Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-30 05:35:31 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
5c4e387bfa
gecko-dev/mobile/xul/chrome/content/browser.js

3374 lines
116 KiB
JavaScript
Raw Blame History

// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Mobile Browser.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brad Lassey <blassey@mozilla.com>
* Mark Finkle <mfinkle@mozilla.com>
* Aleks Totic <a@totic.org>
* Johnathan Nightingale <johnath@mozilla.com>
* Stuart Parmenter <stuart@mozilla.com>
* Taras Glek <tglek@mozilla.com>
* Roy Frostig <rfrostig@mozilla.com>
* Ben Combee <bcombee@mozilla.com>
* Matt Brubeck <mbrubeck@mozilla.com>
* Benjamin Stover <bstover@mozilla.com>
* Miika Jarvinen <mjarvin@gmail.com>
* Jaakko Kiviluoto <jaakko.kiviluoto@digia.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
let Cc = Components.classes;
let Ci = Components.interfaces;
let Cu = Components.utils;
let Cr = Components.results;
#ifdef ANDROID
function getBridge() {
return Cc["@mozilla.org/android/bridge;1"].getService(Ci.nsIAndroidBridge);
}
function sendMessageToJava(aMessage) {
return getBridge().handleGeckoMessage(JSON.stringify(aMessage));
}
#endif
function getBrowser() {
return Browser.selectedBrowser;
}
const kBrowserViewZoomLevelPrecision = 10000;
// allow panning after this timeout on pages with registered touch listeners
const kTouchTimeout = 300;
const kSetInactiveStateTimeout = 100;
const kDefaultMetadata = { autoSize: false, allowZoom: true, autoScale: true };
// Override sizeToContent in the main window. It breaks things (bug 565887)
window.sizeToContent = function() {
Cu.reportError("window.sizeToContent is not allowed in this window");
}
#ifdef MOZ_CRASHREPORTER
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "CrashReporter",
"@mozilla.org/xre/app-info;1", "nsICrashReporter");
#endif
function onDebugKeyPress(aEvent) {
if (!aEvent.ctrlKey)
return;
// prevent the keypress from being triggered twice when page is local - bug 655501
if (aEvent.originalTarget.nodeName == "html")
return;
function doSwipe(aDirection) {
let evt = document.createEvent("SimpleGestureEvent");
evt.initSimpleGestureEvent("MozSwipeGesture", true, true, window, null,
0, 0, 0, 0, false, false, false, false, 0, null,
aDirection, 0);
Browser.selectedTab.inputHandler.dispatchEvent(evt);
}
let nsIDOMKeyEvent = Ci.nsIDOMKeyEvent;
switch (aEvent.charCode) {
case nsIDOMKeyEvent.DOM_VK_A: // Swipe Left
doSwipe(Ci.nsIDOMSimpleGestureEvent.DIRECTION_LEFT);
break;
case nsIDOMKeyEvent.DOM_VK_D: // Swipe Right
doSwipe(Ci.nsIDOMSimpleGestureEvent.DIRECTION_RIGHT);
break;
case nsIDOMKeyEvent.DOM_VK_F: // Forge GC
MemoryObserver.observe();
dump("Forced a GC\n");
break;
case nsIDOMKeyEvent.DOM_VK_M: // Android Menu
CommandUpdater.doCommand("cmd_menu");
break;
#ifndef MOZ_PLATFORM_MAEMO
case nsIDOMKeyEvent.DOM_VK_P: // Fake pinch zoom
function dispatchMagnifyEvent(aName, aDelta) {
let evt = document.createEvent("SimpleGestureEvent");
evt.initSimpleGestureEvent("MozMagnifyGesture" + aName, true, true, window, null,
0, 0, 0, 0, false, false, false, false, 0, null, 0, aDelta);
Browser.selectedTab.inputHandler.dispatchEvent(evt);
}
dispatchMagnifyEvent("Start", 0);
let frame = 0;
let timer = new Util.Timeout();
timer.interval(100, function() {
dispatchMagnifyEvent("Update", 20);
if (++frame > 10) {
timer.clear();
dispatchMagnifyEvent("", frame*20);
}
});
break;
case nsIDOMKeyEvent.DOM_VK_Q: // Toggle Orientation
if (Util.isPortrait())
window.top.resizeTo(800,480);
else
window.top.resizeTo(480,800);
break;
#endif
case nsIDOMKeyEvent.DOM_VK_S: // Swipe down
doSwipe(Ci.nsIDOMSimpleGestureEvent.DIRECTION_DOWN);
break;
case nsIDOMKeyEvent.DOM_VK_W: // Swipe up
doSwipe(Ci.nsIDOMSimpleGestureEvent.DIRECTION_UP);
break;
default:
break;
}
}
var Browser = {
_tabs: [],
_selectedTab: null,
windowUtils: window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils),
controlsScrollbox: null,
controlsScrollboxScroller: null,
controlsPosition: null,
pageScrollbox: null,
pageScrollboxScroller: null,
styles: {},
get defaultBrowserWidth() {
delete this.defaultBrowserWidth;
var width = Services.prefs.getIntPref("browser.viewport.desktopWidth");
this.defaultBrowserWidth = width;
return width;
},
startup: function startup() {
var self = this;
#ifdef ANDROID
sendMessageToJava({
gecko: {
type: "Gecko:Ready"
}
});
#endif
try {
messageManager.loadFrameScript("chrome://browser/content/Util.js", true);
messageManager.loadFrameScript("chrome://browser/content/forms.js", true);
messageManager.loadFrameScript("chrome://browser/content/content.js", true);
} catch (e) {
// XXX whatever is calling startup needs to dump errors!
dump("###########" + e + "\n");
}
// XXX change
/* handles dispatching clicks on browser into clicks in content or zooms */
Elements.browsers.customDragger = new Browser.MainDragger();
/* handles web progress management for open browsers */
Elements.browsers.webProgress = new Browser.WebProgress();
this.keyFilter = new KeyFilter(Elements.browsers);
let mouseModule = new MouseModule();
let gestureModule = new GestureModule(Elements.browsers);
let scrollWheelModule = new ScrollwheelModule(Elements.browsers);
ContentTouchHandler.init();
// Warning, total hack ahead. All of the real-browser related scrolling code
// lies in a pretend scrollbox here. Let's not land this as-is. Maybe it's time
// to redo all the dragging code.
this.contentScrollbox = Elements.browsers;
this.contentScrollboxScroller = {
scrollBy: function(aDx, aDy) {
let view = getBrowser().getRootView();
view.scrollBy(aDx, aDy);
},
scrollTo: function(aX, aY) {
let view = getBrowser().getRootView();
view.scrollTo(aX, aY);
},
getPosition: function(aScrollX, aScrollY) {
let view = getBrowser().getRootView();
let scroll = view.getPosition();
aScrollX.value = scroll.x;
aScrollY.value = scroll.y;
}
};
/* horizontally scrolling box that holds the sidebars as well as the contentScrollbox */
let controlsScrollbox = this.controlsScrollbox = document.getElementById("controls-scrollbox");
this.controlsScrollboxScroller = controlsScrollbox.boxObject.QueryInterface(Ci.nsIScrollBoxObject);
controlsScrollbox.customDragger = {
isDraggable: function isDraggable(target, content) { return {}; },
dragStart: function dragStart(cx, cy, target, scroller) {},
dragStop: function dragStop(dx, dy, scroller) { return false; },
dragMove: function dragMove(dx, dy, scroller) { return false; }
};
/* vertically scrolling box that contains the url bar, notifications, and content */
let pageScrollbox = this.pageScrollbox = document.getElementById("page-scrollbox");
this.pageScrollboxScroller = pageScrollbox.boxObject.QueryInterface(Ci.nsIScrollBoxObject);
pageScrollbox.customDragger = controlsScrollbox.customDragger;
let stylesheet = document.styleSheets[0];
for each (let style in ["window-width", "window-height", "viewable-height", "viewable-width", "toolbar-height"]) {
let index = stylesheet.insertRule("." + style + " {}", stylesheet.cssRules.length);
this.styles[style] = stylesheet.cssRules[index].style;
}
// Saved the scrolls values before the resizing of the window, to restore
// the scrollbox position once the resize has finished.
// The last parameter of addEventListener is true to be sure we performed
// the computation before something else could happened (bug 622121)
window.addEventListener("MozBeforeResize", function(aEvent) {
if (aEvent.target != window)
return;
let { x: x1, y: y1 } = Browser.getScrollboxPosition(Browser.controlsScrollboxScroller);
let { x: x2, y: y2 } = Browser.getScrollboxPosition(Browser.pageScrollboxScroller);
let [,, leftWidth, rightWidth] = Browser.computeSidebarVisibility();
// hiddenSidebars counts how many times resizeHandler has called hideSidebars
let hiddenSidebars = Browser.controlsPosition ? Browser.controlsPosition.hiddenSidebars : 0;
Browser.controlsPosition = { x: x1, y: y2, hiddenSidebars: hiddenSidebars,
leftSidebar: leftWidth, rightSidebar: rightWidth };
}, true);
function resizeHandler(e) {
if (e.target != window)
return;
let w = window.innerWidth;
let h = window.innerHeight;
// Don't bother doing unuseful work during intermediate resized during
// startup if the goal is to be fullscreen
let fullscreen = (document.documentElement.getAttribute("sizemode") == "fullscreen");
if (fullscreen && w != screen.width)
return;
BrowserUI.updateTabletLayout();
let toolbarHeight = Math.round(document.getElementById("toolbar-main").getBoundingClientRect().height);
Browser.styles["window-width"].width = w + "px";
Browser.styles["window-height"].height = h + "px";
Browser.styles["toolbar-height"].height = toolbarHeight + "px";
// Tell the UI to resize the browser controls
BrowserUI.sizeControls(w, h);
ViewableAreaObserver.update();
// Restore the previous scroll position
let restorePosition = Browser.controlsPosition || { hiddenSidebars: 0 };
// HACK: The first time we hide the sidebars during startup might be too
// early, before layout is completed. Make sure to hide the sidebars on
// the first *two* resize events (bug 691541).
if (restorePosition.hiddenSidebars < 2) {
// Since this happens early in the startup process, we need to make sure
// the UI has really responded
let x = {}, y = {};
Browser.hideSidebars();
Browser.controlsScrollboxScroller.getPosition(x, y);
if (x.value > 0) {
// Update the control position data so we are set correctly for the next resize
restorePosition.hiddenSidebars++;
restorePosition.x = x.value;
}
} else {
// Handle Width transformation of the tabs sidebar
if (restorePosition.x) {
let [,, leftWidth, rightWidth] = Browser.computeSidebarVisibility();
let delta = ((restorePosition.leftSidebar - leftWidth) || (restorePosition.rightSidebar - rightWidth));
restorePosition.x += (restorePosition.x == leftWidth) ? delta : -delta;
}
Browser.controlsScrollboxScroller.scrollTo(restorePosition.x, 0);
Browser.pageScrollboxScroller.scrollTo(0, restorePosition.y);
Browser.tryFloatToolbar(0, 0);
}
// We want to keep the current focused element into view if possible
let currentElement = document.activeElement;
let [scrollbox, scrollInterface] = ScrollUtils.getScrollboxFromElement(currentElement);
if (scrollbox && scrollInterface && currentElement && currentElement != scrollbox) {
// retrieve the direct child of the scrollbox
while (currentElement.parentNode != scrollbox)
currentElement = currentElement.parentNode;
setTimeout(function() { scrollInterface.ensureElementIsVisible(currentElement) }, 0);
}
}
window.addEventListener("resize", resizeHandler, false);
window.addEventListener("AlertActive", this._alertShown.bind(this), false);
function fullscreenHandler() {
if (!window.fullScreen)
document.getElementById("toolbar-main").setAttribute("fullscreen", "true");
else
document.getElementById("toolbar-main").removeAttribute("fullscreen");
}
window.addEventListener("fullscreen", fullscreenHandler, false);
BrowserUI.init();
window.controllers.appendController(this);
window.controllers.appendController(BrowserUI);
var os = Services.obs;
os.addObserver(XPInstallObserver, "addon-install-blocked", false);
os.addObserver(XPInstallObserver, "addon-install-started", false);
os.addObserver(SessionHistoryObserver, "browser:purge-session-history", false);
os.addObserver(ContentCrashObserver, "ipc:content-shutdown", false);
os.addObserver(MemoryObserver, "memory-pressure", false);
#ifndef ANDROID
// Disabled on Android because of bug 712517
os.addObserver(ActivityObserver, "application-background", false);
os.addObserver(ActivityObserver, "application-foreground", false);
os.addObserver(ActivityObserver, "system-active", false);
os.addObserver(ActivityObserver, "system-idle", false);
os.addObserver(ActivityObserver, "system-display-on", false);
os.addObserver(ActivityObserver, "system-display-off", false);
#endif
// Listens for change in the viewable area
#if MOZ_PLATFORM_MAEMO == 6
os.addObserver(ViewableAreaObserver, "softkb-change", false);
#endif
window.QueryInterface(Ci.nsIDOMChromeWindow).browserDOMWindow = new nsBrowserAccess();
Elements.browsers.addEventListener("DOMUpdatePageReport", PopupBlockerObserver.onUpdatePageReport, false);
// Make sure we're online before attempting to load
Util.forceOnline();
// If this is an intial window launch the commandline handler passes us the default
// page as an argument. commandURL _should_ never be empty, but we protect against it
// below. However, we delay trying to get the fallback homepage until we really need it.
