595 lines
21 KiB
JavaScript
595 lines
21 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const Ci = Components.interfaces;
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const Cr = Components.results;
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const Cu = Components.utils;
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const {Helper} = ChromeUtils.importESModule('chrome://juggler/content/Helper.js');
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const {NetUtil} = ChromeUtils.importESModule('resource://gre/modules/NetUtil.sys.mjs');
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const {setTimeout} = ChromeUtils.importESModule('resource://gre/modules/Timer.sys.mjs');
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const dragService = Cc["@mozilla.org/widget/dragservice;1"].getService(
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Ci.nsIDragService
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);
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const obs = Cc["@mozilla.org/observer-service;1"].getService(
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Ci.nsIObserverService
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);
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const helper = new Helper();
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class WorkerData {
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constructor(pageAgent, browserChannel, worker) {
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this._workerRuntime = worker.channel().connect('runtime');
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this._browserWorker = browserChannel.connect(worker.id());
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this._worker = worker;
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const emit = name => {
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return (...args) => this._browserWorker.emit(name, ...args);
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};
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this._eventListeners = [
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worker.channel().register('runtime', {
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runtimeConsole: emit('runtimeConsole'),
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runtimeExecutionContextCreated: emit('runtimeExecutionContextCreated'),
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runtimeExecutionContextDestroyed: emit('runtimeExecutionContextDestroyed'),
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}),
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browserChannel.register(worker.id(), {
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evaluate: (options) => this._workerRuntime.send('evaluate', options),
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callFunction: (options) => this._workerRuntime.send('callFunction', options),
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getObjectProperties: (options) => this._workerRuntime.send('getObjectProperties', options),
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disposeObject: (options) => this._workerRuntime.send('disposeObject', options),
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}),
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];
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}
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dispose() {
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this._workerRuntime.dispose();
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this._browserWorker.dispose();
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helper.removeListeners(this._eventListeners);
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}
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}
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export class PageAgent {
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constructor(browserChannel, frameTree) {
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this._browserChannel = browserChannel;
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this._browserPage = browserChannel.connect('page');
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this._frameTree = frameTree;
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this._runtime = frameTree.runtime();
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this._workerData = new Map();
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const docShell = frameTree.mainFrame().docShell();
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this._docShell = docShell;
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// Dispatch frameAttached events for all initial frames
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for (const frame of this._frameTree.frames()) {
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this._onFrameAttached(frame);
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if (frame.url())
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this._onNavigationCommitted(frame);
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if (frame.pendingNavigationId())
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this._onNavigationStarted(frame);
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}
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// Report created workers.
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for (const worker of this._frameTree.workers())
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this._onWorkerCreated(worker);
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// Report execution contexts.
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this._browserPage.emit('runtimeExecutionContextsCleared', {});
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for (const context of this._runtime.executionContexts())
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this._onExecutionContextCreated(context);
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if (this._frameTree.isPageReady()) {
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this._browserPage.emit('pageReady', {});
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const mainFrame = this._frameTree.mainFrame();
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const domWindow = mainFrame.domWindow();
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const document = domWindow ? domWindow.document : null;
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const readyState = document ? document.readyState : null;
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// Sometimes we initialize later than the first about:blank page is opened.
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// In this case, the page might've been loaded already, and we need to issue
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// the `DOMContentLoaded` and `load` events.
