mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
Bug 835548 - Refactor BrowserElementParent.js into a .js and .jsm, and speed up message registration. r=jlebar
--HG-- rename : dom/browser-element/BrowserElementParent.js => dom/browser-element/BrowserElementParent.jsm
This commit is contained in:
Fabrice Desré
parent
c14bc277cc
commit
3c88efcceb
@ -25,11 +25,21 @@ function debug(msg) {
|
||||
}
|
||||
|
||||
function sendAsyncMsg(msg, data) {
|
||||
sendAsyncMessage('browser-element-api:' + msg, data);
|
||||
if (!data) {
|
||||
data = { };
|
||||
}
|
||||
|
||||
data.msg_name = msg;
|
||||
sendAsyncMessage('browser-element-api:call', data);
|
||||
}
|
||||
|
||||
function sendSyncMsg(msg, data) {
|
||||
return sendSyncMessage('browser-element-api:' + msg, data);
|
||||
if (!data) {
|
||||
data = { };
|
||||
}
|
||||
|
||||
data.msg_name = msg;
|
||||
return sendSyncMessage('browser-element-api:call', data);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -116,29 +126,34 @@ BrowserElementChild.prototype = {
|
||||
sendAsyncMsg('firstpaint');
|
||||
});
|
||||
|
||||
var self = this;
|
||||
function addMsgListener(msg, handler) {
|
||||
addMessageListener('browser-element-api:' + msg, handler.bind(self));
|
||||
let self = this;
|
||||
|
||||
let mmCalls = {
|
||||
"purge-history": this._recvPurgeHistory,
|
||||
"get-screenshot": this._recvGetScreenshot,
|
||||
"set-visible": this._recvSetVisible,
|
||||
"get-visible": this._recvVisible,
|
||||
"send-mouse-event": this._recvSendMouseEvent,
|
||||
"send-touch-event": this._recvSendTouchEvent,
|
||||
"get-can-go-back": this._recvCanGoBack,
|
||||
"get-can-go-forward": this._recvCanGoForward,
|
||||
"go-back": this._recvGoBack,
|
||||
"go-forward": this._recvGoForward,
|
||||
"reload": this._recvReload,
|
||||
"stop": this._recvStop,
|
||||
"unblock-modal-prompt": this._recvStopWaiting,
|
||||
"fire-ctx-callback": this._recvFireCtxCallback,
|
||||
"owner-visibility-change": this._recvOwnerVisibilityChange,
|
||||
"exit-fullscreen": this._recvExitFullscreen.bind(this),
|
||||
"activate-next-paint-listener": this._activateNextPaintListener.bind(this),
|
||||
"deactivate-next-paint-listener": this._deactivateNextPaintListener.bind(this)
|
||||
}
|
||||
|
||||
addMsgListener("purge-history", this._recvPurgeHistory);
|
||||
addMsgListener("get-screenshot", this._recvGetScreenshot);
|
||||
addMsgListener("set-visible", this._recvSetVisible);
|
||||
addMsgListener("get-visible", this._recvVisible);
|
||||
addMsgListener("send-mouse-event", this._recvSendMouseEvent);
|
||||
addMsgListener("send-touch-event", this._recvSendTouchEvent);
|
||||
addMsgListener("get-can-go-back", this._recvCanGoBack);
|
||||
addMsgListener("get-can-go-forward", this._recvCanGoForward);
|
||||
addMsgListener("go-back", this._recvGoBack);
|
||||
addMsgListener("go-forward", this._recvGoForward);
|
||||
addMsgListener("reload", this._recvReload);
|
||||
addMsgListener("stop", this._recvStop);
|
||||
addMsgListener("unblock-modal-prompt", this._recvStopWaiting);
|
||||
addMsgListener("fire-ctx-callback", this._recvFireCtxCallback);
|
||||
addMsgListener("owner-visibility-change", this._recvOwnerVisibilityChange);
|
||||
addMsgListener("exit-fullscreen", this._recvExitFullscreen.bind(this));
|
||||
addMsgListener("activate-next-paint-listener", this._activateNextPaintListener.bind(this));
|
||||
addMsgListener("deactivate-next-paint-listener", this._deactivateNextPaintListener.bind(this));
|
||||
addMessageListener("browser-element-api:call", function(aMessage) {
|
||||
if (aMessage.data.msg_name in mmCalls) {
|
||||
return mmCalls[aMessage.data.msg_name].apply(self, arguments);
|
||||
}
|
||||
});
|
||||
|
||||
let els = Cc["@mozilla.org/eventlistenerservice;1"]
|
||||
.getService(Ci.nsIEventListenerService);
|
||||
@ -186,7 +201,7 @@ BrowserElementChild.prototype = {
|
||||
return;
|
||||
switch (topic) {
|
||||
case 'fullscreen-origin-change':
|
||||
sendAsyncMsg('fullscreen-origin-change', data);
|
||||
sendAsyncMsg('fullscreen-origin-change', { _payload_: data });
|
||||
break;
|
||||
case 'ask-parent-to-exit-fullscreen':
|
||||
sendAsyncMsg('exit-fullscreen');
|
||||
@ -342,7 +357,7 @@ BrowserElementChild.prototype = {
|
||||
// Ignore titlechanges which don't come from the top-level
|
||||
// <iframe mozbrowser> window.
|
||||
if (win == content) {
|
||||
sendAsyncMsg('titlechange', e.target.title);
|
||||
sendAsyncMsg('titlechange', { _payload_: e.target.title });
|
||||
}
|
||||
else {
|
||||
debug("Not top level!");
|
||||
@ -360,7 +375,7 @@ BrowserElementChild.prototype = {
|
||||
// Ignore iconchanges which don't come from the top-level
|
||||
// <iframe mozbrowser> window.
|
||||
if (win == content) {
|
||||
sendAsyncMsg('iconchange', e.target.href);
|
||||
sendAsyncMsg('iconchange', { _payload_: e.target.href });
|
||||
}
|
||||
else {
|
||||
debug("Not top level!");
|
||||
@ -762,7 +777,7 @@ BrowserElementChild.prototype = {
|
||||
location = Cc["@mozilla.org/docshell/urifixup;1"]
|
||||
.getService(Ci.nsIURIFixup).createExposableURI(location);
|
||||
|
||||
sendAsyncMsg('locationchange', location.spec);
|
||||
sendAsyncMsg('locationchange', { _payload_: location.spec });
|
||||
},
|
||||
|
||||
onStateChange: function(webProgress, request, stateFlags, status) {
|
||||
@ -787,7 +802,7 @@ BrowserElementChild.prototype = {
|
||||
|
||||
// TODO See nsDocShell::DisplayLoadError for a list of all the error
|
||||
// codes (the status param) we should eventually handle here.
|
||||
sendAsyncMsg('error', {type: 'other'});
|
||||
sendAsyncMsg('error', { type: 'other' });
|
||||
}
|
||||
},
|
||||
|
||||
@ -814,7 +829,7 @@ BrowserElementChild.prototype = {
|
||||
// XXX Until bug 764496 is fixed, this will always return false.
