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component.js
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component.js
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// Using John Resig's Class implementation http://ejohn.org/blog/simple-javascript-inheritance/
// (function(){var initializing=false, fnTest=/xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/; _V_.Class = function(){}; _V_.Class.extend = function(prop) { var _super = this.prototype; initializing = true; var prototype = new this(); initializing = false; for (var name in prop) { prototype[name] = typeof prop[name] == "function" && typeof _super[name] == "function" && fnTest.test(prop[name]) ? (function(name, fn){ return function() { var tmp = this._super; this._super = _super[name]; var ret = fn.apply(this, arguments); this._super = tmp; return ret; }; })(name, prop[name]) : prop[name]; } function Class() { if ( !initializing && this.init ) this.init.apply(this, arguments); } Class.prototype = prototype; Class.constructor = Class; Class.extend = arguments.callee; return Class;};})();
(function(){
var initializing = false, fnTest = /xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/;
_V_.Class = function(){};
_V_.Class.extend = function(prop) {
var _super = this.prototype;
initializing = true;
var prototype = new this();
initializing = false;
for (var name in prop) {
prototype[name] = typeof prop[name] == "function" &&
typeof _super[name] == "function" && fnTest.test(prop[name]) ?
(function(name, fn){
return function() {
var tmp = this._super;
this._super = _super[name];
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
};
})(name, prop[name]) :
prop[name];
}
function Class() {
if ( !initializing && this.init ) {
return this.init.apply(this, arguments);
// Attempting to recreate accessing function form of class.
} else if (!initializing) {
return arguments.callee.prototype.init()
}
}
Class.prototype = prototype;
Class.constructor = Class;
Class.extend = arguments.callee;
return Class;
};
})();
/* Player Component- Base class for all UI objects
================================================================================ */
_V_.Component = _V_.Class.extend({
init: function(player, options){
this.player = player;
if (options && options.el) {
this.el = options.el;
} else {
this.el = this.createElement();
}
// Array of sub-components
if (options && options.components) {
_V_.each.call(this, options.components, function(comp){
this.addComponent(comp);
});
}
},
destroy: function(){},
createElement: function(type, attrs){
return _V_.createElement(type || "div", attrs);
},
buildCSSClass: function(){
// Child classes can include a function that does:
// return "CLASS NAME" + this._super();
return "";
},
// Add child components to this component.
// Will generate a new child component and then append child component's element to this component's element.
// Takes either the name of the UI component class, or an object that contains a name, UI Class, and options.
addComponent: function(nameORobj){
var name, componentClass, options, component;
if (typeof nameORobj == "string") {
name = nameORobj;
// Can also pass in object to define a different class than the name and add other options
} else {
name = nameORobj.name;
componentClass = nameORobj.componentClass;
options = nameORobj.options;
}
if (!componentClass) {
// Assume name of set is a lowercased name of the UI Class (PlayButton, etc.)
componentClass = _V_.capitalize(name);
}
// Create a new object & element for this controls set
// If there's no .player, this is a player
component = new _V_[componentClass](this.player || this, options);
if (this.components === undefined) {
this.components = [];
}
this.components.push(component);
// Add the UI object's element to the container div (box)
this.el.appendChild(component.el);
},
/* Display
================================================================================ */
show: function(){
this.el.style.display = "block";
},
hide: function(){
this.el.style.display = "none";
},
addClass: function(classToAdd){
_V_.addClass(this.el, classToAdd);
},
removeClass: function(classToRemove){
_V_.removeClass(this.el, classToRemove);
},
/* Events
================================================================================ */
addEvent: function(type, fn){
return _V_.addEvent(this.el, type, _V_.proxy(this, fn));
},
removeEvent: function(type, fn){
return _V_.removeEvent(this.el, type, fn);
},
triggerEvent: function(type, e){
return _V_.triggerEvent(this.el, type, e);
},
/* Ready - Trigger functions when component is ready
================================================================================ */
ready: function(fn){
if (!fn) return this;
if (this.isReady) {
fn.call(this);
} else {
if (this.readyQueue === undefined) {
this.readyQueue = [];
}
this.readyQueue.push(fn);
}
return this;
},
triggerReady: function(){
this.isReady = true;
if (this.readyQueue && this.readyQueue.length > 0) {
// Call all functions in ready queue
this.each(this.readyQueue, function(fn){
fn.call(this);
});
// Reset Ready Queue
this.readyQueue = [];
}
},
/* Utility
================================================================================ */
each: function(arr, fn){
if (!arr || arr.length === 0) { return; }
for (var i=0,j=arr.length; i<j; i++) {
if (fn.call(this, arr[i], i)) { break; }
}
},
extend: function(obj){
for (var attrname in obj) {
if (obj.hasOwnProperty(attrname)) { this[attrname]=obj[attrname]; }
}
},
// More easily attach 'this' to functions
proxy: function(fn){
return _V_.proxy(this, fn);
}
});