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if (mainFrame.url() === 'about:blank' && readyState === 'complete')
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this._emitAllEvents(this._frameTree.mainFrame());
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}
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this._eventListeners = [
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helper.addObserver(this._linkClicked.bind(this, false), 'juggler-link-click'),
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helper.addObserver(this._linkClicked.bind(this, true), 'juggler-link-click-sync'),
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helper.addObserver(this._onWindowOpenInNewContext.bind(this), 'juggler-window-open-in-new-context'),
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helper.addObserver(this._filePickerShown.bind(this), 'juggler-file-picker-shown'),
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helper.addObserver(this._onDocumentOpenLoad.bind(this), 'juggler-document-open-loaded'),
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helper.on(this._frameTree, 'frameattached', this._onFrameAttached.bind(this)),
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helper.on(this._frameTree, 'framedetached', this._onFrameDetached.bind(this)),
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helper.on(this._frameTree, 'navigationstarted', this._onNavigationStarted.bind(this)),
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helper.on(this._frameTree, 'navigationcommitted', this._onNavigationCommitted.bind(this)),
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helper.on(this._frameTree, 'navigationaborted', this._onNavigationAborted.bind(this)),
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helper.on(this._frameTree, 'samedocumentnavigation', this._onSameDocumentNavigation.bind(this)),
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helper.on(this._frameTree, 'pageready', () => this._browserPage.emit('pageReady', {})),
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helper.on(this._frameTree, 'workercreated', this._onWorkerCreated.bind(this)),
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helper.on(this._frameTree, 'workerdestroyed', this._onWorkerDestroyed.bind(this)),
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helper.on(this._frameTree, 'websocketcreated', event => this._browserPage.emit('webSocketCreated', event)),
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helper.on(this._frameTree, 'websocketopened', event => this._browserPage.emit('webSocketOpened', event)),
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helper.on(this._frameTree, 'websocketframesent', event => this._browserPage.emit('webSocketFrameSent', event)),
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helper.on(this._frameTree, 'websocketframereceived', event => this._browserPage.emit('webSocketFrameReceived', event)),
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helper.on(this._frameTree, 'websocketclosed', event => this._browserPage.emit('webSocketClosed', event)),
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helper.on(this._frameTree, 'inputevent', inputEvent => {
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this._browserPage.emit('pageInputEvent', inputEvent);
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if (inputEvent.type === 'dragstart') {
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// After the dragStart event is dispatched and handled by Web,
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// it might or might not create a new drag session, depending on its preventing default.
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setTimeout(() => {
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const session = this._getCurrentDragSession();
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this._browserPage.emit('pageInputEvent', { type: 'juggler-drag-finalized', dragSessionStarted: !!session });
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}, 0);
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}
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}),
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helper.addObserver(this._onWindowOpen.bind(this), 'webNavigation-createdNavigationTarget-from-js'),
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this._runtime.events.onErrorFromWorker((domWindow, message, stack, location) => {
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const frame = this._frameTree.frameForDocShell(domWindow.docShell);
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if (!frame)
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return;
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this._browserPage.emit('pageUncaughtError', {
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frameId: frame.id(),
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message,
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stack,
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location,
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});
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}),
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this._runtime.events.onConsoleMessage(msg => this._browserPage.emit('runtimeConsole', msg)),
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this._runtime.events.onRuntimeError(this._onRuntimeError.bind(this)),
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this._runtime.events.onExecutionContextCreated(this._onExecutionContextCreated.bind(this)),
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this._runtime.events.onExecutionContextDestroyed(this._onExecutionContextDestroyed.bind(this)),
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this._runtime.events.onBindingCalled(this._onBindingCalled.bind(this)),
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browserChannel.register('page', {
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adoptNode: this._adoptNode.bind(this),
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crash: this._crash.bind(this),
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describeNode: this._describeNode.bind(this),
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dispatchKeyEvent: this._dispatchKeyEvent.bind(this),
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dispatchDragEvent: this._dispatchDragEvent.bind(this),
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dispatchTouchEvent: this._dispatchTouchEvent.bind(this),
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dispatchTapEvent: this._dispatchTapEvent.bind(this),
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getContentQuads: this._getContentQuads.bind(this),
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insertText: this._insertText.bind(this),
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scrollIntoViewIfNeeded: this._scrollIntoViewIfNeeded.bind(this),
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setFileInputFiles: this._setFileInputFiles.bind(this),
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evaluate: this._runtime.evaluate.bind(this._runtime),
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callFunction: this._runtime.callFunction.bind(this._runtime),
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getObjectProperties: this._runtime.getObjectProperties.bind(this._runtime),
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disposeObject: this._runtime.disposeObject.bind(this._runtime),
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}),
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];
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}
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_emitAllEvents(frame) {
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this._browserPage.emit('pageEventFired', {
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frameId: frame.id(),
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name: 'DOMContentLoaded',
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});
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this._browserPage.emit('pageEventFired', {
