gecko-dev/mobile/android/chrome/content/browser.js

6719 lines
234 KiB
JavaScript

// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
let Cc = Components.classes;
let Ci = Components.interfaces;
let Cu = Components.utils;
let Cr = Components.results;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/AddonManager.jsm");
Cu.import("resource://gre/modules/FileUtils.jsm");
#ifdef ACCESSIBILITY
Cu.import("resource://gre/modules/accessibility/AccessFu.jsm");
#endif
XPCOMUtils.defineLazyGetter(this, "PluralForm", function() {
Cu.import("resource://gre/modules/PluralForm.jsm");
return PluralForm;
});
XPCOMUtils.defineLazyGetter(this, "DebuggerServer", function() {
Cu.import("resource://gre/modules/devtools/dbg-server.jsm");
return DebuggerServer;
});
XPCOMUtils.defineLazyGetter(this, "NetUtil", function() {
Cu.import("resource://gre/modules/NetUtil.jsm");
return NetUtil;
});
// Lazily-loaded browser scripts:
[
["HelperApps", "chrome://browser/content/HelperApps.js"],
["SelectHelper", "chrome://browser/content/SelectHelper.js"],
["Readability", "chrome://browser/content/Readability.js"],
["WebAppRT", "chrome://browser/content/WebAppRT.js"],
].forEach(function (aScript) {
let [name, script] = aScript;
XPCOMUtils.defineLazyGetter(window, name, function() {
let sandbox = {};
Services.scriptloader.loadSubScript(script, sandbox);
return sandbox[name];
});
});
XPCOMUtils.defineLazyServiceGetter(this, "Haptic",
"@mozilla.org/widget/hapticfeedback;1", "nsIHapticFeedback");
XPCOMUtils.defineLazyServiceGetter(this, "DOMUtils",
"@mozilla.org/inspector/dom-utils;1", "inIDOMUtils");
XPCOMUtils.defineLazyServiceGetter(window, "URIFixup",
"@mozilla.org/docshell/urifixup;1", "nsIURIFixup");
const kStateActive = 0x00000001; // :active pseudoclass for elements
const kXLinkNamespace = "http://www.w3.org/1999/xlink";
// The element tag names that are considered to receive input. Mouse-down
// events directed to one of these are allowed to go through.
const kElementsReceivingInput = {
applet: true,
audio: true,
button: true,
embed: true,
input: true,
map: true,
select: true,
textarea: true,
video: true
};
const kDefaultCSSViewportWidth = 980;
const kDefaultCSSViewportHeight = 480;
function dump(a) {
Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService).logStringMessage(a);
}
function getBridge() {
return Cc["@mozilla.org/android/bridge;1"].getService(Ci.nsIAndroidBridge);
}
function sendMessageToJava(aMessage) {
return getBridge().handleGeckoMessage(JSON.stringify(aMessage));
}
#ifdef MOZ_CRASHREPORTER
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "CrashReporter",
"@mozilla.org/xre/app-info;1", "nsICrashReporter");
#endif
XPCOMUtils.defineLazyGetter(this, "ContentAreaUtils", function() {
let ContentAreaUtils = {};
Services.scriptloader.loadSubScript("chrome://global/content/contentAreaUtils.js", ContentAreaUtils);
return ContentAreaUtils;
});
XPCOMUtils.defineLazyGetter(this, "Rect", function() {
Cu.import("resource://gre/modules/Geometry.jsm");
return Rect;
});
function resolveGeckoURI(aURI) {
if (aURI.indexOf("chrome://") == 0) {
let registry = Cc['@mozilla.org/chrome/chrome-registry;1'].getService(Ci["nsIChromeRegistry"]);
return registry.convertChromeURL(Services.io.newURI(aURI, null, null)).spec;
} else if (aURI.indexOf("resource://") == 0) {
let handler = Services.io.getProtocolHandler("resource").QueryInterface(Ci.nsIResProtocolHandler);
return handler.resolveURI(Services.io.newURI(aURI, null, null));
}
return aURI;
}
/**
* Cache of commonly used string bundles.
*/
var Strings = {};
[
["brand", "chrome://branding/locale/brand.properties"],
["browser", "chrome://browser/locale/browser.properties"],
["charset", "chrome://global/locale/charsetTitles.properties"]
].forEach(function (aStringBundle) {
let [name, bundle] = aStringBundle;
XPCOMUtils.defineLazyGetter(Strings, name, function() {
return Services.strings.createBundle(bundle);
});
});
var BrowserApp = {
_tabs: [],
_selectedTab: null,
deck: null,
startup: function startup() {
window.QueryInterface(Ci.nsIDOMChromeWindow).browserDOMWindow = new nsBrowserAccess();
dump("zerdatime " + Date.now() + " - browser chrome startup finished.");
this.deck = document.getElementById("browsers");
BrowserEventHandler.init();
ViewportHandler.init();
getBridge().browserApp = this;
Services.obs.addObserver(this, "Tab:Add", false);
Services.obs.addObserver(this, "Tab:Load", false);
Services.obs.addObserver(this, "Tab:Selected", false);
Services.obs.addObserver(this, "Tab:Closed", false);
Services.obs.addObserver(this, "Session:Back", false);
Services.obs.addObserver(this, "Session:Forward", false);
Services.obs.addObserver(this, "Session:Reload", false);
Services.obs.addObserver(this, "Session:Stop", false);
Services.obs.addObserver(this, "SaveAs:PDF", false);
Services.obs.addObserver(this, "Browser:Quit", false);
Services.obs.addObserver(this, "Preferences:Get", false);
Services.obs.addObserver(this, "Preferences:Set", false);
Services.obs.addObserver(this, "ScrollTo:FocusedInput", false);
Services.obs.addObserver(this, "Sanitize:ClearData", false);
Services.obs.addObserver(this, "PanZoom:PanZoom", false);
Services.obs.addObserver(this, "FullScreen:Exit", false);
Services.obs.addObserver(this, "Viewport:Change", false);
Services.obs.addObserver(this, "Viewport:Flush", false);
Services.obs.addObserver(this, "Passwords:Init", false);
Services.obs.addObserver(this, "FormHistory:Init", false);
Services.obs.addObserver(this, "ToggleProfiling", false);
Services.obs.addObserver(this, "sessionstore-state-purge-complete", false);
function showFullScreenWarning() {
NativeWindow.toast.show(Strings.browser.GetStringFromName("alertFullScreenToast"), "short");
}
window.addEventListener("fullscreen", function() {
sendMessageToJava({
gecko: {
type: window.fullScreen ? "ToggleChrome:Show" : "ToggleChrome:Hide"
}
});
}, false);
window.addEventListener("mozfullscreenchange", function() {
sendMessageToJava({
gecko: {
type: document.mozFullScreen ? "DOMFullScreen:Start" : "DOMFullScreen:Stop"
}
});
if (document.mozFullScreen)
showFullScreenWarning();
}, false);
// When a restricted key is pressed in DOM full-screen mode, we should display
// the "Press ESC to exit" warning message.
window.addEventListener("MozShowFullScreenWarning", showFullScreenWarning, true);
NativeWindow.init();
SelectionHandler.init();
Downloads.init();
FindHelper.init();
FormAssistant.init();
OfflineApps.init();
IndexedDB.init();
XPInstallObserver.init();
ConsoleAPI.init();
ClipboardHelper.init();
PermissionsHelper.init();
CharacterEncoding.init();
ActivityObserver.init();
WebappsUI.init();
RemoteDebugger.init();
Reader.init();
UserAgent.init();
ExternalApps.init();
#ifdef MOZ_TELEMETRY_REPORTING
Telemetry.init();
#endif
#ifdef ACCESSIBILITY
AccessFu.attach(window);
#endif
// Init LoginManager
Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager);
// Init FormHistory
Cc["@mozilla.org/satchel/form-history;1"].getService(Ci.nsIFormHistory2);
let loadParams = {};
let url = "about:home";
let restoreMode = 0;
let pinned = false;
if ("arguments" in window) {
if (window.arguments[0])
url = window.arguments[0];
if (window.arguments[1])
restoreMode = window.arguments[1];
if (window.arguments[2])
gScreenWidth = window.arguments[2];
if (window.arguments[3])
gScreenHeight = window.arguments[3];
if (window.arguments[4])
pinned = window.arguments[4];
}
let updated = this.isAppUpdated();
if (pinned) {
WebAppRT.init(updated);
} else {
SearchEngines.init();
this.initContextMenu();
}
if (url == "about:empty")
loadParams.flags = Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_HISTORY;
// XXX maybe we don't do this if the launch was kicked off from external
Services.io.offline = false;
// Broadcast a UIReady message so add-ons know we are finished with startup
let event = document.createEvent("Events");
event.initEvent("UIReady", true, false);
window.dispatchEvent(event);
// Restore the previous session
// restoreMode = 0 means no restore
// restoreMode = 1 means force restore (after an OOM kill)
// restoreMode = 2 means restore only if we haven't crashed multiple times
let ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
if (restoreMode || ss.shouldRestore()) {
// A restored tab should not be active if we are loading a URL
let restoreToFront = false;
sendMessageToJava({
gecko: {
type: "Session:RestoreBegin"
}
});
// Open any commandline URLs, except the homepage
if (url && url != "about:home") {
loadParams.pinned = pinned;
this.addTab(url, loadParams);
} else {
// Let the session make a restored tab active
restoreToFront = true;
}
// Be ready to handle any restore failures by making sure we have a valid tab opened
let restoreCleanup = {
observe: function(aSubject, aTopic, aData) {
Services.obs.removeObserver(restoreCleanup, "sessionstore-windows-restored");
if (aData == "fail") {
BrowserApp.addTab("about:home", {
showProgress: false,
selected: restoreToFront
});
}
sendMessageToJava({
gecko: {
type: "Session:RestoreEnd"
}
});
}
};
Services.obs.addObserver(restoreCleanup, "sessionstore-windows-restored", false);
// Start the restore
ss.restoreLastSession(restoreToFront, restoreMode == 1);
} else {
loadParams.showProgress = (url != "about:home");
loadParams.pinned = pinned;
this.addTab(url, loadParams);
// show telemetry door hanger if we aren't restoring a session
#ifdef MOZ_TELEMETRY_REPORTING
Telemetry.prompt();
#endif
}
if (updated)
this.onAppUpdated();
// notify java that gecko has loaded
sendMessageToJava({
gecko: {
type: "Gecko:Ready"
}
});
// after gecko has loaded, set the checkerboarding pref once at startup (for testing only)
sendMessageToJava({
gecko: {
"type": "Checkerboard:Toggle",
"value": Services.prefs.getBoolPref("gfx.show_checkerboard_pattern")
}
});
},
isAppUpdated: function() {
let savedmstone = null;
try {
savedmstone = Services.prefs.getCharPref("browser.startup.homepage_override.mstone");
} catch (e) {
}
#expand let ourmstone = "__MOZ_APP_VERSION__";
if (ourmstone != savedmstone) {
Services.prefs.setCharPref("browser.startup.homepage_override.mstone", ourmstone);
return savedmstone ? "upgrade" : "new";
}
return "";
},
initContextMenu: function ba_initContextMenu() {
// TODO: These should eventually move into more appropriate classes
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.openInNewTab"),
NativeWindow.contextmenus.linkOpenableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
BrowserApp.addTab(url, { selected: false, parentId: BrowserApp.selectedTab.id });
let newtabStrings = Strings.browser.GetStringFromName("newtabpopup.opened");
let label = PluralForm.get(1, newtabStrings).replace("#1", 1);
NativeWindow.toast.show(label, "short");
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.copyLink"),
NativeWindow.contextmenus.linkCopyableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
NativeWindow.contextmenus._copyStringToDefaultClipboard(url);
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.copyEmailAddress"),
NativeWindow.contextmenus.emailLinkCopyableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
let emailAddr = NativeWindow.contextmenus._stripScheme(url);
NativeWindow.contextmenus._copyStringToDefaultClipboard(emailAddr);
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.copyPhoneNumber"),
NativeWindow.contextmenus.phoneNumberLinkCopyableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
let phoneNumber = NativeWindow.contextmenus._stripScheme(url);
NativeWindow.contextmenus._copyStringToDefaultClipboard(phoneNumber);
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.shareLink"),
NativeWindow.contextmenus.linkShareableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
let title = aTarget.textContent || aTarget.title;
let sharing = Cc["@mozilla.org/uriloader/external-sharing-app-service;1"].getService(Ci.nsIExternalSharingAppService);
sharing.shareWithDefault(url, "text/plain", title);
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.bookmarkLink"),
NativeWindow.contextmenus.linkBookmarkableContext,
function(aTarget) {
let url = NativeWindow.contextmenus._getLinkURL(aTarget);
let title = aTarget.textContent || aTarget.title || url;
sendMessageToJava({
gecko: {
type: "Bookmark:Insert",
url: url,
title: title
}
});
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.fullScreen"),
NativeWindow.contextmenus.SelectorContext("video:not(:-moz-full-screen)"),
function(aTarget) {
aTarget.mozRequestFullScreen();
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.shareImage"),
NativeWindow.contextmenus.imageSaveableContext,
function(aTarget) {
let imageCache = Cc["@mozilla.org/image/cache;1"].getService(Ci.imgICache);
let props = imageCache.findEntryProperties(aTarget.currentURI, aTarget.ownerDocument.characterSet);
let src = aTarget.src;
let type = "";
try {
type = String(props.get("type", Ci.nsISupportsCString));
} catch(ex) {
type = "";
}
sendMessageToJava({
gecko: {
type: "Share:Image",
url: src,
mime: type,
}
});
});
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.saveImage"),
NativeWindow.contextmenus.imageSaveableContext,
function(aTarget) {
let imageCache = Cc["@mozilla.org/image/cache;1"].getService(Ci.imgICache);
let props = imageCache.findEntryProperties(aTarget.currentURI, aTarget.ownerDocument.characterSet);
let contentDisposition = "";
let type = "";
try {
contentDisposition = String(props.get("content-disposition", Ci.nsISupportsCString));
type = String(props.get("type", Ci.nsISupportsCString));
} catch(ex) {
contentDisposition = "";
type = "";
}
ContentAreaUtils.internalSave(aTarget.currentURI.spec, null, null, contentDisposition, type, false, "SaveImageTitle", null, aTarget.ownerDocument.documentURIObject, true, null);
});
},
onAppUpdated: function() {
// initialize the form history and passwords databases on upgrades
Services.obs.notifyObservers(null, "FormHistory:Init", "");
Services.obs.notifyObservers(null, "Passwords:Init", "");
},
shutdown: function shutdown() {
NativeWindow.uninit();
SelectionHandler.uninit();
FormAssistant.uninit();
FindHelper.uninit();
OfflineApps.uninit();
IndexedDB.uninit();
ViewportHandler.uninit();
XPInstallObserver.uninit();
ConsoleAPI.uninit();
CharacterEncoding.uninit();
SearchEngines.uninit();
WebappsUI.uninit();
RemoteDebugger.uninit();
Reader.uninit();
UserAgent.uninit();
ExternalApps.uninit();
#ifdef MOZ_TELEMETRY_REPORTING
Telemetry.uninit();
#endif
},
// This function returns false during periods where the browser displayed document is
// different from the browser content document, so user actions and some kinds of viewport
// updates should be ignored. This period starts when we start loading a new page or
// switch tabs, and ends when the new browser content document has been drawn and handed
// off to the compositor.
isBrowserContentDocumentDisplayed: function() {
if (window.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).isFirstPaint)
return false;
let tab = this.selectedTab;
if (!tab)
return true;
return tab.contentDocumentIsDisplayed;
},
displayedDocumentChanged: function() {
window.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).isFirstPaint = true;
},
get tabs() {
return this._tabs;
},
get selectedTab() {
return this._selectedTab;
},
set selectedTab(aTab) {
if (this._selectedTab == aTab)
return;
if (this._selectedTab)
this._selectedTab.setActive(false);
this._selectedTab = aTab;
if (!aTab)
return;
aTab.setActive(true);
aTab.setResolution(aTab._zoom, true);
this.displayedDocumentChanged();
this.deck.selectedPanel = aTab.browser;
},
get selectedBrowser() {
if (this._selectedTab)
return this._selectedTab.browser;
return null;
},
getTabForId: function getTabForId(aId) {
let tabs = this._tabs;
for (let i=0; i < tabs.length; i++) {
if (tabs[i].id == aId)
return tabs[i];
}
return null;
},
getTabForBrowser: function getTabForBrowser(aBrowser) {
let tabs = this._tabs;
for (let i = 0; i < tabs.length; i++) {
if (tabs[i].browser == aBrowser)
return tabs[i];
}
return null;
},
getTabForWindow: function getTabForWindow(aWindow) {
let tabs = this._tabs;
for (let i = 0; i < tabs.length; i++) {
if (tabs[i].browser.contentWindow == aWindow)
return tabs[i];
}
return null;
},
getBrowserForWindow: function getBrowserForWindow(aWindow) {
let tabs = this._tabs;
for (let i = 0; i < tabs.length; i++) {
if (tabs[i].browser.contentWindow == aWindow)
return tabs[i].browser;
}
return null;
},
getBrowserForDocument: function getBrowserForDocument(aDocument) {
let tabs = this._tabs;
for (let i = 0; i < tabs.length; i++) {
if (tabs[i].browser.contentDocument == aDocument)
return tabs[i].browser;
}
return null;
},
loadURI: function loadURI(aURI, aBrowser, aParams) {
aBrowser = aBrowser || this.selectedBrowser;
if (!aBrowser)
return;
aParams = aParams || {};
let flags = "flags" in aParams ? aParams.flags : Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
let postData = ("postData" in aParams && aParams.postData) ? aParams.postData : null;
let referrerURI = "referrerURI" in aParams ? aParams.referrerURI : null;
let charset = "charset" in aParams ? aParams.charset : null;
if ("showProgress" in aParams) {
let tab = this.getTabForBrowser(aBrowser);
if (tab)
tab.showProgress = aParams.showProgress;
}
try {
aBrowser.loadURIWithFlags(aURI, flags, referrerURI, charset, postData);
} catch(e) {
let tab = this.getTabForBrowser(aBrowser);
if (tab) {
let message = {
gecko: {
type: "Content:LoadError",
tabID: tab.id,
uri: aBrowser.currentURI.spec,
title: aBrowser.contentTitle
}
};
sendMessageToJava(message);
dump("Handled load error: " + e)
}
}
},
addTab: function addTab(aURI, aParams) {
aParams = aParams || {};
let newTab = new Tab(aURI, aParams);
this._tabs.push(newTab);
let selected = "selected" in aParams ? aParams.selected : true;
if (selected)
this.selectedTab = newTab;
let pinned = "pinned" in aParams ? aParams.pinned : false;
if (pinned) {
let ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
ss.setTabValue(newTab, "appOrigin", aURI);
}
let evt = document.createEvent("UIEvents");
evt.initUIEvent("TabOpen", true, false, window, null);
newTab.browser.dispatchEvent(evt);
return newTab;
},
// Use this method to close a tab from JS. This method sends a message
// to Java to close the tab in the Java UI (we'll get a Tab:Closed message
// back from Java when that happens).
closeTab: function closeTab(aTab) {
if (!aTab) {
Cu.reportError("Error trying to close tab (tab doesn't exist)");
return;
}
let message = {
gecko: {
type: "Tab:Close",
tabID: aTab.id
}
};
sendMessageToJava(message);
},
// Calling this will update the state in BrowserApp after a tab has been
// closed in the Java UI.
_handleTabClosed: function _handleTabClosed(aTab) {
if (aTab == this.selectedTab)
this.selectedTab = null;
let evt = document.createEvent("UIEvents");
evt.initUIEvent("TabClose", true, false, window, null);
aTab.browser.dispatchEvent(evt);
aTab.destroy();
this._tabs.splice(this._tabs.indexOf(aTab), 1);
},
// Use this method to select a tab from JS. This method sends a message
// to Java to select the tab in the Java UI (we'll get a Tab:Selected message
// back from Java when that happens).
selectTab: function selectTab(aTab) {
if (!aTab) {
Cu.reportError("Error trying to select tab (tab doesn't exist)");
return;
}
// There's nothing to do if the tab is already selected
if (aTab == this.selectedTab)
return;
let message = {
gecko: {
type: "Tab:Select",
tabID: aTab.id
}
};
sendMessageToJava(message);
},
// This method updates the state in BrowserApp after a tab has been selected
// in the Java UI.
_handleTabSelected: function _handleTabSelected(aTab) {
this.selectedTab = aTab;
let evt = document.createEvent("UIEvents");
evt.initUIEvent("TabSelect", true, false, window, null);
aTab.browser.dispatchEvent(evt);
},
quit: function quit() {
// Figure out if there's at least one other browser window around.
let lastBrowser = true;
let e = Services.wm.getEnumerator("navigator:browser");
while (e.hasMoreElements() && lastBrowser) {
let win = e.getNext();
if (win != window)
lastBrowser = false;
}
if (lastBrowser) {
// Let everyone know we are closing the last browser window
let closingCanceled = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
Services.obs.notifyObservers(closingCanceled, "browser-lastwindow-close-requested", null);
if (closingCanceled.data)
return;
Services.obs.notifyObservers(null, "browser-lastwindow-close-granted", null);
}
window.QueryInterface(Ci.nsIDOMChromeWindow).minimize();
window.close();
},
saveAsPDF: function saveAsPDF(aBrowser) {
// Create the final destination file location
let fileName = ContentAreaUtils.getDefaultFileName(aBrowser.contentTitle, aBrowser.currentURI, null, null);
fileName = fileName.trim() + ".pdf";
let dm = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager);
let downloadsDir = dm.defaultDownloadsDirectory;
let file = downloadsDir.clone();
file.append(fileName);
file.createUnique(file.NORMAL_FILE_TYPE, parseInt("666", 8));
let printSettings = Cc["@mozilla.org/gfx/printsettings-service;1"].getService(Ci.nsIPrintSettingsService).newPrintSettings;
printSettings.printSilent = true;
printSettings.showPrintProgress = false;
printSettings.printBGImages = true;
printSettings.printBGColors = true;
printSettings.printToFile = true;
printSettings.toFileName = file.path;
printSettings.printFrameType = Ci.nsIPrintSettings.kFramesAsIs;
printSettings.outputFormat = Ci.nsIPrintSettings.kOutputFormatPDF;
//XXX we probably need a preference here, the header can be useful
printSettings.footerStrCenter = "";
printSettings.footerStrLeft = "";
printSettings.footerStrRight = "";
printSettings.headerStrCenter = "";
printSettings.headerStrLeft = "";
printSettings.headerStrRight = "";
// Create a valid mimeInfo for the PDF
let ms = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
let mimeInfo = ms.getFromTypeAndExtension("application/pdf", "pdf");
let webBrowserPrint = aBrowser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebBrowserPrint);
let cancelable = {
cancel: function (aReason) {
webBrowserPrint.cancel();
}
}
let download = dm.addDownload(Ci.nsIDownloadManager.DOWNLOAD_TYPE_DOWNLOAD,
aBrowser.currentURI,
Services.io.newFileURI(file), "", mimeInfo,
Date.now() * 1000, null, cancelable);
webBrowserPrint.print(printSettings, download);
},
getPreferences: function getPreferences(aPrefNames) {
try {
let json = JSON.parse(aPrefNames);
let prefs = [];
for each (let prefName in json) {
let pref = {
name: prefName
};
// The plugin pref is actually two separate prefs, so
// we need to handle it differently
if (prefName == "plugin.enable") {
// Use a string type for java's ListPreference
pref.type = "string";
pref.value = PluginHelper.getPluginPreference();
prefs.push(pref);
continue;
} else if (prefName == MasterPassword.pref) {
// Master password is not a "real" pref
pref.type = "bool";
pref.value = MasterPassword.enabled;
prefs.push(pref);
continue;
}
try {
switch (Services.prefs.getPrefType(prefName)) {
case Ci.nsIPrefBranch.PREF_BOOL:
pref.type = "bool";
pref.value = Services.prefs.getBoolPref(prefName);
break;
case Ci.nsIPrefBranch.PREF_INT:
pref.type = "int";
pref.value = Services.prefs.getIntPref(prefName);
break;
case Ci.nsIPrefBranch.PREF_STRING:
default:
pref.type = "string";
try {
// Try in case it's a localized string (will throw an exception if not)
pref.value = Services.prefs.getComplexValue(prefName, Ci.nsIPrefLocalizedString).data;
} catch (e) {
pref.value = Services.prefs.getCharPref(prefName);
}
break;
}
} catch (e) {
dump("Error reading pref [" + prefName + "]: " + e);
// preference does not exist; do not send it
continue;
}
// some preferences use integers or strings instead of booleans for
// indicating enabled/disabled. since the java ui uses the type to
// determine which ui elements to show, we need to normalize these
// preferences to be actual booleans.
switch (prefName) {
case "network.cookie.cookieBehavior":
pref.type = "bool";
pref.value = pref.value == 0;
break;
case "font.size.inflation.minTwips":
pref.type = "string";
pref.value = pref.value.toString();
break;
}
prefs.push(pref);
}
sendMessageToJava({
gecko: {
type: "Preferences:Data",
preferences: prefs
}
});
} catch (e) {}
},
setPreferences: function setPreferences(aPref) {
let json = JSON.parse(aPref);
if (json.name == "plugin.enable") {
// The plugin pref is actually two separate prefs, so
// we need to handle it differently
PluginHelper.setPluginPreference(json.value);
return;
} else if (json.name == MasterPassword.pref) {
// MasterPassword pref is not real, we just need take action and leave
if (MasterPassword.enabled)
MasterPassword.removePassword(json.value);
else
MasterPassword.setPassword(json.value);
return;
}
// when sending to java, we normalized special preferences that use
// integers and strings to represent booleans. here, we convert them back
// to their actual types so we can store them.
