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389 lines
10 KiB
JavaScript
389 lines
10 KiB
JavaScript
/* -*- Mode: Java; tab-width: 4; c-basic-offset: 4; -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/*
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Script for the directory window
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*/
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const RDFSERVICE_PROGID = "component://netscape/rdf/rdf-service";
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const DRAGSERVICE_PROGID = "component://netscape/widget/dragservice";
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const TRANSFERABLE_PROGID = "component://netscape/widget/transferable";
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const XULSORTSERVICE_PROGID = "component://netscape/rdf/xul-sort-service";
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const ARRAY_PROGID = "component://netscape/supports-array";
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const WSTRING_PROGID = "component://netscape/supports-wstring";
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const NC_NS = "http://home.netscape.com/NC-rdf#";
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const NC_NAME = NC_NS + "Name";
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const NC_LOADING = NC_NS + "loading";
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const nsIHTTPIndex = Components.interfaces.nsIHTTPIndex;
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const nsIDragService = Components.interfaces.nsIDragService;
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const nsITransferable = Components.interfaces.nsITransferable;
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const nsIXULSortService = Components.interfaces.nsIXULSortService;
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const nsIRDFService = Components.interfaces.nsIRDFService;
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const nsIRDFLiteral = Components.interfaces.nsIRDFLiteral;
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const nsISupportsArray = Components.interfaces.nsISupportsArray;
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const nsISupportsWString = Components.interfaces.nsISupportsWString;
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// By the time this runs, The 'HTTPIndex' variable will have been
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// magically set on the global object by the native code.
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function debug(msg)
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{
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// Uncomment to print out debug info.
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// dump(msg);
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}
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// get handle to the BrowserAppCore in the content area.
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var appCore = window._content.appCore;
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var loadingArc = null;
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var loadingLevel = 0;
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var RDF_observer = new Object;
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RDF_observer =
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{
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onAssert : function(ds, src, prop, target)
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{
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if (prop == loadingArc)
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{
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if (loadingLevel++ == 0)
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{
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SetBusyCursor(window, true);
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}
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debug("Directory: assert: loading level is " + loadingLevel + " for " + src.Value + "\n");
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}
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},
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onUnassert : function(ds, src, prop, target)
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{
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if (prop == loadingArc)
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{
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if (loadingLevel > 0)
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{
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if (--loadingLevel == 0)
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{
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SetBusyCursor(window, false);
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}
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}
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debug("Directory: unassert: loading level is " + loadingLevel + " for " + src.Value + "\n");
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}
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},
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onChange : function(ds, src, prop, old_target, new_target)
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{
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},
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onMove : function(ds, old_src, new_src, prop, target)
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{
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},
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beginUpdateBatch : function(ds)
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{
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},
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endUpdateBatch : function(ds)
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{
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}
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}
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function
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SetBusyCursor(window, enable)
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{
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if(enable == true)
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{
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window.setCursor("wait");
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debug("Directory: cursor=busy\n");
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}
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else
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{
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window.setCursor("auto");
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debug("Directory: cursor=notbusy\n");
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}
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var numFrames = window.frames.length;
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for(var i = 0; i < numFrames; i++)
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{
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SetBusyCursor(window.frames[i], enable);
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}
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}
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// We need this hack because we've completely circumvented the onload() logic.
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function Boot()
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{
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if (document.getElementById('tree')) {
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Init();
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}
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else {
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setTimeout("Boot()", 500);
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}
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}
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setTimeout("Boot()", 0);
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function Init()
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{
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debug("directory.js: Init()\n");
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var tree = document.getElementById('tree');
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// Initialize the tree's base URL to whatever the HTTPIndex is rooted at
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var baseURI = HTTPIndex.BaseURL;
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if (baseURI && (baseURI.indexOf("ftp://") == 0))
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{
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// fix bug # 37102: if its a FTP directory
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// ensure it ends with a trailing slash
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if (baseURI.substr(baseURI.length - 1) != "/")
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{
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debug("append traiing slash to FTP directory URL\n");
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baseURI += "/";
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}
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// Note: DON'T add the HTTPIndex datasource into the tree
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// for file URLs, only do it for FTP URLs; the "rdf:files"
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// datasources handles file URLs
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tree.database.AddDataSource(HTTPIndex.DataSource);
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}
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// Note: set encoding BEFORE setting "ref" (important!)
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var RDF = Components.classes[RDFSERVICE_PROGID].getService();
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if (RDF) RDF = RDF.QueryInterface(nsIRDFService);
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if (RDF)
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{
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loadingArc = RDF.GetResource(NC_LOADING, true);
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var httpDS = HTTPIndex.DataSource;
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if (httpDS) httpDS = httpDS.QueryInterface(nsIHTTPIndex);
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if (httpDS)
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{
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httpDS.encoding = "ISO-8859-1";
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// Use a default character set.
