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jquery.jqplayer.js
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/**!
jQPlayer - HTML 5 Video Player Plugin for jQuery
Version: 0.5
Site: http://jqplayer.vebersol.net/
Author: Vinícius Ebersol
Designer: Thiago Reis
License: MIT License
*/
var options;
(function ($) {
/**
* Provides a custom HTML5 video player.
*
* @class VideoPlayer
* @param {jQueryObject} selector The jquery selector where video player will append to.
* @param {Object} options Options to customize jQPlayer
*/
var VideoPlayer = function (selector, options) {
/**
* jQuery object that contain element to append the custom video element.
*
* @property selector
* @type {jQueryObject}
*/
this.selector = selector;
/**
* Options to customize jQPlayer.
*
* @property options
* @type {Object}
*/
this.options = options;
/**
* A flag to detect if video is playing or not.
*
* @property playing
* @type {Boolean}
* @default false
*/
this.playing = false;
/**
* A flag that will determine if browser supports HTML5 video.
*
* @property supportHTML5
* @type {Boolean}
* @default true
*/
this.supportHTML5 = true;
/**
* A flag that will determine that poster isn't visible. True when this option is available.
*
* @property options
* @type {Object}
*/
this.posterVisible = false;
this.init();
};
VideoPlayer.prototype = {
/**
* Video Player constructor that verifies if the browser can play HTML5 video and starts it, otherwise, it will load flash fallback (if browser has flash installed).
*
* @method init
*/
init: function () {
var videoEl = document.createElement('video');
if (videoEl.canPlayType) {
this.supportHTML5 = true;
return this.start();
}
else {
this.supportHTML5 = false;
var hasFlash = false;
try {
var activeX = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
if (activeX) {
hasFlash = true;
}
} catch (e) {
if (navigator.mimeTypes["application/x-shockwave-flash"] != undefined) {
hasFlash = true;
}
}
if (hasFlash) {
this.startFallback();
}
}
},
/**
* Start HTML5 version of jQPlayer
*
* @method start
*/
start: function () {
this.getDefaultVideo();
this.createVideoElement();
this.createControls();
this.bindControls();
this.bindEvents();
this.setupSubtitles();
if (this.options.onStart) {
this.options.onStart.call();
}
},
/**
* Start flash version of jQPlayer (only browser that can't play HTML5 video)
*
* @method startFallback
*/
startFallback: function () {
var _this = this;
this.supportHTML5 = false;
this.getDefaultVideo();
this.createFlashElement();
this.createControls();
this.bindControls();
this.bindEvents();
this.setupSubtitles();
if (this.options.onStart) {
this.options.onStart.call();
}
},
/**
* Method that will show the correct subtitle when video is seeked or version has been changed.
*
* @method adjustSubtitle
* @param {HTMLElement} video Current video element
*/
adjustSubtitle: function (video) {
this.subtitleObj.count = 0;
this.subtitleObj.current = this.subtitleObj.content[this.subtitleObj.count];
var videoTime = this.supportHTML5 ? video.currentTime : video.currentTime(),
currentTime = parseFloat(videoTime);
while (this.getMaxTime() < currentTime) {
this.updateSubtitle(video);
if (this.subtitleObj.count > this.subtitleObj.content.length - 1) {
this.subtitleObj.count = this.subtitleObj.content.length - 1;
break;
}
}
},
/**
* Detect available controls set in options and add events to each of them.
