diff options
Diffstat (limited to 'remote/webdriver-bidi/modules/windowglobal')
4 files changed, 1003 insertions, 0 deletions
diff --git a/remote/webdriver-bidi/modules/windowglobal/browsingContext.sys.mjs b/remote/webdriver-bidi/modules/windowglobal/browsingContext.sys.mjs new file mode 100644 index 0000000000..675626353c --- /dev/null +++ b/remote/webdriver-bidi/modules/windowglobal/browsingContext.sys.mjs @@ -0,0 +1,159 @@ +/* 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/. */ + +import { WindowGlobalBiDiModule } from "chrome://remote/content/webdriver-bidi/modules/WindowGlobalBiDiModule.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + LoadListener: "chrome://remote/content/shared/listeners/LoadListener.sys.mjs", +}); + +class BrowsingContextModule extends WindowGlobalBiDiModule { + #loadListener; + #subscribedEvents; + + constructor(messageHandler) { + super(messageHandler); + + // Setup the LoadListener as early as possible. + this.#loadListener = new lazy.LoadListener(this.messageHandler.window); + this.#loadListener.on("DOMContentLoaded", this.#onDOMContentLoaded); + this.#loadListener.on("load", this.#onLoad); + + // Set of event names which have active subscriptions. + this.#subscribedEvents = new Set(); + } + + destroy() { + this.#loadListener.destroy(); + this.#subscribedEvents = null; + } + + #getNavigationInfo(data) { + return { + context: this.messageHandler.context, + // TODO: The navigation id should be a real id mapped to the navigation. + // See https://bugzilla.mozilla.org/show_bug.cgi?id=1763122 + navigation: null, + timestamp: Date.now(), + url: data.target.URL, + }; + } + + #startListening() { + if (this.#subscribedEvents.size == 0) { + this.#loadListener.startListening(); + } + } + + #stopListening() { + if (this.#subscribedEvents.size == 0) { + this.#loadListener.stopListening(); + } + } + + #subscribeEvent(event) { + switch (event) { + case "browsingContext._documentInteractive": + this.#startListening(); + this.#subscribedEvents.add("browsingContext._documentInteractive"); + break; + case "browsingContext.domContentLoaded": + this.#startListening(); + this.#subscribedEvents.add("browsingContext.domContentLoaded"); + break; + case "browsingContext.load": + this.#startListening(); + this.#subscribedEvents.add("browsingContext.load"); + break; + } + } + + #unsubscribeEvent(event) { + switch (event) { + case "browsingContext._documentInteractive": + this.#subscribedEvents.delete("browsingContext._documentInteractive"); + break; + case "browsingContext.domContentLoaded": + this.#subscribedEvents.delete("browsingContext.domContentLoaded"); + break; + case "browsingContext.load": + this.#subscribedEvents.delete("browsingContext.load"); + break; + } + + this.#stopListening(); + } + + #onDOMContentLoaded = (eventName, data) => { + if (this.#subscribedEvents.has("browsingContext._documentInteractive")) { + this.messageHandler.emitEvent("browsingContext._documentInteractive", { + baseURL: data.target.baseURI, + contextId: this.messageHandler.contextId, + documentURL: data.target.URL, + innerWindowId: this.messageHandler.innerWindowId, + readyState: data.target.readyState, + }); + } + + if (this.#subscribedEvents.has("browsingContext.domContentLoaded")) { + this.emitEvent( + "browsingContext.domContentLoaded", + this.#getNavigationInfo(data) + ); + } + }; + + #onLoad = (eventName, data) => { + if (this.#subscribedEvents.has("browsingContext.load")) { + this.emitEvent("browsingContext.load", this.#getNavigationInfo(data)); + } + }; + + /** + * Internal commands + */ + + _applySessionData(params) { + // TODO: Bug 1775231. Move this logic to a shared module or an abstract + // class. + const { category } = params; + if (category === "event") { + const filteredSessionData = params.sessionData.filter(item => + this.messageHandler.matchesContext(item.contextDescriptor) + ); + for (const event of this.#subscribedEvents.values()) { + const hasSessionItem = filteredSessionData.some( + item => item.value === event + ); + // If there are no session items for this context, we should unsubscribe from the event. + if (!hasSessionItem) { + this.