danm%netscape.com 70cc20384f use preference for browser chrome url (aka navigator.xul). bug 31867
git-svn-id: svn://10.0.0.236/trunk@67173 18797224-902f-48f8-a5cc-f745e15eee43
2000-04-26 02:25:28 +00:00

955 lines
28 KiB
JavaScript

/* -*- Mode: Java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
function debug(msg)
{
// uncomment for noise
// dump(msg+"\n");
}
function copySelectionToClipboard()
{
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
var select_list = treeNode.selectedItems;
if (!select_list) return(false);
if (select_list.length < 1) return(false);
debug("# of Nodes selected: " + select_list.length + "\n");
var RDF = Components.classes["component://netscape/rdf/rdf-service"].getService();
RDF = RDF.QueryInterface(Components.interfaces.nsIRDFService);
if (!RDF) return(false);
var Bookmarks = RDF.GetDataSource("rdf:bookmarks");
if (!Bookmarks) return(false);
var nameRes = RDF.GetResource("http://home.netscape.com/NC-rdf#Name");
if (!nameRes) return(false);
// build a url that encodes all the select nodes as well as their parent nodes
var url="";
var text="";
var html="";
for (var nodeIndex=0; nodeIndex<select_list.length; nodeIndex++)
{
var node = select_list[nodeIndex];
if (!node) continue;
var ID = getAbsoluteID("bookmarksTree", node);
if (!ID) continue;
var IDRes = RDF.GetResource(ID);
if (!IDRes) continue;
var nameNode = Bookmarks.GetTarget(IDRes, nameRes, true);
var theName = "";
if (nameNode) nameNode = nameNode.QueryInterface(Components.interfaces.nsIRDFLiteral);
if (nameNode) theName = nameNode.Value;
debug("Node " + nodeIndex + ": " + ID + " name: " + theName);
url += "ID:{" + ID + "};";
url += "NAME:{" + theName + "};";
var isContainerFlag = node.getAttribute("container") == "true" ? true:false;
if (isContainerFlag == false)
{
var type = node.getAttribute("type");
if (type == "http://home.netscape.com/NC-rdf#BookmarkSeparator")
{
// Note: can't encode separators in text, just html
html += "<hr><p>";
}
else
{
text += ID + "\r";
html += "<a href='" + ID + "'>";
if (theName != "")
{
html += theName;
}
html += "</a><p>";
}
}
}
if (url == "") return(false);
debug("Copy URL: " + url);
// get some useful components
var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
if ( !trans ) return(false);
var clip = Components.classes["component://netscape/widget/clipboard"].createInstance();
if ( clip ) clip = clip.QueryInterface(Components.interfaces.nsIClipboard);
if (!clip) return(false);
clip.emptyClipboard();
// save bookmark's ID
trans.addDataFlavor("moz/bookmarkclipboarditem");
var data = Components.classes["component://netscape/supports-wstring"].createInstance();
if ( data ) data = data.QueryInterface(Components.interfaces.nsISupportsWString);
if (!data) return(false);
data.data = url;
trans.setTransferData ( "moz/bookmarkclipboarditem", data, url.length*2 ); // double byte data
if (text != "")
{
trans.addDataFlavor("text/unicode");
var textData = Components.classes["component://netscape/supports-wstring"].createInstance();
if ( textData ) textData = textData.QueryInterface(Components.interfaces.nsISupportsWString);
if (!textData) return(false);
textData.data = text;
trans.setTransferData ( "text/unicode", textData, text.length*2 ); // double byte data
