h5p-php-library/js/h5p.js

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JavaScript
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/*jshint multistr: true */
// TODO: Should we split up the generic parts needed by the editor(and others), and the parts needed to "run" H5Ps?
/** @namespace */
var H5P = H5P || {};
/**
* Tells us if we're inside of an iframe.
* @member {boolean}
*/
H5P.isFramed = (window.self !== window.parent);
/**
* jQuery instance of current window.
* @member {H5P.jQuery}
*/
H5P.$window = H5P.jQuery(window);
/**
* List over H5P instances on the current page.
* @member {Array}
*/
H5P.instances = [];
// Detect if we support fullscreen, and what prefix to use.
if (document.documentElement.requestFullScreen) {
/**
* Browser prefix to use when entering fullscreen mode.
* undefined means no fullscreen support.
* @member {string}
*/
H5P.fullScreenBrowserPrefix = '';
}
else if (document.documentElement.webkitRequestFullScreen) {
H5P.safariBrowser = navigator.userAgent.match(/Version\/(\d)/);
H5P.safariBrowser = (H5P.safariBrowser === null ? 0 : parseInt(H5P.safariBrowser[1]));
// Do not allow fullscreen for safari < 7.
if (H5P.safariBrowser === 0 || H5P.safariBrowser > 6) {
H5P.fullScreenBrowserPrefix = 'webkit';
}
}
else if (document.documentElement.mozRequestFullScreen) {
H5P.fullScreenBrowserPrefix = 'moz';
}
else if (document.documentElement.msRequestFullscreen) {
H5P.fullScreenBrowserPrefix = 'ms';
}
/** @const {number} */
H5P.DISABLE_NONE = 0;
/** @const {number} */
H5P.DISABLE_FRAME = 1;
/** @const {number} */
H5P.DISABLE_DOWNLOAD = 2;
/** @const {number} */
H5P.DISABLE_EMBED = 4;
/** @const {number} */
H5P.DISABLE_COPYRIGHT = 8;
/** @const {number} */
H5P.DISABLE_ABOUT = 16;
/**
* Keep track of when the H5Ps where started.
*
* @type {Object[]}
*/
H5P.opened = {};
/**
* Initialize H5P content.
* Scans for ".h5p-content" in the document and initializes H5P instances where found.
*
* @param {Object} target DOM Element
*/
H5P.init = function (target) {
// Useful jQuery object.
if (H5P.$body === undefined) {
H5P.$body = H5P.jQuery(document.body);
}
// Determine if we can use full screen
if (H5P.canHasFullScreen === undefined) {
/**
* Use this variable to check if fullscreen is supported. Fullscreen can be
* restricted when embedding since not all browsers support the native
* fullscreen, and the semi-fullscreen solution doesn't work when embedded.
* @type {boolean}
*/
H5P.canHasFullScreen = (H5P.isFramed && H5P.externalEmbed !== false) ? ((document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled) ? true : false) : true;
// We should consider document.msFullscreenEnabled when they get their
// element sizing corrected. Ref. https://connect.microsoft.com/IE/feedback/details/838286/ie-11-incorrectly-reports-dom-element-sizes-in-fullscreen-mode-when-fullscreened-element-is-within-an-iframe
}
// H5Ps added in normal DIV.
var $containers = H5P.jQuery('.h5p-content:not(.h5p-initialized)', target).each(function () {
var $element = H5P.jQuery(this).addClass('h5p-initialized');
var $container = H5P.jQuery('<div class="h5p-container"></div>').appendTo($element);
var contentId = $element.data('content-id');
var contentData = H5PIntegration.contents['cid-' + contentId];
if (contentData === undefined) {
return H5P.error('No data for content id ' + contentId + '. Perhaps the library is gone?');
}
var library = {
library: contentData.library,
params: JSON.parse(contentData.jsonContent)
};
H5P.getUserData(contentId, 'state', function (err, previousState) {
if (previousState) {
library.userDatas = {
state: previousState
};
}
else if (previousState === null && H5PIntegration.saveFreq) {
// Content has been reset. Display dialog.
delete contentData.contentUserData;
var dialog = new H5P.Dialog('content-user-data-reset', 'Data Reset', '<p>' + H5P.t('contentChanged') + '</p><p>' + H5P.t('startingOver') + '</p><div class="h5p-dialog-ok-button" tabIndex="0" role="button">OK</div>', $container);
H5P.jQuery(dialog).on('dialog-opened', function (event, $dialog) {
var closeDialog = function (event) {
if (event.type === 'click' || event.which === 32) {
dialog.close();
H5P.deleteUserData(contentId, 'state', 0);
}
};
$dialog.find('.h5p-dialog-ok-button').click(closeDialog).keypress(closeDialog);
});
dialog.open();
}
});
// Create new instance.
var instance = H5P.newRunnable(library, contentId, $container, true, {standalone: true});
// Check if we should add and display a fullscreen button for this H5P.
if (contentData.fullScreen == 1 && H5P.canHasFullScreen) {
H5P.jQuery('<div class="h5p-content-controls"><div role="button" tabindex="0" class="h5p-enable-fullscreen" title="' + H5P.t('fullscreen') + '"></div></div>').prependTo($container).children().click(function () {
H5P.fullScreen($container, instance);
});
}
// Create action bar
var $actions = H5P.jQuery('<ul class="h5p-actions"></ul>');
/**
* Helper for creating action bar buttons.
*
* @private
* @param {string} type
* @param {function} handler
* @param {string} customClass Instead of type class
*/
var addActionButton = function (type, handler, customClass) {
H5P.jQuery('<li/>', {
'class': 'h5p-button h5p-' + (customClass ? customClass : type),
role: 'button',
tabindex: 0,
title: H5P.t(type + 'Description'),
html: H5P.t(type),
on: {
click: handler,
keypress: function (e) {
if (e.which === 32) {
handler();
e.preventDefault(); // (since return false will block other inputs)
}
}
},
appendTo: $actions
});
};
// Register action bar buttons
if (!(contentData.disable & H5P.DISABLE_DOWNLOAD)) {
// Add export button
addActionButton('download', function () {
// Use button for download to avoid people linking directly to the .h5p
window.location.href = contentData.exportUrl;
}, 'export');
}
if (!(contentData.disable & H5P.DISABLE_COPYRIGHT)) {
var copyright = H5P.getCopyrights(instance, library.params, contentId);
if (copyright) {
// Add copyright dialog button
addActionButton('copyrights', function () {
// Open dialog with copyright information
var dialog = new H5P.Dialog('copyrights', H5P.t('copyrightInformation'), copyright, $container);
dialog.open();
});
}
}
if (!(contentData.disable & H5P.DISABLE_EMBED)) {
// Add embed button
addActionButton('embed', function () {
// Open dialog with embed information
H5P.openEmbedDialog($actions, contentData.embedCode, contentData.resizeCode, {
width: $element.width(),
height: $element.height()
});
});
}
if (!(contentData.disable & H5P.DISABLE_ABOUT)) {
// Add about H5P button icon
H5P.jQuery('<li><a class="h5p-link" href="http://h5p.org" target="_blank" title="' + H5P.t('h5pDescription') + '"></a></li>').appendTo($actions);
}
// Insert action bar if it has any content
if (!(contentData.disable & H5P.DISABLE_FRAME) && $actions.children().length) {
$actions.insertAfter($container);
$element.addClass('h5p-frame');
}
else {
$element.addClass('h5p-no-frame');
}
// Keep track of when we started
H5P.opened[contentId] = new Date();
// Handle events when the user finishes the content. Useful for logging exercise results.
