gecko-dev/toolkit/content/browser-child.js

581 lines
17 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
let Cc = Components.classes;
let Ci = Components.interfaces;
let Cu = Components.utils;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import('resource://gre/modules/XPCOMUtils.jsm');
Cu.import("resource://gre/modules/RemoteAddonsChild.jsm");
Cu.import("resource://gre/modules/Timer.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "PageThumbUtils",
"resource://gre/modules/PageThumbUtils.jsm");
#ifdef MOZ_CRASHREPORTER
XPCOMUtils.defineLazyServiceGetter(this, "CrashReporter",
"@mozilla.org/xre/app-info;1",
"nsICrashReporter");
#endif
let FocusSyncHandler = {
init: function() {
sendAsyncMessage("SetSyncHandler", {}, {handler: this});
},
getFocusedElementAndWindow: function() {
let fm = Cc["@mozilla.org/focus-manager;1"].getService(Ci.nsIFocusManager);
let focusedWindow = {};
let elt = fm.getFocusedElementForWindow(content, true, focusedWindow);
return [elt, focusedWindow.value];
},
};
FocusSyncHandler.init();
let WebProgressListener = {
init: function() {
this._filter = Cc["@mozilla.org/appshell/component/browser-status-filter;1"]
.createInstance(Ci.nsIWebProgress);
this._filter.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_ALL);
let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebProgress);
webProgress.addProgressListener(this._filter, Ci.nsIWebProgress.NOTIFY_ALL);
},
uninit() {
let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebProgress);
webProgress.removeProgressListener(this._filter);
this._filter.removeProgressListener(this);
this._filter = null;
},
_requestSpec: function (aRequest, aPropertyName) {
if (!aRequest || !(aRequest instanceof Ci.nsIChannel))
return null;
return aRequest.QueryInterface(Ci.nsIChannel)[aPropertyName].spec;
},
_setupJSON: function setupJSON(aWebProgress, aRequest) {
if (aWebProgress) {
aWebProgress = {
isTopLevel: aWebProgress.isTopLevel,
isLoadingDocument: aWebProgress.isLoadingDocument,
loadType: aWebProgress.loadType
};
}
return {
webProgress: aWebProgress || null,
requestURI: this._requestSpec(aRequest, "URI"),
originalRequestURI: this._requestSpec(aRequest, "originalURI"),
documentContentType: content.document && content.document.contentType
};
},
_setupObjects: function setupObjects(aWebProgress) {
let domWindow;
try {
domWindow = aWebProgress && aWebProgress.DOMWindow;
} catch (e) {
// If nsDocShell::Destroy has already been called, then we'll
// get NS_NOINTERFACE when trying to get the DOM window. Ignore
// that here.
domWindow = null;
}
return {
contentWindow: content,
// DOMWindow is not necessarily the content-window with subframes.
DOMWindow: domWindow
};
},
onStateChange: function onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
let json = this._setupJSON(aWebProgress, aRequest);
let objects = this._setupObjects(aWebProgress);
json.stateFlags = aStateFlags;
json.status = aStatus;
sendAsyncMessage("Content:StateChange", json, objects);
},
onProgressChange: function onProgressChange(aWebProgress, aRequest, aCurSelf, aMaxSelf, aCurTotal, aMaxTotal) {
let json = this._setupJSON(aWebProgress, aRequest);
let objects = this._setupObjects(aWebProgress);
json.curSelf = aCurSelf;
json.maxSelf = aMaxSelf;
json.curTotal = aCurTotal;
json.maxTotal = aMaxTotal;
sendAsyncMessage("Content:ProgressChange", json, objects);
},
onProgressChange64: function onProgressChange(aWebProgress, aRequest, aCurSelf, aMaxSelf, aCurTotal, aMaxTotal) {
this.onProgressChange(aWebProgress, aRequest, aCurSelf, aMaxSelf, aCurTotal, aMaxTotal);
},
onLocationChange: function onLocationChange(aWebProgress, aRequest, aLocationURI, aFlags) {
let json = this._setupJSON(aWebProgress, aRequest);
let objects = this._setupObjects(aWebProgress);
json.location = aLocationURI ? aLocationURI.spec : "";
json.flags = aFlags;
// These properties can change even for a sub-frame navigation.