let commandURL = null;
if (window.arguments && window.arguments[0])
commandURL = window.arguments[0];
// Should we restore the previous session (crash or some other event)
let ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
if (ss.shouldRestore()) {
let bringFront = false;
// First open any commandline URLs, except the homepage
if (commandURL && commandURL != this.getHomePage()) {
this.addTab(commandURL, true);
} else {
bringFront = true;
// Initial window resizes call functions that assume a tab is in the tab list
// and restored tabs are added too late. We add a dummy to to satisfy the resize
// code and then remove the dummy after the session has been restored.
let dummy = this.addTab("about:blank", true);
let dummyCleanup = {
observe: function(aSubject, aTopic, aData) {
Services.obs.removeObserver(dummyCleanup, "sessionstore-windows-restored");
if (aData == "fail")
Browser.addTab(commandURL || Browser.getHomePage(), true);
dummy.chromeTab.ignoreUndo = true;
Browser.closeTab(dummy, { forceClose: true });
}
};
Services.obs.addObserver(dummyCleanup, "sessionstore-windows-restored", false);
}
ss.restoreLastSession(bringFront);
} else {
this.addTab(commandURL || this.getHomePage(), true);
}
messageManager.addMessageListener("MozScrolledAreaChanged", this);
messageManager.addMessageListener("Browser:ViewportMetadata", this);
messageManager.addMessageListener("Browser:CanCaptureMouse:Return", this);
messageManager.addMessageListener("Browser:FormSubmit", this);
messageManager.addMessageListener("Browser:KeyPress", this);
messageManager.addMessageListener("Browser:ZoomToPoint:Return", this);
messageManager.addMessageListener("Browser:CanUnload:Return", this);
messageManager.addMessageListener("scroll", this);
messageManager.addMessageListener("Browser:CertException", this);
messageManager.addMessageListener("Browser:BlockedSite", this);
messageManager.addMessageListener("Browser:ErrorPage", this);
messageManager.addMessageListener("Browser:PluginClickToPlayClicked", this);
// 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);
},
_alertShown: function _alertShown() {
// ensure that the full notification still visible, even if the urlbar is floating
if (BrowserUI.isToolbarLocked())
Browser.pageScrollboxScroller.scrollTo(0, 0);
},
quit: function quit() {
// NOTE: onclose seems to be called only when using OS chrome to close a window,
// so we need to handle the Browser.closing check ourselves.
if (this.closing()) {
window.QueryInterface(Ci.nsIDOMChromeWindow).minimize();
window.close();
}
},
_waitingToClose: false,
closing: function closing() {
// If we are already waiting for the close prompt, don't show another
if (this._waitingToClose)
return false;
// Prompt if we have multiple tabs before closing window
let numTabs = this._tabs.length;
if (numTabs > 1) {
let shouldPrompt = Services.prefs.getBoolPref("browser.tabs.warnOnClose");
if (shouldPrompt) {
let prompt = Services.prompt;
// Default to true: if it were false, we wouldn't get this far
let warnOnClose = { value: true };
let messageBase = Strings.browser.GetStringFromName("tabs.closeWarning");
let message = PluralForm.get(numTabs, messageBase).replace("#1", numTabs);
let title = Strings.browser.GetStringFromName("tabs.closeWarningTitle");
let closeText = Strings.browser.GetStringFromName("tabs.closeButton");
let checkText = Strings.browser.GetStringFromName("tabs.closeWarningPromptMe");
let buttons = (prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_0) +
(prompt.BUTTON_TITLE_CANCEL * prompt.BUTTON_POS_1);
this._waitingToClose = true;
#ifdef MOZ_PLATFORM_MAEMO
window.QueryInterface(Ci.nsIDOMChromeWindow).restore();
#endif
let pressed = prompt.confirmEx(window, title, message, buttons, closeText, null, null, checkText, warnOnClose);
this._waitingToClose = false;
// Don't set the pref unless they press OK and it's false
let reallyClose = (pressed == 0);
if (reallyClose && !warnOnClose.value)
Services.prefs.setBoolPref("browser.tabs.warnOnClose", false);
// If we don't want to close, return now. If we are closing, continue with other housekeeping.
if (!reallyClose)
return false;
}
}
// 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)
return true;
// Let everyone know we are closing the last browser window
let closingCancelled = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
Services.obs.notifyObservers(closingCancelled, "browser-lastwindow-close-requested", null);
if (closingCancelled.data)
return false;
Services.obs.notifyObservers(null, "browser-lastwindow-close-granted", null);
return true;
},
shutdown: function shutdown() {
BrowserUI.uninit();
messageManager.removeMessageListener("MozScrolledAreaChanged", this);
messageManager.removeMessageListener("Browser:ViewportMetadata", this);
messageManager.removeMessageListener("Browser:FormSubmit", this);
messageManager.removeMessageListener("Browser:KeyPress", this);
messageManager.removeMessageListener("Browser:ZoomToPoint:Return", this);
messageManager.removeMessageListener("scroll", this);
messageManager.removeMessageListener("Browser:CertException", this);
messageManager.removeMessageListener("Browser:BlockedSite", this);
messageManager.removeMessageListener("Browser:ErrorPage", this);
messageManager.removeMessageListener("Browser:PluginClickToPlayClicked", this);
var os = Services.obs;
os.removeObserver(XPInstallObserver, "addon-install-blocked");
os.removeObserver(XPInstallObserver, "addon-install-started");
os.removeObserver(SessionHistoryObserver, "browser:purge-session-history");
os.removeObserver(ContentCrashObserver, "ipc:content-shutdown");
os.removeObserver(MemoryObserver, "memory-pressure");
#ifndef ANDROID
// Disabled on Android because of bug 712517
os.removeObserver(ActivityObserver, "application-background", false);
os.removeObserver(ActivityObserver, "application-foreground", false);
os.removeObserver(ActivityObserver, "system-active", false);
os.removeObserver(ActivityObserver, "system-idle", false);
os.removeObserver(ActivityObserver, "system-display-on", false);
os.removeObserver(ActivityObserver, "system-display-off", false);
#endif
window.controllers.removeController(this);
window.controllers.removeController(BrowserUI);
},
getHomePage: function getHomePage(aOptions) {
aOptions = aOptions || { useDefault: false };
let url = "about:home";
try {
let prefs = aOptions.useDefault ? Services.prefs.getDefaultBranch(null) : Services.prefs;
url = prefs.getComplexValue("browser.startup.homepage", Ci.nsIPrefLocalizedString).data;
}
catch(e) { }
return url;
},
get browsers() {
return this._tabs.map(function(tab) { return tab.browser; });
},
scrollContentToTop: function scrollContentToTop(aOptions) {
let x = {}, y = {};
this.contentScrollboxScroller.getPosition(x, y);
if (aOptions)
x.value = ("x" in aOptions ? aOptions.x : x.value);
this.contentScrollboxScroller.scrollTo(x.value, 0);
this.pageScrollboxScroller.scrollTo(0, 0);
},
// cmd_scrollBottom does not work in Fennec (Bug 590535).
scrollContentToBottom: function scrollContentToBottom(aOptions) {
let x = {}, y = {};
this.contentScrollboxScroller.getPosition(x, y);
if (aOptions)
x.value = ("x" in aOptions ? aOptions.x : x.value);
this.contentScrollboxScroller.scrollTo(x.value, Number.MAX_VALUE);
this.pageScrollboxScroller.scrollTo(0, Number.MAX_VALUE);
this.hideTitlebar();
},
hideSidebars: function scrollSidebarsOffscreen() {
if (Util.isTablet()) // Never scroll the sidebar away in tablet mode.
return;
let rect = Elements.browsers.getBoundingClientRect();
this.controlsScrollboxScroller.scrollBy(Math.round(rect.left), 0);
this.tryUnfloatToolbar();
},
/** Workaround to hide the tabstrip if it is partially visible (bug 524469 and bug 626660) */
hidePartialTabSidebar: function hidePartialSidebars() {
let [tabsVisibility,,,] = this.computeSidebarVisibility();
if (tabsVisibility > 0.0 && tabsVisibility < 1.0)
this.hideSidebars();
},
hideTitlebar: function hideTitlebar() {
let rect = Elements.browsers.getBoundingClientRect();
this.pageScrollboxScroller.scrollBy(0, Math.round(rect.top));
this.tryUnfloatToolbar();
},
/**
* Load a URI in the current tab, or a new tab if necessary.
* @param aURI String
* @param aParams Object with optional properties that will be passed to loadURIWithFlags:
* flags, referrerURI, charset, postData.
*/
loadURI: function loadURI(aURI, aParams) {
let browser = this.selectedBrowser;
// We need to keep about: pages opening in new "local" tabs. We also want to spawn
// new "remote" tabs if opening web pages from a "local" about: page.
let currentURI = browser.currentURI.spec;
let useLocal = Util.isLocalScheme(aURI);
let hasLocal = Util.isLocalScheme(currentURI);
if (hasLocal != useLocal) {
let oldTab = this.selectedTab;
// Add new tab before closing the old one, in case there is only one.
Browser.addTab(aURI, true, oldTab, aParams);
if (/^about:(blank|empty)$/.test(currentURI) && !browser.canGoBack && !browser.canGoForward) {
oldTab.chromeTab.ignoreUndo = true;
this.closeTab(oldTab, { forceClose: true });
oldTab = null;
}
} else {
let params = aParams || {};
let flags = params.flags || Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
browser.loadURIWithFlags(aURI, flags, params.referrerURI, params.charset, params.postData);
}
},
/**
* Determine if the given URL is a shortcut/keyword and, if so, expand it
* @param aURL String
* @param aPostDataRef Out param contains any required post data for a search
* @returns the expanded shortcut, or the original URL if not a shortcut
*/
getShortcutOrURI: function getShortcutOrURI(aURL, aPostDataRef) {
let shortcutURL = null;
let keyword = aURL;
let param = "";
let offset = aURL.indexOf(" ");
if (offset > 0) {
keyword = aURL.substr(0, offset);
param = aURL.substr(offset + 1);
}
if (!aPostDataRef)
aPostDataRef = {};
let engine = Services.search.getEngineByAlias(keyword);
if (engine) {
let submission = engine.getSubmission(param);
aPostDataRef.value = submission.postData;
return submission.uri.spec;
}
try {
[shortcutURL, aPostDataRef.value] = PlacesUtils.getURLAndPostDataForKeyword(keyword);
} catch (e) {}
if (!shortcutURL)
return aURL;
let postData = "";
if (aPostDataRef.value)
postData = unescape(aPostDataRef.value);
if (/%s/i.test(shortcutURL) || /%s/i.test(postData)) {
let charset = "";
const re = /^(.*)\&mozcharset=([a-zA-Z][_\-a-zA-Z0-9]+)\s*$/;
let matches = shortcutURL.match(re);
if (matches)
[, shortcutURL, charset] = matches;
else {
// Try to get the saved character-set.
try {
// makeURI throws if URI is invalid.
