Remove enhanced bookmarks extension

chrome/browser/resources/enhanced_bookmark_manager/js/bmm.js

-// Copyright 2013 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.
-
-cr.define('bmm', function() {
-  var Promise = cr.Promise;
-
-  /**
-   * Whether a node contains another node.
-   * TODO(yosin): Once JavaScript style guide is updated and linter follows
-   * that, we'll remove useless documentations for |parent| and |descendant|.
-   * TODO(yosin): bmm.contains() should be method of BookmarkTreeNode.
-   * @param {!BookmarkTreeNode} parent .
-   * @param {!BookmarkTreeNode} descendant .
-   * @return {boolean} Whether the parent contains the descendant.
-   */
-  function contains(parent, descendant) {
-    if (descendant.parentId == parent.id)
-      return true;
-    // the bmm.treeLookup contains all folders
-    var parentTreeItem = bmm.treeLookup[descendant.parentId];
-    if (!parentTreeItem || !parentTreeItem.bookmarkNode)
-      return false;
-    return this.contains(parent, parentTreeItem.bookmarkNode);
-  }
-
-  /**
-   * @param {!BookmarkTreeNode} node The node to test.
-   * @return {boolean} Whether a bookmark node is a folder.
-   */
-  function isFolder(node) {
-    return !('url' in node);
-  }
-
-  var loadingPromises = {};
-
-  /**
-   * Loads a subtree of the bookmark tree and returns a {@code cr.Promise} that
-   * will be fulfilled when done. This reuses multiple loads so that we do not
-   * load the same subtree more than once at the same time.
-   * @return {!cr.Promise} The future promise for the load.
-   */
-  function loadSubtree(id) {
-    var p = new Promise;
-    if (!(id in loadingPromises)) {
-      loadingPromises[id] = new Promise;
-      loadingPromises[id].addListener(function(n) {
-        p.value = n;
-      });
-      chrome.bookmarkManagerPrivate.getSubtree(id, false, function(nodes) {
-        loadingPromises[id].value = nodes && nodes[0];
-        delete loadingPromises[id];
-      });
-    } else {
-      loadingPromises[id].addListener(function(n) {
-        p.value = n;
-      });
-    }
-    return p;
-  }
-
-  /**
-   * Loads the entire bookmark tree and returns a {@code cr.Promise} that will
-   * be fulfilled when done. This reuses multiple loads so that we do not load
-   * the same tree more than once at the same time.
-   * @return {!cr.Promise} The future promise for the load.
-   */
-  function loadTree() {
-    return loadSubtree('');
-  }
-
-  var bookmarkCache = {
-    /**
-     * Removes the cached item from both the list and tree lookups.
-     */
-    remove: function(id) {
-      var treeItem = bmm.treeLookup[id];
-      if (treeItem) {
-        var items = treeItem.items; // is an HTMLCollection
-        for (var i = 0; i < items.length; ++i) {
-          var item = items[i];
-          var bookmarkNode = item.bookmarkNode;
-          delete bmm.treeLookup[bookmarkNode.id];
-        }
-        delete bmm.treeLookup[id];
-      }
-    },
-
-    /**
-     * Updates the underlying bookmark node for the tree items and list items by
-     * querying the bookmark backend.
-     * @param {string} id The id of the node to update the children for.
-     * @param {Function=} opt_f A funciton to call when done.
-     */
-    updateChildren: function(id, opt_f) {
-      function updateItem(bookmarkNode) {
-        var treeItem = bmm.treeLookup[bookmarkNode.id];
-        if (treeItem) {
-          treeItem.bookmarkNode = bookmarkNode;
-        }
-      }
-
-      chrome.bookmarks.getChildren(id, function(children) {
-        if (children)
-          children.forEach(updateItem);
-
-        if (opt_f)
-          opt_f(children);
-      });
-    }
-  };
-
-  /**
-   * Called when the title of a bookmark changes.
-   * @param {string} id The id of changed bookmark node.
-   * @param {!Object} changeInfo The information about how the node changed.
-   */
-  function handleBookmarkChanged(id, changeInfo) {
-    if (bmm.tree)
-      bmm.tree.handleBookmarkChanged(id, changeInfo);
-    if (bmm.list)
-      bmm.list.handleBookmarkChanged(id, changeInfo);
-  }
-
-  /**
-   * Callback for when the user reorders by title.
