utils.js

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

    if (!parent)
      return -1;
    var wasOpen = parent.containerOpen;
    var result, oldViewer;
    if (!wasOpen) {
      result = parent.parentResult;
      oldViewer = result.viewer;
      result.viewer = null;
      parent.containerOpen = true;
    }
    var cc = parent.childCount;
    for (var i = 0; i < cc && parent.getChild(i) != aNode; ++i);
    if (!wasOpen) {
      parent.containerOpen = false;
      result.viewer = oldViewer;
    }
    return i < cc ? i : -1;
  },

  /**
   * String-wraps a result node according to the rules of the specified
   * content type.
   * @param   aNode
   *          The Result node to wrap (serialize)
   * @param   aType
   *          The content type to serialize as
   * @param   [optional] aOverrideURI
   *          Used instead of the node's URI if provided.
   *          This is useful for wrapping a container as TYPE_X_MOZ_URL,
   *          TYPE_HTML or TYPE_UNICODE.
   * @param   aForceCopy
   *          Does a full copy, resolving folder shortcuts.
   * @returns A string serialization of the node
   */
  wrapNode: function PU_wrapNode(aNode, aType, aOverrideURI, aForceCopy) {
    var self = this;

    // when wrapping a node, we want all the items, even if the original
    // query options are excluding them.
    // this can happen when copying from the left hand pane of the bookmarks
    // organizer
    function convertNode(cNode) {
      if (self.nodeIsFolder(cNode) && asQuery(cNode).queryOptions.excludeItems) {
        var concreteId = self.getConcreteItemId(cNode);
        return self.getFolderContents(concreteId, false, true).root;
      }
      return cNode;
    }

    switch (aType) {
      case this.TYPE_X_MOZ_PLACE:
      case this.TYPE_X_MOZ_PLACE_SEPARATOR:
      case this.TYPE_X_MOZ_PLACE_CONTAINER:
        var writer = {
          value: "",
          write: function PU_wrapNode__write(aStr, aLen) {
            this.value += aStr;
          }
        };
        self.serializeNodeAsJSONToOutputStream(convertNode(aNode), writer, true, aForceCopy);
        return writer.value;
      case this.TYPE_X_MOZ_URL:
        function gatherDataUrl(bNode) {
          if (self.nodeIsLivemarkContainer(bNode)) {
            var siteURI = self.livemarks.getSiteURI(bNode.itemId).spec;
            return siteURI + NEWLINE + bNode.title;
          }
          if (self.nodeIsURI(bNode))
            return (aOverrideURI || bNode.uri) + NEWLINE + bNode.title;
          // ignore containers and separators - items without valid URIs
          return "";
        }
        return gatherDataUrl(convertNode(aNode));

      case this.TYPE_HTML:
        function gatherDataHtml(bNode) {
          function htmlEscape(s) {
            s = s.replace(/&/g, "&amp;");
            s = s.replace(/>/g, "&gt;");
            s = s.replace(/</g, "&lt;");
            s = s.replace(/"/g, "&quot;");
            s = s.replace(/'/g, "&apos;");
            return s;
          }
          // escape out potential HTML in the title
          var escapedTitle = bNode.title ? htmlEscape(bNode.title) : "";
          if (self.nodeIsLivemarkContainer(bNode)) {
            var siteURI = self.livemarks.getSiteURI(bNode.itemId).spec;
            return "<A HREF=\"" + siteURI + "\">" + escapedTitle + "</A>" + NEWLINE;
          }
          if (self.nodeIsContainer(bNode)) {
            asContainer(bNode);
            var wasOpen = bNode.containerOpen;
            if (!wasOpen)
              bNode.containerOpen = true;

            var childString = "<DL><DT>" + escapedTitle + "</DT>" + NEWLINE;
            var cc = bNode.childCount;
            for (var i = 0; i < cc; ++i)
              childString += "<DD>"
                             + NEWLINE
                             + gatherDataHtml(bNode.getChild(i))
                             + "</DD>"
                             + NEWLINE;
            bNode.containerOpen = wasOpen;
            return childString + "</DL>" + NEWLINE;
          }
          if (self.nodeIsURI(bNode))
            return "<A HREF=\"" + bNode.uri + "\">" + escapedTitle + "</A>" + NEWLINE;
          if (self.nodeIsSeparator(bNode))
            return "<HR>" + NEWLINE;
          return "";
        }
        return gatherDataHtml(convertNode(aNode));
    }
    // case this.TYPE_UNICODE:
    function gatherDataText(bNode) {
      if (self.nodeIsLivemarkContainer(bNode))
        return self.livemarks.getSiteURI(bNode.itemId).spec;
      if (self.nodeIsContainer(bNode)) {
        asContainer(bNode);
        var wasOpen = bNode.containerOpen;
        if (!wasOpen)
          bNode.containerOpen = true;

        var childString = bNode.title + NEWLINE;
        var cc = bNode.childCount;
        for (var i = 0; i < cc; ++i) {
          var child = bNode.getChild(i);
          var suffix = i < (cc - 1) ? NEWLINE : "";
          childString += gatherDataText(child) + suffix;
        }
        bNode.containerOpen = wasOpen;
        return childString;
      }
      if (self.nodeIsURI(bNode))
        return (aOverrideURI || bNode.uri);
      if (self.nodeIsSeparator(bNode))
        return "--------------------";
      return "";
    }