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frameId: frame.id(),
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name: 'load',
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});
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}
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_onExecutionContextCreated(executionContext) {
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this._browserPage.emit('runtimeExecutionContextCreated', {
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executionContextId: executionContext.id(),
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auxData: executionContext.auxData(),
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});
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}
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_onExecutionContextDestroyed(executionContext) {
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this._browserPage.emit('runtimeExecutionContextDestroyed', {
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executionContextId: executionContext.id(),
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});
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}
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_onWorkerCreated(worker) {
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const workerData = new WorkerData(this, this._browserChannel, worker);
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this._workerData.set(worker.id(), workerData);
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this._browserPage.emit('pageWorkerCreated', {
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workerId: worker.id(),
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frameId: worker.frame().id(),
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url: worker.url(),
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});
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}
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_onWorkerDestroyed(worker) {
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const workerData = this._workerData.get(worker.id());
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if (!workerData)
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return;
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this._workerData.delete(worker.id());
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workerData.dispose();
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this._browserPage.emit('pageWorkerDestroyed', {
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workerId: worker.id(),
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});
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}
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_onWindowOpen(subject) {
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if (!(subject instanceof Ci.nsIPropertyBag2))
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return;
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const props = subject.QueryInterface(Ci.nsIPropertyBag2);
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const hasUrl = props.hasKey('url');
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const createdDocShell = props.getPropertyAsInterface('createdTabDocShell', Ci.nsIDocShell);
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if (!hasUrl && createdDocShell === this._docShell && this._frameTree.forcePageReady())
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this._emitAllEvents(this._frameTree.mainFrame());
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}
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_linkClicked(sync, anchorElement) {
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if (anchorElement.ownerGlobal.docShell !== this._docShell)
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return;
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this._browserPage.emit('pageLinkClicked', { phase: sync ? 'after' : 'before' });
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}
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_onWindowOpenInNewContext(docShell) {
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// TODO: unify this with _onWindowOpen if possible.
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const frame = this._frameTree.frameForDocShell(docShell);
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if (!frame)
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return;
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this._browserPage.emit('pageWillOpenNewWindowAsynchronously');
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}
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_filePickerShown(inputElement) {
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const frame = this._findFrameForNode(inputElement);
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if (!frame)
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return;
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this._browserPage.emit('pageFileChooserOpened', {
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executionContextId: frame.mainExecutionContext().id(),
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element: frame.mainExecutionContext().rawValueToRemoteObject(inputElement)
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});
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}
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_findFrameForNode(node) {
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return this._frameTree.frames().find(frame => {
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const doc = frame.domWindow().document;
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return node === doc || node.ownerDocument === doc;
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});
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}
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onWindowEvent(event) {
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if (event.type !== 'DOMContentLoaded' && event.type !== 'load')
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return;
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if (!event.target.ownerGlobal)
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return;
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const docShell = event.target.ownerGlobal.docShell;
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const frame = this._frameTree.frameForDocShell(docShell);
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if (!frame)
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return;
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this._browserPage.emit('pageEventFired', {
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frameId: frame.id(),
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name: event.type,
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});
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}
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_onRuntimeError({ executionContext, message, stack, location }) {
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this._browserPage.emit('pageUncaughtError', {
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frameId: executionContext.auxData().frameId,
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message: message.toString(),
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stack: stack.toString(),
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location,
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});
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}
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_onDocumentOpenLoad(document) {
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const docShell = document.ownerGlobal.docShell;
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const frame = this._frameTree.frameForDocShell(docShell);
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if (!frame)
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return;
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this._browserPage.emit('pageEventFired', {