json.canGoBack = docShell.canGoBack;
json.canGoForward = docShell.canGoForward;
if (aWebProgress && aWebProgress.isTopLevel) {
json.documentURI = content.document.documentURIObject.spec;
json.charset = content.document.characterSet;
json.mayEnableCharacterEncodingMenu = docShell.mayEnableCharacterEncodingMenu;
json.principal = content.document.nodePrincipal;
}
sendAsyncMessage("Content:LocationChange", json, objects);
},
onStatusChange: function onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {
let json = this._setupJSON(aWebProgress, aRequest);
let objects = this._setupObjects(aWebProgress);
json.status = aStatus;
json.message = aMessage;
sendAsyncMessage("Content:StatusChange", json, objects);
},
onSecurityChange: function onSecurityChange(aWebProgress, aRequest, aState) {
let json = this._setupJSON(aWebProgress, aRequest);
let objects = this._setupObjects(aWebProgress);
json.state = aState;
json.status = SecurityUI.getSSLStatusAsString();
sendAsyncMessage("Content:SecurityChange", json, objects);
},
onRefreshAttempted: function onRefreshAttempted(aWebProgress, aURI, aDelay, aSameURI) {
return true;
},
QueryInterface: function QueryInterface(aIID) {
if (aIID.equals(Ci.nsIWebProgressListener) ||
aIID.equals(Ci.nsIWebProgressListener2) ||
aIID.equals(Ci.nsISupportsWeakReference) ||
aIID.equals(Ci.nsISupports)) {
return this;
}
throw Components.results.NS_ERROR_NO_INTERFACE;
}
};
WebProgressListener.init();
addEventListener("unload", () => {
WebProgressListener.uninit();
});
let WebNavigation = {
init: function() {
addMessageListener("WebNavigation:GoBack", this);
addMessageListener("WebNavigation:GoForward", this);
addMessageListener("WebNavigation:GotoIndex", this);
addMessageListener("WebNavigation:LoadURI", this);
addMessageListener("WebNavigation:Reload", this);
addMessageListener("WebNavigation:Stop", this);
this._webNavigation = docShell.QueryInterface(Ci.nsIWebNavigation);
this._sessionHistory = this._webNavigation.sessionHistory;
// Send a CPOW for the sessionHistory object. We need to make sure
// it stays alive as long as the content script since CPOWs are
// weakly held.
let history = this._sessionHistory;
sendAsyncMessage("WebNavigation:setHistory", {}, {history: history});
},
receiveMessage: function(message) {
switch (message.name) {
case "WebNavigation:GoBack":
this.goBack();
break;
case "WebNavigation:GoForward":
this.goForward();
break;
case "WebNavigation:GotoIndex":
this.gotoIndex(message.data.index);
break;
case "WebNavigation:LoadURI":
this.loadURI(message.data.uri, message.data.flags, message.data.referrer);
break;
case "WebNavigation:Reload":
this.reload(message.data.flags);
break;
case "WebNavigation:Stop":
this.stop(message.data.flags);
break;
}
},
goBack: function() {
if (this._webNavigation.canGoBack) {
this._webNavigation.goBack();
}
},
goForward: function() {
if (this._webNavigation.canGoForward)
this._webNavigation.goForward();
},
gotoIndex: function(index) {
this._webNavigation.gotoIndex(index);
},
loadURI: function(uri, flags, referrer) {
#ifdef MOZ_CRASHREPORTER
if (CrashReporter.enabled)
CrashReporter.annotateCrashReport("URL", uri);
#endif
if (referrer)
referrer = Services.io.newURI(referrer, null, null);
this._webNavigation.loadURI(uri, flags, referrer, null, null);
},
reload: function(flags) {
this._webNavigation.reload(flags);
},
stop: function(flags) {
this._webNavigation.stop(flags);
}
};
WebNavigation.init();
let SecurityUI = {
getSSLStatusAsString: function() {
let status = docShell.securityUI.QueryInterface(Ci.nsISSLStatusProvider).SSLStatus;
