950 lines
24 KiB
JavaScript
950 lines
24 KiB
JavaScript
/** @namespace wp */
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window.wp = window.wp || {};
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(function( exports, $ ){
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var api = {}, ctor, inherits,
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slice = Array.prototype.slice;
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// Shared empty constructor function to aid in prototype-chain creation.
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ctor = function() {};
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/**
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* Helper function to correctly set up the prototype chain, for subclasses.
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* Similar to `goog.inherits`, but uses a hash of prototype properties and
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* class properties to be extended.
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*
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* @param object parent Parent class constructor to inherit from.
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* @param object protoProps Properties to apply to the prototype for use as class instance properties.
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* @param object staticProps Properties to apply directly to the class constructor.
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* @return child The subclassed constructor.
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*/
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inherits = function( parent, protoProps, staticProps ) {
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var child;
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// The constructor function for the new subclass is either defined by you
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// (the "constructor" property in your `extend` definition), or defaulted
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// by us to simply call `super()`.
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if ( protoProps && protoProps.hasOwnProperty( 'constructor' ) ) {
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child = protoProps.constructor;
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} else {
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child = function() {
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// Storing the result `super()` before returning the value
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// prevents a bug in Opera where, if the constructor returns
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// a function, Opera will reject the return value in favor of
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// the original object. This causes all sorts of trouble.
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var result = parent.apply( this, arguments );
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return result;
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};
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}
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// Inherit class (static) properties from parent.
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$.extend( child, parent );
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// Set the prototype chain to inherit from `parent`, without calling
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// `parent`'s constructor function.
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ctor.prototype = parent.prototype;
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child.prototype = new ctor();
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// Add prototype properties (instance properties) to the subclass,
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// if supplied.
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if ( protoProps )
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$.extend( child.prototype, protoProps );
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// Add static properties to the constructor function, if supplied.
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if ( staticProps )
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$.extend( child, staticProps );
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// Correctly set child's `prototype.constructor`.
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child.prototype.constructor = child;
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// Set a convenience property in case the parent's prototype is needed later.
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child.__super__ = parent.prototype;
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return child;
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};
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/**
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* Base class for object inheritance.
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*/
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api.Class = function( applicator, argsArray, options ) {
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var magic, args = arguments;
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if ( applicator && argsArray && api.Class.applicator === applicator ) {
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args = argsArray;
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$.extend( this, options || {} );
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}
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magic = this;
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/*
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* If the class has a method called "instance",
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* the return value from the class' constructor will be a function that
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* calls the "instance" method.
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*
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* It is also an object that has properties and methods inside it.
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*/
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if ( this.instance ) {
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magic = function() {
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return magic.instance.apply( magic, arguments );
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};
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$.extend( magic, this );
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}
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magic.initialize.apply( magic, args );
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return magic;
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};
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/**
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* Creates a subclass of the class.
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*
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* @param object protoProps Properties to apply to the prototype.
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* @param object staticProps Properties to apply directly to the class.
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* @return child The subclass.
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*/
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api.Class.extend = function( protoProps, classProps ) {
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var child = inherits( this, protoProps, classProps );
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child.extend = this.extend;
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return child;
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};
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api.Class.applicator = {};
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/**
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* Initialize a class instance.
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*
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* Override this function in a subclass as needed.
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*/
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api.Class.prototype.initialize = function() {};
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/*
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* Checks whether a given instance extended a constructor.
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*
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* The magic surrounding the instance parameter causes the instanceof
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* keyword to return inaccurate results; it defaults to the function's
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* prototype instead of the constructor chain. Hence this function.
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*/
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api.Class.prototype.extended = function( constructor ) {
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var proto = this;
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while ( typeof proto.constructor !== 'undefined' ) {
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if ( proto.constructor === constructor )
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return true;
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if ( typeof proto.constructor.__super__ === 'undefined' )
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return false;
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proto = proto.constructor.__super__;
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}
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return false;
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};
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/**
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* An events manager object, offering the ability to bind to and trigger events.
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*
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* Used as a mixin.