// Will return an empty string if character-set is not found.
charset = PlacesUtils.history.getCharsetForURI(Util.makeURI(shortcutURL));
} catch (e) { dump("--- error " + e + "\n"); }
}
let encodedParam = "";
if (charset)
encodedParam = escape(convertFromUnicode(charset, param));
else // Default charset is UTF-8
encodedParam = encodeURIComponent(param);
shortcutURL = shortcutURL.replace(/%s/g, encodedParam).replace(/%S/g, param);
if (/%s/i.test(postData)) // POST keyword
aPostDataRef.value = getPostDataStream(postData, param, encodedParam, "application/x-www-form-urlencoded");
} else if (param) {
// This keyword doesn't take a parameter, but one was provided. Just return
// the original URL.
aPostDataRef.value = null;
return aURL;
}
return shortcutURL;
},
/**
* Return the currently active <browser> object
*/
get selectedBrowser() {
return this._selectedTab.browser;
},
get tabs() {
return this._tabs;
},
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;
},
getBrowserForWindowId: function getBrowserForWindowId(aWindowId) {
for (let i = 0; i < this.browsers.length; i++) {
if (this.browsers[i].contentWindowId == aWindowId)
return this.browsers[i];
}
return null;
},
getTabAtIndex: function getTabAtIndex(index) {
if (index > this._tabs.length || index < 0)
return null;
return this._tabs[index];
},
getTabFromChrome: function getTabFromChrome(chromeTab) {
for (var t = 0; t < this._tabs.length; t++) {
if (this._tabs[t].chromeTab == chromeTab)
return this._tabs[t];
}
return null;
},
addTab: function browser_addTab(aURI, aBringFront, aOwner, aParams) {
let params = aParams || {};
let newTab = new Tab(aURI, params);
newTab.owner = aOwner || null;
this._tabs.push(newTab);
if (aBringFront)
this.selectedTab = newTab;
let getAttention = ("getAttention" in params ? params.getAttention : !aBringFront);
let event = document.createEvent("UIEvents");
event.initUIEvent("TabOpen", true, false, window, getAttention);
newTab.chromeTab.dispatchEvent(event);
newTab.browser.messageManager.sendAsyncMessage("Browser:TabOpen");
return newTab;
},
closeTab: function closeTab(aTab, aOptions) {
let tab = aTab instanceof XULElement ? this.getTabFromChrome(aTab) : aTab;
if (!tab || !this._getNextTab(tab))
return;
if (aOptions && "forceClose" in aOptions && aOptions.forceClose) {
this._doCloseTab(aTab);
return;
}
tab.browser.messageManager.sendAsyncMessage("Browser:CanUnload", {});
},
_doCloseTab: function _doCloseTab(aTab) {
let nextTab = this._getNextTab(aTab);
if (!nextTab)
return;
// Make sure we leave the toolbar in an unlocked state
if (aTab == this._selectedTab && aTab.isLoading())
BrowserUI.unlockToolbar();
// Tabs owned by the closed tab are now orphaned.
this._tabs.forEach(function(item, index, array) {
if (item.owner == aTab)
item.owner = null;
});
let event = document.createEvent("Events");
event.initEvent("TabClose", true, false);
aTab.chromeTab.dispatchEvent(event);
aTab.browser.messageManager.sendAsyncMessage("Browser:TabClose");
let container = aTab.chromeTab.parentNode;
aTab.destroy();
this._tabs.splice(this._tabs.indexOf(aTab), 1);
this.selectedTab = nextTab;
event = document.createEvent("Events");
event.initEvent("TabRemove", true, false);
container.dispatchEvent(event);
},
_getNextTab: function _getNextTab(aTab) {
let tabIndex = this._tabs.indexOf(aTab);
if (tabIndex == -1)
return null;
let nextTab = this._selectedTab;
if (nextTab == aTab) {
nextTab = this.getTabAtIndex(tabIndex + 1) || this.getTabAtIndex(tabIndex - 1);
// If the next tab is not a sibling, switch back to the parent.
if (aTab.owner && nextTab.owner != aTab.owner)
nextTab = aTab.owner;
if (!nextTab)
return null;
}
return nextTab;
},
get selectedTab() {
return this._selectedTab;
},
set selectedTab(tab) {
if (tab instanceof XULElement)
tab = this.getTabFromChrome(tab);
if (!tab)
return;
if (this._selectedTab == tab) {
// Deck does not update its selectedIndex when children
// are removed. See bug 602708
Elements.browsers.selectedPanel = tab.notification;
return;
}
if (this._selectedTab) {
this._selectedTab.pageScrollOffset = this.getScrollboxPosition(this.pageScrollboxScroller);
// Make sure we leave the toolbar in an unlocked state
if (this._selectedTab.isLoading())
BrowserUI.unlockToolbar();
}
let isFirstTab = this._selectedTab == null;
let lastTab = this._selectedTab;
let oldBrowser = lastTab ? lastTab._browser : null;
let browser = tab.browser;
this._selectedTab = tab;
// Lock the toolbar if the new tab is still loading
if (this._selectedTab.isLoading())
BrowserUI.lockToolbar();
if (lastTab)
lastTab.active = false;
if (tab)
tab.active = true;
if (isFirstTab) {
// Don't waste time at startup updating the whole UI; just display the URL.
BrowserUI._titleChanged(browser);
} else {
// Update all of our UI to reflect the new tab's location
BrowserUI.updateURI();
getIdentityHandler().checkIdentity();
let event = document.createEvent("Events");
event.initEvent("TabSelect", true, false);
event.lastTab = lastTab;
tab.chromeTab.dispatchEvent(event);
}
tab.lastSelected = Date.now();
if (tab.pageScrollOffset) {
let pageScroll = tab.pageScrollOffset;
Browser.pageScrollboxScroller.scrollTo(pageScroll.x, pageScroll.y);
}
},
supportsCommand: function(cmd) {
var isSupported = false;
switch (cmd) {
case "cmd_fullscreen":
isSupported = true;
break;
default:
isSupported = false;
break;
}
return isSupported;
},
isCommandEnabled: function(cmd) {
return true;
},
doCommand: function(cmd) {
switch (cmd) {
case "cmd_fullscreen":
window.fullScreen = !window.fullScreen;
break;
}
},
getNotificationBox: function getNotificationBox(aBrowser) {
let browser = aBrowser || this.selectedBrowser;
return browser.parentNode;
},
/**
* Handle cert exception message from content.
*/
_handleCertException: function _handleCertException(aMessage) {
let json = aMessage.json;
if (json.action == "leave") {
// Get the start page from the *default* pref branch, not the user's
let url = Browser.getHomePage({ useDefault: true });
this.loadURI(url);
} else {
// Handle setting an cert exception and reloading the page
try {
// Add a new SSL exception for this URL
let uri = Services.io.newURI(json.url, null, null);
let sslExceptions = new SSLExceptions();
if (json.action == "permanent")
sslExceptions.addPermanentException(uri);
else
sslExceptions.addTemporaryException(uri);
} catch (e) {
dump("EXCEPTION handle content command: " + e + "\n" );
}
// Automatically reload after the exception was added
aMessage.target.reload();
}
},
/**
* Handle blocked site message from content.
*/
_handleBlockedSite: function _handleBlockedSite(aMessage) {
let formatter = Cc["@mozilla.org/toolkit/URLFormatterService;1"].getService(Ci.nsIURLFormatter);
let json = aMessage.json;
switch (json.action) {
case "leave": {
// Get the start page from the *default* pref branch, not the user's
let url = Browser.getHomePage({ useDefault: true });
this.loadURI(url);
break;
}
case "report-malware": {
// Get the stop badware "why is this blocked" report url, append the current url, and go there.
try {
let reportURL = formatter.formatURLPref("browser.safebrowsing.malware.reportURL");
reportURL += json.url;
this.loadURI(reportURL);
} catch (e) {
Cu.reportError("Couldn't get malware report URL: " + e);
}
break;
}
case "report-phishing": {
// It's a phishing site, not malware
try {
let reportURL = formatter.formatURLPref("browser.safebrowsing.warning.infoURL");
this.loadURI(reportURL);
} catch (e) {
Cu.reportError("Couldn't get phishing info URL: " + e);
}
break;
}
}
},
/**
* Handle error page message from the content.
*/
_handleErrorPage: function _handleErrorPage(aMessage) {
let tab = this.getTabForBrowser(aMessage.target);
tab.updateThumbnail({ force: true });
},
/**
* Compute the sidebar percentage visibility.
*
* @param [optional] dx
* @param [optional] dy an offset distance at which to perform the visibility
* computation
*/
computeSidebarVisibility: function computeSidebarVisibility(dx, dy) {
function visibility(aSidebarRect, aVisibleRect) {
let width = aSidebarRect.width;
aSidebarRect.restrictTo(aVisibleRect);
return (width ? aSidebarRect.width / width : 0);
}
if (!dx) dx = 0;
if (!dy) dy = 0;
let [leftSidebar, rightSidebar] = [Elements.tabs.getBoundingClientRect(), Elements.controls.getBoundingClientRect()];
let visibleRect = new Rect(0, 0, window.innerWidth, 1);
let leftRect = new Rect(Math.round(leftSidebar.left) - Math.round(dx), 0, Math.round(leftSidebar.width), 1);
let rightRect = new Rect(Math.round(rightSidebar.left) - Math.round(dx), 0, Math.round(rightSidebar.width), 1);
let leftTotalWidth = leftRect.width;
let leftVisibility = visibility(leftRect, visibleRect);
let rightTotalWidth = rightRect.width;
let rightVisibility = visibility(rightRect, visibleRect);
return [leftVisibility, rightVisibility, leftTotalWidth, rightTotalWidth];
},
/**
* Compute the horizontal distance needed to scroll in order to snap the
* sidebars into place.
*
* Visibility is computed by creating dummy rectangles for the sidebar and the
* visible rect. Sidebar rectangles come from getBoundingClientRect(), so
* they are in absolute client coordinates (and since we're in a scrollbox,
* this means they are positioned relative to the window, which is anchored at
* (0, 0) regardless of the scrollbox's scroll position. The rectangles are
* made to have a top of 0 and a height of 1, since these do not affect how we
* compute visibility (we care only about width), and using rectangles allows
* us to use restrictTo(), which comes in handy.
*
* @return scrollBy dx needed to make snap happen
*/
snapSidebars: function snapSidebars() {
let [leftvis, ritevis, leftw, ritew] = Browser.computeSidebarVisibility();
let snappedX = 0;
let dirVal = Util.localeDir;
if (leftvis != 0 && leftvis != 1) {
if (leftvis >= 0.6666) {
snappedX = -((1 - leftvis) * leftw) * dirVal;
} else {
snappedX = leftvis * leftw * dirVal;
}
}
else if (ritevis != 0 && ritevis != 1) {
if (ritevis >= 0.6666) {
snappedX = (1 - ritevis) * ritew * dirVal;
} else {
snappedX = -ritevis * ritew * dirVal;
}
}
return Math.round(snappedX);
},
tryFloatToolbar: function tryFloatToolbar(dx, dy) {
if (this.floatedWhileDragging || Util.isTablet())
return;
let [leftvis, ritevis, leftw, ritew] = Browser.computeSidebarVisibility(dx, dy);
if (leftvis > 0 || ritevis > 0) {
BrowserUI.lockToolbar();
this.floatedWhileDragging = true;
}
},
tryUnfloatToolbar: function tryUnfloatToolbar(dx, dy) {
if (!this.floatedWhileDragging)
return true;
let [leftvis, ritevis, leftw, ritew] = Browser.computeSidebarVisibility(dx, dy);
if (leftvis == 0 && ritevis == 0) {
BrowserUI.unlockToolbar();
this.floatedWhileDragging = false;
return true;
}
return false;
},
/** Zoom one step in (negative) or out (positive). */
zoom: function zoom(aDirection) {
let tab = this.selectedTab;
if (!tab.allowZoom)
return;
let browser = tab.browser;
let oldZoomLevel = browser.scale;
let zoomLevel = oldZoomLevel;
let zoomValues = ZoomManager.zoomValues;
let i = zoomValues.indexOf(ZoomManager.snap(zoomLevel)) + (aDirection < 0 ? 1 : -1);
if (i >= 0 && i < zoomValues.length)
zoomLevel = zoomValues[i];
zoomLevel = tab.clampZoomLevel(zoomLevel);
let browserRect = browser.getBoundingClientRect();
let center = browser.transformClientToBrowser(browserRect.width / 2,
browserRect.height / 2);
let rect = this._getZoomRectForPoint(center.x, center.y, zoomLevel);
AnimatedZoom.animateTo(rect);
},
/** Rect should be in browser coordinates. */
_getZoomLevelForRect: function _getZoomLevelForRect(rect) {
const margin = 15;
return this.selectedTab.clampZoomLevel(ViewableAreaObserver.width / (rect.width + margin * 2));
},
/**
* Find an appropriate zoom rect for an element bounding rect, if it exists.
* @return Rect in viewport coordinates, or null
*/
_getZoomRectForRect: function _getZoomRectForRect(rect, y) {
let zoomLevel = this._getZoomLevelForRect(rect);
return this._getZoomRectForPoint(rect.center().x, y, zoomLevel);
},
/**
* Find a good zoom rectangle for point that is specified in browser coordinates.
* @return Rect in viewport coordinates
*/
_getZoomRectForPoint: function _getZoomRectForPoint(x, y, zoomLevel) {
let browser = getBrowser();
x = x * browser.scale;
y = y * browser.scale;
zoomLevel = Math.min(ZoomManager.MAX, zoomLevel);
let oldScale = browser.scale;
let zoomRatio = zoomLevel / oldScale;
let browserRect = browser.getBoundingClientRect();
let newVisW = browserRect.width / zoomRatio, newVisH = browserRect.height / zoomRatio;
let result = new Rect(x - newVisW / 2, y - newVisH / 2, newVisW, newVisH);
// Make sure rectangle doesn't poke out of viewport
return result.translateInside(new Rect(0, 0, browser.contentDocumentWidth * oldScale,
browser.contentDocumentHeight * oldScale));
},
zoomToPoint: function zoomToPoint(cX, cY, aRect) {
let tab = this.selectedTab;
if (!tab.allowZoom)
return null;
let zoomRect = null;
if (aRect)
zoomRect = this._getZoomRectForRect(aRect, cY);
if (!zoomRect && tab.isDefaultZoomLevel()) {
let scale = tab.clampZoomLevel(tab.browser.scale * 2);
zoomRect = this._getZoomRectForPoint(cX, cY, scale);
}
if (zoomRect)
AnimatedZoom.animateTo(zoomRect);
return zoomRect;
},
zoomFromPoint: function zoomFromPoint(cX, cY) {
let tab = this.selectedTab;
if (tab.allowZoom && !tab.isDefaultZoomLevel()) {
let zoomLevel = tab.getDefaultZoomLevel();
let zoomRect = this._getZoomRectForPoint(cX, cY, zoomLevel);
AnimatedZoom.animateTo(zoomRect);
}
},
// 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 = Util.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);
},
/**
* Convenience function for getting the scrollbox position off of a
* scrollBoxObject interface. Returns the actual values instead of the
* wrapping objects.