}
if (html != "")
{
trans.addDataFlavor("text/html");
var htmlData = Components.classes["component://netscape/supports-wstring"].createInstance();
if ( htmlData ) htmlData = htmlData.QueryInterface(Components.interfaces.nsISupportsWString);
if (!htmlData) return(false);
htmlData.data = html;
trans.setTransferData ( "text/html", htmlData, html.length*2 ); // double byte data
}
clip.setData(trans, null, Components.interfaces.nsIClipboard.kGlobalClipboard);
return(true);
}
function doCut()
{
if (copySelectionToClipboard() == true)
{
doDelete(false);
}
return(true);
}
function doCopy()
{
copySelectionToClipboard();
return(true);
}
function doPaste()
{
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
var select_list = treeNode.selectedItems;
if (!select_list) return(false);
if (select_list.length != 1) return(false);
var pasteNodeID = select_list[0].getAttribute("id");
debug("Paste onto " + pasteNodeID);
var isContainerFlag = select_list[0].getAttribute("container") == "true" ? true:false;
debug("Container status: " + ((isContainerFlag) ? "true" : "false"));
var clip = Components.classes["component://netscape/widget/clipboard"].createInstance();
if ( clip ) clip = clip.QueryInterface(Components.interfaces.nsIClipboard);
if (!clip) return(false);
var trans = Components.classes["component://netscape/widget/transferable"].createInstance();
if ( trans ) trans = trans.QueryInterface(Components.interfaces.nsITransferable);
if ( !trans ) return(false);
trans.addDataFlavor("moz/bookmarkclipboarditem");
clip.getData(trans, Components.interfaces.nsIClipboard.kGlobalClipboard);
var data = new Object();
var dataLen = new Object();
trans.getTransferData("moz/bookmarkclipboarditem", data, dataLen);
if (data) data = data.value.QueryInterface(Components.interfaces.nsISupportsWString);
var url=null;
if (data) url = data.data.substring(0, dataLen.value / 2); // double byte data
if (!url) return(false);
var strings = url.split(";");
if (!strings) return(false);
var RDF = Components.classes["component://netscape/rdf/rdf-service"].getService();
RDF = RDF.QueryInterface(Components.interfaces.nsIRDFService);
if (!RDF) return(false);
var RDFC = Components.classes["component://netscape/rdf/container"].getService();
RDFC = RDFC.QueryInterface(Components.interfaces.nsIRDFContainer);
if (!RDFC) return(false);
var Bookmarks = RDF.GetDataSource("rdf:bookmarks");
if (!Bookmarks) return(false);
var nameRes = RDF.GetResource("http://home.netscape.com/NC-rdf#Name");
if (!nameRes) return(false);
pasteNodeRes = RDF.GetResource(pasteNodeID);
if (!pasteNodeRes) return(false);
var pasteContainerRes = null;
var pasteNodeIndex = -1;
if (isContainerFlag == true)
{
pasteContainerRes = pasteNodeRes;
}
else
{
var parID = select_list[0].parentNode.parentNode.getAttribute("ref");
if (!parID) parID = select_list[0].parentNode.parentNode.getAttribute("id");
if (!parID) return(false);
pasteContainerRes = RDF.GetResource(parID);
if (!pasteContainerRes) return(false);
}
RDFC.Init(Bookmarks, pasteContainerRes);
debug("Inited RDFC");
if (isContainerFlag == false)
{
pasteNodeIndex = RDFC.IndexOf(pasteNodeRes);
if (pasteNodeIndex < 0) return(false); // how did that happen?
