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124 lines
3.9 KiB
JavaScript
124 lines
3.9 KiB
JavaScript
// -*- Mode: Java -*-
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// the rdf service
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var RDF = Components.classes['component://netscape/rdf/rdf-service'].getService();
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RDF = RDF.QueryInterface(Components.interfaces.nsIRDFService);
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// the current profile directory
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// XXX obviously, this shouldn't be hard-coded
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var profiledir = 'resource:/res/rdf/';
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// the location of the flash registry.
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var flashdb = profiledir + 'flash-registry.rdf';
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function Init()
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{
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// Initialize the Flash panel.
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dump('Init!\n');
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var tree = document.getElementById('tree');
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// Install all the datasources named in the Flash Registry into
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// the tree control. Datasources are listed as members of the
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// NC:FlashDataSources sequence, and are loaded in the order that
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// they appear in that sequence.
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var registry = RDF.GetDataSource(flashdb);
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// Create a 'container' wrapper around the NC:FlashDataSources
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// resource so we can use some utility routines that make access a
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// bit easier.
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var flashdatasources = Components.classes['component://netscape/rdf/container'].createInstance();
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flashdatasources = flashdatasources.QueryInterface(Components.interfaces.nsIRDFContainer);
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flashdatasources.Init(registry, RDF.GetResource('NC:FlashDataSources'));
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// Now enumerate all of the flash datasources.
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var enumerator = flashdatasources.GetElements();
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while (enumerator.HasMoreElements()) {
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var service = enumerator.GetNext();
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service = service.QueryInterface(Components.interfaces.nsIRDFResource);
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dump('adding "' + service.Value + '" to the tree\n');
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try {
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// create a new RDF/XML datasource. This will,
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// unfortunately, force it to be read synchronously the
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// first time around.
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var flashservice = RDF.GetDataSource(service.Value);
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flashservice = flashservice.QueryInterface(Components.interfaces.nsIRDFXMLDataSource);
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// Add it to the tree control's composite datasource.
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tree.database.AddDataSource(flashservice);
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var pollInterval =
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registry.GetTarget(service,
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RDF.GetResource('http://home.netscape.com/NC-rdf#poll-interval'),
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true);
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dump('poll interval = "' + pollInterval + '"\n');
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if (pollInterval)
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pollInterval = pollInterval.QueryInterface(Components.interfaces.nsIRDFLiteral);
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if (pollInterval)
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pollInterval = pollInterval.Value;
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if (pollInterval) {
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dump(service.Value + ': setting poll interval to ' + pollInterval + 'sec.\n');
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Schedule(service.Value, pollInterval);
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}
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}
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catch (ex) {
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dump('an exception occurred trying to load "' + service.Value + '":\n');
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dump(ex + '\n');
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}
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}
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// Install all of the stylesheets in the Flash Registry into the
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// panel.
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// TODO
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// XXX hack to force the tree to rebuild
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var treebody = document.getElementById('NC:FlashRoot');
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treebody.setAttribute('id', 'NC:FlashRoot');
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}
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function Reload(url, pollInterval)
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{
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// Reload the specified datasource and reschedule.
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dump('Reload(' + url + ', ' + pollInterval + ')\n');
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var datasource = RDF.GetDataSource(url);
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datasource = datasource.QueryInterface(Components.interfaces.nsIRDFXMLDataSource);
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// Reload, asynchronously.
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datasource.Open(false);
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// Reschedule
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Schedule(url, pollInterval);
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}
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function Schedule(url, pollInterval)
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{
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setTimeout('Reload("' + url + '", ' + pollInterval + ')', pollInterval * 1000);
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}
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function OpenURL(node)
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{
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dump("open-url(" + node + ")\n");
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}
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// To get around "window.onload" not working in viewer.
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function Boot()
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{
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var tree = document.getElementById('tree');
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if (tree == null) {
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setTimeout(Boot, 0);
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}
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else {
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Init();
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}
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}
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setTimeout('Boot()', 0);
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