h5p-php-library/js/h5p.js

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var H5P = H5P || {};
// Determine if we're inside an iframe.
H5P.isFramed = (window.self !== window.top);
// Useful jQuery object.
H5P.$window = H5P.jQuery(window);
// Detect if we support fullscreen, and what prefix to use.
if (document.documentElement.requestFullScreen) {
H5P.fullScreenBrowserPrefix = '';
}
else if (document.documentElement.webkitRequestFullScreen
&& navigator.userAgent.indexOf('Android') === -1 // Skip Android
&& navigator.userAgent.indexOf('Version/') === -1 // Skip Safari
) {
H5P.fullScreenBrowserPrefix = 'webkit';
}
else if (document.documentElement.mozRequestFullScreen) {
H5P.fullScreenBrowserPrefix = 'moz';
}
else if (document.documentElement.msRequestFullscreen) {
H5P.fullScreenBrowserPrefix = 'ms';
}
/**
* Initialize H5P content.
* Scans for ".h5p-content" in the document and initializes H5P instances where found.
*/
H5P.init = function () {
// Useful jQuery object.
H5P.$body = H5P.jQuery('body');
// Prepare internal resizer for content.
var $window = H5P.jQuery(window.top);
// H5Ps added in normal DIV.
var $containers = H5P.jQuery(".h5p-content").each(function () {
var $element = H5P.jQuery(this);
var $container = H5P.jQuery('<div class="h5p-container"></div>').appendTo($element);
var contentId = $element.data('content-id');
var contentData = H5PIntegration.getContentData(contentId);
if (contentData === undefined) {
return H5P.error('No data for content id ' + contentId + '. Perhaps the library is gone?');
}
var library = {
library: contentData.library,
params: H5P.jQuery.parseJSON(contentData.jsonContent)
};
// Create new instance.
var instance = H5P.newRunnable(library, contentId);
instance.attach($container); // Not sent to newRunnable to avoid resize.
// Check if we should add and display a fullscreen button for this H5P.
if (contentData.fullScreen == 1) {
H5P.jQuery('<div class="h5p-content-controls"><div role="button" tabindex="1" class="h5p-enable-fullscreen" title="' + H5P.t('fullscreen') + '"></div></div>').prependTo($container).children().click(function () {
H5P.fullScreen($container, instance);
});
};
var $actions = H5P.jQuery('<ul class="h5p-actions"></ul>');
if (contentData.export !== '') {
// Display export button
H5P.jQuery('<li class="h5p-button h5p-export" role="button" tabindex="1" title="' + H5P.t('downloadDescription') + '">' + H5P.t('download') + '</li>').appendTo($actions).click(function () {
window.location.href = contentData.export;
});
}
if (instance.getCopyrights !== undefined) {
// Display copyrights button
H5P.jQuery('<li class="h5p-button h5p-copyrights" role="button" tabindex="1" title="' + H5P.t('copyrightsDescription') + '">' + H5P.t('copyrights') + '</li>').appendTo($actions).click(function () {
H5P.openCopyrightsDialog($actions, instance);
});
}
if (contentData.embedCode !== undefined) {
// Display embed button
H5P.jQuery('<li class="h5p-button h5p-embed" role="button" tabindex="1" title="' + H5P.t('embedDescription') + '">' + H5P.t('embed') + '</li>').appendTo($actions).click(function () {
H5P.openEmbedDialog($actions, contentData.embedCode);
});
}
if (H5PIntegration.showH5PIconInActionBar()) {
H5P.jQuery('<li><a class="h5p-link" href="http://h5p.org" target="_blank" title="' + H5P.t('h5pDescription') + '"></a></li>').appendTo($actions);
}
$actions.insertAfter($container);
if (H5P.isFramed) {
// 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 () {
// Use timeout to make sure the iframe is resized
setTimeout(function () {
var fullscreen = $container.hasClass('h5p-fullscreen') || $container.hasClass('h5p-semi-fullscreen');
if (!fullscreen) {
// Retain parent size to avoid jumping/scrolling
var parentHeight = iframe.parentElement.style.height;
iframe.parentElement.style.height = iframe.parentElement.clientHeight + 'px';
// Reset iframe height, incase content has shrinked.
iframe.style.height = '1px';
// Resize iframe so all content is visible.
iframe.style.height = (iframe.contentDocument.body.scrollHeight) + 'px';
// Free parent
iframe.parentElement.style.height = parentHeight;
}
}, 1);
};
if (instance.$ !== undefined) {
instance.$.on('resize', resizeIframe);
}
}
var resize = function () {
if (instance.$ !== undefined) {
// Resize content.
instance.$.trigger('resize');
}
};
resize();
// Resize everything when window is resized.
$window.resize(resize);
});
// Insert H5Ps that should be in iframes.