H5P.on(instance, 'finish', function (event) {
if (event.data !== undefined) {
H5P.setFinished(contentId, event.data.score, event.data.maxScore, event.data.time);
}
});
// Listen for xAPI events.
H5P.on(instance, 'xAPI', H5P.xAPICompletedListener);
// Auto save current state if supported
if (H5PIntegration.saveFreq !== false && (
instance.getCurrentState instanceof Function ||
typeof instance.getCurrentState === 'function')) {
var saveTimer, save = function () {
var state = instance.getCurrentState();
if (state !== undefined) {
H5P.setUserData(contentId, 'state', state, {deleteOnChange: true});
}
if (H5PIntegration.saveFreq) {
// Continue autosave
saveTimer = setTimeout(save, H5PIntegration.saveFreq * 1000);
}
};
if (H5PIntegration.saveFreq) {
// Start autosave
saveTimer = setTimeout(save, H5PIntegration.saveFreq * 1000);
}
// xAPI events will schedule a save in three seconds.
H5P.on(instance, 'xAPI', function (event) {
var verb = event.getVerb();
if (verb === 'completed' || verb === 'progressed') {
clearTimeout(saveTimer);
saveTimer = setTimeout(save, 3000);
}
});
}
if (H5P.isFramed) {
var resizeDelay;
if (H5P.externalEmbed === false) {
// Internal embed
// Make it possible to resize the iframe when the content changes size. This way we get no scrollbars.
var iframe = window.parent.document.getElementById('h5p-iframe-' + contentId);
var resizeIframe = function () {
if (window.parent.H5P.isFullscreen) {
return; // Skip if full screen.
}
// Retain parent size to avoid jumping/scrolling
var parentHeight = iframe.parentElement.style.height;
iframe.parentElement.style.height = iframe.parentElement.clientHeight + 'px';
// Reset iframe height, in case content has shrinked.
iframe.style.height = '1px';
// Resize iframe so all content is visible.
iframe.style.height = (iframe.contentDocument.body.scrollHeight) + 'px';
// Free parent
iframe.parentElement.style.height = parentHeight;
};
H5P.on(instance, 'resize', function () {
// Use a delay to make sure iframe is resized to the correct size.
clearTimeout(resizeDelay);
resizeDelay = setTimeout(function () {
resizeIframe();
}, 1);
});
}
else if (H5P.communicator) {
// External embed
var parentIsFriendly = false;
// Handle that the resizer is loaded after the iframe
H5P.communicator.on('ready', function () {
H5P.communicator.send('hello');
});
// Handle hello message from our parent window
H5P.communicator.on('hello', function () {
// Initial setup/handshake is done
parentIsFriendly = true;
// Make iframe responsive
document.body.style.height = 'auto';
// Hide scrollbars for correct size
document.body.style.overflow = 'hidden';
// Content need to be resized to fit the new iframe size
H5P.trigger(instance, 'resize');
});
// When resize has been prepared tell parent window to resize
H5P.communicator.on('resizePrepared', function (data) {
H5P.communicator.send('resize', {
scrollHeight: document.body.scrollHeight
});
});
H5P.communicator.on('resize', function () {
H5P.trigger(instance, 'resize');
});
H5P.on(instance, 'resize', function () {
if (H5P.isFullscreen) {
return; // Skip iframe resize
}
// Use a delay to make sure iframe is resized to the correct size.
clearTimeout(resizeDelay);
resizeDelay = setTimeout(function () {
// Only resize if the iframe can be resized
if (parentIsFriendly) {
H5P.communicator.send('prepareResize', {
scrollHeight: document.body.scrollHeight,
clientHeight: document.body.clientHeight
});
}
else {
H5P.communicator.send('hello');
}
}, 0);
});
}
}
if (!H5P.isFramed || H5P.externalEmbed === false) {
// Resize everything when window is resized.
H5P.jQuery(window.parent).resize(function () {
if (window.parent.H5P.isFullscreen) {
// Use timeout to avoid bug in certain browsers when exiting fullscreen. Some browser will trigger resize before the fullscreenchange event.
H5P.trigger(instance, 'resize');
}
else {
H5P.trigger(instance, 'resize');
}
});
}
H5P.instances.push(instance);
// Resize content.
H5P.trigger(instance, 'resize');
});
// Insert H5Ps that should be in iframes.
H5P.jQuery('iframe.h5p-iframe:not(.h5p-initialized)', target).each(function () {
var contentId = H5P.jQuery(this).addClass('h5p-initialized').data('content-id');
this.contentDocument.open();
this.contentDocument.write('<!doctype html><html class="h5p-iframe"><head>' + H5P.getHeadTags(contentId) + '</head><body><div class="h5p-content" data-content-id="' + contentId + '"/></body></html>');
this.contentDocument.close();
});
};
/**
* Loop through assets for iframe content and create a set of tags for head.
*
* @private
* @param {number} contentId
* @returns {string} HTML
*/
H5P.getHeadTags = function (contentId) {
var createStyleTags = function (styles) {
var tags = '';
for (var i = 0; i < styles.length; i++) {
tags += '<link rel="stylesheet" href="' + styles[i] + '">';
}
return tags;
};
var createScriptTags = function (scripts) {
var tags = '';
for (var i = 0; i < scripts.length; i++) {
tags += '<script src="' + scripts[i] + '"></script>';
}
return tags;
};
return '<base target="_parent">' +
createStyleTags(H5PIntegration.core.styles) +
createStyleTags(H5PIntegration.contents['cid-' + contentId].styles) +
createScriptTags(H5PIntegration.core.scripts) +
createScriptTags(H5PIntegration.contents['cid-' + contentId].scripts) +
'<script>H5PIntegration = window.parent.H5PIntegration; var H5P = H5P || {}; H5P.externalEmbed = false;</script>';
};
/**
* When embedded the communicator helps talk to the parent page.