#unsubscribeEvent(event); + } + } + + // Subscribe to all events, which have an item in SessionData. + for (const { value } of filteredSessionData) { + this.#subscribeEvent(value); + } + } + } + + _getBaseURL() { + return this.messageHandler.window.document.baseURI; + } + + _getScreenshotRect() { + const win = this.messageHandler.window; + return new DOMRect( + win.pageXOffset, + win.pageYOffset, + win.innerWidth, + win.innerHeight + ); + } +} + +export const browsingContext = BrowsingContextModule; diff --git a/remote/webdriver-bidi/modules/windowglobal/input.sys.mjs b/remote/webdriver-bidi/modules/windowglobal/input.sys.mjs new file mode 100644 index 0000000000..24259151ee --- /dev/null +++ b/remote/webdriver-bidi/modules/windowglobal/input.sys.mjs @@ -0,0 +1,103 @@ +/* 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/. */ + +import { WindowGlobalBiDiModule } from "chrome://remote/content/webdriver-bidi/modules/WindowGlobalBiDiModule.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + action: "chrome://remote/content/shared/webdriver/Actions.sys.mjs", + deserialize: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + element: "chrome://remote/content/marionette/element.sys.mjs", + error: "chrome://remote/content/shared/webdriver/Errors.sys.mjs", +}); + +class InputModule extends WindowGlobalBiDiModule { + #actionState; + + constructor(messageHandler) { + super(messageHandler); + + this.#actionState = null; + } + + destroy() {} + + async performActions(options) { + const { actions } = options; + if (this.#actionState === null) { + this.#actionState = new lazy.action.State({ + specCompatPointerOrigin: true, + }); + } + + await this.#deserializeActionOrigins(actions); + const actionChain = lazy.action.Chain.fromJSON(this.#actionState, actions); + await actionChain.dispatch(this.#actionState, this.messageHandler.window); + } + + async releaseActions() { + if (this.#actionState === null) { + return; + } + await this.#actionState.release(this.messageHandler.window); + this.#actionState = null; + } + + /** + * In the provided array of input.SourceActions, replace all origins matching + * the input.ElementOrigin production with the Element corresponding to this + * origin. + * + * Note that this method replaces the content of the `actions` in place, and + * does not return a new array. + * + * @param {Array<input.SourceActions>} actions + * The array of SourceActions to deserialize. + * @returns {Promise} + * A promise which resolves when all ElementOrigin origins have been + * deserialized. + */ + async #deserializeActionOrigins(actions) { + const promises = []; + for (const actionsByTick of actions) { + for (const action of actionsByTick.actions) { + if (action.origin?.type === "element") { + promises.push( + (async () => { + action.origin = await this.#getElementFromElementOrigin( + action.origin + ); + })() + ); + } + } + } + return Promise.all(promises); + } + + async #getElementFromElementOrigin(origin) { + const sharedReference = origin.element; + if (typeof sharedReference?.sharedId !== "string") { + throw new lazy.error.InvalidArgumentError( + `Expected "origin.element" to be a SharedReference, got: ${sharedReference}` + ); + } + + const realm = this.messageHandler.getRealm(); + + const element = lazy.deserialize(realm, sharedReference, { + nodeCache: this.nodeCache, + }); + if (!lazy.element.isElement(element)) { + throw new lazy.error.NoSuchElementError( + `No element found for shared id: ${sharedReference.sharedId}` + ); + } + + return element; + } +} + +export const input = InputModule; diff --git a/remote/webdriver-bidi/modules/windowglobal/log.sys.mjs b/remote/webdriver-bidi/modules/windowglobal/log.sys.mjs new file mode 100644 index 0000000000..ad83253804 --- /dev/null +++ b/remote/webdriver-bidi/modules/windowglobal/log.sys.mjs @@ -0,0 +1,258 @@ +/* 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/. */ + +import { WindowGlobalBiDiModule } from "chrome://remote/content/webdriver-bidi/modules/WindowGlobalBiDiModule.