if (status) {
let helper = Cc["@mozilla.org/network/serialization-helper;1"]
.getService(Ci.nsISerializationHelper);
status.QueryInterface(Ci.nsISerializable);
return helper.serializeToString(status);
}
return null;
}
};
let ControllerCommands = {
init: function () {
addMessageListener("ControllerCommands:Do", this);
},
receiveMessage: function(message) {
switch(message.name) {
case "ControllerCommands:Do":
if (docShell.isCommandEnabled(message.data))
docShell.doCommand(message.data);
break;
}
}
}
ControllerCommands.init()
addEventListener("DOMTitleChanged", function (aEvent) {
let document = content.document;
switch (aEvent.type) {
case "DOMTitleChanged":
if (!aEvent.isTrusted || aEvent.target.defaultView != content)
return;
sendAsyncMessage("DOMTitleChanged", { title: document.title });
break;
}
}, false);
addEventListener("DOMWindowClose", function (aEvent) {
if (!aEvent.isTrusted)
return;
sendAsyncMessage("DOMWindowClose");
aEvent.preventDefault();
}, false);
addEventListener("ImageContentLoaded", function (aEvent) {
if (content.document instanceof Ci.nsIImageDocument) {
let req = content.document.imageRequest;
if (!req.image)
return;
sendAsyncMessage("ImageDocumentLoaded", { width: req.image.width,
height: req.image.height });
}
}, false);
let DocumentObserver = {
init: function() {
Services.obs.addObserver(this, "document-element-inserted", false);
addEventListener("unload", () => {
Services.obs.removeObserver(this, "document-element-inserted");
});
},
observe: function(aSubject, aTopic, aData) {
if (aSubject == content.document) {
sendAsyncMessage("DocumentInserted", {synthetic: aSubject.mozSyntheticDocument});
}
},
};
DocumentObserver.init();
const ZoomManager = {
get fullZoom() {
return this._cache.fullZoom;
},
get textZoom() {
return this._cache.textZoom;
},
set fullZoom(value) {
this._cache.fullZoom = value;
this._markupViewer.fullZoom = value;
},
set textZoom(value) {
this._cache.textZoom = value;
this._markupViewer.textZoom = value;
},
refreshFullZoom: function() {
return this._refreshZoomValue('fullZoom');
},
refreshTextZoom: function() {
return this._refreshZoomValue('textZoom');
},
/**
* Retrieves specified zoom property value from markupViewer and refreshes
* cache if needed.
* @param valueName Either 'fullZoom' or 'textZoom'.
* @returns Returns true if cached value was actually refreshed.
* @private
*/
_refreshZoomValue: function(valueName) {
let actualZoomValue = this._markupViewer[valueName];
if (actualZoomValue != this._cache[valueName]) {
this._cache[valueName] = actualZoomValue;
return true;
}
return false;
},
get _markupViewer() {
return docShell.contentViewer;
},
_cache: {
fullZoom: NaN,
textZoom: NaN
}
};
addMessageListener("FullZoom", function (aMessage) {
ZoomManager.fullZoom = aMessage.data.value;
});
addMessageListener("TextZoom", function (aMessage) {
ZoomManager.textZoom = aMessage.data.value;
});
addEventListener("FullZoomChange", function () {
if (ZoomManager.refreshFullZoom()) {
sendAsyncMessage("FullZoomChange", { value: ZoomManager.fullZoom});
}
}, false);
addEventListener("TextZoomChange", function (aEvent) {
if (ZoomManager.refreshTextZoom()) {
sendAsyncMessage("TextZoomChange", { value: ZoomManager.textZoom});
}
}, false);
addEventListener("ZoomChangeUsingMouseWheel", function () {
sendAsyncMessage("ZoomChangeUsingMouseWheel", {});
}, false);
addMessageListener("UpdateCharacterSet", function (aMessage) {
docShell.charset = aMessage.data.value;
docShell.gatherCharsetMenuTelemetry();
});
/**
* Remote thumbnail request handler for PageThumbs thumbnails.
