Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 497 insertions, 0 deletions

diff --git a/remote/marionette/sync.sys.mjs b/remote/marionette/sync.sys.mjs
new file mode 100644
index 0000000000..890773bfbe
--- /dev/null
+++ b/remote/marionette/sync.sys.mjs
@@ -0,0 +1,497 @@
+/* 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 { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
+
+import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  error: "chrome://remote/content/shared/webdriver/Errors.sys.mjs",
+  Log: "chrome://remote/content/shared/Log.sys.mjs",
+});
+
+XPCOMUtils.defineLazyGetter(lazy, "logger", () =>
+  lazy.Log.get(lazy.Log.TYPES.MARIONETTE)
+);
+
+const { TYPE_ONE_SHOT, TYPE_REPEATING_SLACK } = Ci.nsITimer;
+
+const PROMISE_TIMEOUT = AppConstants.DEBUG ? 4500 : 1500;
+
+/**
+ * Dispatch a function to be executed on the main thread.
+ *
+ * @param {function} func
+ *     Function to be executed.
+ */
+export function executeSoon(func) {
+  if (typeof func != "function") {
+    throw new TypeError();
+  }
+
+  Services.tm.dispatchToMainThread(func);
+}
+
+/**
+ * Runs a Promise-like function off the main thread until it is resolved
+ * through ``resolve`` or ``rejected`` callbacks.  The function is
+ * guaranteed to be run at least once, irregardless of the timeout.
+ *
+ * The ``func`` is evaluated every ``interval`` for as long as its
+ * runtime duration does not exceed ``interval``.  Evaluations occur
+ * sequentially, meaning that evaluations of ``func`` are queued if
+ * the runtime evaluation duration of ``func`` is greater than ``interval``.
+ *
+ * ``func`` is given two arguments, ``resolve`` and ``reject``,
+ * of which one must be called for the evaluation to complete.
+ * Calling ``resolve`` with an argument indicates that the expected
+ * wait condition was met and will return the passed value to the
+ * caller.  Conversely, calling ``reject`` will evaluate ``func``
+ * again until the ``timeout`` duration has elapsed or ``func`` throws.
+ * The passed value to ``reject`` will also be returned to the caller
+ * once the wait has expired.
+ *
+ * Usage::
+ *
+ *     let els = new PollPromise((resolve, reject) => {
+ *       let res = document.querySelectorAll("p");
+ *       if (res.length > 0) {
+ *         resolve(Array.from(res));
+ *       } else {
+ *         reject([]);
+ *       }
+ *     }, {timeout: 1000});
+ *
+ * @param {Condition} func
+ *     Function to run off the main thread.
+ * @param {number=} [timeout] timeout
+ *     Desired timeout if wanted.  If 0 or less than the runtime evaluation
+ *     time of ``func``, ``func`` is guaranteed to run at least once.
+ *     Defaults to using no timeout.
+ * @param {number=} [interval=10] interval
+ *     Duration between each poll of ``func`` in milliseconds.
+ *     Defaults to 10 milliseconds.
+ *
+ * @return {Promise.<*>}
+ *     Yields the value passed to ``func``'s
+ *     ``resolve`` or ``reject`` callbacks.
+ *
+ * @throws {*}
+ *     If ``func`` throws, its error is propagated.
+ * @throws {TypeError}
+ *     If `timeout` or `interval`` are not numbers.
+ * @throws {RangeError}
+ *     If `timeout` or `interval` are not unsigned integers.
