gecko-dev/suite/browser/sessionHistoryUI.js
2006-09-14 05:53:38 +00:00

207 lines
7.1 KiB
JavaScript

/* -*- Mode: Java; tab-width: 2; 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):
* Jason Eager <jce2@po.cwru.edu>
* Blake Ross <BlakeR1234@aol.com>
* Peter Annema <disttsc@bart.nl>
*
*/
const MAX_HISTORY_MENU_ITEMS = 15;
var rdf = Components.classes["@mozilla.org/rdf/rdf-service;1"].getService();
rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
var localstore = rdf.GetDataSource("rdf:localstore");
function FillHistoryMenu( aParent, aMenu )
{
// Get the content area docshell
var browserElement = document.getElementById("content");
if (browserElement)
{
var foopy = { };
var ds;
var docShell;
// Try to get docshell from appCore so that go/forward/back
// menus work right after a theme switch. If fetching from
// appCore fails use, the original method,
if (appCore) {
appCore.getContentDocShell(foopy);
ds = foopy.value;
}
if (ds) {
dump("Got docshell from appCOre\n");
docShell = ds;
}
else
docShell = browserElement.boxObject.QueryInterface(Components.interfaces.nsIBrowserBoxObject).docShell;
if (docShell) {
var webNavigation = docShell.QueryInterface(Components.interfaces.nsIWebNavigation);
if (webNavigation)
{
var shistory = webNavigation.sessionHistory;
if (shistory)
{
//Remove old entries if any
deleteHistoryItems( aParent );
var count = shistory.count;
var index = shistory.index;
var end;
var j;
var entry;
switch (aMenu)
{
case "back":
end = (index > MAX_HISTORY_MENU_ITEMS) ? index - MAX_HISTORY_MENU_ITEMS : 0;
for ( j = index - 1; j >= end; j--)
{
entry = shistory.getEntryAtIndex(j, false);
if (entry)
createMenuItem( aParent, j, entry.title );
}
break;
case "forward":
end = ((count-index) > MAX_HISTORY_MENU_ITEMS) ? index + MAX_HISTORY_MENU_ITEMS : count;
for ( j = index + 1; j < end; j++)
{
entry = shistory.getEntryAtIndex(j, false);
if (entry)
createMenuItem( aParent, j, entry.title );
}
break;
case "go":
end = count > MAX_HISTORY_MENU_ITEMS ? count - MAX_HISTORY_MENU_ITEMS : 0;
for( j = count - 1; j >= end; j-- )
{
entry = shistory.getEntryAtIndex(j, false);
if (entry)
createCheckboxMenuItem( aParent, j, entry.title, j==index );
}
break;
}
}
}
}
}
}
function executeUrlBarHistoryCommand( aTarget)
{
var index = aTarget.getAttribute("index");
var value = aTarget.getAttribute("value");
if (index != "nothing_available" && value)
{
gURLBar.value = value;
BrowserLoadURL();
}
}
function createUBHistoryMenu( aParent )
{
var ubHistory = appCore.urlbarHistory;
if (localstore) {
var entries = localstore.GetTargets(rdf.GetResource("nc:urlbar-history"),
rdf.GetResource("http://home.netscape.com/NC-rdf#child"),
true);
var i= MAX_HISTORY_MENU_ITEMS;
// Delete any old menu items only if there are legitimate
// urls to display, otherwise we want to display the
// '(Nothing Available)' item.
if (entries.hasMoreElements())
deleteHistoryItems(aParent);
while (entries.hasMoreElements() && (i-- > 0)) {
var entry = entries.getNext();
if (entry) {
entry = entry.QueryInterface(Components.interfaces.nsIRDFLiteral);
var url = entry.Value;
createMenuItem(aParent, i, url);
}
}
}
}
function addToUrlbarHistory()
{
//var ubHistory = appCore.urlbarHistory;
var urlToAdd = gURLBar.value;
if (!urlToAdd)
return;
if (localstore) {
var entries = localstore.GetTargets(rdf.GetResource("nc:urlbar-history"),
rdf.GetResource("http://home.netscape.com/NC-rdf#child"),
true);
while (entries.hasMoreElements()) {
var entry = entries.getNext();
if (entry) {
entry = entry.QueryInterface(Components.interfaces.nsIRDFLiteral);
var url = entry.Value;
if (url == urlToAdd) {
// dump("URL already in urlbar history\n");
return;
}
} //entry
} //while
//dump("Adding " + urlToAdd + "to urlbar history\n");
localstore.Assert(rdf.GetResource("nc:urlbar-history"),
rdf.GetResource("http://home.netscape.com/NC-rdf#child"),
rdf.GetLiteral(urlToAdd),
true);
} //localstore
}
function createMenuItem( aParent, aIndex, aValue)
{
var menuitem = document.createElement( "menuitem" );
menuitem.setAttribute( "value", aValue );
menuitem.setAttribute( "index", aIndex );
aParent.appendChild( menuitem );
}
function createCheckboxMenuItem( aParent, aIndex, aValue, aChecked)
{
var menuitem = document.createElement( "menuitem" );
menuitem.setAttribute( "type", "checkbox" );
menuitem.setAttribute( "value", aValue );
menuitem.setAttribute( "index", aIndex );
if (aChecked==true)
menuitem.setAttribute( "checked", "true" );
aParent.appendChild( menuitem );
}
function deleteHistoryItems( aParent )
{
var children = aParent.childNodes;
for (var i = 0; i < children.length; i++ )
{
var index = children[i].getAttribute( "index" );
if (index)
aParent.removeChild( children[i] );
}
}
function updateGoMenu(event)
{
FillHistoryMenu(event.target, "go");
}