switch (json.name) {
case "network.cookie.cookieBehavior":
json.type = "int";
json.value = (json.value ? 0 : 2);
break;
case "font.size.inflation.minTwips":
json.type = "int";
json.value = parseInt(json.value);
break;
}
if (json.type == "bool") {
Services.prefs.setBoolPref(json.name, json.value);
} else if (json.type == "int") {
Services.prefs.setIntPref(json.name, json.value);
} else {
let pref = Cc["@mozilla.org/pref-localizedstring;1"].createInstance(Ci.nsIPrefLocalizedString);
pref.data = json.value;
Services.prefs.setComplexValue(json.name, Ci.nsISupportsString, pref);
}
},
sanitize: function (aItems) {
let sanitizer = new Sanitizer();
let json = JSON.parse(aItems);
let success = true;
for (let key in json) {
if (!json[key])
continue;
try {
switch (key) {
case "history_downloads":
sanitizer.clearItem("history");
sanitizer.clearItem("downloads");
break;
case "cookies_sessions":
sanitizer.clearItem("cookies");
sanitizer.clearItem("sessions");
break;
default:
sanitizer.clearItem(key);
}
} catch (e) {
dump("sanitize error: " + e);
success = false;
}
}
sendMessageToJava({
gecko: {
type: "Sanitize:Finished",
success: success
}
});
},
scrollToFocusedInput: function(aBrowser) {
let doc = aBrowser.contentDocument;
if (!doc)
return;
let focused = doc.activeElement;
if ((focused instanceof HTMLInputElement && focused.mozIsTextField(false)) || (focused instanceof HTMLTextAreaElement)) {
let tab = BrowserApp.getTabForBrowser(aBrowser);
let win = aBrowser.contentWindow;
// tell gecko to scroll the field into view. this will scroll any nested scrollable elements
// as well as the browser's content window, and modify the scrollX and scrollY on the content window.
focused.scrollIntoView(false);
// As Gecko isn't aware of the zoom level we're drawing with, the element may not entirely be in view
// yet. Check for that, and scroll some extra to compensate, if necessary.
let focusedRect = focused.getBoundingClientRect();
let visibleContentWidth = gScreenWidth / tab._zoom;
let visibleContentHeight = gScreenHeight / tab._zoom;
let positionChanged = false;
let scrollX = win.scrollX;
let scrollY = win.scrollY;
if (focusedRect.right >= visibleContentWidth && focusedRect.left > 0) {
// the element is too far off the right side, so we need to scroll to the right more
scrollX += Math.min(focusedRect.left, focusedRect.right - visibleContentWidth);
positionChanged = true;
} else if (focusedRect.left < 0) {
// the element is too far off the left side, so we need to scroll to the left more
scrollX += focusedRect.left;
positionChanged = true;
}
if (focusedRect.bottom >= visibleContentHeight && focusedRect.top > 0) {
// the element is too far down, so we need to scroll down more
scrollY += Math.min(focusedRect.top, focusedRect.bottom - visibleContentHeight);
positionChanged = true;
} else if (focusedRect.top < 0) {
// the element is too far up, so we need to scroll up more
scrollY += focusedRect.top;
positionChanged = true;
}
if (positionChanged)
win.scrollTo(scrollX, scrollY);
// update userScrollPos so that we don't send a duplicate viewport update by triggering
// our scroll listener
tab.userScrollPos.x = win.scrollX;
tab.userScrollPos.y = win.scrollY;
// finally, let java know where we ended up
tab.sendViewportUpdate();
}
},
observe: function(aSubject, aTopic, aData) {
let browser = this.selectedBrowser;
if (!browser)
return;
if (aTopic == "Session:Back") {
browser.goBack();
} else if (aTopic == "Session:Forward") {
browser.goForward();
} else if (aTopic == "Session:Reload") {
browser.reload();
} else if (aTopic == "Session:Stop") {
browser.stop();
} else if (aTopic == "Tab:Add" || aTopic == "Tab:Load") {
let data = JSON.parse(aData);
// Pass LOAD_FLAGS_DISALLOW_INHERIT_OWNER to prevent any loads from
// inheriting the currently loaded document's principal.
let flags = Ci.nsIWebNavigation.LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP;
if (data.userEntered)
flags |= Ci.nsIWebNavigation.LOAD_FLAGS_DISALLOW_INHERIT_OWNER;
let params = {
selected: true,
parentId: ("parentId" in data) ? data.parentId : -1,
flags: flags
};
let url = data.url;
if (data.engine) {
let engine = Services.search.getEngineByName(data.engine);
if (engine) {
let submission = engine.getSubmission(url);
url = submission.uri.spec;
params.postData = submission.postData;
}
}
// Don't show progress throbber for about:home
if (url == "about:home")
params.showProgress = false;
if (aTopic == "Tab:Add")
this.addTab(url, params);
else
this.loadURI(url, browser, params);
} else if (aTopic == "Tab:Selected") {
this._handleTabSelected(this.getTabForId(parseInt(aData)));
} else if (aTopic == "Tab:Closed") {
this._handleTabClosed(this.getTabForId(parseInt(aData)));
} else if (aTopic == "Browser:Quit") {
this.quit();
} else if (aTopic == "SaveAs:PDF") {
this.saveAsPDF(browser);
} else if (aTopic == "Preferences:Get") {
this.getPreferences(aData);
} else if (aTopic == "Preferences:Set") {
this.setPreferences(aData);
} else if (aTopic == "ScrollTo:FocusedInput") {
this.scrollToFocusedInput(browser);
} else if (aTopic == "Sanitize:ClearData") {
this.sanitize(aData);
} else if (aTopic == "FullScreen:Exit") {
browser.contentDocument.mozCancelFullScreen();
} else if (aTopic == "Viewport:Change") {
if (this.isBrowserContentDocumentDisplayed())
this.selectedTab.setViewport(JSON.parse(aData));
} else if (aTopic == "Viewport:Flush") {
this.displayedDocumentChanged();
} else if (aTopic == "Passwords:Init") {
let storage = Components.classes["@mozilla.org/login-manager/storage/mozStorage;1"].
getService(Components.interfaces.nsILoginManagerStorage);
storage.init();
sendMessageToJava({gecko: { type: "Passwords:Init:Return" }});
Services.obs.removeObserver(this, "Passwords:Init", false);
} else if (aTopic == "FormHistory:Init") {
let fh = Cc["@mozilla.org/satchel/form-history;1"].getService(Ci.nsIFormHistory2);
// Force creation/upgrade of formhistory.sqlite
let db = fh.DBConnection;
sendMessageToJava({gecko: { type: "FormHistory:Init:Return" }});
Services.obs.removeObserver(this, "FormHistory:Init", false);
} else if (aTopic == "sessionstore-state-purge-complete") {
sendMessageToJava({ gecko: { type: "Session:StatePurged" }});
} else if (aTopic == "ToggleProfiling") {
let profiler = Cc["@mozilla.org/tools/profiler;1"].
getService(Ci.nsIProfiler);
if (profiler.IsActive()) {
profiler.StopProfiler();
} else {
profiler.StartProfiler(100000, 25, ["stackwalk"], 1);
}
}
},
get defaultBrowserWidth() {
delete this.defaultBrowserWidth;
let width = Services.prefs.getIntPref("browser.viewport.desktopWidth");
return this.defaultBrowserWidth = width;
},
// nsIAndroidBrowserApp
getBrowserTab: function(tabId) {
return this.getTabForId(tabId);
}
};
var NativeWindow = {
init: function() {
Services.obs.addObserver(this, "Menu:Clicked", false);
Services.obs.addObserver(this, "Doorhanger:Reply", false);
this.contextmenus.init();
},
uninit: function() {
Services.obs.removeObserver(this, "Menu:Clicked");
Services.obs.removeObserver(this, "Doorhanger:Reply");
this.contextmenus.uninit();
},
toast: {
show: function(aMessage, aDuration) {
sendMessageToJava({
gecko: {
type: "Toast:Show",
message: aMessage,
duration: aDuration
}
});
}
},
menu: {
_callbacks: [],
_menuId: 0,
add: function(aName, aIcon, aCallback) {
sendMessageToJava({
gecko: {
type: "Menu:Add",
name: aName,
icon: aIcon,
id: this._menuId
}
});
this._callbacks[this._menuId] = aCallback;
this._menuId++;
return this._menuId - 1;
},
remove: function(aId) {
sendMessageToJava({ gecko: {type: "Menu:Remove", id: aId }});
}
},
doorhanger: {
_callbacks: {},
_callbacksId: 0,
_promptId: 0,
/**
* @param aOptions
* An options JavaScript object holding additional properties for the
* notification. The following properties are currently supported:
* persistence: An integer. The notification will not automatically
* dismiss for this many page loads. If persistence is set
* to -1, the doorhanger will never automatically dismiss.
* persistWhileVisible:
* A boolean. If true, a visible notification will always
* persist across location changes.
* timeout: A time in milliseconds. The notification will not
* automatically dismiss before this time.
* checkbox: A string to appear next to a checkbox under the notification
* message. The button callback functions will be called with
* the checked state as an argument.
*/
show: function(aMessage, aValue, aButtons, aTabID, aOptions) {
aButtons.forEach((function(aButton) {
this._callbacks[this._callbacksId] = { cb: aButton.callback, prompt: this._promptId };
aButton.callback = this._callbacksId;
this._callbacksId++;
}).bind(this));
this._promptId++;
let json = {
gecko: {
type: "Doorhanger:Add",
message: aMessage,
value: aValue,
buttons: aButtons,
// use the current tab if none is provided
tabID: aTabID || BrowserApp.selectedTab.id,
options: aOptions || {}
}
};
sendMessageToJava(json);
},
hide: function(aValue, aTabID) {
sendMessageToJava({ gecko: {
type: "Doorhanger:Remove",
value: aValue,
tabID: aTabID
}});
}
},
observe: function(aSubject, aTopic, aData) {
if (aTopic == "Menu:Clicked") {
if (this.menu._callbacks[aData])
this.menu._callbacks[aData]();
} else if (aTopic == "Doorhanger:Reply") {
let data = JSON.parse(aData);
let reply_id = data["callback"];
if (this.doorhanger._callbacks[reply_id]) {
// Pass the value of the optional checkbox to the callback
let checked = data["checked"];
this.doorhanger._callbacks[reply_id].cb(checked);
let prompt = this.doorhanger._callbacks[reply_id].prompt;
for (let id in this.doorhanger._callbacks) {
if (this.doorhanger._callbacks[id].prompt == prompt) {
delete this.doorhanger._callbacks[id];
}
}
}
}
},
contextmenus: {
items: {}, // a list of context menu items that we may show
_contextId: 0, // id to assign to new context menu items if they are added
init: function() {
Services.obs.addObserver(this, "Gesture:LongPress", false);
},
uninit: function() {
Services.obs.removeObserver(this, "Gesture:LongPress");
},
add: function(aName, aSelector, aCallback) {
if (!aName)
throw "Menu items must have a name";
let item = {
name: aName,
context: aSelector,
callback: aCallback,
matches: function(aElt) {
return this.context.matches(aElt);
},
getValue: function(aElt) {
return {
label: (typeof this.name == "function") ? this.name(aElt) : this.name,
id: this.id
}
}
};
item.id = this._contextId++;
this.items[item.id] = item;
return item.id;
},
remove: function(aId) {
delete this.items[aId];
},
SelectorContext: function(aSelector) {
return {
matches: function(aElt) {
if (aElt.mozMatchesSelector)
return aElt.mozMatchesSelector(aSelector);
return false;
}
}
},
linkOpenableContext: {
matches: function linkOpenableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
let scheme = uri.scheme;
let dontOpen = /^(mailto|javascript|news|snews)$/;
return (scheme && !dontOpen.test(scheme));
}
return false;
}
},
linkCopyableContext: {
matches: function linkCopyableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
let scheme = uri.scheme;
let dontCopy = /^(mailto|tel)$/;
return (scheme && !dontCopy.test(scheme));
}
return false;
}
},
emailLinkCopyableContext: {
matches: function emailLinkCopyableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
return uri.schemeIs("mailto");
}
return false;
}
},
phoneNumberLinkCopyableContext: {
matches: function phoneNumberLinkCopyableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
return uri.schemeIs("tel");
}
return false;
}
},
linkShareableContext: {
matches: function linkShareableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
let scheme = uri.scheme;
let dontShare = /^(chrome|about|file|javascript|resource)$/;
return (scheme && !dontShare.test(scheme));
}
return false;
}
},
linkBookmarkableContext: {
matches: function linkBookmarkableContextMatches(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
if (uri) {
let scheme = uri.scheme;
let dontBookmark = /^(mailto)$/;
return (scheme && !dontBookmark.test(scheme));
}
return false;
}
},
textContext: {
matches: function textContext(aElement) {
return ((aElement instanceof Ci.nsIDOMHTMLInputElement && aElement.mozIsTextField(false))
|| aElement instanceof Ci.nsIDOMHTMLTextAreaElement);
}
},
imageSaveableContext: {
matches: function imageSaveableContextMatches(aElement) {
if (aElement instanceof Ci.nsIImageLoadingContent && aElement.currentURI) {
// The image must be loaded to allow saving
let request = aElement.getRequest(Ci.nsIImageLoadingContent.CURRENT_REQUEST);
return (request && (request.imageStatus & request.STATUS_SIZE_AVAILABLE));
}
return false;
}
},
_sendToContent: function(aX, aY) {
// initially we look for nearby clickable elements. If we don't find one we fall back to using whatever this click was on
let rootElement = ElementTouchHelper.elementFromPoint(BrowserApp.selectedBrowser.contentWindow, aX, aY);
if (!rootElement)
rootElement = ElementTouchHelper.anyElementFromPoint(BrowserApp.selectedBrowser.contentWindow, aX, aY)
this.menuitems = null;
let element = rootElement;
if (!element)
return;
while (element) {
for each (let item in this.items) {
// since we'll have to spin through this for each element, check that
// it is not already in the list
if ((!this.menuitems || !this.menuitems[item.id]) && item.matches(element)) {
if (!this.menuitems)
this.menuitems = {};
this.menuitems[item.id] = item;
}
}
if (this.linkOpenableContext.matches(element) || this.textContext.matches(element))
break;
element = element.parentNode;
}
// only send the contextmenu event to content if we are planning to show a context menu (i.e. not on every long tap)
if (!this.textContext.matches(element) && this.menuitems) {
let event = rootElement.ownerDocument.createEvent("MouseEvent");
event.initMouseEvent("contextmenu", true, true, content,
0, aX, aY, aX, aY, false, false, false, false,
0, null);
rootElement.ownerDocument.defaultView.addEventListener("contextmenu", this, false);
rootElement.dispatchEvent(event);
} else {
// Otherwise, let the selection handler take over
SelectionHandler.startSelection(rootElement, aX, aY);
}
},
_show: function(aEvent) {
if (aEvent.defaultPrevented)
return;
Haptic.performSimpleAction(Haptic.LongPress);
let popupNode = aEvent.originalTarget;
let title = "";
if (popupNode.hasAttribute("title")) {
title = popupNode.getAttribute("title")
} else if ((popupNode instanceof Ci.nsIDOMHTMLAnchorElement && popupNode.href) ||
(popupNode instanceof Ci.nsIDOMHTMLAreaElement && popupNode.href)) {
title = this._getLinkURL(popupNode);
} else if (popupNode instanceof Ci.nsIImageLoadingContent && popupNode.currentURI) {
title = popupNode.currentURI.spec;
} else if (popupNode instanceof Ci.nsIDOMHTMLMediaElement) {
title = (popupNode.currentSrc || popupNode.src);
}
// convert this.menuitems object to an array for sending to native code
let itemArray = [];
for each (let item in this.menuitems) {
itemArray.push(item.getValue(popupNode));
}
let msg = {
gecko: {
type: "Prompt:Show",
title: title,
listitems: itemArray
}
};
let data = JSON.parse(sendMessageToJava(msg));
let selectedId = itemArray[data.button].id;
let selectedItem = this.menuitems[selectedId];
if (selectedItem && selectedItem.callback) {
while (popupNode) {
if (selectedItem.matches(popupNode)) {
selectedItem.callback.call(selectedItem, popupNode);
break;
}
popupNode = popupNode.parentNode;
}
}
this.menuitems = null;
},
handleEvent: function(aEvent) {
aEvent.target.ownerDocument.defaultView.removeEventListener("contextmenu", this, false);
this._show(aEvent);
},
observe: function(aSubject, aTopic, aData) {
BrowserEventHandler._cancelTapHighlight();
let data = JSON.parse(aData);
// content gets first crack at cancelling context menus
this._sendToContent(data.x, data.y);
},
// XXX - These are stolen from Util.js, we should remove them if we bring it back
makeURLAbsolute: function makeURLAbsolute(base, url) {
// Note: makeURI() will throw if url is not a valid URI
return this.makeURI(url, null, this.makeURI(base)).spec;
},
makeURI: function makeURI(aURL, aOriginCharset, aBaseURI) {
return Services.io.newURI(aURL, aOriginCharset, aBaseURI);
},
_getLink: function(aElement) {
if (aElement.nodeType == Ci.nsIDOMNode.ELEMENT_NODE &&
((aElement instanceof Ci.nsIDOMHTMLAnchorElement && aElement.href) ||
(aElement instanceof Ci.nsIDOMHTMLAreaElement && aElement.href) ||
aElement instanceof Ci.nsIDOMHTMLLinkElement ||
aElement.getAttributeNS(kXLinkNamespace, "type") == "simple")) {
try {
let url = NativeWindow.contextmenus._getLinkURL(aElement);
return Services.io.newURI(url, null, null);
} catch (e) {}
}
return null;
},
_getLinkURL: function ch_getLinkURL(aLink) {
let href = aLink.href;
if (href)
return href;
href = aLink.getAttributeNS(kXLinkNamespace, "href");
if (!href || !href.match(/\S/)) {
// Without this we try to save as the current doc,
// for example, HTML case also throws if empty
throw "Empty href";
}
return this.makeURLAbsolute(aLink.baseURI, href);
},
_copyStringToDefaultClipboard: function(aString) {
let clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
clipboard.copyString(aString);
},
_stripScheme: function(aString) {
return aString.slice(aString.indexOf(":") + 1);
}
}
};
var SelectionHandler = {
HANDLE_TYPE_START: "START",
HANDLE_TYPE_END: "END",
// Keeps track of data about the dimensions of the selection. Coordinates
// stored here are relative to the _view window.
cache: null,
_active: false,
// The window that holds the selection (can be a sub-frame)
get _view() {
if (this._viewRef)
return this._viewRef.get();
return null;
},
set _view(aView) {
this._viewRef = Cu.getWeakReference(aView);
},
// The target can be a window or an input element
get _target() {
if (this._targetRef)
return this._targetRef.get();
return null;
},
set _target(aTarget) {
this._targetRef = Cu.getWeakReference(aTarget);
},
get _cwu() {
return BrowserApp.selectedBrowser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIDOMWindowUtils);
},
_isRTL: false,
init: function sh_init() {
Services.obs.addObserver(this, "Gesture:SingleTap", false);
Services.obs.addObserver(this, "Window:Resize", false);
Services.obs.addObserver(this, "Tab:Selected", false);
Services.obs.addObserver(this, "after-viewport-change", false);
Services.obs.addObserver(this, "TextSelection:Move", false);
Services.obs.addObserver(this, "TextSelection:Position", false);
},
uninit: function sh_uninit() {
Services.obs.removeObserver(this, "Gesture:SingleTap");
Services.obs.removeObserver(this, "Window:Resize");
Services.obs.removeObserver(this, "Tab:Selected");
Services.obs.removeObserver(this, "after-viewport-change");
Services.obs.removeObserver(this, "TextSelection:Move");
Services.obs.removeObserver(this, "TextSelection:Position");
},
observe: function sh_observe(aSubject, aTopic, aData) {
if (!this._active)
return;
switch (aTopic) {
case "Gesture:SingleTap": {
let data = JSON.parse(aData);
this.endSelection(data.x, data.y);
break;
}
case "Tab:Selected":
case "Window:Resize": {
// Knowing when the page is done drawing is hard, so let's just cancel
// the selection when the window changes. We should fix this later.
this.endSelection();
break;
}
case "after-viewport-change": {
// Update the cache after the viewport changes (e.g. panning, zooming).
this.updateCacheForSelection();
break;
}
case "TextSelection:Move": {
let data = JSON.parse(aData);
this.moveSelection(data.handleType == this.HANDLE_TYPE_START, data.x, data.y);
break;
}
case "TextSelection:Position": {
let data = JSON.parse(aData);
// Reverse the handles if necessary.
let selectionReversed = this.updateCacheForSelection(data.handleType == this.HANDLE_TYPE_START);
if (selectionReversed) {
// Re-send mouse events to update the selection corresponding to the new handles.
if (this._isRTL) {
this._sendMouseEvents(this.cache.end.x, this.cache.end.y, false);
this._sendMouseEvents(this.cache.start.x, this.cache.start.y, true);
} else {
this._sendMouseEvents(this.cache.start.x, this.cache.start.y, false);
this._sendMouseEvents(this.cache.end.x, this.cache.end.y, true);
}
}
// Position the handles to align with the edges of the selection.
this.positionHandles();
break;
}
}
},
handleEvent: function sh_handleEvent(aEvent) {
if (!this._active)
return;
switch (aEvent.type) {
case "pagehide":
this.endSelection();
break;
}
},
_ignoreCollapsedSelection: false,
notifySelectionChanged: function sh_notifySelectionChanged(aDoc, aSel, aReason) {
if (aSel.isCollapsed) {
// Bail if we're ignoring events for a collapsed selection.
if (this._ignoreCollapsedSelection)
return;
// If the selection is collapsed because of one of the mouse events we
// sent while moving the handle, don't get rid of the selection handles.
if (aReason & Ci.nsISelectionListener.MOUSEDOWN_REASON) {
this._ignoreCollapsedSelection = true;
return;
}
// Otherwise, we do want to end the selection.
this.endSelection();
}
this._ignoreCollapsedSelection = false;
},
// aX/aY are in top-level window browser coordinates
startSelection: function sh_startSelection(aElement, aX, aY) {
if (this._active) {
// If the user long tapped on the selection, show a context menu
if (this._pointInSelection(aX, aY)) {
this.showContextMenu(aX, aY);
return;
}
// Clear out any existing selection
this.endSelection();
}
// Get the element's view
this._view = aElement.ownerDocument.defaultView;
if (aElement instanceof Ci.nsIDOMNSEditableElement)
this._target = aElement;
else
this._target = this._view;
this._view.addEventListener("pagehide", this, false);
this._isRTL = (this._view.getComputedStyle(aElement, "").direction == "rtl");
// Remove any previous selected or created ranges. Tapping anywhere on a
// page will create an empty range.
let selection = this.getSelection();
selection.removeAllRanges();
// Position the caret using a fake mouse click sent to the top-level window
this._sendMouseEvents(aX, aY, false);
try {
let selectionController = this.getSelectionController();
// Select the word nearest the caret
selectionController.wordMove(false, false);
// Move forward in LTR, backward in RTL
selectionController.wordMove(!this._isRTL, true);
} catch(e) {
// If we couldn't select the word at the given point, bail
this._cleanUp();
return;
}
// If there isn't an appropriate selection, bail
if (!selection.rangeCount || !selection.getRangeAt(0) || !selection.toString().trim().length) {
selection.collapseToStart();
this._cleanUp();
return;
}
// Add a listener to end the selection if it's removed programatically
selection.QueryInterface(Ci.nsISelectionPrivate).addSelectionListener(this);
// Initialize the cache
this.cache = { start: {}, end: {}};
this.updateCacheForSelection();
this.showHandles();
this._active = true;
},
getSelection: function sh_getSelection() {
if (this._target instanceof Ci.nsIDOMNSEditableElement)
return this._target.QueryInterface(Ci.nsIDOMNSEditableElement).editor.selection;
else
return this._target.getSelection();
},
getSelectionController: function sh_getSelectionController() {
if (this._target instanceof Ci.nsIDOMNSEditableElement)
return this._target.QueryInterface(Ci.nsIDOMNSEditableElement).editor.selectionController;
else
return this._target.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIWebNavigation).
QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsISelectionDisplay).
