h5p-php-library/js/h5p.js

1159 lines
31 KiB
JavaScript

// TODO: Should we split up the generic parts needed by the editor(and others), and the parts needed to "run" H5Ps?
var H5P = H5P || {};
// Determine if we're inside an iframe.
H5P.isFramed = (window.self !== window.top);
// Useful jQuery object.
H5P.$window = H5P.jQuery(window);
H5P.instances = [];
// Detect if we support fullscreen, and what prefix to use.
if (document.documentElement.requestFullScreen) {
H5P.fullScreenBrowserPrefix = '';
}
else if (document.documentElement.webkitRequestFullScreen
&& navigator.userAgent.indexOf('Android') === -1 // Skip Android
) {
H5P.safariBrowser = navigator.userAgent.match(/Version\/(\d)/);
H5P.safariBrowser = (H5P.safariBrowser === null ? 0 : parseInt(H5P.safariBrowser[1]));
// Do not allow fullscreen for safari < 7.
if (H5P.safariBrowser === 0 || H5P.safariBrowser > 6) {
H5P.fullScreenBrowserPrefix = 'webkit';
}
}
else if (document.documentElement.mozRequestFullScreen) {
H5P.fullScreenBrowserPrefix = 'moz';
}
else if (document.documentElement.msRequestFullscreen) {
H5P.fullScreenBrowserPrefix = 'ms';
}
/**
* Initialize H5P content.
* Scans for ".h5p-content" in the document and initializes H5P instances where found.
*/
H5P.init = function () {
// Useful jQuery object.
H5P.$body = H5P.jQuery(document.body);
// Prepare internal resizer for content.
var $window = H5P.jQuery(window.parent);
// 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: JSON.parse(contentData.jsonContent)
};
// Create new instance.
var instance = H5P.newRunnable(library, contentId, $container, true);
// Check if we should add and display a fullscreen button for this H5P.
if (contentData.fullScreen == 1) {
H5P.jQuery('<div class="h5p-content-controls"><div role="button" tabindex="1" class="h5p-enable-fullscreen" title="' + H5P.t('fullscreen') + '"></div></div>').prependTo($container).children().click(function () {
H5P.fullScreen($container, instance);
});
};
var $actions = H5P.jQuery('<ul class="h5p-actions"></ul>');
if (contentData.exportUrl !== '') {
// Display export button
H5P.jQuery('<li class="h5p-button h5p-export" role="button" tabindex="1" title="' + H5P.t('downloadDescription') + '">' + H5P.t('download') + '</li>').appendTo($actions).click(function () {
window.location.href = contentData.exportUrl;
});
}
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 () {
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;
};
var resizeDelay;
instance.on('resize', function () {
// Use a delay to make sure iframe is resized to the correct size.
clearTimeout(resizeDelay);
resizeDelay = setTimeout(function () {
resizeIframe();
}, 1);
});
H5P.instances.push(instance);
}
instance.on('xAPI', H5P.xAPIListener);
// Resize everything when window is resized.
$window.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.
instance.trigger('resize');
}
else {
instance.trigger('resize');
}
});
// Resize content.
instance.trigger('resize');
});
// Insert H5Ps that should be in iframes.
H5P.jQuery("iframe.h5p-iframe").each(function () {
var contentId = H5P.jQuery(this).data('content-id');
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();
});
};
H5P.xAPIListener = function(event) {
if (event.verb.id === 'http://adlnet.gov/expapi/verbs/completed') {
var points = event.result.score.raw;
var maxPoints = event.result.score.max;
var contentId = event.object.contentId;
H5P.setFinished(contentId, points, maxPoints);
}
}
/**
* 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);
/**
* Prepare for resize by setting the correct styles.
*
* @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.
*/
var entered = function () {
// Do not rely on window resize events.
instance.trigger('resize');
instance.trigger('focus');
};
/**
* Gets called when fullscreen mode has been exited.
* Resizes and sets focus on content.
*
* @param {String} classes CSS
*/
var done = function (classes) {
H5P.isFullscreen = false;
$classes.removeClass(classes);
// Do not rely on window resize events.
instance.trigger('resize');
instance.trigger('focus');
if (exitCallback !== undefined) {
exitCallback();
}
};
H5P.isFullscreen = true;
if (H5P.fullScreenBrowserPrefix === undefined) {
// Create semi fullscreen.
before('h5p-semi-fullscreen');
var $disable = H5P.jQuery('<div role="button" tabindex="1" class="h5p-disable-fullscreen" title="' + H5P.t('disableFullscreen') + '"></div>').appendTo($container.find('.h5p-content-controls'));
var keyup, disableSemiFullscreen = function () {
$disable.remove();
$body.unbind('keyup', keyup);
done('h5p-semi-fullscreen');
};
keyup = function (event) {
if (event.keyCode === 27) {
disableSemiFullscreen();
}
};
$disable.click(disableSemiFullscreen);
$body.keyup(keyup);
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);
}
}
};
/**
* 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) {
var hasProtocol = function (path) {
return path.match(/^[a-z0-9]+:\/\//i);
};
if (hasProtocol(path)) {
return path;
}
if (contentId !== undefined) {
prefix = H5PIntegration.getContentPath(contentId);
}
else if (window['H5PEditor'] !== undefined) {
prefix = H5PEditor.filesPath;
}
else {
return;
}
if (!hasProtocol(prefix)) {
prefix = window.parent.location.protocol + "//" + window.parent.location.host + prefix;
}
return prefix + '/' + 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 An optional element to attach the instance to.
* @param {Boolean} skipResize Optionally skip triggering of the resize event after attaching.
* @param {Object} The parent of this H5P
* @return {Object} Instance.