*
* @param scroller a scrollBoxObject on which to call scroller.getPosition()
*/
getScrollboxPosition: function getScrollboxPosition(scroller) {
let x = {};
let y = {};
scroller.getPosition(x, y);
return new Point(x.value, y.value);
},
forceChromeReflow: function forceChromeReflow() {
let dummy = getComputedStyle(document.documentElement, "").width;
},
receiveMessage: function receiveMessage(aMessage) {
let json = aMessage.json;
let browser = aMessage.target;
switch (aMessage.name) {
case "MozScrolledAreaChanged": {
let tab = this.getTabForBrowser(browser);
if (tab)
tab.scrolledAreaChanged();
break;
}
case "Browser:ViewportMetadata": {
let tab = this.getTabForBrowser(browser);
// Some browser such as iframes loaded dynamically into the chrome UI
// does not have any assigned tab
if (tab)
tab.updateViewportMetadata(json);
break;
}
case "Browser:CanCaptureMouse:Return": {
let tab = this.getTabForBrowser(browser);
tab.contentMightCaptureMouse = json.contentMightCaptureMouse;
break;
}
case "Browser:FormSubmit":
browser.lastLocation = null;
break;
case "Browser:CanUnload:Return": {
if (!json.permit)
return;
// Allow a little delay to not close the target tab while processing
// a message for this particular tab
setTimeout(function(self) {
let tab = self.getTabForBrowser(browser);
self._doCloseTab(tab);
}, 0, this);
break;
}
case "Browser:KeyPress": {
let keyset = Elements.mainKeyset;
keyset.setAttribute("disabled", "false");
if (json.preventDefault)
break;
let event = document.createEvent("KeyEvents");
event.initKeyEvent("keypress", true, true, null,
json.ctrlKey, json.altKey, json.shiftKey, json.metaKey,
json.keyCode, json.charCode);
keyset.dispatchEvent(event);
break;
}
case "Browser:ZoomToPoint:Return":
if (json.zoomTo) {
let rect = Rect.fromRect(json.zoomTo);
this.zoomToPoint(json.x, json.y, rect);
} else {
this.zoomFromPoint(json.x, json.y);
}
break;
case "scroll":
if (browser == this.selectedBrowser) {
if (json.x != 0)
this.hideSidebars();
if (json.y != 0)
this.hideTitlebar();
}
break;
case "Browser:CertException":
this._handleCertException(aMessage);
break;
case "Browser:BlockedSite":
this._handleBlockedSite(aMessage);
break;
case "Browser:ErrorPage":
this._handleErrorPage(aMessage);
break;
case "Browser:PluginClickToPlayClicked": {
// Save off session history
let parent = browser.parentNode;
let data = browser.__SS_data;
if (data.entries.length == 0)
return;
// Remove the browser from the DOM, effectively killing it's content
parent.removeChild(browser);
// Re-create the browser as non-remote, so plugins work
browser.setAttribute("remote", "false");
parent.appendChild(browser);
// Reload the content using session history
browser.__SS_data = data;
let json = {
uri: data.entries[data.index - 1].url,
flags: null,
entries: data.entries,
index: data.index
};
browser.messageManager.sendAsyncMessage("WebNavigation:LoadURI", json);
break;
}
}
}
};
Browser.MainDragger = function MainDragger() {
this._horizontalScrollbar = document.getElementById("horizontal-scroller");
this._verticalScrollbar = document.getElementById("vertical-scroller");
this._scrollScales = { x: 0, y: 0 };
Elements.browsers.addEventListener("PanBegin", this, false);
Elements.browsers.addEventListener("PanFinished", this, false);
// allow pages to to override panning, but should
// still allow the sidebars to be panned out of view
this.contentMouseCapture = false;
};
Browser.MainDragger.prototype = {
isDraggable: function isDraggable(target, scroller) {
return { x: true, y: true };
},
dragStart: function dragStart(clientX, clientY, target, scroller) {
let browser = getBrowser();
let bcr = browser.getBoundingClientRect();
this._contentView = browser.getViewAt(clientX - bcr.left, clientY - bcr.top);
this._stopAtSidebar = 0;
let isTablet = Util.isTablet();
this._panToolbars = !isTablet;
this._grabSidebar = false;
this._canGrabSidebar = false;
// In landscape portrait mode, swiping from the left margin drags the tab sidebar.
if (isTablet && !Util.isPortrait()) {
let grabSidebarMargin = TabletSidebar.visible ? 30 : 5;
// Don't actually grab until we see whether the swipe is horizontal in dragMove.
this._canGrabSidebar = ((Util.localeDir == Util.LOCALE_DIR_LTR)
? (clientX - bcr.left < 30)
: (bcr.right - clientX < 30));
}
if (this._sidebarTimeout) {
clearTimeout(this._sidebarTimeout);
this._sidebarTimeout = null;
}
},
dragStop: function dragStop(dx, dy, scroller) {
if (this._grabSidebar) {
TabletSidebar.ungrab();
return;
}
if (this._contentView && this._contentView._updateCacheViewport)
this._contentView._updateCacheViewport();
this._contentView = null;
this.dragMove(Browser.snapSidebars(), 0, scroller);
Browser.tryUnfloatToolbar();
},
dragMove: function dragMove(dx, dy, scroller, aIsKinetic) {
if (this._canGrabSidebar) {
this._grabSidebar = TabletSidebar.tryGrab(dx);
// After trying once, don't keep checking every move.
this._canGrabSidebar = false;
}
if (this._grabSidebar) {
TabletSidebar.slideBy(dx);
return;
}
let doffset = new Point(dx, dy);
let sidebarOffset = null;
if (this._panToolbars) {
// If the sidebars are showing, we pan them out of the way before panning the content.
// The panning distance that should be used for the sidebars in is stored in sidebarOffset,
// and subtracted from doffset.
sidebarOffset = this._getSidebarOffset(doffset);
// If we started with one sidebar open, stop when we get to the other.
if (sidebarOffset.x != 0)
this._blockSidebars(sidebarOffset);
}
if (!this.contentMouseCapture)
this._panContent(doffset);
if (this._panToolbars) {
if (aIsKinetic && doffset.x != 0)
return false;
this._panChrome(doffset, sidebarOffset);
}
this._updateScrollbars();
return !doffset.equals(dx, dy);
},
_blockSidebars: function md_blockSidebars(aSidebarOffset) {
// only call this code once
if (!this._stopAtSidebar) {
this._stopAtSidebar = aSidebarOffset.x; // negative: stop at left; positive: stop at right
// after a timeout, we allow showing the sidebar, to give the appearance of some "friction" at the edge
this._sidebarTimeout = setTimeout(function(self) {
self._stopAtSidebar = 0;
self._sidebarTimeout = null;
}, 350, this);
}
},
handleEvent: function handleEvent(aEvent) {
let browser = getBrowser();
switch (aEvent.type) {
case "PanBegin": {
let width = ViewableAreaObserver.width, height = ViewableAreaObserver.height;
let contentWidth = browser.contentDocumentWidth * browser.scale;
let contentHeight = browser.contentDocumentHeight * browser.scale;
// Allow a small margin on both sides to prevent adding scrollbars
// on small viewport approximation
const ALLOWED_MARGIN = 5;
const SCROLL_CORNER_SIZE = 8;
this._scrollScales = {
x: (width + ALLOWED_MARGIN) < contentWidth ? (width - SCROLL_CORNER_SIZE) / contentWidth : 0,
y: (height + ALLOWED_MARGIN) < contentHeight ? (height - SCROLL_CORNER_SIZE) / contentHeight : 0
}
if (!this._grabSidebar)
this._showScrollbars();
break;
}
case "PanFinished":
this._hideScrollbars();
// Update the scroll position of the content
browser._updateCSSViewport();
break;
}
},
_panContent: function md_panContent(aOffset) {
if (this._contentView && !this._contentView.isRoot()) {
this._panContentView(this._contentView, aOffset);
// XXX we may need to have "escape borders" for iframe panning
// XXX does not deal with scrollables within scrollables
}
// Do content panning
this._panContentView(getBrowser().getRootView(), aOffset);
},
_panChrome: function md_panChrome(aOffset, aSidebarOffset) {
// In order to prevent users from hiding one sidebar and followed by immediately bringing
// out the other one, we absorb sidebar pans here for a fixed time.
//
// Also, if users are panning a website then we allow them to pan away sidebars, but
// nothing more.
//
let offsetX = aOffset.x;
if (this.contentMouseCapture)
aOffset.set(aSidebarOffset);
else if ((this._stopAtSidebar > 0 && offsetX > 0) ||
(this._stopAtSidebar < 0 && offsetX < 0))
aOffset.x = aSidebarOffset.x;
else
aOffset.add(aSidebarOffset);
Browser.tryFloatToolbar(aOffset.x, 0);
// pan the sidebars
this._panScroller(Browser.controlsScrollboxScroller, aOffset);
// pan the urlbar
this._panScroller(Browser.pageScrollboxScroller, aOffset);
},
/** Return offset that pans controls away from screen. Updates doffset with leftovers. */
_getSidebarOffset: function(doffset) {
let x = 0, y = 0, rect;
rect = Rect.fromRect(Browser.pageScrollbox.getBoundingClientRect()).map(Math.round);
if (doffset.x < 0 && rect.right < window.innerWidth)
x = Math.max(doffset.x, rect.right - window.innerWidth);
if (doffset.x > 0 && rect.left > 0)
x = Math.min(doffset.x, rect.left);
// XXX could we use getBrowser().getBoundingClientRect().height here?
let height = Elements.contentViewport.getBoundingClientRect().height;
height -= Elements.contentNavigator.getBoundingClientRect().height;
rect = Rect.fromRect(Browser.contentScrollbox.getBoundingClientRect()).map(Math.round);
if (doffset.y < 0 && rect.bottom < height)
y = Math.max(doffset.y, rect.bottom - height);
if (doffset.y > 0 && rect.top > 0)
y = Math.min(doffset.y, rect.top);
doffset.subtract(x, y);
return new Point(x, y);
},
/** Pan scroller by the given amount. Updates doffset with leftovers. */
_panContentView: function _panContentView(contentView, doffset) {
let pos0 = contentView.getPosition();
contentView.scrollBy(doffset.x, doffset.y);
let pos1 = contentView.getPosition();
doffset.subtract(pos1.x - pos0.x, pos1.y - pos0.y);
},
/** Pan scroller by the given amount. Updates doffset with leftovers. */
_panScroller: function _panScroller(scroller, doffset) {
let scroll = Browser.getScrollboxPosition(scroller);
scroller.scrollBy(doffset.x, doffset.y);
let scroll1 = Browser.getScrollboxPosition(scroller);
doffset.subtract(scroll1.x - scroll.x, scroll1.y - scroll.y);
},
_updateScrollbars: function _updateScrollbars() {
let scaleX = this._scrollScales.x, scaleY = this._scrollScales.y;
let contentScroll = Browser.getScrollboxPosition(Browser.contentScrollboxScroller);
if (scaleX)
this._horizontalScrollbar.style.MozTransform = "translateX(" + Math.round(contentScroll.x * scaleX) + "px)";
if (scaleY) {
let y = Math.round(contentScroll.y * scaleY);
// Vertical scrollbar is out of view when showing the tabs sidebar,
// the 'solution' for now is to reposition it if needed
let x = 0;
if (Browser.floatedWhileDragging) {
let [tabsVis, controlsVis, tabsW, controlsW] = Browser.computeSidebarVisibility();
let [tabsSidebar, controlsSidebar] = [Elements.tabs.getBoundingClientRect(), Elements.controls.getBoundingClientRect()];
// Check if the sidebars are inverted (rtl)
let direction = -1 * Util.localeDir;
x = Math.round(tabsW * tabsVis) * direction
}
this._verticalScrollbar.style.MozTransform = "translate(" + x + "px," + y + "px)";
}
},
_showScrollbars: function _showScrollbars() {
this._updateScrollbars();
let scaleX = this._scrollScales.x, scaleY = this._scrollScales.y;
if (scaleX) {
this._horizontalScrollbar.width = ViewableAreaObserver.width * scaleX;
this._horizontalScrollbar.setAttribute("panning", "true");
}
if (scaleY) {
this._verticalScrollbar.height = ViewableAreaObserver.height * scaleY;
this._verticalScrollbar.setAttribute("panning", "true");
}
},
_hideScrollbars: function _hideScrollbars() {
this._scrollScales.x = 0, this._scrollScales.y = 0;
this._horizontalScrollbar.removeAttribute("panning");
this._verticalScrollbar.removeAttribute("panning");
this._horizontalScrollbar.style.MozTransform = "";
this._verticalScrollbar.style.MozTransform = "";
}
};
Browser.WebProgress = function WebProgress() {
messageManager.addMessageListener("Content:StateChange", this);
messageManager.addMessageListener("Content:LocationChange", this);
messageManager.addMessageListener("Content:SecurityChange", this);
};
Browser.WebProgress.prototype = {
receiveMessage: function receiveMessage(aMessage) {
let json = aMessage.json;
let tab = Browser.getTabForBrowser(aMessage.target);
switch (aMessage.name) {
case "Content:StateChange": {
if (json.stateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK) {
if (json.stateFlags & Ci.nsIWebProgressListener.STATE_START)
this._networkStart(tab);
else if (json.stateFlags & Ci.nsIWebProgressListener.STATE_STOP)
this._networkStop(tab);
}
if (json.stateFlags & Ci.nsIWebProgressListener.STATE_IS_DOCUMENT) {
if (json.stateFlags & Ci.nsIWebProgressListener.STATE_STOP)
this._documentStop(tab);
}
break;
}
case "Content:LocationChange": {
let spec = json.location;
let location = spec.split("#")[0]; // Ignore fragment identifier changes.