QueryInterface(Ci.nsISelectionController);
},
showContextMenu: function sh_showContextMenu(aX, aY) {
let [SELECT_ALL, COPY, SHARE] = [0, 1, 2];
let listitems = [
{ label: Strings.browser.GetStringFromName("contextmenu.selectAll"), id: SELECT_ALL },
{ label: Strings.browser.GetStringFromName("contextmenu.copy"), id: COPY },
{ label: Strings.browser.GetStringFromName("contextmenu.share"), id: SHARE }
];
let msg = {
gecko: {
type: "Prompt:Show",
title: "",
listitems: listitems
}
};
let id = JSON.parse(sendMessageToJava(msg)).button;
switch (id) {
case SELECT_ALL: {
let selectionController = this.getSelectionController();
selectionController.selectAll();
this.updateCacheForSelection();
this.positionHandles();
break;
}
case COPY: {
// Passing coordinates to endSelection takes care of copying for us
this.endSelection(aX, aY);
break;
}
case SHARE: {
let selectedText = this.endSelection();
sendMessageToJava({
gecko: {
type: "Share:Text",
text: selectedText
}
});
break;
}
}
},
// Moves the ends of the selection in the page. aX/aY are in top-level window
// browser coordinates.
moveSelection: function sh_moveSelection(aIsStartHandle, aX, aY) {
// Update the handle position as it's dragged.
if (aIsStartHandle) {
this.cache.start.x = aX;
this.cache.start.y = aY;
} else {
this.cache.end.x = aX;
this.cache.end.y = aY;
}
// The handles work the same on both LTR and RTL pages, but the underlying selection
// works differently, so we need to reverse how we send mouse events on RTL pages.
if (this._isRTL) {
// Position the caret at the end handle using a fake mouse click
if (!aIsStartHandle)
this._sendMouseEvents(this.cache.end.x, this.cache.end.y, false);
// Selects text between the carat and the start handle using a fake shift+click
this._sendMouseEvents(this.cache.start.x, this.cache.start.y, true);
} else {
// Position the caret at the start handle using a fake mouse click
if (aIsStartHandle)
this._sendMouseEvents(this.cache.start.x, this.cache.start.y, false);
// Selects text between the carat and the end handle using a fake shift+click
this._sendMouseEvents( this.cache.end.x, this.cache.end.y, true);
}
},
_sendMouseEvents: function sh_sendMouseEvents(aX, aY, useShift) {
// Send mouse event 1px too high to prevent selection from entering the line below where it should be
this._cwu.sendMouseEventToWindow("mousedown", aX, aY - 1, 0, 0, useShift ? Ci.nsIDOMNSEvent.SHIFT_MASK : 0, true);
this._cwu.sendMouseEventToWindow("mouseup", aX, aY - 1, 0, 0, useShift ? Ci.nsIDOMNSEvent.SHIFT_MASK : 0, true);
},
// aX/aY are in top-level window browser coordinates
endSelection: function sh_endSelection(aX, aY) {
if (!this._active)
return "";
this._active = false;
this.hideHandles();
let selectedText = "";
let pointInSelection = false;
if (this._view) {
let selection = this.getSelection();
if (selection) {
// Get the text before we clear the selection!
selectedText = selection.toString().trim();
// Also figure out if the point is in the selection before we clear it.
if (arguments.length == 2 && this._pointInSelection(aX, aY))
pointInSelection = true;
selection.removeAllRanges();
selection.QueryInterface(Ci.nsISelectionPrivate).removeSelectionListener(this);
}
}
// Only try copying text if there's text to copy!
if (pointInSelection && selectedText.length) {
let element = ElementTouchHelper.anyElementFromPoint(BrowserApp.selectedBrowser.contentWindow, aX, aY);
// Only try copying text if the tap happens in the same view
if (element.ownerDocument.defaultView == this._view) {
let clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
clipboard.copyString(selectedText, element.ownerDocument);
NativeWindow.toast.show(Strings.browser.GetStringFromName("selectionHelper.textCopied"), "short");
}
}
this._cleanUp();
return selectedText;
},
_cleanUp: function sh_cleanUp() {
this._view.removeEventListener("pagehide", this, false);
this._view = null;
this._target = null;
this._isRTL = false;
this.cache = null;
},
_getViewOffset: function sh_getViewOffset() {
let offset = { x: 0, y: 0 };
let win = this._view;
// Recursively look through frames to compute the total position offset.
while (win.frameElement) {
let rect = win.frameElement.getBoundingClientRect();
offset.x += rect.left;
offset.y += rect.top;
win = win.parent;
}
return offset;
},
_pointInSelection: function sh_pointInSelection(aX, aY) {
let offset = this._getViewOffset();
let rangeRect = this.getSelection().getRangeAt(0).getBoundingClientRect();
let radius = ElementTouchHelper.getTouchRadius();
return (aX - offset.x > rangeRect.left - radius.left &&
aX - offset.x < rangeRect.right + radius.right &&
aY - offset.y > rangeRect.top - radius.top &&
aY - offset.y < rangeRect.bottom + radius.bottom);
},
// Returns true if the selection has been reversed. Takes optional aIsStartHandle
// param to decide whether the selection has been reversed.
updateCacheForSelection: function sh_updateCacheForSelection(aIsStartHandle) {
let selection = this.getSelection();
let rects = selection.getRangeAt(0).getClientRects();
let start = { x: rects[0].left, y: rects[0].bottom };
let end = { x: rects[rects.length - 1].right, y: rects[rects.length - 1].bottom };
let selectionReversed = false;
if (this.cache.start) {
// If the end moved past the old end, but we're dragging the start handle, then that handle should become the end handle (and vice versa)
selectionReversed = (aIsStartHandle && (end.y > this.cache.end.y || (end.y == this.cache.end.y && end.x > this.cache.end.x))) ||
(!aIsStartHandle && (start.y < this.cache.start.y || (start.y == this.cache.start.y && start.x < this.cache.start.x)));
}
this.cache.start = start;
this.cache.end = end;
return selectionReversed;
},
positionHandles: function sh_positionHandles() {
// Translate coordinates to account for selections in sub-frames. We can't cache
// this because the top-level page may have scrolled since selection started.
let offset = this._getViewOffset();
let scrollX = {}, scrollY = {};
this._view.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).getScrollXY(false, scrollX, scrollY);
sendMessageToJava({
gecko: {
type: "TextSelection:PositionHandles",
startLeft: this.cache.start.x + offset.x + scrollX.value,
startTop: this.cache.start.y + offset.y + scrollY.value,
endLeft: this.cache.end.x + offset.x + scrollX.value,
endTop: this.cache.end.y + offset.y + scrollY.value
}
});
},
showHandles: function sh_showHandles() {
this.positionHandles();
sendMessageToJava({
gecko: {
type: "TextSelection:ShowHandles"
}
});
},
hideHandles: function sh_hideHandles() {
sendMessageToJava({
gecko: {
type: "TextSelection:HideHandles"
}
});
}
};
var UserAgent = {
DESKTOP_UA: null,
init: function ua_init() {
Services.obs.addObserver(this, "DesktopMode:Change", false);
Services.obs.addObserver(this, "http-on-modify-request", false);
// See https://developer.mozilla.org/en/Gecko_user_agent_string_reference
this.DESKTOP_UA = Cc["@mozilla.org/network/protocol;1?name=http"]
.getService(Ci.nsIHttpProtocolHandler).userAgent
.replace(/Android; [a-zA-Z]+/, "X11; Linux x86_64")
.replace(/Gecko\/[0-9\.]+/, "Gecko/20100101");
},
uninit: function ua_uninit() {
Services.obs.removeObserver(this, "DesktopMode:Change");
Services.obs.removeObserver(this, "http-on-modify-request");
},
_getRequestLoadContext: function ua_getRequestLoadContext(aRequest) {
if (aRequest && aRequest.notificationCallbacks) {
try {
return aRequest.notificationCallbacks.getInterface(Ci.nsILoadContext);
} catch (ex) { }
}
if (aRequest && aRequest.loadGroup && aRequest.loadGroup.notificationCallbacks) {
try {
return aRequest.loadGroup.notificationCallbacks.getInterface(Ci.nsILoadContext);
} catch (ex) { }
}
return null;
},
_getWindowForRequest: function ua_getWindowForRequest(aRequest) {
let loadContext = this._getRequestLoadContext(aRequest);
if (loadContext)
return loadContext.associatedWindow;
return null;
},
observe: function ua_observe(aSubject, aTopic, aData) {
switch (aTopic) {
case "DesktopMode:Change": {
let args = JSON.parse(aData);
let tab = BrowserApp.getTabForId(args.tabId);
if (tab != null)
tab.reloadWithMode(args.desktopMode);
break;
}
case "http-on-modify-request": {
let channel = aSubject.QueryInterface(Ci.nsIHttpChannel);
let channelWindow = this._getWindowForRequest(channel);
let tab = BrowserApp.getTabForWindow(channelWindow);
if (tab == null)
break;
// Send desktop UA if "Request Desktop Site" is enabled
if (tab.desktopMode)
channel.setRequestHeader("User-Agent", this.DESKTOP_UA, false);
break;
}
}
}
};
function nsBrowserAccess() {
}
nsBrowserAccess.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIBrowserDOMWindow]),
_getBrowser: function _getBrowser(aURI, aOpener, aWhere, aContext) {
let isExternal = (aContext == Ci.nsIBrowserDOMWindow.OPEN_EXTERNAL);
if (isExternal && aURI && aURI.schemeIs("chrome"))
return null;
let loadflags = isExternal ?
Ci.nsIWebNavigation.LOAD_FLAGS_FROM_EXTERNAL :
Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
if (aWhere == Ci.nsIBrowserDOMWindow.OPEN_DEFAULTWINDOW) {
switch (aContext) {
case Ci.nsIBrowserDOMWindow.OPEN_EXTERNAL:
aWhere = Services.prefs.getIntPref("browser.link.open_external");
break;
default: // OPEN_NEW or an illegal value
aWhere = Services.prefs.getIntPref("browser.link.open_newwindow");
}
}
Services.io.offline = false;
let referrer;
if (aOpener) {
try {
let location = aOpener.location;
referrer = Services.io.newURI(location, null, null);
} catch(e) { }
}
let ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
let pinned = false;
if (aURI && aWhere == Ci.nsIBrowserDOMWindow.OPEN_SWITCHTAB) {
pinned = true;
let spec = aURI.spec;
let tabs = BrowserApp.tabs;
for (let i = 0; i < tabs.length; i++) {
let appOrigin = ss.getTabValue(tabs[i], "appOrigin");
if (appOrigin == spec) {
let tab = tabs[i];
BrowserApp.selectTab(tab);
return tab.browser;
}
}
}
let newTab = (aWhere == Ci.nsIBrowserDOMWindow.OPEN_NEWWINDOW ||
aWhere == Ci.nsIBrowserDOMWindow.OPEN_NEWTAB ||
aWhere == Ci.nsIBrowserDOMWindow.OPEN_SWITCHTAB);
if (newTab) {
let parentId = -1;
if (!isExternal && aOpener) {
let parent = BrowserApp.getTabForWindow(aOpener.top);
if (parent)
parentId = parent.id;
}
// BrowserApp.addTab calls loadURIWithFlags with the appropriate params
let tab = BrowserApp.addTab(aURI ? aURI.spec : "about:blank", { flags: loadflags,
referrerURI: referrer,
external: isExternal,
parentId: parentId,
selected: true,
pinned: pinned });
return tab.browser;
}
// OPEN_CURRENTWINDOW and illegal values
let browser = BrowserApp.selectedBrowser;
if (aURI && browser)
browser.loadURIWithFlags(aURI.spec, loadflags, referrer, null, null);
return browser;
},
openURI: function browser_openURI(aURI, aOpener, aWhere, aContext) {
let browser = this._getBrowser(aURI, aOpener, aWhere, aContext);
return browser ? browser.contentWindow : null;
},
openURIInFrame: function browser_openURIInFrame(aURI, aOpener, aWhere, aContext) {
let browser = this._getBrowser(aURI, aOpener, aWhere, aContext);
return browser ? browser.QueryInterface(Ci.nsIFrameLoaderOwner) : null;
},
isTabContentWindow: function(aWindow) {
return BrowserApp.getBrowserForWindow(aWindow) != null;
}
};
let gTabIDFactory = 0;
// track the last known screen size so that new tabs
// get created with the right size rather than being 1x1
let gScreenWidth = 1;
let gScreenHeight = 1;
function Tab(aURL, aParams) {
this.browser = null;
this.id = 0;
this.showProgress = true;
this._zoom = 1.0;
this._drawZoom = 1.0;
this.userScrollPos = { x: 0, y: 0 };
this.contentDocumentIsDisplayed = true;
this.pluginDoorhangerTimeout = null;
this.shouldShowPluginDoorhanger = true;
this.clickToPlayPluginsActivated = false;
this.desktopMode = false;
this.originalURI = null;
this.create(aURL, aParams);
}
Tab.prototype = {
create: function(aURL, aParams) {
if (this.browser)
return;
aParams = aParams || {};
this.browser = document.createElement("browser");
this.browser.setAttribute("type", "content-targetable");
this.setBrowserSize(kDefaultCSSViewportWidth, kDefaultCSSViewportHeight);
BrowserApp.deck.appendChild(this.browser);
// Must be called after appendChild so the docshell has been created.
this.setActive(false);
this.browser.stop();
let frameLoader = this.browser.QueryInterface(Ci.nsIFrameLoaderOwner).frameLoader;
frameLoader.renderMode = Ci.nsIFrameLoader.RENDER_MODE_ASYNC_SCROLL;
// only set tab uri if uri is valid
let uri = null;
try {
uri = Services.io.newURI(aURL, null, null).spec;
} catch (e) {}
this.id = ++gTabIDFactory;
this.desktopMode = ("desktopMode" in aParams) ? aParams.desktopMode : false;
let message = {
gecko: {
type: "Tab:Added",
tabID: this.id,
uri: uri,
parentId: ("parentId" in aParams) ? aParams.parentId : -1,
external: ("external" in aParams) ? aParams.external : false,
selected: ("selected" in aParams) ? aParams.selected : true,
title: aParams.title || aURL,
delayLoad: aParams.delayLoad || false,
desktopMode: this.desktopMode
}
};
sendMessageToJava(message);
this.overscrollController = new OverscrollController(this);
this.browser.contentWindow.controllers.insertControllerAt(0, this.overscrollController);
let flags = Ci.nsIWebProgress.NOTIFY_STATE_ALL |
Ci.nsIWebProgress.NOTIFY_LOCATION |
Ci.nsIWebProgress.NOTIFY_SECURITY;
this.browser.addProgressListener(this, flags);
this.browser.sessionHistory.addSHistoryListener(this);
this.browser.addEventListener("DOMContentLoaded", this, true);
this.browser.addEventListener("DOMLinkAdded", this, true);
this.browser.addEventListener("DOMTitleChanged", this, true);
this.browser.addEventListener("DOMWindowClose", this, true);
this.browser.addEventListener("DOMWillOpenModalDialog", this, true);
this.browser.addEventListener("scroll", this, true);
this.browser.addEventListener("MozScrolledAreaChanged", this, true);
this.browser.addEventListener("PluginClickToPlay", this, true);
this.browser.addEventListener("PluginNotFound", this, true);
this.browser.addEventListener("pageshow", this, true);
Services.obs.addObserver(this, "before-first-paint", false);
Services.prefs.addObserver("browser.ui.zoom.force-user-scalable", this, false);
if (!aParams.delayLoad) {
let flags = "flags" in aParams ? aParams.flags : Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
let postData = ("postData" in aParams && aParams.postData) ? aParams.postData.value : null;
let referrerURI = "referrerURI" in aParams ? aParams.referrerURI : null;
let charset = "charset" in aParams ? aParams.charset : null;
// This determines whether or not we show the progress throbber in the urlbar
this.showProgress = "showProgress" in aParams ? aParams.showProgress : true;
try {
this.browser.loadURIWithFlags(aURL, flags, referrerURI, charset, postData);
} catch(e) {
let message = {
gecko: {
type: "Content:LoadError",
tabID: this.id,
uri: this.browser.currentURI.spec,
title: this.browser.contentTitle
}
};
sendMessageToJava(message);
dump("Handled load error: " + e)
}
}
},
/**
* Reloads the tab with the desktop mode setting.
*/
reloadWithMode: function (aDesktopMode) {
// Set desktop mode for tab and send change to Java
if (this.desktopMode != aDesktopMode) {
this.desktopMode = aDesktopMode;
sendMessageToJava({
gecko: {
type: "DesktopMode:Changed",
desktopMode: aDesktopMode,
tabId: this.id
}
});
}
// Only reload the page for http/https schemes
let currentURI = this.browser.currentURI;
if (!currentURI.schemeIs("http") && !currentURI.schemeIs("https"))
return;
let url = currentURI.spec;
let flags = Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE;
if (this.originalURI && !this.originalURI.equals(currentURI)) {
// We were redirected; reload the original URL
url = this.originalURI.spec;
flags |= Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
} else {
// Many sites use mobile-specific URLs, such as:
// http://m.yahoo.com
// http://www.google.com/m
// If the user clicks "Request Desktop Site" while on a mobile site, it
// will appear to do nothing since the mobile URL is still being
// requested. To address this, we do the following:
// 1) Remove the path from the URL (http://www.google.com/m?q=query -> http://www.google.com)
// 2) If a host subdomain is "m", remove it (http://en.m.wikipedia.org -> http://en.wikipedia.org)
// This means the user is sent to site's home page, but this is better
// than the setting having no effect at all.
if (aDesktopMode)
url = currentURI.prePath.replace(/([\/\.])m\./g, "$1");
else
flags |= Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
}
this.browser.docShell.loadURI(url, flags, null, null, null);
},
destroy: function() {
if (!this.browser)
return;
this.browser.contentWindow.controllers.removeController(this.overscrollController);
this.browser.removeProgressListener(this);
this.browser.removeEventListener("DOMContentLoaded", this, true);
this.browser.removeEventListener("DOMLinkAdded", this, true);
this.browser.removeEventListener("DOMTitleChanged", this, true);
this.browser.removeEventListener("DOMWindowClose", this, true);
this.browser.removeEventListener("DOMWillOpenModalDialog", this, true);
this.browser.removeEventListener("scroll", this, true);
this.browser.removeEventListener("PluginClickToPlay", this, true);
this.browser.removeEventListener("PluginNotFound", this, true);
this.browser.removeEventListener("MozScrolledAreaChanged", this, true);
Services.obs.removeObserver(this, "before-first-paint");
Services.prefs.removeObserver("browser.ui.zoom.force-user-scalable", this);
// Make sure the previously selected panel remains selected. The selected panel of a deck is
// not stable when panels are removed.
let selectedPanel = BrowserApp.deck.selectedPanel;
BrowserApp.deck.removeChild(this.browser);
BrowserApp.deck.selectedPanel = selectedPanel;
this.browser = null;
},
// This should be called to update the browser when the tab gets selected/unselected
setActive: function setActive(aActive) {
if (!this.browser || !this.browser.docShell)
return;
if (aActive) {
this.browser.setAttribute("type", "content-primary");
this.browser.focus();
this.browser.docShellIsActive = true;
} else {
this.browser.setAttribute("type", "content-targetable");
this.browser.docShellIsActive = false;
}
},
getActive: function getActive() {
return this.browser.docShellIsActive;
},
setDisplayPort: function(aDisplayPort) {
let zoom = this._zoom;
let resolution = aDisplayPort.resolution;
if (zoom <= 0 || resolution <= 0)
return;
// "zoom" is the user-visible zoom of the "this" tab
// "resolution" is the zoom at which we wish gecko to render "this" tab at
// these two may be different if we are, for example, trying to render a
// large area of the page at low resolution because the user is panning real
// fast.
// The gecko scroll position is in CSS pixels. The display port rect
// values (aDisplayPort), however, are in CSS pixels multiplied by the desired
// rendering resolution. Therefore care must be taken when doing math with
// these sets of values, to ensure that they are normalized to the same coordinate
// space first.
let element = this.browser.contentDocument.documentElement;
if (!element)
return;
// we should never be drawing background tabs at resolutions other than the user-
// visible zoom. for foreground tabs, however, if we are drawing at some other
// resolution, we need to set the resolution as specified.
let cwu = window.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
if (BrowserApp.selectedTab == this) {
if (resolution != this._drawZoom) {
this._drawZoom = resolution;
cwu.setResolution(resolution, resolution);
}
} else if (resolution != zoom) {
dump("Warning: setDisplayPort resolution did not match zoom for background tab!");
}
// Finally, we set the display port, taking care to convert everything into the CSS-pixel
// coordinate space, because that is what the function accepts. Also we have to fudge the
// displayport somewhat to make sure it gets through all the conversions gecko will do on it
// without deforming too much. See https://bugzilla.mozilla.org/show_bug.cgi?id=737510#c10
// for details on what these operations are.
let geckoScrollX = this.browser.contentWindow.scrollX;
let geckoScrollY = this.browser.contentWindow.scrollY;
aDisplayPort = this._dirtiestHackEverToWorkAroundGeckoRounding(aDisplayPort, geckoScrollX, geckoScrollY);
cwu = this.browser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
cwu.setDisplayPortForElement((aDisplayPort.left / resolution) - geckoScrollX,
(aDisplayPort.top / resolution) - geckoScrollY,
(aDisplayPort.right - aDisplayPort.left) / resolution,
(aDisplayPort.bottom - aDisplayPort.top) / resolution,
element);
},
/*
* Yes, this is ugly. But it's currently the safest way to account for the rounding errors that occur
* when we pump the displayport coordinates through gecko and they pop out in the compositor.
*
* In general, the values are converted from page-relative device pixels to viewport-relative app units,
* and then back to page-relative device pixels (now as ints). The first half of this is only slightly
* lossy, but it's enough to throw off the numbers a little. Because of this, when gecko calls
* ScaleToOutsidePixels to generate the final rect, the rect may get expanded more than it should,
* ending up a pixel larger than it started off. This is undesirable in general, but specifically
* bad for tiling, because it means we means we end up painting one line of pixels from a tile,
* causing an otherwise unnecessary upload of the whole tile.
*
* In order to counteract the rounding error, this code simulates the conversions that will happen
* to the display port, and calculates whether or not that final ScaleToOutsidePixels is actually
* expanding the rect more than it should. If so, it determines how much rounding error was introduced
* up until that point, and adjusts the original values to compensate for that rounding error.
*/
_dirtiestHackEverToWorkAroundGeckoRounding: function(aDisplayPort, aGeckoScrollX, aGeckoScrollY) {
const APP_UNITS_PER_CSS_PIXEL = 60.0;
const EXTRA_FUDGE = 0.04;
let resolution = aDisplayPort.resolution;
// Some helper functions that simulate conversion processes in gecko
function cssPixelsToAppUnits(aVal) {
return Math.floor((aVal * APP_UNITS_PER_CSS_PIXEL) + 0.5);
}
function appUnitsToDevicePixels(aVal) {
return aVal / APP_UNITS_PER_CSS_PIXEL * resolution;
}
function devicePixelsToAppUnits(aVal) {
return cssPixelsToAppUnits(aVal / resolution);
}
// Stash our original (desired) displayport width and height away, we need it
// later and we might modify the displayport in between.
let originalWidth = aDisplayPort.right - aDisplayPort.left;
let originalHeight = aDisplayPort.bottom - aDisplayPort.top;
// This is the first conversion the displayport goes through, going from page-relative
// device pixels to viewport-relative app units.
let appUnitDisplayPort = {
x: cssPixelsToAppUnits((aDisplayPort.left / resolution) - aGeckoScrollX),
y: cssPixelsToAppUnits((aDisplayPort.top / resolution) - aGeckoScrollY),
w: cssPixelsToAppUnits((aDisplayPort.right - aDisplayPort.left) / resolution),
h: cssPixelsToAppUnits((aDisplayPort.bottom - aDisplayPort.top) / resolution)
};
// This is the translation gecko applies when converting back from viewport-relative
// device pixels to page-relative device pixels.
let geckoTransformX = -Math.floor((-aGeckoScrollX * resolution) + 0.5);
let geckoTransformY = -Math.floor((-aGeckoScrollY * resolution) + 0.5);
// The final "left" value as calculated in gecko is:
// left = geckoTransformX + Math.floor(appUnitsToDevicePixels(appUnitDisplayPort.x))
// In a perfect world, this value would be identical to aDisplayPort.left, which is what
// we started with. However, this may not be the case if the value being floored has accumulated
// enough error to drop below what it should be.
// For example, assume geckoTransformX is 0, and aDisplayPort.left is 4, but
// appUnitsToDevicePixels(appUnitsToDevicePixels.x) comes out as 3.9 because of rounding error.
// That's bad, because the -0.1 error has caused it to floor to 3 instead of 4. (If it had errored
// the other way and come out as 4.1, there's no problem). In this example, we need to increase the
// "left" value by some amount so that the 3.9 actually comes out as >= 4, and it gets floored into
// the expected value of 4. The delta values calculated below calculate that error amount (e.g. -0.1).
let errorLeft = (geckoTransformX + appUnitsToDevicePixels(appUnitDisplayPort.x)) - aDisplayPort.left;
let errorTop = (geckoTransformY + appUnitsToDevicePixels(appUnitDisplayPort.y)) - aDisplayPort.top;
// If the error was negative, that means it will floor incorrectly, so we need to bump up the
// original aDisplayPort.left and/or aDisplayPort.top values. The amount we bump it up by is
// the error amount (increased by a small fudge factor to ensure it's sufficient), converted
// backwards through the conversion process.
if (errorLeft < 0) {
aDisplayPort.left += appUnitsToDevicePixels(devicePixelsToAppUnits(EXTRA_FUDGE - errorLeft));
// After we modify the left value, we need to re-simulate some values to take that into account
appUnitDisplayPort.x = cssPixelsToAppUnits((aDisplayPort.left / resolution) - aGeckoScrollX);
appUnitDisplayPort.w = cssPixelsToAppUnits((aDisplayPort.right - aDisplayPort.left) / resolution);
}
if (errorTop < 0) {
aDisplayPort.top += appUnitsToDevicePixels(devicePixelsToAppUnits(EXTRA_FUDGE - errorTop));
// After we modify the top value, we need to re-simulate some values to take that into account
appUnitDisplayPort.y = cssPixelsToAppUnits((aDisplayPort.top / resolution) - aGeckoScrollY);
appUnitDisplayPort.h = cssPixelsToAppUnits((aDisplayPort.bottom - aDisplayPort.top) / resolution);
}
// At this point, the aDisplayPort.left and aDisplayPort.top values have been corrected to account
// for the error in conversion such that they end up where we want them. Now we need to also do the
// same for the right/bottom values so that the width/height end up where we want them.
// This is the final conversion that the displayport goes through before gecko spits it back to
// us. Note that the width/height calculates are of the form "ceil(transform(right)) - floor(transform(left))"
let scaledOutDevicePixels = {
x: Math.floor(appUnitsToDevicePixels(appUnitDisplayPort.x)),
y: Math.floor(appUnitsToDevicePixels(appUnitDisplayPort.y)),
w: Math.ceil(appUnitsToDevicePixels(appUnitDisplayPort.x + appUnitDisplayPort.w)) - Math.floor(appUnitsToDevicePixels(appUnitDisplayPort.x)),
h: Math.ceil(appUnitsToDevicePixels(appUnitDisplayPort.y + appUnitDisplayPort.h)) - Math.floor(appUnitsToDevicePixels(appUnitDisplayPort.y))
};
// The final "width" value as calculated in gecko is scaledOutDevicePixels.w.