*
* @type {Communicator}
*/
H5P.communicator = (function () {
/**
* @class
* @private
*/
function Communicator() {
var self = this;
// Maps actions to functions
var actionHandlers = {};
// Register message listener
window.addEventListener('message', function receiveMessage(event) {
if (window.parent !== event.source || event.data.context !== 'h5p') {
return; // Only handle messages from parent and in the correct context
}
if (actionHandlers[event.data.action] !== undefined) {
actionHandlers[event.data.action](event.data);
}
} , false);
/**
* Register action listener.
*
* @param {string} action What you are waiting for
* @param {function} handler What you want done
*/
self.on = function (action, handler) {
actionHandlers[action] = handler;
};
/**
* Send a message to the all mighty father.
*
* @param {string} action
* @param {Object} [data] payload
*/
self.send = function (action, data) {
if (data === undefined) {
data = {};
}
data.context = 'h5p';
data.action = action;
// Parent origin can be anything
window.parent.postMessage(data, '*');
};
}
return (window.postMessage && window.addEventListener ? new Communicator() : undefined);
})();
/**
* Enter fullscreen for the given H5P instance.
*
* @param {H5P.jQuery} $element Content container.
* @param {Object} instance
* @param {function} exitCallback Callback function called when user exits fullscreen.
* @param {H5P.jQuery} $body For internal use. Gives the body of the iframe.
*/
H5P.fullScreen = function ($element, instance, exitCallback, body) {
if (H5P.exitFullScreen !== undefined) {
return; // Cannot enter new fullscreen until previous is over
}
if (H5P.isFramed && H5P.externalEmbed === false) {
// Trigger resize on wrapper in parent window.
window.parent.H5P.fullScreen($element, instance, exitCallback, H5P.$body.get());
H5P.isFullscreen = true;
H5P.exitFullScreen = function () {
window.parent.H5P.exitFullScreen();
};
H5P.on(instance, 'exitFullScreen', function () {
H5P.isFullscreen = false;
H5P.exitFullScreen = undefined;
});
return;
}
var $container = $element;
var $classes, $iframe;
if (body === undefined) {
$body = H5P.$body;
}
else {
// We're called from an iframe.
$body = H5P.jQuery(body);
$classes = $body.add($element.get());
var iframeSelector = '#h5p-iframe-' + $element.parent().data('content-id');
$iframe = H5P.jQuery(iframeSelector);
$element = $iframe.parent(); // Put iframe wrapper in fullscreen, not container.
}
$classes = $element.add(H5P.$body).add($classes);
/**
* Prepare for resize by setting the correct styles.
*
* @private
* @param {string} classes CSS
*/
var before = function (classes) {
$classes.addClass(classes);
if ($iframe !== undefined) {
// Set iframe to its default size(100%).
$iframe.css('height', '');
}
};
/**
* Gets called when fullscreen mode has been entered.
* Resizes and sets focus on content.
*
* @private
*/
var entered = function () {
// Do not rely on window resize events.
H5P.trigger(instance, 'resize');
H5P.trigger(instance, 'focus');
H5P.trigger(instance, 'enterFullScreen');
};
/**
* Gets called when fullscreen mode has been exited.
* Resizes and sets focus on content.
*
* @private
* @param {string} classes CSS
*/
var done = function (classes) {
H5P.isFullscreen = false;
$classes.removeClass(classes);
// Do not rely on window resize events.
H5P.trigger(instance, 'resize');
H5P.trigger(instance, 'focus');
H5P.exitFullScreen = undefined;
if (exitCallback !== undefined) {
exitCallback();
}
H5P.trigger(instance, 'exitFullScreen');
};
H5P.isFullscreen = true;
if (H5P.fullScreenBrowserPrefix === undefined) {
// Create semi fullscreen.
if (H5P.isFramed) {
return; // TODO: Should we support semi-fullscreen for IE9 & 10 ?
}
before('h5p-semi-fullscreen');
var $disable = H5P.jQuery('<div role="button" tabindex="0" class="h5p-disable-fullscreen" title="' + H5P.t('disableFullscreen') + '"></div>').appendTo($container.find('.h5p-content-controls'));
var keyup, disableSemiFullscreen = H5P.exitFullScreen = function () {
if (prevViewportContent) {
// Use content from the previous viewport tag
h5pViewport.content = prevViewportContent;
}
else {
// Remove viewport tag
head.removeChild(h5pViewport);
}
$disable.remove();
$body.unbind('keyup', keyup);
done('h5p-semi-fullscreen');
};
keyup = function (event) {
if (event.keyCode === 27) {
disableSemiFullscreen();
}
};
$disable.click(disableSemiFullscreen);
$body.keyup(keyup);
// Disable zoom
var prevViewportContent, h5pViewport;
var metaTags = document.getElementsByTagName('meta');
for (var i = 0; i < metaTags.length; i++) {
if (metaTags[i].name === 'viewport') {
// Use the existing viewport tag
h5pViewport = metaTags[i];
prevViewportContent = h5pViewport.content;
break;
}
}
if (!prevViewportContent) {
// Create a new viewport tag
h5pViewport = document.createElement('meta');
h5pViewport.name = 'viewport';
}
h5pViewport.content = 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0';
if (!prevViewportContent) {
// Insert the new viewport tag
var head = document.getElementsByTagName('head')[0];
head.appendChild(h5pViewport);
}
entered();
}
else {
// Create real fullscreen.
before('h5p-fullscreen');
var first, eventName = (H5P.fullScreenBrowserPrefix === 'ms' ? 'MSFullscreenChange' : H5P.fullScreenBrowserPrefix + 'fullscreenchange');
document.addEventListener(eventName, function () {
if (first === undefined) {
// We are entering fullscreen mode
first = false;
entered();
return;
}
// We are exiting fullscreen
done('h5p-fullscreen');
document.removeEventListener(eventName, arguments.callee, false);
});
if (H5P.fullScreenBrowserPrefix === '') {
$element[0].requestFullScreen();
}
else {
var method = (H5P.fullScreenBrowserPrefix === 'ms' ? 'msRequestFullscreen' : H5P.fullScreenBrowserPrefix + 'RequestFullScreen');
var params = (H5P.fullScreenBrowserPrefix === 'webkit' && H5P.safariBrowser === 0 ? Element.ALLOW_KEYBOARD_INPUT : undefined);
$element[0][method](params);
}
// Allows everone to exit
H5P.exitFullScreen = function () {
if (H5P.fullScreenBrowserPrefix === '') {
document.exitFullscreen();
}
else if (H5P.fullScreenBrowserPrefix === 'moz') {
document.mozCancelFullScreen();
}
else {
document[H5P.fullScreenBrowserPrefix + 'ExitFullscreen']();
}
};
}
};
/**
* Find the path to the content files based on the id of the content.
* Also identifies and returns absolute paths.
*
* @param {string} path
* Relative to content folder or absolute.
* @param {number} contentId
* ID of the content requesting the path.
* @returns {string}
* Complete URL to path.
