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

325 строки
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JavaScript

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bradley Baetz <bbaetz@student.usyd.edu.au>
* Joe Hewitt <hewitt@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
Script for the directory window
*/
const RDFSERVICE_CONTRACTID = "@mozilla.org/rdf/rdf-service;1";
const DRAGSERVICE_CONTRACTID = "@mozilla.org/widget/dragservice;1";
const TRANSFERABLE_CONTRACTID = "@mozilla.org/widget/transferable;1";
const XULSORTSERVICE_CONTRACTID = "@mozilla.org/xul/xul-sort-service;1";
const ARRAY_CONTRACTID = "@mozilla.org/supports-array;1";
const WSTRING_CONTRACTID = "@mozilla.org/supports-string;1";
const NC_NS = "http://home.netscape.com/NC-rdf#";
const NC_NAME = NC_NS + "Name";
const NC_URL = NC_NS + "URL";
const NC_LOADING = NC_NS + "loading";
const nsIHTTPIndex = Components.interfaces.nsIHTTPIndex;
const nsIDragService = Components.interfaces.nsIDragService;
const nsITransferable = Components.interfaces.nsITransferable;
const nsIXULSortService = Components.interfaces.nsIXULSortService;
const nsIRDFService = Components.interfaces.nsIRDFService;
const nsIRDFLiteral = Components.interfaces.nsIRDFLiteral;
const nsISupportsArray = Components.interfaces.nsISupportsArray;
const nsISupportsString = Components.interfaces.nsISupportsString;
// 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);
}
var loadingArc = null;
var loadingLevel = 0;
var RDF_observer =
{
onAssert: function(ds, src, prop, target)
{
if (prop == loadingArc) {
if (loadingLevel++ == 0)
SetBusyCursor(window, true);
debug("Directory: assert: loading level is " + loadingLevel + " for " + src.Value + "\n");
}
},
onUnassert: function(ds, src, prop, target)
{
if (prop == loadingArc) {
if (loadingLevel > 0)
if (--loadingLevel == 0)
SetBusyCursor(window, false);
debug("Directory: unassert: loading level is " + loadingLevel + " for " + src.Value + "\n");
}
},
onChange: function(ds, src, prop, old_target, new_target) { },
onMove: function(ds, old_src, new_src, prop, target) { },
onBeginUpdateBatch: function(ds) { },
onEndUpdateBatch: function(ds) { }
};
function
SetBusyCursor(window, enable)
{
// Defensive check: setCursor() is only available for
// chrome windows. Since one of our frame might be a
// non-chrome window, make sure the window we treat has
// a setCursor method.
if("setCursor" in window) {
if(enable == true) {
window.setCursor("wait");
debug("Directory: cursor=busy\n");
} else {
window.setCursor("auto");
debug("Directory: cursor=notbusy\n");
}
}
var numFrames = window.frames.length;
for (var i = 0; i < numFrames; i++)
SetBusyCursor(window.frames[i], enable);
}
// 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 Init()
{
debug("directory.js: Init()\n");
var tree = document.getElementById('tree');
// Initialize the tree's base URL to whatever the HTTPIndex is rooted at
var baseURI = HTTPIndex.BaseURL;
if (baseURI && (baseURI.indexOf("ftp://") == 0)) {
// fix bug # 37102: if its a FTP directory
// ensure it ends with a trailing slash
if (baseURI.substr(baseURI.length - 1) != "/") {
debug("append traiing slash to FTP directory URL\n");
baseURI += "/";
}
// Lets also enable the loggin window.
var node = document.getElementById("main-splitter");
node.setAttribute("hidden", false);
node = document.getElementById("logbox");
node.setAttribute("hidden", false);
}
if (baseURI && (baseURI.indexOf("file://") != 0)) {
// Note: DON'T add the HTTPIndex datasource into the tree
// for file URLs, only do it for FTP/Gopher/etc URLs; the "rdf:files"
// datasources handles file URLs
tree.database.AddDataSource(HTTPIndex);
}
// Note: set encoding BEFORE setting "ref" (important!)
var RDF = Components.classes[RDFSERVICE_CONTRACTID].getService();
if (RDF) RDF = RDF.QueryInterface(nsIRDFService);
if (RDF) {
loadingArc = RDF.GetResource(NC_LOADING, true);
var httpDS = HTTPIndex.DataSource;
if (httpDS) httpDS = httpDS.QueryInterface(nsIHTTPIndex);
if (httpDS) {
httpDS.encoding = "ISO-8859-1";
// Use a default character set.