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + ConsoleAPIListener: + "chrome://remote/content/shared/listeners/ConsoleAPIListener.sys.mjs", + ConsoleListener: + "chrome://remote/content/shared/listeners/ConsoleListener.sys.mjs", + isChromeFrame: "chrome://remote/content/shared/Stack.sys.mjs", + OwnershipModel: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + serialize: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + setDefaultSerializationOptions: + "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", +}); + +class LogModule extends WindowGlobalBiDiModule { + #consoleAPIListener; + #consoleMessageListener; + #subscribedEvents; + + constructor(messageHandler) { + super(messageHandler); + + // Create the console-api listener and listen on "message" events. + this.#consoleAPIListener = new lazy.ConsoleAPIListener( + this.messageHandler.innerWindowId + ); + this.#consoleAPIListener.on("message", this.#onConsoleAPIMessage); + + // Create the console listener and listen on error messages. + this.#consoleMessageListener = new lazy.ConsoleListener( + this.messageHandler.innerWindowId + ); + this.#consoleMessageListener.on("error", this.#onJavaScriptError); + + // Set of event names which have active subscriptions. + this.#subscribedEvents = new Set(); + } + + destroy() { + this.#consoleAPIListener.off("message", this.#onConsoleAPIMessage); + this.#consoleAPIListener.destroy(); + this.#consoleMessageListener.off("error", this.#onJavaScriptError); + this.#consoleMessageListener.destroy(); + + this.#subscribedEvents = null; + } + + #buildSource(realm) { + return { + realm: realm.id, + context: this.messageHandler.context, + }; + } + + /** + * Map the internal stacktrace representation to a WebDriver BiDi + * compatible one. + * + * Currently chrome frames will be filtered out until chrome scope + * is supported (bug 1722679). + * + * @param {Array<StackFrame>=} stackTrace + * Stack frames to process. + * + * @returns {object=} Object, containing the list of frames as `callFrames`. + */ + #buildStackTrace(stackTrace) { + if (stackTrace == undefined) { + return undefined; + } + + const callFrames = stackTrace + .filter(frame => !lazy.isChromeFrame(frame)) + .map(frame => { + return { + columnNumber: frame.columnNumber - 1, + functionName: frame.functionName, + lineNumber: frame.lineNumber - 1, + url: frame.filename, + }; + }); + + return { callFrames }; + } + + #getLogEntryLevelFromConsoleMethod(method) { + switch (method) { + case "assert": + case "error": + return "error"; + case "debug": + case "trace": + return "debug"; + case "warn": + return "warn"; + default: + return "info"; + } + } + + #onConsoleAPIMessage = (eventName, data = {}) => { + const { + // `arguments` cannot be used as variable name in functions + arguments: messageArguments, + // `level` corresponds to the console method used + level: method, + stacktrace, + timeStamp, + } = data; + + // Step numbers below refer to the specifications at + // https://w3c.github.io/webdriver-bidi/#event-log-entryAdded + + // Translate the console message method to a log.LogEntry level + const logEntrylevel = this.#getLogEntryLevelFromConsoleMethod(method); + + // Use the message's timeStamp or fallback on the current time value. + const timestamp = timeStamp || Date.now(); + + // Start assembling the text representation of the message. + let text = ""; + + // Formatters have already been applied at this points. + // message.arguments corresponds to the "formatted args" from the + // specifications. + + // Concatenate all formatted arguments in text + // TODO: For m1 we only support string arguments, so we rely on the builtin + // toString for each argument which will be available in message.arguments. + const args = messageArguments || []; + text += args.map(String).join(" "); + + // Serialize each arg as remote value. + const defaultRealm = this.messageHandler.getRealm(); + const nodeCache = this.nodeCache; + const serializedArgs = []; + for (const arg of args) { + // Note that we can pass a default realm for now since realms are only + // involved when creating object references, which will not happen with + // OwnershipModel.None. This will be revisited in Bug 1742589. + serializedArgs.push( + lazy.serialize( + Cu.waiveXrays(arg), + lazy.setDefaultSerializationOptions(), + lazy.OwnershipModel.None, + new Map(), + defaultRealm, + { + nodeCache, + } + ) + ); + } + + // Set source to an object which contains realm and browsing context. + // TODO: Bug 1742589. Use an actual realm from which the event came from. + const source = this.