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*/
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api.Events = {
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trigger: function( id ) {
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if ( this.topics && this.topics[ id ] )
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this.topics[ id ].fireWith( this, slice.call( arguments, 1 ) );
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return this;
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},
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bind: function( id ) {
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this.topics = this.topics || {};
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this.topics[ id ] = this.topics[ id ] || $.Callbacks();
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this.topics[ id ].add.apply( this.topics[ id ], slice.call( arguments, 1 ) );
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return this;
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},
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unbind: function( id ) {
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if ( this.topics && this.topics[ id ] )
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this.topics[ id ].remove.apply( this.topics[ id ], slice.call( arguments, 1 ) );
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return this;
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}
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};
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/**
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* Observable values that support two-way binding.
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*
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* @memberOf wp.customize
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* @alias wp.customize.Value
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*
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* @constructor
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*/
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api.Value = api.Class.extend(/** @lends wp.customize.Value.prototype */{
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/**
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* @param {mixed} initial The initial value.
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* @param {object} options
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*/
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initialize: function( initial, options ) {
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this._value = initial; // @todo: potentially change this to a this.set() call.
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this.callbacks = $.Callbacks();
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this._dirty = false;
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$.extend( this, options || {} );
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this.set = $.proxy( this.set, this );
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},
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/*
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* Magic. Returns a function that will become the instance.
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* Set to null to prevent the instance from extending a function.
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*/
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instance: function() {
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return arguments.length ? this.set.apply( this, arguments ) : this.get();
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},
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/**
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* Get the value.
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*
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* @return {mixed}
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*/
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get: function() {
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return this._value;
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},
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/**
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* Set the value and trigger all bound callbacks.
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*
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* @param {object} to New value.
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*/
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set: function( to ) {
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var from = this._value;
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to = this._setter.apply( this, arguments );
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to = this.validate( to );
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// Bail if the sanitized value is null or unchanged.
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if ( null === to || _.isEqual( from, to ) ) {
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return this;
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}
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this._value = to;
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this._dirty = true;
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this.callbacks.fireWith( this, [ to, from ] );
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return this;
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},
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_setter: function( to ) {
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return to;
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},
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setter: function( callback ) {
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var from = this.get();
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this._setter = callback;
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// Temporarily clear value so setter can decide if it's valid.
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this._value = null;
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this.set( from );
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return this;
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},
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resetSetter: function() {
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this._setter = this.constructor.prototype._setter;
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this.set( this.get() );
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return this;
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},
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validate: function( value ) {
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return value;
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},
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/**
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* Bind a function to be invoked whenever the value changes.
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*
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* @param {...Function} A function, or multiple functions, to add to the callback stack.
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*/
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bind: function() {
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this.callbacks.add.apply( this.callbacks, arguments );
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return this;
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},
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/**
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* Unbind a previously bound function.
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*
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* @param {...Function} A function, or multiple functions, to remove from the callback stack.
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*/
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unbind: function() {
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this.callbacks.remove.apply( this.callbacks, arguments );
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return this;
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},
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link: function() { // values*
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var set = this.set;
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$.each( arguments, function() {
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this.bind( set );
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});
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return this;
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},
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unlink: function() { // values*
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var set = this.set;
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$.each( arguments, function() {
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this.unbind( set );
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});
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return this;
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},
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sync: function() { // values*
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var that = this;
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$.each( arguments, function() {
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that.link( this );
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this.link( that );
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});
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return this;
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},
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unsync: function() { // values*
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var that = this;
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$.each( arguments, function() {
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that.unlink( this );
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this.unlink( that );
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});
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return this;
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}
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});
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/**
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* A collection of observable values.
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*
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* @memberOf wp.customize
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* @alias wp.customize.Values
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*
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* @constructor
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* @augments wp.customize.Class
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* @mixes wp.customize.Events
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*/
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api.Values = api.Class.extend(/** @lends wp.customize.Values.prototype */{
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/**
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* The default constructor for items of the collection.
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*
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* @type {object}
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*/
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defaultConstructor: api.Value,
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initialize: function( options ) {
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$.extend( this, options || {} );
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this._value = {};
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this._deferreds = {};
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},
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/**
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* Get the instance of an item from the collection if only ID is specified.
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*
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* If more than one argument is supplied, all are expected to be IDs and
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* the last to be a function callback that will be invoked when the requested
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* items are available.
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*
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* @see {api.Values.when}
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*
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* @param {string} id ID of the item.
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* @param {...} Zero or more IDs of items to wait for and a callback
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* function to invoke when they're available. Optional.
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* @return {mixed} The item instance if only one ID was supplied.