if (window._content.defaultCharacterset)
httpDS.encoding = window._content.defaultCharacterset;
}
}
// set window title
document.title = baseURI;
tree.database.AddObserver(RDF_observer);
debug("Directory: added observer\n");
// root the tree (do this last)
tree.setAttribute("ref", baseURI);
}
function DoUnload()
{
var tree = document.getElementById("tree");
if (tree) {
tree.database.RemoveDataSource(HTTPIndex);
tree.database.RemoveObserver(RDF_observer);
debug("Directory: removed observer\n");
}
}
function OnClick(event)
{
if (event.target.localName != "treechildren")
return false;
if( event.type == "click" && (event.button != 0 || event.detail != 2))
return false;
if( event.type == "keypress" && event.keyCode != 13)
return false;
var tree = document.getElementById("tree");
if (tree.currentIndex >= 0) {
var item = tree.contentView.getItemAtIndex(tree.currentIndex);
window._content.location.href = item.getAttributeNS(NC_NS, "url");
}
}
function doSort(aTarget)
{
if (aTarget.localName != "treecol")
return;
// determine column resource to sort on
var sortResource = aTarget.getAttribute('resource');
// switch between ascending & descending sort (no natural order support)
var sortDirection = aTarget.getAttribute("sortDirection") == "ascending" ? "descending" : "ascending";
try {
var sortService = Components.classes[XULSORTSERVICE_CONTRACTID].getService(nsIXULSortService);
sortService.sort(aTarget, sortResource, sortDirection);
} catch(ex) { }
}
function BeginDragTree (event)
{
if (event.target.localName != "treechildren")
return true;
var dragStarted = false;
try {
// determine which treeitem was dragged
var tree = document.getElementById("tree");
var row = {}, colId = {}, child = {};
tree.treeBoxObject.getCellAt(event.clientX, event.clientY, row, colId, child);
var item = tree.contentView.getItemAtIndex(row.value);
// get information from treeitem for drag
var url = item.getAttributeNS(NC_NS, "url");
var desc = item.getAttributeNS(NC_NS, "desc");
var RDF = Components.classes[RDFSERVICE_CONTRACTID].getService(nsIRDFService);
var transferable =
Components.classes[TRANSFERABLE_CONTRACTID].createInstance(nsITransferable);
var genDataURL =
Components.classes[WSTRING_CONTRACTID].createInstance(nsISupportsString);
var genDataHTML =
Components.classes[WSTRING_CONTRACTID].createInstance(nsISupportsString);
var genData =
Components.classes[WSTRING_CONTRACTID].createInstance(nsISupportsString);
var genDataURL =
Components.classes[WSTRING_CONTRACTID].createInstance(nsISupportsString);
transferable.addDataFlavor("text/x-moz-url");
transferable.addDataFlavor("text/html");
transferable.addDataFlavor("text/unicode");
genDataURL.data = url + "\n" + desc;
genDataHTML.data = "<a href=\"" + url + "\">" + desc + "</a>";
genData.data = url;
transferable.setTransferData("text/x-moz-url", genDataURL, genDataURL.data.length * 2);
transferable.setTransferData("text/html", genDataHTML, genDataHTML.data.length * 2);
transferable.setTransferData("text/unicode", genData, genData.data.length * 2);
var transArray =
Components.classes[ARRAY_CONTRACTID].createInstance(nsISupportsArray);
// put it into the transferable as an |nsISupports|
var genTrans = transferable.QueryInterface(Components.interfaces.nsISupports);
transArray.AppendElement(genTrans);
var dragService =
Components.classes[DRAGSERVICE_CONTRACTID].getService(nsIDragService);
dragService.invokeDragSession(event.target, transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
nsIDragService.DRAGDROP_ACTION_MOVE);
dragStarted = true;
} catch (ex) { }
return !dragStarted;
}
function scrollDown()
{
window.frames[0].scrollTo(0, window.frames[0].document.height);
}
function OnFTPControlLog( server, msg )
{
var logdoc = frames[0].document;
var logdocDiv = logdoc.getElementById("logboxDiv");
var div = document.createElementNS("http://www.w3.org/1999/xhtml",
"html:div");
if (server)
div.setAttribute("class", "server");
else
div.setAttribute("class", "client");
div.appendChild (document.createTextNode(msg));
logdocDiv.appendChild(div);
scrollDown();
}