100 lines
3.5 KiB
JavaScript
100 lines
3.5 KiB
JavaScript
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// Based on Apple sample code at
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// http://developer.apple.com/internet/webcontent/examples/detectplugins_source.html
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// initialize global variables
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var detectableWithVB = false;
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var pluginFound = false;
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function goURL(daURL) {
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// Assume we have Javascript 1.1 functionality.
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window.location.replace(daURL);
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return;
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}
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function redirectCheck(pluginFound, redirectURL, redirectIfFound) {
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// check for redirection
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if( redirectURL && ((pluginFound && redirectIfFound) ||
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(!pluginFound && !redirectIfFound)) ) {
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// go away
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goURL(redirectURL);
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return pluginFound;
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} else {
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// stay here and return result of plugin detection
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return pluginFound;
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}
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}
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function canDetectPlugins() {
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if( detectableWithVB || (navigator.plugins && navigator.plugins.length > 0) ) {
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return true;
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} else {
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return false;
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}
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}
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function detectPanda3D(redirectURL, redirectIfFound) {
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pluginFound = detectPlugin('Panda3D');
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// if not found, try to detect with VisualBasic
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if(!pluginFound && detectableWithVB) {
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pluginFound = detectActiveXControl('P3DACTIVEX.P3DActiveXCtrl.1');
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}
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// check for redirection
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return redirectCheck(pluginFound, redirectURL, redirectIfFound);
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}
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function detectPlugin() {
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// allow for multiple checks in a single pass
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var daPlugins = detectPlugin.arguments;
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// consider pluginFound to be false until proven true
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var pluginFound = false;
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// if plugins array is there and not fake
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if (navigator.plugins && navigator.plugins.length > 0) {
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var pluginsArrayLength = navigator.plugins.length;
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// for each plugin...
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for (pluginsArrayCounter=0; pluginsArrayCounter < pluginsArrayLength; pluginsArrayCounter++ ) {
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// loop through all desired names and check each against the current plugin name
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var numFound = 0;
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for(namesCounter=0; namesCounter < daPlugins.length; namesCounter++) {
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// if desired plugin name is found in either plugin name or description
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if( (navigator.plugins[pluginsArrayCounter].name.indexOf(daPlugins[namesCounter]) >= 0) ||
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(navigator.plugins[pluginsArrayCounter].description.indexOf(daPlugins[namesCounter]) >= 0) ) {
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// this name was found
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numFound++;
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}
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}
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// now that we have checked all the required names against this one plugin,
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// if the number we found matches the total number provided then we were successful
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if(numFound == daPlugins.length) {
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pluginFound = true;
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// if we've found the plugin, we can stop looking through at the rest of the plugins
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break;
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}
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}
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}
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return pluginFound;
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} // detectPlugin
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// Here we write out the VBScript block for MSIE Windows
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if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)) {
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document.writeln('<script language="VBscript">');
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document.writeln('\'do a one-time test for a version of VBScript that can handle this code');
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document.writeln('detectableWithVB = False');
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document.writeln('If ScriptEngineMajorVersion >= 2 then');
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document.writeln(' detectableWithVB = True');
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document.writeln('End If');
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document.writeln('\'this next function will detect most plugins');
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document.writeln('Function detectActiveXControl(activeXControlName)');
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document.writeln(' on error resume next');
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document.writeln(' detectActiveXControl = False');
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document.writeln(' If detectableWithVB Then');
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document.writeln(' detectActiveXControl = IsObject(CreateObject(activeXControlName))');
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document.writeln(' End If');
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document.writeln('End Function');
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document.writeln('</script>');
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}
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