utils.js

Here is utils.js.zip for linux web probrammer.

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Places Command Controller.
 *
 * The Initial Developer of the Original Code is Google Inc.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Ben Goodger <[e-mail]>
 *   Myk Melez <[e-mail]>
 *   Asaf Romano <[e-mail]>
 *   Sungjoon Steve Won <[e-mail]>
 *   Dietrich Ayala <[e-mail]>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

function LOG(str) {
  dump("*** " + str + "\n");
}

var EXPORTED_SYMBOLS = ["PlacesUtils"];

var Ci = Components.interfaces;
var Cc = Components.classes;
var Cr = Components.results;

const POST_DATA_ANNO = "bookmarkProperties/POSTData";
const READ_ONLY_ANNO = "placesInternal/READ_ONLY";
const LMANNO_FEEDURI = "livemark/feedURI";
const LMANNO_SITEURI = "livemark/siteURI";

//@line 62 "/home/orange/mozilla/toolkit/components/places/src/utils.js"
// On other platforms, the transferable system converts "\r\n" to "\n".
const NEWLINE = "\r\n";
//@line 65 "/home/orange/mozilla/toolkit/components/places/src/utils.js"

function QI_node(aNode, aIID) {
  var result = null;
  try {
    result = aNode.QueryInterface(aIID);
  }
  catch (e) {
  }
  return result;
}
function asVisit(aNode)    { return QI_node(aNode, Ci.nsINavHistoryVisitResultNode);    }
function asFullVisit(aNode){ return QI_node(aNode, Ci.nsINavHistoryFullVisitResultNode);}
function asContainer(aNode){ return QI_node(aNode, Ci.nsINavHistoryContainerResultNode);}
function asQuery(aNode)    { return QI_node(aNode, Ci.nsINavHistoryQueryResultNode);    }

var PlacesUtils = {
  // Place entries that are containers, e.g. bookmark folders or queries.
  TYPE_X_MOZ_PLACE_CONTAINER: "text/x-moz-place-container",
  // Place entries that are bookmark separators.
  TYPE_X_MOZ_PLACE_SEPARATOR: "text/x-moz-place-separator",
  // Place entries that are not containers or separators
  TYPE_X_MOZ_PLACE: "text/x-moz-place",
  // Place entries in shortcut url format (url\ntitle)
  TYPE_X_MOZ_URL: "text/x-moz-url",
  // Place entries formatted as HTML anchors
  TYPE_HTML: "text/html",
  // Place entries as raw URL text
  TYPE_UNICODE: "text/unicode",

  /**
   * The Bookmarks Service.
   */
  get bookmarks() {
    delete this.bookmarks;
    return this.bookmarks = Cc["@mozilla.org/browser/nav-bookmarks-service;1"].
                            getService(Ci.nsINavBookmarksService);
  },

  /**
   * The Nav History Service.
   */
  get history() {
    delete this.history;
    return this.history = Cc["@mozilla.org/browser/nav-history-service;1"].
                          getService(Ci.nsINavHistoryService);
  },

  /**
   * The Live Bookmark Service.
   */
  get livemarks() {
    delete this.livemarks;
    return this.livemarks = Cc["@mozilla.org/browser/livemark-service;2"].
                            getService(Ci.nsILivemarkService);
  },

  /**
   * The Annotations Service.
   */
  get annotations() {
    delete this.annotations;
    return this.annotations = Cc["@mozilla.org/browser/annotation-service;1"].
                              getService(Ci.nsIAnnotationService);
  },

  /**
   * The Favicons Service
   */
  get favicons() {
    delete this.favicons;
    return this.favicons = Cc["@mozilla.org/browser/favicon-service;1"].
                           getService(Ci.nsIFaviconService);
  },

  /**
   * The Places Tagging Service
   */
  get tagging() {
    delete this.tagging;
    return this.tagging = Cc["@mozilla.org/browser/tagging-service;1"].
                          getService(Ci.nsITaggingService);
  },

  /**
   * Makes a URI from a spec.
   * @param   aSpec
   *          The string spec of the URI
   * @returns A URI object for the spec.
   */
  _uri: function PU__uri(aSpec) {
    return Cc["@mozilla.org/network/io-service;1"].
           getService(Ci.nsIIOService).
           newURI(aSpec, null, null);
  },