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if (window._content.defaultCharacterset)
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{
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httpDS.encoding = window._content.defaultCharacterset;
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}
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}
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}
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// set window title
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var theWindow = window._content.parentWindow;
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if (theWindow)
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{
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theWindow.title = baseURI;
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}
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tree.database.AddObserver(RDF_observer);
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debug("Directory: added observer\n");
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// root the tree (do this last)
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tree.setAttribute("ref", baseURI);
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}
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function DoUnload()
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{
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var tree = document.getElementById("tree");
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if (tree)
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{
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tree.database.RemoveObserver(RDF_observer);
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debug("Directory: removed observer\n");
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}
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}
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function OnClick(event, node)
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{
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if( event.type == "click" &&
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( event.button != 1 || event.detail != 2 || node.nodeName != "treeitem") )
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return(false);
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if( event.type == "keypress" && event.keyCode != 13 )
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return(false);
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var tree = document.getElementById("tree");
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if( tree.selectedItems.length == 1 )
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{
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var selectedItem = tree.selectedItems[0];
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var theID = selectedItem.getAttribute("id");
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//if( selectedItem.getAttribute( "type" ) == "FILE" )
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if(appCore)
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{
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// support session history (if appCore is available)
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appCore.loadUrl(theID);
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}
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else
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{
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// fallback case (if appCore isn't available)
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window._content.location.href = theID;
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}
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// set window title
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var theWindow = window._content.parentWindow;
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if (theWindow)
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{
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theWindow.title = theID;
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}
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}
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}
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function doSort(sortColName)
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{
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var node = document.getElementById(sortColName);
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if (!node) return(false);
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// determine column resource to sort on
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var sortResource = node.getAttribute('resource');
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// switch between ascending & descending sort (no natural order support)
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var sortDirection="ascending";
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var isSortActive = node.getAttribute('sortActive');
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if (isSortActive == "true")
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{
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var currentDirection = node.getAttribute('sortDirection');
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if (currentDirection == "ascending")
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{
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sortDirection = "descending";
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}
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}
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try
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{
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var isupports = Components.classes[XULSORTSERVICE_PROGID].getService();
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if (!isupports) return(false);
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var xulSortService = isupports.QueryInterface(nsIXULSortService);
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if (!xulSortService) return(false);
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xulSortService.Sort(node, sortResource, sortDirection);
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}
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catch(ex)
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{
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}
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return(false);
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}
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function BeginDragTree ( event )
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{
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var tree = document.getElementById("tree");
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if ( event.target == tree )
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return(true); // continue propagating the event
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// only <treeitem>s can be dragged out
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if ( event.target.parentNode.parentNode.tagName != "treeitem")
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return(false);
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var database = tree.database;
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if (!database) return(false);
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var RDF =
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Components.classes[RDFSERVICE_PROGID].getService(nsIRDFService);
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if (!RDF) return(false);
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var dragStarted = false;
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var trans =
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Components.classes[TRANSFERABLE_PROGID].createInstance(nsITransferable);
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if ( !trans ) return(false);
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var genData =
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Components.classes[WSTRING_PROGID].createInstance(nsISupportsWString);
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if (!genData) return(false);
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var genDataURL =
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Components.classes[WSTRING_PROGID].createInstance(nsISupportsWString);
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if (!genDataURL) return(false);
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trans.addDataFlavor("text/unicode");
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trans.addDataFlavor("moz/rdfitem");
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// ref/id (url) is on the <treeitem> which is two levels above the <treecell> which is
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// the target of the event.
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var id = event.target.parentNode.parentNode.getAttribute("ref");
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if (!id || id=="")
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{
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id = event.target.parentNode.parentNode.getAttribute("id");
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}
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var parentID = event.target.parentNode.parentNode.parentNode.parentNode.getAttribute("ref");
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if (!parentID || parentID == "")
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{
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parentID = event.target.parentNode.parentNode.parentNode.parentNode.getAttribute("id");
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}
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// if we can get node's name, append (space) name to url
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var src = RDF.GetResource(id, true);
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var prop = RDF.GetResource(NC_NAME, true);
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var target = database.GetTarget(src, prop, true);
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if (target) target = target.QueryInterface(nsIRDFLiteral);
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if (target) target = target.Value;
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if (target && (target != ""))
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{
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id = id + " " + target;
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}
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var trueID = id;
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if (parentID != null)
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{
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trueID += "\n" + parentID;
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}
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genData.data = trueID;
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genDataURL.data = id;
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trans.setTransferData ( "moz/rdfitem", genData, genData.data.length * 2); // double byte data
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trans.setTransferData ( "text/unicode", genDataURL, genDataURL.data.length * 2); // double byte data
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var transArray =
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Components.classes[ARRAY_PROGID].createInstance(nsISupportsArray);
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if ( !transArray ) return(false);
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// put it into the transferable as an |nsISupports|
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var genTrans = trans.QueryInterface(Components.interfaces.nsISupports);
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transArray.AppendElement(genTrans);
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var dragService =
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Components.classes[DRAGSERVICE_PROGID].getService(nsIDragService);
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if ( !dragService ) return(false);
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dragService.invokeDragSession ( event.target, transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
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nsIDragService.DRAGDROP_ACTION_MOVE );
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dragStarted = true;
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return(!dragStarted);
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}
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