H5P.jQuery("iframe.h5p-iframe").each(function () {
var $iframe = H5P.jQuery(this);
var contentId = $iframe.data('content-id');
// DEPRECATED AND WILL BE REMOVED. MAKE SURE YOUR H5Ps EXPOSES A $ AND A resize FUNCTION.
$iframe.ready(function () {
resizeIframeInterval = setInterval(function () {
if (H5P.isFullscreen) {
return;
}
var $doc = $iframe.contents();
var contentHeight = $doc.height();
var frameHeight = $iframe.innerHeight();
if (frameHeight !== contentHeight) {
$iframe.css('height', contentHeight + 'px');
$doc[0].documentElement.style.overflow = 'hidden';
}
}, 500);
});
// END DEPRECATION
this.contentDocument.open();
this.contentDocument.write('<!doctype html><html class="h5p-iframe"><head>' + H5PIntegration.getHeadTags(contentId) + '</head><body><div class="h5p-content" data-content-id="' + contentId + '"/></body></html>');
this.contentDocument.close();
});
};
/**
* Enable full screen for the given h5p.
*
* @param {jQuery} $element Content container.
* @param {object} instance
* @param {function} exitCallback Callback function called when user exits fullscreen.
* @param {jQuery} $body For internal use. Gives the body of the iframe.
* @returns {undefined}
*/
H5P.fullScreen = function ($element, instance, exitCallback, body) {
if (H5P.isFramed) {
// Trigger resize on wrapper in parent window.
window.parent.H5P.fullScreen($element, instance, exitCallback, H5P.$body.get());
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);
var done = function (c) {
H5P.isFullscreen = false;
$classes.removeClass(c);
if (H5P.fullScreenBrowserPrefix === undefined) {
// Resize content.
if (instance.$ !== undefined) {
instance.$.trigger('resize');
}
else if (instance.resize !== undefined) {
instance.resize();
}
}
if (exitCallback !== undefined) {
exitCallback();
}
};
if (H5P.fullScreenBrowserPrefix === undefined) {
// Create semi fullscreen.
$classes.addClass('h5p-semi-fullscreen');
H5P.isFullscreen = true;
var $disable = $container.prepend('<a href="#" class="h5p-disable-fullscreen" title="Disable fullscreen"></a>').children(':first');
var keyup, disableSemiFullscreen = function () {
$disable.remove();
$body.unbind('keyup', keyup);
done('h5p-semi-fullscreen');
return false;
};
keyup = function (event) {
if (event.keyCode === 27) {
disableSemiFullscreen();
}
};
$disable.click(disableSemiFullscreen);
$body.keyup(keyup);
}
else {
// Create real fullscreen.
var first, eventName = (H5P.fullScreenBrowserPrefix === 'ms' ? 'MSFullscreenChange' : H5P.fullScreenBrowserPrefix + 'fullscreenchange');
H5P.isFullscreen = true;
document.addEventListener(eventName, function () {
if (first === undefined) {
first = false;
return;
}
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' ? Element.ALLOW_KEYBOARD_INPUT : undefined);
$element[0][method](params);
}
$classes.addClass('h5p-fullscreen');
}
if ($iframe !== undefined) {
// Set iframe to its default size(100%).
$iframe.css('height', '');
}
if (H5P.fullScreenBrowserPrefix === undefined) {
// Resize content.
if (instance.$ !== undefined) {
instance.$.trigger('resize');
}
else if (instance.resize !== undefined) {
instance.resize();
}
}
// Allow H5P to set focus when entering fullscreen mode
if (instance.focus !== undefined) {
instance.focus();
}
};
/**
* Find the path to the content files based on the id of the content
*
* Also identifies and returns absolute paths
*
* @param string path
* Absolute path to a file, or relative path to a file in the content folder
* @param contentId
* Id of the content requesting a path
*/
H5P.getPath = function (path, contentId) {
if (path.substr(0, 7) === 'http://' || path.substr(0, 8) === 'https://') {
return path;
}
return H5PIntegration.getContentPath(contentId) + path;
};
/**
* THIS FUNCTION IS DEPRECATED, USE getPath INSTEAD
*
* Find the path to the content files folder based on the id of the content
*
* @param contentId
* Id of the content requesting a path
*/
H5P.getContentPath = function (contentId) {
return H5PIntegration.getContentPath(contentId);
};
/**
* Get library class constructor from H5P by classname.
* Note that this class will only work for resolve "H5P.NameWithoutDot".
* Also check out: H5P.newRunnable
*
* Used from libraries to construct instances of other libraries' objects by name.
*
* @param {string} name Name of library
* @returns 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.
*
* TODO: Should we check if version matches the library?
* TODO: Dynamically try to load libraries currently not loaded? That will require a callback.
*
* @param {Object} library Library/action object form params.