*/
addMessageListener("Browser:Thumbnail:Request", function (aMessage) {
let thumbnail = content.document.createElementNS(PageThumbUtils.HTML_NAMESPACE,
"canvas");
thumbnail.mozOpaque = true;
thumbnail.mozImageSmoothingEnabled = true;
thumbnail.width = aMessage.data.canvasWidth;
thumbnail.height = aMessage.data.canvasHeight;
let [width, height, scale] =
PageThumbUtils.determineCropSize(content, thumbnail);
let ctx = thumbnail.getContext("2d");
ctx.save();
ctx.scale(scale, scale);
ctx.drawWindow(content, 0, 0, width, height,
aMessage.data.background,
ctx.DRAWWINDOW_DO_NOT_FLUSH);
ctx.restore();
thumbnail.toBlob(function (aBlob) {
sendAsyncMessage("Browser:Thumbnail:Response", {
thumbnail: aBlob,
id: aMessage.data.id
});
});
});
// The AddonsChild needs to be rooted so that it stays alive as long as
// the tab.
let AddonsChild = RemoteAddonsChild.init(this);
addEventListener("unload", () => {
RemoteAddonsChild.uninit(AddonsChild);
});
addMessageListener("NetworkPrioritizer:AdjustPriority", (msg) => {
let webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
let loadGroup = webNav.QueryInterface(Ci.nsIDocumentLoader)
.loadGroup.QueryInterface(Ci.nsISupportsPriority);
loadGroup.adjustPriority(msg.data.adjustment);
});
let DOMFullscreenManager = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
init: function() {
Services.obs.addObserver(this, "ask-parent-to-exit-fullscreen", false);
Services.obs.addObserver(this, "ask-parent-to-rollback-fullscreen", false);
addMessageListener("DOMFullscreen:ChildrenMustExit", () => {
let utils = content.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils);
utils.exitFullscreen();
});
addEventListener("unload", () => {
Services.obs.removeObserver(this, "ask-parent-to-exit-fullscreen");
Services.obs.removeObserver(this, "ask-parent-to-rollback-fullscreen");
});
},
observe: function(aSubject, aTopic, aData) {
// Observer notifications are global, which means that these notifications
// might be coming from elements that are not actually children within this
// windows' content. We should ignore those. This will not be necessary once
// we fix bug 1053413 and stop using observer notifications for this stuff.
if (aSubject.defaultView.top !== content) {
return;
}
switch (aTopic) {
case "ask-parent-to-exit-fullscreen": {
sendAsyncMessage("DOMFullscreen:RequestExit");
break;
}
case "ask-parent-to-rollback-fullscreen": {
sendAsyncMessage("DOMFullscreen:RequestRollback");
break;
}
}
},
};
DOMFullscreenManager.init();
let AutoCompletePopup = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIAutoCompletePopup]),
init: function() {
// Hook up the form fill autocomplete controller.
let controller = Cc["@mozilla.org/satchel/form-fill-controller;1"]
.getService(Ci.nsIFormFillController);
controller.attachToBrowser(docShell, this.QueryInterface(Ci.nsIAutoCompletePopup));
this._input = null;
this._popupOpen = false;
addMessageListener("FormAutoComplete:HandleEnter", message => {
this.selectedIndex = message.data.selectedIndex;
let controller = Components.classes["@mozilla.org/autocomplete/controller;1"].
getService(Components.interfaces.nsIAutoCompleteController);
controller.handleEnter(message.data.isPopupSelection);
});
},
get input () { return this._input; },
get overrideValue () { return null; },
set selectedIndex (index) { },
get selectedIndex () {
// selectedIndex getter must be synchronous because we need the
// correct value when the controller is in controller::HandleEnter.
// We can't easily just let the parent inform us the new value every
// time it changes because not every action that can change the
// selectedIndex is trivial to catch (e.g. moving the mouse over the
// list).
return sendSyncMessage("FormAutoComplete:GetSelectedIndex", {});
},
get popupOpen () {
return this._popupOpen;
},
openAutocompletePopup: function (input, element) {
this._input = input;
this._popupOpen = true;
},
closePopup: function () {
this._popupOpen = false;
sendAsyncMessage("FormAutoComplete:ClosePopup", {});
},
invalidate: function () {
},
selectBy: function(reverse, page) {
this._index = sendSyncMessage("FormAutoComplete:SelectBy", {
reverse: reverse,
page: page
});
}
}
// We may not get any responses to Browser:Init if the browser element
// is torn down too quickly.
let initData = sendSyncMessage("Browser:Init");
if (initData.length) {
docShell.useGlobalHistory = initData[0].useGlobalHistory;
if (initData[0].initPopup) {
setTimeout(() => AutoCompletePopup.init(), 0);
}
}