var H5P = H5P || {};
// This needs to be determined before init is run.
H5P.isFramed = (window.self !== window.top); // (window.parent !== window);
// Initialize H5P content
// Scans for ".h5p-content"
H5P.init = function () {
if (H5P.$window === undefined) {
H5P.$window = H5P.jQuery(window);
}
if (H5P.$body === undefined) {
H5P.$body = H5P.jQuery('body');
}
// Is this H5P being run in a frame?
if (H5P.isFramed) {
H5P.$body.addClass('h5p-iframe-content');
}
if (H5P.fullScreenBrowserPrefix === undefined) {
if (document.documentElement.requestFullScreen) {
H5P.fullScreenBrowserPrefix = '';
}
else if (document.documentElement.webkitRequestFullScreen
&& navigator.userAgent.indexOf('Android') === -1 // Skip Android
) {
// Safari has stopped working as of v6.0.3. (Specifying keyboard input
// makes webkitRequestFullScreen silently fail.) The following code
// assumes that the Safari developers figure out how to properly handle
// their own extension before reaching version 6.0.10. Until then, we
// treat Safari as an old IE. (Please note: Just looking for Safari in
// the UA string will also match Chrome.)
if (navigator.userAgent.match(/Version\/6\.0\.[3-9].*Safari/)) {
H5P.fullScreenBrowserPrefix = undefined;
}
else {
H5P.fullScreenBrowserPrefix = 'webkit';
}
}
else if (document.documentElement.mozRequestFullScreen) {
H5P.fullScreenBrowserPrefix = 'moz';
}
else if (document.documentElement.msRequestFullScreen) {
H5P.fullScreenBrowserPrefix = 'ms';
}
}
// H5Ps added in normal DIV.
H5P.jQuery(".h5p-content").each(function (idx, el) {
var $el = H5P.jQuery(el),
contentId = $el.data('content-id'),
mainLibrary = $el.data('class'),
obj = new (H5P.classFromName(mainLibrary))(H5P.jQuery.parseJSON(H5PIntegration.getJsonContent(contentId)), contentId);
// Render H5P in container.
obj.attach($el);
// Add Fullscreen button if relevant.
if (H5PIntegration.getFullscreen(contentId)) {
H5P.jQuery('').insertBefore($el).children().click(function () {
H5P.fullScreen($el, obj);
return false;
});
};
});
// H5Ps living in iframes. Note: Fullscreen button will be added
// inside iFrame if relevant
var $h5pIframes = H5P.jQuery(".h5p-iframe");
if ($h5pIframes.length !== 0) {
$h5pIframes.each(function (idx, iframe) {
var $iframe = H5P.jQuery(iframe),
contentId = $iframe.data('content-id'),
mainLibrary = $iframe.data('class');
iframe.contentDocument.open();
iframe.contentDocument.write('' + H5PIntegration.getHeadTags(contentId) + '');
iframe.contentDocument.close();
});
// TODO: This seems very hacky... why can't we just use the resize event? What happens if we ain't done before the next interval starts?
setInterval(function () {
$h5pIframes.each(function (idx, iframe) {
var $iframe = H5P.jQuery(iframe);
var contentHeight = $iframe.contents().height();
var frameHeight = $iframe.innerHeight();
if (frameHeight !== contentHeight) {
H5P.resizeIframe($iframe.data('content-id'), contentHeight);
}
});
}, 250);
}
};
H5P.fullScreenIframe = function (contentId, obj, exitCallback) {
H5P.fullScreen(H5P.jQuery('#iframe-wrapper-' + contentId), obj, exitCallback);
};
H5P.resizeIframe = function (contentId, height) {
var iframe = document.getElementById('iframe-' + contentId);
// Don't allow iFrame to grow beyond window height;
if (height > window.innerHeight) {
height = window.innerHeight;
}
iframe.style.height = (H5P.isFullscreen) ? '100%' : height + 'px';
};
/**
* Enable full screen for the given h5p.
*
* @param {jQuery} $el Container
* @param {object} obj H5P
* @returns {undefined}
*/
H5P.fullScreen = function ($el, obj, exitCallback) {
if (H5P.isFramed) {
var $classes = H5P.jQuery('html').add(H5P.$body).add($el);
$classes.addClass('h5p-fullscreen');
window.parent.H5P.fullScreenIframe($el.data('content-id'), obj, function () {
$classes.removeClass('h5p-fullscreen');
});
return;
}
if (H5P.fullScreenBrowserPrefix === undefined) {
// Create semi fullscreen.
