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Made content state saving more robust [HFJ-1450]

pull/17/head
Paal Joergensen 2015-12-18 10:06:33 +01:00
parent 5e45e7d7dd
commit e83b213183
1 changed files with 22 additions and 9 deletions
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31
js/h5p.js
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@ -1947,21 +1947,34 @@ H5P.createTitle = function (rawTitle, maxLength) {
}
if (H5PIntegration.saveFreq !== false) {
// When was the last state stored
var lastStoredOn = 0;
// Store the current state of the H5P when leaving the page.
var storeCurrentState = function () {
for (var i = 0; i < H5P.instances.length; i++) {
var instance = H5P.instances[i];
if (instance.getCurrentState instanceof Function ||
typeof instance.getCurrentState === 'function') {
var state = instance.getCurrentState();
if (state !== undefined) {
// Async is not used to prevent the request from being cancelled.
H5P.setUserData(instance.contentId, 'state', state, {deleteOnChange: true, async: false});
// Make sure at least 250 ms has passed since last save
var currentTime = new Date().getTime();
if (currentTime - lastStoredOn > 250) {
lastStoredOn = currentTime;
for (var i = 0; i < H5P.instances.length; i++) {
var instance = H5P.instances[i];
if (instance.getCurrentState instanceof Function ||
typeof instance.getCurrentState === 'function') {
var state = instance.getCurrentState();
if (state !== undefined) {
// Async is not used to prevent the request from being cancelled.
H5P.setUserData(instance.contentId, 'state', state, {deleteOnChange: true, async: false});
}
}
}
}
};
H5P.$window.one('beforeunload unload', storeCurrentState);
// iPad does not support beforeunload, therefore using unload
H5P.$window.one('beforeunload unload', function () {
// Only want to do this once
H5P.$window.off('pagehide beforeunload unload');
storeCurrentState();
});
// pagehide is used on iPad when tabs are switched
H5P.$window.on('pagehide', storeCurrentState);
}