mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-07-08 02:10:14 +02:00
324 lines
9.2 KiB
JavaScript
324 lines
9.2 KiB
JavaScript
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Blake Ross <blaker@netscape.com> (Original Author)
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
// helper routines, for doing rdf-based cut/copy/paste/etc
|
|
// this needs to be more generic!
|
|
|
|
const nsTransferable_contractid = "@mozilla.org/widget/transferable;1";
|
|
const clipboard_contractid = "@mozilla.org/widget/clipboard;1";
|
|
const rdf_contractid = "@mozilla.org/rdf/rdf-service;1";
|
|
const supportswstring_contractid = "@mozilla.org/supports-string;1";
|
|
const rdfc_contractid = "@mozilla.org/rdf/container;1";
|
|
|
|
const nsISupportsString = Components.interfaces.nsISupportsString;
|
|
const nsIClipboard = Components.interfaces.nsIClipboard;
|
|
const nsITransferable = Components.interfaces.nsITransferable;
|
|
const nsIRDFLiteral = Components.interfaces.nsIRDFLiteral;
|
|
const nsIRDFContainer = Components.interfaces.nsIRDFContainer;
|
|
|
|
var gRDF;
|
|
var gClipboard;
|
|
|
|
function isContainer(tree, index)
|
|
{
|
|
return tree.treeBoxObject.view.isContainer(index);
|
|
}
|
|
|
|
function isContainerOpen(tree, index)
|
|
{
|
|
return tree.treeBoxObject.view.isContainerOpen(index);
|
|
}
|
|
|
|
function nsTreeController_SetTransferData(transferable, flavor, text)
|
|
{
|
|
if (!text)
|
|
return;
|
|
var textData = Components.classes[supportswstring_contractid].createInstance(nsISupportsString);
|
|
textData.data = text;
|
|
|
|
transferable.addDataFlavor(flavor);
|
|
transferable.setTransferData(flavor, textData, text.length*2);
|
|
}
|
|
|
|
function nsTreeController_copy()
|
|
{
|
|
var rangeCount = this.treeSelection.getRangeCount();
|
|
if (rangeCount < 1)
|
|
return false;
|
|
|
|
// Build a url that encodes all the select nodes
|
|
// as well as their parent nodes
|
|
var url = "";
|
|
var text = "";
|
|
var html = "";
|
|
var min = new Object();
|
|
var max = new Object();
|
|
|
|
for (var i = rangeCount - 1; i >= 0; --i) {
|
|
this.treeSelection.getRangeAt(i, min, max);
|
|
for (var k = max.value; k >= min.value; --k) {
|
|
// If one of the selected items is
|
|
// a container, ignore it.
|
|
if (isContainer(this.tree, k))
|
|
continue;
|
|
var col = this.tree.columns["URL"];
|
|
var pageUrl = this.treeView.getCellText(k, col);
|
|
col = this.tree.columns["Name"];
|
|
var pageName = this.treeView.getCellText(k, col);
|
|
|
|
url += "ID:{" + pageUrl + "};";
|
|
url += "NAME:{" + pageName + "};";
|
|
|
|
text += pageUrl + "\r";
|
|
html += "<a href='" + pageUrl + "'>";
|
|
if (pageName) html += pageName;
|
|
html += "</a><p>";
|
|
}
|
|
}
|
|
|
|
if (!url)
|
|
return false;
|
|
|
|
// get some useful components
|
|
var trans = Components.classes[nsTransferable_contractid].createInstance(nsITransferable);
|
|
|
|
if (!gClipboard)
|
|
gClipboard = Components.classes[clipboard_contractid].getService(Components.interfaces.nsIClipboard);
|
|
|
|
gClipboard.emptyClipboard(nsIClipboard.kGlobalClipboard);
|
|
|
|
this.SetTransferData(trans, "text/unicode", text);
|
|
this.SetTransferData(trans, "moz/bookmarkclipboarditem", url);
|
|
this.SetTransferData(trans, "text/html", html);
|
|
|
|
gClipboard.setData(trans, null, nsIClipboard.kGlobalClipboard);
|
|
return true;
|
|
}
|
|
|
|
function nsTreeController_cut()
|
|
{
|
|
if (this.copy()) {
|
|
this.doDelete();
|
|
return true; // copy succeeded, don't care if delete failed
|
|
}
|
|
return false; // copy failed, so did cut
|
|
}
|
|
|
|
function nsTreeController_selectAll()
|
|
{
|
|
this.treeSelection.selectAll();
|
|
}
|
|
|
|
function nsTreeController_delete()
|
|
{
|
|
var rangeCount = this.treeSelection.getRangeCount();
|
|
if (rangeCount < 1)
|
|
return false;
|
|
|
|
var datasource = this.tree.database;
|
|
var dsEnum = datasource.GetDataSources();
|
|
dsEnum.getNext();
|
|
var ds = dsEnum.getNext()
|
|
.QueryInterface(Components.interfaces.nsIRDFDataSource);
|
|
|
|
