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Diffstat (limited to 'browser/components/places/content/treeView.js')
| -rw-r--r-- | browser/components/places/content/treeView.js | 1770 |
1 files changed, 1770 insertions, 0 deletions
diff --git a/browser/components/places/content/treeView.js b/browser/components/places/content/treeView.js new file mode 100644 index 000000000..db31ceebe --- /dev/null +++ b/browser/components/places/content/treeView.js @@ -0,0 +1,1770 @@ +/* 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/. */ + +Components.utils.import('resource://gre/modules/XPCOMUtils.jsm'); + +const PTV_interfaces = [Ci.nsITreeView, + Ci.nsINavHistoryResultObserver, + Ci.nsINavHistoryResultTreeViewer, + Ci.nsISupportsWeakReference]; + +function PlacesTreeView(aFlatList, aOnOpenFlatContainer, aController) { + this._tree = null; + this._result = null; + this._selection = null; + this._rootNode = null; + this._rows = []; + this._flatList = aFlatList; + this._openContainerCallback = aOnOpenFlatContainer; + this._controller = aController; +} + +PlacesTreeView.prototype = { + get wrappedJSObject() this, + + __dateService: null, + get _dateService() { + if (!this.__dateService) { + this.__dateService = Cc["@mozilla.org/intl/scriptabledateformat;1"]. + getService(Ci.nsIScriptableDateFormat); + } + return this.__dateService; + }, + + QueryInterface: XPCOMUtils.generateQI(PTV_interfaces), + + // Bug 761494: + // ---------- + // Some addons use methods from nsINavHistoryResultObserver and + // nsINavHistoryResultTreeViewer, without QIing to these interfaces first. + // That's not a problem when the view is retrieved through the + // <tree>.view getter (which returns the wrappedJSObject of this object), + // it raises an issue when the view retrieved through the treeBoxObject.view + // getter. Thus, to avoid breaking addons, the interfaces are prefetched. + classInfo: XPCOMUtils.generateCI({ interfaces: PTV_interfaces }), + + /** + * This is called once both the result and the tree are set. + */ + _finishInit: function() { + let selection = this.selection; + if (selection) + selection.selectEventsSuppressed = true; + + if (!this._rootNode.containerOpen) { + // This triggers containerStateChanged which then builds the visible + // section. + this._rootNode.containerOpen = true; + } + else + this.invalidateContainer(this._rootNode); + + // "Activate" the sorting column and update commands. + this.sortingChanged(this._result.sortingMode); + + if (selection) + selection.selectEventsSuppressed = false; + }, + + /** + * Plain Container: container result nodes which may never include sub + * hierarchies. + * + * When the rows array is constructed, we don't set the children of plain + * containers. Instead, we keep placeholders for these children. We then + * build these children lazily as the tree asks us for information about each + * row. Luckily, the tree doesn't ask about rows outside the visible area. + * + * @see _getNodeForRow and _getRowForNode for the actual magic. + * + * @note It's guaranteed that all containers are listed in the rows + * elements array. It's also guaranteed that separators (if they're not + * filtered, see below) are listed in the visible elements array, because + * bookmark folders are never built lazily, as described above. + * + * @param aContainer + * A container result node. + * + * @return true if aContainer is a plain container, false otherwise. + */ + _isPlainContainer: function(aContainer) { + // Livemarks are always plain containers. + if (this._controller.hasCachedLivemarkInfo(aContainer)) + return true; + + // We don't know enough about non-query containers. + if (!(aContainer instanceof Ci.nsINavHistoryQueryResultNode)) + return false; + + switch (aContainer.queryOptions.resultType) { + case Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_QUERY: + case Ci.nsINavHistoryQueryOptions.RESULTS_AS_SITE_QUERY: + case Ci.nsINavHistoryQueryOptions.RESULTS_AS_DATE_SITE_QUERY: + case Ci.nsINavHistoryQueryOptions.RESULTS_AS_TAG_QUERY: + return false; + } + + // If it's a folder, it's not a plain container. + let nodeType = aContainer.type; + return nodeType != Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER && + nodeType != Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER_SHORTCUT; + }, + + /** + * Gets the row number for a given node. Assumes that the given node is + * visible (i.e. it's not an obsolete node). + * + * @param aNode + * A result node. Do not pass an obsolete node, or any + * node which isn't supposed to be in the tree (e.g. separators in + * sorted trees). + * @param [optional] aForceBuild + * @see _isPlainContainer. + * If true, the row will be computed even if the node still isn't set + * in our rows array. + * @param [optional] aParentRow + * The row of aNode's parent. Ignored for the root node. + * @param [optional] aNodeIndex + * The index of aNode in its parent. Only used if aParentRow is + * set too. + * + * @throws if aNode is invisible. + * @note If aParentRow and aNodeIndex are passed and parent is a plain + * container, this method will just return a calculated row value, without + * making assumptions on existence of the node at that position. + * @return aNode's row if it's in the rows list or if aForceBuild is set, -1 + * otherwise. + */ + _getRowForNode: + function(aNode, aForceBuild, aParentRow, aNodeIndex) { + if (aNode == this._rootNode) + throw new Error("The root node is never visible"); + + // A node is removed form the view either if it has no parent or if its + // root-ancestor is not the root node (in which case that's the node + // for which nodeRemoved was called). + // Tycho: let ancestors = [x for (x of PlacesUtils.nodeAncestors(aNode))]; + let ancestors = []; + for (let x of PlacesUtils.nodeAncestors(aNode)) { + ancestors.push(x); + } + + if (ancestors.length == 0 || + ancestors[ancestors.length - 1] != this._rootNode) { + throw new Error("Removed node passed to _getRowForNode"); + } + + // Ensure that the entire chain is open, otherwise that node is invisible. + for (let ancestor of ancestors) { + if (!ancestor.containerOpen) + throw new Error("Invisible node passed to _getRowForNode"); + } + + // Non-plain containers are initially built with their contents. + let parent = aNode.parent; + let parentIsPlain = this._isPlainContainer(parent); + if (!parentIsPlain) { + if (parent == this._rootNode) + return this._rows.indexOf(aNode); + + return this._rows.indexOf(aNode, aParentRow); + } + + let row = -1; + let useNodeIndex = typeof(aNodeIndex) == "number"; + if (parent == this._rootNode) { + if (aNode instanceof Ci.nsINavHistoryResultNode) { + row = useNodeIndex ? aNodeIndex : this._rootNode.getChildIndex(aNode); + } + } else if (useNodeIndex && typeof(aParentRow) == "number") { + // If we have both the row of the parent node, and the node's index, we + // can avoid searching the rows array if the parent is a plain container. + row = aParentRow + aNodeIndex + 1; + } else { + // Look for the node in the nodes array. Start the search at the parent + // row. If the parent row isn't passed, we'll pass undefined to indexOf, + // which is fine. + row = this._rows.indexOf(aNode, aParentRow); + if (row == -1 && aForceBuild) { + let parentRow = typeof(aParentRow) == "number" ? aParentRow + : this._getRowForNode(parent); + row = parentRow + parent.getChildIndex(aNode) + 1; + } + } + + if (row != -1) + this._rows[row] = aNode; + + return row; + }, + + /** + * Given a row, finds and returns the parent details of the associated node. + * + * @param aChildRow + * Row number. + * @return [parentNode, parentRow] + */ + _getParentByChildRow: function(aChildRow) { + let node = this._getNodeForRow(aChildRow); + let parent = (node === null) ? this._rootNode : node.parent; + + // The root node is never visible + if (parent == this._rootNode) + return [this._rootNode, -1]; + + let parentRow = this._rows.lastIndexOf(parent, aChildRow - 1); + return [parent, parentRow]; + }, + + /** + * Gets the node at a given row. + */ + _getNodeForRow: function(aRow) { + if (aRow < 0) { + return null; + } + + let node = this._rows[aRow]; + if (node !