    return gatherDataText(convertNode(aNode));
  },

  /**
   * Unwraps data from the Clipboard or the current Drag Session.
   * @param   blob
   *          A blob (string) of data, in some format we potentially know how
   *          to parse.
   * @param   type
   *          The content type of the blob.
   * @returns An array of objects representing each item contained by the source.
   */
  unwrapNodes: function PU_unwrapNodes(blob, type) {
    // We split on "\n"  because the transferable system converts "\r\n" to "\n"
    var nodes = [];
    switch(type) {
      case this.TYPE_X_MOZ_PLACE:
      case this.TYPE_X_MOZ_PLACE_SEPARATOR:
      case this.TYPE_X_MOZ_PLACE_CONTAINER:
        var JSON = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
        nodes = JSON.decode("[" + blob + "]");
        break;
      case this.TYPE_X_MOZ_URL:
        var parts = blob.split("\n");
        // data in this type has 2 parts per entry, so if there are fewer
        // than 2 parts left, the blob is malformed and we should stop
        // but drag and drop of files from the shell has parts.length = 1
        if (parts.length != 1 && parts.length % 2)
          break;
        for (var i = 0; i < parts.length; i=i+2) {
          var uriString = parts[i];
          var titleString = "";
          if (parts.length > i+1)
            titleString = parts[i+1];
          else {
            // for drag and drop of files, try to use the leafName as title
            try {
              titleString = this._uri(uriString).QueryInterface(Ci.nsIURL)
                              .fileName;
            }
            catch (e) {}
          }
          // note:  this._uri() will throw if uriString is not a valid URI
          if (this._uri(uriString)) {
            nodes.push({ uri: uriString,
                         title: titleString ? titleString : uriString ,
                         type: this.TYPE_X_MOZ_URL });
          }
        }
        break;
      case this.TYPE_UNICODE:
        var parts = blob.split("\n");
        for (var i = 0; i < parts.length; i++) {
          var uriString = parts[i];
          // note: this._uri() will throw if uriString is not a valid URI
          if (uriString != "" && this._uri(uriString))
            nodes.push({ uri: uriString,
                         title: uriString,
                         type: this.TYPE_X_MOZ_URL });
        }
        break;
      default:
        LOG("Cannot unwrap data of type " + type);
        throw Cr.NS_ERROR_INVALID_ARG;
    }
    return nodes;
  },

  /**
   * Generates a nsINavHistoryResult for the contents of a folder.
   * @param   folderId
   *          The folder to open
   * @param   [optional] excludeItems
   *          True to hide all items (individual bookmarks). This is used on
   *          the left places pane so you just get a folder hierarchy.
   * @param   [optional] expandQueries
   *          True to make query items expand as new containers. For managing,
   *          you want this to be false, for menus and such, you want this to
   *          be true.
   * @returns A nsINavHistoryResult containing the contents of the
   *          folder. The result.root is guaranteed to be open.
   */
  getFolderContents:
  function PU_getFolderContents(aFolderId, aExcludeItems, aExpandQueries) {
    var query = this.history.getNewQuery();
    query.setFolders([aFolderId], 1);
    var options = this.history.getNewQueryOptions();
    options.excludeItems = aExcludeItems;
    options.expandQueries = aExpandQueries;

    var result = this.history.executeQuery(query, options);
    result.root.containerOpen = true;
    return result;
  },

  /**
   * Fetch all annotations for a URI, including all properties of each
   * annotation which would be required to recreate it.
   * @param aURI
   *        The URI for which annotations are to be retrieved.
   * @return Array of objects, each containing the following properties:
   *         name, flags, expires, mimeType, type, value
   */
  getAnnotationsForURI: function PU_getAnnotationsForURI(aURI) {
    var annosvc = this.annotations;
    var annos = [], val = null;
    var annoNames = annosvc.getPageAnnotationNames(aURI, {});
    for (var i = 0; i < annoNames.length; i++) {
      var flags = {}, exp = {}, mimeType = {}, storageType = {};
      annosvc.getPageAnnotationInfo(aURI, annoNames[i], flags, exp, mimeType, storageType);
      if (storageType.value == annosvc.TYPE_BINARY) {
        var data = {}, length = {}, mimeType = {};
        annosvc.getPageAnnotationBinary(aURI, annoNames[i], data, length, mimeType);
        val = data.value;
      }
      else
        val = annosvc.getPageAnnotation(aURI, annoNames[i]);

      annos.push({name: annoNames[i],
                  flags: flags.value,
                  expires: exp.value,
                  mimeType: mimeType.value,
                  type: storageType.value,
                  value: val});
    }
    return annos;
  },