|
||||
var isEV = !!(state & Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL);
|
||||
|
||||
sendAsyncMsg('securitychange', {state: stateDesc, extendedValidation: isEV});
|
||||
sendAsyncMsg('securitychange', { state: stateDesc, extendedValidation: isEV });
|
||||
},
|
||||
|
||||
onStatusChange: function(webProgress, request, status, message) {},
|
||||
|
||||
@ -11,64 +11,13 @@ let Cr = Components.results;
|
||||
|
||||
Cu.import("resource://gre/modules/Services.jsm");
|
||||
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
|
||||
Cu.import("resource://gre/modules/BrowserElementPromptService.jsm");
|
||||
|
||||
XPCOMUtils.defineLazyGetter(this, "DOMApplicationRegistry", function () {
|
||||
Cu.import("resource://gre/modules/Webapps.jsm");
|
||||
return DOMApplicationRegistry;
|
||||
});
|
||||
Cu.import("resource://gre/modules/BrowserElementParent.jsm");
|
||||
|
||||
const NS_PREFBRANCH_PREFCHANGE_TOPIC_ID = "nsPref:changed";
|
||||
const BROWSER_FRAMES_ENABLED_PREF = "dom.mozBrowserFramesEnabled";
|
||||
const TOUCH_EVENTS_ENABLED_PREF = "dom.w3c_touch_events.enabled";
|
||||
|
||||
function debug(msg) {
|
||||
//dump("BrowserElementParent - " + msg + "\n");
|
||||
}
|
||||
|
||||
function getBoolPref(prefName, def) {
|
||||
try {
|
||||
return Services.prefs.getBoolPref(prefName);
|
||||
}
|
||||
catch(err) {
|
||||
return def;
|
||||
}
|
||||
}
|
||||
|
||||
function getIntPref(prefName, def) {
|
||||
try {
|
||||
return Services.prefs.getIntPref(prefName);
|
||||
}
|
||||
catch(err) {
|
||||
return def;
|
||||
}
|
||||
}
|
||||
|
||||
function exposeAll(obj) {
|
||||
// Filter for Objects and Arrays.
|
||||
if (typeof obj !== "object" || !obj)
|
||||
return;
|
||||
|
||||
// Recursively expose our children.
|
||||
Object.keys(obj).forEach(function(key) {
|
||||
exposeAll(obj[key]);
|
||||
});
|
||||
|
||||
// If we're not an Array, generate an __exposedProps__ object for ourselves.
|
||||
if (obj instanceof Array)
|
||||
return;
|
||||
var exposed = {};
|
||||
Object.keys(obj).forEach(function(key) {
|
||||
exposed[key] = 'rw';
|
||||
});
|
||||
obj.__exposedProps__ = exposed;
|
||||
}
|
||||
|
||||
function defineAndExpose(obj, name, value) {
|
||||
obj[name] = value;
|
||||
if (!('__exposedProps__' in obj))
|
||||
obj.__exposedProps__ = {};
|
||||
obj.__exposedProps__[name] = 'r';
|
||||
//dump("BrowserElementParent.js - " + msg + "\n");
|
||||
}
|
||||
|
||||
/**
|
||||
@ -79,9 +28,8 @@ function defineAndExpose(obj, name, value) {
|
||||
* contained inside a <iframe mozbrowser> and creates a BrowserElementParent
|
||||
* object for that window.
|
||||
*
|
||||
* BrowserElementParent injects script to listen for certain events in the
|
||||
* child. We then listen to messages from the child script and take
|
||||
* appropriate action here in the parent.
|
||||
* It creates a BrowserElementParent that injects script to listen for
|
||||
* certain event.
|
||||
*/
|
||||
|
||||
function BrowserElementParentFactory() {
|
||||
@ -105,8 +53,7 @@ BrowserElementParentFactory.prototype = {
|
||||
// If the pref is disabled, do nothing except wait for the pref to change.
|
||||
// (This is important for tests, if nothing else.)
|
||||
if (!this._browserFramesPrefEnabled()) {
|
||||
var prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
|
||||
prefs.addObserver(BROWSER_FRAMES_ENABLED_PREF, this, /* ownsWeak = */ true);
|
||||
Services.prefs.addObserver(BROWSER_FRAMES_ENABLED_PREF, this, /* ownsWeak = */ true);
|
||||
return;
|
||||
}
|
||||
|
||||
@ -118,15 +65,13 @@ BrowserElementParentFactory.prototype = {
|
||||
// alive for as long as its frame element lives.
|
||||
this._bepMap = new WeakMap();
|
||||
|
||||
var os = Cc["@mozilla.org/observer-service;1"].getService(Ci.nsIObserverService);
|
||||
os.addObserver(this, 'remote-browser-frame-shown', /* ownsWeak = */ true);
|
||||
os.addObserver(this, 'in-process-browser-or-app-frame-shown', /* ownsWeak = */ true);
|
||||
Services.obs.addObserver(this, 'remote-browser-frame-shown', /* ownsWeak = */ true);
|
||||
Services.obs.addObserver(this, 'in-process-browser-or-app-frame-shown', /* ownsWeak = */ true);
|
||||
},
|
||||
|
||||
_browserFramesPrefEnabled: function() {
|
||||
var prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
|
||||
try {
|
||||
return prefs.getBoolPref(BROWSER_FRAMES_ENABLED_PREF);
|
||||
return Services.prefs.getBoolPref(BROWSER_FRAMES_ENABLED_PREF);
|
||||
}
|
||||
catch(e) {
|
||||
return false;
|
||||
@ -145,7 +90,7 @@ BrowserElementParentFactory.prototype = {
|
||||
|
||||
_createBrowserElementParent: function(frameLoader, hasRemoteFrame) {
|
||||
let frameElement = frameLoader.QueryInterface(Ci.nsIFrameLoader).ownerElement;
|
||||
this._bepMap.set(frameElement, new BrowserElementParent(frameLoader, hasRemoteFrame));
|
||||
this._bepMap.set(frameElement, BrowserElementParentBuilder.create(frameLoader, hasRemoteFrame));
|
||||
},
|
||||
|
||||
observe: function(subject, topic, data) {
|
||||
@ -171,527 +116,4 @@ BrowserElementParentFactory.prototype = {
|
||||
},
|
||||
};
|
||||
|
||||
function BrowserElementParent(frameLoader, hasRemoteFrame) {
|
||||
debug("Creating new BrowserElementParent object for " + frameLoader);
|
||||
this._domRequestCounter = 0;
|
||||
this._pendingDOMRequests = {};
|
||||
this._hasRemoteFrame = hasRemoteFrame;
|
||||
this._nextPaintListeners = [];
|
||||
|
||||
this._frameLoader = frameLoader;
|
||||
this._frameElement = frameLoader.QueryInterface(Ci.nsIFrameLoader).ownerElement;
|
||||
if (!this._frameElement) {
|
||||
debug("No frame element?");
|
||||
return;
|
||||
}
|
||||
|
||||
this._mm = frameLoader.messageManager;
|
||||
|
||||
// Messages we receive are handed to functions which take a (data) argument,
|
||||
// where |data| is the message manager's data object.