*/
H5P.getPath = function (path, contentId) {
var hasProtocol = function (path) {
return path.match(/^[a-z0-9]+:\/\//i);
};
if (hasProtocol(path)) {
return path;
}
var prefix;
if (contentId !== undefined) {
prefix = H5PIntegration.url + '/content/' + contentId;
}
else if (window.H5PEditor !== undefined) {
prefix = H5PEditor.filesPath;
}
else {
return;
}
if (!hasProtocol(prefix)) {
// Use absolute urls
prefix = window.location.protocol + "//" + window.location.host + prefix;
}
return prefix + '/' + path;
};
/**
* THIS FUNCTION IS DEPRECATED, USE getPath INSTEAD
* Will be remove march 2016.
*
* Find the path to the content files folder based on the id of the content
*
* @deprecated
* Will be removed march 2016.
* @param contentId
* Id of the content requesting the path
* @returns {string}
* URL
*/
H5P.getContentPath = function (contentId) {
return H5PIntegration.url + '/content/' + contentId;
};
/**
* Get library class constructor from H5P by classname.
* Note that this class will only work for resolve "H5P.NameWithoutDot".
* Also check out {@link H5P.newRunnable}
*
* Used from libraries to construct instances of other libraries' objects by name.
*
* @param {string} name Name of library
* @returns {Object} Class constructor
*/
H5P.classFromName = function (name) {
var arr = name.split(".");
return this[arr[arr.length - 1]];
};
/**
* A safe way of creating a new instance of a runnable H5P.
*
* @param {Object} library
* Library/action object form params.
* @param {number} contentId
* Identifies the content.
* @param {H5P.jQuery} [$attachTo]
* Element to attach the instance to.
* @param {boolean} [skipResize]
* Skip triggering of the resize event after attaching.
* @param {Object} [extras]
* Extra parameters for the H5P content constructor
* @returns {Object}
* Instance.
*/
H5P.newRunnable = function (library, contentId, $attachTo, skipResize, extras) {
var nameSplit, versionSplit, machineName;
try {
nameSplit = library.library.split(' ', 2);
machineName = nameSplit[0];
versionSplit = nameSplit[1].split('.', 2);
}
catch (err) {
return H5P.error('Invalid library string: ' + library.library);
}
if ((library.params instanceof Object) !== true || (library.params instanceof Array) === true) {
H5P.error('Invalid library params for: ' + library.library);
return H5P.error(library.params);
}
// Find constructor function
var constructor;
try {
nameSplit = nameSplit[0].split('.');
constructor = window;
for (var i = 0; i < nameSplit.length; i++) {
constructor = constructor[nameSplit[i]];
}
if (typeof constructor !== 'function') {
throw null;
}
}
catch (err) {
return H5P.error('Unable to find constructor for: ' + library.library);
}
if (extras === undefined) {
extras = {};
}
if (library.subContentId) {
extras.subContentId = library.subContentId;
}
if (library.userDatas && library.userDatas.state && H5PIntegration.saveFreq) {
extras.previousState = library.userDatas.state;
}
// Makes all H5P libraries extend H5P.ContentType:
var standalone = extras.standalone || false;
// This order makes it possible for an H5P library to override H5P.ContentType functions!
constructor.prototype = H5P.jQuery.extend({}, H5P.ContentType(standalone).prototype, constructor.prototype);
var instance;
// Some old library versions have their own custom third parameter.
// Make sure we don't send them the extras.
// (they will interpret it as something else)
if (H5P.jQuery.inArray(library.library, ['H5P.CoursePresentation 1.0', 'H5P.CoursePresentation 1.1', 'H5P.CoursePresentation 1.2', 'H5P.CoursePresentation 1.3']) > -1) {
instance = new constructor(library.params, contentId);
}
else {
instance = new constructor(library.params, contentId, extras);
}
if (instance.$ === undefined) {
instance.$ = H5P.jQuery(instance);
}
if (instance.contentId === undefined) {
instance.contentId = contentId;
}
if (instance.subContentId === undefined && library.subContentId) {
instance.subContentId = library.subContentId;
}
if (instance.parent === undefined && extras && extras.parent) {
instance.parent = extras.parent;
}
if (instance.libraryInfo === undefined) {
instance.libraryInfo = {
versionedName: library.library,
versionedNameNoSpaces: machineName + '-' + versionSplit[0] + '.' + versionSplit[1],
machineName: machineName,
majorVersion: versionSplit[0],
minorVersion: versionSplit[1]
};
}
if ($attachTo !== undefined) {
$attachTo.toggleClass('h5p-standalone', standalone);
instance.attach($attachTo);
H5P.trigger(instance, 'domChanged', {
'$target': $attachTo,
'library': machineName,
'key': 'newLibrary'
}, {'bubbles': true, 'external': true});
if (skipResize === undefined || !skipResize) {
// Resize content.
H5P.trigger(instance, 'resize');
}
}
return instance;
};
/**
* Used to print useful error messages. (to JavaScript error console)
*
* @param {*} err Error to print.
*/
H5P.error = function (err) {
if (window.console !== undefined && console.error !== undefined) {
console.error(err.stack ? err.stack : err);
}
};
/**
* Translate text strings.
*
* @param {string} key
* Translation identifier, may only contain a-zA-Z0-9. No spaces or special chars.
* @param {Object} [vars]
* Data for placeholders.
* @param {string} [ns]
* Translation namespace. Defaults to H5P.
* @returns {string}
* Translated text
*/
H5P.t = function (key, vars, ns) {
if (ns === undefined) {
ns = 'H5P';
}
if (H5PIntegration.l10n[ns] === undefined) {
return '[Missing translation namespace "' + ns + '"]';
}
if (H5PIntegration.l10n[ns][key] === undefined) {
return '[Missing translation "' + key + '" in "' + ns + '"]';
}
var translation = H5PIntegration.l10n[ns][key];
if (vars !== undefined) {
// Replace placeholder with variables.
for (var placeholder in vars) {
translation = translation.replace(placeholder, vars[placeholder]);
}
}
return translation;
};
/**
* Creates a new popup dialog over the H5P content.
*
* @class
* @param {string} name
* Used for html class.
* @param {string} title
* Used for header.
* @param {string} content
* Displayed inside the dialog.
* @param {H5P.jQuery} $element
* Which DOM element the dialog should be inserted after.
*/
H5P.Dialog = function (name, title, content, $element) {
var self = this;
var $dialog = H5P.jQuery('<div class="h5p-popup-dialog h5p-' + name + '-dialog">\
<div class="h5p-inner">\
<h2>' + title + '</h2>\
<div class="h5p-scroll-content">' + content + '</div>\
<div class="h5p-close" role="button" tabindex="0" title="' + H5P.t('close') + '">\
</div>\
</div>')
.insertAfter($element)
.click(function () {
self.close();
})
.children('.h5p-inner')
.click(function () {
return false;
})
.find('.h5p-close')
.click(function () {
self.close();
})
.end()
.find('a')
.click(function (e) {
e.stopPropagation();
})
.end()
.end();
this.open = function () {
setTimeout(function () {
$dialog.addClass('h5p-open'); // Fade in
// Triggering an event, in case something has to be done after dialog has been opened.
