1 files changed, 312 insertions, 0 deletions
diff --git a/remote/marionette/event.sys.mjs b/remote/marionette/event.sys.mjs
new file mode 100644
index 0000000000..731076d09d
--- /dev/null
+++ b/remote/marionette/event.sys.mjs
@@ -0,0 +1,312 @@
+/* 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/. */
+
+/* eslint-disable no-restricted-globals */
+
+import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  keyData: "chrome://remote/content/shared/webdriver/KeyData.sys.mjs",
+});
+
+/** Provides functionality for creating and sending DOM events. */
+export const event = {};
+
+XPCOMUtils.defineLazyGetter(lazy, "dblclickTimer", () => {
+  return Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+});
+
+const _eventUtils = new WeakMap();
+
+function _getEventUtils(win) {
+  if (!_eventUtils.has(win)) {
+    const eventUtilsObject = {
+      window: win,
+      parent: win,
+      _EU_Ci: Ci,
+      _EU_Cc: Cc,
+    };
+    Services.scriptloader.loadSubScript(
+      "chrome://remote/content/external/EventUtils.js",
+      eventUtilsObject
+    );
+    _eventUtils.set(win, eventUtilsObject);
+  }
+  return _eventUtils.get(win);
+}
+
+//  Max interval between two clicks that should result in a dblclick (in ms)
+const DBLCLICK_INTERVAL = 640;
+
+event.MouseEvents = {
+  click: 0,
+  dblclick: 1,
+  mousedown: 2,
+  mouseup: 3,
+  mouseover: 4,
+  mouseout: 5,
+};
+
+event.Modifiers = {
+  shiftKey: 0,
+  ctrlKey: 1,
+  altKey: 2,
+  metaKey: 3,
+};
+
+event.MouseButton = {
+  isPrimary(button) {
+    return button === 0;
+  },
+  isAuxiliary(button) {
+    return button === 1;
+  },
+  isSecondary(button) {
+    return button === 2;
+  },
+};
+
+event.DoubleClickTracker = {
+  firstClick: false,
+  isClicked() {
+    return event.DoubleClickTracker.firstClick;
+  },
+  setClick() {
+    if (!event.DoubleClickTracker.firstClick) {
+      event.DoubleClickTracker.firstClick = true;
+      event.DoubleClickTracker.startTimer();
+    }
+  },
+  resetClick() {
+    event.DoubleClickTracker.firstClick = false;
+    event.DoubleClickTracker.cancelTimer();
+  },
+  startTimer() {
+    lazy.dblclickTimer.initWithCallback(
+      event.DoubleClickTracker.resetClick,
+      DBLCLICK_INTERVAL,
+      Ci.nsITimer.TYPE_ONE_SHOT
+    );
+  },
+  cancelTimer() {
+    lazy.dblclickTimer.cancel();
+  },
+};
+
+// Only used by legacyactions.js
+event.parseModifiers_ = function(modifiers, win) {
+  return _getEventUtils(win)._parseModifiers(modifiers);
+};
+
+/**
+ * Synthesise a mouse event at a point.
+ *
+ * If the type is specified in opts, an mouse event of that type is
+ * fired. Otherwise, a mousedown followed by a mouseup is performed.
+ *
+ * @param {number} left
+ *     Offset from viewport left, in CSS pixels
+ * @param {number} top
+ *     Offset from viewport top, in CSS pixels
+ * @param {Object} opts
+ *     Object which may contain the properties "shiftKey", "ctrlKey",
+ *     "altKey", "metaKey", "accessKey", "clickCount", "button", and
+ *     "type".
+ * @param {Window} win
+ *     Window object.
+ *
+ * @return {boolean} defaultPrevented
+ */
+event.synthesizeMouseAtPoint = function(left, top, opts, win) {
+  return _getEventUtils(win).synthesizeMouseAtPoint(left, top, opts, win);
+};
+
+/**
+ * Synthesise a touch event at a point.
+ *
+ * If the type is specified in opts, a touch event of that type is
+ * fired. Otherwise, a touchstart followed by a touchend is performed.
+ *
+ * @param {number} left
+ *     Offset from viewport left, in CSS pixels
+ * @param {number} top
+ *     Offset from viewport top, in CSS pixels
+ * @param {Object} opts
+ *     Object which may contain the properties "id", "rx", "ry", "angle",
+ *     "force", "shiftKey", "ctrlKey", "altKey", "metaKey", "accessKey",
+ *     "type".
+ * @param {Window} win
+ *     Window object.
+ *
+ * @return {boolean} defaultPrevented
+ */
+event.synthesizeTouchAtPoint = function(left, top, opts, win) {
+  return _getEventUtils(win).synthesizeTouchAtPoint(left, top, opts, win);
+};
+
+/**
+ * Synthesise a wheel scroll event at a point.