}
debug("Loop over strings");
var dirty = false;
for (var x=0; x<strings.length; x=x+2)
{
var theID = strings[x];
var theName = strings[x+1];
if ((theID.indexOf("ID:{") == 0) && (theName.indexOf("NAME:{") == 0))
{
theID = theID.substr(4, theID.length-5);
theName = theName.substr(6, theName.length-7);
debug("Paste ID: " + theID + " NAME: " + theName);
var IDRes = RDF.GetResource(theID);
if (!IDRes) continue;
if (RDFC.IndexOf(IDRes) > 0)
{
debug("Unable to add ID:'" + theID + "' as its already in this folder.\n");
continue;
}
if (theName != "")
{
var NameLiteral = RDF.GetLiteral(theName);
if (NameLiteral)
{
Bookmarks.Assert(IDRes, nameRes, NameLiteral, true);
dirty = true;
}
}
if (isContainerFlag == true)
{
RDFC.AppendElement(IDRes);
debug("Appended node onto end of container");
}
else
{
RDFC.InsertElementAt(IDRes, pasteNodeIndex++, true);
debug("Pasted at index # " + pasteNodeIndex);
}
dirty = true;
}
}
if (dirty == true)
{
var remote = Bookmarks.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource);
if (remote)
{
remote.Flush();
debug("Wrote out bookmark changes.");
}
}
return(true);
}
function doDelete(promptFlag)
{
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
var select_list = treeNode.selectedItems;
if (!select_list) return(false);
if (select_list.length < 1) return(false);
debug("# of Nodes selected: " + select_list.length);
if (promptFlag == true)
{
var bundle = srGetStrBundle("chrome://communicator/locale/bookmarks/bookmark.properties");
var deleteStr = bundle.GetStringFromName("DeleteItems");
var ok = confirm(deleteStr);
if (!ok) return(false);
}
var RDF = Components.classes["component://netscape/rdf/rdf-service"].getService();
RDF = RDF.QueryInterface(Components.interfaces.nsIRDFService);
if (!RDF) return(false);
var RDFC = Components.classes["component://netscape/rdf/container"].getService();
RDFC = RDFC.QueryInterface(Components.interfaces.nsIRDFContainer);
if (!RDFC) return(false);
var Bookmarks = RDF.GetDataSource("rdf:bookmarks");
if (!Bookmarks) return(false);
var dirty = false;
// note: backwards delete so that we handle odd deletion cases such as
// deleting a child of a folder as well as the folder itself
for (var nodeIndex=select_list.length-1; nodeIndex>=0; nodeIndex--)
{
var node = select_list[nodeIndex];
if (!node) continue;
var ID = node.getAttribute("id");
if (!ID) continue;
// don't allow deletion of various "special" folders
if ((ID == "NC:BookmarksRoot") || (ID == "NC:IEFavoritesRoot"))
{
continue;
}
var parentID = node.parentNode.parentNode.getAttribute("ref");
if (!parentID) parentID = node.parentNode.parentNode.getAttribute("id");
if (!parentID) continue;
debug("Node " + nodeIndex + ": " + ID);
debug("Parent Node " + nodeIndex + ": " + parentID);
var IDRes = RDF.GetResource(ID);
if (!IDRes) continue;
var parentIDRes = RDF.GetResource(parentID);
if (!parentIDRes) continue;
RDFC.Init(Bookmarks, parentIDRes);
RDFC.RemoveElement(IDRes, true);
dirty = true;
}
if (dirty == true)
{
var remote = Bookmarks.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource);
if (remote)
{
remote.Flush();
debug("Wrote out bookmark changes.");
}
}
return(true);
}
function doSelectAll()
{
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
treeNode.selectAll();
return(true);
}
function doUnload()
{
// Get the current window position/size.
var x = window.screenX;
var y = window.screenY;
var h = window.outerHeight;
var w = window.outerWidth;
// Store these into the window attributes (for persistence).
var win = document.getElementById( "bookmark-window" );
win.setAttribute( "x", x );
win.setAttribute( "y", y );
win.setAttribute( "height", h );
win.setAttribute( "width", w );
}
function BookmarkProperties()
{
var treeNode = document.getElementById('bookmarksTree');
var select_list = treeNode.selectedItems;
if (select_list.length >= 1)
{
// don't bother showing properties on bookmark separators
var type = select_list[0].getAttribute('type');
if (type != "http://home.netscape.com/NC-rdf#BookmarkSeparator")
{
window.openDialog("chrome://communicator/content/bookmarks/bm-props.xul",
"_blank", "centerscreen,chrome,menubar",
select_list[0].getAttribute("id"));
}
}
return(true);
}
function OpenBookmarksFind()
{
window.openDialog("chrome://communicator/content/bookmarks/bm-find.xul", "FindBookmarksWindow", "centerscreen,dialog=no,close,chrome,resizable");
return(true);
}
function getAbsoluteID(root, node)
{
var url = node.getAttribute("ref");
if ((url == null) || (url == ""))
{
url = node.getAttribute("id");
}
try
{
var rootNode = document.getElementById(root);
var ds = null;
if (rootNode)
{
ds = rootNode.database;
}
// add support for anonymous resources such as Internet Search results,
// IE favorites under Win32, and NetPositive URLs under BeOS
var rdf = Components.classes["component://netscape/rdf/rdf-service"].getService();
if (rdf) rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
if (rdf && ds)
{
var src = rdf.GetResource(url, true);
var prop = rdf.GetResource("http://home.netscape.com/NC-rdf#URL", true);
var target = ds.GetTarget(src, prop, true);
if (target) target = target.QueryInterface(Components.interfaces.nsIRDFLiteral);
if (target) target = target.Value;
if (target) url = target;
}
}
catch(ex)
{
}
return(url);
}
function OpenURL(event, node, root)
{
if ((event.button != 1) || (event.clickCount != 2) || (node.nodeName != "treeitem"))
return(false);
if (node.getAttribute("container") == "true")
return(false);
var url = getAbsoluteID(root, node);
// Ignore "NC:" urls.