* @param {Number} contentId
* @param {jQuery} $attachTo The element to attach the new instance to.
* @return {Object} Instance.
*/
H5P.newRunnable = function (library, contentId, $attachTo) {
try {
var nameSplit = library.library.split(' ', 2);
var versionSplit = nameSplit[1].split('.', 2);
}
catch (err) {
return H5P.error('Invalid library string: ' + library.library);
}
if ((library.params instanceof Object) !== true || (library.params instanceof Array) === true) {
H5P.error('Invalid library params for: ' + library.library);
return H5P.error(library.params);
}
// Find constructor function
try {
nameSplit = nameSplit[0].split('.');
var constructor = window;
for (var i = 0; i < nameSplit.length; i++) {
constructor = constructor[nameSplit[i]];
};
if (typeof constructor !== 'function') {
throw null;
}
}
catch (err) {
return H5P.error('Unable to find constructor for: ' + library.library);
}
var instance = new constructor(library.params, contentId);
if ($attachTo !== undefined) {
instance.attach($attachTo);
if (instance.$ !== undefined) {
// Resize content.
instance.$.trigger('resize');
}
}
return instance;
};
/**
* Used to print useful error messages.
*
* @param {mixed} err Error to print.
* @returns {undefined}
*/
H5P.error = function (err) {
if (window['console'] !== undefined && console.error !== undefined) {
console.error(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} Text
*/
H5P.t = function (key, vars, ns) {
if (ns === undefined) {
ns = 'H5P';
}
if (H5PIntegration.i18n[ns] === undefined) {
return '[Missing translation namespace "' + ns + '"]';
}
if (H5PIntegration.i18n[ns][key] === undefined) {
return '[Missing translation "' + key + '" in "' + ns + '"]';
}
var translation = H5PIntegration.i18n[ns][key];
if (vars !== undefined) {
// Replace placeholder with variables.
for (var placeholder in vars) {
translation = translation.replace(placeholder, vars[placeholder]);
}
}
return translation;
};
H5P.Dialog = function (name, title, content, $element) {
var self = this;
var $dialog = H5P.jQuery('<div class="h5p-popup-dialog h5p-' + name + '-dialog">\
<div class="h5p-inner">\
<h2>' + title + '</h2>\
<div class="h5p-scroll-content">' + content + '</div>\
<div class="h5p-close" role="button" tabindex="1" title="' + H5P.t('close') + '">\
</div>\
</div>')
.insertAfter($element)
.click(function () {
self.close();
})
.children('.h5p-inner')
.click(function () {
return false;
})
.find('.h5p-close')
.click(function () {
self.close();
})
.end()
.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 and display in a dialog over the content.
*
* @param {jQuery} $element to insert dialog after.
* @param {object} instance to get copyright information from.
* @returns {undefined}
*/
H5P.openCopyrightsDialog = function ($element, instance) {
var copyrights = instance.getCopyrights();
if (copyrights !== undefined) {
copyrights = copyrights.toString();
}
if (copyrights === undefined || copyrights === '') {
copyrights = H5P.t('noCopyrights');
}
var dialog = new H5P.Dialog('copyrights', H5P.t('copyrightInformation'), copyrights, $element);
dialog.open();
};
/**
* Display a dialog containing the embed code.
*
* @param {jQuery} $element to insert dialog after.
* @param {string} embed code.
* @returns {undefined}
*/
H5P.openEmbedDialog = function ($element, embedCode) {
var dialog = new H5P.Dialog('embed', H5P.t('embed'), '<textarea class="h5p-embed-code-container">' + embedCode + '</textarea>', $element);
// Selecting embed code when dialog is opened
H5P.jQuery(dialog).on('dialog-opened', function (event, $dialog) {
$dialog.find('.h5p-embed-code-container').select();
});
dialog.open();
};
/**
* Copyrights for a H5P Content Library.
*/
H5P.ContentCopyrights = function () {
var label;
var media = [];
var content = [];
/**
* Public. Set label.
*
* @param {String} newLabel
*/
this.setLabel = function (newLabel) {
label = newLabel;
};
/**
* Public. Add sub content.
*
* @param {H5P.MediaCopyright} newMedia
*/
this.addMedia = function (newMedia) {
if (newMedia !== undefined) {
media.push(newMedia);
}
};
/**
* Public. Add sub content.
*
* @param {H5P.ContentCopyrights} newContent
*/
this.addContent = function (newContent) {
if (newContent !== undefined) {
content.push(newContent);
}
};
/**
* Public. 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 (var 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.
*
* @param {Object} copyright information fields.
* @param {Object} labels translation. Optional.
* @param {Array} order of fields. Optional.
* @param {Object} extraFields for copyright. Optional.