*
* @method bindControls
*/
bindControls: function () {
var _this = this;
for (var i = 0; i < this.options.controls.length; i++) {
switch (this.options.controls[i]) {
case 'play':
this.selector.find(_this.getClass('play')).bind('click', function () { _this.playPause(); });
break;
case 'progress':
this.setupProgressBar();
break;
case 'volume':
this.selector.find(_this.getClass('volume-button')).bind('click', function () { _this.muteVideo(); });
break;
case 'fullscreen':
this.selector.find(_this.getClass('fullscreen')).bind('click', function () { _this.toFullscreen(); });
break;
default:
break;
}
}
},
/**
* Handle events or custom flash events
*
* @method bindEvents
*/
bindEvents: function () {
var _this = this;
var video = this.video.get(0);
if (this.supportHTML5) {
video.addEventListener('loadedmetadata', function () {
_this.eventsToBind();
}, true);
if ($.browser.webkit) {
$(document).bind('webkitfullscreenchange', function () {
_this.fullscreenEvent();
});
}
else if ($.browser.mozilla) {
$(document).bind('mozfullscreenchange', function () {
_this.fullscreenEvent();
});
}
}
else {
$(document).bind('flash.loaded', function () {
_this.eventsToBind();
});
}
var enter = function () {
$(this).addClass('hover');
};
var leave = function () {
var element = $(this);
if (element.hasClass(_this.getClass('volume').replace('.', '')) && _this.volumeFlag) {
return false;
}
element.removeClass('hover');
};
$(this.getClass('play')).hover(enter, leave);
$(this.getClass('volume')).hover(enter, leave);
$(this.getClass('fullscreen')).hover(enter, leave);
$(this.getClass('alternative-versions')).hover(enter, leave);
this.selector.bind('mouseleave', function (ev) {
ev.preventDefault();
if (_this.playing) {
clearTimeout(_this.inactivateTimer);
_this.inactivateTimer = setTimeout(function () {
_this.selector.find(_this.getClass('video-controls')).addClass('inactive');
}, 2000);
}
});
this.selector.bind('mouseenter', function (ev) {
ev.preventDefault();
clearTimeout(_this.inactivateTimer);
_this.selector.find(_this.getClass('video-controls')).removeClass('inactive');
});
this.selector.find(this.getClass('video-controls')).bind('mousedown', function (ev) {
ev.preventDefault();
});
$(window).bind('resize', function () {
_this.setupProgressBar();
});
},
/**
* Prevent native text/element selection when using progress bar or volume bar.
*
* @method blockSelection
*/
blockSelection: function () {
this.volumeFlag = true;
document.onselectstart = function () {
return false;
};
},
/**
* Change video to an alternative quality/version.
*
* @method changeVideoSource
* @param {HTMLElement} element The version element inside the versions list button.
*/
changeVideoSource: function (element) {
var currentVersionEl = $(element).parent().parent().parent();
currentVersion = currentVersionEl.attr('class').replace(this.setClass('alternative-versions') + ' ', '');
var labelEl = currentVersionEl.find(this.getClass('current-version'));
var alternative = $(element).parent().attr('class').replace('.' + this.options.prefix + 'alternative-', '');
if (currentVersion != alternative) {
var version = this.options.videos[alternative];
labelEl.html(version.label);
labelEl.parent().removeClass(currentVersion).addClass(alternative);
video = this.video.get(0);
if (this.supportHTML5) {
video.pause();
}
else {
video._pause();
}
this.resetVideo();
if (this.supportHTML5) {
video.src = this.getVideoSource(version);
}
else {
video.changeVideo(this.getVideoSource(version));
}
var ul = $(this.getClass('alternative-versions')).find('ul');
ul.html('');
for (alternative in this.options.videos) {
var alternativeObj = this.options.videos[alternative];
if (alternativeObj != version) {
if (alternativeObj.source) {
var li = $('<li class="'+this.getClass('alternative-' + alternative)+'"><a href="javascript:;"><span></span></a></li>');
if (alternativeObj.label) {
li.find('span').html(alternativeObj.label);
}
var _this = this;
li.find('a').bind('click', function () { _this.changeVideoSource(this); });
ul.append(li);
}
}
}
var _this = this;
if (this.supportHTML5) {
video.addEventListener('loadedmetadata', function () {
this.play();
if (_this.options.onVideoChange) {
_this.options.onVideoChange.call();
}
}, true);
}
}
},
/**
* Create the alternative videos button with elements select.
*
* @method createAlternative
* @return {jQueryObject} Alternative selector button HTML.
*/
createAlternative: function () {
var element = $('<div class="'+ this.setClass('alternative-versions') +'"></div>');
element.append('<span class="'+this.setClass('current-version')+'">'+this.defaultVideo.label+'</span>');
element.append('<ul></ul>');
for (alternative in this.options.videos) {
var alternativeObj = this.options.videos[alternative];
if (alternativeObj != this.defaultVideo) {
if (alternativeObj.source) {
var li = $('<li class="'+this.getClass('alternative-' + alternative)+'"><a href="javascript:;"><span></span></a></li>');
if (alternativeObj.label) {
li.find('span').html(alternativeObj.label);
}
var _this = this;
li.find('a').bind('click', function () { _this.changeVideoSource(this); });
element.find('ul').append(li);
}
}
else {
element.addClass(alternative);
}
}
return element;
},
/**
* Create a button in control bar.