|
||||
|
||||
let self = this;
|
||||
function addMessageListener(msg, handler) {
|
||||
function checkedHandler() {
|
||||
if (self._isAlive()) {
|
||||
return handler.apply(self, arguments);
|
||||
}
|
||||
}
|
||||
self._mm.addMessageListener('browser-element-api:' + msg, checkedHandler);
|
||||
}
|
||||
|
||||
addMessageListener("hello", this._recvHello);
|
||||
addMessageListener("get-name", this._recvGetName);
|
||||
addMessageListener("get-fullscreen-allowed", this._recvGetFullscreenAllowed);
|
||||
addMessageListener("contextmenu", this._fireCtxMenuEvent);
|
||||
addMessageListener("locationchange", this._fireEventFromMsg);
|
||||
addMessageListener("loadstart", this._fireEventFromMsg);
|
||||
addMessageListener("loadend", this._fireEventFromMsg);
|
||||
addMessageListener("titlechange", this._fireEventFromMsg);
|
||||
addMessageListener("iconchange", this._fireEventFromMsg);
|
||||
addMessageListener("close", this._fireEventFromMsg);
|
||||
addMessageListener("securitychange", this._fireEventFromMsg);
|
||||
addMessageListener("error", this._fireEventFromMsg);
|
||||
addMessageListener("scroll", this._fireEventFromMsg);
|
||||
addMessageListener("firstpaint", this._fireEventFromMsg);
|
||||
addMessageListener("documentfirstpaint", this._fireEventFromMsg);
|
||||
addMessageListener("nextpaint", this._recvNextPaint);
|
||||
addMessageListener("keyevent", this._fireKeyEvent);
|
||||
addMessageListener("showmodalprompt", this._handleShowModalPrompt);
|
||||
addMessageListener('got-purge-history', this._gotDOMRequestResult);
|
||||
addMessageListener('got-screenshot', this._gotDOMRequestResult);
|
||||
addMessageListener('got-can-go-back', this._gotDOMRequestResult);
|
||||
addMessageListener('got-can-go-forward', this._gotDOMRequestResult);
|
||||
addMessageListener('fullscreen-origin-change', this._remoteFullscreenOriginChange);
|
||||
addMessageListener('rollback-fullscreen', this._remoteFrameFullscreenReverted);
|
||||
addMessageListener('exit-fullscreen', this._exitFullscreen);
|
||||
addMessageListener('got-visible', this._gotDOMRequestResult);
|
||||
|
||||
let os = Cc["@mozilla.org/observer-service;1"].getService(Ci.nsIObserverService);
|
||||
os.addObserver(this, 'ask-children-to-exit-fullscreen', /* ownsWeak = */ true);
|
||||
os.addObserver(this, 'oop-frameloader-crashed', /* ownsWeak = */ true);
|
||||
|
||||
function defineMethod(name, fn) {
|
||||
XPCNativeWrapper.unwrap(self._frameElement)[name] = function() {
|
||||
if (self._isAlive()) {
|
||||
return fn.apply(self, arguments);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
function defineDOMRequestMethod(domName, msgName) {
|
||||
XPCNativeWrapper.unwrap(self._frameElement)[domName] = function() {
|
||||
if (self._isAlive()) {
|
||||
return self._sendDOMRequest(msgName);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
// Define methods on the frame element.
|
||||
defineMethod('setVisible', this._setVisible);
|
||||
defineDOMRequestMethod('getVisible', 'get-visible');
|
||||
defineMethod('sendMouseEvent', this._sendMouseEvent);
|
||||
|
||||
// 0 = disabled, 1 = enabled, 2 - auto detect
|
||||
if (getIntPref(TOUCH_EVENTS_ENABLED_PREF, 0) != 0) {
|
||||
defineMethod('sendTouchEvent', this._sendTouchEvent);
|
||||
}
|
||||
defineMethod('goBack', this._goBack);
|
||||
defineMethod('goForward', this._goForward);
|
||||
defineMethod('reload', this._reload);
|
||||
defineMethod('stop', this._stop);
|
||||
defineMethod('purgeHistory', this._purgeHistory);
|
||||
defineMethod('getScreenshot', this._getScreenshot);
|
||||
defineMethod('addNextPaintListener', this._addNextPaintListener);
|
||||
defineMethod('removeNextPaintListener', this._removeNextPaintListener);
|
||||
defineDOMRequestMethod('getCanGoBack', 'get-can-go-back');
|
||||
defineDOMRequestMethod('getCanGoForward', 'get-can-go-forward');
|
||||
|
||||
// Listen to visibilitychange on the iframe's owner window, and forward it
|
||||
// down to the child.
|
||||
this._window.addEventListener('visibilitychange',
|
||||
this._ownerVisibilityChange.bind(this),
|
||||
/* useCapture = */ false,
|
||||
/* wantsUntrusted = */ false);
|
||||
|
||||
// Insert ourself into the prompt service.
|
||||
BrowserElementPromptService.mapFrameToBrowserElementParent(this._frameElement, this);
|
||||
|
||||
// If this browser represents an app then let the Webapps module register for
|
||||
// any messages that it needs.
|
||||
let appManifestURL =
|
||||
this._frameElement.QueryInterface(Ci.nsIMozBrowserFrame).appManifestURL;
|
||||
if (appManifestURL) {
|
||||
let appId =
|
||||
DOMApplicationRegistry.getAppLocalIdByManifestURL(appManifestURL);
|
||||
if (appId != Ci.nsIScriptSecurityManager.NO_APP_ID) {
|
||||
DOMApplicationRegistry.registerBrowserElementParentForApp(this, appId);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
BrowserElementParent.prototype = {
|
||||
|
||||
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
|
||||
Ci.nsISupportsWeakReference]),
|
||||
|
||||
/**
|
||||
* You shouldn't touch this._frameElement or this._window if _isAlive is
|
||||
* false. (You'll likely get an exception if you do.)
|
||||
*/
|
||||
_isAlive: function() {
|
||||
return !Cu.isDeadWrapper(this._frameElement) &&
|
||||
!Cu.isDeadWrapper(this._frameElement.ownerDocument) &&
|
||||
!Cu.isDeadWrapper(this._frameElement.ownerDocument.defaultView);
|
||||
},
|
||||
|
||||
get _window() {
|
||||
return this._frameElement.ownerDocument.defaultView;
|
||||
},
|
||||
|
||||
get _windowUtils() {
|
||||
return this._window.QueryInterface(Ci.nsIInterfaceRequestor)
|
||||
.getInterface(Ci.nsIDOMWindowUtils);
|
||||
},
|
||||
|
||||
promptAuth: function(authDetail, callback) {
|
||||
let evt;
|
||||
let self = this;
|
||||
let callbackCalled = false;
|
||||
let cancelCallback = function() {
|
||||
if (!callbackCalled) {
|
||||
callbackCalled = true;
|
||||
callback(false, null, null);
|
||||
}
|
||||
};
|
||||
|
||||
if (authDetail.isOnlyPassword) {
|
||||
// We don't handle password-only prompts, so just cancel it.
|
||||
cancelCallback();
|
||||
return;
|
||||
} else { /* username and password */
|
||||
let detail = {
|
||||
host: authDetail.host,
|
||||
realm: authDetail.realm
|
||||
};
|
||||
|
||||
evt = this._createEvent('usernameandpasswordrequired', detail,
|
||||
/* cancelable */ true);
|
||||
defineAndExpose(evt.detail, 'authenticate', function(username, password) {
|
||||
if (callbackCalled)
|
||||
return;
|
||||
callbackCalled = true;
|
||||
callback(true, username, password);
|
||||
});
|
||||
}
|
||||
|
||||
defineAndExpose(evt.detail, 'cancel', function() {
|
||||
cancelCallback();
|
||||
});
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
|
||||
if (!evt.defaultPrevented) {
|
||||
cancelCallback();
|
||||
}
|
||||
},
|
||||
|
||||
_sendAsyncMsg: function(msg, data) {
|
||||
try {
|
||||
this._mm.sendAsyncMessage('browser-element-api:' + msg, data);
|
||||
} catch (e) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
},
|
||||
|
||||
_recvHello: function(data) {
|
||||
debug("recvHello");
|
||||
|
||||
// Inform our child if our owner element's document is invisible. Note
|
||||
// that we must do so here, rather than in the BrowserElementParent
|
||||
// constructor, because the BrowserElementChild may not be initialized when
|
||||
// we run our constructor.
