gecko-dev/xpfe/components/directory/directory.js

186 lines
5.2 KiB
JavaScript

/* -*- Mode: Java; tab-width: 4; c-basic-offset: 4; -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
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.
function debug(msg)
{
// Uncomment to print out debug info.
//dump(msg);
}
function Init()
{
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
debug("base URL = " + HTTPIndex.BaseURL + "\n");
tree.setAttribute('ref', HTTPIndex.BaseURL);
}
function OnClick(event)
{
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>
// <box> <!-- anonymous -->
// <titledbutton class="twisty"> <!-- anonymous -->
var treeitem = event.target.parentNode.parentNode.parentNode.parentNode;
ToggleOpenState(treeitem);
}
else {
// 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' && type == 'FILE') {
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);
}
}
function ToggleOpenState(treeitem)
{
debug('ToggleOpenState(' + treeitem.tagName + ')');
if (treeitem.getAttribute('open') == 'true') {
var url = treeitem.getAttribute('id');
ReadDirectory(url);
}
}
// This array contains the URL of each directory we've read, so that
// we don't load a directory into the datasource >1 time.
var Read = new Array();
function ReadDirectory(url)
{
// Check to make sure we haven't read the directory yet...
if (Read[url])
return;
debug('ReadDirectory(' + url + ')\n');
var ios = Components.classes['component://netscape/network/net-service'].getService();
ios = ios.QueryInterface(Components.interfaces.nsIIOService);
var uri = ios.NewURI(url, null);
// Create a channel...
var channel = ios.NewChannelFromURI('load', uri, null, null);
// ...so that we can pipe it into a new HTTPIndex listener to
// parse the directory's contents.
channel.AsyncRead(0, -1, null, HTTPIndex.CreateListener());
Read[url] = true;
}
// 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);
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);
}