*
* @method createButton
* @param {String} labelName The label name to provide text inside the button.
* @param {String} className A class to add to this button.
* @return {jQueryObject} The custom button.
*/
createButton: function (labelName, className) {
var btn = $('<div>').addClass(this.setClass(className));
var label = $('<span>').html(labelName);
btn.append(label);
return btn;
},
/**
* Create an element to break float elements, it should be provided in order to be supported by older browsers. :(
*
* @method createClearFloats
* @return {String} An string that contain the HTML markup to be inserted somewhere in control bar.
*/
createClearFloats: function () {
return '<div style="clear:both;width:0;height:0;margin:0;padding:0;"><!-- --></div>';
},
/**
* Creates control bar and check options to verify which controls should be created inside this progress bar.
*
* @method createControls
*/
createControls: function () {
this.controls = $('<div>').addClass(this.setClass(this.options.controlsClass));
for (var i = 0; i < this.options.controls.length; i++) {
switch (this.options.controls[i]) {
case 'play':
var playBtn = this.createButton('Play/Pause', 'play');
this.controls.append(playBtn);
break;
case 'progress':
var progressBar = this.createProgressBar();
this.controls.append(progressBar);
break;
case 'time':
var timeDisplay = this.createTimeDisplay();
this.controls.append(timeDisplay);
break;
case 'volume':
var volumeBar = this.createVolumeBar();
this.controls.append(volumeBar);
break;
case 'fullscreen':
if ($.browser.webkit || $.browser.mozilla) {
var fullScreenBtn = this.createButton('Fullscreen', 'fullscreen');
this.controls.append(fullScreenBtn);
}
break;
case 'alternative':
var alternative = this.createAlternative();
this.controls.append(alternative);
break;
default:
var customButton = this.createCustomButton(this.options.controls[i]);
this.controls.append(customButton);
break;
}
}
// clear floats
this.controls.append(this.createClearFloats());
this.selector.append(this.controls);
},
/**
* Creates a custom buttons that has been provided by user in options.
*
* @method createCustomButton
* @param {String} button button index to get button object.
* @return {jQueryObject} Custom button element.
*/
createCustomButton: function (button) {
var buttonElement = null;
var buttonObj = this.options.customButtons[button];
/**
* @property {Object} button
* @param {String} button.label A text to put inside the custom button
* @param {String} button.className A class to add in custom button element
* @param {String} [button.url] An URL to put in link target.
* @param {String} [button.target] The target window when url is available. Ex.: _blank, _self, _parent
* @param {Function} [button.onclick] A function to be executed on click. If url is set, this option won't be applied.
*/
if (buttonObj) {
if (buttonObj.url) {
buttonElement = $('<div><a href="'+buttonObj.url+'"></a></div>');
if (buttonObj.label)
buttonElement.find('a').html(buttonObj.label);
if (buttonObj.className) {
buttonElement.addClass(buttonObj.className);
}
if (buttonObj.target) {
buttonElement.find('a').attr('target', buttonObj.target);
}
}
else if (buttonObj.onclick) {
buttonElement = $('<div><a href="javascript:;"></a></div>');
buttonElement.find('a').bind('click', buttonObj.onclick);
if (buttonObj.className)
buttonElement.addClass(buttonObj.className);
if (buttonObj.label)
buttonElement.find('a').html(buttonObj.label);
}
buttonElement.addClass(this.setClass('custom-button'));
return buttonElement;
}
return false;
},
/**
* Creates the flash element to be inserted inside {{#crossLink "VideoPlayer/selector:property"}}{{/crossLink}} when browser doesn't support HTML5 video.