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* A Deferred Promise object if a callback function is supplied.
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*/
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instance: function( id ) {
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if ( arguments.length === 1 )
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return this.value( id );
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return this.when.apply( this, arguments );
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},
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/**
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* Get the instance of an item.
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*
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* @param {string} id The ID of the item.
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* @return {[type]} [description]
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*/
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value: function( id ) {
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return this._value[ id ];
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},
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/**
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* Whether the collection has an item with the given ID.
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*
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* @param {string} id The ID of the item to look for.
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* @return {Boolean}
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*/
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has: function( id ) {
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return typeof this._value[ id ] !== 'undefined';
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},
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/**
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* Add an item to the collection.
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*
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* @param {string} id The ID of the item.
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* @param {mixed} value The item instance.
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* @return {mixed} The new item's instance.
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*/
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add: function( id, value ) {
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if ( this.has( id ) )
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return this.value( id );
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this._value[ id ] = value;
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value.parent = this;
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// Propagate a 'change' event on an item up to the collection.
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if ( value.extended( api.Value ) )
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value.bind( this._change );
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this.trigger( 'add', value );
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// If a deferred object exists for this item,
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// resolve it.
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if ( this._deferreds[ id ] )
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this._deferreds[ id ].resolve();
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return this._value[ id ];
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},
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/**
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* Create a new item of the collection using the collection's default constructor
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* and store it in the collection.
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*
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* @param {string} id The ID of the item.
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* @param {mixed} value Any extra arguments are passed into the item's initialize method.
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* @return {mixed} The new item's instance.
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*/
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create: function( id ) {
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return this.add( id, new this.defaultConstructor( api.Class.applicator, slice.call( arguments, 1 ) ) );
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},
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/**
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* Iterate over all items in the collection invoking the provided callback.
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*
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* @param {Function} callback Function to invoke.
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* @param {object} context Object context to invoke the function with. Optional.
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*/
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each: function( callback, context ) {
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context = typeof context === 'undefined' ? this : context;
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$.each( this._value, function( key, obj ) {
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callback.call( context, obj, key );
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});
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},
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/**
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* Remove an item from the collection.
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*
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* @param {string} id The ID of the item to remove.
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*/
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remove: function( id ) {
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var value = this.value( id );
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if ( value ) {
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// Trigger event right before the element is removed from the collection.
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this.trigger( 'remove', value );
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if ( value.extended( api.Value ) ) {
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value.unbind( this._change );
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}
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delete value.parent;
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}
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delete this._value[ id ];
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delete this._deferreds[ id ];
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// Trigger removed event after the item has been eliminated from the collection.
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if ( value ) {
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this.trigger( 'removed', value );
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}
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},
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/**
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* Runs a callback once all requested values exist.
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*
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* when( ids*, [callback] );
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*
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* For example:
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* when( id1, id2, id3, function( value1, value2, value3 ) {} );
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*
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* @returns $.Deferred.promise();
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*/
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when: function() {
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var self = this,
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ids = slice.call( arguments ),
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dfd = $.Deferred();
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// If the last argument is a callback, bind it to .done()
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if ( $.isFunction( ids[ ids.length - 1 ] ) )
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dfd.done( ids.pop() );
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/*
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* Create a stack of deferred objects for each item that is not
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* yet available, and invoke the supplied callback when they are.
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*/
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$.when.apply( $, $.map( ids, function( id ) {
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if ( self.has( id ) )
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return;
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/*
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* The requested item is not available yet, create a deferred
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* object to resolve when it becomes available.
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*/
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return self._deferreds[ id ] = self._deferreds[ id ] || $.Deferred();
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})).done( function() {
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var values = $.map( ids, function( id ) {
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return self( id );
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});
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// If a value is missing, we've used at least one expired deferred.
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// Call Values.when again to generate a new deferred.
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if ( values.length !== ids.length ) {
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// ids.push( callback );
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self.when.apply( self, ids ).done( function() {
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dfd.resolveWith( self, values );
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});
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return;
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}
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dfd.resolveWith( self, values );
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});
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return dfd.promise();
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},
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/**
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* A helper function to propagate a 'change' event from an item
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* to the collection itself.
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*/
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_change: function() {
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this.parent.trigger( 'change', this );
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}
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});
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// Create a global events bus on the Customizer.