+ */
+export function PollPromise(func, { timeout = null, interval = 10 } = {}) {
+  const timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+
+  if (typeof func != "function") {
+    throw new TypeError();
+  }
+  if (timeout != null && typeof timeout != "number") {
+    throw new TypeError();
+  }
+  if (typeof interval != "number") {
+    throw new TypeError();
+  }
+  if (
+    (timeout && (!Number.isInteger(timeout) || timeout < 0)) ||
+    !Number.isInteger(interval) ||
+    interval < 0
+  ) {
+    throw new RangeError();
+  }
+
+  return new Promise((resolve, reject) => {
+    let start, end;
+
+    if (Number.isInteger(timeout)) {
+      start = new Date().getTime();
+      end = start + timeout;
+    }
+
+    let evalFn = () => {
+      new Promise(func)
+        .then(resolve, rejected => {
+          if (lazy.error.isError(rejected)) {
+            throw rejected;
+          }
+
+          // return if there is a timeout and set to 0,
+          // allowing |func| to be evaluated at least once
+          if (
+            typeof end != "undefined" &&
+            (start == end || new Date().getTime() >= end)
+          ) {
+            resolve(rejected);
+          }
+        })
+        .catch(reject);
+    };
+
+    // the repeating slack timer waits |interval|
+    // before invoking |evalFn|
+    evalFn();
+
+    timer.init(evalFn, interval, TYPE_REPEATING_SLACK);
+  }).then(
+    res => {
+      timer.cancel();
+      return res;
+    },
+    err => {
+      timer.cancel();
+      throw err;
+    }
+  );
+}
+
+/**
+ * Represents the timed, eventual completion (or failure) of an
+ * asynchronous operation, and its resulting value.
+ *
+ * In contrast to a regular Promise, it times out after ``timeout``.
+ *
+ * @param {Condition} func
+ *     Function to run, which will have its ``reject``
+ *     callback invoked after the ``timeout`` duration is reached.
+ *     It is given two callbacks: ``resolve(value)`` and
+ *     ``reject(error)``.
+ * @param {Object=} options
+ * @param {String} [options.errorMessage]
+ *     Message to use for the thrown error.
+ * @param {number=} options.timeout
+ *     ``condition``'s ``reject`` callback will be called
+ *     after this timeout, given in milliseconds.
+ *     By default 1500 ms in an optimised build and 4500 ms in
+ *     debug builds.
+ * @param {Error=} [options.throws=TimeoutError]
+ *     When the ``timeout`` is hit, this error class will be
+ *     thrown.  If it is null, no error is thrown and the promise is
+ *     instead resolved on timeout.
+ *
+ * @return {Promise.<*>}
+ *     Timed promise.
+ *
+ * @throws {TypeError}
+ *     If `timeout` is not a number.
+ * @throws {RangeError}
+ *     If `timeout` is not an unsigned integer.
+ */
+export function TimedPromise(fn, options = {}) {
+  const {
+    errorMessage = "TimedPromise timed out",
+    timeout = PROMISE_TIMEOUT,
+    throws = lazy.error.TimeoutError,
+  } = options;
+
+  const timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+
+  if (typeof fn != "function") {
+    throw new TypeError();
+  }
+  if (typeof timeout != "number") {
+    throw new TypeError();
+  }
+  if (!Number.isInteger(timeout) || timeout < 0) {
+    throw new RangeError();
+  }
+
+  return new Promise((resolve, reject) => {
+    let trace;
+
+    // Reject only if |throws| is given.  Otherwise it is assumed that
+    // the user is OK with the promise timing out.
+    let bail = () => {
+      if (throws !== null) {
+        let err = new throws(`${errorMessage} after ${timeout} ms`);
+        reject(err);
+      } else {
+        lazy.logger.warn(`${errorMessage} after ${timeout} ms`, trace);
+        resolve();
+      }
+    };
+
+    trace = lazy.error.stack();
+    timer.initWithCallback({ notify: bail }, timeout, TYPE_ONE_SHOT);
+
+    try {
+      fn(resolve, reject);
+    } catch (e) {
+      reject(e);
+    }
+  }).then(
+    res => {
+      timer.cancel();
+      return res;
+    },
+    err => {
+      timer.cancel();
+      throw err;
+    }
+  );
+}
+
+/**
+ * Pauses for the given duration.
+ *
+ * @param {number} timeout
+ *     Duration to wait before fulfilling promise in milliseconds.
+ *
+ * @return {Promise}
+ *     Promise that fulfills when the `timeout` is elapsed.
+ *
+ * @throws {TypeError}
+ *     If `timeout` is not a number.