== undefined) + return node; + + // Find the nearest node. + let rowNode, row; + for (let i = aRow - 1; i >= 0 && rowNode === undefined; i--) { + rowNode = this._rows[i]; + row = i; + } + + // If there's no container prior to the given row, it's a child of + // the root node (remember: all containers are listed in the rows array). + if (!rowNode) + return this._rows[aRow] = this._rootNode.getChild(aRow); + + // Unset elements may exist only in plain containers. Thus, if the nearest + // node is a container, it's the row's parent, otherwise, it's a sibling. + if (rowNode instanceof Ci.nsINavHistoryContainerResultNode) + return this._rows[aRow] = rowNode.getChild(aRow - row - 1); + + let [parent, parentRow] = this._getParentByChildRow(row); + return this._rows[aRow] = parent.getChild(aRow - parentRow - 1); + }, + + /** + * This takes a container and recursively appends our rows array per its + * contents. Assumes that the rows arrays has no rows for the given + * container. + * + * @param [in] aContainer + * A container result node. + * @param [in] aFirstChildRow + * The first row at which nodes may be inserted to the row array. + * In other words, that's aContainer's row + 1. + * @param [out] aToOpen + * An array of containers to open once the build is done. + * + * @return the number of rows which were inserted. + */ + _buildVisibleSection: + function(aContainer, aFirstChildRow, aToOpen) + { + // There's nothing to do if the container is closed. + if (!aContainer.containerOpen) + return 0; + + // Inserting the new elements into the rows array in one shot (by + // Array.concat) is faster than resizing the array (by splice) on each loop + // iteration. + let cc = aContainer.childCount; + let newElements = new Array(cc); + this._rows = this._rows.splice(0, aFirstChildRow) + .concat(newElements, this._rows); + + if (this._isPlainContainer(aContainer)) + return cc; + + const openLiteral = PlacesUIUtils.RDF.GetResource("http://home.netscape.com/NC-rdf#open"); + const trueLiteral = PlacesUIUtils.RDF.GetLiteral("true"); + let sortingMode = this._result.sortingMode; + + let rowsInserted = 0; + for (let i = 0; i < cc; i++) { + let curChild = aContainer.getChild(i); + let curChildType = curChild.type; + + let row = aFirstChildRow + rowsInserted; + + // Don't display separators when sorted. + if (curChildType == Ci.nsINavHistoryResultNode.RESULT_TYPE_SEPARATOR) { + if (sortingMode != Ci.nsINavHistoryQueryOptions.SORT_BY_NONE) { + // Remove the element for the filtered separator. + // Notice that the rows array was initially resized to include all + // children. + this._rows.splice(row, 1); + continue; + } + } + + this._rows[row] = curChild; + rowsInserted++; + + // Recursively do containers. + if (!this._flatList && + curChild instanceof Ci.nsINavHistoryContainerResultNode && + !this._controller.hasCachedLivemarkInfo(curChild)) { + let resource = this._getResourceForNode(curChild); + let isopen = resource != null && + PlacesUIUtils.localStore.HasAssertion(resource, + openLiteral, + trueLiteral, true); + if (isopen != curChild.containerOpen) + aToOpen.push(curChild); + else if (curChild.containerOpen && curChild.childCount > 0) + rowsInserted += this._buildVisibleSection(curChild, row + 1, aToOpen); + } + } + + return rowsInserted; + }, + + /** + * This counts how many rows a node takes in the tree. For containers it + * will count the node itself plus any child node following it. + */ + _countVisibleRowsForNodeAtRow: + function(aNodeRow) { + let node = this._rows[aNodeRow]; + + // If it's not listed yet, we know that it's a leaf node (instanceof also + // null-checks). + if (!(node instanceof Ci.nsINavHistoryContainerResultNode)) + return 1; + + let outerLevel = node.indentLevel; + for (let i = aNodeRow + 1; i < this._rows.length; i++) { + let rowNode = this._rows[i]; + if (rowNode && rowNode.indentLevel <= outerLevel) + return i - aNodeRow; + } + + // This node plus its children take up the bottom of the list. + return this._rows.length - aNodeRow; + }, + + _getSelectedNodesInRange: + function(aFirstRow, aLastRow) { + let selection = this.selection; + let rc = selection.getRangeCount(); + if (rc == 0) + return []; + + // The visible-area borders are needed for checking whether a + // selected row is also visible. + let firstVisibleRow = this._tree.getFirstVisibleRow(); + let lastVisibleRow = this._tree.getLastVisibleRow(); + + let nodesInfo = []; + for (let rangeIndex = 0; rangeIndex < rc; rangeIndex++) { + let min = { }, max = { }; + selection.getRangeAt(rangeIndex, min, max); + + // If this range does not overlap the replaced chunk, we don't need to + // persist the selection. + if (max.value < aFirstRow || min.value > aLastRow) + continue; + + let firstRow = Math.max(min.value, aFirstRow); + let lastRow = Math.min(max.value, aLastRow); + for (let i = firstRow; i <= lastRow; i++) { + nodesInfo.push({ + node: this._rows[i], + oldRow: i, + wasVisible: i >= firstVisibleRow && i <= lastVisibleRow + }); + } + } + + return nodesInfo; + }, + + /** + * Tries to find an equivalent node for a node which was removed. We first + * look for the original node, in case it was just relocated. Then, if we + * that node was not found, we look for a node that has the same itemId, uri + * and time values. + * + * @param aUpdatedContainer + * An ancestor of the node which was removed. It does not have to be + * its direct parent. + * @param aOldNode + * The node which was removed. + * + * @return the row number of an equivalent node for aOldOne, if one was + * found, -1 otherwise. + */ + _getNewRowForRemovedNode: + function(aUpdatedContainer, aOldNode) { + if (aOldNode == undefined) { + return -1; + } + let parent = aOldNode.parent; + if (parent) { + // If the node's parent is still set, the node is not obsolete + // and we should just find out its new position. + // However, if any of the node's ancestor is closed, the node is + // invisible. + let ancestors = PlacesUtils.nodeAncestors(aOldNode); + for (let ancestor of ancestors) { + if (!ancestor.containerOpen) + return -1; + } + + return this._getRowForNode(aOldNode, true); + } + + // There's a broken