|
||||
if (this._window.document.hidden) {
|
||||
this._ownerVisibilityChange();
|
||||
}
|
||||
},
|
||||
|
||||
_recvGetName: function(data) {
|
||||
return this._frameElement.getAttribute('name');
|
||||
},
|
||||
|
||||
_recvGetFullscreenAllowed: function(data) {
|
||||
return this._frameElement.hasAttribute('allowfullscreen') ||
|
||||
this._frameElement.hasAttribute('mozallowfullscreen');
|
||||
},
|
||||
|
||||
_fireCtxMenuEvent: function(data) {
|
||||
let evtName = data.name.substring('browser-element-api:'.length);
|
||||
let detail = data.json;
|
||||
|
||||
debug('fireCtxMenuEventFromMsg: ' + evtName + ' ' + detail);
|
||||
let evt = this._createEvent(evtName, detail);
|
||||
|
||||
if (detail.contextmenu) {
|
||||
var self = this;
|
||||
defineAndExpose(evt.detail, 'contextMenuItemSelected', function(id) {
|
||||
self._sendAsyncMsg('fire-ctx-callback', {menuitem: id});
|
||||
});
|
||||
}
|
||||
// The embedder may have default actions on context menu events, so
|
||||
// we fire a context menu event even if the child didn't define a
|
||||
// custom context menu
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
/**
|
||||
* Fire either a vanilla or a custom event, depending on the contents of
|
||||
* |data|.
|
||||
*/
|
||||
_fireEventFromMsg: function(data) {
|
||||
let name = data.name.substring('browser-element-api:'.length);
|
||||
let detail = data.json;
|
||||
|
||||
debug('fireEventFromMsg: ' + name + ', ' + detail);
|
||||
let evt = this._createEvent(name, detail,
|
||||
/* cancelable = */ false);
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
_handleShowModalPrompt: function(data) {
|
||||
// Fire a showmodalprmopt event on the iframe. When this method is called,
|
||||
// the child is spinning in a nested event loop waiting for an
|
||||
// unblock-modal-prompt message.
|
||||
//
|
||||
// If the embedder calls preventDefault() on the showmodalprompt event,
|
||||
// we'll block the child until event.detail.unblock() is called.
|
||||
//
|
||||
// Otherwise, if preventDefault() is not called, we'll send the
|
||||
// unblock-modal-prompt message to the child as soon as the event is done
|
||||
// dispatching.
|
||||
|
||||
let detail = data.json;
|
||||
debug('handleShowPrompt ' + JSON.stringify(detail));
|
||||
|
||||
// Strip off the windowID property from the object we send along in the
|
||||
// event.
|
||||
let windowID = detail.windowID;
|
||||
delete detail.windowID;
|
||||
debug("Event will have detail: " + JSON.stringify(detail));
|
||||
let evt = this._createEvent('showmodalprompt', detail,
|
||||
/* cancelable = */ true);
|
||||
|
||||
let self = this;
|
||||
let unblockMsgSent = false;
|
||||
function sendUnblockMsg() {
|
||||
if (unblockMsgSent) {
|
||||
return;
|
||||
}
|
||||
unblockMsgSent = true;
|
||||
|
||||
// We don't need to sanitize evt.detail.returnValue (e.g. converting the
|
||||
// return value of confirm() to a boolean); Gecko does that for us.
|
||||
|
||||
let data = { windowID: windowID,
|
||||
returnValue: evt.detail.returnValue };
|
||||
self._sendAsyncMsg('unblock-modal-prompt', data);
|
||||
}
|
||||
|
||||
defineAndExpose(evt.detail, 'unblock', function() {
|
||||
sendUnblockMsg();
|
||||
});
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
|
||||
if (!evt.defaultPrevented) {
|
||||
// Unblock the inner frame immediately. Otherwise we'll unblock upon
|
||||
// evt.detail.unblock().
|
||||
sendUnblockMsg();
|
||||
}
|
||||
},
|
||||
|
||||
_createEvent: function(evtName, detail, cancelable) {
|
||||
// This will have to change if we ever want to send a CustomEvent with null
|
||||
// detail. For now, it's OK.
|
||||
if (detail !== undefined && detail !== null) {
|
||||
exposeAll(detail);
|
||||
return new this._window.CustomEvent('mozbrowser' + evtName,
|
||||
{ bubbles: true,
|
||||
cancelable: cancelable,
|
||||
detail: detail });
|
||||
}
|
||||
|
||||
return new this._window.Event('mozbrowser' + evtName,
|
||||
{ bubbles: true,
|
||||
cancelable: cancelable });
|
||||
},
|
||||
|
||||
/**
|
||||
* Kick off a DOMRequest in the child process.
|
||||
*
|
||||
* We'll fire an event called |msgName| on the child process, passing along
|
||||
* an object with two fields:
|
||||
*
|
||||
* - id: the ID of this request.
|
||||
* - arg: arguments to pass to the child along with this request.
|
||||
*
|
||||
* We expect the child to pass the ID back to us upon completion of the
|
||||
* request. See _gotDOMRequestResult.
|
||||
*/
|
||||
_sendDOMRequest: function(msgName, args) {
|
||||
let id = 'req_' + this._domRequestCounter++;
|
||||
let req = Services.DOMRequest.createRequest(this._window);
|
||||
if (this._sendAsyncMsg(msgName, {id: id, args: args})) {
|
||||
this._pendingDOMRequests[id] = req;
|
||||
} else {
|
||||
Services.DOMRequest.fireErrorAsync(req, "fail");
|
||||
}
|
||||
return req;
|
||||
},
|
||||
|
||||
/**
|
||||
* Called when the child process finishes handling a DOMRequest. data.json
|
||||
* must have the fields [id, successRv], if the DOMRequest was successful, or
|
||||
* [id, errorMsg], if the request was not successful.
|
||||
*
|
||||
* The fields have the following meanings:
|
||||
*
|
||||
* - id: the ID of the DOM request (see _sendDOMRequest)
|
||||
* - successRv: the request's return value, if the request succeeded
|
||||
* - errorMsg: the message to pass to DOMRequest.fireError(), if the request
|
||||
* failed.