*
* @method createFlashElement
*/
createFlashElement: function () {
this.createPoster();
var params = {
"allowScriptAccess": "always",
"movie": this.options.fallbackOptions.swf,
"allowNetworking": "all",
"wmode": "transparent",
"bgcolor": "#000000"
};
var flashvars = {
"video": this.getVideoSource()
};
var ieFix = '',
randomId = this.setClass('fallback') + '_' + Math.floor(Math.random() * 999);
if ($.browser.msie) {
ieFix = ' id="' + randomId + '" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"';
}
var fallbackHTML = '<object type="application/x-shockwave-flash" width="100%" height="100%" data="' + this.options.fallbackOptions.swf + '" ' + ieFix + '>';
fallbackHTML += this.addParams(params, flashvars);
fallbackHTML += '</object>';
this.video = $(fallbackHTML);
$(this.selector).append(this.video);
},
/**
* Add params and embed tag to fallback flash element.
*
* @method addParams
* @param {Object} params Flash params properties
* @param {Object} flashvars Flashvars option
* @return {String} All parameters to put inside flash Element
*/
addParams: function (params, flashvars) {
var paramsArr = [],
flashVarsArr = [],
embed = '<embed ';
for (var fv in flashvars) {
flashVarsArr.push(fv + '=' +flashvars[fv]);
}
params.flashvars = flashVarsArr.join('&');
for (var i in params) {
paramsArr.push('<param name="' + i + '" value="' + params[i] + '">');
embed += i + '="' + params[i] + '" ';
}
embed += '>';
return paramsArr.join(' ') + embed;
},
/**
* Create an image to add in front of video player when video hasn't been played yet.
*
* @method createPoster
*/
createPoster: function () {
if (this.defaultVideo.poster) {
var poster = $('<img src="' + this.defaultVideo.poster + '" class="' + this.setClass('poster') + '">');
this.selector.append(poster);
this.posterVisible = true;
}
},
/**
* Create the progressbar element to append to control bar.
*
* @method createProgressBar
* @return {jQueryObject} Progress bar element
*/
createProgressBar: function () {
var progressBar = $('<div>').addClass(this.setClass('progress-bar'));
var progressWrapper = $('<div>').addClass(this.setClass('progress-wrapper'));
var progressPlay = $('<div>').addClass(this.setClass('progress-play'));
var progressPointer = $('<div>').addClass(this.setClass('progress-pointer'));
var progressBuffer = $('<div>').addClass(this.setClass('progress-buffer'));
progressWrapper.append(progressPlay);
progressWrapper.append(progressPointer);
progressWrapper.append(progressBuffer);
progressWrapper.append(this.createClearFloats());
progressBar.append(progressWrapper);
return progressBar;
},
/**
* Create time element.
* @method createTimeDisplay
* @return {jQueryObject} Time element.
*/
createTimeDisplay: function () {
var time = $('<div>').addClass(this.setClass('time-display'));
var current = $('<div>').addClass(this.setClass('time-current'));
var separator = $('<div>').addClass(this.setClass('time-separator'));
var total = $('<div>').addClass(this.setClass('time-total'));
time.append(current);
time.append(separator);
time.append(total);
return time;
},
/**
* Create video element with poster and append to {{#crossLink "VideoPlayer/selector:property"}}{{/crossLink}}. Throw error if video element can't be created.
*
* @method createVideoElement
*/
createVideoElement: function () {
try {
this.createPoster();
this.video = $('<video>Your browser doesn\'t support video tag.</video>');
this.video.attr('src', this.getVideoSource());
this.video.width('100%');
this.video.height('100%');
if (this.defaultVideo.subtitle) {
this.video.append('<track src="'+this.defaultVideo.subtitle+'"></track>');
}
$(this.selector).append(this.video);
} catch (e) {
this.supportHTML5 = false;
var errorEl = $('<p class="' + this.setClass('error-message') + '"></p>')
.html('Your browser doesn\'t support html5 video. Try to setup a fallback in options.');
$(this.selector).append(errorEl);
}
},
/**
* Create volume control bar element to append to {{#crossLink "VideoPlayer/selector:property"}}{{/crossLink}}. Currently only vertical.
*
* @method createVolumeBar
* @return {jQueryObject} Volume control bar element.
