37 lines
1.3 KiB
JavaScript
Executable File
37 lines
1.3 KiB
JavaScript
Executable File
const MOZ_HELP_URI = "chrome://help/content/help.xul";
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const MOZILLA_HELP = "chrome://help/locale/mozillahelp.rdf";
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var helpFileURI = MOZILLA_HELP;
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// Call this function to display a help topic.
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// uri: [chrome uri of rdf help file][?topic]
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function openHelp(topic) {
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var topWindow = locateHelpWindow(helpFileURI);
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if ( topWindow ) {
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topWindow.focus();
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topWindow.displayTopic(topic);
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} else {
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var encodedURI = encodeURIComponent(helpFileURI + "?" + ((topic)?topic:""));
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window.open(MOZ_HELP_URI + "?" + encodedURI, "_blank", "chrome,menubar,toolbar,dialog=no,resizable,scrollbars");
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}
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}
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function setHelpFileURI(rdfURI) {
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helpFileURI = rdfURI;
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}
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// Locate mozilla:help window (if any) opened for this help file uri.
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function locateHelpWindow(helpFileURI) {
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var windowManager = Components.classes['@mozilla.org/rdf/datasource;1?name=window-mediator'].getService();
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var windowManagerInterface = windowManager.QueryInterface( Components.interfaces.nsIWindowMediator);
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var iterator = windowManagerInterface.getEnumerator( "mozilla:help");
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var topWindow = null;
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while (iterator.hasMoreElements()) {
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var aWindow = iterator.getNext();
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if (aWindow.getHelpFileURI() == helpFileURI) {
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topWindow = aWindow;
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break;
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}
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}
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return topWindow;
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}
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