%PDF-
%PDF-
Mini Shell
Mini Shell
/*
* Vide - v0.5.1
* Easy as hell jQuery plugin for video backgrounds.
* http://vodkabears.github.io/vide/
*
* Made by Ilya Makarov
* Under MIT License
*/
!(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(['jquery'], factory);
} else if (typeof exports === 'object') {
factory(require('jquery'));
} else {
factory(root.jQuery);
}
})(this, function($) {
'use strict';
/**
* Name of the plugin
* @private
* @const
* @type {String}
*/
var PLUGIN_NAME = 'vide';
/**
* Default settings
* @private
* @const
* @type {Object}
*/
var DEFAULTS = {
volume: 1,
playbackRate: 1,
muted: true,
loop: true,
autoplay: true,
position: '50% 50%',
posterType: 'detect',
resizing: true,
bgColor: 'transparent',
className: ''
};
/**
* Not implemented error message
* @private
* @const
* @type {String}
*/
var NOT_IMPLEMENTED_MSG = 'Not implemented';
/**
* Parse a string with options
* @private
* @param {String} str
* @returns {Object|String}
*/
function parseOptions(str) {
var obj = {};
var delimiterIndex;
var option;
var prop;
var val;
var arr;
var len;
var i;
// Remove spaces around delimiters and split
arr = str.replace(/\s*:\s*/g, ':').replace(/\s*,\s*/g, ',').split(',');
// Parse a string
for (i = 0, len = arr.length; i < len; i++) {
option = arr[i];
// Ignore urls and a string without colon delimiters
if (
option.search(/^(http|https|ftp):\/\//) !== -1 ||
option.search(':') === -1
) {
break;
}
delimiterIndex = option.indexOf(':');
prop = option.substring(0, delimiterIndex);
val = option.substring(delimiterIndex + 1);
// If val is an empty string, make it undefined
if (!val) {
val = undefined;
}
// Convert a string value if it is like a boolean
if (typeof val === 'string') {
val = val === 'true' || (val === 'false' ? false : val);
}
// Convert a string value if it is like a number
if (typeof val === 'string') {
val = !isNaN(val) ? +val : val;
}
obj[prop] = val;
}
// If nothing is parsed
if (prop == null && val == null) {
return str;
}
return obj;
}
/**
* Parse a position option
* @private
* @param {String} str
* @returns {Object}
*/
function parsePosition(str) {
str = '' + str;
// Default value is a center
var args = str.split(/\s+/);
var x = '50%';
var y = '50%';
var len;
var arg;
var i;
for (i = 0, len = args.length; i < len; i++) {
arg = args[i];
// Convert values
if (arg === 'left') {
x = '0%';
} else if (arg === 'right') {
x = '100%';
} else if (arg === 'top') {
y = '0%';
} else if (arg === 'bottom') {
y = '100%';
} else if (arg === 'center') {
if (i === 0) {
x = '50%';
} else {
y = '50%';
}
} else {
if (i === 0) {
x = arg;
} else {
y = arg;
}
}
}
return { x: x, y: y };
}
/**
* Search a poster
* @private
* @param {String} path
* @param {Function} callback
*/
function findPoster(path, callback) {
var onLoad = function() {
callback(this.src);
};
$('<img src="' + path + '.gif">').on('load', onLoad);
$('<img src="' + path + '.jpg">').on('load', onLoad);
$('<img src="' + path + '.jpeg">').on('load', onLoad);
$('<img src="' + path + '.png">').on('load', onLoad);
}
/**
* Vide constructor
* @param {HTMLElement} element
* @param {Object|String} path
* @param {Object|String} options
* @constructor
*/
function Vide(element, path, options) {
this.$element = $(element);
// Parse path
if (typeof path === 'string') {
path = parseOptions(path);
}
// Parse options
if (!options) {
options = {};
} else if (typeof options === 'string') {
options = parseOptions(options);
}
// Remove an extension
if (typeof path === 'string') {
path = path.replace(/\.\w*$/, '');
} else if (typeof path === 'object') {
for (var i in path) {
if (path.hasOwnProperty(i)) {
path[i] = path[i].replace(/\.\w*$/, '');
}
}
}
this.settings = $.extend({}, DEFAULTS, options);
this.path = path;
// https://github.com/VodkaBears/Vide/issues/110
try {
this.init();
} catch (e) {
if (e.message !== NOT_IMPLEMENTED_MSG) {
throw e;
}
}
}
/**
* Initialization
* @public
*/
Vide.prototype.init = function() {
var vide = this;
var path = vide.path;
var poster = path;
var sources = '';
var $element = vide.$element;
var settings = vide.settings;
var position = parsePosition(settings.position);
var posterType = settings.posterType;
var $video;
var $wrapper;
// Set styles of a video wrapper
$wrapper = vide.$wrapper = $('<div>')
.addClass(settings.className)
.css({
position: 'absolute',
'z-index': -1,
top: 0,
left: 0,
bottom: 0,
right: 0,
overflow: 'hidden',
'-webkit-background-size': 'cover',
'-moz-background-size': 'cover',
'-o-background-size': 'cover',
'background-size': 'cover',
'background-color': settings.bgColor,
'background-repeat': 'no-repeat',
'background-position': position.x + ' ' + position.y
});
// Get a poster path
if (typeof path === 'object') {
if (path.poster) {
poster = path.poster;
} else {
if (path.mp4) {
poster = path.mp4;
} else if (path.webm) {
poster = path.webm;
} else if (path.ogv) {
poster = path.ogv;
}
}
}
// Set a video poster
if (posterType === 'detect') {
findPoster(poster, function(url) {