#buildSource(defaultRealm); + + // Set stack trace only for certain methods. + let stackTrace; + if (["assert", "error", "trace", "warn"].includes(method)) { + stackTrace = this.#buildStackTrace(stacktrace); + } + + // Build the ConsoleLogEntry + const entry = { + type: "console", + method, + source, + args: serializedArgs, + level: logEntrylevel, + text, + timestamp, + stackTrace, + }; + + // TODO: Those steps relate to: + // - emitting associated BrowsingContext. See log.entryAdded full support + // in https://bugzilla.mozilla.org/show_bug.cgi?id=1724669#c0 + // - handling cases where session doesn't exist or the event is not + // monitored. The implementation differs from the spec here because we + // only react to events if there is a session & if the session subscribed + // to those events. + + this.emitEvent("log.entryAdded", entry); + }; + + #onJavaScriptError = (eventName, data = {}) => { + const { level, message, stacktrace, timeStamp } = data; + const defaultRealm = this.messageHandler.getRealm(); + + // Build the JavascriptLogEntry + const entry = { + type: "javascript", + level, + // TODO: Bug 1742589. Use an actual realm from which the event came from. + source: this.#buildSource(defaultRealm), + text: message, + timestamp: timeStamp || Date.now(), + stackTrace: this.#buildStackTrace(stacktrace), + }; + + this.emitEvent("log.entryAdded", entry); + }; + + #subscribeEvent(event) { + if (event === "log.entryAdded") { + this.#consoleAPIListener.startListening(); + this.#consoleMessageListener.startListening(); + this.#subscribedEvents.add(event); + } + } + + #unsubscribeEvent(event) { + if (event === "log.entryAdded") { + this.#consoleAPIListener.stopListening(); + this.#consoleMessageListener.stopListening(); + this.#subscribedEvents.delete(event); + } + } + + /** + * Internal commands + */ + + _applySessionData(params) { + // TODO: Bug 1775231. Move this logic to a shared module or an abstract + // class. + const { category } = params; + if (category === "event") { + const filteredSessionData = params.sessionData.filter(item => + this.messageHandler.matchesContext(item.contextDescriptor) + ); + for (const event of this.#subscribedEvents.values()) { + const hasSessionItem = filteredSessionData.some( + item => item.value === event + ); + // If there are no session items for this context, we should unsubscribe from the event. + if (!hasSessionItem) { + this.#unsubscribeEvent(event); + } + } + + // Subscribe to all events, which have an item in SessionData. + for (const { value } of filteredSessionData) { + this.#subscribeEvent(value); + } + } + } +} + +export const log = LogModule; diff --git a/remote/webdriver-bidi/modules/windowglobal/script.sys.mjs b/remote/webdriver-bidi/modules/windowglobal/script.sys.mjs new file mode 100644 index 0000000000..7b88f5c96e --- /dev/null +++ b/remote/webdriver-bidi/modules/windowglobal/script.sys.mjs @@ -0,0 +1,483 @@ +/* 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/. */ + +import { WindowGlobalBiDiModule } from "chrome://remote/content/webdriver-bidi/modules/WindowGlobalBiDiModule.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + deserialize: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + error: "chrome://remote/content/shared/webdriver/Errors.sys.mjs", + getFramesFromStack: "chrome://remote/content/shared/Stack.sys.mjs", + isChromeFrame: "chrome://remote/content/shared/Stack.sys.mjs", + OwnershipModel: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + serialize: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + setDefaultSerializationOptions: + "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", + stringify: "chrome://remote/content/webdriver-bidi/RemoteValue.sys.mjs", +}); + +/** + * @typedef {string} EvaluationStatus + */ + +/** + * Enum of possible evaluation states. + * + * @readonly + * @enum {EvaluationStatus} + */ +const EvaluationStatus = { + Normal: "normal", + Throw: "throw", +}; + +class ScriptModule extends WindowGlobalBiDiModule { + #observerListening; + #preloadScripts; + + constructor(messageHandler) { + super(messageHandler); + + // Set of structs with an item named expression, which is a string, + // and an item named sandbox which is a string or null. + this.