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frameId: frame.id(),
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name: 'load'
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});
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}
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_onNavigationStarted(frame) {
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this._browserPage.emit('pageNavigationStarted', {
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frameId: frame.id(),
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navigationId: frame.pendingNavigationId(),
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});
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}
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_onNavigationAborted(frame, navigationId, errorText) {
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this._browserPage.emit('pageNavigationAborted', {
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frameId: frame.id(),
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navigationId,
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errorText,
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});
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if (!frame._initialNavigationDone && frame !== this._frameTree.mainFrame())
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this._emitAllEvents(frame);
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frame._initialNavigationDone = true;
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}
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_onSameDocumentNavigation(frame) {
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this._browserPage.emit('pageSameDocumentNavigation', {
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frameId: frame.id(),
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url: frame.url(),
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});
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}
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_onNavigationCommitted(frame) {
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if (frame.domWindow().document.isUncommittedInitialDocument)
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return;
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this._browserPage.emit('pageNavigationCommitted', {
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frameId: frame.id(),
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navigationId: frame.lastCommittedNavigationId() || undefined,
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url: frame.url(),
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name: frame.name(),
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});
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frame._initialNavigationDone = true;
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}
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_onFrameAttached(frame) {
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this._browserPage.emit('pageFrameAttached', {
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frameId: frame.id(),
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parentFrameId: frame.parentFrame() ? frame.parentFrame().id() : undefined,
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});
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}
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_onFrameDetached(frame) {
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this._browserPage.emit('pageFrameDetached', {
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frameId: frame.id(),
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});
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}
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_onBindingCalled({executionContextId, name, payload}) {
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this._browserPage.emit('pageBindingCalled', {
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executionContextId,
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name,
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payload
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});
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}
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dispose() {
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for (const workerData of this._workerData.values())
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workerData.dispose();
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this._workerData.clear();
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helper.removeListeners(this._eventListeners);
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}
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async _adoptNode({frameId, objectId, executionContextId}) {
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const frame = this._frameTree.frame(frameId);
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if (!frame)
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throw new Error('Failed to find frame with id = ' + frameId);
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let unsafeObject;
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if (!objectId) {
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unsafeObject = frame.domWindow().frameElement;
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} else {
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unsafeObject = frame.unsafeObject(objectId);
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}
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const context = this._runtime.findExecutionContext(executionContextId);
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const fromPrincipal = unsafeObject.nodePrincipal;
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const toFrame = this._frameTree.frame(context.auxData().frameId);
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const toPrincipal = toFrame.domWindow().document.nodePrincipal;
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if (!toPrincipal.subsumes(fromPrincipal))
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return { remoteObject: null };
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return { remoteObject: context.rawValueToRemoteObject(unsafeObject) };
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}
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async _setFileInputFiles({objectId, frameId, files}) {
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const frame = this._frameTree.frame(frameId);
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if (!frame)
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throw new Error('Failed to find frame with id = ' + frameId);
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const unsafeObject = frame.unsafeObject(objectId);
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if (!unsafeObject)
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throw new Error('Object is not input!');
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let nsFiles;
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if (unsafeObject.webkitdirectory) {
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nsFiles = await new Directory(files[0]).getFiles(true);
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} else {
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nsFiles = await Promise.all(files.map(filePath => File.createFromFileName(filePath)));
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}
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unsafeObject.mozSetFileArray(nsFiles);
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const events = [
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new (frame.domWindow().Event)('input', { bubbles: true, cancelable: true, composed: true }),
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new (frame.domWindow().Event)('change', { bubbles: true, cancelable: true, composed: true }),
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];
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for (const event of events)