$wrapper.css('background-image', 'url(' + url + ')');
});
} else if (posterType !== 'none') {
$wrapper.css('background-image', 'url(' + poster + '.' + posterType + ')');
}
// If a parent element has a static position, make it relative
if ($element.css('position') === 'static') {
$element.css('position', 'relative');
}
$element.prepend($wrapper);
if (typeof path === 'object') {
if (path.mp4) {
sources += '<source src="' + path.mp4 + '.mp4" type="video/mp4">';
}
if (path.webm) {
sources += '<source src="' + path.webm + '.webm" type="video/webm">';
}
if (path.ogv) {
sources += '<source src="' + path.ogv + '.ogv" type="video/ogg">';
}
$video = vide.$video = $('<video>' + sources + '</video>');
} else {
$video = vide.$video = $('<video>' +
'<source src="' + path + '.mp4" type="video/mp4">' +
'<source src="' + path + '.webm" type="video/webm">' +
'<source src="' + path + '.ogv" type="video/ogg">' +
'</video>');
}
// https://github.com/VodkaBears/Vide/issues/110
try {
$video
// Set video properties
.prop({
autoplay: settings.autoplay,
loop: settings.loop,
volume: settings.volume,
muted: settings.muted,
defaultMuted: settings.muted,
playbackRate: settings.playbackRate,
defaultPlaybackRate: settings.playbackRate
});
} catch (e) {
throw new Error(NOT_IMPLEMENTED_MSG);
}
// Video alignment
$video.css({
margin: 'auto',
position: 'absolute',
'z-index': -1,
top: position.y,
left: position.x,
'-webkit-transform': 'translate(-' + position.x + ', -' + position.y + ')',
'-ms-transform': 'translate(-' + position.x + ', -' + position.y + ')',
'-moz-transform': 'translate(-' + position.x + ', -' + position.y + ')',
transform: 'translate(-' + position.x + ', -' + position.y + ')',
// Disable visibility, while loading
visibility: 'hidden',
opacity: 0
})
// Resize a video, when it's loaded
.one('canplaythrough.' + PLUGIN_NAME, function() {
vide.resize();
})
// Make it visible, when it's already playing
.one('playing.' + PLUGIN_NAME, function() {
$video.css({
visibility: 'visible',
opacity: 1
});
$wrapper.css('background-image', 'none');
});
// Resize event is available only for 'window'
// Use another code solutions to detect DOM elements resizing
$element.on('resize.' + PLUGIN_NAME, function() {
if (settings.resizing) {
vide.resize();
}
});
// Append a video
$wrapper.append($video);
};
/**
* Get a video element
* @public
* @returns {HTMLVideoElement}
*/
Vide.prototype.getVideoObject = function() {
return this.$video[0];
};
/**
* Resize a video background
* @public
*/
Vide.prototype.resize = function() {
if (!this.$video) {
return;
}
var $wrapper = this.$wrapper;
var $video = this.$video;
var video = $video[0];
// Get a native video size
var videoHeight = video.videoHeight;
var videoWidth = video.videoWidth;
// Get a wrapper size
var wrapperHeight = $wrapper.height();
var wrapperWidth = $wrapper.width();
if (wrapperWidth / videoWidth > wrapperHeight / videoHeight) {
$video.css({
// +2 pixels to prevent an empty space after transformation
width: wrapperWidth + 2,
height: 'auto'
});
} else {
$video.css({
width: 'auto',
// +2 pixels to prevent an empty space after transformation
height: wrapperHeight + 2
});
}
};
/**
* Destroy a video background
* @public
*/
Vide.prototype.destroy = function() {
delete $[PLUGIN_NAME].lookup[this.index];
this.$video && this.$video.off(PLUGIN_NAME);
this.$element.off(PLUGIN_NAME).removeData(PLUGIN_NAME);
this.$wrapper.remove();
};
/**
* Special plugin object for instances.
* @public
* @type {Object}
*/
$[PLUGIN_NAME] = {
lookup: []
};
/**
* Plugin constructor
* @param {Object|String} path
* @param {Object|String} options
* @returns {JQuery}
* @constructor
*/
$.fn[PLUGIN_NAME] = function(path, options) {
var instance;
this.each(function() {
instance = $.data(this, PLUGIN_NAME);
// Destroy the plugin instance if exists
instance && instance.destroy();
// Create the plugin instance
instance = new Vide(this, path, options);
instance.index = $[PLUGIN_NAME].lookup.push(instance) - 1;
$.data(this, PLUGIN_NAME, instance);
});
return this;
};
$(document).ready(function() {
var $window = $(window);
// Window resize event listener
$window.on('resize.' + PLUGIN_NAME, function() {
for (var len = $[PLUGIN_NAME].lookup.length, i = 0, instance; i < len; i++) {
instance = $[PLUGIN_NAME].lookup[i];
if (instance && instance.settings.resizing) {
instance.resize();
}
}
});
// https://github.com/VodkaBears/Vide/issues/68
$window.on('unload.' + PLUGIN_NAME, function() {
return false;
});
// Auto initialization
// Add 'data-vide-bg' attribute with a path to the video without extension
// Also you can pass options throw the 'data-vide-options' attribute
// 'data-vide-options' must be like 'muted: false, volume: 0.5'
$(document).find('[data-' + PLUGIN_NAME + '-bg]').each(function(i, element) {
var $element = $(element);
var options = $element.data(PLUGIN_NAME + '-options');
var path = $element.data(PLUGIN_NAME + '-bg');
$element[PLUGIN_NAME](path, options);
});
});
});
Zerion Mini Shell 1.0