*/
H5P.MediaCopyright = function (copyright, labels, order, extraFields) {
var thumbnail;
var list = new H5P.DefinitionList();
/**
* Private. Get translated label for field.
*
* @param {String} fieldName
* @return {String}
*/
var getLabel = function (fieldName) {
if (labels === undefined || labels[fieldName] === undefined) {
return H5P.t(fieldName);
}
return labels[fieldName];
};
/**
* Private. Get humanized value for field.
*
* @param {String} fieldName
* @return {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])));
}
}
}
/**
* Public. Set thumbnail.
*
* @param {H5P.Thumbnail} newThumbnail
*/
this.setThumbnail = function (newThumbnail) {
thumbnail = newThumbnail;
};
/**
* Public. 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;
};
/**
* Public. 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;
};
}
// Translate table for copyright license codes.
H5P.copyrightLicenses = {
'U': 'Undisclosed',
'CC BY': 'Attribution',
'CC BY-SA': 'Attribution-ShareAlike',
'CC BY-ND': 'Attribution-NoDerivs',
'CC BY-NC': 'Attribution-NonCommercial',
'CC BY-NC-SA': 'Attribution-NonCommercial-ShareAlike',
'CC BY-NC-ND': 'Attribution-NonCommercial-NoDerivs',
'GNU GPL': 'General Public License',
'PD': 'Public Domain',
'ODC PDDL': 'Public Domain Dedication and Licence',
'CC PDM': 'Public Domain Mark',
'C': 'Copyright'
};
/**
* Simple class for creating thumbnails for images.
*
* @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));
}
/**
* Public. 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 class for storing a single field.
*/
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.
*/
H5P.DefinitionList = function () {
var fields = [];
/**
* Public. Add field to list.
*
* @param {H5P.Field} field
*/
this.add = function (field) {
fields.push(field);
};
/**
* Public. Get Number of fields.
*
* @returns {Number}
*/
this.size = function () {
return fields.length;
};
/**
* Public. Get field at given index.
*
* @param {Number} index
* @returns {Object}
*/
this.get = function (index) {
return fields[index];
};
/**
* Public. 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.
*/
H5P.Coords = function (x, y, w, h) {
if ( !(this instanceof H5P.Coords) )
return new H5P.Coords(x, y, w, h);
this.x = 0;
this.y = 0;
this.w = 1;
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
* 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.getLibraryPath(library);
};
/**
* Recursivly clone the given object.
* TODO: Consider if this needs to be in core. Doesn't $.extend do the same?
*
* @param {object} object Object to clone.
* @param {type} recursive
* @returns {object} A clone of object.
*/
H5P.cloneObject = function (object, recursive) {
var clone = object instanceof Array ? [] : {};
for (var i in object) {
if (object.hasOwnProperty(i)) {
if (recursive !== undefined && recursive && typeof object[i] === 'object') {
clone[i] = H5P.cloneObject(object[i], recursive);
}
else {
clone[i] = object[i];
}
}
}
return clone;
};
/**
* Remove all empty spaces before and after the value.
* TODO: Only include this or String.trim(). What is best?
*
* @param {String} value
* @returns {@exp;value@call;replace}
*/
H5P.trim = function (value) {
return value.replace(/^\s+|\s+$/g, '');
};
/**
* Check if javascript path/key is loaded.
*
* @param {String} path
* @returns {Boolean}
*/
H5P.jsLoaded = function (path) {
for (var i = 0; i < H5P.loadedJs.length; i++) {
if (H5P.loadedJs[i] === path) {
return true;
}
}
return false;
};
/**
* Check if styles path/key is loaded.
*
* @param {String} path
* @returns {Boolean}
*/
H5P.cssLoaded = function (path) {
for (var i = 0; i < H5P.loadedCss.length; i++) {
if (H5P.loadedCss[i] === path) {
return true;
}
}
return false;
};
/**
* Shuffle an array in place.
* TODO: Consider if this should be a part of core. I'm guessing very few libraries are going to use it.
*
* @param {array} array Array to shuffle
* @returns {array} The passed array is returned for chaining.
*/
H5P.shuffleArray = function (array) {
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.
* TODO: Should we use events instead? That way the parent can handle the results of the child.
*
* @param {Number} contentId
* @param {Number} points
* @param {Number} maxPoints
*/
H5P.setFinished = function (contentId, points, maxPoints) {
if (H5P.postUserStatistics === true) {
H5P.jQuery.post(H5P.ajaxPath + 'setFinished', {contentId: contentId, points: points, maxPoints: maxPoints});
}
};
// 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);
};
}
// Finally, we want to run init when document is ready. But not if we're
// in an iFrame. Then we wait for parent to start init().
if (H5P.jQuery) {
H5P.jQuery(document).ready(function () {
if (!H5P.initialized) {
H5P.initialized = true;
H5P.init();
}
});
}