Remove app_remoting.

remoting/webapp/app_remoting/js/context_menu_dom.js

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/**
- * @fileoverview
- * Provide an alternative location for the application's context menu items
- * on platforms that don't provide it.
- *
- * To mimic the behaviour of an OS-provided context menu, the menu is dismissed
- * in three situations:
- *
- * 1. When the window loses focus (i.e, the user has clicked on another window
- *    or on the desktop).
- * 2. When the user selects an option from the menu.
- * 3. When the user clicks on another part of the same window; this is achieved
- *    using an invisible screen element behind the menu, but in front of all
- *    other DOM.
- *
- * TODO(jamiewalch): Fold this functionality into remoting.MenuButton.
- */
-'use strict';
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-/**
- * @constructor
- * @implements {remoting.WindowShape.ClientUI}
- * @implements {remoting.ContextMenuAdapter}
- * @param {HTMLElement} root The root of the context menu DOM.
- * @param {remoting.WindowShape} windowShape
- */
-remoting.ContextMenuDom = function(root, windowShape) {
-  /** @private {HTMLElement} */
-  this.root_ = root;
-  /** @private {HTMLElement} */
-  this.stub_ = /** @type {HTMLElement} */
-      (this.root_.querySelector('.context-menu-stub'));
-  /** @private {HTMLElement} */
-  this.icon_ = /** @type {HTMLElement} */
-      (this.root_.querySelector('.context-menu-icon'));
-  /** @private {HTMLElement} */
-  this.screen_ = /** @type {HTMLElement} */
-      (this.root_.querySelector('.context-menu-screen'));
-  /** @private {HTMLElement} */
-  this.menu_ = /** @type {HTMLElement} */ (this.root_.querySelector('ul'));
-  /** @private {number} */
-  this.bottom_ = 8;
-  /** @private {base.EventSourceImpl} */
-  this.eventSource_ = new base.EventSourceImpl();
-  /** @private {string} */
-  this.eventName_ = '_click';
-  /**
-   * Since the same element is used to lock the icon open and to drag it, we
-   * must keep track of drag events so that the corresponding click event can
-   * be ignored.
-   *
-   * @private {boolean}
-   */
-  this.stubDragged_ = false;
-
-  /** @private */
-  this.windowShape_ = windowShape;
-
-  /**
-   * @private
-   */
-  this.dragAndDrop_ = new remoting.DragAndDrop(
-      this.stub_, this.onDragUpdate_.bind(this));
-
-  this.eventSource_.defineEvents([this.eventName_]);
-  this.root_.addEventListener(
-      'transitionend', this.onTransitionEnd_.bind(this), false);
-  this.stub_.addEventListener('click', this.onStubClick_.bind(this), false);
-  this.icon_.addEventListener('click', this.onIconClick_.bind(this), false);
-  this.screen_.addEventListener('click', this.onIconClick_.bind(this), false);
-
-  this.root_.hidden = false;
-  this.root_.style.bottom = this.bottom_ + 'px';
-  this.windowShape_.registerClientUI(this);
-};
-
-remoting.ContextMenuDom.prototype.dispose = function() {
-  this.windowShape_.unregisterClientUI(this);
-};
-
-/**
- * @param {Array<{left: number, top: number, width: number, height: number}>}
- *     rects List of rectangles.
- */
-remoting.ContextMenuDom.prototype.addToRegion = function(rects) {
-  var rect = /** @type {ClientRect} */ (this.root_.getBoundingClientRect());
-  // Clip the menu position to the main window in case the screen size has
-  // changed or a recent drag event tried to move it out of bounds.
-  if (rect.top < 0) {
-    this.bottom_ += rect.top;
-    this.root_.style.bottom = this.bottom_ + 'px';
-    rect = this.root_.getBoundingClientRect();
-  }
-
-  rects.push(rect);
-  if (this.root_.classList.contains('menu-opened')) {
-    var menuRect = this.menu_.getBoundingClientRect();
-    rects.push(menuRect);
-  }
-};
-
-/**
- * @param {string} id An identifier for the menu entry.
- * @param {string} title The text to display in the menu.
- * @param {boolean} isCheckable True if the state of this menu entry should
- *     have a check-box and manage its toggle state automatically. Note that
- *     checkable menu entries always start off unchecked.
- * @param {string=} opt_parentId The id of the parent menu item for submenus.