#preloadScripts = new Set(); + } + + destroy() { + this.#preloadScripts = null; + + this.#stopObserving(); + } + + observe(subject, topic) { + if (topic !== "document-element-inserted") { + return; + } + + const window = subject?.defaultView; + + // Ignore events without a window and those from other tabs. + if (window === this.messageHandler.window) { + this.#evaluatePreloadScripts(); + } + } + + #buildExceptionDetails(exception, stack, realm, resultOwnership, options) { + exception = this.#toRawObject(exception); + + // A stacktrace is mandatory to build exception details and a missing stack + // means we encountered an unexpected issue. Throw with an explicit error. + if (!stack) { + throw new Error( + `Missing stack, unable to build exceptionDetails for exception: ${lazy.stringify( + exception + )}` + ); + } + + const frames = lazy.getFramesFromStack(stack) || []; + const callFrames = frames + // Remove chrome/internal frames + .filter(frame => !lazy.isChromeFrame(frame)) + // Translate frames from getFramesFromStack to frames expected by + // WebDriver BiDi. + .map(frame => { + return { + columnNumber: frame.columnNumber - 1, + functionName: frame.functionName, + lineNumber: frame.lineNumber - 1, + url: frame.filename, + }; + }); + + return { + columnNumber: stack.column - 1, + exception: lazy.serialize( + exception, + lazy.setDefaultSerializationOptions(), + resultOwnership, + new Map(), + realm, + options + ), + lineNumber: stack.line - 1, + stackTrace: { callFrames }, + text: lazy.stringify(exception), + }; + } + + async #buildReturnValue( + rv, + realm, + awaitPromise, + resultOwnership, + serializationOptions, + options + ) { + let evaluationStatus, exception, result, stack; + + if ("return" in rv) { + evaluationStatus = EvaluationStatus.Normal; + if ( + awaitPromise && + // Only non-primitive return values are wrapped in Debugger.Object. + rv.return instanceof Debugger.Object && + rv.return.isPromise + ) { + try { + // Force wrapping the promise resolution result in a Debugger.Object + // wrapper for consistency with the synchronous codepath. + const asyncResult = await rv.return.unsafeDereference(); + result = realm.globalObjectReference.makeDebuggeeValue(asyncResult); + } catch (asyncException) { + evaluationStatus = EvaluationStatus.Throw; + exception = + realm.globalObjectReference.makeDebuggeeValue(asyncException); + + // If the returned promise was rejected by calling its reject callback + // the stack will be available on promiseResolutionSite. + // Otherwise, (eg. rejected Promise chained with a then() call) we + // fallback on the promiseAllocationSite. + stack = + rv.return.promiseResolutionSite || rv.return.promiseAllocationSite; + } + } else { + // rv.return is a Debugger.Object or a primitive. + result = rv.return; + } + } else if ("throw" in rv) { + // rv.throw will be set if the evaluation synchronously failed, either if + // the script contains a syntax error or throws an exception. + evaluationStatus = EvaluationStatus.Throw; + exception = rv.throw; + stack = rv.stack; + } + + switch (evaluationStatus) { + case EvaluationStatus.Normal: + return { + evaluationStatus, + result: lazy.serialize( + this.#toRawObject(result), + serializationOptions, + resultOwnership, + new Map(), + realm, + options + ), + realmId: realm.id, + }; + case EvaluationStatus.Throw: + return { + evaluationStatus, + exceptionDetails: this.