*/
createVolumeBar: function () {
var volume = $('<div>').addClass(this.setClass('volume'));
var volumeBtn = $('<div>').addClass(this.setClass('volume-button')).html('Volume');
var volumeBar = $('<div>').addClass(this.setClass('volume-bar'));
var volumeIconPlus = $('<div>').addClass(this.setClass('volume-icon-plus')).html('+');
var volumeWrapper = $('<div>').addClass(this.setClass('volume-wrapper'));
var volumePosition = $('<div>').addClass(this.setClass('volume-position'));
var volumeIconLess = $('<div>').addClass(this.setClass('volume-icon-less')).html('-');
volumeWrapper.append(volumePosition);
volumeBar.append(volumeIconPlus);
volumeBar.append(volumeWrapper);
volumeBar.append(volumeIconLess);
volume.append(volumeBtn);
volume.append(volumeBar);
return volume;
},
/**
* Bind native video elements to fire custom events.
*
* @method eventsToBind
*/
eventsToBind: function () {
if ($.inArray('progress', this.options.controls)) {
this.setProgressEvents(this.video.get(0));
}
if ($.inArray('time', this.options.controls)) {
this.setupTime();
}
if ($.inArray('volume', this.options.controls)) {
this.volumeSetup();
}
},
/**
* Get X position of an HTML Element in window.
*
* @method findPosX
* @param {jQueryObject} obj The element to find the X position.
* @return {Integer} Current left position of this element
*/
findPosX: function (obj) {
obj = obj.get(0);
var curleft = obj.offsetLeft;
while(obj = obj.offsetParent) {
curleft += obj.offsetLeft;
}
return curleft;
},
/**
* Get Y position of an HTML Element in window.
*
* @method findPosY
* @param {jQueryObject} obj The element to find the Y position.
* @return {Integer} Current top position of this element
*/
findPosY: function (obj) {
obj = obj.get(0);
var curtop = obj.offsetTop;
while(obj = obj.offsetParent) {
curtop += obj.offsetTop;
}
return curtop;
},
/**
* Format seconds to be shown as minutes:seconds.
*
* @method formatTime
* @param {Integer} secs Time in seconds
* @return {String} Formated time in minutes and seconds
*/
formatTime: function (secs) {
var minutes = Math.floor(secs / 60);
var seconds = Math.round(secs - (minutes * 60));
if (seconds == 60) {
seconds = 0;
minutes = minutes + 1;
}
if (seconds < 10) {
seconds = '0' + seconds;
}
return minutes + ':' + seconds;
},
/**
* To be executed when fullscreen event is fired.
*
* @method fullscreenEvent
*/
fullscreenEvent: function () {
var fullScreenBtn = $(this.getClass('fullscreen'));
fullScreenBtn.toggleClass('fullscreen');
if (!this.fullscreen) {
this.selector.addClass('fullscreen');
fullScreenBtn.removeClass('hover');
this.fullscreen = true;
}
else {
this.selector.removeClass('fullscreen');
fullScreenBtn.removeClass('hover');
this.fullscreen = false;
}
this.setupProgressBar();
},
/**
* Get a class with prefix and "." selector. Ex. **.prefix** + **className**
*
* @method getClass
* @param {String} name Class name
* @return {String} **.** + **prefix** + **class name**
*/
getClass: function (name) {
return '.' + this.options.prefix + name;
},
/**
* Sum the size of each element inside control bar, except progress bar.
*
* @method getControlsSize
* @return {Integer} Sum of all elements size
*/
getControlsSize: function () {
var size = 0;
var _this = this;
this.selector.find(this.getClass('video-controls')).children().each(function () {
var element = $(this);
if (!element.hasClass(_this.setClass('progress-bar'))) {
size += element.outerWidth();
}
});
return size;
},
/**
* Get the default video when it is defined in options or get the first one when it's not defined.
*
* @method getDefaultVideo
* @return {Object} {{#crossLink "VideoPlayer/defaultVideo:property"}}{{/crossLink}} property
*/
getDefaultVideo: function () {
/**
* Default video object
*
* @property defaultVideo
*/
if (this.options.videos[this.options.defaultVideo]) {
this.defaultVideo = this.options.videos[this.options.defaultVideo];
return this.defaultVideo;
}
for (var video in this.options.videos) {
this.defaultVideo = this.options.videos[video];
return this.defaultVideo;
}
},
/**
* Get the maximum time of the current subtitle in seconds.