// In a perfect world, this would equal originalWidth. However, things are not perfect, and as before,
// we need to calculate how much rounding error has been introduced. In this case the rounding error is causing
// the Math.ceil call above to ceiling to the wrong final value. For example, 4 gets converted 4.1 and gets
// ceiling'd to 5; in this case the error is 0.1.
let errorRight = (appUnitsToDevicePixels(appUnitDisplayPort.x + appUnitDisplayPort.w) - scaledOutDevicePixels.x) - originalWidth;
let errorBottom = (appUnitsToDevicePixels(appUnitDisplayPort.y + appUnitDisplayPort.h) - scaledOutDevicePixels.y) - originalHeight;
// If the error was positive, that means it will ceiling incorrectly, so we need to bump down the
// original aDisplayPort.right and/or aDisplayPort.bottom. Again, we back-convert the error amount
// with a small fudge factor to figure out how much to adjust the original values.
if (errorRight > 0) aDisplayPort.right -= appUnitsToDevicePixels(devicePixelsToAppUnits(errorRight + EXTRA_FUDGE));
if (errorBottom > 0) aDisplayPort.bottom -= appUnitsToDevicePixels(devicePixelsToAppUnits(errorBottom + EXTRA_FUDGE));
// Et voila!
return aDisplayPort;
},
setViewport: function(aViewport) {
// Transform coordinates based on zoom
let x = aViewport.x / aViewport.zoom;
let y = aViewport.y / aViewport.zoom;
// Set scroll position and scroll-port clamping size
let viewportWidth = gScreenWidth / aViewport.zoom;
let viewportHeight = gScreenHeight / aViewport.zoom;
let [pageWidth, pageHeight] = this.getPageSize(this.browser.contentDocument,
viewportWidth, viewportHeight);
let scrollPortWidth = Math.min(viewportWidth, pageWidth);
let scrollPortHeight = Math.min(viewportHeight, pageHeight);
let win = this.browser.contentWindow;
win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).
setScrollPositionClampingScrollPortSize(scrollPortWidth, scrollPortHeight);
win.scrollTo(x, y);
this.userScrollPos.x = win.scrollX;
this.userScrollPos.y = win.scrollY;
this.setResolution(aViewport.zoom, false);
if (aViewport.displayPort)
this.setDisplayPort(aViewport.displayPort);
Services.obs.notifyObservers(null, "after-viewport-change", "");
},
setResolution: function(aZoom, aForce) {
// Set zoom level
if (aForce || Math.abs(aZoom - this._zoom) >= 1e-6) {
this._zoom = aZoom;
if (BrowserApp.selectedTab == this) {
let cwu = window.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
this._drawZoom = aZoom;
cwu.setResolution(aZoom, aZoom);
}
}
},
getPageSize: function(aDocument, aDefaultWidth, aDefaultHeight) {
let body = aDocument.body || { scrollWidth: aDefaultWidth, scrollHeight: aDefaultHeight };
let html = aDocument.documentElement || { scrollWidth: aDefaultWidth, scrollHeight: aDefaultHeight };
return [Math.max(body.scrollWidth, html.scrollWidth),
Math.max(body.scrollHeight, html.scrollHeight)];
},
getViewport: function() {
let viewport = {
width: gScreenWidth,
height: gScreenHeight,
cssWidth: gScreenWidth / this._zoom,
cssHeight: gScreenHeight / this._zoom,
pageLeft: 0,
pageTop: 0,
pageRight: gScreenWidth,
pageBottom: gScreenHeight,
// We make up matching css page dimensions
cssPageLeft: 0,
cssPageTop: 0,
cssPageRight: gScreenWidth / this._zoom,
cssPageBottom: gScreenHeight / this._zoom,
zoom: this._zoom,
};
// Set the viewport offset to current scroll offset
viewport.cssX = this.browser.contentWindow.scrollX || 0;
viewport.cssY = this.browser.contentWindow.scrollY || 0;
// Transform coordinates based on zoom
viewport.x = Math.round(viewport.cssX * viewport.zoom);
viewport.y = Math.round(viewport.cssY * viewport.zoom);
let doc = this.browser.contentDocument;
if (doc != null) {
let cwu = this.browser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
let cssPageRect = cwu.getRootBounds();
/*
* Avoid sending page sizes of less than screen size before we hit DOMContentLoaded, because
* this causes the page size to jump around wildly during page load. After the page is loaded,
* send updates regardless of page size; we'll zoom to fit the content as needed.
*
* In the check below, we floor the viewport size because there might be slight rounding errors
* introduced in the CSS page size due to the conversion to and from app units in Gecko. The
* error should be no more than one app unit so doing the floor is overkill, but safe in the
* sense that the extra page size updates that get sent as a result will be mostly harmless.
*/
let pageLargerThanScreen = (cssPageRect.width >= Math.floor(viewport.cssWidth))
&& (cssPageRect.height >= Math.floor(viewport.cssHeight));
if (doc.readyState === 'complete' || pageLargerThanScreen) {
viewport.cssPageLeft = cssPageRect.left;
viewport.cssPageTop = cssPageRect.top;
viewport.cssPageRight = cssPageRect.right;
viewport.cssPageBottom = cssPageRect.bottom;
/* Transform the page width and height based on the zoom factor. */
viewport.pageLeft = (viewport.cssPageLeft * viewport.zoom);
viewport.pageTop = (viewport.cssPageTop * viewport.zoom);
viewport.pageRight = (viewport.cssPageRight * viewport.zoom);
viewport.pageBottom = (viewport.cssPageBottom * viewport.zoom);
}
}
return viewport;
},
sendViewportUpdate: function(aPageSizeUpdate) {
let message;
// for foreground tabs, send the viewport update unless the document
// displayed is different from the content document. In that case, just
// calculate the display port.
if (BrowserApp.selectedTab == this && BrowserApp.isBrowserContentDocumentDisplayed()) {
message = this.getViewport();
message.type = aPageSizeUpdate ? "Viewport:PageSize" : "Viewport:Update";
} else {
// for background tabs, request a new display port calculation, so that
// when we do switch to that tab, we have the correct display port and
// don't need to draw twice (once to allow the first-paint viewport to
// get to java, and again once java figures out the display port).
message = this.getViewport();
message.type = "Viewport:CalculateDisplayPort";
}
let displayPort = sendMessageToJava({ gecko: message });
if (displayPort != null)
this.setDisplayPort(JSON.parse(displayPort));
},
handleEvent: function(aEvent) {
switch (aEvent.type) {
case "DOMContentLoaded": {
let target = aEvent.originalTarget;
// ignore on frames and other documents
if (target != this.browser.contentDocument)
return;
// Sample the background color of the page and pass it along. (This is used to draw the
// checkerboard.) Right now we don't detect changes in the background color after this
// event fires; it's not clear that doing so is worth the effort.
var backgroundColor = null;
try {
let browser = BrowserApp.selectedBrowser;
if (browser) {
let { contentDocument, contentWindow } = browser;
let computedStyle = contentWindow.getComputedStyle(contentDocument.body);
backgroundColor = computedStyle.backgroundColor;
}
} catch (e) {
// Ignore. Catching and ignoring exceptions here ensures that Talos succeeds.
}
sendMessageToJava({
gecko: {
type: "DOMContentLoaded",
tabID: this.id,
bgColor: backgroundColor
}
});
// Attach a listener to watch for "click" events bubbling up from error
// pages and other similar page. This lets us fix bugs like 401575 which
// require error page UI to do privileged things, without letting error
// pages have any privilege themselves.
if (/^about:/.test(target.documentURI)) {
this.browser.addEventListener("click", ErrorPageEventHandler, false);
this.browser.addEventListener("pagehide", function listener() {
this.browser.removeEventListener("click", ErrorPageEventHandler, false);
this.browser.removeEventListener("pagehide", listener, true);
}.bind(this), true);
}
break;
}
case "DOMLinkAdded": {
let target = aEvent.originalTarget;
if (!target.href || target.disabled)
return;
// ignore on frames and other documents
if (target.ownerDocument != this.browser.contentDocument)
return;
// sanitize the rel string
let list = [];
if (target.rel) {
list = target.rel.toLowerCase().split(/\s+/);
let hash = {};
list.forEach(function(value) { hash[value] = true; });
list = [];
for (let rel in hash)
list.push("[" + rel + "]");
}
// We want to get the largest icon size possible for our UI.
let maxSize = 0;
// We use the sizes attribute if available
// see http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon
if (target.hasAttribute("sizes")) {
let sizes = target.getAttribute("sizes").toLowerCase();
if (sizes == "any") {
// Since Java expects an integer, use -1 to represent icons with sizes="any"
maxSize = -1;
} else {
let tokens = sizes.split(" ");
tokens.forEach(function(token) {
// TODO: check for invalid tokens
let [w, h] = token.split("x");
maxSize = Math.max(maxSize, Math.max(w, h));
});
}
}
let json = {
type: "DOMLinkAdded",
tabID: this.id,
href: resolveGeckoURI(target.href),
charset: target.ownerDocument.characterSet,
title: target.title,
rel: list.join(" "),
size: maxSize
};
sendMessageToJava({ gecko: json });
break;
}
case "DOMTitleChanged": {
if (!aEvent.isTrusted)
return;
// ignore on frames and other documents
if (aEvent.originalTarget != this.browser.contentDocument)
return;
sendMessageToJava({
gecko: {
type: "DOMTitleChanged",
tabID: this.id,
title: aEvent.target.title.substring(0, 255)
}
});
break;
}
case "DOMWindowClose": {
if (!aEvent.isTrusted)
return;
// Find the relevant tab, and close it from Java
if (this.browser.contentWindow == aEvent.target) {
aEvent.preventDefault();
sendMessageToJava({
gecko: {
type: "DOMWindowClose",
tabID: this.id
}
});
}
break;
}
case "DOMWillOpenModalDialog": {
if (!aEvent.isTrusted)
return;
// We're about to open a modal dialog, make sure the opening
// tab is brought to the front.
let tab = BrowserApp.getTabForWindow(aEvent.target.top);
BrowserApp.selectTab(tab);
break;
}
case "scroll": {
let win = this.browser.contentWindow;
if (this.userScrollPos.x != win.scrollX || this.userScrollPos.y != win.scrollY) {
this.sendViewportUpdate();
}
break;
}
case "MozScrolledAreaChanged": {
// This event is only fired for root scroll frames, and only when the
// scrolled area has actually changed, so no need to check for that.
// Just make sure it's the event for the correct root scroll frame.
if (aEvent.originalTarget != this.browser.contentDocument)
return;
this.sendViewportUpdate(true);
break;
}
case "PluginClickToPlay": {
let plugin = aEvent.target;
// Check if plugins have already been activated for this page, or if the user
// has set a permission to always play plugins on the site
if (this.clickToPlayPluginsActivated ||
Services.perms.testPermission(this.browser.currentURI, "plugins") == Services.perms.ALLOW_ACTION) {
PluginHelper.playPlugin(plugin);
return;
}
// Force a style flush, so that we ensure our binding is attached.
plugin.clientTop;
// If the plugin is hidden, or if the overlay is too small, show a doorhanger notification
let overlay = plugin.ownerDocument.getAnonymousElementByAttribute(plugin, "class", "mainBox");
if (!overlay || PluginHelper.isTooSmall(plugin, overlay)) {
// To avoid showing the doorhanger if there are also visible plugin overlays on the page,
// delay showing the doorhanger to check if visible plugins get added in the near future.
if (!this.pluginDoorhangerTimeout) {
this.pluginDoorhangerTimeout = setTimeout(function() {
if (this.shouldShowPluginDoorhanger)
PluginHelper.showDoorHanger(this);
}.bind(this), 500);
}
// No overlay? We're done here.
if (!overlay)
return;
} else {
// There's a large enough visible overlay that we don't need to show the doorhanger.
this.shouldShowPluginDoorhanger = false;
}
// Add click to play listener to the overlay
overlay.addEventListener("click", function(e) {
if (e) {
if (!e.isTrusted)
return;
e.preventDefault();
}
let win = e.target.ownerDocument.defaultView.top;
let tab = BrowserApp.getTabForWindow(win);
tab.clickToPlayPluginsActivated = true;
PluginHelper.playAllPlugins(win);
NativeWindow.doorhanger.hide("ask-to-play-plugins", tab.id);
}, true);
break;
}
case "PluginNotFound": {
let plugin = aEvent.target;
plugin.clientTop; // force style flush
// On devices where we don't support Flash, there will be a "Learn More..." link in
// the missing plugin error message.
let learnMoreLink = plugin.ownerDocument.getAnonymousElementByAttribute(plugin, "class", "unsupportedLearnMoreLink");
if (learnMoreLink) {
let learnMoreUrl = Services.urlFormatter.formatURLPref("app.support.baseURL");
learnMoreUrl += "why-cant-firefox-mobile-play-flash-on-my-device";
learnMoreLink.href = learnMoreUrl;
}
break;
}
case "pageshow": {
// only send pageshow for the top-level document
if (aEvent.originalTarget.defaultView != this.browser.contentWindow)
return;
sendMessageToJava({
gecko: {
type: "Content:PageShow",
tabID: this.id
}
});
// Once document is fully loaded, parse it
Reader.parseDocumentFromTab(this.id, function (article) {
if (article == null)
return;
sendMessageToJava({
gecko: {
type: "Content:ReaderEnabled",
tabID: this.id
}
});
}.bind(this));
}
}
},
onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {
let contentWin = aWebProgress.DOMWindow;
if (contentWin != contentWin.top)
return;
// Filter optimization: Only really send NETWORK state changes to Java listener
if (aStateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK) {
if ((aStateFlags & Ci.nsIWebProgressListener.STATE_STOP) && aWebProgress.isLoadingDocument) {
// We may receive a document stop event while a document is still loading
// (such as when doing URI fixup). Don't notify Java UI in these cases.
return;
}
// Check to see if we restoring the content from a previous presentation (session)
// since there should be no real network activity
let restoring = aStateFlags & Ci.nsIWebProgressListener.STATE_RESTORING;
let showProgress = restoring ? false : this.showProgress;
// true if the page loaded successfully (i.e., no 404s or other errors)
let success = false;
let uri = "";
try {
// Remember original URI for UA changes on redirected pages
this.originalURI = aRequest.QueryInterface(Components.interfaces.nsIChannel).originalURI;
if (this.originalURI != null)
uri = this.originalURI.spec;
} catch (e) { }
try {
success = aRequest.QueryInterface(Components.interfaces.nsIHttpChannel).requestSucceeded;
} catch (e) { }
let message = {
gecko: {
type: "Content:StateChange",
tabID: this.id,
uri: uri,
state: aStateFlags,
showProgress: showProgress,
success: success
}
};
sendMessageToJava(message);
// Reset showProgress after state change
this.showProgress = true;
}
},
onLocationChange: function(aWebProgress, aRequest, aLocationURI, aFlags) {
let contentWin = aWebProgress.DOMWindow;
if (contentWin != contentWin.top)
return;
this._hostChanged = true;
let fixedURI = aLocationURI;
try {
fixedURI = URIFixup.createExposableURI(aLocationURI);
} catch (ex) { }
let documentURI = contentWin.document.documentURIObject.spec;
let contentType = contentWin.document.contentType;
// If fixedURI matches browser.lastURI, we assume this isn't a real location
// change but rather a spurious addition like a wyciwyg URI prefix. See Bug 747883.
// Note that we have to ensure fixedURI is not the same as aLocationURI so we
// don't false-positive page reloads as spurious additions.
let sameDocument = (aFlags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT) != 0 ||
((this.browser.lastURI != null) && fixedURI.equals(this.browser.lastURI) && !fixedURI.equals(aLocationURI));
this.browser.lastURI = fixedURI;
// Reset state of click-to-play plugin notifications.
clearTimeout(this.pluginDoorhangerTimeout);
this.pluginDoorhangerTimeout = null;
this.shouldShowPluginDoorhanger = true;
this.clickToPlayPluginsActivated = false;
let message = {
gecko: {
type: "Content:LocationChange",
tabID: this.id,
uri: fixedURI.spec,
documentURI: documentURI,
contentType: contentType,
sameDocument: sameDocument
}
};
sendMessageToJava(message);
if (!sameDocument) {
// XXX This code assumes that this is the earliest hook we have at which
// browser.contentDocument is changed to the new document we're loading
this.contentDocumentIsDisplayed = false;
} else {
this.sendViewportUpdate();
}
},
// Properties used to cache security state used to update the UI
_state: null,
_hostChanged: false, // onLocationChange will flip this bit
onSecurityChange: function(aWebProgress, aRequest, aState) {
// Don't need to do anything if the data we use to update the UI hasn't changed
if (this._state == aState && !this._hostChanged)
return;
this._state = aState;
this._hostChanged = false;
let identity = IdentityHandler.checkIdentity(aState, this.browser);
let message = {
gecko: {
type: "Content:SecurityChange",
tabID: this.id,
identity: identity
}
};
sendMessageToJava(message);
},
onProgressChange: function(aWebProgress, aRequest, aCurSelfProgress, aMaxSelfProgress, aCurTotalProgress, aMaxTotalProgress) {
},
onStatusChange: function(aBrowser, aWebProgress, aRequest, aStatus, aMessage) {
},
_sendHistoryEvent: function(aMessage, aParams) {
let message = {
gecko: {
type: "SessionHistory:" + aMessage,
tabID: this.id,
}
};
if (aParams) {
if ("url" in aParams)
message.gecko.url = aParams.url;
if ("index" in aParams)
message.gecko.index = aParams.index;
if ("numEntries" in aParams)
message.gecko.numEntries = aParams.numEntries;
}
sendMessageToJava(message);
},
OnHistoryNewEntry: function(aUri) {
this._sendHistoryEvent("New", { url: aUri.spec });
},
OnHistoryGoBack: function(aUri) {
this._sendHistoryEvent("Back");
return true;
},
OnHistoryGoForward: function(aUri) {
this._sendHistoryEvent("Forward");
return true;
},
OnHistoryReload: function(aUri, aFlags) {
// we don't do anything with this, so don't propagate it
// for now anyway
return true;
},
OnHistoryGotoIndex: function(aIndex, aUri) {
this._sendHistoryEvent("Goto", { index: aIndex });
return true;
},
OnHistoryPurge: function(aNumEntries) {
this._sendHistoryEvent("Purge", { numEntries: aNumEntries });
return true;
},
get metadata() {
return ViewportHandler.getMetadataForDocument(this.browser.contentDocument);
},
/** Update viewport when the metadata changes. */
updateViewportMetadata: function updateViewportMetadata(aMetadata) {
if (Services.prefs.getBoolPref("browser.ui.zoom.force-user-scalable")) {
aMetadata.allowZoom = true;
aMetadata.minZoom = aMetadata.maxZoom = NaN;
}
if (aMetadata && aMetadata.autoScale) {
let scaleRatio = aMetadata.scaleRatio = ViewportHandler.getScaleRatio();
if ("defaultZoom" in aMetadata && aMetadata.defaultZoom > 0)
aMetadata.defaultZoom *= scaleRatio;
if ("minZoom" in aMetadata && aMetadata.minZoom > 0)
aMetadata.minZoom *= scaleRatio;
if ("maxZoom" in aMetadata && aMetadata.maxZoom > 0)
aMetadata.maxZoom *= scaleRatio;
}
ViewportHandler.setMetadataForDocument(this.browser.contentDocument, aMetadata);
this.updateViewportSize(gScreenWidth);
this.sendViewportMetadata();
},
/** Update viewport when the metadata or the window size changes. */
updateViewportSize: function updateViewportSize(aOldScreenWidth) {
// When this function gets called on window resize, we must execute
// this.sendViewportUpdate() so that refreshDisplayPort is called.
// Ensure that when making changes to this function that code path
// is not accidentally removed (the call to sendViewportUpdate() is
// at the very end).
let browser = this.browser;
if (!browser)
return;
let screenW = gScreenWidth;
let screenH = gScreenHeight;
let viewportW, viewportH;
let metadata = this.metadata;
if (metadata.autoSize) {
if ("scaleRatio" in metadata) {
viewportW = screenW / metadata.scaleRatio;
viewportH = screenH / metadata.scaleRatio;
} else {
viewportW = screenW;
viewportH = screenH;
}
} else {
viewportW = metadata.width;
viewportH = metadata.height;
// If (scale * width) < device-width, increase the width (bug 561413).
let maxInitialZoom = metadata.defaultZoom || metadata.maxZoom;
if (maxInitialZoom && viewportW)
viewportW = Math.max(viewportW, screenW / maxInitialZoom);
let validW = viewportW > 0;
let validH = viewportH > 0;
if (!validW)
viewportW = validH ? (viewportH * (screenW / screenH)) : BrowserApp.defaultBrowserWidth;
if (!validH)
viewportH = viewportW * (screenH / screenW);
}
// Make sure the viewport height is not shorter than the window when
// the page is zoomed out to show its full width. Note that before
// we set the viewport width, the "full width" of the page isn't properly
// defined, so that's why we have to call setBrowserSize twice - once
// to set the width, and the second time to figure out the height based
// on the layout at that width.
let oldBrowserWidth = this.browserWidth;
this.setBrowserSize(viewportW, viewportH);
// if this page has not been painted yet, then this must be getting run
// because a meta-viewport element was added (via the DOMMetaAdded handler).
// in this case, we should not do anything that forces a reflow (see bug 759678)
// such as requesting the page size or sending a viewport update. this code
// will get run again in the before-first-paint handler and that point we
// will run though all of it. the reason we even bother executing up to this
// point on the DOMMetaAdded handler is so that scripts that use window.innerWidth
// before they are painted have a correct value (bug 771575).
if (!this.contentDocumentIsDisplayed) {
return;
}
let minScale = 1.0;
if (this.browser.contentDocument) {
// this may get run during a Viewport:Change message while the document
// has not yet loaded, so need to guard against a null document.
let [pageWidth, pageHeight] = this.getPageSize(this.browser.contentDocument, viewportW, viewportH);
minScale = gScreenWidth / pageWidth;
}
minScale = this.clampZoom(minScale);
viewportH = Math.max(viewportH, screenH / minScale);
this.setBrowserSize(viewportW, viewportH);
// Avoid having the scroll position jump around after device rotation.
let win = this.browser.contentWindow;
this.userScrollPos.x = win.scrollX;
this.userScrollPos.y = win.scrollY;
// This change to the zoom accounts for all types of changes I can conceive:
// 1. screen size changes, CSS viewport does not (pages with no meta viewport
// or a fixed size viewport)
// 2. screen size changes, CSS viewport also does (pages with a device-width
// viewport)
// 3. screen size remains constant, but CSS viewport changes (meta viewport
// tag is added or removed)
// 4. neither screen size nor CSS viewport changes
//
// In all of these cases, we maintain how much actual content is visible
// within the screen width. Note that "actual content" may be different
// with respect to CSS pixels because of the CSS viewport size changing.
let zoomScale = (screenW * oldBrowserWidth) / (aOldScreenWidth * viewportW);
let zoom = this.clampZoom(this._zoom * zoomScale);
this.setResolution(zoom, false);
this.sendViewportUpdate();
},
sendViewportMetadata: function sendViewportMetadata() {
sendMessageToJava({ gecko: {
type: "Tab:ViewportMetadata",
allowZoom: this.metadata.allowZoom,
defaultZoom: this.metadata.defaultZoom || 0,
minZoom: this.metadata.minZoom || 0,
maxZoom: this.metadata.maxZoom || 0,
tabID: this.id
}});
},
setBrowserSize: function(aWidth, aHeight) {
this.browserWidth = aWidth;
if (!this.browser.contentWindow)
return;
let cwu = this.browser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
cwu.setCSSViewport(aWidth, aHeight);
},
/** Takes a scale and restricts it based on this tab's zoom limits. */
clampZoom: function clampZoom(aZoom) {
let zoom = ViewportHandler.clamp(aZoom, kViewportMinScale, kViewportMaxScale);
let md = this.metadata;
if (!md.allowZoom)
return md.defaultZoom || zoom;
if (md && md.minZoom)
zoom = Math.max(zoom, md.minZoom);
if (md && md.maxZoom)
zoom = Math.min(zoom, md.maxZoom);
return zoom;
},
observe: function(aSubject, aTopic, aData) {
switch (aTopic) {
case "before-first-paint":
// Is it on the top level?
let contentDocument = aSubject;
if (contentDocument == this.browser.contentDocument) {
BrowserApp.displayedDocumentChanged();
this.contentDocumentIsDisplayed = true;
// reset CSS viewport and zoom to default on new page, and then calculate
// them properly using the actual metadata from the page. note that the
// updateMetadata call takes into account the existing CSS viewport size
// and zoom when calculating the new ones, so we need to reset these
// things here before calling updateMetadata.
this.setBrowserSize(kDefaultCSSViewportWidth, kDefaultCSSViewportHeight);
this.setResolution(gScreenWidth / this.browserWidth, false);
ViewportHandler.updateMetadata(this);
// Note that if we draw without a display-port, things can go wrong. By the
// time we execute this, it's almost certain a display-port has been set via
// the MozScrolledAreaChanged event. If that didn't happen, the updateMetadata
// call above does so at the end of the updateViewportSize function. As long
// as that is happening, we don't need to do it again here.
if (contentDocument.mozSyntheticDocument) {
// for images, scale to fit width. this needs to happen *after* the call
// to updateMetadata above, because that call sets the CSS viewport which
// will affect the page size (i.e. contentDocument.body.scroll*) that we
// use in this calculation. also we call sendViewportUpdate after changing
// the resolution so that the display port gets recalculated appropriately.
let fitZoom = Math.min(gScreenWidth / contentDocument.body.scrollWidth,
gScreenHeight / contentDocument.body.scrollHeight);
this.setResolution(fitZoom, false);
this.sendViewportUpdate();
}
}
break;
case "nsPref:changed":
if (aData == "browser.ui.zoom.force-user-scalable")
ViewportHandler.updateMetadata(this);
break;
}
},
// nsIBrowserTab
get window() {
if (!this.browser)
return null;
return this.browser.contentWindow;
},
get scale() {
return this._zoom;
},
QueryInterface: XPCOMUtils.generateQI([
Ci.nsIWebProgressListener,
Ci.nsISHistoryListener,
Ci.nsIObserver,
Ci.nsISupportsWeakReference,
Ci.nsIBrowserTab
])
};
var BrowserEventHandler = {
init: function init() {
Services.obs.addObserver(this, "Gesture:SingleTap", false);
Services.obs.addObserver(this, "Gesture:CancelTouch", false);
Services.obs.addObserver(this, "Gesture:DoubleTap", false);
Services.obs.addObserver(this, "Gesture:Scroll", false);
Services.obs.addObserver(this, "dom-touch-listener-added", false);
BrowserApp.deck.addEventListener("DOMUpdatePageReport", PopupBlockerObserver.onUpdatePageReport, false);
BrowserApp.deck.addEventListener("touchstart", this, true);
BrowserApp.deck.addEventListener("click", SelectHelper, true);
},
handleEvent: function(aEvent) {
if (!BrowserApp.isBrowserContentDocumentDisplayed() || aEvent.touches.length > 1 || aEvent.defaultPrevented)
return;
let closest = aEvent.target;
if (closest) {
// If we've pressed a scrollable element, let Java know that we may
// want to override the scroll behaviour (for document sub-frames)
this._scrollableElement = this._findScrollableElement(closest, true);
this._firstScrollEvent = true;
if (this._scrollableElement != null) {
// Discard if it's the top-level scrollable, we let Java handle this
let doc = BrowserApp.selectedBrowser.contentDocument;
if (this._scrollableElement != doc.body && this._scrollableElement != doc.documentElement)
sendMessageToJava({ gecko: { type: "Panning:Override" } });
}
}
if (!ElementTouchHelper.isElementClickable(closest, null, false))
closest = ElementTouchHelper.elementFromPoint(BrowserApp.selectedBrowser.contentWindow,
aEvent.changedTouches[0].screenX,
aEvent.changedTouches[0].screenY);
if (!closest)
closest = aEvent.target;
if (closest)
this._doTapHighlight(closest);
},
observe: function(aSubject, aTopic, aData) {
if (aTopic == "dom-touch-listener-added") {
let tab = BrowserApp.getTabForWindow(aSubject.top);
if (!tab)
return;
sendMessageToJava({
gecko: {
type: "Tab:HasTouchListener",
tabID: tab.id
}
});
return;
}
// the remaining events are all dependent on the browser content document being the
// same as the browser displayed document. if they are not the same, we should ignore
// the event.
if (!BrowserApp.isBrowserContentDocumentDisplayed())
return;
if (aTopic == "Gesture:Scroll") {
// If we've lost our scrollable element, return. Don't cancel the
// override, as we probably don't want Java to handle panning until the
// user releases their finger.
if (this._scrollableElement == null)
return;
// If this is the first scroll event and we can't scroll in the direction
// the user wanted, and neither can any non-root sub-frame, cancel the
// override so that Java can handle panning the main document.
let data = JSON.parse(aData);
// round the scroll amounts because they come in as floats and might be
// subject to minor rounding errors because of zoom values. I've seen values
// like 0.99 come in here and get truncated to 0; this avoids that problem.
let zoom = BrowserApp.selectedTab._zoom;
data.x = Math.round(data.x / zoom);
data.y = Math.round(data.y / zoom);
if (this._firstScrollEvent) {
while (this._scrollableElement != null && !this._elementCanScroll(this._scrollableElement, data.x, data.y))
this._scrollableElement = this._findScrollableElement(this._scrollableElement, false);
let doc = BrowserApp.selectedBrowser.contentDocument;
if (this._scrollableElement == null || this._scrollableElement == doc.body || this._scrollableElement == doc.documentElement) {
sendMessageToJava({ gecko: { type: "Panning:CancelOverride" } });
return;
}
this._firstScrollEvent = false;
}
// Scroll the scrollable element
if (this._elementCanScroll(this._scrollableElement, data.x, data.y)) {
this._scrollElementBy(this._scrollableElement, data.x, data.y);
sendMessageToJava({ gecko: { type: "Gesture:ScrollAck", scrolled: true } });
} else {
sendMessageToJava({ gecko: { type: "Gesture:ScrollAck", scrolled: false } });
}
} else if (aTopic == "Gesture:CancelTouch") {
this._cancelTapHighlight();
} else if (aTopic == "Gesture:SingleTap") {
let element = this._highlightElement;
if (element) {
try {
let data = JSON.parse(aData);
let isClickable = ElementTouchHelper.isElementClickable(element);
if (isClickable) {
[data.x, data.y] = this._moveClickPoint(element, data.x, data.y);
element = ElementTouchHelper.anyElementFromPoint(element.ownerDocument.defaultView.top, data.x, data.y);
isClickable = ElementTouchHelper.isElementClickable(element);
}
this._sendMouseEvent("mousemove", element, data.x, data.y);
this._sendMouseEvent("mousedown", element, data.x, data.y);
this._sendMouseEvent("mouseup", element, data.x, data.y);
if (isClickable)
Haptic.performSimpleAction(Haptic.LongPress);
} catch(e) {
Cu.reportError(e);
}
}
this._cancelTapHighlight();
} else if (aTopic == "Gesture:DoubleTap") {
this._cancelTapHighlight();
this.onDoubleTap(aData);
}
},
_zoomOut: function() {
sendMessageToJava({ gecko: { type: "Browser:ZoomToPageWidth"} });
},
_isRectZoomedIn: function(aRect, aViewport) {
// This function checks to see if the area of the rect visible in the
// viewport (i.e. the "overlapArea" variable below) is approximately
// the max area of the rect we can show. It also checks that the rect
// is actually on-screen by testing the left and right edges of the rect.