*/
H5P.newRunnable = function (library, contentId, $attachTo, skipResize, parent) {
try {
var nameSplit = library.library.split(' ', 2);
var versionSplit = nameSplit[1].split('.', 2);
}
catch (err) {
return H5P.error('Invalid library string: ' + library.library);
}
if ((library.params instanceof Object) !== true || (library.params instanceof Array) === true) {
H5P.error('Invalid library params for: ' + library.library);
return H5P.error(library.params);
}
// Find constructor function
try {
nameSplit = nameSplit[0].split('.');
var constructor = window;
for (var i = 0; i < nameSplit.length; i++) {
constructor = constructor[nameSplit[i]];
};
if (typeof constructor !== 'function') {
throw null;
}
}
catch (err) {
return H5P.error('Unable to find constructor for: ' + library.library);
}
var instance = new constructor(library.params, contentId);
H5P.addContentTypeFeatures(instance);
// Make xAPI events bubble
// if (parent !== null && parent.trigger !== undefined) {
// instance.on('xAPI', parent.trigger);
// }
// Automatically call resize on resize event if defined
if (typeof instance.resize === 'function') {
instance.on('resize', instance.resize);
}
if ($attachTo !== undefined) {
instance.attach($attachTo);
if (skipResize === undefined || !skipResize) {
// Resize content.
instance.trigger('resize');
}
}
return instance;
};
/**
* Add features like event handling to an H5P content type library
*
* @param instance
* An H5P content type instance
*/
H5P.addContentTypeFeatures = function(instance) {
if (instance.listeners === undefined) {
instance.listeners = {};
}
if (instance.on === undefined) {
instance.on = function(type, listener) {
if (typeof listener === 'function') {
if (this.listeners[type] === undefined) {
this.listeners[type] = [];
}
this.listeners[type].push(listener);
}
}
}
if (instance.off === undefined) {
instance.off = function (type, listener) {
if (this.listeners[type] !== undefined) {
var removeIndex = listeners[type].indexOf(listener);
if (removeIndex) {
listeners[type].splice(removeIndex, 1);
}
}
}
}
if (instance.trigger === undefined) {
instance.trigger = function (type, event) {
if (this.listeners[type] !== undefined) {
for (var i = 0; i < this.listeners[type].length; i++) {
this.listeners[type][i](event);
}
}
}
}
if (instance.triggerXAPI === undefined) {
instance.triggerXAPI = function(verb, extra) {
var event = {
'actor': H5P.getActor(),
'verb': H5P.getxAPIVerb(verb)
}
if (extra !== undefined) {
for (var i in extra) {
event[i] = extra[i];
}
}
if (!('object' in event)) {
event.object = H5P.getxAPIObject(this);
}
this.trigger('xAPI', event);
}
}
}
H5P.getActor = function() {
// TODO: Implement or remove?
// Dummy data...
return {
'name': 'Ernst Petter',
'mbox': 'ernst@petter.com'
}
}
H5P.allowedxAPIVerbs = [
'answered',
'asked',
'attempted',
'attended',
'commented',
'completed',
'exited',
'experienced',
'failed',
'imported',
'initialized',
'interacted',
'launched',
'mastered',
'passed',
'preferred',
'progressed',
'registered',
'responded',
'resumed',
'scored',
'shared',
'suspended',
'terminated',
'voided'
]
H5P.getxAPIVerb = function(verb) {
if (H5P.jQuery.inArray(verb, H5P.allowedxAPIVerbs) !== -1) {
return {
'id': 'http://adlnet.gov/expapi/verbs/' + verb,
'display': {
'en-US': verb
}
}
}
// Else: Fail silently...
}
H5P.getxAPIObject = function(instance) {
// TODO: Implement or remove?
// Return dummy data...
return {
'id': 'http://mysite.com/path-to-main-activity#sub-activity',
'contentId': instance.contentId,
'reference': instance
}
}
H5P.getxAPIScoredResult = function(score, maxScore) {
return {
'score': {
'min': 0,
'max': maxScore,
'raw': score
}
}
}
/**
* 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 $.extend do the same?
*
* @param {object} object Object to clone.
* @param {type} recursive
* @returns {object} A clone of object.
*/
H5P.cloneObject = function (object, recursive) {
var clone = object instanceof Array ? [] : {};
for (var i in object) {
if (object.hasOwnProperty(i)) {
if (recursive !== undefined && recursive && typeof object[i] === 'object') {
clone[i] = H5P.cloneObject(object[i], recursive);
}
else {
clone[i] = object[i];
}
}
}
return clone;
};
/**
* Remove all empty spaces before and after the value.
* TODO: Only include this or String.trim(). What is best?
* I'm leaning towards implementing the missing ones: http://kangax.github.io/compat-table/es5/
* So should we make this function deprecated?
*
* @param {String} value
* @returns {@exp;value@call;replace}
*/
H5P.trim = function (value) {
return value.replace(/^\s+|\s+$/g, '');
};
/**
* Check if javascript path/key is loaded.
*
* @param {String} path
* @returns {Boolean}
*/
H5P.jsLoaded = function (path) {
H5P.loadedJs = H5P.loadedJs || [];
return H5P.jQuery.inArray(path, H5P.loadedJs) !== -1;
};
/**
* Check if styles path/key is loaded.
*
* @param {String} path
* @returns {Boolean}
*/
H5P.cssLoaded = function (path) {
H5P.loadedCss = H5P.loadedCss || [];
return H5P.jQuery.inArray(path, H5P.loadedCss) !== -1;
};
/**
* 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.
// TODO: Move to integration. Systems like Moodle using YUI cannot get its translations set before this starts!
if (H5P.jQuery) {
H5P.jQuery(document).ready(function () {
if (!H5P.initialized) {
H5P.initialized = true;
H5P.init();
}
});
}