if (url.substring(0, 3) == "NC:")
return(false);
// get right sized window
window.openDialog( getBrowserURL(), "_blank", "chrome,all,dialog=no", url );
return(true);
}
function doSort(sortColName)
{
var node = document.getElementById(sortColName);
// determine column resource to sort on
var sortResource = node.getAttribute('resource');
if (!node) return(false);
var sortDirection="ascending";
var isSortActive = node.getAttribute('sortActive');
if (isSortActive == "true")
{
var currentDirection = node.getAttribute('sortDirection');
if (currentDirection == "ascending")
sortDirection = "descending";
else if (currentDirection == "descending")
sortDirection = "natural";
else sortDirection = "ascending";
}
var isupports = Components.classes["component://netscape/rdf/xul-sort-service"].getService();
if (!isupports) return(false);
var xulSortService = isupports.QueryInterface(Components.interfaces.nsIXULSortService);
if (!xulSortService) return(false);
try
{
xulSortService.Sort(node, sortResource, sortDirection);
}
catch(ex)
{
debug("Exception calling xulSortService.Sort()");
}
return(false);
}
function fillContextMenu(name)
{
if (!name) return(false);
var popupNode = document.getElementById(name);
if (!popupNode) return(false);
// remove the menu node (which tosses all of its kids);
// do this in case any old command nodes are hanging around
while (popupNode.childNodes.length)
{
popupNode.removeChild(popupNode.childNodes[0]);
}
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
var db = treeNode.database;
if (!db) return(false);
var compositeDB = db.QueryInterface(Components.interfaces.nsIRDFDataSource);
if (!compositeDB) return(false);
var isupports = Components.classes["component://netscape/rdf/rdf-service"].getService();
if (!isupports) return(false);
var rdf = isupports.QueryInterface(Components.interfaces.nsIRDFService);
if (!rdf) return(false);
var target_item = document.popupNode.parentNode.parentNode;
if (target_item && target_item.nodeName == "treeitem")
{
if (target_item.getAttribute('selected') != 'true') {
treeNode.selectItem(target_item);
}
}
var select_list = treeNode.selectedItems;
debug("# of Nodes selected: " + treeNode.selectedItems.length + "\n");
var separatorResource = rdf.GetResource("http://home.netscape.com/NC-rdf#BookmarkSeparator");
if (!separatorResource) return(false);
// perform intersection of commands over selected nodes
var cmdArray = new Array();
var selectLength = select_list.length;
if (selectLength == 0) selectLength = 1;
for (var nodeIndex=0; nodeIndex < selectLength; nodeIndex++)
{
var id = null;
// if nothing is selected, get commands for the "ref" of the bookmarks root
if (select_list.length == 0)
{
id = treeNode.getAttribute("ref");
if (!id) break;
}
else
{
var node = select_list[nodeIndex];
if (!node) break;
id = node.getAttribute("id");
if (!id) break;
}
var rdfNode = rdf.GetResource(id);
if (!rdfNode) break;
var cmdEnum = db.GetAllCmds(rdfNode);
if (!cmdEnum) break;
var nextCmdArray = new Array();
while (cmdEnum.HasMoreElements())
{
var cmd = cmdEnum.GetNext();
if (!cmd) break;
if (nodeIndex == 0)
{
cmdArray[cmdArray.length] = cmd;
}
else
{
nextCmdArray[cmdArray.length] = cmd;
}
}
if (nodeIndex > 0)
{
// perform command intersection calculation
for (var cmdIndex = 0; cmdIndex < cmdArray.length; cmdIndex++)
{
var cmdFound = false;