  /**
   * String bundle helpers
   */
  get _bundle() {
    const PLACES_STRING_BUNDLE_URI =
        "chrome://places/locale/places.properties";
    delete this._bundle;
    return this._bundle = Cc["@mozilla.org/intl/stringbundle;1"].
                          getService(Ci.nsIStringBundleService).
                          createBundle(PLACES_STRING_BUNDLE_URI);
  },

  getFormattedString: function PU_getFormattedString(key, params) {
    return this._bundle.formatStringFromName(key, params, params.length);
  },

  getString: function PU_getString(key) {
    return this._bundle.GetStringFromName(key);
  },

  /**
   * Determines whether or not a ResultNode is a Bookmark folder.
   * @param   aNode
   *          A result node
   * @returns true if the node is a Bookmark folder, false otherwise
   */
  nodeIsFolder: function PU_nodeIsFolder(aNode) {
    return (aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER ||
            aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER_SHORTCUT);
  },

  /**
   * Determines whether or not a ResultNode represents a bookmarked URI.
   * @param   aNode
   *          A result node
   * @returns true if the node represents a bookmarked URI, false otherwise
   */
  nodeIsBookmark: function PU_nodeIsBookmark(aNode) {
    return aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_URI &&
           aNode.itemId != -1;
  },

  /**
   * Determines whether or not a ResultNode is a Bookmark separator.
   * @param   aNode
   *          A result node
   * @returns true if the node is a Bookmark separator, false otherwise
   */
  nodeIsSeparator: function PU_nodeIsSeparator(aNode) {

    return (aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_SEPARATOR);
  },

  /**
   * Determines whether or not a ResultNode is a visit item.
   * @param   aNode
   *          A result node
   * @returns true if the node is a visit item, false otherwise
   */
  nodeIsVisit: function PU_nodeIsVisit(aNode) {
    const NHRN = Ci.nsINavHistoryResultNode;
    var type = aNode.type;
    return type == NHRN.RESULT_TYPE_VISIT ||
           type == NHRN.RESULT_TYPE_FULL_VISIT;
  },

  /**
   * Determines whether or not a ResultNode is a URL item.
   * @param   aNode
   *          A result node
   * @returns true if the node is a URL item, false otherwise
   */
  uriTypes: [Ci.nsINavHistoryResultNode.RESULT_TYPE_URI,
             Ci.nsINavHistoryResultNode.RESULT_TYPE_VISIT,
             Ci.nsINavHistoryResultNode.RESULT_TYPE_FULL_VISIT],
  nodeIsURI: function PU_nodeIsURI(aNode) {
    return this.uriTypes.indexOf(aNode.type) != -1;
  },

  /**
   * Determines whether or not a ResultNode is a Query item.
   * @param   aNode
   *          A result node
   * @returns true if the node is a Query item, false otherwise
   */
  nodeIsQuery: function PU_nodeIsQuery(aNode) {
    return aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY;
  },

  /**
   * Determines if a node is read only (children cannot be inserted, sometimes
   * they cannot be removed depending on the circumstance)
   * @param   aNode
   *          A result node
   * @returns true if the node is readonly, false otherwise
   */
  nodeIsReadOnly: function PU_nodeIsReadOnly(aNode) {
    if (this.nodeIsFolder(aNode))
      return this.bookmarks.getFolderReadonly(asQuery(aNode).folderItemId);
    if (this.nodeIsQuery(aNode) &&
        asQuery(aNode).queryOptions.resultType !=
          Ci.nsINavHistoryQueryOptions.RESULTS_AS_TAG_CONTENTS)
      return aNode.childrenReadOnly;
    return false;
  },

  /**
   * Determines whether or not a ResultNode is a host container.
   * @param   aNode
   *          A result node
   * @returns true if the node is a host container, false otherwise
   */
  nodeIsHost: function PU_nodeIsHost(aNode) {
    return aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY &&
           aNode.parent &&
           asQuery(aNode.parent).queryOptions.resultType ==
             Ci.nsINavHistoryQueryOptions.RESULTS_AS_SITE_QUERY;
  },

  /**
   * Determines whether or not a ResultNode is a day container.
   * @param   node
   *          A NavHistoryResultNode
   * @returns true if the node is a day container, false otherwise
   */
  nodeIsDay: function PU_nodeIsDay(aNode) {
    var resultType;
    return aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY &&
           aNode.parent &&
           ((resultType = asQuery(aNode.parent).queryOptions.resultType) ==
               Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_QUERY ||
             resultType == Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_SITE_QUERY);
  },