$el.add(H5P.$body).addClass('h5p-semi-fullscreen');
// Move H5P content to top of body to make sure it is above other page
// content. Insert placeholder in original position to be able to move it
// back.
// THIS DOES NOT WORK WITH IFRAMED CONTENT, iframe will reload/fail.
// $el.after('').prependTo(H5P.$body);
H5P.isFullscreen = true;
var $disable = H5P.jQuery('Disable fullscreen').appendTo($el);
var keyup, disableSemiFullscreen = function () {
$el.add(H5P.$body).removeClass('h5p-semi-fullscreen');
// H5P.jQuery('#h5pfullscreenreplacementplaceholder').before($el).remove();
$disable.remove();
H5P.isFullscreen = false;
H5P.$body.unbind('keyup', keyup);
H5P.jQuery(".h5p-iframe").each(function (idx, el) {
H5P.resizeIframe(H5P.jQuery(el).data('content-id'), 0);
});
if (exitCallback) {
exitCallback();
}
if (obj.resize !== undefined) {
obj.resize(false);
}
return false;
};
keyup = function (event) {
if (event.keyCode === 27) {
disableSemiFullscreen();
}
};
$disable.click(disableSemiFullscreen);
H5P.$body.keyup(keyup);
}
else {
var first, eventName = H5P.fullScreenBrowserPrefix + 'fullscreenchange';
H5P.isFullscreen = true;
document.addEventListener(eventName, function () {
if (first === undefined) {
first = false;
return;
}
H5P.isFullscreen = false;
$el.add(H5P.$body).removeClass('h5p-fullscreen');
H5P.jQuery(".h5p-iframe").each(function (idx, el) {
H5P.resizeIframe(H5P.jQuery(el).data('content-id'), 0);
});
if (exitCallback) {
exitCallback();
}
if (obj.resize !== undefined) {
obj.resize(false);
}
document.removeEventListener(eventName, arguments.callee, false);
});
if (H5P.fullScreenBrowserPrefix === '') {
$el[0].requestFullScreen();
}
else {
$el[0][H5P.fullScreenBrowserPrefix + 'RequestFullScreen'](H5P.fullScreenBrowserPrefix === 'webkit' ? Element.ALLOW_KEYBOARD_INPUT : undefined);
}
$el.add(H5P.$body).addClass('h5p-fullscreen');
}
H5P.jQuery(".h5p-iframe").each(function (idx, el) {
H5P.resizeIframe(H5P.jQuery(el).data('content-id'), 0);
});
if (obj.resize !== undefined) {
obj.resize(true);
}
};
/**
* 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);
};
//
// Used from libraries to construct instances of other libraries' objects by
// name.
//
H5P.classFromName = function(name) {
var arr = name.split(".");
return this[arr[arr.length-1]];
};
// 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;
};
/**
*@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)$/g;
var res = regExp.exec(library);
if (res !== null) {
return {
'machineName': res[1],
'majorVersion': res[2],
'minorVersion': res[3]
};
}
else {
return false;
}
};
/**
* Get the path to the library
*
* @param {string} machineName The machine name of the library
* @returns {string} The full path to the library
*/
H5P.getLibraryPath = function(machineName) {
return H5PIntegration.getLibraryPath(machineName);
};
/**
* Recursivly clone the given object.
*
* @param {object} object Object to clone.
* @param {type} recursive
* @returns {object} A clone of object.
*/
H5P.cloneObject = function (object, recursive) {
var clone = object instanceof Array ? [] : {};
for (var i in object) {
if (object.hasOwnProperty(i)) {
if (recursive !== undefined && recursive && typeof object[i] === 'object') {
clone[i] = H5P.cloneObject(object[i], recursive);
}
else {
clone[i] = object[i];
}
}
}
return clone;
};
/**
* Remove all empty spaces before and after the value.
*
* @param {String} value
* @returns {@exp;value@call;replace}
*/
H5P.trim = function (value) {
return value.replace(/^\s+|\s+$/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;
};
// We have several situations where we want to shuffle an array, extend array
// to do so.
H5P.shuffleArray = function(array) {
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.
*
* @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();
}
});
}