- */
-remoting.ContextMenuDom.prototype.create = function(
-    id, title, isCheckable, opt_parentId) {
-  var menuEntry = /** @type {HTMLElement} */ (document.createElement('li'));
-  menuEntry.innerText = title;
-  menuEntry.setAttribute('data-id', id);
-  if (isCheckable) {
-    menuEntry.setAttribute('data-checkable', true);
-  }
-  menuEntry.addEventListener('click', this.onClick_.bind(this), false);
-  /** @type {Node} */
-  var insertBefore = null;
-  if (opt_parentId) {
-    var parent = /** @type {HTMLElement} */
-        (this.menu_.querySelector('[data-id="' + opt_parentId + '"]'));
-    console.assert(
-        parent != null,
-        'No parent match for [data-id="' + /** @type {string} */(opt_parentId) +
-        '"] in create().');
-    console.assert(!parent.classList.contains('menu-group-item'),
-                   'Nested sub-menus are not supported.');
-    parent.classList.add('menu-group-header');
-    menuEntry.classList.add('menu-group-item');
-    insertBefore = this.getInsertionPointForParent(
-        /** @type {string} */(opt_parentId));
-  }
-  this.menu_.insertBefore(menuEntry, insertBefore);
-};
-
-/**
- * @param {string} id
- * @param {string} title
- */
-remoting.ContextMenuDom.prototype.updateTitle = function(id, title) {
-  var node = this.menu_.querySelector('[data-id="' + id + '"]');
-  if (node) {
-    node.innerText = title;
-  }
-};
-
-/**
- * @param {string} id
- * @param {boolean} checked
- */
-remoting.ContextMenuDom.prototype.updateCheckState = function(id, checked) {
-  var node = /** @type {HTMLElement} */
-      (this.menu_.querySelector('[data-id="' + id + '"]'));
-  if (node) {
-    if (checked) {
-      node.classList.add('selected');
-    } else {
-      node.classList.remove('selected');
-    }
-  }
-};
-
-/**
- * @param {string} id
- */
-remoting.ContextMenuDom.prototype.remove = function(id) {
-  var node = this.menu_.querySelector('[data-id="' + id + '"]');
-  if (node) {
-    this.menu_.removeChild(node);
-  }
-};
-
-/**
- * @param {function(OnClickData=):void} listener
- */
-remoting.ContextMenuDom.prototype.addListener = function(listener) {
-  this.eventSource_.addEventListener(this.eventName_, listener);
-};
-
-/**
- * @param {Event} event
- * @private
- */
-remoting.ContextMenuDom.prototype.onClick_ = function(event) {
-  var element = /** @type {HTMLElement} */ (event.target);
-  if (element.getAttribute('data-checkable')) {
-    element.classList.toggle('selected')
-  }
-  var clickData = {
-    menuItemId: element.getAttribute('data-id'),
-    checked: element.classList.contains('selected')
-  };
-  this.eventSource_.raiseEvent(this.eventName_, clickData);
-  this.onIconClick_();
-};
-
-/**
- * Get the insertion point for the specified sub-menu. This is the menu item
- * immediately following the last child of that menu group, or null if there
- * are no menu items after that group.
- *
- * @param {string} parentId
- * @return {Node?}
- */
-remoting.ContextMenuDom.prototype.getInsertionPointForParent = function(
-    parentId) {
-  var parentNode = this.menu_.querySelector('[data-id="' + parentId + '"]');
-  console.assert(parentNode != null,
-                 'No parent match for [data-id="' + parentId +
-                 '"] in getInsertionPointForParent().');
-  var childNode = /** @type {HTMLElement} */ (parentNode.nextSibling);
-  while (childNode != null && childNode.classList.contains('menu-group-item')) {
-    childNode = childNode.nextSibling;
-  }
-  return childNode;
-};
-
-/**
- * Called when the CSS show/hide transition completes. Since this changes the
- * visible dimensions of the context menu, the visible region of the window
- * needs to be recomputed.
- *
- * @private
- */
-remoting.ContextMenuDom.prototype.onTransitionEnd_ = function() {
-  this.windowShape_.updateClientWindowShape();
-};
-
-/**
- * Toggle the visibility of the context menu icon.
- *
- * @private
- */
-remoting.ContextMenuDom.prototype.onStubClick_ = function() {
-  if (this.stubDragged_) {
-    this.stubDragged_ = false;
-    return;
-  }
-  this.root_.classList.toggle('opened');
-};
-
-/**
- * Toggle the visibility of the context menu.
- *
- * @private
- */
-remoting.ContextMenuDom.prototype.onIconClick_ = function() {
-  this.showMenu_(!this.menu_.classList.contains('opened'));
-};
-
-/**
- * Explicitly show or hide the context menu.
- *
- * @param {boolean} show True to show the menu; false to hide it.
- * @private
- */
-remoting.ContextMenuDom.prototype.showMenu_ = function(show) {
-  if (show) {
-    // Ensure that the menu doesn't extend off the top or bottom of the
-    // screen by aligning it to the top or bottom of the icon, depending
-    // on the latter's vertical position.
-    var menuRect =
-        /** @type {ClientRect} */ (this.menu_.getBoundingClientRect());
-    if (menuRect.bottom > window.innerHeight) {
-      this.menu_.classList.add('menu-align-bottom');
-    } else {
-      this.menu_.classList.remove('menu-align-bottom');
-    }
-
-    /** @type {remoting.ContextMenuDom} */
-    var that = this;
-    var onBlur = function() {
-      that.showMenu_(false);
-      window.removeEventListener('blur', onBlur, false);
-    };
-    window.addEventListener('blur', onBlur, false);
-
-    // Show the menu and prevent the icon from auto-hiding on mouse-out.
-    this.menu_.classList.add('opened');
-    this.root_.classList.add('menu-opened');
-
-  } else {  // if (!show)
-    this.menu_.classList.remove('opened');
-    this.root_.classList.remove('menu-opened');
-  }
-
-  this.screen_.hidden = !show;
-  this.windowShape_.updateClientWindowShape();
-};
-
-/**
- * @param {number} deltaX
- * @param {number} deltaY
- * @private
- */
-remoting.ContextMenuDom.prototype.onDragUpdate_ = function(deltaX, deltaY) {
-  this.stubDragged_ = true;
-  this.bottom_ -= deltaY;
-  this.root_.style.bottom = this.bottom_ + 'px';
-  // Deferring the window shape update until the DOM update has completed
-  // helps keep the position of the context menu consistent with the window
-  // shape (though it's still not perfect).
-  window.requestAnimationFrame(
-      this.windowShape_.updateClientWindowShape.bind(this.windowShape_));
-};