  /**
   * Determines whether or not a result-node is a tag container.
   * @param   aNode
   *          A result-node
   * @returns true if the node is a tag container, false otherwise
   */
  nodeIsTagQuery: function PU_nodeIsTagQuery(aNode) {
    return aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY &&
           asQuery(aNode).queryOptions.resultType ==
             Ci.nsINavHistoryQueryOptions.RESULTS_AS_TAG_CONTENTS;
  },

  /**
   * Determines whether or not a ResultNode is a container.
   * @param   aNode
   *          A result node
   * @returns true if the node is a container item, false otherwise
   */
  containerTypes: [Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER,
                   Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER_SHORTCUT,
                   Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY,
                   Ci.nsINavHistoryResultNode.RESULT_TYPE_DYNAMIC_CONTAINER],
  nodeIsContainer: function PU_nodeIsContainer(aNode) {
    return this.containerTypes.indexOf(aNode.type) != -1;
  },

  /**
   * Determines whether or not a ResultNode is an history related container.
   * @param   node
   *          A result node
   * @returns true if the node is an history related container, false otherwise
   */
  nodeIsHistoryContainer: function PU_nodeIsHistoryContainer(aNode) {
    var resultType;
    return this.nodeIsQuery(aNode) &&
           ((resultType = asQuery(aNode).queryOptions.resultType) ==
              Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_SITE_QUERY ||
            resultType == Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_QUERY ||
            resultType == Ci.nsINavHistoryQueryOptions.RESULTS_AS_SITE_QUERY ||
            this.nodeIsDay(aNode) ||
            this.nodeIsHost(aNode));
  },

  /**
   * Determines whether or not a result-node is a dynamic-container item.
   * The dynamic container result node type is for dynamically created
   * containers (e.g. for the file browser service where you get your folders
   * in bookmark menus).
   * @param   aNode
   *          A result node
   * @returns true if the node is a dynamic container item, false otherwise
   */
  nodeIsDynamicContainer: function PU_nodeIsDynamicContainer(aNode) {
    if (aNode.type == NHRN.RESULT_TYPE_DYNAMIC_CONTAINER)
      return true;
    return false;
  },

 /**
  * Determines whether a result node is a remote container registered by the
  * livemark service.
  * @param aNode
  *        A result Node
  * @returns true if the node is a livemark container item
  */
  nodeIsLivemarkContainer: function PU_nodeIsLivemarkContainer(aNode) {
    // Use the annotations service directly to avoid instantiating
    // the Livemark service on startup. (bug 398300)
    return this.nodeIsFolder(aNode) &&
           this.annotations.itemHasAnnotation(aNode.itemId, LMANNO_FEEDURI);
  },

 /**
  * Determines whether a result node is a live-bookmark item
  * @param aNode
  *        A result node
  * @returns true if the node is a livemark container item
  */
  nodeIsLivemarkItem: function PU_nodeIsLivemarkItem(aNode) {
    return aNode.parent && this.nodeIsLivemarkContainer(aNode.parent);
  },

  /**
   * Determines whether or not a node is a readonly folder.
   * @param   aNode
   *          The node to test.
   * @returns true if the node is a readonly folder.
  */
  isReadonlyFolder: function(aNode) {
    return this.nodeIsFolder(aNode) &&
           this.bookmarks.getFolderReadonly(asQuery(aNode).folderItemId);
  },

  /**
   * Gets the concrete item-id for the given node. Generally, this is just
   * node.itemId, but for folder-shortcuts that's node.folderItemId.
   */
  getConcreteItemId: function PU_getConcreteItemId(aNode) {
    if (aNode.type == Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER_SHORTCUT)
      return asQuery(aNode).folderItemId;
    else if (PlacesUtils.nodeIsTagQuery(aNode)) {
      // RESULTS_AS_TAG_CONTENTS queries are similar to folder shortcuts
      // so we can still get the concrete itemId for them.
      var queries = aNode.getQueries({});
      var folders = queries[0].getFolders({});
      return folders[0];
    }
    return aNode.itemId;
  },

  /**
   * Gets the index of a node within its parent container
   * @param   aNode
   *          The node to look up
   * @returns The index of the node within its parent container, or -1 if the
   *          node was not found or the node specified has no parent.
   */
  getIndexOfNode: function PU_getIndexOfNode(aNode) {
    var parent = aNode.parent;