#buildExceptionDetails( + exception, + stack, + realm, + resultOwnership, + options + ), + realmId: realm.id, + }; + default: + throw new lazy.error.UnsupportedOperationError( + `Unsupported completion value for expression evaluation` + ); + } + } + + /** + * Emit "script.message" event with provided data. + * + * @param {Realm} realm + * @param {ChannelProperties} channelProperties + * @param {RemoteValue} message + */ + #emitScriptMessage = (realm, channelProperties, message) => { + const { + channel, + ownership: ownershipType = lazy.OwnershipModel.None, + serializationOptions, + } = channelProperties; + + const data = lazy.serialize( + this.#toRawObject(message), + lazy.setDefaultSerializationOptions(serializationOptions), + ownershipType, + new Map(), + realm + ); + + this.emitEvent("script.message", { + channel, + data, + source: this.#getSource(realm), + }); + }; + + #evaluatePreloadScripts() { + let resolveBlockerPromise; + const blockerPromise = new Promise(resolve => { + resolveBlockerPromise = resolve; + }); + + // Block script parsing. + this.messageHandler.window.document.blockParsing(blockerPromise); + for (const script of this.#preloadScripts.values()) { + const { + arguments: commandArguments, + functionDeclaration, + sandbox, + } = script; + const realm = this.messageHandler.getRealm({ sandboxName: sandbox }); + const deserializedArguments = commandArguments.map(arg => + lazy.deserialize(realm, arg, { + emitScriptMessage: this.#emitScriptMessage, + }) + ); + const rv = realm.executeInGlobalWithBindings( + functionDeclaration, + deserializedArguments + ); + + if ("throw" in rv) { + const exception = this.#toRawObject(rv.throw); + realm.reportError(lazy.stringify(exception), rv.stack); + } + } + + // Continue script parsing. + resolveBlockerPromise(); + } + + #getSource(realm) { + return { + realm: realm.id, + context: this.messageHandler.context, + }; + } + + #startObserving() { + if (!this.#observerListening) { + Services.obs.addObserver(this, "document-element-inserted"); + this.#observerListening = true; + } + } + + #stopObserving() { + if (this.#observerListening) { + Services.obs.removeObserver(this, "document-element-inserted"); + this.#observerListening = false; + } + } + + #toRawObject(maybeDebuggerObject) { + if (maybeDebuggerObject instanceof Debugger.Object) { + // Retrieve the referent for the provided Debugger.object. + // See https://firefox-source-docs.mozilla.org/devtools-user/debugger-api/debugger.object/index.html + const rawObject = maybeDebuggerObject.unsafeDereference(); + + // TODO: Getters for Maps and Sets iterators return "Opaque" objects and + // are not iterable. RemoteValue.jsm' serializer should handle calling + // waiveXrays on Maps/Sets/... and then unwaiveXrays on entries but since + // we serialize with maxDepth=1, calling waiveXrays once on the root + // object allows to return correctly serialized values. + return Cu.waiveXrays(rawObject); + } + + // If maybeDebuggerObject was not a Debugger.Object, it is a primitive value + // which can be used as is. + return maybeDebuggerObject; + } + + /** + * Call a function in the current window global. + * + * @param {object} options + * @param {boolean} options.awaitPromise + * Determines if the command should wait for the return value of the + * expression to resolve, if this return value is a Promise. + * @param {Array<RemoteValue>=} options.commandArguments + * The arguments to pass to the function call. + * @param {string} options.functionDeclaration + * The body of the function to call. + * @param {string=} options.realmId + * The id of the realm. + * @param {OwnershipModel} options.resultOwnership + * The ownership model to use for the results of this evaluation. + * @param {string=} options.sandbox + * The name of the sandbox. + * @param {SerializationOptions=} options.serializationOptions + * An object which holds the information of how the result of evaluation + * in case of ECMAScript objects should be serialized. + * @param {RemoteValue=} options.thisParameter + * The value of the this keyword for the function call. + * + * @returns {object} + * - evaluationStatus {EvaluationStatus} One of "normal", "throw". + * - exceptionDetails {ExceptionDetails=} the details of the exception if + * the evaluation status was "throw". + * - result {RemoteValue=} the result of the evaluation serialized as a + * RemoteValue if the evaluation status was "normal". + */ + async callFunctionDeclaration(options) { + const { + awaitPromise, + commandArguments = null, + functionDeclaration, + realmId = null, + resultOwnership, + sandbox: sandboxName = null, + serializationOptions, + thisParameter = null, + } = options; + + const realm = this.messageHandler.getRealm({ realmId, sandboxName }); + const nodeCache = this.nodeCache; + + const deserializedArguments = + commandArguments !