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unsafeObject.dispatchEvent(event);
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}
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_getContentQuads({objectId, frameId}) {
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const frame = this._frameTree.frame(frameId);
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if (!frame)
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throw new Error('Failed to find frame with id = ' + frameId);
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const unsafeObject = frame.unsafeObject(objectId);
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if (!unsafeObject.getBoxQuads)
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throw new Error('RemoteObject is not a node');
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const quads = unsafeObject.getBoxQuads({relativeTo: this._frameTree.mainFrame().domWindow().document, recurseWhenNoFrame: true}).map(quad => {
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return {
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p1: {x: quad.p1.x, y: quad.p1.y},
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p2: {x: quad.p2.x, y: quad.p2.y},
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p3: {x: quad.p3.x, y: quad.p3.y},
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p4: {x: quad.p4.x, y: quad.p4.y},
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};
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});
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return {quads};
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}
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_describeNode({objectId, frameId}) {
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const frame = this._frameTree.frame(frameId);
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if (!frame)
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throw new Error('Failed to find frame with id = ' + frameId);
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const unsafeObject = frame.unsafeObject(objectId);
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const browsingContextGroup = frame.docShell().browsingContext.group;
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const frames = this._frameTree.allFramesInBrowsingContextGroup(browsingContextGroup);
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let contentFrame;
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let ownerFrame;
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for (const frame of frames) {
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if (unsafeObject.contentWindow && frame.docShell() === unsafeObject.contentWindow.docShell)
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contentFrame = frame;
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const document = frame.domWindow().document;
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if (unsafeObject === document || unsafeObject.ownerDocument === document)
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ownerFrame = frame;
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}
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return {
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contentFrameId: contentFrame ? contentFrame.id() : undefined,
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ownerFrameId: ownerFrame ? ownerFrame.id() : undefined,
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};
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}
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async _scrollIntoViewIfNeeded({objectId, frameId, rect}) {
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const frame = this._frameTree.frame(frameId);
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if (!frame)
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throw new Error('Failed to find frame with id = ' + frameId);
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const unsafeObject = frame.unsafeObject(objectId);
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if (!unsafeObject.isConnected)
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throw new Error('Node is detached from document');
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if (!rect)
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rect = { x: -1, y: -1, width: -1, height: -1};
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if (unsafeObject.scrollRectIntoViewIfNeeded)
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unsafeObject.scrollRectIntoViewIfNeeded(rect.x, rect.y, rect.width, rect.height);
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else
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throw new Error('Node does not have a layout object');
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}
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_getNodeBoundingBox(unsafeObject) {
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if (!unsafeObject.getBoxQuads)
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throw new Error('RemoteObject is not a node');
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const quads = unsafeObject.getBoxQuads({relativeTo: this._frameTree.mainFrame().domWindow().document});
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if (!quads.length)
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return;
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let x1 = Infinity;
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let y1 = Infinity;
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let x2 = -Infinity;
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let y2 = -Infinity;
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for (const quad of quads) {
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const boundingBox = quad.getBounds();
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x1 = Math.min(boundingBox.x, x1);
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y1 = Math.min(boundingBox.y, y1);
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x2 = Math.max(boundingBox.x + boundingBox.width, x2);
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y2 = Math.max(boundingBox.y + boundingBox.height, y2);
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}
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return {x: x1, y: y1, width: x2 - x1, height: y2 - y1};
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}
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async _dispatchKeyEvent({type, keyCode, code, key, repeat, location, text}) {
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const frame = this._frameTree.mainFrame();
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const tip = frame.textInputProcessor();
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let keyEvent = new (frame.domWindow().KeyboardEvent)("", {
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key,
|
|
code,
|
|
location,
|
|
repeat,
|
|
keyCode
|
|
});
|
|
if (type === 'keydown') {
|
|
if (text && text !== key) {
|
|
tip.commitCompositionWith(text, keyEvent);
|
|
} else {
|
|
const flags = 0;
|
|
tip.keydown(keyEvent, flags);
|
|
}
|
|
} else if (type === 'keyup') {
|
|
if (text)
|
|
throw new Error(`keyup does not support text option`);
|
|
const flags = 0;
|
|
tip.keyup(keyEvent, flags);
|
|
} else {
|
|
throw new Error(`Unknown type ${type}`);
|
|
}
|
|
}
|
|
|
|
async _dispatchTouchEvent({type, touchPoints, modifiers}) {
|
|
const frame = this._frameTree.mainFrame();
|
|
const defaultPrevented = frame.domWindow().synthesizeTouchEvent(
|
|
type.toLowerCase(),
|
|
touchPoints.map((point, id) => ({
|
|
identifier: id,
|
|
offsetX: point.x,
|
|
offsetY: point.y,
|
|
radiiX: point.radiusX ?? 1.0,
|
|
radiiY: point.radiusY ?? 1.0,
|
|
rotationAngle: point.rotationAngle ?? 0.0,
|
|
pressure: point.force ?? 1.0,
|
|
tiltX: 0,
|
|
tiltY: 0,
|
|
twist: 0,
|
|
})),
|
|
modifiers
|
|
);
|
|
return {defaultPrevented};
|
|
}
|
|
|
|
async _dispatchTapEvent({x, y, modifiers}) {
|
|
// Force a layout at the point in question, because touch events
|
|
// do not seem to trigger one like mouse events.