for (var nextCmdIndex = 0; nextCmdIndex < nextCmdArray.length; nextCmdIndex++)
{
if (nextCmdArray[nextCmdIndex] == cmdArray[cmdIndex])
{
cmdFound = true;
break;
}
}
if ((cmdFound == false) && (cmdArray[cmdIndex]))
{
var cmdResource = cmdArray[cmdIndex].QueryInterface(Components.interfaces.nsIRDFResource);
if ((cmdResource) && (cmdResource != separatorResource))
{
cmdArray[cmdIndex] = null;
}
}
}
}
}
// need a resource to ask RDF for each command's name
var rdfNameResource = rdf.GetResource("http://home.netscape.com/NC-rdf#Name");
if (!rdfNameResource) return(false);
/*
// build up menu items
if (cmdArray.length < 1) return(false);
*/
var lastWasSep = false;
for (var cmdIndex = 0; cmdIndex < cmdArray.length; cmdIndex++)
{
var cmd = cmdArray[cmdIndex];
if (!cmd) continue;
var cmdResource = cmd.QueryInterface(Components.interfaces.nsIRDFResource);
if (!cmdResource) break;
// handle separators
if (cmdResource == separatorResource)
{
if (lastWasSep != true)
{
lastWasSep = true;
var menuItem = document.createElement("menuseparator");
popupNode.appendChild(menuItem);
}
continue;
}
lastWasSep = false;
var cmdNameNode = compositeDB.GetTarget(cmdResource, rdfNameResource, true);
if (!cmdNameNode) break;
cmdNameLiteral = cmdNameNode.QueryInterface(Components.interfaces.nsIRDFLiteral);
if (!cmdNameLiteral) break;
cmdName = cmdNameLiteral.Value;
if (!cmdName) break;
debug("Command #" + cmdIndex + ": id='" + cmdResource.Value + "' name='" + cmdName + "'");
var menuItem = document.createElement("menuitem");
menuItem.setAttribute("value", cmdName);
popupNode.appendChild(menuItem);
// work around bug # 26402 by setting "oncommand" attribute AFTER appending menuitem
menuItem.setAttribute("oncommand", "return doContextCmd('" + cmdResource.Value + "');");
}
// strip off leading/trailing menuseparators
while (popupNode.childNodes.length > 0)
{
if (popupNode.childNodes[0].tagName != "menuseparator")
break;
popupNode.removeChild(popupNode.childNodes[0]);
}
while (popupNode.childNodes.length > 0)
{
if (popupNode.childNodes[popupNode.childNodes.length - 1].tagName != "menuseparator")
break;
popupNode.removeChild(popupNode.childNodes[popupNode.childNodes.length - 1]);
}
// if one and only one node is selected
if (treeNode.selectedItems.length == 1)
{
// and its a bookmark or a bookmark folder (there can be other types,
// not just separators, so check explicitly for what we allow)
var type = select_list[0].getAttribute("type");
if ((type == "http://home.netscape.com/NC-rdf#Bookmark") ||
(type == "http://home.netscape.com/NC-rdf#Folder"))
{
// then add a menu separator (if necessary)
if (popupNode.childNodes.length > 0)
{
if (popupNode.childNodes[popupNode.childNodes.length - 1].tagName != "menuseparator")
{
var menuSep = document.createElement("menuseparator");
popupNode.appendChild(menuSep);
}
}
// and then add a "Properties" menu items
var bundle = srGetStrBundle("chrome://communicator/locale/bookmarks/bookmark.properties");
var propMenuName = bundle.GetStringFromName("BookmarkProperties");
var menuItem = document.createElement("menuitem");
menuItem.setAttribute("value", propMenuName);
popupNode.appendChild(menuItem);
// work around bug # 26402 by setting "oncommand" attribute AFTER appending menuitem
menuItem.setAttribute("oncommand", "return BookmarkProperties();");
}
}
return(true);
}
const nsIFilePicker = Components.interfaces.nsIFilePicker;