if (tab == Browser.selectedTab)
BrowserUI.updateURI();
let locationHasChanged = (location != tab.browser.lastLocation);
if (locationHasChanged) {
Browser.getNotificationBox(tab.browser).removeTransientNotifications();
tab.resetZoomLevel();
tab.hostChanged = true;
tab.browser.lastLocation = location;
tab.browser.userTypedValue = "";
tab.browser.appIcon = { href: null, size:-1 };
#ifdef MOZ_CRASHREPORTER
if (CrashReporter.enabled)
CrashReporter.annotateCrashReport("URL", spec);
#endif
this._waitForLoad(tab);
}
let event = document.createEvent("UIEvents");
event.initUIEvent("URLChanged", true, false, window, locationHasChanged);
tab.browser.dispatchEvent(event);
break;
}
case "Content:SecurityChange": {
// Don't need to do anything if the data we use to update the UI hasn't changed
if (tab.state == json.state && !tab.hostChanged)
return;
tab.hostChanged = false;
tab.state = json.state;
if (tab == Browser.selectedTab)
getIdentityHandler().checkIdentity();
break;
}
}
},
_networkStart: function _networkStart(aTab) {
aTab.startLoading();
if (aTab == Browser.selectedTab) {
BrowserUI.update(TOOLBARSTATE_LOADING);
// We should at least show something in the URLBar until
// the load has progressed further along
if (aTab.browser.currentURI.spec == "about:blank")
BrowserUI.updateURI({ captionOnly: true });
}
},
_networkStop: function _networkStop(aTab) {
aTab.endLoading();
if (aTab == Browser.selectedTab)
BrowserUI.update(TOOLBARSTATE_LOADED);
},
_documentStop: function _documentStop(aTab) {
// Make sure the URLbar is in view. If this were the selected tab,
// _waitForLoad would scroll to top.
aTab.pageScrollOffset = { x: 0, y: 0 };
},
_waitForLoad: function _waitForLoad(aTab) {
let browser = aTab.browser;
aTab._firstPaint = false;
browser.messageManager.addMessageListener("Browser:FirstPaint", function firstPaintListener(aMessage) {
browser.messageManager.removeMessageListener(aMessage.name, arguments.callee);
aTab._firstPaint = true;
// We're about to have new page content, so scroll the content area
// so the new paints will draw correctly.
// Background tabs are delayed scrolled to top in _documentStop
if (getBrowser() == browser) {
let json = aMessage.json;
browser.getRootView().scrollTo(Math.floor(json.x * browser.scale),
Math.floor(json.y * browser.scale));
if (json.x == 0 && json.y == 0)
Browser.pageScrollboxScroller.scrollTo(0, 0);
else
Browser.pageScrollboxScroller.scrollTo(0, Number.MAX_VALUE);
}
aTab.scrolledAreaChanged(true);
aTab.updateThumbnail();
aTab.updateContentCapture();
});
}
};
const OPEN_APPTAB = 100; // Hack until we get a real API
function nsBrowserAccess() { }
nsBrowserAccess.prototype = {
QueryInterface: function(aIID) {
if (aIID.equals(Ci.nsIBrowserDOMWindow) || aIID.equals(Ci.nsISupports))
return this;
throw Cr.NS_NOINTERFACE;
},
_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;
let location;
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");
}
}
let browser;
if (aWhere == Ci.nsIBrowserDOMWindow.OPEN_NEWWINDOW) {
let url = aURI ? aURI.spec : "about:blank";
let newWindow = openDialog("chrome://browser/content/browser.xul", "_blank",
"all,dialog=no", url, null, null, null);
// since newWindow.Browser doesn't exist yet, just return null
return null;
} else if (aWhere == Ci.nsIBrowserDOMWindow.OPEN_NEWTAB) {
let owner = isExternal ? null : Browser.selectedTab;
let tab = Browser.addTab("about:blank", true, owner, { getAttention: true });
if (isExternal)
tab.closeOnExit = true;
browser = tab.browser;
} else if (aWhere == OPEN_APPTAB) {
Browser.tabs.forEach(function(aTab) {
if ("appURI" in aTab.browser && aTab.browser.appURI.spec == aURI.spec) {
Browser.selectedTab = aTab;
browser = aTab.browser;
}
});
if (!browser) {
// Make a new tab to hold the app
let tab = Browser.addTab("about:blank", true, null, { getAttention: true });
browser = tab.browser;
browser.appURI = aURI;
} else {
// Just use the existing browser, but return null to keep the system from trying to load the URI again
browser = null;
}
} else { // OPEN_CURRENTWINDOW and illegal values
browser = Browser.selectedBrowser;
}
try {
let referrer;
if (aURI && browser) {
if (aOpener) {
location = aOpener.location;
referrer = Services.io.newURI(location, null, null);
}
browser.loadURIWithFlags(aURI.spec, loadflags, referrer, null, null);
}
browser.focus();
} catch(e) { }
// We are loading web content into this window, so make sure content is visible
BrowserUI.hidePanel();
BrowserUI.closeAutoComplete();
Browser.hideSidebars();
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 Browser.browsers.some(function (browser) browser.contentWindow == aWindow);
}
};
/** Watches for mouse events in chrome and sends them to content. */
const ContentTouchHandler = {
// Use lightweight transactions so that old context menus and tap
// highlights don't ever see the light of day.
_messageId: 0,
init: function init() {
document.addEventListener("TapDown", this, true);
document.addEventListener("TapOver", this, false);
document.addEventListener("TapUp", this, false);
document.addEventListener("TapSingle", this, false);
document.addEventListener("TapDouble", this, false);
document.addEventListener("TapLong", this, false);
document.addEventListener("TapMove", this, false);
document.addEventListener("PanBegin", this, false);
document.addEventListener("PopupChanged", this, false);
document.addEventListener("CancelTouchSequence", this, false);
// Context menus have the following flow:
// [parent] mousedown -> TapLong -> Browser:MouseLong
// [child] Browser:MouseLong -> contextmenu -> Browser:ContextMenu
// [parent] Browser:ContextMenu -> ...*
//
// * = Here some time will elapse. Although we get the context menu we need
// ASAP, we do not act on the context menu until we receive a LongTap.
// This is so we can show the context menu as soon as we know it is
// a long tap, without waiting for child process.
//
messageManager.addMessageListener("Browser:ContextMenu", this);
messageManager.addMessageListener("Browser:Highlight", this);
messageManager.addMessageListener("Browser:CaptureEvents", this);
},
handleEvent: function handleEvent(aEvent) {
// ignore content events we generate
if (aEvent.target.localName == "browser")
return;
switch (aEvent.type) {
case "PanBegin":
getBrowser().messageManager.sendAsyncMessage("Browser:MouseCancel", {});
break;
case "PopupChanged":
case "CancelTouchSequence":
this._clearPendingMessages();
break;
default: {
if (ContextHelper.popupState) {
// Don't send content events when there's a popup
aEvent.preventDefault();
break;
}
if (!this._targetIsContent(aEvent)) {
// Received tap event on something that isn't for content.
this._clearPendingMessages();
break;
}
switch (aEvent.type) {
case "TapDown":
this.tapDown(aEvent.clientX, aEvent.clientY);
break;
case "TapOver":
this.tapOver(aEvent.clientX, aEvent.clientY);
break;
case "TapUp":
if (aEvent.isClick) {
if (!Browser.selectedTab.allowZoom) {
this.tapSingle(aEvent.clientX, aEvent.clientY, Util.modifierMaskFromEvent(aEvent));
aEvent.preventDefault();
}
}
this._dispatchMouseEvent("Browser:MouseUp", aEvent.clientX, aEvent.clientY);
break;
case "TapSingle":
this.tapSingle(aEvent.clientX, aEvent.clientY, aEvent.modifiers);
this._dispatchMouseEvent("Browser:MouseUp", aEvent.clientX, aEvent.clientY);
break;
case "TapDouble":
this.tapDouble(aEvent.clientX, aEvent.clientY, aEvent.modifiers);
break;
case "TapLong":
this.tapLong(aEvent.clientX, aEvent.clientY);
break;
case "TapMove":
this.tapMove(aEvent.clientX, aEvent.clientY);
break;
}
}
}
},
receiveMessage: function receiveMessage(aMessage) {
let json = aMessage.json;
if (json.messageId != this._messageId)
return;
switch (aMessage.name) {
case "Browser:ContextMenu":
// Long tap
let contextMenu = { name: aMessage.name, json: json, target: aMessage.target };
if (ContextHelper.showPopup(contextMenu)) {
// Stop all input sequences
let event = document.createEvent("Events");
event.initEvent("CancelTouchSequence", true, false);
document.dispatchEvent(event);
} else {
SelectionHelper.showPopup(contextMenu);
}
break;
case "Browser:CaptureEvents": {
let tab = Browser.getTabForBrowser(aMessage.target);
tab.contentMightCaptureMouse = json.contentMightCaptureMouse;
if (this.touchTimeout) {
clearTimeout(this.touchTimeout);
this.touchTimeout = null;
}
if (json.click)
this.clickPrevented = true;
if (json.panning)
this.panningPrevented = true;
// We don't know if panning is allowed until the first touchmove event is processed.