* @method getMaxTime
* @return {Integer} Maximum time from subtitle in seconds
*/
getMaxTime: function () {
if (typeof(this.subtitleObj.current) != 'undefined') {
var timeArr = this.subtitleObj.current[1].split(' --> ');
return this.timecodeToSec(timeArr[1]);
}
},
/**
* Get the minimum time of the current subtitle in seconds.
* @method getMinTime
* @return {Integer} Minimum time from subtitle in seconds
*/
getMinTime: function () {
if (typeof(this.subtitleObj.current) != 'undefined') {
var timeArr = this.subtitleObj.current[1].split(' --> ');
return this.timecodeToSec(timeArr[0]);
}
},
/**
* Get subtitles from {{#crossLink "VideoPlayer/defaultVideo:property"}}{{/crossLink}}.
* @return {String} Subtitle file to load.
*/
getSubtitle: function () {
return this.defaultVideo.subtitle;
},
/**
* Get the right video file using the extension that browser supports.
*
* @method getVideoSource
* @param {Object} videoObj A video object set in options or the video object set in {{#crossLink "VideoPlayer/defaultVideo:property"}}{{/crossLink}}
* @return {String} Video file to load
*/
getVideoSource: function (videoObj) {
if (!videoObj) {
videoObj = this.defaultVideo;
}
if (this.supportHTML5 && (($.browser.safari && !/Chrome[\/\s](\d+\.\d+)/.test(navigator.userAgent)) || $.browser.msie)) {
return videoObj.source.mp4;
}
else if (!this.supportHTML5) {
return this.options.fallbackOptions.relativePath + videoObj.source.mp4;
}
if (videoObj.source.ogg) {
return videoObj.source.ogg;
}
return videoObj.source.webm;
},
/**
* Hide poster after user clicks on play
*
* @method hidePoster
*/
hidePoster: function () {
this.selector.find(this.getClass('poster')).hide();
this.posterVisible = false;
},
/**
* Mute video when volume button is pressed up.
* @method muteVideo
*/
muteVideo: function () {
var volumeButton = this.selector.find(this.getClass('volume-button'));
var volumePosition = this.selector.find(this.getClass('volume-position'));
var video = this.video.get(0);
if (this.supportHTML5) {
if (video.muted) {
video.muted = false;
volumeButton.removeClass('muted');
volumePosition.height(video.volume * 100 + '%');
}
else {
video.muted = true;
volumeButton.addClass('muted');
volumePosition.height(0);
}
}
else {
if (this.flashMuted) {
this.flashMuted = false;
video.volume(this.flashVolume);
volumeButton.removeClass('muted');
volumePosition.height(this.flashVolume * 100 + '%');
}
else {
this.flashMuted = true;
this.flashVolume = video.getVolume();
video.volume(0);
volumeButton.addClass('muted');
volumePosition.height(0);
}
}
},
/**
* Event fired when video is paused.
*
* @method pauseEvent
*/
pauseEvent: function (element) {
$(element).parent().find(this.getClass('play')).removeClass('playing').addClass('paused');
if (this.options.onPause) {
this.options.onPause.call();
}
this.playing = false;
},
/**
* Event fired when video plays.
*
* @method playEvent
*/
playEvent: function (element) {
var _this = this;
var buffer = $(this.getClass('progress-buffer'));
this.bufferInterval = setInterval(function () {
_this.updateBuffer(element, buffer);
}, 1000);
$(element).parent().find(this.getClass('play')).removeClass('paused').addClass('playing');
this.seekVideoSetup(element);
if (this.options.onPlay) {
this.options.onPlay.call();
}
this.playing = true;
},
/**
* Play/Pause action.
*
* @method playPause
*/
playPause: function () {
var videoObj = this.video.get(0);
if (this.supportHTML5) {
if (videoObj.paused) {
videoObj.play();
} else {
videoObj.pause();
}
}
else {
if (videoObj.paused()) {
videoObj._play();
} else {
videoObj._pause();
}
}
},
/**
* Reset video controls when video source changes to an alternative version.
*
* @method resetVideo