mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-08-30 17:40:16 +02:00
168 lines
5.0 KiB
JavaScript
168 lines
5.0 KiB
JavaScript
// the rdf service
|
|
var gRDFService;
|
|
var gTitleArc;
|
|
var gContentArc;
|
|
var gBuiltinUrlsDataSource;
|
|
var gDataSourceState;
|
|
var gDataSourceLoaded;
|
|
var gSinkObserverRegistered;
|
|
|
|
var SinkObserver =
|
|
{
|
|
onBeginLoad: function( aSink) {
|
|
gDataSourceState = (gDataSourceState | 1);
|
|
debug_dump("\n-> SinkObserver:onBeginLoad: " + aSink + ", gDataSourceState=" + gDataSourceState + "\n");
|
|
},
|
|
|
|
onInterrupt: function( aSink) {
|
|
gDataSourceState = (gDataSourceState | 2);
|
|
debug_dump("\n-> SinkObserver:onInterrupt: " + aSink + ", gDataSourceState=" + gDataSourceState + "\n");
|
|
},
|
|
|
|
onResume: function( aSink) {
|
|
gDataSourceState = (gDataSourceState & ~2);
|
|
debug_dump("\n-> SinkObserver:onResume: " + aSink + ", gDataSourceState=" + gDataSourceState + "\n");
|
|
},
|
|
|
|
onEndLoad: function( aSink) {
|
|
gDataSourceState = (gDataSourceState | 4);
|
|
gDataSourceLoaded = (gDataSourceState == 5);
|
|
|
|
debug_dump("\n-> onEndLoad: " + aSink + ", gDataSourceState=" + gDataSourceState + ", gDataSourceLoaded=" + gDataSourceLoaded + "\n");
|
|
|
|
if (!gDataSourceLoaded) {
|
|
debug_dump("\n-> builtin URLs not loaded!\n");
|
|
return;
|
|
}
|
|
|
|
gBuiltinUrlsDataSource = aSink.QueryInterface(Components.interfaces.nsIRDFDataSource);
|
|
|
|
debug_dump("Got gBuiltinUrlsDataSource " + gBuiltinUrlsDataSource + " with gTitleArc " + gTitleArc + " and gContentArc " + gContentArc + "\n");
|
|
},
|
|
|
|
onError: function( aSink, aStatus, aErrMsg) {
|
|
gDataSourceState = (gDataSourceState | 8);
|
|
debug_dump("\n-> SinkObserver:onError: " + aSink + ", status=" + aStatus +
|
|
", errMsg=" + aErrMsg + ", gDataSourceState=" + gDataSourceState + "\n");
|
|
}
|
|
};
|
|
|
|
function debug_dump(msg)
|
|
{
|
|
}
|
|
|
|
/*
|
|
function debug_dump(msg)
|
|
{
|
|
dump(msg);
|
|
}
|
|
*/
|
|
|
|
function loadDS()
|
|
{
|
|
debug_dump("\n-->loadDS() called for " + window.document + " <--\n");
|
|
if (gBuiltinUrlsDataSource && gDataSourceLoaded) {
|
|
debug_dump("\n-->loadDS(): gBuiltinUrlsDataSource=" + gBuiltinUrlsDataSource + ", gDataSourceLoaded=" + gDataSourceLoaded + ", returning! <--\n");
|
|
return;
|
|
}
|
|
|
|
if (gSinkObserverRegistered)
|
|
{
|
|
debug_dump("Already registered SinkObserver in loadDS()\n");
|
|
return;
|
|
}
|
|
|
|
// initialize
|
|
gRDFService = Components.classes['@mozilla.org/rdf/rdf-service;1'].getService();
|
|
gRDFService = gRDFService.QueryInterface(Components.interfaces.nsIRDFService);
|
|
|
|
if (!gRDFService) {
|
|
debug_dump("\n-->loadDS(): gRDFService service is null!\n");
|
|
return;
|
|
}
|
|
|
|
gTitleArc = gRDFService.GetResource("http://home.netscape.com/NC-rdf#title");
|
|
gContentArc = gRDFService.GetResource("http://home.netscape.com/NC-rdf#content");
|
|
|
|
var ds_uri = "chrome://global-region/locale/builtinURLs.rdf";
|
|
var url_ds = gRDFService.GetDataSource(ds_uri); // return nsIRDFDataSource
|
|
if (!url_ds) {
|
|
debug_dump("\n >>Can't get " + ds_uri + "<-\n");
|
|
return;
|
|
}
|
|
|
|
if (url_ds.QueryInterface(Components.interfaces.nsIRDFRemoteDataSource).loaded)
|
|
{
|
|
ds_uri = "chrome://global-region/locale/builtinURLs.rdf";
|
|
gBuiltinUrlsDataSource = gRDFService.GetDataSource(ds_uri); // return nsIRDFDataSource
|
|
gDataSourceLoaded = (gBuiltinUrlsDataSource != null);
|
|
}
|
|
else
|
|
{
|
|
var rdfXMLSink = url_ds.QueryInterface( Components.interfaces.nsIRDFXMLSink );
|
|
if (rdfXMLSink) {
|
|
gBuiltinUrlsDataSource = null;
|
|
gDataSourceState = 0x0; // init.
|
|
gDataSourceLoaded = false;
|
|
gSinkObserverRegistered = true;
|
|
|
|
rdfXMLSink.addXMLSinkObserver(SinkObserver);
|
|
}
|
|
else
|
|
{
|
|
debug_dump("rdfXMLSink is null\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
function xlateURL(key)
|
|
{
|
|
debug_dump("\n>> xlateURL(" + key + "): gBuiltinUrlsDataSource=" + gBuiltinUrlsDataSource + ", gDataSourceLoaded=" + gDataSourceLoaded + "\n");
|
|
|
|
if (!gBuiltinUrlsDataSource || !gDataSourceLoaded) {
|
|
throw("urn translation data source not loaded");
|
|
}
|
|
// get data
|
|
var srcNode = gRDFService.GetResource(key);
|
|
var titleTarget = gBuiltinUrlsDataSource.GetTarget(srcNode, gTitleArc, true);
|
|
if (titleTarget) {
|
|
titleTarget =
|
|
titleTarget.QueryInterface(Components.interfaces.nsIRDFLiteral);
|
|
debug_dump("\n-> " + key + "::title=" + titleTarget.Value);
|
|
}
|
|
else {
|
|
debug_dump("\n title target=" + titleTarget + "\n");
|
|
}
|
|
|
|
var contentTarget = gBuiltinUrlsDataSource.GetTarget(srcNode, gContentArc, true);
|
|
if (contentTarget) {
|
|
contentTarget =
|
|
contentTarget.QueryInterface(Components.interfaces.nsIRDFLiteral);
|
|
debug_dump("\n-> " + key + "::content=" + contentTarget.Value + "\n");
|
|
return contentTarget.Value;
|
|
}
|
|
else {
|
|
debug_dump("\n content target=" + contentTarget + "\n");
|
|
throw("urn not found in datasource");
|
|
}
|
|
|
|
// not reached
|
|
return "";
|
|
}
|
|
|
|
function loadXURL(key)
|
|
{
|
|
debug_dump("loadXURL call with " + key + "\n");
|
|
|
|
var url = xlateURL(key);
|
|
//check to see if this is a browser window before opening.
|
|
var winType = document.documentElement.getAttribute("windowtype");
|
|
|
|
if (window.content && winType == "navigator:browser")
|
|
window.content.location.href = url;
|
|
else
|
|
window.open(url); // on mac, there maybe no open windows: see bug 83329
|
|
}
|
|
|
|
loadDS();
|