function doContextCmd(cmdName)
{
debug("doContextCmd start: cmd='" + cmdName + "'");
var bundle = srGetStrBundle("chrome://communicator/locale/bookmarks/bookmark.properties");
// do some prompting/confirmation for various bookmark commands that we know about;
// if we have values to pass it, they are added to the arguments array
var nameVal = "", urlVal = "";
if (cmdName == "http://home.netscape.com/NC-rdf#command?cmd=newbookmark")
{
while (true)
{
var promptStr = bundle.GetStringFromName("NewBookmarkURLPrompt");
urlVal = prompt(promptStr, "");
if (!urlVal || urlVal=="") return(false);
// ensure we get a fully qualified URL (protocol colon address)
var colonOffset = urlVal.indexOf(":");
if (colonOffset > 0) break;
alert(bundle.GetStringFromName("NeedValidURL"));
}
promptStr = bundle.GetStringFromName("NewBookmarkNamePrompt");
nameVal = prompt(promptStr, "");
if (!nameVal || nameVal=="") return(false);
}
else if (cmdName == "http://home.netscape.com/NC-rdf#command?cmd=newfolder")
{
var promptStr = bundle.GetStringFromName("NewFolderNamePrompt");
nameVal = prompt(promptStr, "");
if (!nameVal || nameVal=="") return(false);
}
else if ((cmdName == "http://home.netscape.com/NC-rdf#command?cmd=deletebookmark") ||
(cmdName == "http://home.netscape.com/NC-rdf#command?cmd=deletebookmarkfolder") ||
(cmdName == "http://home.netscape.com/NC-rdf#command?cmd=deletebookmarkseparator"))
{
var promptStr = bundle.GetStringFromName("DeleteItems");
if (!confirm(promptStr)) return(false);
}
else if (cmdName == "http://home.netscape.com/NC-rdf#command?cmd=import")
{
try
{
var filePicker = Components.classes["component://netscape/filespecwithui"].createInstance();
if (filePicker) filePicker = filePicker.QueryInterface(Components.interfaces.nsIFileSpecWithUI);
if (!filePicker) return(false);
var promptStr = bundle.GetStringFromName("SelectImport");
filePicker.chooseInputFile(promptStr, 2, "", ""); // 2 = html filter
var filespec = filePicker.QueryInterface(Components.interfaces.nsIFileSpec);
if (!filespec) return(false);
var filename = filespec.URLString;
if ((!filename) || (filename == "")) return(false);
debug("Import: '" + filename + "'\n");
urlVal = filename;
}
catch(ex)
{
return(false);
}
}
else if (cmdName == "http://home.netscape.com/NC-rdf#command?cmd=export")
{
try
{
var filePicker = Components.classes["component://netscape/filespecwithui"].createInstance();
if (filePicker) filePicker = filePicker.QueryInterface(Components.interfaces.nsIFileSpecWithUI);
if (!filePicker) return(false);
var promptStr = bundle.GetStringFromName("EnterExport");
filePicker.chooseOutputFile(promptStr, "bookmarks.html", 2); // 2 = html filter
var filespec = filePicker.QueryInterface(Components.interfaces.nsIFileSpec);
if (!filespec) return(false);
var filename = filespec.URLString;
if ((!filename) || (filename == "")) return(false);
debug("Export: '" + filename + "'\n");
urlVal = filename;
}
catch(ex)
{
return(false);
}
}
var treeNode = document.getElementById("bookmarksTree");
if (!treeNode) return(false);
var db = treeNode.database;
if (!db) return(false);
var compositeDB = db.QueryInterface(Components.interfaces.nsIRDFDataSource);
if (!compositeDB) return(false);
var isupports = Components.classes["component://netscape/rdf/rdf-service"].getService();
if (!isupports) return(false);