|
||||
*
|
||||
*/
|
||||
_gotDOMRequestResult: function(data) {
|
||||
let req = this._pendingDOMRequests[data.json.id];
|
||||
delete this._pendingDOMRequests[data.json.id];
|
||||
|
||||
if ('successRv' in data.json) {
|
||||
debug("Successful gotDOMRequestResult.");
|
||||
Services.DOMRequest.fireSuccess(req, data.json.successRv);
|
||||
}
|
||||
else {
|
||||
debug("Got error in gotDOMRequestResult.");
|
||||
Services.DOMRequest.fireErrorAsync(req, data.json.errorMsg);
|
||||
}
|
||||
},
|
||||
|
||||
_setVisible: function(visible) {
|
||||
this._sendAsyncMsg('set-visible', {visible: visible});
|
||||
},
|
||||
|
||||
_sendMouseEvent: function(type, x, y, button, clickCount, modifiers) {
|
||||
this._sendAsyncMsg("send-mouse-event", {
|
||||
"type": type,
|
||||
"x": x,
|
||||
"y": y,
|
||||
"button": button,
|
||||
"clickCount": clickCount,
|
||||
"modifiers": modifiers
|
||||
});
|
||||
},
|
||||
|
||||
_sendTouchEvent: function(type, identifiers, touchesX, touchesY,
|
||||
radiisX, radiisY, rotationAngles, forces,
|
||||
count, modifiers) {
|
||||
this._sendAsyncMsg("send-touch-event", {
|
||||
"type": type,
|
||||
"identifiers": identifiers,
|
||||
"touchesX": touchesX,
|
||||
"touchesY": touchesY,
|
||||
"radiisX": radiisX,
|
||||
"radiisY": radiisY,
|
||||
"rotationAngles": rotationAngles,
|
||||
"forces": forces,
|
||||
"count": count,
|
||||
"modifiers": modifiers
|
||||
});
|
||||
},
|
||||
|
||||
_goBack: function() {
|
||||
this._sendAsyncMsg('go-back');
|
||||
},
|
||||
|
||||
_goForward: function() {
|
||||
this._sendAsyncMsg('go-forward');
|
||||
},
|
||||
|
||||
_reload: function(hardReload) {
|
||||
this._sendAsyncMsg('reload', {hardReload: hardReload});
|
||||
},
|
||||
|
||||
_stop: function() {
|
||||
this._sendAsyncMsg('stop');
|
||||
},
|
||||
|
||||
_purgeHistory: function() {
|
||||
return this._sendDOMRequest('purge-history');
|
||||
},
|
||||
|
||||
_getScreenshot: function(_width, _height) {
|
||||
let width = parseInt(_width);
|
||||
let height = parseInt(_height);
|
||||
if (isNaN(width) || isNaN(height) || width < 0 || height < 0) {
|
||||
throw Components.Exception("Invalid argument",
|
||||
Cr.NS_ERROR_INVALID_ARG);
|
||||
}
|
||||
|
||||
return this._sendDOMRequest('get-screenshot',
|
||||
{width: width, height: height});
|
||||
},
|
||||
|
||||
_recvNextPaint: function(data) {
|
||||
let listeners = this._nextPaintListeners;
|
||||
this._nextPaintListeners = [];
|
||||
for (let listener of listeners) {
|
||||
try {
|
||||
listener();
|
||||
} catch (e) {
|
||||
// If a listener throws we'll continue.
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
_addNextPaintListener: function(listener) {
|
||||
if (typeof listener != 'function')
|
||||
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
||||
|
||||
if (this._nextPaintListeners.push(listener) == 1)
|
||||
this._sendAsyncMsg('activate-next-paint-listener');
|
||||
},
|
||||
|
||||
_removeNextPaintListener: function(listener) {
|
||||
if (typeof listener != 'function')
|
||||
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
||||
|
||||
for (let i = this._nextPaintListeners.length - 1; i >= 0; i--) {
|
||||
if (this._nextPaintListeners[i] == listener) {
|
||||
this._nextPaintListeners.splice(i, 1);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (this._nextPaintListeners.length == 0)
|
||||
this._sendAsyncMsg('deactivate-next-paint-listener');
|
||||
},
|
||||
|
||||
_fireKeyEvent: function(data) {
|
||||
let evt = this._window.document.createEvent("KeyboardEvent");
|
||||
evt.initKeyEvent(data.json.type, true, true, this._window,
|
||||
false, false, false, false, // modifiers
|
||||
data.json.keyCode,
|
||||
data.json.charCode);
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
/**
|
||||
* Called when the visibility of the window which owns this iframe changes.
|
||||
*/
|
||||
_ownerVisibilityChange: function() {
|
||||
this._sendAsyncMsg('owner-visibility-change',
|
||||
{visible: !this._window.document.hidden});
|
||||
},
|
||||
|
||||
_exitFullscreen: function() {
|
||||
this._windowUtils.exitFullscreen();
|
||||
},
|
||||
|
||||
_remoteFullscreenOriginChange: function(data) {
|
||||
let origin = data.json;
|
||||
this._windowUtils.remoteFrameFullscreenChanged(this._frameElement, origin);
|
||||
},
|
||||
|
||||
_remoteFrameFullscreenReverted: function(data) {
|
||||
this._windowUtils.remoteFrameFullscreenReverted();
|
||||
},
|
||||
|
||||
_fireFatalError: function() {
|
||||
let evt = this._createEvent('error', {type: 'fatal'},
|
||||
/* cancelable = */ false);
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
observe: function(subject, topic, data) {
|
||||
switch(topic) {
|
||||
case 'oop-frameloader-crashed':
|
||||
if (this._isAlive() && subject == this._frameLoader) {
|
||||
this._fireFatalError();
|
||||
}
|
||||
break;
|
||||
case 'ask-children-to-exit-fullscreen':
|
||||
if (this._isAlive() &&
|
||||
this._frameElement.ownerDocument == subject &&
|
||||
this._hasRemoteFrame) {
|
||||
this._sendAsyncMsg('exit-fullscreen');
|
||||
}
|
||||
break;
|
||||
default:
|
||||
debug('Unknown topic: ' + topic);
|
||||
break;
|
||||
};
|
||||
},
|
||||
};
|
||||
|
||||
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([BrowserElementParentFactory]);
|
||||
|
||||
607
dom/browser-element/BrowserElementParent.jsm
Normal file
607
dom/browser-element/BrowserElementParent.jsm
Normal file
@ -0,0 +1,607 @@
|
||||
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
||||
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
"use strict";
|
||||
|
||||
let Cu = Components.utils;
|
||||
let Ci = Components.interfaces;
|
||||
let Cc = Components.classes;
|
||||
let Cr = Components.results;
|
||||
|
||||
/* BrowserElementParent injects script to listen for certain events in the
|
||||
* child. We then listen to messages from the child script and take
|
||||
* appropriate action here in the parent.
|
||||
*/
|
||||
|
||||
this.EXPORTED_SYMBOLS = ["BrowserElementParentBuilder"];
|
||||
|
||||
Cu.import("resource://gre/modules/Services.jsm");
|
||||
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
|
||||
Cu.import("resource://gre/modules/BrowserElementPromptService.jsm");
|
||||
|
||||
XPCOMUtils.defineLazyGetter(this, "DOMApplicationRegistry", function () {
|
||||
Cu.import("resource://gre/modules/Webapps.jsm");
|
||||
return DOMApplicationRegistry;
|
||||
});
|
||||
|
||||
const TOUCH_EVENTS_ENABLED_PREF = "dom.w3c_touch_events.enabled";
|
||||
|
||||
function debug(msg) {
|
||||
//dump("BrowserElementParent.jsm - " + msg + "\n");
|
||||
}
|
||||
|
||||
function getIntPref(prefName, def) {
|
||||
try {
|
||||
return Services.prefs.getIntPref(prefName);
|
||||
}
|
||||
catch(err) {
|
||||
return def;
|
||||
}
|
||||
}
|
||||
|
||||
function exposeAll(obj) {
|
||||
// Filter for Objects and Arrays.
|
||||
if (typeof obj !== "object" || !obj)
|
||||
return;
|
||||
|
||||
// Recursively expose our children.
|
||||
Object.keys(obj).forEach(function(key) {
|
||||
exposeAll(obj[key]);
|
||||
});
|
||||
|
||||
// If we're not an Array, generate an __exposedProps__ object for ourselves.