// In effect, this tells us whether or not zooming in to this rect
// will significantly change what the user is seeing.
const minDifference = -20;
const maxDifference = 20;
let vRect = new Rect(aViewport.cssX, aViewport.cssY, aViewport.cssWidth, aViewport.cssHeight);
let overlap = vRect.intersect(aRect);
let overlapArea = overlap.width * overlap.height;
let availHeight = Math.min(aRect.width * vRect.height / vRect.width, aRect.height);
let showing = overlapArea / (aRect.width * availHeight);
let dw = (aRect.width - vRect.width);
let dx = (aRect.x - vRect.x);
return (showing > 0.9 &&
dx > minDifference && dx < maxDifference &&
dw > minDifference && dw < maxDifference);
},
onDoubleTap: function(aData) {
let data = JSON.parse(aData);
let win = BrowserApp.selectedBrowser.contentWindow;
let zoom = BrowserApp.selectedTab._zoom;
let element = ElementTouchHelper.anyElementFromPoint(win, data.x, data.y);
if (!element) {
this._zoomOut();
return;
}
while (element && !this._shouldZoomToElement(element))
element = element.parentNode;
if (!element) {
this._zoomOut();
} else {
const margin = 15;
let rect = ElementTouchHelper.getBoundingContentRect(element);
let viewport = BrowserApp.selectedTab.getViewport();
let bRect = new Rect(Math.max(viewport.cssPageLeft, rect.x - margin),
rect.y,
rect.w + 2 * margin,
rect.h);
// constrict the rect to the screen's right edge
bRect.width = Math.min(bRect.width, viewport.cssPageRight - bRect.x);
// if the rect is already taking up most of the visible area and is stretching the
// width of the page, then we want to zoom out instead.
if (this._isRectZoomedIn(bRect, viewport)) {
this._zoomOut();
return;
}
rect.type = "Browser:ZoomToRect";
rect.x = bRect.x;
rect.y = bRect.y;
rect.w = bRect.width;
rect.h = Math.min(bRect.width * viewport.cssHeight / viewport.cssWidth, bRect.height);
// if the block we're zooming to is really tall, and the user double-tapped
// more than a screenful of height from the top of it, then adjust the y-coordinate
// so that we center the actual point the user double-tapped upon. this prevents
// flying to the top of a page when double-tapping to zoom in (bug 761721).
// the 1.2 multiplier is just a little fuzz to compensate for bRect including horizontal
// margins but not vertical ones.
let cssTapY = viewport.cssY + data.y;
if ((bRect.height > rect.h) && (cssTapY > rect.y + (rect.h * 1.2))) {
rect.y = cssTapY - (rect.h / 2);
}
sendMessageToJava({ gecko: rect });
}
},
_shouldZoomToElement: function(aElement) {
let win = aElement.ownerDocument.defaultView;
if (win.getComputedStyle(aElement, null).display == "inline")
return false;
if (aElement instanceof Ci.nsIDOMHTMLLIElement)
return false;
if (aElement instanceof Ci.nsIDOMHTMLQuoteElement)
return false;
return true;
},
_firstScrollEvent: false,
_scrollableElement: null,
_highlightElement: null,
_doTapHighlight: function _doTapHighlight(aElement) {
DOMUtils.setContentState(aElement, kStateActive);
this._highlightElement = aElement;
},
_cancelTapHighlight: function _cancelTapHighlight() {
if (!this._highlightElement)
return;
// If the active element is in a sub-frame, we need to make that frame's document
// active to remove the element's active state.
if (this._highlightElement.ownerDocument != BrowserApp.selectedBrowser.contentWindow.document)
DOMUtils.setContentState(this._highlightElement.ownerDocument.documentElement, kStateActive);
DOMUtils.setContentState(BrowserApp.selectedBrowser.contentWindow.document.documentElement, kStateActive);
this._highlightElement = null;
},
_updateLastPosition: function(x, y, dx, dy) {
this.lastX = x;
this.lastY = y;
this.lastTime = Date.now();
this.motionBuffer.push({ dx: dx, dy: dy, time: this.lastTime });
},
_moveClickPoint: function(aElement, aX, aY) {
// the element can be out of the aX/aY point because of the touch radius
// if outside, we gracefully move the touch point to the edge of the element
if (!(aElement instanceof HTMLHtmlElement)) {
let isTouchClick = true;
let rects = ElementTouchHelper.getContentClientRects(aElement);
for (let i = 0; i < rects.length; i++) {
let rect = rects[i];
let inBounds =
(aX > rect.left && aX < (rect.left + rect.width)) &&
(aY > rect.top && aY < (rect.top + rect.height));
if (inBounds) {
isTouchClick = false;
break;
}
}
if (isTouchClick) {
let rect = rects[0];
if (rect.width != 0 || rect.height != 0) {
aX = Math.min(Math.floor(rect.left + rect.width), Math.max(Math.ceil(rect.left), aX));
aY = Math.min(Math.floor(rect.top + rect.height), Math.max(Math.ceil(rect.top), aY));
}
}
}
return [aX, aY];
},
_sendMouseEvent: function _sendMouseEvent(aName, aElement, aX, aY) {
let window = aElement.ownerDocument.defaultView;
try {
let cwu = window.top.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
cwu.sendMouseEventToWindow(aName, aX, aY, 0, 1, 0, true);
} catch(e) {
Cu.reportError(e);
}
},
_hasScrollableOverflow: function(elem) {
var win = elem.ownerDocument.defaultView;
if (!win)
return false;
var computedStyle = win.getComputedStyle(elem);
if (!computedStyle)
return false;
return computedStyle.overflowX == 'auto' || computedStyle.overflowX == 'scroll'
|| computedStyle.overflowY == 'auto' || computedStyle.overflowY == 'scroll';
},
_findScrollableElement: function(elem, checkElem) {
// Walk the DOM tree until we find a scrollable element
let scrollable = false;
while (elem) {
/* Element is scrollable if its scroll-size exceeds its client size, and:
* - It has overflow 'auto' or 'scroll'
* - It's a textarea
* - It's an HTML/BODY node
* - It's a select element showing multiple rows
*/
if (checkElem) {
if (((elem.scrollHeight > elem.clientHeight) ||
(elem.scrollWidth > elem.clientWidth)) &&
(this._hasScrollableOverflow(elem) ||
elem.mozMatchesSelector("html, body, textarea")) ||
(elem instanceof HTMLSelectElement && (elem.size > 1 || elem.multiple))) {
scrollable = true;
break;
}
} else {
checkElem = true;
}
// Propagate up iFrames
if (!elem.parentNode && elem.documentElement && elem.documentElement.ownerDocument)
elem = elem.documentElement.ownerDocument.defaultView.frameElement;
else
elem = elem.parentNode;
}
if (!scrollable)
return null;
return elem;
},
_elementReceivesInput: function(aElement) {
return aElement instanceof Element &&
kElementsReceivingInput.hasOwnProperty(aElement.tagName.toLowerCase()) ||
this._isEditable(aElement);
},
_isEditable: function(aElement) {
let canEdit = false;
if (aElement.isContentEditable || aElement.designMode == "on") {
canEdit = true;
} else if (aElement instanceof HTMLIFrameElement && (aElement.contentDocument.body.isContentEditable || aElement.contentDocument.designMode == "on")) {
canEdit = true;
} else {
canEdit = aElement.ownerDocument && aElement.ownerDocument.designMode == "on";
}
return canEdit;
},
_scrollElementBy: function(elem, x, y) {
elem.scrollTop = elem.scrollTop + y;
elem.scrollLeft = elem.scrollLeft + x;
},
_elementCanScroll: function(elem, x, y) {
let scrollX = (x < 0 && elem.scrollLeft > 0)
|| (x > 0 && elem.scrollLeft < (elem.scrollWidth - elem.clientWidth));
let scrollY = (y < 0 && elem.scrollTop > 0)
|| (y > 0 && elem.scrollTop < (elem.scrollHeight - elem.clientHeight));
return scrollX || scrollY;
}
};
const kReferenceDpi = 240; // standard "pixel" size used in some preferences
const ElementTouchHelper = {
anyElementFromPoint: function(aWindow, aX, aY) {
let cwu = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
let elem = cwu.elementFromPoint(aX, aY, false, true);
while (elem && (elem instanceof HTMLIFrameElement || elem instanceof HTMLFrameElement)) {
let rect = elem.getBoundingClientRect();
aX -= rect.left;
aY -= rect.top;
cwu = elem.contentDocument.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
elem = cwu.elementFromPoint(aX, aY, false, true);
}
return elem;
},
elementFromPoint: function(aWindow, aX, aY) {
// browser's elementFromPoint expect browser-relative client coordinates.
// subtract browser's scroll values to adjust
let cwu = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
let elem = this.getClosest(cwu, aX, aY);
// step through layers of IFRAMEs and FRAMES to find innermost element
while (elem && (elem instanceof HTMLIFrameElement || elem instanceof HTMLFrameElement)) {
// adjust client coordinates' origin to be top left of iframe viewport
let rect = elem.getBoundingClientRect();
aX -= rect.left;
aY -= rect.top;
cwu = elem.contentDocument.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
elem = this.getClosest(cwu, aX, aY);
}
return elem;
},
/* Returns the touch radius in content px. */
getTouchRadius: function getTouchRadius() {
let dpiRatio = ViewportHandler.displayDPI / kReferenceDpi;
let zoom = BrowserApp.selectedTab._zoom;
return {
top: this.radius.top * dpiRatio / zoom,
right: this.radius.right * dpiRatio / zoom,
bottom: this.radius.bottom * dpiRatio / zoom,
left: this.radius.left * dpiRatio / zoom
};
},
/* Returns the touch radius in reference pixels. */
get radius() {
let prefs = Services.prefs;
delete this.radius;
return this.radius = { "top": prefs.getIntPref("browser.ui.touch.top"),
"right": prefs.getIntPref("browser.ui.touch.right"),
"bottom": prefs.getIntPref("browser.ui.touch.bottom"),
"left": prefs.getIntPref("browser.ui.touch.left")
};
},
get weight() {
delete this.weight;
return this.weight = { "visited": Services.prefs.getIntPref("browser.ui.touch.weight.visited") };
},
/* Retrieve the closest element to a point by looking at borders position */
getClosest: function getClosest(aWindowUtils, aX, aY) {
let target = aWindowUtils.elementFromPoint(aX, aY,
true, /* ignore root scroll frame*/
false); /* don't flush layout */
// if this element is clickable we return quickly. also, if it isn't,
// use a cache to speed up future calls to isElementClickable in the
// loop below.
let unclickableCache = new Array();
if (this.isElementClickable(target, unclickableCache, false))
return target;
target = null;
let radius = this.getTouchRadius();
let nodes = aWindowUtils.nodesFromRect(aX, aY, radius.top, radius.right, radius.bottom, radius.left, true, false);
let threshold = Number.POSITIVE_INFINITY;
for (let i = 0; i < nodes.length; i++) {
let current = nodes[i];
if (!current.mozMatchesSelector || !this.isElementClickable(current, unclickableCache, true))
continue;
let rect = current.getBoundingClientRect();
let distance = this._computeDistanceFromRect(aX, aY, rect);
// increase a little bit the weight for already visited items
if (current && current.mozMatchesSelector("*:visited"))
distance *= (this.weight.visited / 100);
if (distance < threshold) {
target = current;
threshold = distance;
}
}
return target;
},
isElementClickable: function isElementClickable(aElement, aUnclickableCache, aAllowBodyListeners) {
const selector = "a,:link,:visited,[role=button],button,input,select,textarea";
let stopNode = null;
if (!aAllowBodyListeners && aElement && aElement.ownerDocument)
stopNode = aElement.ownerDocument.body;
for (let elem = aElement; elem && elem != stopNode; elem = elem.parentNode) {
if (aUnclickableCache && aUnclickableCache.indexOf(elem) != -1)
continue;
if (this._hasMouseListener(elem))
return true;
if (elem.mozMatchesSelector && elem.mozMatchesSelector(selector))
return true;
if (elem instanceof HTMLLabelElement && elem.control != null)
return true;
if (aUnclickableCache)
aUnclickableCache.push(elem);
}
return false;
},
_computeDistanceFromRect: function _computeDistanceFromRect(aX, aY, aRect) {
let x = 0, y = 0;
let xmost = aRect.left + aRect.width;
let ymost = aRect.top + aRect.height;
// compute horizontal distance from left/right border depending if X is
// before/inside/after the element's rectangle
if (aRect.left < aX && aX < xmost)
x = Math.min(xmost - aX, aX - aRect.left);
else if (aX < aRect.left)
x = aRect.left - aX;
else if (aX > xmost)
x = aX - xmost;
// compute vertical distance from top/bottom border depending if Y is
// above/inside/below the element's rectangle
if (aRect.top < aY && aY < ymost)
y = Math.min(ymost - aY, aY - aRect.top);
else if (aY < aRect.top)
y = aRect.top - aY;
if (aY > ymost)
y = aY - ymost;
return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
},
_els: Cc["@mozilla.org/eventlistenerservice;1"].getService(Ci.nsIEventListenerService),
_clickableEvents: ["mousedown", "mouseup", "click"],
_hasMouseListener: function _hasMouseListener(aElement) {
let els = this._els;
let listeners = els.getListenerInfoFor(aElement, {});
for (let i = 0; i < listeners.length; i++) {
if (this._clickableEvents.indexOf(listeners[i].type) != -1)
return true;
}
return false;
},
getContentClientRects: function(aElement) {
let offset = { x: 0, y: 0 };
let nativeRects = aElement.getClientRects();
// step out of iframes and frames, offsetting scroll values
for (let frame = aElement.ownerDocument.defaultView; frame.frameElement; frame = frame.parent) {
// adjust client coordinates' origin to be top left of iframe viewport
let rect = frame.frameElement.getBoundingClientRect();
let left = frame.getComputedStyle(frame.frameElement, "").borderLeftWidth;
let top = frame.getComputedStyle(frame.frameElement, "").borderTopWidth;
offset.x += rect.left + parseInt(left);
offset.y += rect.top + parseInt(top);
}
let result = [];
for (let i = nativeRects.length - 1; i >= 0; i--) {
let r = nativeRects[i];
result.push({ left: r.left + offset.x,
top: r.top + offset.y,
width: r.width,
height: r.height
});
}
return result;
},
getBoundingContentRect: function(aElement) {
if (!aElement)
return {x: 0, y: 0, w: 0, h: 0};
let document = aElement.ownerDocument;
while (document.defaultView.frameElement)
document = document.defaultView.frameElement.ownerDocument;
let cwu = document.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
let scrollX = {}, scrollY = {};
cwu.getScrollXY(false, scrollX, scrollY);
let r = aElement.getBoundingClientRect();
// step out of iframes and frames, offsetting scroll values
for (let frame = aElement.ownerDocument.defaultView; frame.frameElement && frame != content; frame = frame.parent) {
// adjust client coordinates' origin to be top left of iframe viewport
let rect = frame.frameElement.getBoundingClientRect();
let left = frame.getComputedStyle(frame.frameElement, "").borderLeftWidth;
let top = frame.getComputedStyle(frame.frameElement, "").borderTopWidth;
scrollX.value += rect.left + parseInt(left);
scrollY.value += rect.top + parseInt(top);
}
return {x: r.left + scrollX.value,
y: r.top + scrollY.value,
w: r.width,
h: r.height };
}
};
var ErrorPageEventHandler = {
handleEvent: function(aEvent) {
switch (aEvent.type) {
case "click": {
// Don't trust synthetic events
if (!aEvent.isTrusted)
return;
let target = aEvent.originalTarget;
let errorDoc = target.ownerDocument;
// If the event came from an ssl error page, it is probably either the "Add
// Exception…" or "Get me out of here!" button
if (/^about:certerror\?e=nssBadCert/.test(errorDoc.documentURI)) {
let perm = errorDoc.getElementById("permanentExceptionButton");
let temp = errorDoc.getElementById("temporaryExceptionButton");
if (target == temp || target == perm) {
// Handle setting an cert exception and reloading the page
try {
// Add a new SSL exception for this URL
let uri = Services.io.newURI(errorDoc.location.href, null, null);
let sslExceptions = new SSLExceptions();
if (target == perm)
sslExceptions.addPermanentException(uri);
else
sslExceptions.addTemporaryException(uri);
} catch (e) {
dump("Failed to set cert exception: " + e + "\n");
}
errorDoc.location.reload();
} else if (target == errorDoc.getElementById("getMeOutOfHereButton")) {
errorDoc.location = "about:home";
}
}
break;
}
}
}
};
var FindHelper = {
_fastFind: null,
_targetTab: null,
_initialViewport: null,
_viewportChanged: false,
init: function() {
Services.obs.addObserver(this, "FindInPage:Find", false);
Services.obs.addObserver(this, "FindInPage:Prev", false);
Services.obs.addObserver(this, "FindInPage:Next", false);
Services.obs.addObserver(this, "FindInPage:Closed", false);
Services.obs.addObserver(this, "Tab:Selected", false);
},
uninit: function() {
Services.obs.removeObserver(this, "FindInPage:Find");
Services.obs.removeObserver(this, "FindInPage:Prev");
Services.obs.removeObserver(this, "FindInPage:Next");
Services.obs.removeObserver(this, "FindInPage:Closed");
Services.obs.removeObserver(this, "Tab:Selected");
},
observe: function(aMessage, aTopic, aData) {
switch(aTopic) {
case "FindInPage:Find":
this.doFind(aData);
break;
case "FindInPage:Prev":
this.findAgain(aData, true);
break;
case "FindInPage:Next":
this.findAgain(aData, false);
break;
case "Tab:Selected":
case "FindInPage:Closed":
this.findClosed();
break;
}
},
doFind: function(aSearchString) {
if (!this._fastFind) {
this._targetTab = BrowserApp.selectedTab;
this._fastFind = this._targetTab.browser.fastFind;
this._initialViewport = JSON.stringify(this._targetTab.getViewport());
this._viewportChanged = false;
}
let result = this._fastFind.find(aSearchString, false);
this.handleResult(result);
},
findAgain: function(aString, aFindBackwards) {
// This can happen if the user taps next/previous after re-opening the search bar
if (!this._fastFind) {
this.doFind(aString);
return;
}
let result = this._fastFind.findAgain(aFindBackwards, false);
this.handleResult(result);
},
findClosed: function() {
// If there's no find in progress, there's nothing to clean up
if (!this._fastFind)
return;
this._fastFind.collapseSelection();
this._fastFind = null;
this._targetTab = null;
this._initialViewport = null;
this._viewportChanged = false;
},
handleResult: function(aResult) {
if (aResult == Ci.nsITypeAheadFind.FIND_NOTFOUND) {
if (this._viewportChanged) {
if (this._targetTab != BrowserApp.selectedTab) {
// this should never happen
Cu.reportError("Warning: selected tab changed during find!");
// fall through and restore viewport on the initial tab anyway
}
this._targetTab.setViewport(JSON.parse(this._initialViewport));
this._targetTab.sendViewportUpdate();
}
} else {
this._viewportChanged = true;
}
}
};
var FormAssistant = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIFormSubmitObserver]),
// Used to keep track of the element that corresponds to the current
// autocomplete suggestions
_currentInputElement: null,
_isBlocklisted: false,
// Keep track of whether or not an invalid form has been submitted
_invalidSubmit: false,
init: function() {
Services.obs.addObserver(this, "FormAssist:AutoComplete", false);
Services.obs.addObserver(this, "FormAssist:Blocklisted", false);
Services.obs.addObserver(this, "FormAssist:Hidden", false);
Services.obs.addObserver(this, "invalidformsubmit", false);
// We need to use a capturing listener for focus events
BrowserApp.deck.addEventListener("focus", this, true);
BrowserApp.deck.addEventListener("click", this, true);
BrowserApp.deck.addEventListener("input", this, false);
BrowserApp.deck.addEventListener("pageshow", this, false);
},
uninit: function() {
Services.obs.removeObserver(this, "FormAssist:AutoComplete");
Services.obs.removeObserver(this, "FormAssist:Blocklisted");
Services.obs.removeObserver(this, "FormAssist:Hidden");
Services.obs.removeObserver(this, "invalidformsubmit");
BrowserApp.deck.removeEventListener("focus", this);
BrowserApp.deck.removeEventListener("click", this);
BrowserApp.deck.removeEventListener("input", this);
BrowserApp.deck.removeEventListener("pageshow", this);
},
observe: function(aSubject, aTopic, aData) {
switch (aTopic) {
case "FormAssist:AutoComplete":
if (!this._currentInputElement)
break;
let editableElement = this._currentInputElement.QueryInterface(Ci.nsIDOMNSEditableElement);
// If we have an active composition string, commit it before sending
// the autocomplete event with the text that will replace it.
try {
let imeEditor = editableElement.editor.QueryInterface(Ci.nsIEditorIMESupport);
if (imeEditor.composing)
imeEditor.forceCompositionEnd();
} catch (e) {}
editableElement.setUserInput(aData);
let event = this._currentInputElement.ownerDocument.createEvent("Events");
event.initEvent("DOMAutoComplete", true, true);
this._currentInputElement.dispatchEvent(event);
break;
case "FormAssist:Blocklisted":
this._isBlocklisted = (aData == "true");
break;
case "FormAssist:Hidden":
this._currentInputElement = null;
break;
}
},
notifyInvalidSubmit: function notifyInvalidSubmit(aFormElement, aInvalidElements) {
if (!aInvalidElements.length)
return;
// Ignore this notificaiton if the current tab doesn't contain the invalid form
if (BrowserApp.selectedBrowser.contentDocument !=
aFormElement.ownerDocument.defaultView.top.document)
return;
this._invalidSubmit = true;
// Our focus listener will show the element's validation message
let currentElement = aInvalidElements.queryElementAt(0, Ci.nsISupports);
currentElement.focus();
},
handleEvent: function(aEvent) {
switch (aEvent.type) {
case "focus":
let currentElement = aEvent.target;
// Only show a validation message on focus.
this._showValidationMessage(currentElement);
break;
case "click":
currentElement = aEvent.target;
// Prioritize a form validation message over autocomplete suggestions
// when the element is first focused (a form validation message will
// only be available if an invalid form was submitted)
if (this._showValidationMessage(currentElement))
break;
this._showAutoCompleteSuggestions(currentElement);
break;
case "input":
currentElement = aEvent.target;
// Since we can only show one popup at a time, prioritze autocomplete
// suggestions over a form validation message
if (this._showAutoCompleteSuggestions(currentElement))
break;
if (this._showValidationMessage(currentElement))
break;
// If we're not showing autocomplete suggestions, hide the form assist popup
this._hideFormAssistPopup();
break;
// Reset invalid submit state on each pageshow
case "pageshow":
let target = aEvent.originalTarget;
let selectedDocument = BrowserApp.selectedBrowser.contentDocument;
if (target == selectedDocument || target.ownerDocument == selectedDocument)
this._invalidSubmit = false;
}
},
// We only want to show autocomplete suggestions for certain elements
_isAutoComplete: function _isAutoComplete(aElement) {
if (!(aElement instanceof HTMLInputElement) || aElement.readOnly ||
(aElement.getAttribute("type") == "password") ||
(aElement.hasAttribute("autocomplete") &&
aElement.getAttribute("autocomplete").toLowerCase() == "off"))
return false;
return true;
},
// Retrieves autocomplete suggestions for an element from the form autocomplete service.
