pjs/xpfe/components/directory/directory.js

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JavaScript
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/* -*- Mode: Java; tab-width: 4; c-basic-offset: 4; -*-
*
* 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):
*/
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/*
Script for the directory window
*/
// By the time this runs, The 'HTTPIndex' variable will have been
// magically set on the global object by the native code.
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function debug(msg)
{
// Uncomment to print out debug info.
//dump(msg);
}
function Init()
{
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debug("directory.js: Init()\n");
// Add the HTTPIndex datasource into the tree
var tree = document.getElementById('tree');
tree.database.AddDataSource(HTTPIndex.DataSource);
// Initialize the tree's base URL to whatever the HTTPIndex is rooted at
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debug("base URL = " + HTTPIndex.BaseURL + "\n");
tree.setAttribute('ref', HTTPIndex.BaseURL);
}
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function OnClick(event)
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{
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debug('OnClick()\n');
// This'll be set to 'twisty' on the twisty icon, and 'filename'
// if they're over the filename link.
var targetclass = event.target.getAttribute('class');
debug('targetclass = ' + targetclass + '\n');
if (targetclass == 'twisty') {
// The twisty is nested three below the treeitem:
// <treeitem>
// <treerow>
// <treecell>
// <titledbutton class="twisty"> <!-- anonymous -->
var treeitem = event.target.parentNode.parentNode.parentNode;
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ToggleOpenState(treeitem);
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}
else {
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// The click'll have hit a cell, which is nested two below the
// treeitem.
var treeitem = event.target.parentNode.parentNode;
// This'll be set to 'FILE' for files and 'DIRECTORY' for
// directories.
var type = treeitem.getAttribute('type');
if (targetclass == 'filename') {
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var url = treeitem.getAttribute('id');
debug('navigating to ' + url + '\n');
window.content.location.href = url;
}
}
}
function OnDblClick(event)
{
debug('OnDblClick()\n');
// This'll be set to 'filename' if they're over the filename link.
var targetclass = event.target.getAttribute('class');
// This'll be the treeitem that got the event
var treeitem = event.target.parentNode.parentNode;
// This'll be set to 'FILE' for files and 'DIRECTORY' for
// directories.
var type = treeitem.getAttribute('type');
if (targetclass == 'filename' && type == 'DIRECTORY') {
ToggleOpenState(treeitem);
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}
}
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function ToggleOpenState(treeitem)
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{
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debug('ToggleOpenState(' + treeitem.tagName + ')');
if (treeitem.getAttribute('open') == 'true') {
var url = treeitem.getAttribute('id');
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if (!Read[url]) {
treeitem.setAttribute('loading', 'true');
ReadDirectory(url);
Read[url] = true;
}
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}
}
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// This array contains the URL of each directory we've read, so that
// we don't load a directory into the datasource >1 time.
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var Read = new Array();
function ReadDirectory(url)
{
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debug('ReadDirectory(' + url + ')\n');
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var ios = Components.classes['component://netscape/network/io-service'].getService();
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ios = ios.QueryInterface(Components.interfaces.nsIIOService);
var uri = ios.newURI(url, null);
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// Create a channel...
var channel = ios.newChannelFromURI('load', uri, null, null,
Components.interfaces.nsIChannel.LOAD_NORMAL,
null, 0, 0);
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// ...so that we can pipe it into a new HTTPIndex listener to
// parse the directory's contents.
channel.asyncRead(0, -1, null, HTTPIndex.CreateListener());
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}
// We need this hack because we've completely circumvented the onload() logic.
function Boot()
{
if (document.getElementById('tree')) {
Init();
}
else {
setTimeout("Boot()", 500);
}
}
setTimeout("Boot()", 0);
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function doSort(sortColName)
{
var node = document.getElementById(sortColName);
if (!node) return(false);
// determine column resource to sort on
var sortResource = node.getAttribute('resource');
// switch between ascending & descending sort (no natural order support)
var sortDirection="ascending";
var isSortActive = node.getAttribute('sortActive');
if (isSortActive == "true")
{
var currentDirection = node.getAttribute('sortDirection');
if (currentDirection == "ascending")
{
sortDirection = "descending";
}
}
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);
xulSortService.Sort(node, sortResource, sortDirection);
return(false);
}