H5P.jQuery(self).trigger('dialog-opened', [$dialog]);
}, 1);
};
this.close = function () {
$dialog.removeClass('h5p-open'); // Fade out
setTimeout(function () {
$dialog.remove();
}, 200);
};
};
/**
* Gather copyright information for the given content.
*
* @param {Object} instance
* H5P instance to get copyright information for.
* @param {Object} parameters
* Parameters of the content instance.
* @param {number} contentId
* Identifies the H5P content
* @returns {string} Copyright information.
*/
H5P.getCopyrights = function (instance, parameters, contentId) {
var copyrights;
if (instance.getCopyrights !== undefined) {
try {
// Use the instance's own copyright generator
copyrights = instance.getCopyrights();
}
catch (err) {
// Failed, prevent crashing page.
}
}
if (copyrights === undefined) {
// Create a generic flat copyright list
copyrights = new H5P.ContentCopyrights();
H5P.findCopyrights(copyrights, parameters, contentId);
}
if (copyrights !== undefined) {
// Convert to string
copyrights = copyrights.toString();
}
return copyrights;
};
/**
* Gather a flat list of copyright information from the given parameters.
*
* @param {H5P.ContentCopyrights} info
* Used to collect all information in.
* @param {(Object|Array)} parameters
* To search for file objects in.
* @param {number} contentId
* Used to insert thumbnails for images.
*/
H5P.findCopyrights = function (info, parameters, contentId) {
// Cycle through parameters
for (var field in parameters) {
if (!parameters.hasOwnProperty(field)) {
continue; // Do not check
}
var value = parameters[field];
if (value instanceof Array) {
// Cycle through array
H5P.findCopyrights(info, value, contentId);
}
else if (value instanceof Object) {
// Check if object is a file with copyrights
if (value.copyright === undefined ||
value.copyright.license === undefined ||
value.path === undefined ||
value.mime === undefined) {
// Nope, cycle throught object
H5P.findCopyrights(info, value, contentId);
}
else {
// Found file, add copyrights
var copyrights = new H5P.MediaCopyright(value.copyright);
if (value.width !== undefined && value.height !== undefined) {
copyrights.setThumbnail(new H5P.Thumbnail(H5P.getPath(value.path, contentId), value.width, value.height));
}
info.addMedia(copyrights);
}
}
else {
}
}
};
/**
* Display a dialog containing the embed code.
*
* @param {H5P.jQuery} $element
* Element to insert dialog after.
* @param {string} embedCode
* The embed code.
* @param {string} resizeCode
* The advanced resize code
* @param {Object} size
* The content's size.
* @param {number} size.width
* @param {number} size.height
*/
H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size) {
var fullEmbedCode = embedCode + resizeCode;
var dialog = new H5P.Dialog('embed', H5P.t('embed'), '<textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>' + H5P.t('size') + ': <input type="text" value="' + Math.ceil(size.width) + '" class="h5p-embed-size"/> × <input type="text" value="' + Math.ceil(size.height) + '" class="h5p-embed-size"/> px<br/><div role="button" tabindex="0" class="h5p-expander">' + H5P.t('showAdvanced') + '</div><div class="h5p-expander-content"><p>' + H5P.t('advancedHelp') + '</p><textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false">' + resizeCode + '</textarea></div>', $element);
// Selecting embed code when dialog is opened
H5P.jQuery(dialog).on('dialog-opened', function (event, $dialog) {
var $inner = $dialog.find('.h5p-inner');
var $scroll = $inner.find('.h5p-scroll-content');
var diff = $scroll.outerHeight() - $scroll.innerHeight();
var positionInner = function () {
var height = $inner.height();
if ($scroll[0].scrollHeight + diff > height) {
$inner.css('height', ''); // 100%
}
else {
$inner.css('height', 'auto');
height = $inner.height();
}
$inner.css('marginTop', '-' + (height / 2) + 'px');
};
// Handle changing of width/height
var $w = $dialog.find('.h5p-embed-size:eq(0)');
var $h = $dialog.find('.h5p-embed-size:eq(1)');
var getNum = function ($e, d) {
var num = parseFloat($e.val());
if (isNaN(num)) {
return d;
}
return Math.ceil(num);
};
var updateEmbed = function () {
$dialog.find('.h5p-embed-code-container:first').val(fullEmbedCode.replace(':w', getNum($w, size.width)).replace(':h', getNum($h, size.height)));
};
$w.change(updateEmbed);
$h.change(updateEmbed);
updateEmbed();
// Select text and expand textareas
$dialog.find('.h5p-embed-code-container').each(function(index, value) {
H5P.jQuery(this).css('height', this.scrollHeight + 'px').focus(function() {
H5P.jQuery(this).select();
});
});
$dialog.find('.h5p-embed-code-container').eq(0).select();
positionInner();
// Expand advanced embed
var expand = function () {
var $expander = H5P.jQuery(this);
var $content = $expander.next();
if ($content.is(':visible')) {
$expander.removeClass('h5p-open').text(H5P.t('showAdvanced'));
$content.hide();
}
else {
$expander.addClass('h5p-open').text(H5P.t('hideAdvanced'));
$content.show();
}
$dialog.find('.h5p-embed-code-container').each(function(index, value) {
H5P.jQuery(this).css('height', this.scrollHeight + 'px');
});
positionInner();
};
$dialog.find('.h5p-expander').click(expand).keypress(function (event) {
if (event.keyCode === 32) {
expand.apply(this);
}
});
});
dialog.open();
};
/**
* Copyrights for a H5P Content Library.
*
* @class
*/
H5P.ContentCopyrights = function () {
var label;
var media = [];
var content = [];
/**
* Set label.
*
* @param {string} newLabel
*/
this.setLabel = function (newLabel) {
label = newLabel;
};
/**
* Add sub content.
*
* @param {H5P.MediaCopyright} newMedia
*/
this.addMedia = function (newMedia) {
if (newMedia !== undefined) {
media.push(newMedia);
}
};
/**
* Add sub content.
*
* @param {H5P.ContentCopyrights} newContent
*/
this.addContent = function (newContent) {
if (newContent !== undefined) {
content.push(newContent);
}
};
/**
* Print content copyright.
*
* @returns {string} HTML.
*/
this.toString = function () {
var html = '';
// Add media rights
for (var i = 0; i < media.length; i++) {
html += media[i];
}
// Add sub content rights
for (i = 0; i < content.length; i++) {
html += content[i];
}
if (html !== '') {
// Add a label to this info
if (label !== undefined) {
html = '<h3>' + label + '</h3>' + html;
}
// Add wrapper
html = '<div class="h5p-content-copyrights">' + html + '</div>';
}
return html;
};
};
/**
* A ordered list of copyright fields for media.