edge case here. + // If a visit appears in two queries, and the second one was + // the old node, we'll select the first one after refresh. There's + // nothing we could do about that, because aOldNode.parent is + // gone by the time invalidateContainer is called. + let newNode = aUpdatedContainer.findNodeByDetails(aOldNode.uri, + aOldNode.time, + aOldNode.itemId, + true); + if (!newNode) + return -1; + + return this._getRowForNode(newNode, true); + }, + + /** + * Restores a given selection state as near as possible to the original + * selection state. + * + * @param aNodesInfo + * The persisted selection state as returned by + * _getSelectedNodesInRange. + * @param aUpdatedContainer + * The container which was updated. + */ + _restoreSelection: + function(aNodesInfo, aUpdatedContainer) { + if (aNodesInfo.length == 0) + return; + + let selection = this.selection; + + // Attempt to ensure that previously-visible selection will be visible + // if it's re-selected. However, we can only ensure that for one row. + let scrollToRow = -1; + for (let i = 0; i < aNodesInfo.length; i++) { + let nodeInfo = aNodesInfo[i]; + let row = this._getNewRowForRemovedNode(aUpdatedContainer, + nodeInfo.node); + // Select the found node, if any. + if (row != -1) { + selection.rangedSelect(row, row, true); + if (nodeInfo.wasVisible && scrollToRow == -1) + scrollToRow = row; + } + } + + // If only one node was previously selected and there's no selection now, + // select the node at its old row, if any. + if (aNodesInfo.length == 1 && selection.count == 0) { + let row = Math.min(aNodesInfo[0].oldRow, this._rows.length - 1); + if (row != -1) { + selection.rangedSelect(row, row, true); + if (aNodesInfo[0].wasVisible && scrollToRow == -1) + scrollToRow = aNodesInfo[0].oldRow; + } + } + + if (scrollToRow != -1) + this._tree.ensureRowIsVisible(scrollToRow); + }, + + _convertPRTimeToString: function(aTime) { + const MS_PER_MINUTE = 60000; + const MS_PER_DAY = 86400000; + let timeMs = aTime / 1000; // PRTime is in microseconds + + // Date is calculated starting from midnight, so the modulo with a day are + // milliseconds from today's midnight. + // getTimezoneOffset corrects that based on local time, notice midnight + // can have a different offset during DST-change days. + let dateObj = new Date(); + let now = dateObj.getTime() - dateObj.getTimezoneOffset() * MS_PER_MINUTE; + let midnight = now - (now % MS_PER_DAY); + midnight += new Date(midnight).getTimezoneOffset() * MS_PER_MINUTE; + + let dateFormat = timeMs >= midnight ? + Ci.nsIScriptableDateFormat.dateFormatNone : + Ci.nsIScriptableDateFormat.dateFormatShort; + + let timeObj = new Date(timeMs); + return (this._dateService.FormatDateTime("", dateFormat, + Ci.nsIScriptableDateFormat.timeFormatNoSeconds, + timeObj.getFullYear(), timeObj.getMonth() + 1, + timeObj.getDate(), timeObj.getHours(), + timeObj.getMinutes(), timeObj.getSeconds())); + }, + + COLUMN_TYPE_UNKNOWN: 0, + COLUMN_TYPE_TITLE: 1, + COLUMN_TYPE_URI: 2, + COLUMN_TYPE_DATE: 3, + COLUMN_TYPE_VISITCOUNT: 4, + COLUMN_TYPE_KEYWORD: 5, + COLUMN_TYPE_DESCRIPTION: 6, + COLUMN_TYPE_DATEADDED: 7, + COLUMN_TYPE_LASTMODIFIED: 8, + COLUMN_TYPE_TAGS: 9, + COLUMN_TYPE_PARENTFOLDER: 10, + COLUMN_TYPE_PARENTFOLDERPATH: 11, + + _getColumnType: function(aColumn) { + let columnType = aColumn.element.getAttribute("anonid") || aColumn.id; + + switch (columnType) { + case "title": + return this.COLUMN_TYPE_TITLE; + case "url": + return this.COLUMN_TYPE_URI; + case "date": + return this.COLUMN_TYPE_DATE; + case "visitCount": + return this.COLUMN_TYPE_VISITCOUNT; + case "keyword": + return this.COLUMN_TYPE_KEYWORD; + case "description": + return this.COLUMN_TYPE_DESCRIPTION; + case "dateAdded": + return this.COLUMN_TYPE_DATEADDED; + case "lastModified": + return this.COLUMN_TYPE_LASTMODIFIED; + case "tags": + return this.COLUMN_TYPE_TAGS; + case "parentFolder": + return this.COLUMN_TYPE_PARENTFOLDER; + case "parentFolderPath": + return this.COLUMN_TYPE_PARENTFOLDERPATH; + } + return this.COLUMN_TYPE_UNKNOWN; + }, + + _sortTypeToColumnType: function(aSortType) { + switch (aSortType) { + case Ci.nsINavHistoryQueryOptions.SORT_BY_TITLE_ASCENDING: + return [this.COLUMN_TYPE_TITLE, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_TITLE_DESCENDING: + return [this.COLUMN_TYPE_TITLE, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_DATE_ASCENDING: + return [this.COLUMN_TYPE_DATE, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_DATE_DESCENDING: + return [this.COLUMN_TYPE_DATE, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_URI_ASCENDING: + return [this.COLUMN_TYPE_URI, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_URI_DESCENDING: + return [this.COLUMN_TYPE_URI, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_VISITCOUNT_ASCENDING: + return [this.COLUMN_TYPE_VISITCOUNT, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_VISITCOUNT_DESCENDING: + return [this.COLUMN_TYPE_VISITCOUNT, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_KEYWORD_ASCENDING: + return [this.COLUMN_TYPE_KEYWORD, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_KEYWORD_DESCENDING: + return [this.COLUMN_TYPE_KEYWORD, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_ANNOTATION_ASCENDING: + if (this._result.sortingAnnotation == PlacesUIUtils.DESCRIPTION_ANNO) + return [this.COLUMN_TYPE_DESCRIPTION, false]; + break; + case Ci.nsINavHistoryQueryOptions.SORT_BY_ANNOTATION_DESCENDING: + if (this._result.sortingAnnotation == PlacesUIUtils.DESCRIPTION_ANNO) + return [this.COLUMN_TYPE_DESCRIPTION, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_DATEADDED_ASCENDING: + return [this.COLUMN_TYPE_DATEADDED, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_DATEADDED_DESCENDING: + return [this.COLUMN_TYPE_DATEADDED, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_LASTMODIFIED_ASCENDING: + return [this.COLUMN_TYPE_LASTMODIFIED, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_LASTMODIFIED_DESCENDING: + return [this.COLUMN_TYPE_LASTMODIFIED, true]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_TAGS_ASCENDING: + return [this.COLUMN_TYPE_TAGS, false]; + case Ci.nsINavHistoryQueryOptions.SORT_BY_TAGS_DESCENDING: + return [this.COLUMN_TYPE_TAGS, true]; + } + return [this.COLUMN_TYPE_UNKNOWN, false]; + }, + + // nsINavHistoryResultObserver + nodeInserted: function(aParentNode, aNode, aNewIndex) { + NS_ASSERT(this._result, "Got a notification but have no result!"); + if (!this._tree || !this._result) + return; + + // Bail out for hidden separators. + if (PlacesUtils.nodeIsSeparator(aNode) && this.isSorted()) + return; + + let parentRow; + if (aParentNode != this._rootNode) { + parentRow = this._getRowForNode(aParentNode); + + // Update parent when inserting the first item, since twisty has changed. + if (aParentNode.childCount == 1) + this._tree.invalidateRow(parentRow); + } + + // Compute the new row number of the node. + let row = -1; + let cc = aParentNode.childCount; + if (aNewIndex == 0 || this._isPlainContainer(aParentNode) || cc == 0) { + // We don't need to worry about sub hierarchies of the parent node + // if it's a plain container, or