+ * @throws {RangeError}
+ *     If `timeout` is not an unsigned integer.
+ */
+export function Sleep(timeout) {
+  if (typeof timeout != "number") {
+    throw new TypeError();
+  }
+  if (!Number.isInteger(timeout) || timeout < 0) {
+    throw new RangeError();
+  }
+
+  return new Promise(resolve => {
+    const timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+    timer.init(
+      () => {
+        // Bug 1663880 - Explicitely cancel the timer for now to prevent a hang
+        timer.cancel();
+        resolve();
+      },
+      timeout,
+      TYPE_ONE_SHOT
+    );
+  });
+}
+
+/**
+ * Detects when the specified message manager has been destroyed.
+ *
+ * One can observe the removal and detachment of a content browser
+ * (`<xul:browser>`) or a chrome window by its message manager
+ * disconnecting.
+ *
+ * When a browser is associated with a tab, this is safer than only
+ * relying on the event `TabClose` which signalises the _intent to_
+ * remove a tab and consequently would lead to the destruction of
+ * the content browser and its browser message manager.
+ *
+ * When closing a chrome window it is safer than only relying on
+ * the event 'unload' which signalises the _intent to_ close the
+ * chrome window and consequently would lead to the destruction of
+ * the window and its window message manager.
+ *
+ * @param {MessageListenerManager} messageManager
+ *     The message manager to observe for its disconnect state.
+ *     Use the browser message manager when closing a content browser,
+ *     and the window message manager when closing a chrome window.
+ *
+ * @return {Promise}
+ *     A promise that resolves when the message manager has been destroyed.
+ */
+export function MessageManagerDestroyedPromise(messageManager) {
+  return new Promise(resolve => {
+    function observe(subject, topic) {
+      lazy.logger.trace(`Received observer notification ${topic}`);
+
+      if (subject == messageManager) {
+        Services.obs.removeObserver(this, "message-manager-disconnect");
+        resolve();
+      }
+    }
+
+    Services.obs.addObserver(observe, "message-manager-disconnect");
+  });
+}
+
+/**
+ * Throttle until the main thread is idle and `window` has performed
+ * an animation frame (in that order).
+ *
+ * @param {ChromeWindow} win
+ *     Window to request the animation frame from.
+ *
+ * @return Promise
+ */
+export function IdlePromise(win) {
+  const animationFramePromise = new Promise(resolve => {
+    executeSoon(() => {
+      win.requestAnimationFrame(resolve);
+    });
+  });
+
+  // Abort if the underlying window gets closed
+  const windowClosedPromise = new PollPromise(resolve => {
+    if (win.closed) {
+      resolve();
+    }
+  });
+
+  return Promise.race([animationFramePromise, windowClosedPromise]);
+}
+
+/**
+ * Wraps a callback function, that, as long as it continues to be
+ * invoked, will not be triggered.  The given function will be
+ * called after the timeout duration is reached, after no more
+ * events fire.
+ *
+ * This class implements the {@link EventListener} interface,
+ * which means it can be used interchangably with `addEventHandler`.
+ *
+ * Debouncing events can be useful when dealing with e.g. DOM events
+ * that fire at a high rate.  It is generally advisable to avoid
+ * computationally expensive operations such as DOM modifications
+ * under these circumstances.
+ *
+ * One such high frequenecy event is `resize` that can fire multiple
+ * times before the window reaches its final dimensions.  In order
+ * to delay an operation until the window has completed resizing,
+ * it is possible to use this technique to only invoke the callback
+ * after the last event has fired::
+ *
+ *     let cb = new DebounceCallback(event => {
+ *       // fires after the final resize event
+ *       console.log("resize", event);
+ *     });
+ *     window.addEventListener("resize", cb);
+ *
+ * Note that it is not possible to use this synchronisation primitive
+ * with `addEventListener(..., {once: true})`.
+ *
+ * @param {function(Event)} fn
+ *     Callback function that is guaranteed to be invoked once only,
+ *     after `timeout`.