_getAutoCompleteSuggestions: function _getAutoCompleteSuggestions(aSearchString, aElement) {
// Cache the form autocomplete service for future use
if (!this._formAutoCompleteService)
this._formAutoCompleteService = Cc["@mozilla.org/satchel/form-autocomplete;1"].
getService(Ci.nsIFormAutoComplete);
let results = this._formAutoCompleteService.autoCompleteSearch(aElement.name || aElement.id,
aSearchString, aElement, null);
let suggestions = [];
for (let i = 0; i < results.matchCount; i++) {
let value = results.getValueAt(i);
// Do not show the value if it is the current one in the input field
if (value == aSearchString)
continue;
// Supply a label and value, since they can differ for datalist suggestions
suggestions.push({ label: value, value: value });
}
return suggestions;
},
/**
* (Copied from mobile/xul/chrome/content/forms.js)
* This function is similar to getListSuggestions from
* components/satchel/src/nsInputListAutoComplete.js but sadly this one is
* used by the autocomplete.xml binding which is not in used in fennec
*/
_getListSuggestions: function _getListSuggestions(aElement) {
if (!(aElement instanceof HTMLInputElement) || !aElement.list)
return [];
let suggestions = [];
let filter = !aElement.hasAttribute("mozNoFilter");
let lowerFieldValue = aElement.value.toLowerCase();
let options = aElement.list.options;
let length = options.length;
for (let i = 0; i < length; i++) {
let item = options.item(i);
let label = item.value;
if (item.label)
label = item.label;
else if (item.text)
label = item.text;
if (filter && label.toLowerCase().indexOf(lowerFieldValue) == -1)
continue;
suggestions.push({ label: label, value: item.value });
}
return suggestions;
},
// Gets the element position data necessary for the Java UI to position
// the form assist popup.
_getElementPositionData: function _getElementPositionData(aElement) {
let rect = ElementTouchHelper.getBoundingContentRect(aElement);
let viewport = BrowserApp.selectedTab.getViewport();
return { rect: [rect.x - (viewport.x / viewport.zoom),
rect.y - (viewport.y / viewport.zoom),
rect.w, rect.h],
zoom: viewport.zoom }
},
// Retrieves autocomplete suggestions for an element from the form autocomplete service
// and sends the suggestions to the Java UI, along with element position data.
// Returns true if there are suggestions to show, false otherwise.
_showAutoCompleteSuggestions: function _showAutoCompleteSuggestions(aElement) {
if (!this._isAutoComplete(aElement))
return false;
// Don't display the form auto-complete popup after the user starts typing
// to avoid confusing somes IME. See bug 758820 and bug 632744.
if (this._isBlocklisted && aElement.value.length > 0) {
return false;
}
let autoCompleteSuggestions = this._getAutoCompleteSuggestions(aElement.value, aElement);
let listSuggestions = this._getListSuggestions(aElement);
// On desktop, we show datalist suggestions below autocomplete suggestions,
// without duplicates removed.
let suggestions = autoCompleteSuggestions.concat(listSuggestions);
// Return false if there are no suggestions to show
if (!suggestions.length)
return false;
let positionData = this._getElementPositionData(aElement);
sendMessageToJava({
gecko: {
type: "FormAssist:AutoComplete",
suggestions: suggestions,
rect: positionData.rect,
zoom: positionData.zoom
}
});
// Keep track of input element so we can fill it in if the user
// selects an autocomplete suggestion
this._currentInputElement = aElement;
return true;
},
// Only show a validation message if the user submitted an invalid form,
// there's a non-empty message string, and the element is the correct type
_isValidateable: function _isValidateable(aElement) {
if (!this._invalidSubmit ||
!aElement.validationMessage ||
!(aElement instanceof HTMLInputElement ||
aElement instanceof HTMLTextAreaElement ||
aElement instanceof HTMLSelectElement ||
aElement instanceof HTMLButtonElement))
return false;
return true;
},
// Sends a validation message and position data for an element to the Java UI.
// Returns true if there's a validation message to show, false otherwise.
_showValidationMessage: function _sendValidationMessage(aElement) {
if (!this._isValidateable(aElement))
return false;
let positionData = this._getElementPositionData(aElement);
sendMessageToJava({
gecko: {
type: "FormAssist:ValidationMessage",
validationMessage: aElement.validationMessage,
rect: positionData.rect,
zoom: positionData.zoom
}
});
return true;
},
_hideFormAssistPopup: function _hideFormAssistPopup() {
sendMessageToJava({
gecko: { type: "FormAssist:Hide" }
});
}
};
var XPInstallObserver = {
init: function xpi_init() {
Services.obs.addObserver(XPInstallObserver, "addon-install-blocked", false);
Services.obs.addObserver(XPInstallObserver, "addon-install-started", false);
AddonManager.addInstallListener(XPInstallObserver);
},
uninit: function xpi_uninit() {
Services.obs.removeObserver(XPInstallObserver, "addon-install-blocked");
Services.obs.removeObserver(XPInstallObserver, "addon-install-started");
AddonManager.removeInstallListener(XPInstallObserver);
},
observe: function xpi_observer(aSubject, aTopic, aData) {
switch (aTopic) {
case "addon-install-started":
NativeWindow.toast.show(Strings.browser.GetStringFromName("alertAddonsDownloading"), "short");
break;
case "addon-install-blocked":
let installInfo = aSubject.QueryInterface(Ci.amIWebInstallInfo);
let win = installInfo.originatingWindow;
let tab = BrowserApp.getTabForWindow(win.top);
if (!tab)
return;
let host = installInfo.originatingURI.host;
let brandShortName = Strings.brand.GetStringFromName("brandShortName");
let notificationName, buttons, message;
let strings = Strings.browser;
let enabled = true;
try {
enabled = Services.prefs.getBoolPref("xpinstall.enabled");
}
catch (e) {}
if (!enabled) {
notificationName = "xpinstall-disabled";
if (Services.prefs.prefIsLocked("xpinstall.enabled")) {
message = strings.GetStringFromName("xpinstallDisabledMessageLocked");
buttons = [];
} else {
message = strings.formatStringFromName("xpinstallDisabledMessage2", [brandShortName, host], 2);
buttons = [{
label: strings.GetStringFromName("xpinstallDisabledButton"),
callback: function editPrefs() {
Services.prefs.setBoolPref("xpinstall.enabled", true);
return false;
}
}];
}
} else {
notificationName = "xpinstall";
message = strings.formatStringFromName("xpinstallPromptWarning2", [brandShortName, host], 2);
buttons = [{
label: strings.GetStringFromName("xpinstallPromptAllowButton"),
callback: function() {
// Kick off the install
installInfo.install();
return false;
}
}];
}
NativeWindow.doorhanger.show(message, aTopic, buttons, tab.id);
break;
}
},
onInstallEnded: function(aInstall, aAddon) {
let needsRestart = false;
if (aInstall.existingAddon && (aInstall.existingAddon.pendingOperations & AddonManager.PENDING_UPGRADE))
needsRestart = true;
else if (aAddon.pendingOperations & AddonManager.PENDING_INSTALL)
needsRestart = true;
if (needsRestart) {
this.showRestartPrompt();
} else {
let message = Strings.browser.GetStringFromName("alertAddonsInstalledNoRestart");
NativeWindow.toast.show(message, "short");
}
},
onInstallFailed: function(aInstall) {
NativeWindow.toast.show(Strings.browser.GetStringFromName("alertAddonsFail"), "short");
},
onDownloadProgress: function xpidm_onDownloadProgress(aInstall) {},
onDownloadFailed: function(aInstall) {
this.onInstallFailed(aInstall);
},
onDownloadCancelled: function(aInstall) {
let host = (aInstall.originatingURI instanceof Ci.nsIStandardURL) && aInstall.originatingURI.host;
if (!host)
host = (aInstall.sourceURI instanceof Ci.nsIStandardURL) && aInstall.sourceURI.host;
let error = (host || aInstall.error == 0) ? "addonError" : "addonLocalError";
if (aInstall.error != 0)
error += aInstall.error;
else if (aInstall.addon && aInstall.addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED)
error += "Blocklisted";
else if (aInstall.addon && (!aInstall.addon.isCompatible || !aInstall.addon.isPlatformCompatible))
error += "Incompatible";
else
return; // No need to show anything in this case.
let msg = Strings.browser.GetStringFromName(error);
// TODO: formatStringFromName
msg = msg.replace("#1", aInstall.name);
if (host)
msg = msg.replace("#2", host);
msg = msg.replace("#3", Strings.brand.GetStringFromName("brandShortName"));
msg = msg.replace("#4", Services.appinfo.version);
NativeWindow.toast.show(msg, "short");
},
showRestartPrompt: function() {
let buttons = [{
label: Strings.browser.GetStringFromName("notificationRestart.button"),
callback: function() {
// Notify all windows that an application quit has been requested
let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
Services.obs.notifyObservers(cancelQuit, "quit-application-requested", "restart");
// If nothing aborted, quit the app
if (cancelQuit.data == false) {
let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
appStartup.quit(Ci.nsIAppStartup.eRestart | Ci.nsIAppStartup.eAttemptQuit);
}
}
}];
let message = Strings.browser.GetStringFromName("notificationRestart.normal");
NativeWindow.doorhanger.show(message, "addon-app-restart", buttons, BrowserApp.selectedTab.id, { persistence: -1 });
},
hideRestartPrompt: function() {
NativeWindow.doorhanger.hide("addon-app-restart", BrowserApp.selectedTab.id);
}
};
// Blindly copied from Safari documentation for now.
const kViewportMinScale = 0;
const kViewportMaxScale = 10;
const kViewportMinWidth = 200;
const kViewportMaxWidth = 10000;
const kViewportMinHeight = 223;
const kViewportMaxHeight = 10000;
var ViewportHandler = {
// The cached viewport metadata for each document. We tie viewport metadata to each document
// instead of to each tab so that we don't have to update it when the document changes. Using an
// ES6 weak map lets us avoid leaks.
_metadata: new WeakMap(),
init: function init() {
addEventListener("DOMMetaAdded", this, false);
Services.obs.addObserver(this, "Window:Resize", false);
},
uninit: function uninit() {
removeEventListener("DOMMetaAdded", this, false);
Services.obs.removeObserver(this, "Window:Resize", false);
},
handleEvent: function handleEvent(aEvent) {
switch (aEvent.type) {
case "DOMMetaAdded":
let target = aEvent.originalTarget;
if (target.name != "viewport")
break;
let document = target.ownerDocument;
let browser = BrowserApp.getBrowserForDocument(document);
let tab = BrowserApp.getTabForBrowser(browser);
if (tab)
this.updateMetadata(tab);
break;
}
},
observe: function(aSubject, aTopic, aData) {
switch (aTopic) {
case "Window:Resize":
if (window.outerWidth == gScreenWidth && window.outerHeight == gScreenHeight)
break;
if (window.outerWidth == 0 || window.outerHeight == 0)
break;
let oldScreenWidth = gScreenWidth;
gScreenWidth = window.outerWidth;
gScreenHeight = window.outerHeight;
let tabs = BrowserApp.tabs;
for (let i = 0; i < tabs.length; i++)
tabs[i].updateViewportSize(oldScreenWidth);
break;
}
},
updateMetadata: function updateMetadata(tab) {
let metadata = this.getViewportMetadata(tab.browser.contentWindow);
tab.updateViewportMetadata(metadata);
},
/**
* Returns an object with the page's preferred viewport properties:
* defaultZoom (optional float): The initial scale when the page is loaded.
* minZoom (optional float): The minimum zoom level.
* maxZoom (optional float): The maximum zoom level.
* width (optional int): The CSS viewport width in px.
* height (optional int): The CSS viewport height in px.
* autoSize (boolean): Resize the CSS viewport when the window resizes.
* allowZoom (boolean): Let the user zoom in or out.
* autoScale (boolean): Adjust the viewport properties to account for display density.
*/
getViewportMetadata: function getViewportMetadata(aWindow) {
if (aWindow.document instanceof XULDocument)
return { defaultZoom: 1, autoSize: true, allowZoom: false, autoScale: false };
let windowUtils = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
// viewport details found here
// http://developer.apple.com/safari/library/documentation/AppleApplications/Reference/SafariHTMLRef/Articles/MetaTags.html
// http://developer.apple.com/safari/library/documentation/AppleApplications/Reference/SafariWebContent/UsingtheViewport/UsingtheViewport.html
// Note: These values will be NaN if parseFloat or parseInt doesn't find a number.
// Remember that NaN is contagious: Math.max(1, NaN) == Math.min(1, NaN) == NaN.
let scale = parseFloat(windowUtils.getDocumentMetadata("viewport-initial-scale"));
let minScale = parseFloat(windowUtils.getDocumentMetadata("viewport-minimum-scale"));
let maxScale = parseFloat(windowUtils.getDocumentMetadata("viewport-maximum-scale"));
let widthStr = windowUtils.getDocumentMetadata("viewport-width");
let heightStr = windowUtils.getDocumentMetadata("viewport-height");
let width = this.clamp(parseInt(widthStr), kViewportMinWidth, kViewportMaxWidth);
let height = this.clamp(parseInt(heightStr), kViewportMinHeight, kViewportMaxHeight);
let allowZoomStr = windowUtils.getDocumentMetadata("viewport-user-scalable");
let allowZoom = !/^(0|no|false)$/.test(allowZoomStr); // WebKit allows 0, "no", or "false"
if (isNaN(scale) && isNaN(minScale) && isNaN(maxScale) && allowZoomStr == "" && widthStr == "" && heightStr == "") {
// Only check for HandheldFriendly if we don't have a viewport meta tag
let handheldFriendly = windowUtils.getDocumentMetadata("HandheldFriendly");
if (handheldFriendly == "true")
return { defaultZoom: 1, autoSize: true, allowZoom: true, autoScale: true };
let doctype = aWindow.document.doctype;
if (doctype && /(WAP|WML|Mobile)/.test(doctype.publicId))
return { defaultZoom: 1, autoSize: true, allowZoom: true, autoScale: true };
}
scale = this.clamp(scale, kViewportMinScale, kViewportMaxScale);
minScale = this.clamp(minScale, kViewportMinScale, kViewportMaxScale);
maxScale = this.clamp(maxScale, minScale, kViewportMaxScale);
// If initial scale is 1.0 and width is not set, assume width=device-width
let autoSize = (widthStr == "device-width" ||
(!widthStr && (heightStr == "device-height" || scale == 1.0)));
return {
defaultZoom: scale,
minZoom: minScale,
maxZoom: maxScale,
width: width,
height: height,
autoSize: autoSize,
allowZoom: allowZoom,
autoScale: true
};
},
clamp: function(num, min, max) {
return Math.max(min, Math.min(max, num));
},
// The device-pixel-to-CSS-px ratio used to adjust meta viewport values.
// This is higher on higher-dpi displays, so pages stay about the same physical size.
getScaleRatio: function getScaleRatio() {
let prefValue = Services.prefs.getIntPref("browser.viewport.scaleRatio");
if (prefValue > 0)
return prefValue / 100;
let dpi = this.displayDPI;
if (dpi < 200) // Includes desktop displays, and LDPI and MDPI Android devices
return 1;
else if (dpi < 300) // Includes Nokia N900, and HDPI Android devices
return 1.5;
// For very high-density displays like the iPhone 4, calculate an integer ratio.
return Math.floor(dpi / 150);
},
get displayDPI() {
let utils = window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
delete this.displayDPI;
return this.displayDPI = utils.displayDPI;
},
/**
* Returns the viewport metadata for the given document, or the default metrics if no viewport
* metadata is available for that document.
*/
getMetadataForDocument: function getMetadataForDocument(aDocument) {
let metadata = this._metadata.get(aDocument, this.getDefaultMetadata());
return metadata;
},
/** Updates the saved viewport metadata for the given content document. */
setMetadataForDocument: function setMetadataForDocument(aDocument, aMetadata) {
if (!aMetadata)
this._metadata.delete(aDocument);
else
this._metadata.set(aDocument, aMetadata);
},
/** Returns the default viewport metadata for a document. */
getDefaultMetadata: function getDefaultMetadata() {
return {
autoSize: false,
allowZoom: true,
autoScale: true,
scaleRatio: ViewportHandler.getScaleRatio()
};
}
};
/**
* Handler for blocked popups, triggered by DOMUpdatePageReport events in browser.xml
*/
var PopupBlockerObserver = {
onUpdatePageReport: function onUpdatePageReport(aEvent) {
let browser = BrowserApp.selectedBrowser;
if (aEvent.originalTarget != browser)
return;
if (!browser.pageReport)
return;
let result = Services.perms.testExactPermission(BrowserApp.selectedBrowser.currentURI, "popup");
if (result == Ci.nsIPermissionManager.DENY_ACTION)
return;
// Only show the notification again if we've not already shown it. Since
// notifications are per-browser, we don't need to worry about re-adding
// it.
if (!browser.pageReport.reported) {
if (Services.prefs.getBoolPref("privacy.popups.showBrowserMessage")) {
let brandShortName = Strings.brand.GetStringFromName("brandShortName");
let message;
let popupCount = browser.pageReport.length;
let strings = Strings.browser;
if (popupCount > 1)
message = strings.formatStringFromName("popupWarningMultiple", [brandShortName, popupCount], 2);
else
message = strings.formatStringFromName("popupWarning", [brandShortName], 1);
let buttons = [
{
label: strings.GetStringFromName("popupButtonAllowOnce"),
callback: function() { PopupBlockerObserver.showPopupsForSite(); }
},
{
label: strings.GetStringFromName("popupButtonAlwaysAllow2"),
callback: function() {
// Set permission before opening popup windows
PopupBlockerObserver.allowPopupsForSite(true);
PopupBlockerObserver.showPopupsForSite();
}
},
{
label: strings.GetStringFromName("popupButtonNeverWarn2"),
callback: function() { PopupBlockerObserver.allowPopupsForSite(false); }
}
];
NativeWindow.doorhanger.show(message, "popup-blocked", buttons);
}
// Record the fact that we've reported this blocked popup, so we don't
// show it again.
browser.pageReport.reported = true;
}
},
allowPopupsForSite: function allowPopupsForSite(aAllow) {
let currentURI = BrowserApp.selectedBrowser.currentURI;
Services.perms.add(currentURI, "popup", aAllow
? Ci.nsIPermissionManager.ALLOW_ACTION
: Ci.nsIPermissionManager.DENY_ACTION);
dump("Allowing popups for: " + currentURI);
},
showPopupsForSite: function showPopupsForSite() {
let uri = BrowserApp.selectedBrowser.currentURI;
let pageReport = BrowserApp.selectedBrowser.pageReport;
if (pageReport) {
for (let i = 0; i < pageReport.length; ++i) {
let popupURIspec = pageReport[i].popupWindowURI.spec;
// Sometimes the popup URI that we get back from the pageReport
// isn't useful (for instance, netscape.com's popup URI ends up
// being "http://www.netscape.com", which isn't really the URI of
// the popup they're trying to show). This isn't going to be
// useful to the user, so we won't create a menu item for it.
if (popupURIspec == "" || popupURIspec == "about:blank" || popupURIspec == uri.spec)
continue;
let popupFeatures = pageReport[i].popupWindowFeatures;
let popupName = pageReport[i].popupWindowName;
let parent = BrowserApp.selectedTab;
BrowserApp.addTab(popupURIspec, { parentId: parent.id });
}
}
}
};
var OfflineApps = {
init: function() {
BrowserApp.deck.addEventListener("MozApplicationManifest", this, false);
},
uninit: function() {
BrowserApp.deck.removeEventListener("MozApplicationManifest", this, false);
},
handleEvent: function(aEvent) {
if (aEvent.type == "MozApplicationManifest")
this.offlineAppRequested(aEvent.originalTarget.defaultView);
},
offlineAppRequested: function(aContentWindow) {
if (!Services.prefs.getBoolPref("browser.offline-apps.notify"))
return;
let tab = BrowserApp.getTabForWindow(aContentWindow);
let currentURI = aContentWindow.document.documentURIObject;
// Don't bother showing UI if the user has already made a decision
if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)
return;
try {
if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
// All pages can use offline capabilities, no need to ask the user
return;
}
} catch(e) {
// This pref isn't set by default, ignore failures
}
let host = currentURI.asciiHost;
let notificationID = "offline-app-requested-" + host;
let strings = Strings.browser;
let buttons = [{
label: strings.GetStringFromName("offlineApps.allow"),
callback: function() {
OfflineApps.allowSite(aContentWindow.document);
}
},
{
label: strings.GetStringFromName("offlineApps.never"),
callback: function() {
OfflineApps.disallowSite(aContentWindow.document);
}
},
{
label: strings.GetStringFromName("offlineApps.notNow"),
callback: function() { /* noop */ }
}];
let message = strings.formatStringFromName("offlineApps.available2", [host], 1);
NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id);
},
allowSite: function(aDocument) {
Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.ALLOW_ACTION);
// When a site is enabled while loading, manifest resources will
// start fetching immediately. This one time we need to do it
// ourselves.
this._startFetching(aDocument);
},
disallowSite: function(aDocument) {
Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.DENY_ACTION);
},
_startFetching: function(aDocument) {
if (!aDocument.documentElement)
return;
let manifest = aDocument.documentElement.getAttribute("manifest");
if (!manifest)
return;
let manifestURI = Services.io.newURI(manifest, aDocument.characterSet, aDocument.documentURIObject);
let updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].getService(Ci.nsIOfflineCacheUpdateService);
updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject, window);
}
};
var IndexedDB = {
_permissionsPrompt: "indexedDB-permissions-prompt",
_permissionsResponse: "indexedDB-permissions-response",
_quotaPrompt: "indexedDB-quota-prompt",
_quotaResponse: "indexedDB-quota-response",
_quotaCancel: "indexedDB-quota-cancel",
init: function IndexedDB_init() {
Services.obs.addObserver(this, this._permissionsPrompt, false);
Services.obs.addObserver(this, this._quotaPrompt, false);
Services.obs.addObserver(this, this._quotaCancel, false);
},
uninit: function IndexedDB_uninit() {
Services.obs.removeObserver(this, this._permissionsPrompt, false);
Services.obs.removeObserver(this, this._quotaPrompt, false);
Services.obs.removeObserver(this, this._quotaCancel, false);
},
observe: function IndexedDB_observe(subject, topic, data) {
if (topic != this._permissionsPrompt &&
topic != this._quotaPrompt &&
topic != this._quotaCancel) {
throw new Error("Unexpected topic!");
}
let requestor = subject.QueryInterface(Ci.nsIInterfaceRequestor);
let contentWindow = requestor.getInterface(Ci.nsIDOMWindow);
let contentDocument = contentWindow.document;
let tab = BrowserApp.getTabForWindow(contentWindow);
if (!tab)
return;
let host = contentDocument.documentURIObject.asciiHost;
let strings = Strings.browser;
let message, responseTopic;
if (topic == this._permissionsPrompt) {
message = strings.formatStringFromName("offlineApps.available2", [host], 1);
responseTopic = this._permissionsResponse;
} else if (topic == this._quotaPrompt) {
message = strings.formatStringFromName("indexedDBQuota.wantsTo", [ host, data ], 2);
responseTopic = this._quotaResponse;
} else if (topic == this._quotaCancel) {
responseTopic = this._quotaResponse;
}
let notificationID = responseTopic + host;
let observer = requestor.getInterface(Ci.nsIObserver);
if (topic == this._quotaCancel) {
NativeWindow.doorhanger.hide(notificationID, tab.id);
observer.observe(null, responseTopic, Ci.nsIPermissionManager.UNKNOWN_ACTION);
return;
}
let buttons = [{
label: strings.GetStringFromName("offlineApps.allow"),
callback: function() {
observer.observe(null, responseTopic, Ci.nsIPermissionManager.ALLOW_ACTION);
}
},
{
label: strings.GetStringFromName("offlineApps.never"),
callback: function() {
observer.observe(null, responseTopic, Ci.nsIPermissionManager.DENY_ACTION);
}
},
{
label: strings.GetStringFromName("offlineApps.notNow"),
callback: function() {
observer.observe(null, responseTopic, Ci.nsIPermissionManager.UNKNOWN_ACTION);
}
}];
NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id);
}
};
var ConsoleAPI = {
init: function init() {
Services.obs.addObserver(this, "console-api-log-event", false);
},
uninit: function uninit() {
Services.obs.removeObserver(this, "console-api-log-event", false);
},
observe: function observe(aMessage, aTopic, aData) {
aMessage = aMessage.wrappedJSObject;
let mappedArguments = Array.map(aMessage.arguments, this.formatResult, this);
let joinedArguments = Array.join(mappedArguments, " ");
if (aMessage.level == "error" || aMessage.level == "warn") {
let flag = (aMessage.level == "error" ? Ci.nsIScriptError.errorFlag : Ci.nsIScriptError.warningFlag);
let consoleMsg = Cc["@mozilla.org/scripterror;1"].createInstance(Ci.nsIScriptError);
consoleMsg.init(joinedArguments, null, null, 0, 0, flag, "content javascript");
Services.console.logMessage(consoleMsg);
} else if (aMessage.level == "trace") {
let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let args = aMessage.arguments;
let filename = this.abbreviateSourceURL(args[0].filename);
let functionName = args[0].functionName || bundle.GetStringFromName("stacktrace.anonymousFunction");
let lineNumber = args[0].lineNumber;
let body = bundle.formatStringFromName("stacktrace.outputMessage", [filename, functionName, lineNumber], 3);
body += "\n";
args.forEach(function(aFrame) {
let functionName = aFrame.functionName || bundle.GetStringFromName("stacktrace.anonymousFunction");
body += " " + aFrame.filename + " :: " + functionName + " :: " + aFrame.lineNumber + "\n";
});
Services.console.logStringMessage(body);
} else if (aMessage.level == "time" && aMessage.arguments) {
let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let body = bundle.formatStringFromName("timer.start", [aMessage.arguments.name], 1);
Services.console.logStringMessage(body);
} else if (aMessage.level == "timeEnd" && aMessage.arguments) {
let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let body = bundle.formatStringFromName("timer.end", [aMessage.arguments.name, aMessage.arguments.duration], 2);
Services.console.logStringMessage(body);
} else if (["group", "groupCollapsed", "groupEnd"].indexOf(aMessage.level) != -1) {
// Do nothing yet
} else {
Services.console.logStringMessage(joinedArguments);
}
},
getResultType: function getResultType(aResult) {
let type = aResult === null ? "null" : typeof aResult;
if (type == "object" && aResult.constructor && aResult.constructor.name)
type = aResult.constructor.name;
return type.toLowerCase();
},
formatResult: function formatResult(aResult) {
let output = "";
let type = this.getResultType(aResult);
switch (type) {
case "string":
case "boolean":
case "date":
case "error":
case "number":
case "regexp":
output = aResult.toString();
break;
case "null":
case "undefined":
output = type;
break;
default:
if (aResult.toSource) {
try {
output = aResult.toSource();
} catch (ex) { }
}
if (!output || output == "({})") {
output = aResult.toString();
}
break;
}
return output;
},
abbreviateSourceURL: function abbreviateSourceURL(aSourceURL) {
// Remove any query parameters.
