h5p-php-library/js/h5p-content-upgrade-worker.js

63 lines
1.5 KiB
JavaScript

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