63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
var H5P = window.H5P = window.H5P || {};
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importScripts('h5p-version.js', 'h5p-content-upgrade-process.js');
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var libraryLoadedCallback;
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/**
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* Register message handlers
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*/
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var messageHandlers = {
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newJob: function (job) {
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// Start new job
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new H5P.ContentUpgradeProcess(job.name, new H5P.Version(job.oldVersion), new H5P.Version(job.newVersion), job.params, job.id, function loadLibrary(name, version, next) {
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// TODO: Cache?
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postMessage({
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action: 'loadLibrary',
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name: name,
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version: version.toString()
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});
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libraryLoadedCallback = next;
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}, function done(err, result) {
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if (err) {
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// Return error
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postMessage({
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action: 'error',
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id: job.id,
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err: err.message ? err.message : err
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});
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return;
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}
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// Return upgraded content
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postMessage({
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action: 'done',
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id: job.id,
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params: result
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});
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});
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},
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libraryLoaded: function (data) {
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var library = data.library;
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if (library.upgradesScript) {
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try {
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importScripts(library.upgradesScript);
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}
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catch (err) {
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libraryLoadedCallback(err);
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return;
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}
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}
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libraryLoadedCallback(null, data.library);
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}
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};
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/**
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* Handle messages from our master
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*/
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onmessage = function (event) {
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if (event.data.action !== undefined && messageHandlers[event.data.action]) {
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messageHandlers[event.data.action].call(this, event.data);
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}
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};
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