+ * @param {number=} [timeout = 250] timeout
+ *     Time since last event firing, before `fn` will be invoked.
+ */
+export class DebounceCallback {
+  constructor(fn, { timeout = 250 } = {}) {
+    if (typeof fn != "function" || typeof timeout != "number") {
+      throw new TypeError();
+    }
+    if (!Number.isInteger(timeout) || timeout < 0) {
+      throw new RangeError();
+    }
+
+    this.fn = fn;
+    this.timeout = timeout;
+    this.timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+  }
+
+  handleEvent(ev) {
+    this.timer.cancel();
+    this.timer.initWithCallback(
+      () => {
+        this.timer.cancel();
+        this.fn(ev);
+      },
+      this.timeout,
+      TYPE_ONE_SHOT
+    );
+  }
+}
+
+/**
+ * Wait for a message to be fired from a particular message manager.
+ *
+ * This method has been duplicated from BrowserTestUtils.sys.mjs.
+ *
+ * @param {nsIMessageManager} messageManager
+ *     The message manager that should be used.
+ * @param {string} messageName
+ *     The message to wait for.
+ * @param {Object=} options
+ *     Extra options.
+ * @param {function(Message)=} options.checkFn
+ *     Called with the ``Message`` object as argument, should return ``true``
+ *     if the message is the expected one, or ``false`` if it should be
+ *     ignored and listening should continue. If not specified, the first
+ *     message with the specified name resolves the returned promise.
+ *
+ * @return {Promise.<Object>}
+ *     Promise which resolves to the data property of the received
+ *     ``Message``.
+ */
+export function waitForMessage(
+  messageManager,
+  messageName,
+  { checkFn = undefined } = {}
+) {
+  if (messageManager == null || !("addMessageListener" in messageManager)) {
+    throw new TypeError();
+  }
+  if (typeof messageName != "string") {
+    throw new TypeError();
+  }
+  if (checkFn && typeof checkFn != "function") {
+    throw new TypeError();
+  }
+
+  return new Promise(resolve => {
+    messageManager.addMessageListener(messageName, function onMessage(msg) {
+      lazy.logger.trace(`Received ${messageName} for ${msg.target}`);
+      if (checkFn && !checkFn(msg)) {
+        return;
+      }
+      messageManager.removeMessageListener(messageName, onMessage);
+      resolve(msg.data);
+    });
+  });
+}
+
+/**
+ * Wait for the specified observer topic to be observed.
+ *
+ * This method has been duplicated from TestUtils.sys.mjs.
+ *
+ * Because this function is intended for testing, any error in checkFn
+ * will cause the returned promise to be rejected instead of waiting for
+ * the next notification, since this is probably a bug in the test.
+ *
+ * @param {string} topic
+ *     The topic to observe.
+ * @param {Object=} options
+ *     Extra options.
+ * @param {function(String,Object)=} options.checkFn
+ *     Called with ``subject``, and ``data`` as arguments, should return true
+ *     if the notification is the expected one, or false if it should be
+ *     ignored and listening should continue. If not specified, the first
+ *     notification for the specified topic resolves the returned promise.
+ *
+ * @return {Promise.<Array<String, Object>>}
+ *     Promise which resolves to an array of ``subject``, and ``data`` from
+ *     the observed notification.
+ */
+export function waitForObserverTopic(topic, { checkFn = null } = {}) {
+  if (typeof topic != "string") {
+    throw new TypeError();
+  }
+  if (checkFn != null && typeof checkFn != "function") {
+    throw new TypeError();
+  }
+
+  return new Promise((resolve, reject) => {
+    Services.obs.addObserver(function observer(subject, topic, data) {
+      lazy.logger.trace(`Received observer notification ${topic}`);
+      try {
+        if (checkFn && !checkFn(subject, data)) {
+          return;
+        }
+        Services.obs.removeObserver(observer, topic);
+        resolve({ subject, data });
+      } catch (ex) {
+        Services.obs.removeObserver(observer, topic);
+        reject(ex);
+      }
+    }, topic);
+  });
+}