*
* @class
* @param {Object} copyright
* Copyright information fields.
* @param {Object} [labels]
* Translation of labels.
* @param {Array} [order]
* Order of the fields.
* @param {Object} [extraFields]
* Add extra copyright fields.
*/
H5P.MediaCopyright = function (copyright, labels, order, extraFields) {
var thumbnail;
var list = new H5P.DefinitionList();
/**
* Get translated label for field.
*
* @private
* @param {string} fieldName
* @returns {string}
*/
var getLabel = function (fieldName) {
if (labels === undefined || labels[fieldName] === undefined) {
return H5P.t(fieldName);
}
return labels[fieldName];
};
/**
* Get humanized value for field.
*
* @private
* @param {string} fieldName
* @param {string} value
* @returns {string}
*/
var humanizeValue = function (fieldName, value) {
if (fieldName === 'license') {
return H5P.copyrightLicenses[value];
}
return value;
};
if (copyright !== undefined) {
// Add the extra fields
for (var field in extraFields) {
if (extraFields.hasOwnProperty(field)) {
copyright[field] = extraFields[field];
}
}
if (order === undefined) {
// Set default order
order = ['title', 'author', 'year', 'source', 'license'];
}
for (var i = 0; i < order.length; i++) {
var fieldName = order[i];
if (copyright[fieldName] !== undefined) {
list.add(new H5P.Field(getLabel(fieldName), humanizeValue(fieldName, copyright[fieldName])));
}
}
}
/**
* Set thumbnail.
*
* @param {H5P.Thumbnail} newThumbnail
*/
this.setThumbnail = function (newThumbnail) {
thumbnail = newThumbnail;
};
/**
* Checks if this copyright is undisclosed.
* I.e. only has the license attribute set, and it's undisclosed.
*
* @returns {boolean}
*/
this.undisclosed = function () {
if (list.size() === 1) {
var field = list.get(0);
if (field.getLabel() === getLabel('license') && field.getValue() === humanizeValue('license', 'U')) {
return true;
}
}
return false;
};
/**
* Print media copyright.
*
* @returns {string} HTML.
*/
this.toString = function () {
var html = '';
if (this.undisclosed()) {
return html; // No need to print a copyright with a single undisclosed license.
}
if (thumbnail !== undefined) {
html += thumbnail;
}
html += list;
if (html !== '') {
html = '<div class="h5p-media-copyright">' + html + '</div>';
}
return html;
};
};
/**
* Maps copyright license codes to their human readable counterpart.
*
* @type {Object}
*/
H5P.copyrightLicenses = {
'U': 'Undisclosed',
'CC BY': '<a href="http://creativecommons.org/licenses/by/4.0/legalcode" target="_blank">Attribution 4.0</a>',
'CC BY-SA': '<a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode" target="_blank">Attribution-ShareAlike 4.0</a>',
'CC BY-ND': '<a href="https://creativecommons.org/licenses/by-nd/4.0/legalcode" target="_blank">Attribution-NoDerivs 4.0</a>',
'CC BY-NC': '<a href="https://creativecommons.org/licenses/by-nc/4.0/legalcode" target="_blank">Attribution-NonCommercial 4.0</a>',
'CC BY-NC-SA': '<a href="https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode" target="_blank">Attribution-NonCommercial-ShareAlike 4.0</a>',
'CC BY-NC-ND': '<a href="https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode" target="_blank">Attribution-NonCommercial-NoDerivs 4.0</a>',
'GNU GPL': '<a href="http://www.gnu.org/licenses/gpl-3.0-standalone.html" target="_blank">General Public License v3</a>',
'PD': 'Public Domain',
'ODC PDDL': '<a href="http://opendatacommons.org/licenses/pddl/1.0/" target="_blank">Public Domain Dedication and Licence</a>',
'CC PDM': 'Public Domain Mark',
'C': 'Copyright'
};
/**
* A simple and elegant class for creating thumbnails of images.
*
* @class
* @param {string} source
* @param {number} width
* @param {number} height
*/
H5P.Thumbnail = function (source, width, height) {
var thumbWidth, thumbHeight = 100;
if (width !== undefined) {
thumbWidth = Math.round(thumbHeight * (width / height));
}
/**
* Print thumbnail.
*
* @returns {string} HTML.
*/
this.toString = function () {
return '<img src="' + source + '" alt="' + H5P.t('thumbnail') + '" class="h5p-thumbnail" height="' + thumbHeight + '"' + (thumbWidth === undefined ? '' : ' width="' + thumbWidth + '"') + '/>';
};
};
/**
* Simple data structure class for storing a single field.
*
* @class
* @param {string} label
* @param {string} value
*/
H5P.Field = function (label, value) {
/**
* Public. Get field label.
*
* @returns {String}
*/
this.getLabel = function () {
return label;
};
/**
* Public. Get field value.
*
* @returns {String}
*/
this.getValue = function () {
return value;
};
};
/**
* Simple class for creating a definition list.
*
* @class
*/
H5P.DefinitionList = function () {
var fields = [];
/**
* Add field to list.
*
* @param {H5P.Field} field
*/
this.add = function (field) {
fields.push(field);
};
/**
* Get Number of fields.
*
* @returns {number}
*/
this.size = function () {
return fields.length;
};
/**
* Get field at given index.
*
* @param {number} index
* @returns {H5P.Field}
*/
this.get = function (index) {
return fields[index];
};
/**
* Print definition list.
*
* @returns {string} HTML.
*/
this.toString = function () {
var html = '';
for (var i = 0; i < fields.length; i++) {
var field = fields[i];
html += '<dt>' + field.getLabel() + '</dt><dd>' + field.getValue() + '</dd>';
}
return (html === '' ? html : '<dl class="h5p-definition-list">' + html + '</dl>');
};
};
/**
* THIS FUNCTION/CLASS IS DEPRECATED AND WILL BE REMOVED.
*
* Helper object for keeping coordinates in the same format all over.
*
* @deprecated
* Will be removed march 2016.
* @class
* @param {number} x
* @param {number} y
* @param {number} w
* @param {number} h
*/
H5P.Coords = function (x, y, w, h) {
if ( !(this instanceof H5P.Coords) )
return new H5P.Coords(x, y, w, h);
/** @member {number} */
this.x = 0;
/** @member {number} */
this.y = 0;
/** @member {number} */
this.w = 1;
/** @member {number} */
this.h = 1;
if (typeof(x) === 'object') {
this.x = x.x;
this.y = x.y;
this.w = x.w;
this.h = x.h;
} else {
if (x !== undefined) {
this.x = x;
}
if (y !== undefined) {
this.y = y;
}
if (w !== undefined) {
this.w = w;
}
if (h !== undefined) {
this.h = h;
}
}
return this;
};
/**
* Parse library string into values.