|
||||
if (obj instanceof Array)
|
||||
return;
|
||||
var exposed = {};
|
||||
Object.keys(obj).forEach(function(key) {
|
||||
exposed[key] = 'rw';
|
||||
});
|
||||
obj.__exposedProps__ = exposed;
|
||||
}
|
||||
|
||||
function defineAndExpose(obj, name, value) {
|
||||
obj[name] = value;
|
||||
if (!('__exposedProps__' in obj))
|
||||
obj.__exposedProps__ = {};
|
||||
obj.__exposedProps__[name] = 'r';
|
||||
}
|
||||
|
||||
this.BrowserElementParentBuilder = {
|
||||
create: function create(frameLoader, hasRemoteFrame) {
|
||||
return new BrowserElementParent(frameLoader, hasRemoteFrame);
|
||||
}
|
||||
}
|
||||
|
||||
function BrowserElementParent(frameLoader, hasRemoteFrame) {
|
||||
debug("Creating new BrowserElementParent object for " + frameLoader);
|
||||
this._domRequestCounter = 0;
|
||||
this._pendingDOMRequests = {};
|
||||
this._hasRemoteFrame = hasRemoteFrame;
|
||||
this._nextPaintListeners = [];
|
||||
|
||||
this._frameLoader = frameLoader;
|
||||
this._frameElement = frameLoader.QueryInterface(Ci.nsIFrameLoader).ownerElement;
|
||||
if (!this._frameElement) {
|
||||
debug("No frame element?");
|
||||
return;
|
||||
}
|
||||
|
||||
this._mm = frameLoader.messageManager;
|
||||
let self = this;
|
||||
|
||||
// Messages we receive are handed to functions which take a (data) argument,
|
||||
// where |data| is the message manager's data object.
|
||||
// We use a single message and dispatch to various function based
|
||||
// on data.msg_name
|
||||
let mmCalls = {
|
||||
"get-name": this._recvGetName,
|
||||
"get-fullscreen-allowed": this._recvGetFullscreenAllowed,
|
||||
"hello": this._recvHello,
|
||||
"contextmenu": this._fireCtxMenuEvent,
|
||||
"locationchange": this._fireEventFromMsg,
|
||||
"loadstart": this._fireEventFromMsg,
|
||||
"loadend": this._fireEventFromMsg,
|
||||
"titlechange": this._fireEventFromMsg,
|
||||
"iconchange": this._fireEventFromMsg,
|
||||
"close": this._fireEventFromMsg,
|
||||
"securitychange": this._fireEventFromMsg,
|
||||
"error": this._fireEventFromMsg,
|
||||
"scroll": this._fireEventFromMsg,
|
||||
"firstpaint": this._fireEventFromMsg,
|
||||
"documentfirstpaint": this._fireEventFromMsg,
|
||||
"nextpaint": this._recvNextPaint,
|
||||
"keyevent": this._fireKeyEvent,
|
||||
"showmodalprompt": this._handleShowModalPrompt,
|
||||
"got-purge-history": this._gotDOMRequestResult,
|
||||
"got-screenshot": this._gotDOMRequestResult,
|
||||
"got-can-go-back": this._gotDOMRequestResult,
|
||||
"got-can-go-forward": this._gotDOMRequestResult,
|
||||
"fullscreen-origin-change": this._remoteFullscreenOriginChange,
|
||||
"rollback-fullscreen": this._remoteFrameFullscreenReverted,
|
||||
"exit-fullscreen": this._exitFullscreen,
|
||||
"got-visible": this._gotDOMRequestResult
|
||||
}
|
||||
|
||||
this._mm.addMessageListener('browser-element-api:call', function(aMsg) {
|
||||
if (self._isAlive() && (aMsg.data.msg_name in mmCalls)) {
|
||||
return mmCalls[aMsg.data.msg_name].apply(self, arguments);
|
||||
}
|
||||
});
|
||||
|
||||
Services.obs.addObserver(this, 'ask-children-to-exit-fullscreen', /* ownsWeak = */ true);
|
||||
Services.obs.addObserver(this, 'oop-frameloader-crashed', /* ownsWeak = */ true);
|
||||
|
||||
let defineMethod = function(name, fn) {
|
||||
XPCNativeWrapper.unwrap(self._frameElement)[name] = function() {
|
||||
if (self._isAlive()) {
|
||||
return fn.apply(self, arguments);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
let defineDOMRequestMethod = function(domName, msgName) {
|
||||
XPCNativeWrapper.unwrap(self._frameElement)[domName] = function() {
|
||||
if (self._isAlive()) {
|
||||
return self._sendDOMRequest(msgName);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
// Define methods on the frame element.
|
||||
defineMethod('setVisible', this._setVisible);
|
||||
defineDOMRequestMethod('getVisible', 'get-visible');
|
||||
defineMethod('sendMouseEvent', this._sendMouseEvent);
|
||||
|
||||
// 0 = disabled, 1 = enabled, 2 - auto detect
|
||||
if (getIntPref(TOUCH_EVENTS_ENABLED_PREF, 0) != 0) {
|
||||
defineMethod('sendTouchEvent', this._sendTouchEvent);
|
||||
}
|
||||
defineMethod('goBack', this._goBack);
|
||||
defineMethod('goForward', this._goForward);
|
||||
defineMethod('reload', this._reload);
|
||||
defineMethod('stop', this._stop);
|
||||
defineMethod('purgeHistory', this._purgeHistory);
|
||||
defineMethod('getScreenshot', this._getScreenshot);
|
||||
defineMethod('addNextPaintListener', this._addNextPaintListener);
|
||||
defineMethod('removeNextPaintListener', this._removeNextPaintListener);
|
||||
defineDOMRequestMethod('getCanGoBack', 'get-can-go-back');
|
||||
defineDOMRequestMethod('getCanGoForward', 'get-can-go-forward');
|
||||
|
||||
// Listen to visibilitychange on the iframe's owner window, and forward it
|
||||
// down to the child.
|
||||
this._window.addEventListener('visibilitychange',
|
||||
this._ownerVisibilityChange.bind(this),
|
||||
/* useCapture = */ false,
|
||||
/* wantsUntrusted = */ false);
|
||||
|
||||
// Insert ourself into the prompt service.
|
||||
BrowserElementPromptService.mapFrameToBrowserElementParent(this._frameElement, this);
|
||||
|
||||
// If this browser represents an app then let the Webapps module register for
|
||||
// any messages that it needs.
|
||||
let appManifestURL =
|
||||
this._frameElement.QueryInterface(Ci.nsIMozBrowserFrame).appManifestURL;
|
||||
if (appManifestURL) {
|
||||
let appId =
|
||||
DOMApplicationRegistry.getAppLocalIdByManifestURL(appManifestURL);
|
||||
if (appId != Ci.nsIScriptSecurityManager.NO_APP_ID) {
|
||||
DOMApplicationRegistry.registerBrowserElementParentForApp(this, appId);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
BrowserElementParent.prototype = {
|
||||
|
||||
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
|
||||
Ci.nsISupportsWeakReference]),
|
||||
|
||||
/**
|
||||
* You shouldn't touch this._frameElement or this._window if _isAlive is
|
||||
* false. (You'll likely get an exception if you do.)
