gecko-dev/suite/common/related/related-panel.js

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6.8 KiB
JavaScript
Исходник Обычный вид История

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; 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):
*/
/*
Code for the Related Links Sidebar Panel
*/
function debug(msg)
{
// uncomment for noise
// dump(msg);
}
// The content window that we're supposed to be observing.
var ContentWindow = window.content;
// The related links handler
var Handler = Components.classes["component://netscape/related-links-handler"].createInstance();
Handler = Handler.QueryInterface(Components.interfaces.nsIRelatedLinksHandler);
// Our observer object
var Observer = {
Observe: function(subject, topic, data) {
debug("Observer.Observe(" + subject + ", " + topic + ", " + data + ")\n");
if (subject != ContentWindow)
{
debug("subject was not content window, ignoring\n");
return;
}
refetchRelatedLinks(Handler, data);
}
}
function
skipRelatedLinksDomain(newDomain)
{
var skipDomainFlag = false;
if (newDomain[newDomain.length - 1] == '/')
{
newDomain = newDomain.substring(0, newDomain.length - 1);
}
try
{
var pref = Components.classes["component://netscape/preferences"];
if (pref) pref = pref.getService();
if (pref) pref = pref.QueryInterface(Components.interfaces.nsIPref);
if (pref)
{
var domainList = pref.CopyCharPref("browser.related.disabledForDomains");
if ((domainList) && (domainList != ""))
{
debug("\nProposed New Domain: '" + newDomain + "'\n");
debug("Skip Domain List: '" + domainList + "'\n");
var domains = domainList.split(","); // split on commas
for (var x=0; x < domains.length; x++)
{
var aDomain = newDomain;
var domain = domains[x];
debug("Skip Domain #" + x + ": " + domain + "\n");
if (domain[0] == '*') // wildcard match
{
debug(" Wildcard domain.\n");
domain = domain.substring(1); // strip off the asterisk
if (aDomain.length > domain.length)
{
aDomain = aDomain.substring(newDomain.length-domain.length);
}
}
if (aDomain.lastIndexOf(domain) == 0)
{
debug(" Skip this domain '" + aDomain + "'\n");
skipDomainFlag = true;
break;
}
}
}
}
}
catch(ex)
{
}
return(skipDomainFlag);
}
function refetchRelatedLinks(Handler, data)
{
var newSite = "" + data;
// if we're looking at a translated page, get RL data for the true site
if (newSite.indexOf("http://levis.alis.com:8080/") == 0)
{
var matchStr = "AlisTargetURI="; // this is expected to be the last argument
var targetOffset = data.indexOf(matchStr);
if (targetOffset > 0)
{
targetOffset += matchStr.length;
newSite = newSite.substr(targetOffset);
data = newSite;
}
}
// we can only get related links data on HTTP URLs
if (newSite.indexOf("http://") != 0)
{
debug("Unable to fetch related links data on non-HTTP URL.\n");
return(false);
}
newSite = newSite.substr(7); // strip off "http://" prefix
var portOffset = newSite.indexOf(":");
var slashOffset = newSite.indexOf("/");
var theOffset = ((portOffset >=0) && (portOffset <= slashOffset)) ? portOffset : slashOffset;
if (theOffset >= 0) newSite = newSite.substr(0, theOffset);
var currentSite = "";
if (Handler.URL != null)
{
currentSite = Handler.URL.substr(7); // strip off "http://" prefix
portOffset = currentSite.indexOf(":");
slashOffset = currentSite.indexOf("/");
theOffset = ((portOffset >=0) && (portOffset <= slashOffset)) ? portOffset : slashOffset;
if (theOffset >= 0) currentSite = currentSite.substr(0, theOffset );
}
debug("Related Links: Current top-level: " + currentSite + " new top-level: " + newSite + "\n");
// only request new related links data if we've got a new web site (hostname change)
if (currentSite != newSite)
{
// privacy: don't send anything after a '?'
var theSite = "" + data;
var questionOffset = theSite.indexOf("?");
if (questionOffset > 0)
{
theSite = theSite.substr(0, questionOffset);
}
if (skipRelatedLinksDomain(newSite) != true)
{
Handler.URL = theSite;
}
}
}
function Init()
{
// Initialize the Related Links panel
// Create a Related Links handler, and install it in the tree
var Tree = document.getElementById("Tree");
Tree.database.AddDataSource(Handler.QueryInterface(Components.interfaces.nsIRDFDataSource));
// Install the observer so we'll be notified when new content is loaded.
var ObserverService = Components.classes["component://netscape/observer-service"].getService();
ObserverService = ObserverService.QueryInterface(Components.interfaces.nsIObserverService);
if (ObserverService)
{
ObserverService.AddObserver(Observer, "StartDocumentLoad");
ObserverService.AddObserver(Observer, "EndDocumentLoad");
ObserverService.AddObserver(Observer, "FailDocumentLoad");
debug("added observer\n");
}
else
{
debug("FAILURE to get observer service\n");
}
if (ContentWindow) {
refetchRelatedLinks(Handler, ContentWindow.location);
}
}
function openURL(event, treeitem, root)
{
if ((event.button != 1) || (event.clickCount != 2))
return(false);
if (treeitem.getAttribute('container') == 'true')
return(false);
if (treeitem.getAttribute("type") == "http://home.netscape.com/NC-rdf#BookmarkSeparator")
return(false);
var id = treeitem.getAttribute('id');
if (!id) return(false);
// rjc: add support for anonymous resources; if the node has
// a "#URL" property, use it, otherwise default to using the id
try
{
var rootNode = document.getElementById(root);
var ds = null;
if (rootNode)
{
ds = rootNode.database;
}
var rdf = Components.classes["component://netscape/rdf/rdf-service"].getService();
if (rdf) rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
if (rdf)
{
if (ds)
{
var src = rdf.GetResource(id, true);
var prop = rdf.GetResource("http://home.netscape.com/NC-rdf#URL", true);
var target = ds.GetTarget(src, prop, true);
if (target) target = target.QueryInterface(Components.interfaces.nsIRDFLiteral);
if (target) target = target.Value;
if (target) id = target;
}
}
}
catch(ex)
{
}
ContentWindow.location = id;
}