== null + ? commandArguments.map(arg => + lazy.deserialize(realm, arg, { + emitScriptMessage: this.#emitScriptMessage, + nodeCache, + }) + ) + : []; + + const deserializedThis = + thisParameter !== null + ? lazy.deserialize(realm, thisParameter, { + emitScriptMessage: this.#emitScriptMessage, + nodeCache, + }) + : null; + + const rv = realm.executeInGlobalWithBindings( + functionDeclaration, + deserializedArguments, + deserializedThis + ); + + return this.#buildReturnValue( + rv, + realm, + awaitPromise, + resultOwnership, + serializationOptions, + { + nodeCache, + } + ); + } + + /** + * Delete the provided handles from the realm corresponding to the provided + * sandbox name. + * + * @param {object=} options + * @param {Array<string>} options.handles + * Array of handle ids to disown. + * @param {string=} options.realmId + * The id of the realm. + * @param {string=} options.sandbox + * The name of the sandbox. + */ + disownHandles(options) { + const { handles, realmId = null, sandbox: sandboxName = null } = options; + const realm = this.messageHandler.getRealm({ realmId, sandboxName }); + for (const handle of handles) { + realm.removeObjectHandle(handle); + } + } + + /** + * Evaluate a provided expression in the current window global. + * + * @param {object} options + * @param {boolean} options.awaitPromise + * Determines if the command should wait for the return value of the + * expression to resolve, if this return value is a Promise. + * @param {string} options.expression + * The expression to evaluate. + * @param {string=} options.realmId + * The id of the realm. + * @param {OwnershipModel} options.resultOwnership + * The ownership model to use for the results of this evaluation. + * @param {string=} options.sandbox + * The name of the sandbox. + * + * @returns {object} + * - evaluationStatus {EvaluationStatus} One of "normal", "throw". + * - exceptionDetails {ExceptionDetails=} the details of the exception if + * the evaluation status was "throw". + * - result {RemoteValue=} the result of the evaluation serialized as a + * RemoteValue if the evaluation status was "normal". + */ + async evaluateExpression(options) { + const { + awaitPromise, + expression, + realmId = null, + resultOwnership, + sandbox: sandboxName = null, + serializationOptions, + } = options; + + const realm = this.messageHandler.getRealm({ realmId, sandboxName }); + + const rv = realm.executeInGlobal(expression); + + return this.#buildReturnValue( + rv, + realm, + awaitPromise, + resultOwnership, + serializationOptions, + { + nodeCache: this.nodeCache, + } + ); + } + + /** + * Get realms for the current window global. + * + * @returns {Array<object>} + * - context {BrowsingContext} The browsing context, associated with the realm. + * - origin {string} The serialization of an origin. + * - realm {string} The realm unique identifier. + * - sandbox {string=} The name of the sandbox. + * - type {RealmType.Window} The window realm type. + */ + getWindowRealms() { + return Array.from(this.messageHandler.realms.values()).map(realm => { + const { context, origin, realm: id, sandbox, type } = realm.getInfo(); + return { context, origin, realm: id, sandbox, type }; + }); + } + + /** + * Internal commands + */ + + _applySessionData(params) { + // We only care about updates coming on context creation. + if (params.category === "preload-script" && params.initial) { + this.#preloadScripts = new Set(); + for (const item of params.sessionData) { + if (this.messageHandler.matchesContext(item.contextDescriptor)) { + this.#preloadScripts.add(item.value); + } + } + + if (this.#preloadScripts.size) { + this.#startObserving(); + } + } + } +} + +export const script = ScriptModule; |