let hookIndex = aSourceURL.indexOf("?");
if (hookIndex > -1)
aSourceURL = aSourceURL.substring(0, hookIndex);
// Remove a trailing "/".
if (aSourceURL[aSourceURL.length - 1] == "/")
aSourceURL = aSourceURL.substring(0, aSourceURL.length - 1);
// Remove all but the last path component.
let slashIndex = aSourceURL.lastIndexOf("/");
if (slashIndex > -1)
aSourceURL = aSourceURL.substring(slashIndex + 1);
return aSourceURL;
}
};
var ClipboardHelper = {
init: function() {
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.copy"), ClipboardHelper.getCopyContext(false), ClipboardHelper.copy.bind(ClipboardHelper));
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.copyAll"), ClipboardHelper.getCopyContext(true), ClipboardHelper.copy.bind(ClipboardHelper));
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.selectAll"), ClipboardHelper.selectAllContext, ClipboardHelper.select.bind(ClipboardHelper));
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.paste"), ClipboardHelper.pasteContext, ClipboardHelper.paste.bind(ClipboardHelper));
NativeWindow.contextmenus.add(Strings.browser.GetStringFromName("contextmenu.changeInputMethod"), NativeWindow.contextmenus.textContext, ClipboardHelper.inputMethod.bind(ClipboardHelper));
},
get clipboardHelper() {
delete this.clipboardHelper;
return this.clipboardHelper = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
},
get clipboard() {
delete this.clipboard;
return this.clipboard = Cc["@mozilla.org/widget/clipboard;1"].getService(Ci.nsIClipboard);
},
copy: function(aElement) {
let selectionStart = aElement.selectionStart;
let selectionEnd = aElement.selectionEnd;
if (selectionStart != selectionEnd) {
string = aElement.value.slice(selectionStart, selectionEnd);
this.clipboardHelper.copyString(string, aElement.ownerDocument);
} else {
this.clipboardHelper.copyString(aElement.value, aElement.ownerDocument);
}
},
select: function(aElement) {
if (!aElement || !(aElement instanceof Ci.nsIDOMNSEditableElement))
return;
let target = aElement.QueryInterface(Ci.nsIDOMNSEditableElement);
target.editor.selectAll();
target.focus();
},
paste: function(aElement) {
if (!aElement || !(aElement instanceof Ci.nsIDOMNSEditableElement))
return;
let target = aElement.QueryInterface(Ci.nsIDOMNSEditableElement);
target.editor.paste(Ci.nsIClipboard.kGlobalClipboard);
target.focus();
},
inputMethod: function(aElement) {
Cc["@mozilla.org/imepicker;1"].getService(Ci.nsIIMEPicker).show();
},
getCopyContext: function(isCopyAll) {
return {
matches: function(aElement) {
if (NativeWindow.contextmenus.textContext.matches(aElement)) {
// Don't include "copy" for password fields.
// mozIsTextField(true) tests for only non-password fields.
if (aElement instanceof Ci.nsIDOMHTMLInputElement && !aElement.mozIsTextField(true))
return false;
let selectionStart = aElement.selectionStart;
let selectionEnd = aElement.selectionEnd;
if (selectionStart != selectionEnd)
return true;
if (isCopyAll && aElement.textLength > 0)
return true;
}
return false;
}
}
},
selectAllContext: {
matches: function selectAllContextMatches(aElement) {
if (NativeWindow.contextmenus.textContext.matches(aElement)) {
let selectionStart = aElement.selectionStart;
let selectionEnd = aElement.selectionEnd;
return (selectionStart > 0 || selectionEnd < aElement.textLength);
}
return false;
}
},
pasteContext: {
matches: function(aElement) {
if (NativeWindow.contextmenus.textContext.matches(aElement)) {
let flavors = ["text/unicode"];
return ClipboardHelper.clipboard.hasDataMatchingFlavors(flavors, flavors.length, Ci.nsIClipboard.kGlobalClipboard);
}
return false;
}
}
};
var PluginHelper = {
showDoorHanger: function(aTab) {
if (!aTab.browser)
return;
// Even though we may not end up showing a doorhanger, this flag
// lets us know that we've tried to show a doorhanger.
aTab.shouldShowPluginDoorhanger = false;
let uri = aTab.browser.currentURI;
// If the user has previously set a plugins permission for this website,
// either play or don't play the plugins instead of showing a doorhanger.
let permValue = Services.perms.testPermission(uri, "plugins");
if (permValue != Services.perms.UNKNOWN_ACTION) {
if (permValue == Services.perms.ALLOW_ACTION)
PluginHelper.playAllPlugins(aTab.browser.contentWindow);
return;
}
let message = Strings.browser.formatStringFromName("clickToPlayPlugins.message1",
[uri.host], 1);
let buttons = [
{
label: Strings.browser.GetStringFromName("clickToPlayPlugins.yes"),
callback: function(aChecked) {
// If the user checked "Don't ask again", make a permanent exception
if (aChecked)
Services.perms.add(uri, "plugins", Ci.nsIPermissionManager.ALLOW_ACTION);
PluginHelper.playAllPlugins(aTab.browser.contentWindow);
}
},
{
label: Strings.browser.GetStringFromName("clickToPlayPlugins.no"),
callback: function(aChecked) {
// If the user checked "Don't ask again", make a permanent exception
if (aChecked)
Services.perms.add(uri, "plugins", Ci.nsIPermissionManager.DENY_ACTION);
// Other than that, do nothing
}
}
];
// Add a checkbox with a "Don't ask again" message
let options = { checkbox: Strings.browser.GetStringFromName("clickToPlayPlugins.dontAskAgain") };
NativeWindow.doorhanger.show(message, "ask-to-play-plugins", buttons, aTab.id, options);
},
playAllPlugins: function(aContentWindow) {
let cwu = aContentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils);
// XXX not sure if we should enable plugins for the parent documents...
let plugins = cwu.plugins;
if (!plugins || !plugins.length)
return;
plugins.forEach(this.playPlugin);
},
playPlugin: function(plugin) {
let objLoadingContent = plugin.QueryInterface(Ci.nsIObjectLoadingContent);
if (!objLoadingContent.activated)
objLoadingContent.playPlugin();
},
getPluginPreference: function getPluginPreference() {
let pluginDisable = Services.prefs.getBoolPref("plugin.disable");
if (pluginDisable)
return "0";
let clickToPlay = Services.prefs.getBoolPref("plugins.click_to_play");
return clickToPlay ? "2" : "1";
},
setPluginPreference: function setPluginPreference(aValue) {
switch (aValue) {
case "0": // Enable Plugins = No
Services.prefs.setBoolPref("plugin.disable", true);
Services.prefs.clearUserPref("plugins.click_to_play");
break;
case "1": // Enable Plugins = Yes
Services.prefs.clearUserPref("plugin.disable");
Services.prefs.setBoolPref("plugins.click_to_play", false);
break;
case "2": // Enable Plugins = Tap to Play (default)
Services.prefs.clearUserPref("plugin.disable");
Services.prefs.clearUserPref("plugins.click_to_play");
break;
}
},
// Copied from /browser/base/content/browser.js
isTooSmall : function (plugin, overlay) {
// Is the <object>'s size too small to hold what we want to show?
let pluginRect = plugin.getBoundingClientRect();
// XXX bug 446693. The text-shadow on the submitted-report text at
// the bottom causes scrollHeight to be larger than it should be.
let overflows = (overlay.scrollWidth > pluginRect.width) ||
(overlay.scrollHeight - 5 > pluginRect.height);
return overflows;
}
};
var PermissionsHelper = {
_permissonTypes: ["password", "geolocation", "popup", "indexedDB",
"offline-app", "desktop-notification", "plugins"],
_permissionStrings: {
"password": {
label: "password.rememberPassword",
allowed: "password.remember",
denied: "password.never"
},
"geolocation": {
label: "geolocation.shareLocation",
allowed: "geolocation.alwaysAllow",
denied: "geolocation.neverAllow"
},
"popup": {
label: "blockPopups.label",
allowed: "popupButtonAlwaysAllow2",
denied: "popupButtonNeverWarn2"
},
"indexedDB": {
label: "offlineApps.storeOfflineData",
allowed: "offlineApps.allow",
denied: "offlineApps.never"
},
"offline-app": {
label: "offlineApps.storeOfflineData",
allowed: "offlineApps.allow",
denied: "offlineApps.never"
},
"desktop-notification": {
label: "desktopNotification.useNotifications",
allowed: "desktopNotification.allow",
denied: "desktopNotification.dontAllow"
},
"plugins": {
label: "clickToPlayPlugins.playPlugins",
allowed: "clickToPlayPlugins.yes",
denied: "clickToPlayPlugins.no"
}
},
init: function init() {
Services.obs.addObserver(this, "Permissions:Get", false);
Services.obs.addObserver(this, "Permissions:Clear", false);
},
observe: function observe(aSubject, aTopic, aData) {
let uri = BrowserApp.selectedBrowser.currentURI;
switch (aTopic) {
case "Permissions:Get":
let permissions = [];
for (let i = 0; i < this._permissonTypes.length; i++) {
let type = this._permissonTypes[i];
let value = this.getPermission(uri, type);
// Only add the permission if it was set by the user
if (value == Services.perms.UNKNOWN_ACTION)
continue;
// Get the strings that correspond to the permission type
let typeStrings = this._permissionStrings[type];
let label = Strings.browser.GetStringFromName(typeStrings["label"]);
// Get the key to look up the appropriate string entity
let valueKey = value == Services.perms.ALLOW_ACTION ?
"allowed" : "denied";
let valueString = Strings.browser.GetStringFromName(typeStrings[valueKey]);
// If we implement a two-line UI, we will need to pass the label and
// value individually and let java handle the formatting
let setting = Strings.browser.formatStringFromName("siteSettings.labelToValue",
[ label, valueString ], 2);
permissions.push({
type: type,
setting: setting
});
}
// Keep track of permissions, so we know which ones to clear
this._currentPermissions = permissions;
let host;
try {
host = uri.host;
} catch(e) {
host = uri.spec;
}
sendMessageToJava({
gecko: {
type: "Permissions:Data",
host: host,
permissions: permissions
}
});
break;
case "Permissions:Clear":
// An array of the indices of the permissions we want to clear
let permissionsToClear = JSON.parse(aData);
for (let i = 0; i < permissionsToClear.length; i++) {
let indexToClear = permissionsToClear[i];
let permissionType = this._currentPermissions[indexToClear]["type"];
this.clearPermission(uri, permissionType);
}
break;
}
},
/**
* Gets the permission value stored for a specified permission type.
*
* @param aType
* The permission type string stored in permission manager.
* e.g. "geolocation", "indexedDB", "popup"
*
* @return A permission value defined in nsIPermissionManager.
*/
getPermission: function getPermission(aURI, aType) {
// Password saving isn't a nsIPermissionManager permission type, so handle
// it seperately.
if (aType == "password") {
// By default, login saving is enabled, so if it is disabled, the
// user selected the never remember option
if (!Services.logins.getLoginSavingEnabled(aURI.prePath))
return Services.perms.DENY_ACTION;
// Check to see if the user ever actually saved a login
if (Services.logins.countLogins(aURI.prePath, "", ""))
return Services.perms.ALLOW_ACTION;
return Services.perms.UNKNOWN_ACTION;
}
// Geolocation consumers use testExactPermission
if (aType == "geolocation")
return Services.perms.testExactPermission(aURI, aType);
return Services.perms.testPermission(aURI, aType);
},
/**
* Clears a user-set permission value for the site given a permission type.
*
* @param aType
* The permission type string stored in permission manager.
* e.g. "geolocation", "indexedDB", "popup"
*/
clearPermission: function clearPermission(aURI, aType) {
// Password saving isn't a nsIPermissionManager permission type, so handle
// it seperately.
if (aType == "password") {
// Get rid of exisiting stored logings
let logins = Services.logins.findLogins({}, aURI.prePath, "", "");
for (let i = 0; i < logins.length; i++) {
Services.logins.removeLogin(logins[i]);
}
// Re-set login saving to enabled
Services.logins.setLoginSavingEnabled(aURI.prePath, true);
} else {
Services.perms.remove(aURI.host, aType);
// Clear content prefs set in ContentPermissionPrompt.js
Services.contentPrefs.removePref(aURI, aType + ".request.remember");
}
}
};
var MasterPassword = {
pref: "privacy.masterpassword.enabled",
_tokenName: "",
get _secModuleDB() {
delete this._secModuleDB;
return this._secModuleDB = Cc["@mozilla.org/security/pkcs11moduledb;1"].getService(Ci.nsIPKCS11ModuleDB);
},
get _pk11DB() {
delete this._pk11DB;
return this._pk11DB = Cc["@mozilla.org/security/pk11tokendb;1"].getService(Ci.nsIPK11TokenDB);
},
get enabled() {
let slot = this._secModuleDB.findSlotByName(this._tokenName);
if (slot) {
let status = slot.status;
return status != Ci.nsIPKCS11Slot.SLOT_UNINITIALIZED && status != Ci.nsIPKCS11Slot.SLOT_READY;
}
return false;
},
setPassword: function setPassword(aPassword) {
try {
let status;
let slot = this._secModuleDB.findSlotByName(this._tokenName);
if (slot)
status = slot.status;
else
return false;
let token = this._pk11DB.findTokenByName(this._tokenName);
if (status == Ci.nsIPKCS11Slot.SLOT_UNINITIALIZED)
token.initPassword(aPassword);
else if (status == Ci.nsIPKCS11Slot.SLOT_READY)
token.changePassword("", aPassword);
this.updatePref();
return true;
} catch(e) {
dump("MasterPassword.setPassword: " + e);
}
return false;
},
removePassword: function removePassword(aOldPassword) {
try {
let token = this._pk11DB.getInternalKeyToken();
if (token.checkPassword(aOldPassword)) {
token.changePassword(aOldPassword, "");
this.updatePref();
return true;
}
} catch(e) {
dump("MasterPassword.removePassword: " + e + "\n");
}
NativeWindow.toast.show(Strings.browser.GetStringFromName("masterPassword.incorrect"), "short");
return false;
},
updatePref: function() {
var prefs = [];
let pref = {
name: this.pref,
type: "bool",
value: this.enabled
};
prefs.push(pref);
sendMessageToJava({
gecko: {
type: "Preferences:Data",
preferences: prefs
}
});
}
};
var CharacterEncoding = {
_charsets: [],
init: function init() {
Services.obs.addObserver(this, "CharEncoding:Get", false);
Services.obs.addObserver(this, "CharEncoding:Set", false);
this.sendState();
},
uninit: function uninit() {
Services.obs.removeObserver(this, "CharEncoding:Get", false);
Services.obs.removeObserver(this, "CharEncoding:Set", false);
},
observe: function observe(aSubject, aTopic, aData) {
switch (aTopic) {
case "CharEncoding:Get":
this.getEncoding();
break;
case "CharEncoding:Set":
this.setEncoding(aData);
break;
}
},
sendState: function sendState() {
let showCharEncoding = "false";
try {
showCharEncoding = Services.prefs.getComplexValue("browser.menu.showCharacterEncoding", Ci.nsIPrefLocalizedString).data;
} catch (e) { /* Optional */ }
sendMessageToJava({
gecko: {
type: "CharEncoding:State",
visible: showCharEncoding
}
});
},
getEncoding: function getEncoding() {
function normalizeCharsetCode(charsetCode) {
return charsetCode.trim().toLowerCase();
}
function getTitle(charsetCode) {
let charsetTitle = charsetCode;
try {
charsetTitle = Strings.charset.GetStringFromName(charsetCode + ".title");
} catch (e) {
dump("error: title not found for " + charsetCode);
}
return charsetTitle;
}
if (!this._charsets.length) {
let charsets = Services.prefs.getComplexValue("intl.charsetmenu.browser.static", Ci.nsIPrefLocalizedString).data;
this._charsets = charsets.split(",").map(function (charset) {
return {
code: normalizeCharsetCode(charset),
title: getTitle(charset)
};
});
}
// if document charset is not in charset options, add it
let docCharset = normalizeCharsetCode(BrowserApp.selectedBrowser.contentDocument.characterSet);
let selected = 0;
let charsetCount = this._charsets.length;
for (; selected < charsetCount && this._charsets[selected].code != docCharset; selected++);
if (selected == charsetCount) {
this._charsets.push({
code: docCharset,
title: getTitle(docCharset)
});
}
sendMessageToJava({
gecko: {
type: "CharEncoding:Data",
charsets: this._charsets,
selected: selected
}
});
},
setEncoding: function setEncoding(aEncoding) {
let browser = BrowserApp.selectedBrowser;
let docCharset = browser.docShell.QueryInterface(Ci.nsIDocCharset);
docCharset.charset = aEncoding;
browser.reload(Ci.nsIWebNavigation.LOAD_FLAGS_CHARSET_CHANGE);
}
};
var IdentityHandler = {
// Mode strings used to control CSS display
IDENTITY_MODE_IDENTIFIED : "identified", // High-quality identity information
IDENTITY_MODE_DOMAIN_VERIFIED : "verified", // Minimal SSL CA-signed domain verification
IDENTITY_MODE_UNKNOWN : "unknown", // No trusted identity information
// Cache the most recent SSLStatus and Location seen in getIdentityStrings
_lastStatus : null,
_lastLocation : null,
/**
* Helper to parse out the important parts of _lastStatus (of the SSL cert in
* particular) for use in constructing identity UI strings
*/
getIdentityData : function() {
let result = {};
let status = this._lastStatus.QueryInterface(Components.interfaces.nsISSLStatus);
let cert = status.serverCert;
// Human readable name of Subject
result.subjectOrg = cert.organization;
// SubjectName fields, broken up for individual access
if (cert.subjectName) {
result.subjectNameFields = {};
cert.subjectName.split(",").forEach(function(v) {
let field = v.split("=");
this[field[0]] = field[1];
}, result.subjectNameFields);
// Call out city, state, and country specifically
result.city = result.subjectNameFields.L;
result.state = result.subjectNameFields.ST;
result.country = result.subjectNameFields.C;
}
// Human readable name of Certificate Authority
result.caOrg = cert.issuerOrganization || cert.issuerCommonName;
result.cert = cert;
return result;
},
getIdentityMode: function getIdentityMode(aState) {
if (aState & Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL)
return this.IDENTITY_MODE_IDENTIFIED;
if (aState & Ci.nsIWebProgressListener.STATE_SECURE_HIGH)
return this.IDENTITY_MODE_DOMAIN_VERIFIED;
return this.IDENTITY_MODE_UNKNOWN;
},
/**
* Determine the identity of the page being displayed by examining its SSL cert
* (if available). Return the data needed to update the UI.
*/
checkIdentity: function checkIdentity(aState, aBrowser) {
this._lastStatus = aBrowser.securityUI
.QueryInterface(Components.interfaces.nsISSLStatusProvider)
.SSLStatus;
// Don't pass in the actual location object, since it can cause us to
// hold on to the window object too long. Just pass in the fields we
// care about. (bug 424829)
let locationObj = {};
try {
let location = aBrowser.contentWindow.location;
locationObj.host = location.host;
locationObj.hostname = location.hostname;
locationObj.port = location.port;
} catch (ex) {
// Can sometimes throw if the URL being visited has no host/hostname,
// e.g. about:blank. The _state for these pages means we won't need these
// properties anyways, though.
}
this._lastLocation = locationObj;
let mode = this.getIdentityMode(aState);
let result = { mode: mode };
// We can't to do anything else for pages without identity data
if (mode == this.IDENTITY_MODE_UNKNOWN)
return result;
// Ideally we'd just make this a Java string
result.encrypted = Strings.browser.GetStringFromName("identity.encrypted2");
result.host = this.getEffectiveHost();
let iData = this.getIdentityData();
result.verifier = Strings.browser.formatStringFromName("identity.identified.verifier", [iData.caOrg], 1);
// If the cert is identified, then we can populate the results with credentials
if (mode == this.IDENTITY_MODE_IDENTIFIED) {
result.owner = iData.subjectOrg;
// Build an appropriate supplemental block out of whatever location data we have
let supplemental = "";
if (iData.city)
supplemental += iData.city + "\n";
if (iData.state && iData.country)
supplemental += Strings.browser.formatStringFromName("identity.identified.state_and_country", [iData.state, iData.country], 2);
else if (iData.state) // State only
supplemental += iData.state;
else if (iData.country) // Country only
supplemental += iData.country;
result.supplemental = supplemental;
return result;
}
// Otherwise, we don't know the cert owner
result.owner = Strings.browser.GetStringFromName("identity.ownerUnknown2");
// Cache the override service the first time we need to check it
if (!this._overrideService)
this._overrideService = Cc["@mozilla.org/security/certoverride;1"].getService(Ci.nsICertOverrideService);
// Check whether this site is a security exception. XPConnect does the right
// thing here in terms of converting _lastLocation.port from string to int, but
// the overrideService doesn't like undefined ports, so make sure we have
// something in the default case (bug 432241).
// .hostname can return an empty string in some exceptional cases -
// hasMatchingOverride does not handle that, so avoid calling it.
// Updating the tooltip value in those cases isn't critical.