if (this.canCancelPan && json.type == "touchmove")
Elements.browsers.customDragger.contentMouseCapture = this.panningPrevented;
break;
}
}
},
/** Invalidates any messages received from content that are sensitive to time. */
_clearPendingMessages: function _clearPendingMessages() {
this._messageId++;
let browser = getBrowser();
browser.messageManager.sendAsyncMessage("Browser:MouseCancel", {});
},
/**
* Check if the event concern the browser content
*/
_targetIsContent: function _targetIsContent(aEvent) {
// TapUp event with XULDocument as a target occurs on desktop when the
// mouse is released outside of the Fennec window, and because XULDocument
// does not have a classList properties, just check it exists first to
// prevent a warning
let target = aEvent.target;
return target && ("classList" in target && target.classList.contains("inputHandler"));
},
_dispatchMouseEvent: function _dispatchMouseEvent(aName, aX, aY, aOptions) {
let browser = getBrowser();
let pos = browser.transformClientToBrowser(aX || 0, aY || 0);
let json = aOptions || {};
json.x = pos.x;
json.y = pos.y;
json.messageId = this._messageId;
browser.messageManager.sendAsyncMessage(aName, json);
},
touchTimeout: null,
canCancelPan: false,
clickPrevented: false,
panningPrevented: false,
updateCanCancel: function(aX, aY) {
let dpi = Util.displayDPI;
const kSafetyX = Services.prefs.getIntPref("dom.w3c_touch_events.safetyX") / 240 * dpi;
const kSafetyY = Services.prefs.getIntPref("dom.w3c_touch_events.safetyY") / 240 * dpi;
let browser = getBrowser();
let bcr = browser.getBoundingClientRect();
let rect = new Rect(0, 0, window.innerWidth, window.innerHeight);
rect.restrictTo(Rect.fromRect(bcr));
// Check if the user touched near to one of the edges of the browser area
// or if the urlbar is showing
this.canCancelPan = (aX >= rect.left + kSafetyX) && (aX <= rect.right - kSafetyX) &&
(aY >= rect.top + kSafetyY);
},
tapDown: function tapDown(aX, aY) {
let browser = getBrowser();
browser.focus();
// if the page might capture touch events, we give it the option
this.updateCanCancel(aX, aY);
this.clickPrevented = false;
this.panningPrevented = false;
let dragger = Elements.browsers.customDragger;
dragger.contentMouseCapture = this.canCancelPan && Browser.selectedTab.contentMightCaptureMouse;
if (this.touchTimeout) {
clearTimeout(this.touchTimeout);
this.touchTimeout = null;
}
if (dragger.contentMouseCapture)
this.touchTimeout = setTimeout(function() dragger.contentMouseCapture = false, kTouchTimeout);
this._dispatchMouseEvent("Browser:MouseDown", aX, aY);
},
tapOver: function tapOver(aX, aY) {
if (!this.clickPrevented)
this._dispatchMouseEvent("Browser:MouseOver", aX, aY);
},
tapUp: function tapUp(aX, aY) {
let browser = getBrowser();
browser.messageManager.sendAsyncMessage("Browser:MouseCancel", {});
},
tapSingle: function tapSingle(aX, aY, aModifiers) {
// Cancel the mouse click if we are showing a context menu
if (!ContextHelper.popupState && !this.clickPrevented)
this._dispatchMouseEvent("Browser:MouseClick", aX, aY, { modifiers: aModifiers });
},
tapMove: function tapMove(aX, aY) {
if (Browser.selectedTab.contentMightCaptureMouse)
this._dispatchMouseEvent("Browser:MouseMove", aX, aY);
},
tapDouble: function tapDouble(aX, aY, aModifiers) {
this._clearPendingMessages();
let tab = Browser.selectedTab;
if (!tab.allowZoom)
return;
let width = ViewableAreaObserver.width / Browser.getScaleRatio();
this._dispatchMouseEvent("Browser:ZoomToPoint", aX, aY, { width: width });
},
tapLong: function tapLong(aX, aY) {
this._dispatchMouseEvent("Browser:MouseLong", aX, aY);
},
toString: function toString() {
return "[ContentTouchHandler] { }";
}
};
/** Prevent chrome from consuming key events before remote content has a chance. */
function KeyFilter(container) {
container.addEventListener("keypress", this, false);
container.addEventListener("keyup", this, false);
container.addEventListener("keydown", this, false);
}
KeyFilter.prototype = {
handleEvent: function handleEvent(aEvent) {
if (Elements.contentShowing.getAttribute("disabled") == "true")
return;
let browser = getBrowser();
if (browser && browser.active) {
aEvent.stopPropagation();
document.getElementById("mainKeyset").setAttribute("disabled", "true");
}
},
toString: function toString() {
return "[KeyFilter] { }";
}
};
/**
* Utility class to handle manipulations of the identity indicators in the UI
*/
function IdentityHandler() {
this._staticStrings = {};
this._staticStrings[this.IDENTITY_MODE_DOMAIN_VERIFIED] = {
encryption_label: Strings.browser.GetStringFromName("identity.encrypted2")
};
this._staticStrings[this.IDENTITY_MODE_IDENTIFIED] = {
encryption_label: Strings.browser.GetStringFromName("identity.encrypted2")
};
this._staticStrings[this.IDENTITY_MODE_UNKNOWN] = {
encryption_label: Strings.browser.GetStringFromName("identity.unencrypted2")
};
// Close the popup when reloading the page
Elements.browsers.addEventListener("URLChanged", this, true);
this._cacheElements();
}
IdentityHandler.prototype = {
// Mode strings used to control CSS display
IDENTITY_MODE_IDENTIFIED : "verifiedIdentity", // High-quality identity information
IDENTITY_MODE_DOMAIN_VERIFIED : "verifiedDomain", // Minimal SSL CA-signed domain verification
IDENTITY_MODE_UNKNOWN : "unknownIdentity", // No trusted identity information
// Cache the most recent SSLStatus and Location seen in checkIdentity
_lastStatus : null,
_lastLocation : null,
/**
* Build out a cache of the elements that we need frequently.
*/
_cacheElements: function() {
this._identityBox = document.getElementById("identity-box");
this._identityPopup = document.getElementById("identity-container");
this._identityPopupContentBox = document.getElementById("identity-popup-content-box");
this._identityPopupContentHost = document.getElementById("identity-popup-content-host");
this._identityPopupContentOwner = document.getElementById("identity-popup-content-owner");
this._identityPopupContentSupp = document.getElementById("identity-popup-content-supplemental");
this._identityPopupContentVerif = document.getElementById("identity-popup-content-verifier");
this._identityPopupEncLabel = document.getElementById("identity-popup-encryption-label");
},
getIdentityData: function() {
return this._lastStatus.serverCert;
},
/**
* Determine the identity of the page being displayed by examining its SSL cert
* (if available) and, if necessary, update the UI to reflect this.
*/
checkIdentity: function() {
let browser = getBrowser();
let state = browser.securityUI.state;
let location = browser.currentURI;
let currentStatus = browser.securityUI.SSLStatus;
this._lastStatus = currentStatus;
this._lastLocation = {};
try {
// make a copy of the passed in location to avoid cycles
this._lastLocation = { host: location.hostPort, hostname: location.host, port: location.port == -1 ? "" : location.port};
} catch(e) { }
if (state & Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL)
this.setMode(this.IDENTITY_MODE_IDENTIFIED);
else if (state & Ci.nsIWebProgressListener.STATE_SECURE_HIGH)
this.setMode(this.IDENTITY_MODE_DOMAIN_VERIFIED);
else
this.setMode(this.IDENTITY_MODE_UNKNOWN);
},
/**
* Return the eTLD+1 version of the current hostname
*/
getEffectiveHost: function() {
// Cache the eTLDService if this is our first time through
if (!this._eTLDService)
this._eTLDService = Cc["@mozilla.org/network/effective-tld-service;1"]
.getService(Ci.nsIEffectiveTLDService);
try {
return this._eTLDService.getBaseDomainFromHost(this._lastLocation.hostname);
} catch (e) {
// If something goes wrong (e.g. hostname is an IP address) just fail back
// to the full domain.
return this._lastLocation.hostname;
}
},
/**
* Update the UI to reflect the specified mode, which should be one of the
* IDENTITY_MODE_* constants.
*/
setMode: function(newMode) {
this._identityBox.setAttribute("mode", newMode);
this.setIdentityMessages(newMode);
// Update the popup too, if it's open
if (!this._identityPopup.hidden)
this.setPopupMessages(newMode);
},
/**
* Set up the messages for the primary identity UI based on the specified mode,
* and the details of the SSL cert, where applicable
*
* @param newMode The newly set identity mode. Should be one of the IDENTITY_MODE_* constants.
*/
setIdentityMessages: function(newMode) {
let strings = Strings.browser;
if (newMode == this.IDENTITY_MODE_DOMAIN_VERIFIED) {
var iData = this.getIdentityData();
// We need a port number for all lookups. If one hasn't been specified, use
// the https default
var lookupHost = this._lastLocation.host;
if (lookupHost.indexOf(':') < 0)
lookupHost += ":443";
// 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);
// Verifier is either the CA Org, for a normal cert, or a special string
// for certs that are trusted because of a security exception.
var tooltip = strings.formatStringFromName("identity.identified.verifier", [iData.caOrg], 1);
// Check whether this site is a security exception.
if (iData.isException)
tooltip = strings.GetStringFromName("identity.identified.verified_by_you");
}
else if (newMode == this.IDENTITY_MODE_IDENTIFIED) {
// If it's identified, then we can populate the dialog with credentials
iData = this.getIdentityData();
tooltip = strings.formatStringFromName("identity.identified.verifier", [iData.caOrg], 1);
}
else {
tooltip = strings.GetStringFromName("identity.unknown.tooltip");
}
// Push the appropriate strings out to the UI
this._identityBox.tooltipText = tooltip;
},
/**
* Set up the title and content messages for the identity message popup,
* based on the specified mode, and the details of the SSL cert, where
* applicable
*
* @param newMode The newly set identity mode. Should be one of the IDENTITY_MODE_* constants.
*/
setPopupMessages: function(newMode) {
this._identityPopup.setAttribute("mode", newMode);
this._identityPopupContentBox.className = newMode;
// Set the static strings up front
this._identityPopupEncLabel.textContent = this._staticStrings[newMode].encryption_label;
// Initialize the optional strings to empty values
var supplemental = "";
var verifier = "";
if (newMode == this.IDENTITY_MODE_DOMAIN_VERIFIED) {
var iData = this.getIdentityData();
var host = this.getEffectiveHost();
var owner = Strings.browser.GetStringFromName("identity.ownerUnknown2");
verifier = this._identityBox.tooltipText;
supplemental = "";
}
else if (newMode == this.IDENTITY_MODE_IDENTIFIED) {
// If it's identified, then we can populate the dialog with credentials
iData = this.getIdentityData();
host = this.getEffectiveHost();
owner = iData.subjectOrg;
verifier = this._identityBox.tooltipText;
// Build an appropriate supplemental block out of whatever location data we have
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;
} else {
// These strings will be hidden in CSS anyhow
host = "";
owner = "";
}
// Push the appropriate strings out to the UI
this._identityPopupContentHost.textContent = host;
this._identityPopupContentOwner.textContent = owner;
this._identityPopupContentSupp.textContent = supplemental;
this._identityPopupContentVerif.textContent = verifier;
PageActions.updateSiteMenu();
},
show: function ih_show() {
Elements.contentShowing.setAttribute("disabled", "true");
// dismiss any dialog which hide the identity popup
AwesomeScreen.activePanel = null;
while (BrowserUI.activeDialog)
BrowserUI.activeDialog.close();
// Update the popup strings
this.setPopupMessages(this._identityBox.getAttribute("mode") || this.IDENTITY_MODE_UNKNOWN);
this._identityPopup.hidden = false;
let anchorPos = "";
if (Util.isTablet())
anchorPos = "after_start";
else
this._identityPopup.top = BrowserUI.toolbarH - this._identityPopup.offset;
this._identityBox.setAttribute("open", "true");
BrowserUI.pushPopup(this, [this._identityPopup, this._identityBox, Elements.toolbarContainer]);
BrowserUI.lockToolbar();
this._identityPopup.anchorTo(this._identityBox, anchorPos);
},
hide: function ih_hide() {
Elements.contentShowing.setAttribute("disabled", "false");
this._identityPopup.hidden = true;
this._identityBox.removeAttribute("open");
BrowserUI.popPopup(this);
BrowserUI.unlockToolbar();
},
toggle: function ih_toggle() {
if (this._identityPopup.hidden)
this.show();
else
this.hide();
},
/**
* Click handler for the identity-box element in primary chrome.
*/
handleIdentityButtonEvent: function(aEvent) {
let broadcaster = document.getElementById("bcast_uidiscovery");
if (broadcaster && broadcaster.getAttribute("mode") == "discovery")
return;
aEvent.stopPropagation();
if ((aEvent.type == "click" && aEvent.button != 0) ||
(aEvent.type == "keypress" && aEvent.charCode != KeyEvent.DOM_VK_SPACE &&
aEvent.keyCode != KeyEvent.DOM_VK_RETURN))
return; // Left click, space or enter only
this.toggle();
},
handleEvent: function(aEvent) {
if (aEvent.type == "URLChanged" && aEvent.target == Browser.selectedBrowser && !this._identityPopup.hidden)
this.hide();
}
};
var gIdentityHandler;
/**
* Returns the singleton instance of the identity handler class. Should always be
* used instead of referencing the global variable directly or creating new instances
*/
function getIdentityHandler() {
if (!gIdentityHandler)
gIdentityHandler = new IdentityHandler();
return gIdentityHandler;
}
/**
* Handler for blocked popups, triggered by DOMUpdatePageReport events in browser.xml
*/
var PopupBlockerObserver = {
onUpdatePageReport: function onUpdatePageReport(aEvent)
{
var cBrowser = Browser.selectedBrowser;
if (aEvent.originalTarget != cBrowser)
return;
if (!cBrowser.pageReport)
return;
let result = Services.perms.testExactPermission(Browser.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 (!cBrowser.pageReport.reported) {
if (Services.prefs.getBoolPref("privacy.popups.showBrowserMessage")) {
var brandShortName = Strings.brand.GetStringFromName("brandShortName");
var message;
var popupCount = cBrowser.pageReport.length;
let strings = Strings.browser;
if (popupCount > 1)
message = strings.formatStringFromName("popupWarningMultiple", [brandShortName, popupCount], 2);
else
message = strings.formatStringFromName("popupWarning", [brandShortName], 1);
var notificationBox = Browser.getNotificationBox();
var notification = notificationBox.getNotificationWithValue("popup-blocked");
if (notification) {
notification.label = message;
}
else {
var buttons = [
{
label: strings.GetStringFromName("popupButtonAllowOnce"),
accessKey: null,
callback: function() { PopupBlockerObserver.showPopupsForSite(); }
},
{
label: strings.GetStringFromName("popupButtonAlwaysAllow2"),
accessKey: null,
callback: function() { PopupBlockerObserver.allowPopupsForSite(true); }
},
{
label: strings.GetStringFromName("popupButtonNeverWarn2"),
accessKey: null,
callback: function() { PopupBlockerObserver.allowPopupsForSite(false); }
}
];
const priority = notificationBox.PRIORITY_WARNING_MEDIUM;
notificationBox.appendNotification(message, "popup-blocked",
"",
priority, buttons);
}
}
// Record the fact that we've reported this blocked popup, so we don't
// show it again.