|
||||
*/
|
||||
_isAlive: function() {
|
||||
return !Cu.isDeadWrapper(this._frameElement) &&
|
||||
!Cu.isDeadWrapper(this._frameElement.ownerDocument) &&
|
||||
!Cu.isDeadWrapper(this._frameElement.ownerDocument.defaultView);
|
||||
},
|
||||
|
||||
get _window() {
|
||||
return this._frameElement.ownerDocument.defaultView;
|
||||
},
|
||||
|
||||
get _windowUtils() {
|
||||
return this._window.QueryInterface(Ci.nsIInterfaceRequestor)
|
||||
.getInterface(Ci.nsIDOMWindowUtils);
|
||||
},
|
||||
|
||||
promptAuth: function(authDetail, callback) {
|
||||
let evt;
|
||||
let self = this;
|
||||
let callbackCalled = false;
|
||||
let cancelCallback = function() {
|
||||
if (!callbackCalled) {
|
||||
callbackCalled = true;
|
||||
callback(false, null, null);
|
||||
}
|
||||
};
|
||||
|
||||
if (authDetail.isOnlyPassword) {
|
||||
// We don't handle password-only prompts, so just cancel it.
|
||||
cancelCallback();
|
||||
return;
|
||||
} else { /* username and password */
|
||||
let detail = {
|
||||
host: authDetail.host,
|
||||
realm: authDetail.realm
|
||||
};
|
||||
|
||||
evt = this._createEvent('usernameandpasswordrequired', detail,
|
||||
/* cancelable */ true);
|
||||
defineAndExpose(evt.detail, 'authenticate', function(username, password) {
|
||||
if (callbackCalled)
|
||||
return;
|
||||
callbackCalled = true;
|
||||
callback(true, username, password);
|
||||
});
|
||||
}
|
||||
|
||||
defineAndExpose(evt.detail, 'cancel', function() {
|
||||
cancelCallback();
|
||||
});
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
|
||||
if (!evt.defaultPrevented) {
|
||||
cancelCallback();
|
||||
}
|
||||
},
|
||||
|
||||
_sendAsyncMsg: function(msg, data) {
|
||||
try {
|
||||
if (!data) {
|
||||
data = { };
|
||||
}
|
||||
|
||||
data.msg_name = msg;
|
||||
this._mm.sendAsyncMessage('browser-element-api:call', data);
|
||||
} catch (e) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
},
|
||||
|
||||
_recvHello: function(data) {
|
||||
debug("recvHello");
|
||||
|
||||
// Inform our child if our owner element's document is invisible. Note
|
||||
// that we must do so here, rather than in the BrowserElementParent
|
||||
// constructor, because the BrowserElementChild may not be initialized when
|
||||
// we run our constructor.
|
||||
if (this._window.document.hidden) {
|
||||
this._ownerVisibilityChange();
|
||||
}
|
||||
},
|
||||
|
||||
_recvGetName: function(data) {
|
||||
return this._frameElement.getAttribute('name');
|
||||
},
|
||||
|
||||
_recvGetFullscreenAllowed: function(data) {
|
||||
return this._frameElement.hasAttribute('allowfullscreen') ||
|
||||
this._frameElement.hasAttribute('mozallowfullscreen');
|
||||
},
|
||||
|
||||
_fireCtxMenuEvent: function(data) {
|
||||
let detail = data.json;
|
||||
let evtName = detail.msg_name;
|
||||
|
||||
debug('fireCtxMenuEventFromMsg: ' + evtName + ' ' + detail);
|
||||
let evt = this._createEvent(evtName, detail);
|
||||
|
||||
if (detail.contextmenu) {
|
||||
var self = this;
|
||||
defineAndExpose(evt.detail, 'contextMenuItemSelected', function(id) {
|
||||
self._sendAsyncMsg('fire-ctx-callback', {menuitem: id});
|
||||
});
|
||||
}
|
||||
// The embedder may have default actions on context menu events, so
|
||||
// we fire a context menu event even if the child didn't define a
|
||||
// custom context menu
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
/**
|
||||
* Fire either a vanilla or a custom event, depending on the contents of
|
||||
* |data|.
|
||||
*/
|
||||
_fireEventFromMsg: function(data) {
|
||||
let detail = data.json;
|
||||
let name = detail.msg_name;
|
||||
|
||||
// For events that send a "_payload_" property, we just want to transmit
|
||||
// this in the event.
|
||||
if (detail._payload_) {
|
||||
detail = detail._payload_;
|
||||
}
|
||||
|
||||
debug('fireEventFromMsg: ' + name + ', ' + JSON.stringify(detail));
|
||||
let evt = this._createEvent(name, detail,
|
||||
/* cancelable = */ false);
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
_handleShowModalPrompt: function(data) {
|
||||
// Fire a showmodalprmopt event on the iframe. When this method is called,
|
||||
// the child is spinning in a nested event loop waiting for an
|
||||
// unblock-modal-prompt message.
|
||||
//
|
||||
// If the embedder calls preventDefault() on the showmodalprompt event,
|
||||
// we'll block the child until event.detail.unblock() is called.
|
||||
//
|
||||
// Otherwise, if preventDefault() is not called, we'll send the
|
||||
// unblock-modal-prompt message to the child as soon as the event is done
|
||||
// dispatching.
|
||||
|
||||
let detail = data.json;
|
||||
debug('handleShowPrompt ' + JSON.stringify(detail));
|
||||
|
||||
// Strip off the windowID property from the object we send along in the
|
||||
// event.
|
||||
let windowID = detail.windowID;
|
||||
delete detail.windowID;
|
||||
debug("Event will have detail: " + JSON.stringify(detail));
|
||||
let evt = this._createEvent('showmodalprompt', detail,
|
||||
/* cancelable = */ true);
|
||||
|
||||
let self = this;
|
||||
let unblockMsgSent = false;
|
||||
function sendUnblockMsg() {
|
||||
if (unblockMsgSent) {
|
||||
return;
|
||||
}
|
||||
unblockMsgSent = true;
|
||||
|
||||
// We don't need to sanitize evt.detail.returnValue (e.g. converting the
|
||||
// return value of confirm() to a boolean); Gecko does that for us.
|
||||
|
||||
let data = { windowID: windowID,
|
||||
returnValue: evt.detail.returnValue };
|
||||
self._sendAsyncMsg('unblock-modal-prompt', data);
|
||||
}
|
||||
|
||||
defineAndExpose(evt.detail, 'unblock', function() {
|
||||
sendUnblockMsg();
|
||||
});
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
|
||||
if (!evt.defaultPrevented) {
|
||||
// Unblock the inner frame immediately. Otherwise we'll unblock upon
|
||||
// evt.detail.unblock().
|
||||
sendUnblockMsg();
|
||||
}
|
||||
},
|
||||
|
||||
_createEvent: function(evtName, detail, cancelable) {
|
||||
// This will have to change if we ever want to send a CustomEvent with null
|
||||
// detail. For now, it's OK.
|
||||
if (detail !== undefined && detail !== null) {
|
||||
exposeAll(detail);
|
||||
return new this._window.CustomEvent('mozbrowser' + evtName,
|
||||
{ bubbles: true,
|
||||
cancelable: cancelable,
|
||||
detail: detail });
|
||||
}
|
||||
|
||||
return new this._window.Event('mozbrowser' + evtName,
|
||||
{ bubbles: true,
|
||||
cancelable: cancelable });
|
||||
},
|
||||
|
||||
/**
|
||||
* Kick off a DOMRequest in the child process.
|
||||
*
|
||||
* We'll fire an event called |msgName| on the child process, passing along
|
||||
* an object with two fields:
|
||||
*
|
||||
* - id: the ID of this request.
|
||||
* - arg: arguments to pass to the child along with this request.