if the new node is its first child. + if (aParentNode == this._rootNode) + row = aNewIndex; + else + row = parentRow + aNewIndex + 1; + } + else { + // Here, we try to find the next visible element in the child list so we + // can set the new visible index to be right before that. Note that we + // have to search down instead of up, because some siblings could have + // children themselves that would be in the way. + let separatorsAreHidden = PlacesUtils.nodeIsSeparator(aNode) && + this.isSorted(); + for (let i = aNewIndex + 1; i < cc; i++) { + let node = aParentNode.getChild(i); + if (!separatorsAreHidden || PlacesUtils.nodeIsSeparator(node)) { + // The children have not been shifted so the next item will have what + // should be our index. + row = this._getRowForNode(node, false, parentRow, i); + break; + } + } + if (row < 0) { + // At the end of the child list without finding a visible sibling. This + // is a little harder because we don't know how many rows the last item + // in our list takes up (it could be a container with many children). + let prevChild = aParentNode.getChild(aNewIndex - 1); + let prevIndex = this._getRowForNode(prevChild, false, parentRow, + aNewIndex - 1); + row = prevIndex + this._countVisibleRowsForNodeAtRow(prevIndex); + } + } + + this._rows.splice(row, 0, aNode); + this._tree.rowCountChanged(row, 1); + + if (PlacesUtils.nodeIsContainer(aNode) && + PlacesUtils.asContainer(aNode).containerOpen) { + this.invalidateContainer(aNode); + } + }, + + /** + * THIS FUNCTION DOES NOT HANDLE cases where a collapsed node is being + * removed but the node it is collapsed with is not being removed (this then + * just swap out the removee with its collapsing partner). The only time + * when we really remove things is when deleting URIs, which will apply to + * all collapsees. This function is called sometimes when resorting items. + * However, we won't do this when sorted by date because dates will never + * change for visits, and date sorting is the only time things are collapsed. + */ + nodeRemoved: function(aParentNode, aNode, aOldIndex) { + NS_ASSERT(this._result, "Got a notification but have no result!"); + if (!this._tree || !this._result) + return; + + // XXX bug 517701: We don't know what to do when the root node is removed. + if (aNode == this._rootNode) + throw Cr.NS_ERROR_NOT_IMPLEMENTED; + + // Bail out for hidden separators. + if (PlacesUtils.nodeIsSeparator(aNode) && this.isSorted()) + return; + + let parentRow = aParentNode == this._rootNode ? + undefined : this._getRowForNode(aParentNode, true); + let oldRow = this._getRowForNode(aNode, true, parentRow, aOldIndex); + if (oldRow < 0) + throw Cr.NS_ERROR_UNEXPECTED; + + // If the node was exclusively selected, the node next to it will be + // selected. + let selectNext = false; + let selection = this.selection; + if (selection.getRangeCount() == 1) { + let min = { }, max = { }; + selection.getRangeAt(0, min, max); + if (min.value == max.value && + this.nodeForTreeIndex(min.value) == aNode) + selectNext = true; + } + + // Remove the node and its children, if any. + let count = this._countVisibleRowsForNodeAtRow(oldRow); + this._rows.splice(oldRow, count); + this._tree.rowCountChanged(oldRow, -count); + + // Redraw the parent if its twisty state has changed. + if (aParentNode != this._rootNode && !aParentNode.hasChildren) { + let parentRow = oldRow - 1; + this._tree.invalidateRow(parentRow); + } + + // Restore selection if the node was exclusively selected. + if (!selectNext) + return; + + // Restore selection. + let rowToSelect = Math.min(oldRow, this._rows.length - 1); + if (rowToSelect != -1) + this.selection.rangedSelect(rowToSelect, rowToSelect, true); + }, + + nodeMoved: + function(aNode, aOldParent, aOldIndex, aNewParent, aNewIndex) { + NS_ASSERT(this._result, "Got a notification but have no result!"); + if (!this._tree || !this._result) + return; + + // Bail out for hidden separators. + if (PlacesUtils.nodeIsSeparator(aNode) && this.isSorted()) + return; + + // Note that at this point the node has already been moved by the backend, + // so we must give hints to _getRowForNode to get the old row position. + let oldParentRow = aOldParent == this._rootNode ? + undefined : this._getRowForNode(aOldParent, true); + let oldRow = this._getRowForNode(aNode, true, oldParentRow, aOldIndex); + if (oldRow < 0) + throw Cr.NS_ERROR_UNEXPECTED; + + // If this node is a container it could take up more than one row. + let count = this._countVisibleRowsForNodeAtRow(oldRow); + + // Persist selection state. + let nodesToReselect = + this._getSelectedNodesInRange(oldRow, oldRow + count); + if (nodesToReselect.length > 0) + this.selection.selectEventsSuppressed = true; + + // Redraw the parent if its twisty state has changed. + if (aOldParent != this._rootNode && !aOldParent.hasChildren) { + let parentRow = oldRow - 1; + this._tree.invalidateRow(parentRow); + } + + // Remove node and its children, if any, from the old position. + this._rows.splice(oldRow, count); + this._tree.rowCountChanged(oldRow, -count); + + // Insert the node into the new position. + this.nodeInserted(aNewParent, aNode, aNewIndex); + + // Restore selection. + if (nodesToReselect.length > 0) { + this._restoreSelection(nodesToReselect, aNewParent); + this.selection.selectEventsSuppressed = false; + } + }, + + _invalidateCellValue: function(aNode, + aColumnType) { + NS_ASSERT(this._result, "Got a notification but have no result!"); + if (!this._tree || !this._result) + return; + + // Nothing to do for the root node. + if (aNode == this._rootNode) + return; + + let row = this._getRowForNode(aNode); + if (row == -1) + return; + + let column = this._findColumnByType(aColumnType); + if (column && !column.element.hidden) + this._tree.invalidateCell(row, column); + + // Last modified time is altered for almost all node changes. + if (aColumnType != this.COLUMN_TYPE_LASTMODIFIED) { + let lastModifiedColumn = + this._findColumnByType(this.COLUMN_TYPE_LASTMODIFIED); + if (lastModifiedColumn && !lastModifiedColumn.hidden) + this._tree.invalidateCell(row, lastModifiedColumn); + } + }, + + _populateLivemarkContainer: function(aNode) { + PlacesUtils.livemarks.getLivemark({ id: aNode.itemId }) + .then(aLivemark => { + let placesNode = aNode; + // Need to check containerOpen since getLivemark is async. + if (!placesNode.containerOpen) + return; + + let children = aLivemark.getNodesForContainer(placesNode); + for (let i = 0; i < children.length; i++) { + let child = children[i]; + this.nodeInserted(placesNode, child, i); + } + }, Components.utils.reportError); + }, + + nodeTitleChanged: function(aNode, aNewTitle) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_TITLE); + }, + + nodeURIChanged: function(aNode, aNewURI) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_URI); + }, + + nodeIconChanged: function(aNode) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_TITLE); + }, + + nodeHistoryDetailsChanged: + function(aNode, aUpdatedVisitDate, + aUpdatedVisitCount) { + if (aNode.parent && this._controller.hasCachedLivemarkInfo(aNode.parent)) { + // Find the node in the parent. + let parentRow = this._flatList ? 