var count = this.treeSelection.count;
|
|
|
|
// XXX 9 is a random number, just looking for a sweetspot
|
|
// don't want to rebuild tree content for just a few items
|
|
if (count > 9) {
|
|
ds.beginUpdateBatch();
|
|
}
|
|
|
|
var min = new Object();
|
|
var max = new Object();
|
|
var dirty = false;
|
|
for (var i = rangeCount - 1; i >= 0; --i) {
|
|
this.treeSelection.getRangeAt(i, min, max);
|
|
for (var k = max.value; k >= min.value; --k) {
|
|
if (!gRDF)
|
|
gRDF = Components.classes[rdf_contractid].getService(Components.interfaces.nsIRDFService);
|
|
|
|
var IDRes = this.treeBuilder.getResourceAtIndex(k);
|
|
if (!IDRes)
|
|
continue;
|
|
|
|
var root = this.tree.getAttribute('ref');
|
|
var parentIDRes;
|
|
try {
|
|
parentIDRes = this.treeBuilder.getResourceAtIndex(this.treeView.getParentIndex(k));
|
|
}
|
|
catch(ex) {
|
|
parentIDRes = gRDF.GetResource(root);
|
|
}
|
|
if (!parentIDRes)
|
|
continue;
|
|
|
|
// otherwise remove the parent/child assertion then
|
|
var containment = gRDF.GetResource("http://home.netscape.com/NC-rdf#child");
|
|
ds.Unassert(parentIDRes, containment, IDRes);
|
|
dirty = true;
|
|
}
|
|
}
|
|
|
|
if (count > 9) {
|
|
ds.endUpdateBatch();
|
|
}
|
|
|
|
if (dirty) {
|
|
try {
|
|
var remote = datasource.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource);
|
|
remote.Flush();
|
|
} catch (ex) {
|
|
}
|
|
}
|
|
if (max.value) {
|
|
var newIndex = max.value - (max.value - min.value);
|
|
if (newIndex >= this.treeView.rowCount)
|
|
--newIndex;
|
|
this.treeSelection.select(newIndex);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function nsTreeController(tree)
|
|
{
|
|
this._tree = tree;
|
|
tree.controllers.appendController(this);
|
|
}
|
|
|
|
nsTreeController.prototype =
|
|
{
|
|
_treeSelection: null,
|
|
_treeView: null,
|
|
_treeBuilder: null,
|
|
_treeBoxObject: null,
|
|
_tree: null,
|
|
get tree()
|
|
{
|
|
return this._tree;
|
|
},
|
|
get treeBoxObject()
|
|
{
|
|
if (this._treeBoxObject)
|
|
return this._treeBoxObject;
|
|
return this._treeBoxObject = this.tree.treeBoxObject;
|
|
},
|
|
get treeView()
|
|
{
|
|
if (this._treeView)
|
|
return this._treeView;
|
|
return this._treeView = this.tree.treeBoxObject.view;
|
|
},
|
|
get treeSelection()
|
|
{
|
|
if (this._treeSelection)
|
|
return this._treeSelection;
|
|
return this._treeSelection = this.tree.view.selection;
|
|
},
|
|
get treeBuilder()
|
|
{
|
|
if (this._treeBuilder)
|
|
return this._treeBuilder;
|
|
return this._treeBuilder = this.tree.builder.
|
|
QueryInterface(Components.interfaces.nsIXULTreeBuilder);
|
|
},
|
|
SetTransferData : nsTreeController_SetTransferData,
|
|
|
|
supportsCommand: function(command)
|
|
{
|
|
switch(command)
|
|
{
|
|
case "cmd_cut":
|
|
case "cmd_copy":
|
|
case "cmd_delete":
|
|
case "cmd_selectAll":
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
},
|
|
|
|
isCommandEnabled: function(command)
|
|
{
|
|
var haveCommand;
|
|
switch (command)
|
|
{
|
|
// commands which do not require selection
|
|
case "cmd_selectAll":
|
|
var treeView = this.treeView;
|
|
return (treeView.rowCount != treeView.selection.count);
|
|
|
|
// these commands require selection
|
|
case "cmd_cut":
|
|
haveCommand = (this.cut != undefined);
|
|
break;
|
|
case "cmd_copy":
|
|
haveCommand = (this.copy != undefined);
|
|
break;
|
|
case "cmd_delete":
|
|
haveCommand = (this.doDelete != undefined);
|
|
break;
|
|
}
|
|
|
|
// if we get here, then we have a command that requires selection
|
|
var haveSelection = (this.treeSelection.count);
|
|
return (haveCommand && haveSelection);
|
|
},
|
|
|
|
doCommand: function(command)
|
|
{
|
|
switch(command)
|
|
{
|
|
case "cmd_cut":
|
|
return this.cut();
|
|
case "cmd_copy":
|
|
return this.copy();
|
|
case "cmd_delete":
|
|
return this.doDelete();
|
|
case "cmd_selectAll":
|
|
return this.selectAll();
|
|
}
|
|
return false;
|
|
},
|
|
copy: nsTreeController_copy,
|
|
cut: nsTreeController_cut,
|
|
doDelete: nsTreeController_delete,
|
|
selectAll: nsTreeController_selectAll
|
|
}
|
|
|