  /**
   * Fetch all annotations for an item, including all properties of each
   * annotation which would be required to recreate it.
   * @param aItemId
   *        The identifier of the itme for which annotations are to be
   *        retrieved.
   * @return Array of objects, each containing the following properties:
   *         name, flags, expires, mimeType, type, value
   */
  getAnnotationsForItem: function PU_getAnnotationsForItem(aItemId) {
    var annosvc = this.annotations;
    var annos = [], val = null;
    var annoNames = annosvc.getItemAnnotationNames(aItemId, {});
    for (var i = 0; i < annoNames.length; i++) {
      var flags = {}, exp = {}, mimeType = {}, storageType = {};
      annosvc.getItemAnnotationInfo(aItemId, annoNames[i], flags, exp, mimeType, storageType);
      if (storageType.value == annosvc.TYPE_BINARY) {
        var data = {}, length = {}, mimeType = {};
        annosvc.geItemAnnotationBinary(aItemId, annoNames[i], data, length, mimeType);
        val = data.value;
      }
      else
        val = annosvc.getItemAnnotation(aItemId, annoNames[i]);

      annos.push({name: annoNames[i],
                  flags: flags.value,
                  expires: exp.value,
                  mimeType: mimeType.value,
                  type: storageType.value,
                  value: val});
    }
    return annos;
  },

  /**
   * Annotate a URI with a batch of annotations.
   * @param aURI
   *        The URI for which annotations are to be set.
   * @param aAnnotations
   *        Array of objects, each containing the following properties:
   *        name, flags, expires, type, mimeType (only used for binary
   *        annotations) value.
   */
  setAnnotationsForURI: function PU_setAnnotationsForURI(aURI, aAnnos) {
    var annosvc = this.annotations;
    aAnnos.forEach(function(anno) {
      var flags = ("flags" in anno) ? anno.flags : 0;
      var expires = ("expires" in anno) ?
        anno.expires : Ci.nsIAnnotationService.EXPIRE_NEVER;
      if (anno.type == annosvc.TYPE_BINARY) {
        annosvc.setPageAnnotationBinary(aURI, anno.name, anno.value,
                                        anno.value.length, anno.mimeType,
                                        flags, expires);
      }
      else
        annosvc.setPageAnnotation(aURI, anno.name, anno.value, flags, expires);
    });
  },

  /**
   * Annotate an item with a batch of annotations.
   * @param aItemId
   *        The identifier of the item for which annotations are to be set
   * @param aAnnotations
   *        Array of objects, each containing the following properties:
   *        name, flags, expires, type, mimeType (only used for binary
   *        annotations) value.
   */
  setAnnotationsForItem: function PU_setAnnotationsForItem(aItemId, aAnnos) {
    var annosvc = this.annotations;
    aAnnos.forEach(function(anno) {
      var flags = ("flags" in anno) ? anno.flags : 0;
      var expires = ("expires" in anno) ?
        anno.expires : Ci.nsIAnnotationService.EXPIRE_NEVER;
      if (anno.type == annosvc.TYPE_BINARY) {
        annosvc.setItemAnnotationBinary(aItemId, anno.name, anno.value,
                                        anno.value.length, anno.mimeType,
                                        flags, expires);
      }
      else {
        annosvc.setItemAnnotation(aItemId, anno.name, anno.value, flags,
                                  expires);
      }
    });
  },

  /**
   * Helper for getting a serialized Places query for a particular folder.
   * @param aFolderId The folder id to get a query for.
   * @return string serialized place URI
   */
  getQueryStringForFolder: function PU_getQueryStringForFolder(aFolderId) {
    var options = this.history.getNewQueryOptions();
    var query = this.history.getNewQuery();
    query.setFolders([aFolderId], 1);
    return this.history.queriesToQueryString([query], 1, options);
  },

  // identifier getters for special folders
  get placesRootId() {
    delete this.placesRootId;
    return this.placesRootId = this.bookmarks.placesRoot;
  },

  get bookmarksMenuFolderId() {
    delete this.bookmarksMenuFolderId;
    return this.bookmarksMenuFolderId = this.bookmarks.bookmarksMenuFolder;
  },

  get toolbarFolderId() {
    delete this.toolbarFolderId;
    return this.toolbarFolderId = this.bookmarks.toolbarFolder;
  },

  get tagsFolderId() {
    delete this.tagsFolderId;
    return this.tagsFolderId = this.bookmarks.tagsFolder;
  },

  get unfiledBookmarksFolderId() {
    delete this.unfiledBookmarksFolderId;
    return this.unfiledBookmarksFolderId = this.bookmarks.unfiledBookmarksFolder;
  },

  /**
   * Set the POST data associated with a bookmark, if any.
   * Used by POST keywords.
   *   @param aBookmarkId
   *   @returns string of POST data
   */
  setPostDataForBookmark: function PU_setPostDataForBookmark(aBookmarkId, aPostData) {
    const annos = this.annotations;
    if (aPostData)
      annos.setItemAnnotation(aBookmarkId, POST_DATA_ANNO, aPostData, 
                              0, Ci.nsIAnnotationService.EXPIRE_NEVER);
    else if (annos.itemHasAnnotation(aBookmarkId, POST_DATA_ANNO))
      annos.removeItemAnnotation(aBookmarkId, POST_DATA_ANNO);
  },