+ *
+ * @param {number} left
+ *     Offset from viewport left, in CSS pixels
+ * @param {number} top
+ *     Offset from viewport top, in CSS pixels
+ * @param {Object} opts
+ *     Object which may contain the properties "shiftKey", "ctrlKey",
+ *     "altKey", "metaKey", "accessKey", "deltaX", "deltaY", "deltaZ",
+ *     "deltaMode", "lineOrPageDeltaX", "lineOrPageDeltaY", "isMomentum",
+ *     "isNoLineOrPageDelta", "isCustomizedByPrefs", "expectedOverflowDeltaX",
+ *     "expectedOverflowDeltaY"
+ * @param {Window} win
+ *     Window object.
+ */
+event.synthesizeWheelAtPoint = function(left, top, opts, win) {
+  return _getEventUtils(win).synthesizeWheelAtPoint(left, top, opts, win);
+};
+
+event.synthesizeMultiTouch = function(opts, win) {
+  const modifiers = _getEventUtils(win)._parseModifiers(opts);
+  win.windowUtils.sendTouchEvent(
+    opts.type,
+    opts.id,
+    opts.x,
+    opts.y,
+    opts.rx,
+    opts.ry,
+    opts.angle,
+    opts.force,
+    opts.tiltx,
+    opts.tilty,
+    opts.twist,
+    modifiers
+  );
+};
+
+/**
+ * Synthesize a keydown event for a single key.
+ *
+ * @param {Object} key
+ *     Key data as returned by keyData.getData
+ * @param {Window} win
+ *     Window object.
+ */
+event.sendKeyDown = function(key, win) {
+  event.sendSingleKey(key, win, "keydown");
+};
+
+/**
+ * Synthesize a keyup event for a single key.
+ *
+ * @param {Object} key
+ *     Key data as returned by keyData.getData
+ * @param {Window} win
+ *     Window object.
+ */
+event.sendKeyUp = function(key, win) {
+  event.sendSingleKey(key, win, "keyup");
+};
+
+/**
+ * Synthesize a key event for a single key.
+ *
+ * @param {Object} key
+ *     Key data as returned by keyData.getData
+ * @param {Window} win
+ *     Window object.
+ * @param {string=} type
+ *     Event to emit. By default the full keydown/keypressed/keyup event
+ *     sequence is emitted.
+ */
+event.sendSingleKey = function(key, win, type = null) {
+  let keyValue = key.key;
+  if (!key.printable) {
+    keyValue = `KEY_${keyValue}`;
+  }
+  const event = {
+    code: key.code,
+    location: key.location,
+    altKey: key.altKey ?? false,
+    shiftKey: key.shiftKey ?? false,
+    ctrlKey: key.ctrlKey ?? false,
+    metaKey: key.metaKey ?? false,
+    repeat: key.repeat ?? false,
+  };
+  if (type) {
+    event.type = type;
+  }
+  _getEventUtils(win).synthesizeKey(keyValue, event, win);
+};
+
+/**
+ * Send a string as a series of keypresses.
+ *
+ * @param {string} keyString
+ *     Sequence of characters to send as key presses
+ * @param {Window} win
+ *     Window object
+ */
+event.sendKeys = function(keyString, win) {
+  const modifiers = {};
+  for (let modifier in event.Modifiers) {
+    modifiers[modifier] = false;
+  }
+
+  for (let i = 0; i < keyString.length; i++) {
+    let keyValue = keyString.charAt(i);
+    if (modifiers.shiftKey) {
+      keyValue = lazy.keyData.getShiftedKey(keyValue);
+    }
+    const data = lazy.keyData.getData(keyValue);
+    const key = { ...data, ...modifiers };
+    if (data.modifier) {
+      modifiers[data.modifier] = true;
+    }
+    event.sendSingleKey(key, win);
+  }
+};
+
+event.sendEvent = function(eventType, el, modifiers = {}, opts = {}) {
+  opts.canBubble = opts.canBubble || true;
+
+  let doc = el.ownerDocument || el.document;
+  let ev = doc.createEvent("Event");
+
+  ev.shiftKey = modifiers.shift;
+  ev.metaKey = modifiers.meta;
+  ev.altKey = modifiers.alt;
+  ev.ctrlKey = modifiers.ctrl;
+
+  ev.initEvent(eventType, opts.canBubble, true);
+  el.dispatchEvent(ev);
+};
+
+event.mouseover = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("mouseover", el, modifiers, opts);
+};
+
+event.mousemove = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("mousemove", el, modifiers, opts);
+};
+
+event.mousedown = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("mousedown", el, modifiers, opts);
+};
+
+event.mouseup = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("mouseup", el, modifiers, opts);
+};
+
+event.click = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("click", el, modifiers, opts);
+};
+
+event.change = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("change", el, modifiers, opts);
+};
+
+event.input = function(el, modifiers = {}, opts = {}) {
+  return event.sendEvent("input", el, modifiers, opts);
+};