releases-comm-central/editor/ui/dialogs/content/EdLinkChecker.js

235 строки
7.2 KiB
JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Akkana Peck (akkana@netscape.com)
* Charles Manxke (cmanske@netscape.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// Variables used across all the links being checked:
var gNumLinksToCheck = 0; // The number of nsILinkCheckers
var gLinksBeingChecked = []; // Array of nsIURICheckers
var gURIRefObjects = []; // Array of nsIURIRefObjects
var gNumLinksCalledBack = 0;
var gStartedAllChecks = false;
var gLinkCheckTimerID = 0;
// Implement nsIRequestObserver:
var gRequestObserver =
{
// urichecker requires that we have an OnStartRequest even tho it's a nop.
onStartRequest: function(request, ctxt) { },
// onStopRequest is where we really handle the status.
onStopRequest: function(request, ctxt, status)
{
var linkChecker = request.QueryInterface(Components.interfaces.nsIURIChecker);
if (linkChecker)
{
gNumLinksCalledBack++;
linkChecker.status = status;
for (var i = 0; i < gNumLinksCalledBack; i++)
{
if (linkChecker == gLinksBeingChecked[i])
gLinksBeingChecked[i].status = status;
}
if (gStartedAllChecks && gNumLinksCalledBack >= gNumLinksToCheck)
{
clearTimeout(gLinkCheckTimerID);
LinkCheckTimeOut();
}
}
}
}
function Startup()
{
var editor = GetCurrentEditor();
if (!editor)
{
window.close();
return;
}
// Get all objects that refer to other locations
var objects;
try {
objects = editor.getLinkedObjects();
} catch (e) {}
if (!objects || objects.Count() == 0)
{
AlertWithTitle(GetString("Alert"), GetString("NoLinksToCheck"));
window.close();
return;
}
gDialog.LinksList = document.getElementById("LinksList");
// Set window location relative to parent window (based on persisted attributes)
SetWindowLocation();
// Loop over the nodes that have links:
for (var i = 0; i < objects.Count(); i++)
{
var refobj = objects.GetElementAt(gNumLinksToCheck).QueryInterface(Components.interfaces.nsIURIRefObject);
// Loop over the links in this node:
if (refobj)
{
try {
var uri;
while ((uri = refobj.GetNextURI()))
{
// Use the real class in netlib:
// Note that there may be more than one link per refobj
gURIRefObjects[gNumLinksToCheck] = refobj;
// Make a new nsIURIChecker
gLinksBeingChecked[gNumLinksToCheck]
= Components.classes["@mozilla.org/network/urichecker;1"]
.createInstance()
.QueryInterface(Components.interfaces.nsIURIChecker);
// XXX uri creation needs to be localized
gLinksBeingChecked[gNumLinksToCheck].init(GetIOService().newURI(uri, null, null));
gLinksBeingChecked[gNumLinksToCheck].asyncCheck(gRequestObserver, null);
// Add item
var linkChecker = gLinksBeingChecked[gNumLinksToCheck].QueryInterface(Components.interfaces.nsIURIChecker);
SetItemStatus(linkChecker.name, "busy");
dump(" *** Linkcount = "+gNumLinksToCheck+"\n");
gNumLinksToCheck++;
};
} catch (e) { dump (" *** EXCEPTION\n");}
}
}
// Done with the loop, now we can be prepared for the finish:
gStartedAllChecks = true;
// Start timer to limit how long we wait for link checking
gLinkCheckTimerID = setTimeout(LinkCheckTimeOut, 5000);
window.sizeToContent();
}
function LinkCheckTimeOut()
{
// We might have gotten here via a late timeout
if (gNumLinksToCheck <= 0)
return;
gLinkCheckTimerID = 0;
gNumLinksToCheck = 0;
gStartedAllChecks = false;
for (var i=0; i < gLinksBeingChecked.length; i++)
{
var linkChecker = gLinksBeingChecked[i].QueryInterface(Components.interfaces.nsIURIChecker);
// nsIURIChecker status values:
// NS_BINDING_SUCCEEDED link is valid
// NS_BINDING_FAILED link is invalid (gave an error)
// NS_BINDING_ABORTED timed out, or cancelled
switch (linkChecker.status)
{
case 0: // NS_BINDING_SUCCEEDED
SetItemStatus(linkChecker.name, "done");
break;
case 0x804b0001: // NS_BINDING_FAILED
dump(">> " + linkChecker.name + " is broken\n");
case 0x804b0002: // NS_BINDING_ABORTED
// dump(">> " + linkChecker.name + " timed out\n");
default:
// dump(">> " + linkChecker.name + " not checked\n");
SetItemStatus(linkChecker.name, "failed");
break;
}
}
}
// Add url to list of links to check
// or set status for file already in the list
// Returns true if url was in the list
function SetItemStatus(url, status)
{
if (!url)
return false;
if (!status)
status = "busy";
// Just set attribute for status icon
// if we already have this url
var listitems = document.getElementsByTagName("listitem");
if (listitems)
{
for (var i=0; i < listitems.length; i++)
{
if (listitems[i].getAttribute("label") == url)
{
listitems[i].setAttribute("progress", status);
return true;
}
}
}
// We're adding a new item to list
var listitem = document.createElementNS(XUL_NS, "listitem");
if (listitem)
{
listitem.setAttribute("class", "listitem-iconic progressitem");
// This triggers CSS to show icon for each status state
listitem.setAttribute("progress", status);
listitem.setAttribute("label", url);
gDialog.LinksList.appendChild(listitem);
}
return false;
}
function onAccept()
{
SaveWindowLocation();
return true; // do close the window
}
function onCancelLinkChecker()
{
if (gLinkCheckTimerID)
clearTimeout(gLinkCheckTimerID);
/*
LinkCheckTimeOut();
*/
return onCancel();
}