0 : this._getRowForNode(aNode.parent); + for (let i = parentRow; i < this._rows.length; i++) { + let child = this.nodeForTreeIndex(i); + if (child.uri == aNode.uri) { + this._cellProperties.delete(child); + this._invalidateCellValue(child, this.COLUMN_TYPE_TITLE); + break; + } + } + return; + } + + this._invalidateCellValue(aNode, this.COLUMN_TYPE_DATE); + this._invalidateCellValue(aNode, this.COLUMN_TYPE_VISITCOUNT); + }, + + nodeTagsChanged: function(aNode) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_TAGS); + }, + + nodeKeywordChanged: function(aNode, aNewKeyword) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_KEYWORD); + }, + + nodeAnnotationChanged: function(aNode, aAnno) { + if (aAnno == PlacesUIUtils.DESCRIPTION_ANNO) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_DESCRIPTION); + } + else if (aAnno == PlacesUtils.LMANNO_FEEDURI) { + PlacesUtils.livemarks.getLivemark({ id: aNode.itemId }) + .then(aLivemark => { + this._controller.cacheLivemarkInfo(aNode, aLivemark); + let properties = this._cellProperties.get(aNode); + this._cellProperties.set(aNode, properties += " livemark"); + // The livemark attribute is set as a cell property on the title cell. + this._invalidateCellValue(aNode, this.COLUMN_TYPE_TITLE); + }, Components.utils.reportError); + } + }, + + nodeDateAddedChanged: function(aNode, aNewValue) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_DATEADDED); + }, + + nodeLastModifiedChanged: + function(aNode, aNewValue) { + this._invalidateCellValue(aNode, this.COLUMN_TYPE_LASTMODIFIED); + }, + + containerStateChanged: + function(aNode, aOldState, aNewState) { + this.invalidateContainer(aNode); + + if (PlacesUtils.nodeIsFolder(aNode) || + (this._flatList && aNode == this._rootNode)) { + let queryOptions = PlacesUtils.asQuery(this._rootNode).queryOptions; + if (queryOptions.excludeItems) { + return; + } + if (aNode.itemId != -1) { // run when there's a valid node id + PlacesUtils.livemarks.getLivemark({ id: aNode.itemId }) + .then(aLivemark => { + let shouldInvalidate = + !this._controller.hasCachedLivemarkInfo(aNode); + this._controller.cacheLivemarkInfo(aNode, aLivemark); + if (aNewState == Components.interfaces.nsINavHistoryContainerResultNode.STATE_OPENED) { + aLivemark.registerForUpdates(aNode, this); + // Prioritize the current livemark. + aLivemark.reload(); + PlacesUtils.livemarks.reloadLivemarks(); + if (shouldInvalidate) + this.invalidateContainer(aNode); + } + else { + aLivemark.unregisterForUpdates(aNode); + } + }, () => undefined); + } + } + }, + + invalidateContainer: function(aContainer) { + NS_ASSERT(this._result, "Need to have a result to update"); + if (!this._tree) + return; + + let startReplacement, replaceCount; + if (aContainer == this._rootNode) { + startReplacement = 0; + replaceCount = this._rows.length; + + // If the root node is now closed, the tree is empty. + if (!this._rootNode.containerOpen) { + this._rows = []; + if (replaceCount) + this._tree.rowCountChanged(startReplacement, -replaceCount); + + return; + } + } + else { + // Update the twisty state. + let row = this._getRowForNode(aContainer); + this._tree.invalidateRow(row); + + // We don't replace the container node itself, so we should decrease the + // replaceCount by 1. + startReplacement = row + 1; + replaceCount = this._countVisibleRowsForNodeAtRow(row) - 1; + } + + // Persist selection state. + let nodesToReselect = + this._getSelectedNodesInRange(startReplacement, + startReplacement + replaceCount); + + // Now update the number of elements. + this.selection.selectEventsSuppressed = true; + + // First remove the old elements + this._rows.splice(startReplacement, replaceCount); + + // If the container is now closed, we're done. + if (!aContainer.containerOpen) { + let oldSelectionCount = this.selection.count; + if (replaceCount) + this._tree.rowCountChanged(startReplacement, -replaceCount); + + // Select the row next to the closed container if any of its + // children were selected, and nothing else is selected. + if (nodesToReselect.length > 0 && + nodesToReselect.length == oldSelectionCount) { + this.selection.rangedSelect(startReplacement, startReplacement, true); + this._tree.ensureRowIsVisible(startReplacement); + } + + this.selection.selectEventsSuppressed = false; + return; + } + + // Otherwise, start a batch first. + this._tree.beginUpdateBatch(); + if (replaceCount) + this._tree.rowCountChanged(startReplacement, -replaceCount); + + let toOpenElements = []; + let elementsAddedCount = this._buildVisibleSection(aContainer, + startReplacement, + toOpenElements); + if (elementsAddedCount) + this._tree.rowCountChanged(startReplacement, elementsAddedCount); + + if (!this._flatList) { + // Now, open any containers that were persisted. + for (let i = 0; i < toOpenElements.length; i++) { + let item = toOpenElements[i]; + let parent = item.parent; + + // Avoid recursively opening containers. + while (parent) { + if (parent.uri == item.uri) + break; + parent = parent.parent; + } + + // If we don't have a parent, we made it all the way to the root + // and didn't find a match, so we can open our item. + if (!parent && !item.containerOpen) + item.containerOpen = true; + } + } + + if (this._controller.hasCachedLivemarkInfo(aContainer)) { + let queryOptions = PlacesUtils.asQuery(this._result.root).queryOptions; + if (!queryOptions.excludeItems) { + this._populateLivemarkContainer(aContainer); + } + } + + this._tree.endUpdateBatch(); + + // Restore selection. + this._restoreSelection(nodesToReselect, aContainer); + this.selection.selectEventsSuppressed = false; + }, + + _columns: [], + _findColumnByType: function(aColumnType) { + if (this._columns[aColumnType]) + return this._columns[aColumnType]; + + let columns = this._tree.columns; + let colCount = columns.count; + for (let i = 0; i < colCount; i++) { + let column = columns.getColumnAt(i); + let columnType = this._getColumnType(column); + this._columns[columnType] = column; + if (columnType == aColumnType) + return column; + } + + // That's completely valid. Most of our trees actually include just the + // title column. + return null; + }, + + sortingChanged: function(aSortingMode) { + if (!this._tree || !this._result) + return; + + // Depending on the sort mode, certain commands may be disabled. + window.updateCommands("sort"); + + let columns = this._tree.columns; + + // Clear old sorting indicator. + let sortedColumn = columns.getSortedColumn(); + if (sortedColumn) + sortedColumn.element.removeAttribute("sortDirection"); + + // Set new sorting indicator by looking through all columns for ours. + if (aSortingMode == Ci.nsINavHistoryQueryOptions.SORT_BY_NONE) + return; + + let [desiredColumn, desiredIsDescending] = + this._sortTypeToColumnType(aSortingMode); + let colCount = columns.count; + let column = this._findColumnByType(desiredColumn); + if (column) { + let sortDir = desiredIsDescending ? "descending" : "ascending"; + column.element.setAttribute("sortDirection", sortDir); + } + }, + + _inBatchMode: false, + batching: function(aToggleMode) { + if (this._inBatchMode != aToggleMode) { + this._inBatchMode = this.selection.selectEventsSuppressed = aToggleMode; + if (this._inBatchMode) { + this._tree.beginUpdateBatch(); + } + else { + this._tree.endUpdateBatch(); + } + } + }, + + get result() this._result, + set result(val) { + if (this._result) { + this._result.removeObserver(this); + this._rootNode.containerOpen = false; + } + + if (val) { + this._result = val; + this._rootNode = this._result.root; + this._cellProperties = new Map(); + this._cuttingNodes = new Set(); + } + else if (this._result) { + delete this._result; + delete this._rootNode; + delete this._cellProperties; + delete this._cuttingNodes; + } + + // If the tree is not set yet, setTree will call finishInit. + if (this._tree && val) + this._finishInit(); + + return val; + }, + + nodeForTreeIndex: function(aIndex) { + if (aIndex > this._rows.length) + throw Cr.NS_ERROR_INVALID_ARG; + + return this._getNodeForRow(aIndex); + }, + + treeIndexForNode: function(aNode) { + // The API allows passing invisible nodes. + try { + return this._getRowForNode(aNode, true); + } + catch(ex) { } + + return Ci.nsINavHistoryResultTreeViewer.INDEX_INVISIBLE; + }, + + _getResourceForNode: function(aNode) + { + let uri = aNode.uri; + NS_ASSERT(uri, "if there is no uri, we can't persist the open state"); + return uri ? PlacesUIUtils.RDF.GetResource(uri) : null; + }, + + // nsITreeView + get rowCount() this._rows.length, + get selection() this._selection, + set selection(val) this._selection = val, + + getRowProperties: function() { return ""; }, + + getCellProperties: + function(aRow, aColumn) { + // for anonid-trees, we need to add the column-type manually + var props = ""; + let columnType = aColumn.element.getAttribute("anonid"); + if (columnType) + props += columnType; + else + columnType = aColumn.id; + + // Set the "ltr" property on url cells + if (columnType == "url") + props += " ltr"; + + if (columnType != "title") + return props; + + let node = this._getNodeForRow(aRow); + + if (this._cuttingNodes.has(node)) { + props += " cutting"; + } + + let properties = this._cellProperties.get(node); + if (properties === undefined) { + properties = ""; + let itemId = node.itemId; + let nodeType = node.type; + if (PlacesUtils.containerTypes.indexOf(nodeType) != -1) { + if (nodeType == Ci.nsINavHistoryResultNode.RESULT_TYPE_QUERY) { + properties += " query"; + if (PlacesUtils.nodeIsTagQuery(node)) + properties += " tagContainer"; + else if (PlacesUtils.nodeIsDay(node)) + properties += " dayContainer"; + else if (PlacesUtils.nodeIsHost(node)) + properties += " hostContainer"; + } + else if (nodeType == Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER || + nodeType == Ci.nsINavHistoryResultNode.RESULT_TYPE_FOLDER_SHORTCUT) { + if (this._controller.hasCachedLivemarkInfo(node)) { + properties += " livemark"; + } + else { + PlacesUtils.livemarks.getLivemark({ id: node.itemId }) + .then(aLivemark => { + this._controller.cacheLivemarkInfo(node, aLivemark); + let props = this._cellProperties.get(node); + this._cellProperties.set(node, props += " livemark"); + // The livemark attribute is set as a cell property on the title cell. + this._invalidateCellValue(node, this.COLUMN_TYPE_TITLE); + }, () => undefined); + } + } + + if (itemId != -1) { + let queryName = PlacesUIUtils.getLeftPaneQueryNameFromId(itemId); + if (queryName) + properties += " OrganizerQuery_" + queryName; + } + } + else if (nodeType == Ci.nsINavHistoryResultNode.RESULT_TYPE_SEPARATOR) + properties += " separator"; + else if (PlacesUtils.nodeIsURI(node)) { + properties += " " + PlacesUIUtils.guessUrlSchemeForUI(node.uri); + + if (this._controller.hasCachedLivemarkInfo(node.parent)) { + properties += " livemarkItem"; + if (node.accessCount) { + properties += " visited"; + } + } + } + + this._cellProperties.set(node, properties); + } + + return props + " " + properties; + }, + + getColumnProperties: function(aColumn) { return ""; }, + + isContainer: function(aRow) { + // Only leaf nodes aren't listed in the rows array. + let node = this._rows[aRow]; + if (node === undefined) + return false; + + if (PlacesUtils.nodeIsContainer(node)) { + // Flat-lists may ignore expandQueries and other query options when + // they are asked to open a container. + if (this._flatList) + return true; + + // treat non-expandable childless queries as non-containers + if (PlacesUtils.nodeIsQuery(node)) { + let parent = node.parent; + if ((PlacesUtils.nodeIsQuery(parent) || + PlacesUtils.nodeIsFolder(parent)) && + !PlacesUtils.asQuery(node).hasChildren) + return PlacesUtils.asQuery(parent).queryOptions.expandQueries; + } + return true; + } + return false; + }, + + isContainerOpen: function(aRow) { + if (this._flatList) + return false; + + // All containers are listed in the rows array. + return this._rows[aRow].containerOpen; + }, + + isContainerEmpty: function(aRow) { + if (this._flatList) + return true; + + let node = this._rows[aRow]; + if (this._controller.hasCachedLivemarkInfo(node)) { + let queryOptions = PlacesUtils.asQuery(this._result.root).queryOptions; + return queryOptions.excludeItems; + } + + // All containers are listed in the rows array. + return !node.hasChildren; + }, + + isSeparator: function(aRow) { + // All separators are listed in the rows array. + let node = this._rows[aRow]; + return node && PlacesUtils.nodeIsSeparator(node); + }, + + isSorted: function() { + return this._result.sortingMode != + Ci.nsINavHistoryQueryOptions.SORT_BY_NONE; + }, + + canDrop: function(aRow, aOrientation, aDataTransfer) { + if (!this._result) + throw Cr.NS_ERROR_UNEXPECTED; + + // Drop position into a sorted treeview would be wrong. + if (this.isSorted()) + return false; + + let ip = this._getInsertionPoint(aRow, aOrientation); + return ip && PlacesControllerDragHelper.canDrop(ip, aDataTransfer); + }, + + _getInsertionPoint: function(index, orientation) { + let container = this._result.root; + let dropNearItemId = -1; + // When there's no selection, assume the container is the container + // the view is populated from (i.e. the result's itemId). + if (index != -1) { + let lastSelected = this.nodeForTreeIndex(index); + if (this.isContainer(index) && orientation == Ci.nsITreeView.DROP_ON) { + // If the last selected item is an open container, append _into_ + // it, rather than insert adjacent to it. + container = lastSelected; + index = -1; + } + else if (lastSelected.containerOpen && + orientation == Ci.nsITreeView.DROP_AFTER && + lastSelected.hasChildren) { + // If the last selected node is an open container and the user is + // trying to drag into it as a first node, really insert into it. + container = lastSelected; + orientation = Ci.nsITreeView.DROP_ON; + index = 0; + } + else { + // Use the last-selected node's container. + container = lastSelected.parent; + + // During its Drag & Drop operation, the tree code closes-and-opens + // containers very often (part of the XUL "spring-loaded folders" + // implementation). And in certain cases, we may reach a closed + // container here. However, we can simply bail out when this happens, + // because we would then be back here in less than a millisecond, when + // the container had been reopened. + if (!container || !container.containerOpen) + return null; + + // Avoid the potentially expensive call to getChildIndex + // if we know this container doesn't allow insertion. + if (PlacesControllerDragHelper.disallowInsertion(container)) + return null; + + let queryOptions = PlacesUtils.asQuery(this._result.root).queryOptions; + if (queryOptions.sortingMode != + Ci.nsINavHistoryQueryOptions.SORT_BY_NONE) { + // If we are within a sorted view, insert at the end. + index = -1; + } + else if (queryOptions.excludeItems || + queryOptions.excludeQueries || + queryOptions.excludeReadOnlyFolders) { + // Some item may be invisible, insert near last selected one. + // We don't replace index here to avoid requests to the db, + // instead it will be calculated later by the controller. + index = -1; + dropNearItemId = lastSelected.itemId; + } + else { + let lsi = container.getChildIndex(lastSelected); + index = orientation == Ci.nsITreeView.DROP_BEFORE ? lsi : lsi + 1; + } + } + } + + if (PlacesControllerDragHelper.disallowInsertion(container)) + return null; + + return new InsertionPoint(PlacesUtils.getConcreteItemId(container), + index, orientation, + PlacesUtils.nodeIsTagQuery(container), + dropNearItemId); + }, + + drop: function(aRow, aOrientation, aDataTransfer) { + // We are responsible for translating the |index| and |orientation| + // parameters into a container id and index within the container, + // since this information is specific to the tree view. + let ip = this._getInsertionPoint(aRow, aOrientation); + if (ip) + PlacesControllerDragHelper.onDrop(ip, aDataTransfer); + + PlacesControllerDragHelper.currentDropTarget = null; + }, + + getParentIndex: function(aRow) { + let [parentNode, parentRow] = this._getParentByChildRow(aRow); + return parentRow; + }, + + hasNextSibling: function(aRow, aAfterIndex) { + if (aRow == this._rows.length - 1) { + // The last row has no sibling. + return false; + } + + let node = this._rows[aRow]; + if (node === undefined || this._isPlainContainer(node.parent)) { + // The node is a child of a plain container. + // If the next row is either unset or has the same parent, + // it's a sibling. + let nextNode = this._rows[aRow + 1]; + return (nextNode == undefined || nextNode.parent == node.parent); + } + + let thisLevel = node.indentLevel; + for (let i = aAfterIndex + 1; i < this._rows.length; ++i) { + let rowNode = this._getNodeForRow(i); + let nextLevel = rowNode.indentLevel; + if (nextLevel == thisLevel) + return true; + if (nextLevel < thisLevel) + break; + } + + return false; + }, + + getLevel: function(aRow) this._getNodeForRow(aRow).indentLevel, + + getImageSrc: function(aRow, aColumn) { + // Only the title column has an image. + if (this._getColumnType(aColumn) != this.COLUMN_TYPE_TITLE) + return ""; + + return this._getNodeForRow(aRow).icon; + }, + + getProgressMode: function(aRow, aColumn) { }, + getCellValue: function(aRow, aColumn) { }, + + getCellText: function(aRow, aColumn) { + let node = this._getNodeForRow(aRow); + switch (this._getColumnType(aColumn)) { + case this.COLUMN_TYPE_TITLE: + // normally, this is just the title, but we don't want empty items in + // the tree view so return a special string if the title is empty. + // Do it here so that callers can still get at the 0 length title + // if they go through the "result" API. + if (PlacesUtils.nodeIsSeparator(node)) + return ""; + return PlacesUIUtils.getBestTitle(node, true); + case this.COLUMN_TYPE_TAGS: + return node.tags; + case this.COLUMN_TYPE_URI: + if (PlacesUtils.nodeIsURI(node)) + return node.uri; + return ""; + case this.COLUMN_TYPE_DATE: + let nodeTime = node.time; + if (nodeTime == 0 || !PlacesUtils.nodeIsURI(node)) { + // hosts and days shouldn't have a value for the date column. + // Actually, you could argue this point, but looking at the + // results, seeing the most recently visited date is not what + // I expect, and gives me no information I know how to use. + // Only show this for URI-based items. + return ""; + } + + return this._convertPRTimeToString(nodeTime); + case this.COLUMN_TYPE_VISITCOUNT: + return node.accessCount; + case this.COLUMN_TYPE_KEYWORD: + if (PlacesUtils.nodeIsBookmark(node)) + return PlacesUtils.bookmarks.getKeywordForBookmark(node.itemId); + return ""; + case this.COLUMN_TYPE_DESCRIPTION: + if (node.itemId != -1) { + try { + return PlacesUtils.annotations. + getItemAnnotation(node.itemId, PlacesUIUtils.DESCRIPTION_ANNO); + } + catch (ex) { /* has no description */ } + } + return ""; + case this.COLUMN_TYPE_DATEADDED: + if (node.dateAdded) + return this._convertPRTimeToString(node.dateAdded); + return ""; + case this.COLUMN_TYPE_LASTMODIFIED: + if (node.lastModified) + return this._convertPRTimeToString(node.lastModified); + return ""; + case this.COLUMN_TYPE_PARENTFOLDER: + if (PlacesUtils.nodeIsQuery(node.parent) && + PlacesUtils.asQuery(node.parent).queryOptions.queryType == + Components.interfaces.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY && node.uri) + return ""; + var bmsvc = Components.classes["@mozilla.org/browser/nav-bookmarks-service;1"]. + getService(Components.interfaces.nsINavBookmarksService); + var rowId = node.itemId; + try { + var parentFolderId = bmsvc.getFolderIdForItem(rowId); + var folderTitle = bmsvc.getItemTitle(parentFolderId); + } catch(ex) { + var folderTitle = ""; + } + return folderTitle; + case this.COLUMN_TYPE_PARENTFOLDERPATH: + if (PlacesUtils.nodeIsQuery(node.parent) && + PlacesUtils.asQuery(node.parent).queryOptions.queryType == + Components.interfaces.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY && node.uri) + return ""; + var bmsvc = Components.classes["@mozilla.org/browser/nav-bookmarks-service;1"]. + getService(Components.interfaces.nsINavBookmarksService); + var rowId = node.itemId; + try { + var FolderId; + var parentFolderId = bmsvc.getFolderIdForItem(rowId); + var folderTitle = bmsvc.getItemTitle(parentFolderId); + while ((FolderId = bmsvc.getFolderIdForItem(parentFolderId))) { + if (FolderId == parentFolderId) + break; + parentFolderId = FolderId; + var text = bmsvc.getItemTitle(parentFolderId); + if (!text) + break; + folderTitle = text + " /"+ folderTitle; + } + folderTitle = folderTitle.replace(/^\s/,""); + } catch(ex) { + var folderTitle = ""; + } + return folderTitle; + } + return ""; + }, + + setTree: function(aTree) { + // If we are replacing the tree during a batch, there is a concrete risk + // that the treeView goes out of sync, thus it's safer to end the batch now. + // This is a no-op if we are not batching. + this.batching(false); + + let hasOldTree = this._tree != null; + this._tree = aTree; + + if (this._result) { + if (hasOldTree) { + // detach from result when we are detaching from the tree. + // This breaks the reference cycle between us and the result. + if (!aTree) { + this._result.removeObserver(this); + this._rootNode.containerOpen = false; + } + } + if (aTree) + this._finishInit(); + } + }, + + toggleOpenState: function(aRow) { + if (!this._result) + throw Cr.NS_ERROR_UNEXPECTED; + + let node = this._rows[aRow]; + if (this._flatList && this._openContainerCallback) { + this._openContainerCallback(node); + return; + } + + // Persist containers open status, but never persist livemarks. + if (!this._controller.hasCachedLivemarkInfo(node)) { + let resource = this._getResourceForNode(node); + if (resource) { + const openLiteral = PlacesUIUtils.RDF.GetResource("http://home.netscape.com/NC-rdf#open"); + const trueLiteral = PlacesUIUtils.RDF.GetLiteral("true"); + + if (node.containerOpen) + PlacesUIUtils.localStore.Unassert(resource, openLiteral, trueLiteral); + else + PlacesUIUtils.localStore.Assert(resource, openLiteral, trueLiteral, true); + } + } + + node.containerOpen = !node.containerOpen; + }, + + cycleHeader: function(aColumn) { + if (!this._result) + throw Cr.NS_ERROR_UNEXPECTED; + + // Sometimes you want a tri-state sorting, and sometimes you don't. This + // rule allows tri-state sorting when the root node is a folder. This will + // catch the most common cases. When you are looking at folders, you want + // the third state to reset the sorting to the natural bookmark order. When + // you are looking at history, that third state has no meaning so we try + // to disallow it. + // + // The problem occurs when you have a query that results in bookmark + // folders. One example of this is the subscriptions view. In these cases, + // this rule doesn't allow you to sort those sub-folders by their natural + // order. + let allowTriState = PlacesUtils.nodeIsFolder(this._result.root); + + let oldSort = this._result.sortingMode; + let oldSortingAnnotation = this._result.sortingAnnotation; + let newSort; + let newSortingAnnotation = ""; + const NHQO = Ci.nsINavHistoryQueryOptions; + switch (this._getColumnType(aColumn)) { + case this.COLUMN_TYPE_TITLE: + if (oldSort == NHQO.SORT_BY_TITLE_ASCENDING) + newSort = NHQO.SORT_BY_TITLE_DESCENDING; + else if (allowTriState && oldSort == NHQO.SORT_BY_TITLE_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_TITLE_ASCENDING; + + break; + case this.COLUMN_TYPE_URI: + if (oldSort == NHQO.SORT_BY_URI_ASCENDING) + newSort = NHQO.SORT_BY_URI_DESCENDING; + else if (allowTriState && oldSort == NHQO.SORT_BY_URI_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_URI_ASCENDING; + + break; + case this.COLUMN_TYPE_DATE: + if (oldSort == NHQO.SORT_BY_DATE_ASCENDING) + newSort = NHQO.SORT_BY_DATE_DESCENDING; + else if (allowTriState && + oldSort == NHQO.SORT_BY_DATE_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_DATE_ASCENDING; + + break; + case this.COLUMN_TYPE_VISITCOUNT: + // visit count default is unusual because we sort by descending + // by default because you are most likely to be looking for + // highly visited sites when you click it + if (oldSort == NHQO.SORT_BY_VISITCOUNT_DESCENDING) + newSort = NHQO.SORT_BY_VISITCOUNT_ASCENDING; + else if (allowTriState && oldSort == NHQO.SORT_BY_VISITCOUNT_ASCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_VISITCOUNT_DESCENDING; + + break; + case this.COLUMN_TYPE_KEYWORD: + if (oldSort == NHQO.SORT_BY_KEYWORD_ASCENDING) + newSort = NHQO.SORT_BY_KEYWORD_DESCENDING; + else if (allowTriState && oldSort == NHQO.SORT_BY_KEYWORD_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_KEYWORD_ASCENDING; + + break; + case this.COLUMN_TYPE_DESCRIPTION: + if (oldSort == NHQO.SORT_BY_ANNOTATION_ASCENDING && + oldSortingAnnotation == PlacesUIUtils.DESCRIPTION_ANNO) { + newSort = NHQO.SORT_BY_ANNOTATION_DESCENDING; + newSortingAnnotation = PlacesUIUtils.DESCRIPTION_ANNO; + } + else if (allowTriState && + oldSort == NHQO.SORT_BY_ANNOTATION_DESCENDING && + oldSortingAnnotation == PlacesUIUtils.DESCRIPTION_ANNO) + newSort = NHQO.SORT_BY_NONE; + else { + newSort = NHQO.SORT_BY_ANNOTATION_ASCENDING; + newSortingAnnotation = PlacesUIUtils.DESCRIPTION_ANNO; + } + + break; + case this.COLUMN_TYPE_DATEADDED: + if (oldSort == NHQO.SORT_BY_DATEADDED_ASCENDING) + newSort = NHQO.SORT_BY_DATEADDED_DESCENDING; + else if (allowTriState && + oldSort == NHQO.SORT_BY_DATEADDED_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_DATEADDED_ASCENDING; + + break; + case this.COLUMN_TYPE_LASTMODIFIED: + if (oldSort == NHQO.SORT_BY_LASTMODIFIED_ASCENDING) + newSort = NHQO.SORT_BY_LASTMODIFIED_DESCENDING; + else if (allowTriState && + oldSort == NHQO.SORT_BY_LASTMODIFIED_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_LASTMODIFIED_ASCENDING; + + break; + case this.COLUMN_TYPE_TAGS: + if (oldSort == NHQO.SORT_BY_TAGS_ASCENDING) + newSort = NHQO.SORT_BY_TAGS_DESCENDING; + else if (allowTriState && oldSort == NHQO.SORT_BY_TAGS_DESCENDING) + newSort = NHQO.SORT_BY_NONE; + else + newSort = NHQO.SORT_BY_TAGS_ASCENDING; + + break; + case this.COLUMN_TYPE_PARENTFOLDER: + return; + + break; + case this.COLUMN_TYPE_PARENTFOLDERPATH: + return; + + break; + default: + throw Cr.NS_ERROR_INVALID_ARG; + } + this._result.sortingAnnotation = newSortingAnnotation; + this._result.sortingMode = newSort; + }, + + isEditable: function(aRow, aColumn) { + // At this point we only support editing the title field. + if (aColumn.index != 0) + return false; + + let node = this._rows[aRow]; + if (!node) { + Cu.reportError("isEditable called for an unbuilt row."); + return false; + } + let itemId = node.itemId; + + // Only bookmark-nodes are editable. Fortunately, this check also takes + // care of livemark children. + if (itemId == -1) + return false; + + // The following items are also not editable, even though they are bookmark + // items. + // * places-roots + // * the left pane special folders and queries (those are place: uri + // bookmarks) + // * separators + // + // Note that concrete itemIds aren't used intentionally. For example, we + // have no reason to disallow renaming a shortcut to the Bookmarks Toolbar, + // except for the one under All Bookmarks. + if (PlacesUtils.nodeIsSeparator(node) || PlacesUtils.isRootItem(itemId)) + return false; + + let parentId = PlacesUtils.getConcreteItemId(node.parent); + if (parentId == PlacesUIUtils.leftPaneFolderId || + parentId == PlacesUIUtils.allBookmarksFolderId) { + // Note that the for the time being this is the check that actually + // blocks renaming places "roots", and not the isRootItem check above. + // That's because places root are only exposed through folder shortcuts + // descendants of the left pane folder. + return false; + } + + return true; + }, + + setCellText: function(aRow, aColumn, aText) { + // We may only get here if the cell is editable. + let node = this._rows[aRow]; + if (node.title != aText) { + let txn = new PlacesEditItemTitleTransaction(node.itemId, aText); + PlacesUtils.transactionManager.doTransaction(txn); + } + }, + + toggleCutNode: function(aNode, aValue) { + let currentVal = this._cuttingNodes.has(aNode); + if (currentVal != aValue) { + if (aValue) + this._cuttingNodes.add(aNode); + else + this._cuttingNodes.delete(aNode); + + this._invalidateCellValue(aNode, this.COLUMN_TYPE_TITLE); + } + }, + + selectionChanged: function() { }, + cycleCell: function(aRow, aColumn) { }, + isSelectable: function(aRow, aColumn) { return false; }, + performAction: function(aAction) { }, + performActionOnRow: function(aAction, aRow) { }, + performActionOnCell: function(aAction, aRow, aColumn) { } +}; |