cBrowser.pageReport.reported = true;
}
},
allowPopupsForSite: function allowPopupsForSite(aAllow) {
var currentURI = Browser.selectedBrowser.currentURI;
Services.perms.add(currentURI, "popup", aAllow
? Ci.nsIPermissionManager.ALLOW_ACTION
: Ci.nsIPermissionManager.DENY_ACTION);
Browser.getNotificationBox().removeCurrentNotification();
},
showPopupsForSite: function showPopupsForSite() {
let uri = Browser.selectedBrowser.currentURI;
let pageReport = Browser.selectedBrowser.pageReport;
if (pageReport) {
for (let i = 0; i < pageReport.length; ++i) {
var 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;
Browser.addTab(popupURIspec, false, Browser.selectedTab);
}
}
}
};
var XPInstallObserver = {
observe: function xpi_observer(aSubject, aTopic, aData)
{
switch (aTopic) {
case "addon-install-started":
var messageString = Strings.browser.GetStringFromName("alertAddonsDownloading");
ExtensionsView.showAlert(messageString);
break;
case "addon-install-blocked":
var installInfo = aSubject.QueryInterface(Ci.amIWebInstallInfo);
var host = installInfo.originatingURI.host;
var brandShortName = Strings.brand.GetStringFromName("brandShortName");
var notificationName, messageString, buttons;
var strings = Strings.browser;
var enabled = true;
try {
enabled = Services.prefs.getBoolPref("xpinstall.enabled");
}
catch (e) {}
if (!enabled) {
notificationName = "xpinstall-disabled";
if (Services.prefs.prefIsLocked("xpinstall.enabled")) {
messageString = strings.GetStringFromName("xpinstallDisabledMessageLocked");
buttons = [];
}
else {
messageString = strings.formatStringFromName("xpinstallDisabledMessage2", [brandShortName, host], 2);
buttons = [{
label: strings.GetStringFromName("xpinstallDisabledButton"),
accessKey: null,
popup: null,
callback: function editPrefs() {
Services.prefs.setBoolPref("xpinstall.enabled", true);
return false;
}
}];
}
}
else {
notificationName = "xpinstall";
messageString = strings.formatStringFromName("xpinstallPromptWarning2", [brandShortName, host], 2);
buttons = [{
label: strings.GetStringFromName("xpinstallPromptAllowButton"),
accessKey: null,
popup: null,
callback: function() {
// Kick off the install
installInfo.install();
return false;
}
}];
}
var nBox = Browser.getNotificationBox();
if (!nBox.getNotificationWithValue(notificationName)) {
const priority = nBox.PRIORITY_WARNING_MEDIUM;
const iconURL = "chrome://mozapps/skin/update/update.png";
nBox.appendNotification(messageString, notificationName, iconURL, priority, buttons);
}
break;
}
}
};
var SessionHistoryObserver = {
observe: function sho_observe(aSubject, aTopic, aData) {
if (aTopic != "browser:purge-session-history")
return;
let back = document.getElementById("cmd_back");
back.setAttribute("disabled", "true");
let forward = document.getElementById("cmd_forward");
forward.setAttribute("disabled", "true");
let urlbar = document.getElementById("urlbar-edit");
if (urlbar) {
// Clear undo history of the URL bar
urlbar.editor.transactionManager.clear();
}
}
};
var ContentCrashObserver = {
get CrashSubmit() {
delete this.CrashSubmit;
Cu.import("resource://gre/modules/CrashSubmit.jsm", this);
return this.CrashSubmit;
},
observe: function cco_observe(aSubject, aTopic, aData) {
if (aTopic != "ipc:content-shutdown") {
Cu.reportError("ContentCrashObserver unexpected topic: " + aTopic);
return;
}
if (!aSubject.QueryInterface(Ci.nsIPropertyBag2).hasKey("abnormal"))
return;
// See if we should hide the UI or auto close the app based on env vars
let env = Cc["@mozilla.org/process/environment;1"].getService(Ci.nsIEnvironment);
let shutdown = env.get("MOZ_CRASHREPORTER_SHUTDOWN");
if (shutdown) {
let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
appStartup.quit(Ci.nsIAppStartup.eForceQuit);
return;
}
let hideUI = env.get("MOZ_CRASHREPORTER_NO_REPORT");
if (hideUI)
return;
// Spin through the open tabs and resurrect the out-of-process tabs. Resurrection
// does not auto-reload the content. We delay load the content as needed.
Browser.tabs.forEach(function(aTab) {
if (aTab.browser.getAttribute("remote") == "true")
aTab.resurrect();
});
let dumpID = aSubject.hasKey("dumpID") ? aSubject.getProperty("dumpID") : null;
let crashedURL = Browser.selectedTab.browser.__SS_data.entries[0].url;
// Execute the UI prompt after the notification has had a chance to return and close the child process
setTimeout(function(self) {
// Ask the user if we should reload or close the current tab. Other tabs
// will be reloaded when selected.
let title = Strings.browser.GetStringFromName("tabs.crashWarningTitle");
let message = Strings.browser.GetStringFromName("tabs.crashWarningMsg");
let submitText = Strings.browser.GetStringFromName("tabs.crashSubmitReport");
let reloadText = Strings.browser.GetStringFromName("tabs.crashReload");
let closeText = Strings.browser.GetStringFromName("tabs.crashClose");
let buttons = Ci.nsIPrompt.BUTTON_POS_1_DEFAULT +
(Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_0) +
(Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_1);
// Only show the submit checkbox if we have a crash report we can submit
if (!dumpID)
submitText = null;
let submit = { value: true };
let reload = Services.prompt.confirmEx(window, title, message, buttons, closeText, reloadText, null, submitText, submit);
if (reload) {
// Fire a TabSelect event to kick start the restore process
let event = document.createEvent("Events");
event.initEvent("TabSelect", true, false);
event.lastTab = null;
Browser.selectedTab.chromeTab.dispatchEvent(event);
} else {
// If this is the only tab, we need to pre-fab a new tab. We should never
// have zero open tabs
if (Browser.tabs.length == 1) {
// Get the start page from the *default* pref branch, not the user's
let fallbackURL = Browser.getHomePage({ useDefault: true });
Browser.addTab(fallbackURL, false, null, { getAttention: false });
}
// Close this tab, it could be the reason we crashed. The undo-close-tab
// system will pick it up.
Browser.closeTab(Browser.selectedTab, { forceClose: true });
}
// Submit the report, if we have one and the user wants to submit it
if (submit.value && dumpID) {
let directoryService = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);
let extra = directoryService.get("UAppData", Ci.nsIFile);
extra.append("Crash Reports");
extra.append("pending");
extra.append(dumpID + ".extra");
let foStream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
try {
// use 0x02 | 0x10 to open file for appending.
foStream.init(extra, 0x02 | 0x10, 0666, 0);
let data = "URL=" + crashedURL + "\n";
foStream.write(data, data.length);
foStream.close();
} catch (x) {
dump (x);
}
self.CrashSubmit.submit(dumpID);
}
}, 0, this);
}
};
var MemoryObserver = {
observe: function mo_observe(aSubject, aTopic, aData) {
function gc() {
window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils).garbageCollect();
Cu.forceGC();
};
if (aData == "heap-minimize") {
// The JS engine would normally GC on this notification, but since we
// disabled that in favor of this method (bug 669346), we should gc here.
gc();
return;
}
for (let i = Browser.tabs.length - 1; i >= 0; i--) {
let tab = Browser.tabs[i];
if (tab == Browser.selectedTab)
continue;
tab.resurrect();
}
// gc *after* throwing out the tabs so we can reclaim that memory.
gc();
// Bug 637582 - The low memory condition throws out some stuff that we still
// need, re-selecting the active tab gets us back to where we need to be.
let sTab = Browser.selectedTab;
Browser._selectedTab = null;
Browser.selectedTab = sTab;
}
};
var ActivityObserver = {
_inBackground : false,
_notActive : false,
_isDisplayOff : false,
_timeoutID: 0,
observe: function ao_observe(aSubject, aTopic, aData) {
if (aTopic == "application-background") {
this._inBackground = true;
} else if (aTopic == "application-foreground") {
this._inBackground = false;
} else if (aTopic == "system-idle") {
this._notActive = true;
} else if (aTopic == "system-active") {
this._notActive = false;
} else if (aTopic == "system-display-on") {
this._isDisplayOff = false;
} else if (aTopic == "system-display-off") {
this._isDisplayOff = true;
}
let activeTabState = !this._inBackground && !this._notActive && !this._isDisplayOff;
if (this._timeoutID)
clearTimeout(this._timeoutID);
if (Browser.selectedTab.active != activeTabState) {
// On Maemo all backgrounded applications getting portrait orientation
// so if browser had landscape mode then we need timeout in order
// to finish last rotate/paint operation and have nice lookine browser in TS
this._timeoutID = setTimeout(function() { Browser.selectedTab.active = activeTabState; }, activeTabState ? 0 : kSetInactiveStateTimeout);
}
}
};
function getNotificationBox(aBrowser) {
return Browser.getNotificationBox(aBrowser);
}
function importDialog(aParent, aSrc, aArguments) {
// load the dialog with a synchronous XHR
let xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance();
xhr.open("GET", aSrc, false);
xhr.overrideMimeType("text/xml");
xhr.send(null);
if (!xhr.responseXML)
return null;
let currentNode;
let nodeIterator = xhr.responseXML.createNodeIterator(xhr.responseXML, NodeFilter.SHOW_TEXT, null, false);
while (currentNode = nodeIterator.nextNode()) {
let trimmed = currentNode.nodeValue.replace(/^\s\s*/, "").replace(/\s\s*$/, "");
if (!trimmed.length)
currentNode.parentNode.removeChild(currentNode);
}
let doc = xhr.responseXML.documentElement;
let dialog = null;
// we need to insert before context-container if we want allow pasting (using
// the context menu) into dialogs
let contentMenuContainer = document.getElementById("context-container");
let parentNode = contentMenuContainer.parentNode;
// emit DOMWillOpenModalDialog event
let event = document.createEvent("Events");
event.initEvent("DOMWillOpenModalDialog", true, false);
let dispatcher = aParent || getBrowser();
dispatcher.dispatchEvent(event);
// create a full-screen semi-opaque box as a background
let back = document.createElement("box");
back.setAttribute("class", "modal-block");
dialog = back.appendChild(document.importNode(doc, true));
parentNode.insertBefore(back, contentMenuContainer);
dialog.arguments = aArguments;
dialog.parent = aParent;
return dialog;
}
function showDownloadManager(aWindowContext, aID, aReason) {
BrowserUI.showPanel("downloads-container");
// TODO: select the download with aID
}
function Tab(aURI, aParams) {
this._id = null;
this._browser = null;
this._notification = null;
this._loading = false;
this._chromeTab = null;
this._metadata = null;
this.contentMightCaptureMouse = false;
this.owner = null;
this.hostChanged = false;
this.state = null;
// Set to 0 since new tabs that have not been viewed yet are good tabs to
// toss if app needs more memory.
this.lastSelected = 0;
// aParams is an object that contains some properties for the initial tab
// loading like flags, a referrerURI, a charset or even a postData.
this.create(aURI, aParams || {});
// default tabs to inactive (i.e. no display port)
this.active = false;
}
Tab.prototype = {
get browser() {
return this._browser;
},
get notification() {
return this._notification;
},
get chromeTab() {
return this._chromeTab;
},
get metadata() {
return this._metadata || kDefaultMetadata;
},
get inputHandler() {
if (!this._notification)
return null;
return this._notification.inputHandler;
},
/** Update browser styles when the viewport metadata changes. */
updateViewportMetadata: function updateViewportMetadata(aMetadata) {
if (aMetadata && aMetadata.autoScale) {
let scaleRatio = aMetadata.scaleRatio = Browser.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;
}
this._metadata = aMetadata;
this.updateViewportSize();
},
/**
* Update browser size when the metadata or the window size changes.