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$.extend( api.Values.prototype, api.Events );
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/**
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* Cast a string to a jQuery collection if it isn't already.
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*
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* @param {string|jQuery collection} element
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*/
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api.ensure = function( element ) {
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return typeof element == 'string' ? $( element ) : element;
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};
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/**
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* An observable value that syncs with an element.
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*
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* Handles inputs, selects, and textareas by default.
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*
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* @memberOf wp.customize
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* @alias wp.customize.Element
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*
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* @constructor
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* @augments wp.customize.Value
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* @augments wp.customize.Class
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*/
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api.Element = api.Value.extend(/** @lends wp.customize.Element */{
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initialize: function( element, options ) {
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var self = this,
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synchronizer = api.Element.synchronizer.html,
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type, update, refresh;
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this.element = api.ensure( element );
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this.events = '';
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if ( this.element.is( 'input, select, textarea' ) ) {
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type = this.element.prop( 'type' );
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this.events += ' change input';
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synchronizer = api.Element.synchronizer.val;
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if ( this.element.is( 'input' ) && api.Element.synchronizer[ type ] ) {
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synchronizer = api.Element.synchronizer[ type ];
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}
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}
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api.Value.prototype.initialize.call( this, null, $.extend( options || {}, synchronizer ) );
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this._value = this.get();
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update = this.update;
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refresh = this.refresh;
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this.update = function( to ) {
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if ( to !== refresh.call( self ) ) {
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update.apply( this, arguments );
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}
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};
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this.refresh = function() {
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self.set( refresh.call( self ) );
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};
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this.bind( this.update );
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this.element.bind( this.events, this.refresh );
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},
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find: function( selector ) {
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return $( selector, this.element );
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},
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refresh: function() {},
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update: function() {}
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});
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api.Element.synchronizer = {};
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$.each( [ 'html', 'val' ], function( index, method ) {
|
|
api.Element.synchronizer[ method ] = {
|
|
update: function( to ) {
|
|
this.element[ method ]( to );
|
|
},
|
|
refresh: function() {
|
|
return this.element[ method ]();
|
|
}
|
|
};
|
|
});
|
|
|
|
api.Element.synchronizer.checkbox = {
|
|
update: function( to ) {
|
|
this.element.prop( 'checked', to );
|
|
},
|
|
refresh: function() {
|
|
return this.element.prop( 'checked' );
|
|
}
|
|
};
|
|
|
|
api.Element.synchronizer.radio = {
|
|
update: function( to ) {
|
|
this.element.filter( function() {
|
|
return this.value === to;
|
|
}).prop( 'checked', true );
|
|
},
|
|
refresh: function() {
|
|
return this.element.filter( ':checked' ).val();
|
|
}
|
|
};
|
|
|
|
$.support.postMessage = !! window.postMessage;
|
|
|
|
/**
|
|
* A communicator for sending data from one window to another over postMessage.
|
|
*
|
|
* @memberOf wp.customize
|
|
* @alias wp.customize.Messenger
|
|
*
|
|
* @constructor
|
|
* @augments wp.customize.Class
|
|
* @mixes wp.customize.Events
|
|
*/
|
|
api.Messenger = api.Class.extend(/** @lends wp.customize.Messenger.prototype */{
|
|
/**
|
|
* Create a new Value.
|
|
*
|
|
* @param {string} key Unique identifier.
|
|
* @param {mixed} initial Initial value.
|
|
* @param {mixed} options Options hash. Optional.
|
|
* @return {Value} Class instance of the Value.
|
|
*/
|
|
add: function( key, initial, options ) {
|
|
return this[ key ] = new api.Value( initial, options );
|
|
},
|
|
|
|
/**
|
|
* Initialize Messenger.
|
|
*
|
|
* @param {object} params - Parameters to configure the messenger.
|
|
* {string} params.url - The URL to communicate with.
|
|
* {window} params.targetWindow - The window instance to communicate with. Default window.parent.
|
|
* {string} params.channel - If provided, will send the channel with each message and only accept messages a matching channel.
|
|
* @param {object} options - Extend any instance parameter or method with this object.
|
|
*/
|
|
initialize: function( params, options ) {
|
|
// Target the parent frame by default, but only if a parent frame exists.