// FIXME: Fixing bug 646690 would probably makes this check unnecessary
if (this._lastLocation.hostname &&
this._overrideService.hasMatchingOverride(this._lastLocation.hostname,
(this._lastLocation.port || 443),
iData.cert, {}, {}))
result.verifier = Strings.browser.GetStringFromName("identity.identified.verified_by_you");
return result;
},
/**
* Return the eTLD+1 version of the current hostname
*/
getEffectiveHost: function getEffectiveHost() {
if (!this._IDNService)
this._IDNService = Cc["@mozilla.org/network/idn-service;1"]
.getService(Ci.nsIIDNService);
try {
let baseDomain = Services.eTLD.getBaseDomainFromHost(this._lastLocation.hostname);
return this._IDNService.convertToDisplayIDN(baseDomain, {});
} catch (e) {
// If something goes wrong (e.g. hostname is an IP address) just fail back
// to the full domain.
return this._lastLocation.hostname;
}
}
};
function OverscrollController(aTab) {
this.tab = aTab;
}
OverscrollController.prototype = {
supportsCommand : function supportsCommand(aCommand) {
if (aCommand != "cmd_linePrevious" && aCommand != "cmd_scrollPageUp")
return false;
return (this.tab.getViewport().y == 0);
},
isCommandEnabled : function isCommandEnabled(aCommand) {
return this.supportsCommand(aCommand);
},
doCommand : function doCommand(aCommand){
sendMessageToJava({ gecko: { type: "ToggleChrome:Focus" } });
},
onEvent : function onEvent(aEvent) { }
};
var SearchEngines = {
_contextMenuId: null,
init: function init() {
Services.obs.addObserver(this, "SearchEngines:Get", false);
let contextName = Strings.browser.GetStringFromName("contextmenu.addSearchEngine");
let filter = {
matches: function (aElement) {
return (aElement.form && NativeWindow.contextmenus.textContext.matches(aElement));
}
};
this._contextMenuId = NativeWindow.contextmenus.add(contextName, filter, this.addEngine);
},
uninit: function uninit() {
Services.obs.removeObserver(this, "SearchEngines:Get", false);
if (this._contextMenuId != null)
NativeWindow.contextmenus.remove(this._contextMenuId);
},
_handleSearchEnginesGet: function _handleSearchEnginesGet(rv) {
if (!Components.isSuccessCode(rv)) {
Cu.reportError("Could not initialize search service, bailing out.");
return;
}
let engineData = Services.search.getVisibleEngines({});
let searchEngines = engineData.map(function (engine) {
return {
name: engine.name,
iconURI: (engine.iconURI ? engine.iconURI.spec : null)
};
});
let suggestTemplate = null;
let suggestEngine = null;
if (Services.prefs.getBoolPref("browser.search.suggest.enabled")) {
let engine = this.getSuggestionEngine();
if (engine != null) {
suggestEngine = engine.name;
suggestTemplate = engine.getSubmission("__searchTerms__", "application/x-suggestions+json").uri.spec;
}
}
sendMessageToJava({
gecko: {
type: "SearchEngines:Data",
searchEngines: searchEngines,
suggestEngine: suggestEngine,
suggestTemplate: suggestTemplate
}
});
},
observe: function observe(aSubject, aTopic, aData) {
if (aTopic == "SearchEngines:Get") {
Services.search.init(this._handleSearchEnginesGet.bind(this));
}
},
getSuggestionEngine: function () {
let engines = [ Services.search.currentEngine,
Services.search.defaultEngine,
Services.search.originalDefaultEngine ];
for (let i = 0; i < engines.length; i++) {
let engine = engines[i];
if (engine && engine.supportsResponseType("application/x-suggestions+json"))
return engine;
}
return null;
},
addEngine: function addEngine(aElement) {
let form = aElement.form;
let charset = aElement.ownerDocument.characterSet;
let docURI = Services.io.newURI(aElement.ownerDocument.URL, charset, null);
let formURL = Services.io.newURI(form.getAttribute("action"), charset, docURI).spec;
let method = form.method.toUpperCase();
let formData = [];
for each (let el in form.elements) {
if (!el.type)
continue;
// make this text field a generic search parameter
if (aElement == el) {
formData.push({ name: el.name, value: "{searchTerms}" });
continue;
}
let type = el.type.toLowerCase();
let escapedName = escape(el.name);
let escapedValue = escape(el.value);
// add other form elements as parameters
switch (el.type) {
case "checkbox":
case "radio":
if (!el.checked) break;
case "text":
case "hidden":
case "textarea":
formData.push({ name: escapedName, value: escapedValue });
break;
case "select-one":
for each (let option in el.options) {
if (option.selected) {
formData.push({ name: escapedName, value: escapedValue });
break;
}
}
}
}
// prompt user for name of search engine
let promptTitle = Strings.browser.GetStringFromName("contextmenu.addSearchEngine");
let title = { value: (aElement.ownerDocument.title || docURI.host) };
if (!Services.prompt.prompt(null, promptTitle, null, title, null, {}))
return;
// fetch the favicon for this page
let dbFile = FileUtils.getFile("ProfD", ["browser.db"]);
let mDBConn = Services.storage.openDatabase(dbFile);
let stmts = [];
stmts[0] = mDBConn.createStatement("SELECT favicon FROM images WHERE url_key = ?");
stmts[0].bindStringParameter(0, docURI.spec);
let favicon = null;
Services.search.init(function addEngine_cb(rv) {
if (!Components.isSuccessCode(rv)) {
Cu.reportError("Could not initialize search service, bailing out.");
return;
}
mDBConn.executeAsync(stmts, stmts.length, {
handleResult: function (results) {
let bytes = results.getNextRow().getResultByName("favicon");
favicon = "data:image/png;base64," + btoa(String.fromCharCode.apply(null, bytes));
},
handleCompletion: function (reason) {
// if there's already an engine with this name, add a number to
// make the name unique (e.g., "Google" becomes "Google 2")
let name = title.value;
for (let i = 2; Services.search.getEngineByName(name); i++)
name = title.value + " " + i;
Services.search.addEngineWithDetails(name, favicon, null, null, method, formURL);
let engine = Services.search.getEngineByName(name);
engine.wrappedJSObject._queryCharset = charset;
for each (let param in formData) {
if (param.name && param.value)
engine.addParam(param.name, param.value, null);
}
}
});
});
}
};
var ActivityObserver = {
init: function ao_init() {
Services.obs.addObserver(this, "application-background", false);
Services.obs.addObserver(this, "application-foreground", false);
},
observe: function ao_observe(aSubject, aTopic, aData) {
let isForeground = false
switch (aTopic) {
case "application-background" :
isForeground = false;
break;
case "application-foreground" :
isForeground = true;
break;
}
let tab = BrowserApp.selectedTab;
if (tab && tab.getActive() != isForeground) {
tab.setActive(isForeground);
}
}
};
var WebappsUI = {
init: function init() {
Cu.import("resource://gre/modules/Webapps.jsm");
DOMApplicationRegistry.allAppsLaunchable = true;
Services.obs.addObserver(this, "webapps-ask-install", false);
Services.obs.addObserver(this, "webapps-launch", false);
Services.obs.addObserver(this, "webapps-sync-install", false);
Services.obs.addObserver(this, "webapps-sync-uninstall", false);
Services.obs.addObserver(this, "webapps-install-error", false);
},
uninit: function unint() {
Services.obs.removeObserver(this, "webapps-ask-install");
Services.obs.removeObserver(this, "webapps-launch");
Services.obs.removeObserver(this, "webapps-sync-install");
Services.obs.removeObserver(this, "webapps-sync-uninstall");
Services.obs.removeObserver(this, "webapps-install-error", false);
},
DEFAULT_PREFS_FILENAME: "default-prefs.js",
observe: function observe(aSubject, aTopic, aData) {
let data = {};
try { data = JSON.parse(aData); }
catch(ex) { }
switch (aTopic) {
case "webapps-install-error":
let msg = "";
switch (aData) {
case "INVALID_MANIFEST":
case "MANIFEST_PARSE_ERROR":
msg = Strings.browser.GetStringFromName("webapps.manifestInstallError");
break;
case "NETWORK_ERROR":
case "MANIFEST_URL_ERROR":
msg = Strings.browser.GetStringFromName("webapps.networkInstallError");
break;
default:
msg = Strings.browser.GetStringFromName("webapps.installError");
}
NativeWindow.toast.show(msg, "short");
console.log("Error installing app: " + aData);
break;
case "webapps-ask-install":
this.doInstall(data);
break;
case "webapps-launch":
DOMApplicationRegistry.getManifestFor(data.origin, (function(aManifest) {
if (!aManifest)
return;
let manifest = new DOMApplicationManifest(aManifest, data.origin);
this.openURL(manifest.fullLaunchPath(), data.origin);
}).bind(this));
break;
case "webapps-sync-install":
// Create a system notification allowing the user to launch the app
DOMApplicationRegistry.getManifestFor(data.origin, (function(aManifest) {
if (!aManifest)
return;
let manifest = new DOMApplicationManifest(aManifest, data.origin);
let observer = {
observe: function (aSubject, aTopic) {
if (aTopic == "alertclickcallback") {
WebappsUI.openURL(manifest.fullLaunchPath(), data.origin);
}
}
};
let message = Strings.browser.GetStringFromName("webapps.alertSuccess");
let alerts = Cc["@mozilla.org/alerts-service;1"].getService(Ci.nsIAlertsService);
alerts.showAlertNotification("drawable://alert_app", manifest.name, message, true, "", observer, "webapp");
}).bind(this));
break;
case "webapps-sync-uninstall":
sendMessageToJava({
gecko: {
type: "WebApps:Uninstall",
uniqueURI: data.origin
}
});
break;
}
},
getBiggestIcon: function getBiggestIcon(aIcons, aOrigin) {
const DEFAULT_ICON = "chrome://browser/skin/images/default-app-icon.png";
if (!aIcons)
return DEFAULT_ICON;
let iconSizes = Object.keys(aIcons);
if (iconSizes.length == 0)
return DEFAULT_ICON;
iconSizes.sort(function(a, b) a - b);
let biggestIcon = aIcons[iconSizes.pop()];
let iconURI = null;
try {
iconURI = Services.io.newURI(biggestIcon, null, null);
if (iconURI.scheme == "data") {
return iconURI.spec;
}
} catch (ex) {
// we don't have a biggestIcon or its not a valid url
}
// if we have an origin, try to resolve biggestIcon as a relative url
if (!iconURI && aOrigin) {
try {
iconURI = Services.io.newURI(aOrigin.resolve(biggestIcon), null, null);
} catch (ex) {
console.log("Could not resolve url: " + aOrigin.spec + " " + biggestIcon + " - " + ex);
}
}
return iconURI ? iconURI.spec : DEFAULT_ICON;
},
doInstall: function doInstall(aData) {
let manifest = new DOMApplicationManifest(aData.app.manifest, aData.app.origin);
let name = manifest.name ? manifest.name : manifest.fullLaunchPath();
if (Services.prompt.confirm(null, Strings.browser.GetStringFromName("webapps.installTitle"), name)) {
// Add a homescreen shortcut -- we can't use createShortcut, since we need to pass
// a unique ID for Android webapp allocation
this.makeBase64Icon(this.getBiggestIcon(manifest.icons, Services.io.newURI(aData.app.origin, null, null)),
(function(icon) {
let profilePath = sendMessageToJava({
gecko: {
type: "WebApps:Install",
name: manifest.name,
launchPath: manifest.fullLaunchPath(),
iconURL: icon,
uniqueURI: aData.app.origin
}
});
// if java returned a profile path to us, try to use it to pre-populate the app cache
let file = null;
if (profilePath) {
file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.initWithPath(profilePath);
// build any app specific default prefs
let prefs = [];
if (manifest.orientation)
prefs.push({name:"app.orientation.default", value: manifest.orientation});
// write them into the app profile
let defaultPrefsFile = file.clone();
defaultPrefsFile.append(this.DEFAULT_PREFS_FILENAME);
this.writeDefaultPrefs(defaultPrefsFile, prefs);
}
DOMApplicationRegistry.confirmInstall(aData, false, file);
}).bind(this));
} else {
DOMApplicationRegistry.denyInstall(aData);
}
},
writeDefaultPrefs: function webapps_writeDefaultPrefs(aFile, aPrefs) {
if (aPrefs.length > 0) {
let data = JSON.stringify(aPrefs);
var ostream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
ostream.init(aFile, -1, -1, 0);
let istream = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(Ci.nsIStringInputStream);
istream.setData(data, data.length);
NetUtil.asyncCopy(istream, ostream, function(aResult) {
if (!Components.isSuccessCode(aResult)) {
console.log("Error writing default prefs: " + aResult);
}
});
}
},
openURL: function openURL(aURI, aOrigin) {
sendMessageToJava({
gecko: {
type: "WebApps:Open",
uri: aURI,
origin: aOrigin
}
});
},
makeBase64Icon: function loadAndMakeBase64Icon(aIconURL, aCallbackFunction) {
// The images are 64px, but Android will resize as needed.
// Bigger is better than too small.
const kIconSize = 64;
let canvas = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
canvas.width = canvas.height = kIconSize;
let ctx = canvas.getContext("2d");
let favicon = new Image();
favicon.onload = function() {
ctx.drawImage(favicon, 0, 0, kIconSize, kIconSize);
let base64icon = canvas.toDataURL("image/png", "");
canvas = null;
aCallbackFunction.call(null, base64icon);
};
favicon.onerror = function() {
Cu.reportError("CreateShortcut: favicon image load error");
// if the image failed to load, and it was not our default icon, attempt to
// use our default as a fallback
let uri = Services.io.newURI(favicon.src, null, null);
if (!/^chrome$/.test(uri.scheme)) {
favicon.src = WebappsUI.getBiggestIcon(null);
}
};
favicon.src = aIconURL;
},
createShortcut: function createShortcut(aTitle, aURL, aIconURL, aType) {
this.makeBase64Icon(aIconURL, function _createShortcut(icon) {
try {
let shell = Cc["@mozilla.org/browser/shell-service;1"].createInstance(Ci.nsIShellService);
shell.createShortcut(aTitle, aURL, icon, aType);
} catch(e) {
Cu.reportError(e);
}
});
}
}
var RemoteDebugger = {
init: function rd_init() {
Services.prefs.addObserver("devtools.debugger.", this, false);
if (this._isEnabled())
this._start();
},
observe: function rd_observe(aSubject, aTopic, aData) {
if (aTopic != "nsPref:changed")
return;
switch (aData) {
case "devtools.debugger.remote-enabled":
if (this._isEnabled())
this._start();
else
this._stop();
break;
case "devtools.debugger.remote-port":
if (this._isEnabled())
this._restart();
break;
}
},
uninit: function rd_uninit() {
Services.prefs.removeObserver("devtools.debugger.", this);
this._stop();
},
_getPort: function _rd_getPort() {
return Services.prefs.getIntPref("devtools.debugger.remote-port");
},
_isEnabled: function rd_isEnabled() {
return Services.prefs.getBoolPref("devtools.debugger.remote-enabled");
},
/**
* Prompt the user to accept or decline the incoming connection.
*
* @return true if the connection should be permitted, false otherwise
*/
_allowConnection: function rd_allowConnection() {
let title = Strings.browser.GetStringFromName("remoteIncomingPromptTitle");
let msg = Strings.browser.GetStringFromName("remoteIncomingPromptMessage");
let btn = Strings.browser.GetStringFromName("remoteIncomingPromptDisable");
let prompt = Services.prompt;
let flags = prompt.BUTTON_POS_0 * prompt.BUTTON_TITLE_OK +
prompt.BUTTON_POS_1 * prompt.BUTTON_TITLE_CANCEL +
prompt.BUTTON_POS_2 * prompt.BUTTON_TITLE_IS_STRING +
prompt.BUTTON_POS_1_DEFAULT;
let result = prompt.confirmEx(null, title, msg, flags, null, null, btn, null, { value: false });
if (result == 0)
return true;
if (result == 2) {
this._stop();
Services.prefs.setBoolPref("devtools.debugger.remote-enabled", false);
}
return false;
},
_restart: function rd_restart() {
this._stop();
this._start();
},
_start: function rd_start() {
try {
if (!DebuggerServer.initialized) {
DebuggerServer.init(this._allowConnection);
DebuggerServer.addBrowserActors();
DebuggerServer.addActors("chrome://browser/content/dbg-browser-actors.js");
}
let port = this._getPort();
DebuggerServer.openListener(port);
dump("Remote debugger listening on port " + port);
} catch(e) {
dump("Remote debugger didn't start: " + e);
}
},
_stop: function rd_start() {
DebuggerServer.closeListener();
dump("Remote debugger stopped");
}
};
var Telemetry = {
_PREF_TELEMETRY_PROMPTED: "toolkit.telemetry.prompted",
_PREF_TELEMETRY_ENABLED: "toolkit.telemetry.enabled",
_PREF_TELEMETRY_REJECTED: "toolkit.telemetry.rejected",
_PREF_TELEMETRY_SERVER_OWNER: "toolkit.telemetry.server_owner",
// This is used to reprompt users when privacy message changes
_TELEMETRY_PROMPT_REV: 2,
init: function init() {
Services.obs.addObserver(this, "Preferences:Set", false);
Services.obs.addObserver(this, "Telemetry:Add", false);
},
uninit: function uninit() {
Services.obs.removeObserver(this, "Preferences:Set");
Services.obs.removeObserver(this, "Telemetry:Add");
},
observe: function observe(aSubject, aTopic, aData) {
if (aTopic == "Preferences:Set") {
// if user changes telemetry pref, treat it like they have been prompted
let pref = JSON.parse(aData);
if (pref.name == this._PREF_TELEMETRY_ENABLED)
Services.prefs.setIntPref(this._PREF_TELEMETRY_PROMPTED, this._TELEMETRY_PROMPT_REV);
} else if (aTopic == "Telemetry:Add") {
let json = JSON.parse(aData);
var telemetry = Cc["@mozilla.org/base/telemetry;1"].getService(Ci.nsITelemetry);
let histogram = telemetry.getHistogramById(json.name);
histogram.add(json.value);
}
},
prompt: function prompt() {
let serverOwner = Services.prefs.getCharPref(this._PREF_TELEMETRY_SERVER_OWNER);
let telemetryPrompted = null;
let self = this;
try {
telemetryPrompted = Services.prefs.getIntPref(this._PREF_TELEMETRY_PROMPTED);
} catch (e) { /* Optional */ }
// If the user has seen the latest telemetry prompt, do not prompt again
// else clear old prefs and reprompt
if (telemetryPrompted === this._TELEMETRY_PROMPT_REV)
return;
Services.prefs.clearUserPref(this._PREF_TELEMETRY_PROMPTED);
Services.prefs.clearUserPref(this._PREF_TELEMETRY_ENABLED);
let buttons = [
{
label: Strings.browser.GetStringFromName("telemetry.optin.yes"),
callback: function () {
Services.prefs.setIntPref(self._PREF_TELEMETRY_PROMPTED, self._TELEMETRY_PROMPT_REV);
Services.prefs.setBoolPref(self._PREF_TELEMETRY_ENABLED, true);
}
},
{
label: Strings.browser.GetStringFromName("telemetry.optin.no"),
callback: function () {
Services.prefs.setIntPref(self._PREF_TELEMETRY_PROMPTED, self._TELEMETRY_PROMPT_REV);
Services.prefs.setBoolPref(self._PREF_TELEMETRY_REJECTED, true);
}
}
];
let brandShortName = Strings.brand.GetStringFromName("brandShortName");
let message = Strings.browser.formatStringFromName("telemetry.optin.message2", [serverOwner, brandShortName], 2);
let learnMoreLabel = Strings.browser.GetStringFromName("telemetry.optin.learnMore");
let learnMoreUrl = Services.urlFormatter.formatURLPref("app.support.baseURL");
learnMoreUrl += "how-can-i-help-submitting-performance-data";
let options = {
link: {
label: learnMoreLabel,
url: learnMoreUrl
},
// We're adding this doorhanger during startup, before the initial onLocationChange
// event fires, so we need to set persistence to make sure it doesn't disappear.
persistence: 1
};
NativeWindow.doorhanger.show(message, "telemetry-optin", buttons, BrowserApp.selectedTab.id, options);
},
};
let Reader = {
// Version of the cache database schema
DB_VERSION: 1,
DEBUG: 1,
init: function Reader_init() {
this.log("Init()");
this._requests = {};
Services.obs.addObserver(this, "Reader:Add", false);
Services.obs.addObserver(this, "Reader:Remove", false);
},
observe: function(aMessage, aTopic, aData) {
switch(aTopic) {
case "Reader:Add": {
let tab = BrowserApp.getTabForId(aData);
let url = tab.browser.contentWindow.location.href;
let sendResult = function(success, title) {
this.log("Reader:Add success=" + success + ", url=" + url + ", title=" + title);
sendMessageToJava({
gecko: {
type: "Reader:Added",
success: success,
title: title,
url: url,
}
});
}.bind(this);
this.parseDocumentFromTab(aData, function(article) {
if (!article) {
sendResult(false, "");
return;
}
this.storeArticleInCache(article, function(success) {
sendResult(success, article.title);
});
}.bind(this));
break;
}
case "Reader:Remove": {
this.removeArticleFromCache(aData, function(success) {
this.log("Reader:Remove success=" + success + ", url=" + aData);
}.bind(this));
break;
}
}
},
parseDocumentFromURL: function Reader_parseDocumentFromURL(url, callback) {
// If there's an on-going request for the same URL, simply append one
// more callback to it to be called when the request is done.
if (url in this._requests) {
let request = this._requests[url];
request.callbacks.push(callback);
return;
}
let request = { url: url, callbacks: [callback] };
this._requests[url] = request;
try {
this.log("parseDocumentFromURL: " + url);
// First, try to find a cached parsed article in the DB
this.getArticleFromCache(url, function(article) {
if (article) {
this.log("Page found in cache, return article immediately");
this._runCallbacksAndFinish(request, article);
return;
}
if (!this._requests) {
this.log("Reader has been destroyed, abort");
return;
}
// Article hasn't been found in the cache DB, we need to
// download the page and parse the article out of it.
this._downloadAndParseDocument(url, request);
}.bind(this));
} catch (e) {
this.log("Error parsing document from URL: " + e);
this._runCallbacksAndFinish(request, null);
}
},
parseDocumentFromTab: function(tabId, callback) {
try {
this.log("parseDocumentFromTab: " + tabId);
let tab = BrowserApp.getTabForId(tabId);
let url = tab.browser.contentWindow.location.href;
let uri = Services.io.newURI(url, null, null);
if (!(uri.schemeIs("http") || uri.schemeIs("https") || uri.schemeIs("file"))) {
this.log("Not parsing URI scheme: " + uri.scheme);
callback(null);
return;
}
// First, try to find a cached parsed article in the DB
this.getArticleFromCache(url, function(article) {
if (article) {
this.log("Page found in cache, return article immediately");
callback(article);
return;
}
let doc = tab.browser.contentWindow.document;
let readability = new Readability(uri, doc);
readability.parse(function (article) {
if (!article) {
this.log("Failed to parse page");
callback(null);
return;
}
// Append URL to the article data
article.url = url;
callback(article);
}.bind(this));
}.bind(this));
} catch (e) {
this.log("Error parsing document from tab: " + e);
callback(null);
}
},
getArticleFromCache: function Reader_getArticleFromCache(url, callback) {
this._getCacheDB(function(cacheDB) {
if (!cacheDB) {
callback(false);
return;
}
let transaction = cacheDB.transaction(cacheDB.objectStoreNames);
let articles = transaction.objectStore(cacheDB.objectStoreNames[0]);
let request = articles.get(url);
request.onerror = function(event) {
this.log("Error getting article from the cache DB: " + url);
callback(null);
}.bind(this);
request.onsuccess = function(event) {
this.log("Got article from the cache DB: " + event.target.result);
callback(event.target.result);
}.bind(this);
}.bind(this));
},
storeArticleInCache: function Reader_storeArticleInCache(article, callback) {
this._getCacheDB(function(cacheDB) {
if (!cacheDB) {
callback(false);
return;
}
let transaction = cacheDB.transaction(cacheDB.objectStoreNames, "readwrite");
let articles = transaction.objectStore(cacheDB.objectStoreNames[0]);
let request = articles.add(article);
request.onerror = function(event) {
this.log("Error storing article in the cache DB: " + article.url);
callback(false);
}.bind(this);
request.onsuccess = function(event) {
this.log("Stored article in the cache DB: " + article.url);
callback(true);
}.bind(this);
}.bind(this));
},
removeArticleFromCache: function Reader_removeArticleFromCache(url, callback) {
this._getCacheDB(function(cacheDB) {
if (!cacheDB) {
callback(false);
return;
}
let transaction = cacheDB.transaction(cacheDB.objectStoreNames, "readwrite");
let articles = transaction.objectStore(cacheDB.objectStoreNames[0]);
let request = articles.delete(url);
request.onerror = function(event) {
this.log("Error removing article from the cache DB: " + url);
callback(false);
}.bind(this);
request.onsuccess = function(event) {
this.log("Removed article from the cache DB: " + url);
callback(true);
}.bind(this);
}.bind(this));
},
uninit: function Reader_uninit() {
Services.obs.removeObserver(this, "Reader:Add", false);
Services.obs.removeObserver(this, "Reader:Remove", false);
let requests = this._requests;
for (let url in requests) {
let request = requests[url];
if (request.browser) {
let browser = request.browser;
browser.parentNode.removeChild(browser);
}
}
delete this._requests;
if (this._cacheDB) {
this._cacheDB.close();
delete this._cacheDB;
}
},
log: function(msg) {
if (this.DEBUG)
dump("Reader: " + msg);
},
_runCallbacksAndFinish: function Reader_runCallbacksAndFinish(request, result) {
delete this._requests[request.url];
request.callbacks.forEach(function(callback) {
callback(result);
});
},
_downloadDocument: function Reader_downloadDocument(url, callback) {
// We want to parse those arbitrary pages safely, outside the privileged
// context of chrome. We create a hidden browser element to fetch the
// loaded page's document object then discard the browser element.
let browser = document.createElement("browser");
browser.setAttribute("type", "content");
browser.setAttribute("collapsed", "true");
document.documentElement.appendChild(browser);
browser.stop();
browser.webNavigation.allowAuth = false;
browser.webNavigation.allowImages = false;
browser.webNavigation.allowJavascript = false;
browser.webNavigation.allowMetaRedirects = true;
browser.webNavigation.allowPlugins = false;
browser.addEventListener("DOMContentLoaded", function (event) {
let doc = event.originalTarget;
this.log("Done loading: " + doc);
if (doc.location.href == "about:blank" || doc.defaultView.frameElement) {
callback(null);
// Request has finished with error, remove browser element
browser.parentNode.removeChild(browser);
return;
}
callback(doc);
}.bind(this));
browser.loadURIWithFlags(url, Ci.nsIWebNavigation.LOAD_FLAGS_NONE,
null, null, null);
return browser;
},
_downloadAndParseDocument: function Reader_downloadAndParseDocument(url, request) {
try {
this.log("Needs to fetch page, creating request: " + url);
request.browser = this._downloadDocument(url, function(doc) {
this.log("Finished loading page: " + doc);
if (!doc) {
this.log("Error loading page");
this._runCallbacksAndFinish(request, null);
return;
}
this.log("Parsing response with Readability");
let uri = Services.io.newURI(url, null, null);
let readability = new Readability(uri, doc);
readability.parse(function (article) {
// Delete reference to the browser element as we've finished parsing.
let browser = request.browser;
if (browser) {
browser.parentNode.removeChild(browser);
delete request.browser;
}
if (!article) {
this.log("Failed to parse page");
this._runCallbacksAndFinish(request, null);
return;
}
this.log("Parsing has been successful");
// Append URL to the article data
article.url = url;
this._runCallbacksAndFinish(request, article);
}.bind(this));
}.bind(this));
} catch (e) {
this.log("Error downloading and parsing document: " + e);
this._runCallbacksAndFinish(request, null);
}
},
_getCacheDB: function Reader_getCacheDB(callback) {
if (this._cacheDB) {
callback(this._cacheDB);
return;
}
let request = window.indexedDB.open("about:reader", this.DB_VERSION);
request.onerror = function(event) {
this.log("Error connecting to the cache DB");
this._cacheDB = null;
callback(null);
}.bind(this);
request.onsuccess = function(event) {
this.log("Successfully connected to the cache DB");
this._cacheDB = event.target.result;
callback(this._cacheDB);
}.bind(this);
request.onupgradeneeded = function(event) {
this.log("Database schema upgrade from " +
event.oldVersion + " to " + event.newVersion);
let cacheDB = event.target.result;
// Create the articles object store
this.log("Creating articles object store");
cacheDB.createObjectStore("articles", { keyPath: "url" });
this.log("Database upgrade done: " + this.DB_VERSION);
}.bind(this);
}
};
var ExternalApps = {
_contextMenuId: -1,
init: function helper_init() {
this._contextMenuId = NativeWindow.contextmenus.add(function(aElement) {
let uri = null;
var node = aElement;
while (node && !uri) {
uri = NativeWindow.contextmenus._getLink(node);
node = node.parentNode;
}
let apps = [];
if (uri)
apps = HelperApps.getAppsForUri(uri);
return apps.length == 1 ? Strings.browser.formatStringFromName("helperapps.openWithApp2", [apps[0].name], 1) :
Strings.browser.GetStringFromName("helperapps.openWithList2");
}, this.filter, this.openExternal);
},
uninit: function helper_uninit() {
NativeWindow.contextmenus.remove(this._contextMenuId);
},
filter: {
matches: function(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
let apps = [];
if (uri) {
apps = HelperApps.getAppsForUri(uri);
}
return apps.length > 0;
}
},
openExternal: function(aElement) {
let uri = NativeWindow.contextmenus._getLink(aElement);
HelperApps.openUriInApp(uri);
}
}