*
* @param {string} library
* library in the format "machineName majorVersion.minorVersion"
* @returns {Object}
* library as an object with machineName, majorVersion and minorVersion properties
* return false if the library parameter is invalid
*/
H5P.libraryFromString = function (library) {
var regExp = /(.+)\s(\d+)\.(\d+)$/g;
var res = regExp.exec(library);
if (res !== null) {
return {
'machineName': res[1],
'majorVersion': res[2],
'minorVersion': res[3]
};
}
else {
return false;
}
};
/**
* Get the path to the library
*
* @param {string} library
* The library identifier in the format "machineName-majorVersion.minorVersion".
* @returns {string}
* The full path to the library.
*/
H5P.getLibraryPath = function (library) {
return (H5PIntegration.libraryUrl !== undefined ? H5PIntegration.libraryUrl + '/' : H5PIntegration.url + '/libraries/') + library;
};
/**
* Recursivly clone the given object.
*
* @param {Object|Array} object
* Object to clone.
* @param {boolean} [recursive]
* @returns {Object|Array}
* A clone of object.
*/
H5P.cloneObject = function (object, recursive) {
// TODO: Consider if this needs to be in core. Doesn't $.extend do the same?
var clone = object instanceof Array ? [] : {};
for (var i in object) {
if (object.hasOwnProperty(i)) {
if (recursive !== undefined && recursive && typeof object[i] === 'object') {
clone[i] = H5P.cloneObject(object[i], recursive);
}
else {
clone[i] = object[i];
}
}
}
return clone;
};
/**
* Remove all empty spaces before and after the value.
*
* @param {string} value
* @returns {string}
*/
H5P.trim = function (value) {
return value.replace(/^\s+|\s+$/g, '');
// TODO: Only include this or String.trim(). What is best?
// I'm leaning towards implementing the missing ones: http://kangax.github.io/compat-table/es5/
// So should we make this function deprecated?
};
/**
* Check if JavaScript path/key is loaded.
*
* @param {string} path
* @returns {boolean}
*/
H5P.jsLoaded = function (path) {
H5PIntegration.loadedJs = H5PIntegration.loadedJs || [];
return H5P.jQuery.inArray(path, H5PIntegration.loadedJs) !== -1;
};
/**
* Check if styles path/key is loaded.
*
* @param {string} path
* @returns {boolean}
*/
H5P.cssLoaded = function (path) {
H5PIntegration.loadedCss = H5PIntegration.loadedCss || [];
return H5P.jQuery.inArray(path, H5PIntegration.loadedCss) !== -1;
};
/**
* Shuffle an array in place.
*
* @param {Array} array
* Array to shuffle
* @returns {Array}
* The passed array is returned for chaining.
*/
H5P.shuffleArray = function (array) {
// TODO: Consider if this should be a part of core. I'm guessing very few libraries are going to use it.
if (!(array instanceof Array)) {
return;
}
var i = array.length, j, tempi, tempj;
if ( i === 0 ) return false;
while ( --i ) {
j = Math.floor( Math.random() * ( i + 1 ) );
tempi = array[i];
tempj = array[j];
array[i] = tempj;
array[j] = tempi;
}
return array;
};
/**
* Post finished results for user.
*
* @deprecated
* Do not use this function directly, trigger the finish event instead.
* Will be removed march 2016
* @param {number} contentId
* Identifies the content
* @param {number} score
* Achieved score/points
* @param {number} maxScore
* The maximum score/points that can be achieved
* @param {number} [time]
* Reported time consumption/usage
*/
H5P.setFinished = function (contentId, score, maxScore, time) {
if (H5PIntegration.postUserStatistics === true) {
/**
* Return unix timestamp for the given JS Date.
*
* @private
* @param {Date} date
* @returns {Number}
*/
var toUnix = function (date) {
return Math.round(date.getTime() / 1000);
};
// Post the results
H5P.jQuery.post(H5PIntegration.ajax.setFinished, {
contentId: contentId,
score: score,
maxScore: maxScore,
opened: toUnix(H5P.opened[contentId]),
finished: toUnix(new Date()),
time: time,
token: H5PIntegration.tokens.result
});
}
};
// Add indexOf to browsers that lack them. (IEs)
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (needle) {
for (var i = 0; i < this.length; i++) {
if (this[i] === needle) {
return i;
}
}
return -1;
};
}
// Need to define trim() since this is not available on older IEs,
// and trim is used in several libs
if (String.prototype.trim === undefined) {
String.prototype.trim = function () {
return H5P.trim(this);
};
}
/**
* Trigger an event on an instance
*
* Helper function that triggers an event if the instance supports event handling
*
* @param {Object} instance
* Instance of H5P content
* @param {string} eventType
* Type of event to trigger
* @param {*} data
* @param {Object} extras
*/
H5P.trigger = function (instance, eventType, data, extras) {
// Try new event system first
if (instance.trigger !== undefined) {
instance.trigger(eventType, data, extras);
}
// Try deprecated event system
else if (instance.$ !== undefined && instance.$.trigger !== undefined) {
instance.$.trigger(eventType);
}
};
/**
* Register an event handler
*
* Helper function that registers an event handler for an event type if
* the instance supports event handling
*
* @param {Object} instance
* Instance of H5P content
* @param {string} eventType
* Type of event to listen for
* @param {H5P.EventCallback} handler
* Callback that gets triggered for events of the specified type
*/
H5P.on = function (instance, eventType, handler) {
// Try new event system first
if (instance.on !== undefined) {
instance.on(eventType, handler);
}
// Try deprecated event system
else if (instance.$ !== undefined && instance.$.on !== undefined) {
instance.$.on(eventType, handler);
}
};
/**
* Generate random UUID
*
* @returns {string} UUID
*/
H5P.createUUID = function () {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(char) {
var random = Math.random()*16|0, newChar = char === 'x' ? random : (random&0x3|0x8);
return newChar.toString(16);
});
};
/**
* Create title
*
* @param {string} rawTitle
* @param {number} maxLength
* @returns {string}
*/
H5P.createTitle = function (rawTitle, maxLength) {
if (!rawTitle) {
return '';
}
if (maxLength === undefined) {
maxLength = 60;
}
var title = H5P.jQuery('<div></div>')
.text(
// Strip tags
rawTitle.replace(/(<([^>]+)>)/ig,"")
// Escape
).text();
if (title.length > maxLength) {
title = title.substr(0, maxLength - 3) + '...';
}
return title;
};
// Wrap in privates
(function ($) {
/**
* Creates ajax requests for inserting, updateing and deleteing
* content user data.
*
* @private
* @param {number} contentId What content to store the data for.
* @param {string} dataType Identifies the set of data for this content.
* @param {string} subContentId Identifies sub content
* @param {function} [done] Callback when ajax is done.