|
||||
*
|
||||
* We expect the child to pass the ID back to us upon completion of the
|
||||
* request. See _gotDOMRequestResult.
|
||||
*/
|
||||
_sendDOMRequest: function(msgName, args) {
|
||||
let id = 'req_' + this._domRequestCounter++;
|
||||
let req = Services.DOMRequest.createRequest(this._window);
|
||||
if (this._sendAsyncMsg(msgName, {id: id, args: args})) {
|
||||
this._pendingDOMRequests[id] = req;
|
||||
} else {
|
||||
Services.DOMRequest.fireErrorAsync(req, "fail");
|
||||
}
|
||||
return req;
|
||||
},
|
||||
|
||||
/**
|
||||
* Called when the child process finishes handling a DOMRequest. data.json
|
||||
* must have the fields [id, successRv], if the DOMRequest was successful, or
|
||||
* [id, errorMsg], if the request was not successful.
|
||||
*
|
||||
* The fields have the following meanings:
|
||||
*
|
||||
* - id: the ID of the DOM request (see _sendDOMRequest)
|
||||
* - successRv: the request's return value, if the request succeeded
|
||||
* - errorMsg: the message to pass to DOMRequest.fireError(), if the request
|
||||
* failed.
|
||||
*
|
||||
*/
|
||||
_gotDOMRequestResult: function(data) {
|
||||
let req = this._pendingDOMRequests[data.json.id];
|
||||
delete this._pendingDOMRequests[data.json.id];
|
||||
|
||||
if ('successRv' in data.json) {
|
||||
debug("Successful gotDOMRequestResult.");
|
||||
Services.DOMRequest.fireSuccess(req, data.json.successRv);
|
||||
}
|
||||
else {
|
||||
debug("Got error in gotDOMRequestResult.");
|
||||
Services.DOMRequest.fireErrorAsync(req, data.json.errorMsg);
|
||||
}
|
||||
},
|
||||
|
||||
_setVisible: function(visible) {
|
||||
this._sendAsyncMsg('set-visible', {visible: visible});
|
||||
},
|
||||
|
||||
_sendMouseEvent: function(type, x, y, button, clickCount, modifiers) {
|
||||
this._sendAsyncMsg("send-mouse-event", {
|
||||
"type": type,
|
||||
"x": x,
|
||||
"y": y,
|
||||
"button": button,
|
||||
"clickCount": clickCount,
|
||||
"modifiers": modifiers
|
||||
});
|
||||
},
|
||||
|
||||
_sendTouchEvent: function(type, identifiers, touchesX, touchesY,
|
||||
radiisX, radiisY, rotationAngles, forces,
|
||||
count, modifiers) {
|
||||
this._sendAsyncMsg("send-touch-event", {
|
||||
"type": type,
|
||||
"identifiers": identifiers,
|
||||
"touchesX": touchesX,
|
||||
"touchesY": touchesY,
|
||||
"radiisX": radiisX,
|
||||
"radiisY": radiisY,
|
||||
"rotationAngles": rotationAngles,
|
||||
"forces": forces,
|
||||
"count": count,
|
||||
"modifiers": modifiers
|
||||
});
|
||||
},
|
||||
|
||||
_goBack: function() {
|
||||
this._sendAsyncMsg('go-back');
|
||||
},
|
||||
|
||||
_goForward: function() {
|
||||
this._sendAsyncMsg('go-forward');
|
||||
},
|
||||
|
||||
_reload: function(hardReload) {
|
||||
this._sendAsyncMsg('reload', {hardReload: hardReload});
|
||||
},
|
||||
|
||||
_stop: function() {
|
||||
this._sendAsyncMsg('stop');
|
||||
},
|
||||
|
||||
_purgeHistory: function() {
|
||||
return this._sendDOMRequest('purge-history');
|
||||
},
|
||||
|
||||
_getScreenshot: function(_width, _height) {
|
||||
let width = parseInt(_width);
|
||||
let height = parseInt(_height);
|
||||
if (isNaN(width) || isNaN(height) || width < 0 || height < 0) {
|
||||
throw Components.Exception("Invalid argument",
|
||||
Cr.NS_ERROR_INVALID_ARG);
|
||||
}
|
||||
|
||||
return this._sendDOMRequest('get-screenshot',
|
||||
{width: width, height: height});
|
||||
},
|
||||
|
||||
_recvNextPaint: function(data) {
|
||||
let listeners = this._nextPaintListeners;
|
||||
this._nextPaintListeners = [];
|
||||
for (let listener of listeners) {
|
||||
try {
|
||||
listener();
|
||||
} catch (e) {
|
||||
// If a listener throws we'll continue.
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
_addNextPaintListener: function(listener) {
|
||||
if (typeof listener != 'function')
|
||||
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
||||
|
||||
if (this._nextPaintListeners.push(listener) == 1)
|
||||
this._sendAsyncMsg('activate-next-paint-listener');
|
||||
},
|
||||
|
||||
_removeNextPaintListener: function(listener) {
|
||||
if (typeof listener != 'function')
|
||||
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
||||
|
||||
for (let i = this._nextPaintListeners.length - 1; i >= 0; i--) {
|
||||
if (this._nextPaintListeners[i] == listener) {
|
||||
this._nextPaintListeners.splice(i, 1);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (this._nextPaintListeners.length == 0)
|
||||
this._sendAsyncMsg('deactivate-next-paint-listener');
|
||||
},
|
||||
|
||||
_fireKeyEvent: function(data) {
|
||||
let evt = this._window.document.createEvent("KeyboardEvent");
|
||||
evt.initKeyEvent(data.json.type, true, true, this._window,
|
||||
false, false, false, false, // modifiers
|
||||
data.json.keyCode,
|
||||
data.json.charCode);
|
||||
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
/**
|
||||
* Called when the visibility of the window which owns this iframe changes.
|
||||
*/
|
||||
_ownerVisibilityChange: function() {
|
||||
this._sendAsyncMsg('owner-visibility-change',
|
||||
{visible: !this._window.document.hidden});
|
||||
},
|
||||
|
||||
_exitFullscreen: function() {
|
||||
this._windowUtils.exitFullscreen();
|
||||
},
|
||||
|
||||
_remoteFullscreenOriginChange: function(data) {
|
||||
let origin = data.json;
|
||||
this._windowUtils.remoteFrameFullscreenChanged(this._frameElement, origin);
|
||||
},
|
||||
|
||||
_remoteFrameFullscreenReverted: function(data) {
|
||||
this._windowUtils.remoteFrameFullscreenReverted();
|
||||
},
|
||||
|
||||
_fireFatalError: function() {
|
||||
let evt = this._createEvent('error', {type: 'fatal'},
|
||||
/* cancelable = */ false);
|
||||
this._frameElement.dispatchEvent(evt);
|
||||
},
|
||||
|
||||
observe: function(subject, topic, data) {
|
||||
switch(topic) {
|
||||
case 'oop-frameloader-crashed':
|
||||
if (this._isAlive() && subject == this._frameLoader) {
|
||||
this._fireFatalError();
|
||||
}
|
||||
break;
|
||||
case 'ask-children-to-exit-fullscreen':
|
||||
if (this._isAlive() &&
|
||||
this._frameElement.ownerDocument == subject &&
|
||||
this._hasRemoteFrame) {
|
||||
this._sendAsyncMsg('exit-fullscreen');
|
||||
}
|
||||
break;
|
||||
default:
|
||||
debug('Unknown topic: ' + topic);
|
||||
break;
|
||||
};
|
||||
},
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user