var rdf = isupports.QueryInterface(Components.interfaces.nsIRDFService);
if (!rdf) return(false);
// need a resource for the command
var cmdResource = rdf.GetResource(cmdName);
if (!cmdResource) return(false);
cmdResource = cmdResource.QueryInterface(Components.interfaces.nsIRDFResource);
if (!cmdResource) return(false);
// set up selection nsISupportsArray
var selectionInstance = Components.classes["component://netscape/supports-array"].createInstance();
var selectionArray = selectionInstance.QueryInterface(Components.interfaces.nsISupportsArray);
// set up arguments nsISupportsArray
var argumentsInstance = Components.classes["component://netscape/supports-array"].createInstance();
var argumentsArray = argumentsInstance.QueryInterface(Components.interfaces.nsISupportsArray);
// get various arguments (parent, name)
var parentArc = rdf.GetResource("http://home.netscape.com/NC-rdf#parent");
if (!parentArc) return(false);
var nameArc = rdf.GetResource("http://home.netscape.com/NC-rdf#Name");
if (!nameArc) return(false);
var urlArc = rdf.GetResource("http://home.netscape.com/NC-rdf#URL");
if (!urlArc) return(false);
var select_list = treeNode.selectedItems;
debug("# of Nodes selected: " + select_list.length);
if (select_list.length < 1)
{
// if nothing is selected, default to using the "ref" on the root of the tree
var uri = treeNode.getAttribute("ref");
if (!uri || uri=="") return(false);
var rdfNode = rdf.GetResource(uri);
// add node into selection array
if (rdfNode)
{
selectionArray.AppendElement(rdfNode);
}
// add singular arguments into arguments array
if ((nameVal) && (nameVal != ""))
{
var nameLiteral = rdf.GetLiteral(nameVal);
if (!nameLiteral) return(false);
argumentsArray.AppendElement(nameArc);
argumentsArray.AppendElement(nameLiteral);
}
if ((urlVal) && (urlVal != ""))
{
var urlLiteral = rdf.GetLiteral(urlVal);
if (!urlLiteral) return(false);
argumentsArray.AppendElement(urlArc);
argumentsArray.AppendElement(urlLiteral);
}
}
else for (var nodeIndex=0; nodeIndex<select_list.length; nodeIndex++)
{
var node = select_list[nodeIndex];
if (!node) break;
var uri = node.getAttribute("ref");
if ((uri) || (uri == ""))
{
uri = node.getAttribute("id");
}
if (!uri) return(false);
var rdfNode = rdf.GetResource(uri);
if (!rdfNode) break;
// add node into selection array
selectionArray.AppendElement(rdfNode);
// get the parent's URI
var parentURI="";
var theParent = node;
while (theParent)
{
theParent = theParent.parentNode;
parentURI = theParent.getAttribute("ref");
if ((!parentURI) || (parentURI == ""))
{
parentURI = theParent.getAttribute("id");
}
if (parentURI != "") break;
}
if (parentURI == "") return(false);
var parentNode = rdf.GetResource(parentURI, true);
if (!parentNode) return(false);
// add multiple arguments into arguments array
argumentsArray.AppendElement(parentArc);
argumentsArray.AppendElement(parentNode);
if ((nameVal) && (nameVal != ""))
{
var nameLiteral = rdf.GetLiteral(nameVal);
if (!nameLiteral) return(false);
argumentsArray.AppendElement(nameArc);
argumentsArray.AppendElement(nameLiteral);
}
if ((urlVal) && (urlVal != ""))
{
var urlLiteral = rdf.GetLiteral(urlVal);
if (!urlLiteral) return(false);
argumentsArray.AppendElement(urlArc);
argumentsArray.AppendElement(urlLiteral);
}
}
// do the command
compositeDB.DoCommand( selectionArray, cmdResource, argumentsArray );
debug("doContextCmd ends.");
return(true);
}