*/
updateViewportSize: function updateViewportSize() {
let browser = this._browser;
if (!browser)
return;
let screenW = ViewableAreaObserver.width;
let screenH = ViewableAreaObserver.height;
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)) : Browser.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.
let pageZoomLevel = this.getPageZoomLevel(screenW);
let minScale = this.clampZoomLevel(pageZoomLevel, pageZoomLevel);
viewportH = Math.max(viewportH, screenH / minScale);
if (browser.contentWindowWidth != viewportW || browser.contentWindowHeight != viewportH)
browser.setWindowSize(viewportW, viewportH);
},
restoreViewportPosition: function restoreViewportPosition(aOldWidth, aNewWidth) {
let browser = this._browser;
// zoom to keep the same portion of the document visible
let oldScale = browser.scale;
let newScale = this.clampZoomLevel(oldScale * aNewWidth / aOldWidth);
let scaleRatio = newScale / oldScale;
let view = browser.getRootView();
let pos = view.getPosition();
browser.fuzzyZoom(newScale, pos.x * scaleRatio, pos.y * scaleRatio);
browser.finishFuzzyZoom();
},
startLoading: function startLoading() {
if (this._loading) throw "Already Loading!";
this._loading = true;
},
endLoading: function endLoading() {
if (!this._loading) throw "Not Loading!";
this._loading = false;
if (this._drawThumb) {
this._drawThumb = false;
this.updateThumbnail();
}
},
isLoading: function isLoading() {
return this._loading;
},
create: function create(aURI, aParams) {
this._chromeTab = Elements.tabList.addTab();
let browser = this._createBrowser(aURI, null);
// Should we fully load the new browser, or wait until later
if ("delayLoad" in aParams && aParams.delayLoad)
return;
try {
let flags = 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;
browser.loadURIWithFlags(aURI, flags, referrerURI, charset, postData);
} catch(e) {
dump("Error: " + e + "\n");
}
},
destroy: function destroy() {
Elements.tabList.removeTab(this._chromeTab);
this._chromeTab = null;
this._destroyBrowser();
},
resurrect: function resurrect() {
let dead = this._browser;
let active = this.active;
// Hold onto the session store data
let session = { data: dead.__SS_data, extra: dead.__SS_extdata };
// We need this data to correctly create and position the new browser
// If this browser is already a zombie, fallback to the session data
let currentURL = dead.__SS_restore ? session.data.entries[0].url : dead.currentURI.spec;
let sibling = dead.nextSibling;
// Destory and re-create the browser
this._destroyBrowser();
let browser = this._createBrowser(currentURL, sibling);
if (active)
this.active = true;
// Reattach session store data and flag this browser so it is restored on select
browser.__SS_data = session.data;
browser.__SS_extdata = session.extra;
browser.__SS_restore = true;
},
_createBrowser: function _createBrowser(aURI, aInsertBefore) {
if (this._browser)
throw "Browser already exists";
// Create a notification box around the browser
let notification = this._notification = document.createElement("notificationbox");
notification.classList.add("inputHandler");
let browser = this._browser = document.createElement("browser");
browser.setAttribute("class", "viewable-width viewable-height");
this._chromeTab.linkedBrowser = browser;
browser.setAttribute("type", "content");
let useRemote = Services.prefs.getBoolPref("browser.tabs.remote");
let useLocal = Util.isLocalScheme(aURI);
browser.setAttribute("remote", (!useLocal && useRemote) ? "true" : "false");
// Append the browser to the document, which should start the page load
notification.appendChild(browser);
Elements.browsers.insertBefore(notification, aInsertBefore);
// stop about:blank from loading
browser.stop();
let fl = browser.QueryInterface(Ci.nsIFrameLoaderOwner).frameLoader;
fl.renderMode = Ci.nsIFrameLoader.RENDER_MODE_ASYNC_SCROLL;
return browser;
},
_destroyBrowser: function _destroyBrowser() {
if (this._browser) {
let notification = this._notification;
let browser = this._browser;
browser.active = false;
this._notification = null;
this._browser = null;
this._loading = false;
Elements.browsers.removeChild(notification);
}
},
/**
* Takes a scale and restricts it based on this tab's zoom limits.
* @param aScale The original scale.
* @param aPageZoomLevel (optional) The zoom-to-fit scale, if known.
* This is a performance optimization to avoid extra calls.
*/
clampZoomLevel: function clampZoomLevel(aScale, aPageZoomLevel) {
let md = this.metadata;
if (!this.allowZoom) {
return (md && md.defaultZoom)
? md.defaultZoom
: (aPageZoomLevel || this.getPageZoomLevel());
}
let browser = this._browser;
let bounded = Util.clamp(aScale, ZoomManager.MIN, ZoomManager.MAX);
if (md && md.minZoom)
bounded = Math.max(bounded, md.minZoom);
if (md && md.maxZoom)
bounded = Math.min(bounded, md.maxZoom);
bounded = Math.max(bounded, this.getPageZoomLevel());
let rounded = Math.round(bounded * kBrowserViewZoomLevelPrecision) / kBrowserViewZoomLevelPrecision;
return rounded || 1.0;
},
/** Record the initial zoom level when a page first loads. */
resetZoomLevel: function resetZoomLevel() {
this._defaultZoomLevel = this._browser.scale;
},
scrolledAreaChanged: function scrolledAreaChanged(firstPaint) {
if (!this._browser)
return;
if (firstPaint) {
// You only get one shot, do not miss your chance to reflow.
this.updateViewportSize();
}
this.updateDefaultZoomLevel();
},
/**
* Recalculate default zoom level when page size changes, and update zoom
* level if we are at default.
*/
updateDefaultZoomLevel: function updateDefaultZoomLevel() {
let browser = this._browser;
if (!browser || !this._firstPaint)
return;
let isDefault = this.isDefaultZoomLevel();
this._defaultZoomLevel = this.getDefaultZoomLevel();
if (isDefault) {
if (browser.scale != this._defaultZoomLevel) {
browser.scale = this._defaultZoomLevel;
} else {
// If the scale level has not changed we want to be sure the content
// render correctly since the page refresh process could have been
// stalled during page load. In this case if the page has the exact
// same width (like the same page, so by doing 'refresh') and the
// page was scrolled the content is just checkerboard at this point
// and this call ensure we render it correctly.
browser.getRootView()._updateCacheViewport();
}
} else {
// if we are reloading, the page will retain its scale. if it is zoomed
// we need to refresh the viewport so that we do not show checkerboard
browser.getRootView()._updateCacheViewport();
}
},
isDefaultZoomLevel: function isDefaultZoomLevel() {
return this._browser.scale == this._defaultZoomLevel;
},
getDefaultZoomLevel: function getDefaultZoomLevel() {
let md = this.metadata;
if (md && md.defaultZoom)
return this.clampZoomLevel(md.defaultZoom);
let browserWidth = this._browser.getBoundingClientRect().width;
let defaultZoom = browserWidth / this._browser.contentWindowWidth;
// If defaultZoom is "almost" 100%, zoom in to exactly 100% (bug 454456).
let granularity = Services.prefs.getIntPref("browser.ui.zoom.pageFitGranularity");
let threshold = 1 - 1 / granularity;
if (threshold < defaultZoom && defaultZoom < 1)
defaultZoom = 1;
return this.clampZoomLevel(defaultZoom);
},
/**
* @param aScreenWidth (optional) The width of the browser widget, if known.
* This is a performance optimization to save extra calls to getBoundingClientRect.
* @return The scale at which the browser will be zoomed out to fit the document width.
*/
getPageZoomLevel: function getPageZoomLevel(aScreenWidth) {
let browserW = this._browser.contentDocumentWidth;
if (browserW == 0)
return 1.0;
let screenW = aScreenWidth || this._browser.getBoundingClientRect().width;
return screenW / browserW;
},
get allowZoom() {
return this.metadata.allowZoom && !Util.isURLEmpty(this.browser.currentURI.spec);
},
_thumbnailWindowId: null,
updateThumbnail: function updateThumbnail(options) {
let options = options || {};
let browser = this._browser;
if (this._loading) {
this._drawThumb = true;
return;
}
let forceUpdate = ("force" in options && options.force);
// Do not repaint thumbnail if we already painted for this load. Bad things
// happen when we do async canvas draws in quick succession.
if (!forceUpdate && (!browser || this._thumbnailWindowId == browser.contentWindowId))
return;
// Do not try to paint thumbnails if contentWindowWidth/Height have not been
// set yet. This also blows up for async canvas draws.
if (!browser.contentWindowWidth || !browser.contentWindowHeight)
return;
this._thumbnailWindowId = browser.contentWindowId;
this._chromeTab.updateThumbnail(browser, browser.contentWindowWidth, browser.contentWindowHeight);
},
set active(aActive) {
if (!this._browser)
return;
let notification = this._notification;
let browser = this._browser;
if (aActive) {
browser.setAttribute("type", "content-primary");
Elements.browsers.selectedPanel = notification;
browser.active = true;
Elements.tabList.selectedTab = this._chromeTab;
browser.focus();
} else {
browser.messageManager.sendAsyncMessage("Browser:Blur", { });
browser.setAttribute("type", "content");
browser.active = false;
}
},
get active() {
if (!this._browser)
return false;
return this._browser.getAttribute("type") == "content-primary";
},
updateContentCapture: function() {
this._browser.messageManager.sendAsyncMessage("Browser:CanCaptureMouse", {});
},
toString: function() {
return "[Tab " + (this._browser ? this._browser.currentURI.spec : "(no browser)") + "]";
}
};
// Helper used to hide IPC / non-IPC differences for rendering to a canvas
function rendererFactory(aBrowser, aCanvas) {
let wrapper = {};
if (aBrowser.contentWindow) {
let ctx = aCanvas.getContext("2d");
let draw = function(browser, aLeft, aTop, aWidth, aHeight, aColor, aFlags) {
ctx.drawWindow(browser.contentWindow, aLeft, aTop, aWidth, aHeight, aColor, aFlags);
let e = document.createEvent("HTMLEvents");
e.initEvent("MozAsyncCanvasRender", true, true);
aCanvas.dispatchEvent(e);
};
wrapper.checkBrowser = function(browser) {
return browser.contentWindow;
};
wrapper.drawContent = function(callback) {
callback(ctx, draw);
};
}
else {
let ctx = aCanvas.MozGetIPCContext("2d");
let draw = function(browser, aLeft, aTop, aWidth, aHeight, aColor, aFlags) {
ctx.asyncDrawXULElement(browser, aLeft, aTop, aWidth, aHeight, aColor, aFlags);
};
wrapper.checkBrowser = function(browser) {
return !browser.contentWindow;
};
wrapper.drawContent = function(callback) {
callback(ctx, draw);
};
}
return wrapper;
};
/* ViewableAreaObserver is an helper object where width/height represents the
* size of the currently viewable area in pixels. This is use instead of
* window.innerHeight/innerWidth because some keyboards does not resize the
* window but floats over it.
*/
var ViewableAreaObserver = {
_ignoreTabletSidebar: false, // Don't leave room for the tablet tabs sidebar
get width() {
let width = this._width || window.innerWidth;
if (!this._ignoreTabletSidebar && Util.isTablet())
width -= this.sidebarWidth;
return width;
},
get height() {
let height = (this._height || window.innerHeight);
if (Util.isTablet())
height -= BrowserUI.toolbarH;
return height;
},
_sidebarWidth: null,
get sidebarWidth() {
if (!this._sidebarWidth)
this._sidebarWidth = Math.round(Elements.tabs.getBoundingClientRect().width);
return this._sidebarWidth;
},
_isKeyboardOpened: true,
get isKeyboardOpened() {
return this._isKeyboardOpened;
},
set isKeyboardOpened(aValue) {
if (!this.hasVirtualKeyboard())
return this._isKeyboardOpened;
let oldValue = this._isKeyboardOpened;
if (oldValue != aValue) {
this._isKeyboardOpened = aValue;
let event = document.createEvent("UIEvents");
event.initUIEvent("KeyboardChanged", true, false, window, aValue);
window.dispatchEvent(event);
}
},
hasVirtualKeyboard: function va_hasVirtualKeyboard() {
#ifndef ANDROID
#ifndef MOZ_PLATFORM_MAEMO
return false;
#endif
#endif
return true;
},
observe: function va_observe(aSubject, aTopic, aData) {
#if MOZ_PLATFORM_MAEMO == 6
let rect = Rect.fromRect(JSON.parse(aData));
let height = rect.bottom - rect.top;
let width = rect.right - rect.left;
if (height == window.innerHeight && width == window.innerWidth) {
this._height = null;
this._width = null;
}
else {
this._height = height;
this._width = width;
}
this.update();
#endif
},
update: function va_update(aParams) {
aParams = aParams || {};
if ("setIgnoreTabletSidebar" in aParams)
this._ignoreTabletSidebar = aParams.setIgnoreTabletSidebar;
this._sidebarWidth = null;
let oldHeight = parseInt(Browser.styles["viewable-height"].height);
let oldWidth = parseInt(Browser.styles["viewable-width"].width);
let newWidth = this.width;
let newHeight = this.height;
if (newHeight == oldHeight && newWidth == oldWidth)
return;
// Guess if the window has been resize to handle a virtual keyboard
this.isKeyboardOpened = (newHeight < oldHeight && newWidth == oldWidth);
Browser.styles["viewable-height"].height = newHeight + "px";
Browser.styles["viewable-height"].maxHeight = newHeight + "px";
Browser.styles["viewable-width"].width = newWidth + "px";
Browser.styles["viewable-width"].maxWidth = newWidth + "px";
// Don't update the viewport if screen height is shrinking, which typically
// means the keyboard appeared. This helps smooth out the experience of our
// form filler.
if (newHeight > oldHeight || newWidth != oldWidth) {
let startup = !oldHeight && !oldWidth;
for (let i = Browser.tabs.length - 1; i >= 0; i--) {
let tab = Browser.tabs[i];
let oldContentWindowWidth = tab.browser.contentWindowWidth;
tab.updateViewportSize(); // contentWindowWidth may change here.
// Don't bother updating the zoom level on startup
if (!startup) {
// If the viewport width is still the same, the page layout has not
// changed, so we can keep keep the same content on-screen.
if (tab.browser.contentWindowWidth == oldContentWindowWidth)
tab.restoreViewportPosition(oldWidth, newWidth);
tab.updateDefaultZoomLevel();
}
}
}
// setTimeout(callback, 0) to ensure the resize event handler dispatch is finished
setTimeout(function() {
let event = document.createEvent("Events");
event.initEvent("SizeChanged", true, false);
Elements.browsers.dispatchEvent(event);
}, 0);
}
};
Reference in New Issue View Git Blame Copy Permalink