* @param {object} [data] To be stored for future use.
* @param {boolean} [preload=false] Data is loaded when content is loaded.
* @param {boolean} [invalidate=false] Data is invalidated when content changes.
* @param {boolean} [async=true]
*/
function contentUserDataAjax(contentId, dataType, subContentId, done, data, preload, invalidate, async) {
if (H5PIntegration.user === undefined) {
// Not logged in, no use in saving.
done('Not signed in.');
return;
}
var options = {
url: H5PIntegration.ajax.contentUserData.replace(':contentId', contentId).replace(':dataType', dataType).replace(':subContentId', subContentId ? subContentId : 0),
dataType: 'json',
async: async === undefined ? true : async
};
if (data !== undefined) {
options.type = 'POST';
options.data = {
data: (data === null ? 0 : data),
preload: (preload ? 1 : 0),
invalidate: (invalidate ? 1 : 0),
token: H5PIntegration.tokens.contentUserData
};
}
else {
options.type = 'GET';
}
if (done !== undefined) {
options.error = function (xhr, error) {
done(error);
};
options.success = function (response) {
if (!response.success) {
done(response.message);
return;
}
if (response.data === false || response.data === undefined) {
done();
return;
}
done(undefined, response.data);
};
}
$.ajax(options);
}
/**
* Get user data for given content.
*
* @param {number} contentId
* What content to get data for.
* @param {string} dataId
* Identifies the set of data for this content.
* @param {function} done
* Callback with error and data parameters.
* @param {string} [subContentId]
* Identifies which data belongs to sub content.
*/
H5P.getUserData = function (contentId, dataId, done, subContentId) {
if (!subContentId) {
subContentId = 0; // Default
}
H5PIntegration.contents = H5PIntegration.contents || {};
var content = H5PIntegration.contents['cid-' + contentId] || {};
var preloadedData = content.contentUserData;
if (preloadedData && preloadedData[subContentId] && preloadedData[subContentId][dataId]) {
if (preloadedData[subContentId][dataId] === 'RESET') {
done(undefined, null);
return;
}
try {
done(undefined, JSON.parse(preloadedData[subContentId][dataId]));
}
catch (err) {
done(err);
}
}
else {
contentUserDataAjax(contentId, dataId, subContentId, function (err, data) {
if (err || data === undefined) {
done(err, data);
return; // Error or no data
}
// Cache in preloaded
if (content.contentUserData === undefined) {
content.contentUserData = preloadedData = {};
}
if (preloadedData[subContentId] === undefined) {
preloadedData[subContentId] = {};
}
preloadedData[subContentId][dataId] = data;
// Done. Try to decode JSON
try {
done(undefined, JSON.parse(data));
}
catch (e) {
done(e);
}
});
}
};
/**
* Async error handling.
*
* @callback H5P.ErrorCallback
* @param {*} error
*/
/**
* Set user data for given content.
*
* @param {number} contentId
* What content to get data for.
* @param {string} dataId
* Identifies the set of data for this content.
* @param {Object} data
* The data that is to be stored.
* @param {Object} [extras]
* Extra properties
* @param {string} [extras.subContentId]
* Identifies which data belongs to sub content.
* @param {boolean} [extras.preloaded=true]
* If the data should be loaded when content is loaded.
* @param {boolean} [extras.deleteOnChange=false]
* If the data should be invalidated when the content changes.
* @param {H5P.ErrorCallback} [extras.errorCallback]
* Callback with error as parameters.
* @param {boolean} [extras.async=true]
*/
H5P.setUserData = function (contentId, dataId, data, extras) {
var options = H5P.jQuery.extend(true, {}, {
subContentId: 0,
preloaded: true,
deleteOnChange: false,
async: true
}, extras);
try {
data = JSON.stringify(data);
}
catch (err) {
if (options.errorCallback) {
options.errorCallback(err);
}
return; // Failed to serialize.
}
var content = H5PIntegration.contents['cid-' + contentId];
if (content === undefined) {
content = H5PIntegration.contents['cid-' + contentId] = {};
}
if (!content.contentUserData) {
content.contentUserData = {};
}
var preloadedData = content.contentUserData;
if (preloadedData[options.subContentId] === undefined) {
preloadedData[options.subContentId] = {};
}
if (data === preloadedData[options.subContentId][dataId]) {
return; // No need to save this twice.
}
preloadedData[options.subContentId][dataId] = data;
contentUserDataAjax(contentId, dataId, options.subContentId, function (error, data) {
if (options.errorCallback && error) {
options.errorCallback(error);
}
}, data, options.preloaded, options.deleteOnChange, options.async);
};
/**
* Delete user data for given content.
*
* @param {number} contentId
* What content to remove data for.
* @param {string} dataId
* Identifies the set of data for this content.
* @param {string} [subContentId]
* Identifies which data belongs to sub content.
*/
H5P.deleteUserData = function (contentId, dataId, subContentId) {
if (!subContentId) {
subContentId = 0; // Default
}
// Remove from preloaded/cache
var preloadedData = H5PIntegration.contents['cid-' + contentId].contentUserData;
if (preloadedData && preloadedData[subContentId] && preloadedData[subContentId][dataId]) {
delete preloadedData[subContentId][dataId];
}
contentUserDataAjax(contentId, dataId, subContentId, undefined, null);
};
// Init H5P when page is fully loadded
$(document).ready(function () {
/**
* Prevent H5P Core from initializing. Must be overriden before document ready.
* @member {boolean} H5P.preventInit
*/
if (!H5P.preventInit) {
// Note that this start script has to be an external resource for it to
// load in correct order in IE9.
H5P.init(document.body);
}
if (H5PIntegration.saveFreq !== false) {
// When was the last state stored
var lastStoredOn = 0;
// Store the current state of the H5P when leaving the page.
var storeCurrentState = function () {
// Make sure at least 250 ms has passed since last save
var currentTime = new Date().getTime();
if (currentTime - lastStoredOn > 250) {
lastStoredOn = currentTime;
for (var i = 0; i < H5P.instances.length; i++) {
var instance = H5P.instances[i];
if (instance.getCurrentState instanceof Function ||
typeof instance.getCurrentState === 'function') {
var state = instance.getCurrentState();
if (state !== undefined) {
// Async is not used to prevent the request from being cancelled.
H5P.setUserData(instance.contentId, 'state', state, {deleteOnChange: true, async: false});
}
}
}
}
};
// iPad does not support beforeunload, therefore using unload
H5P.$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);
}
/**
* Indicates if H5P is embedded on an external page using iframe.
* @member {boolean} H5P.externalEmbed
*/
// Relay events to top window.
if (H5P.isFramed && H5P.externalEmbed === false) {
H5P.externalDispatcher.on('*', function (event) {
window.parent.H5P.externalDispatcher.trigger.call(this, event);
});
}
});
})(H5P.jQuery);