|
|
this._frameTree.mainFrame().domWindow().windowUtils.elementFromPoint(
|
|
x,
|
|
y,
|
|
false /* aIgnoreRootScrollFrame */,
|
|
true /* aFlushLayout */);
|
|
|
|
await this._dispatchTouchEvent({
|
|
type: 'touchstart',
|
|
modifiers,
|
|
touchPoints: [{x, y}]
|
|
});
|
|
await this._dispatchTouchEvent({
|
|
type: 'touchend',
|
|
modifiers,
|
|
touchPoints: [{x, y}]
|
|
});
|
|
}
|
|
|
|
_getCurrentDragSession() {
|
|
const frame = this._frameTree.mainFrame();
|
|
const domWindow = frame?.domWindow();
|
|
return domWindow ? dragService.getCurrentSession(domWindow) : undefined;
|
|
}
|
|
|
|
async _dispatchDragEvent({type, x, y, modifiers}) {
|
|
const session = this._getCurrentDragSession();
|
|
const dropEffect = session.dataTransfer.dropEffect;
|
|
|
|
if ((type === 'drop' && dropEffect !== 'none') || type === 'dragover') {
|
|
const win = this._frameTree.mainFrame().domWindow();
|
|
win.synthesizeMouseEvent(
|
|
type,
|
|
x,
|
|
y,
|
|
{
|
|
button: 0,
|
|
buttons: 0,
|
|
clickCount: 0,
|
|
modifiers,
|
|
pressure: 0.0,
|
|
inputSource: MouseEvent.MOZ_SOURCE_MOUSE,
|
|
},
|
|
{
|
|
ignoreRootScrollFrame: false,
|
|
isDOMEventSynthesized: true,
|
|
isWidgetEventSynthesized: false,
|
|
}
|
|
);
|
|
return;
|
|
}
|
|
if (type === 'dragend') {
|
|
const session = this._getCurrentDragSession();
|
|
session?.endDragSession(true);
|
|
return;
|
|
}
|
|
}
|
|
|
|
async _insertText({text}) {
|
|
const frame = this._frameTree.mainFrame();
|
|
frame.textInputProcessor().commitCompositionWith(text);
|
|
}
|
|
|
|
async _crash() {
|
|
dump(`Crashing intentionally\n`);
|
|
// This is to intentionally crash the frame.
|
|
// We crash by using js-ctypes and dereferencing
|
|
// a bad pointer. The crash should happen immediately
|
|
// upon loading this frame script.
|
|
const { ctypes } = ChromeUtils.importESModule('resource://gre/modules/ctypes.sys.mjs');
|
|
ChromeUtils.privateNoteIntentionalCrash();
|
|
const zero = new ctypes.intptr_t(8);
|
|
const badptr = ctypes.cast(zero, ctypes.PointerType(ctypes.int32_t));
|
|
badptr.contents;
|
|
}
|
|
}
|
|
|