-   * @param {string} id The id of the bookmark folder that was reordered.
-   * @param {!Object} reorderInfo The information about how the items where
-   *     reordered.
-   */
-  function handleChildrenReordered(id, reorderInfo) {
-    if (bmm.tree)
-      bmm.tree.handleChildrenReordered(id, reorderInfo);
-    if (bmm.list)
-      bmm.list.handleChildrenReordered(id, reorderInfo);
-    bookmarkCache.updateChildren(id);
-  }
-
-  /**
-   * Callback for when a bookmark node is created.
-   * @param {string} id The id of the newly created bookmark node.
-   * @param {!Object} bookmarkNode The new bookmark node.
-   */
-  function handleCreated(id, bookmarkNode) {
-    if (bmm.list)
-      bmm.list.handleCreated(id, bookmarkNode);
-    if (bmm.tree)
-      bmm.tree.handleCreated(id, bookmarkNode);
-    bookmarkCache.updateChildren(bookmarkNode.parentId);
-  }
-
-  /**
-   * Callback for when a bookmark node is moved.
-   * @param {string} id The id of the moved bookmark node.
-   * @param {!Object} moveInfo The information about move.
-   */
-  function handleMoved(id, moveInfo) {
-    if (bmm.list)
-      bmm.list.handleMoved(id, moveInfo);
-    if (bmm.tree)
-      bmm.tree.handleMoved(id, moveInfo);
-
-    bookmarkCache.updateChildren(moveInfo.parentId);
-    if (moveInfo.parentId != moveInfo.oldParentId)
-      bookmarkCache.updateChildren(moveInfo.oldParentId);
-  }
-
-  /**
-   * Callback for when a bookmark node is removed.
-   * @param {string} id The id of the removed bookmark node.
-   * @param {!Object} bookmarkNode The information about removed.
-   */
-  function handleRemoved(id, removeInfo) {
-    if (bmm.list)
-      bmm.list.handleRemoved(id, removeInfo);
-    if (bmm.tree)
-      bmm.tree.handleRemoved(id, removeInfo);
-
-    bookmarkCache.updateChildren(removeInfo.parentId);
-    bookmarkCache.remove(id);
-  }
-
-  /**
-   * Callback for when all bookmark nodes have been deleted.
-   */
-  function handleRemoveAll() {
-    // Reload the list and the tree.
-    if (bmm.list)
-      bmm.list.reload();
-    if (bmm.tree)
-      bmm.tree.reload();
-  }
-
-  /**
-   * Callback for when importing bookmark is started.
-   */
-  function handleImportBegan() {
-    chrome.bookmarks.onCreated.removeListener(handleCreated);
-    chrome.bookmarks.onChanged.removeListener(handleBookmarkChanged);
-  }
-
-  /**
-   * Callback for when importing bookmark node is finished.
-   */
-  function handleImportEnded() {
-    // When importing is done we reload the tree and the list.
-
-    function f() {
-      bmm.tree.removeEventListener('load', f);
-
-      chrome.bookmarks.onCreated.addListener(handleCreated);
-      chrome.bookmarks.onChanged.addListener(handleBookmarkChanged);
-
-      if (!bmm.list)
-        return;
-
-      // TODO(estade): this should navigate to the newly imported folder, which
-      // may be the bookmark bar if there were no previous bookmarks.
-      bmm.list.reload();
-    }
-
-    if (bmm.tree) {
-      bmm.tree.addEventListener('load', f);
-      bmm.tree.reload();
-    }
-  }
-
-  /**
-   * Adds the listeners for the bookmark model change events.
-   */
-  function addBookmarkModelListeners() {
-    chrome.bookmarks.onChanged.addListener(handleBookmarkChanged);
-    chrome.bookmarks.onChildrenReordered.addListener(handleChildrenReordered);
-    chrome.bookmarks.onCreated.addListener(handleCreated);
-    chrome.bookmarks.onMoved.addListener(handleMoved);
-    chrome.bookmarks.onRemoved.addListener(handleRemoved);
-    chrome.bookmarks.onImportBegan.addListener(handleImportBegan);
-    chrome.bookmarks.onImportEnded.addListener(handleImportEnded);
-  };
-
-  return {
-    contains: contains,
-    isFolder: isFolder,
-    loadSubtree: loadSubtree,
-    loadTree: loadTree,
-    addBookmarkModelListeners: addBookmarkModelListeners
-  };
-});