|
|
var defaultTarget = window.parent === window ? null : window.parent;
|
|
|
|
$.extend( this, options || {} );
|
|
|
|
this.add( 'channel', params.channel );
|
|
this.add( 'url', params.url || '' );
|
|
this.add( 'origin', this.url() ).link( this.url ).setter( function( to ) {
|
|
var urlParser = document.createElement( 'a' );
|
|
urlParser.href = to;
|
|
// Port stripping needed by IE since it adds to host but not to event.origin.
|
|
return urlParser.protocol + '//' + urlParser.host.replace( /:(80|443)$/, '' );
|
|
});
|
|
|
|
// first add with no value
|
|
this.add( 'targetWindow', null );
|
|
// This avoids SecurityErrors when setting a window object in x-origin iframe'd scenarios.
|
|
this.targetWindow.set = function( to ) {
|
|
var from = this._value;
|
|
|
|
to = this._setter.apply( this, arguments );
|
|
to = this.validate( to );
|
|
|
|
if ( null === to || from === to ) {
|
|
return this;
|
|
}
|
|
|
|
this._value = to;
|
|
this._dirty = true;
|
|
|
|
this.callbacks.fireWith( this, [ to, from ] );
|
|
|
|
return this;
|
|
};
|
|
// now set it
|
|
this.targetWindow( params.targetWindow || defaultTarget );
|
|
|
|
|
|
// Since we want jQuery to treat the receive function as unique
|
|
// to this instance, we give the function a new guid.
|
|
//
|
|
// This will prevent every Messenger's receive function from being
|
|
// unbound when calling $.off( 'message', this.receive );
|
|
this.receive = $.proxy( this.receive, this );
|
|
this.receive.guid = $.guid++;
|
|
|
|
$( window ).on( 'message', this.receive );
|
|
},
|
|
|
|
destroy: function() {
|
|
$( window ).off( 'message', this.receive );
|
|
},
|
|
|
|
/**
|
|
* Receive data from the other window.
|
|
*
|
|
* @param {jQuery.Event} event Event with embedded data.
|
|
*/
|
|
receive: function( event ) {
|
|
var message;
|
|
|
|
event = event.originalEvent;
|
|
|
|
if ( ! this.targetWindow || ! this.targetWindow() ) {
|
|
return;
|
|
}
|
|
|
|
// Check to make sure the origin is valid.
|
|
if ( this.origin() && event.origin !== this.origin() )
|
|
return;
|
|
|
|
// Ensure we have a string that's JSON.parse-able
|
|
if ( typeof event.data !== 'string' || event.data[0] !== '{' ) {
|
|
return;
|
|
}
|
|
|
|
message = JSON.parse( event.data );
|
|
|
|
// Check required message properties.
|
|
if ( ! message || ! message.id || typeof message.data === 'undefined' )
|
|
return;
|
|
|
|
// Check if channel names match.
|
|
if ( ( message.channel || this.channel() ) && this.channel() !== message.channel )
|
|
return;
|
|
|
|
this.trigger( message.id, message.data );
|
|
},
|
|
|
|
/**
|
|
* Send data to the other window.
|
|
*
|
|
* @param {string} id The event name.
|
|
* @param {object} data Data.
|
|
*/
|
|
send: function( id, data ) {
|
|
var message;
|
|
|
|
data = typeof data === 'undefined' ? null : data;
|
|
|
|
if ( ! this.url() || ! this.targetWindow() )
|
|
return;
|
|
|
|
message = { id: id, data: data };
|
|
if ( this.channel() )
|
|
message.channel = this.channel();
|
|
|
|
this.targetWindow().postMessage( JSON.stringify( message ), this.origin() );
|
|
}
|
|
});
|
|
|
|
// Add the Events mixin to api.Messenger.
|
|
$.extend( api.Messenger.prototype, api.Events );
|
|
|
|
/**
|
|
* Notification.
|
|
*
|
|
* @class
|
|
* @augments wp.customize.Class
|
|
* @since 4.6.0
|
|
*
|
|
* @memberOf wp.customize
|
|
* @alias wp.customize.Notification
|
|
*
|
|
* @param {string} code - The error code.
|
|
* @param {object} params - Params.
|
|
* @param {string} params.message=null - The error message.
|
|
* @param {string} [params.type=error] - The notification type.
|
|
* @param {boolean} [params.fromServer=false] - Whether the notification was server-sent.
|
|
* @param {string} [params.setting=null] - The setting ID that the notification is related to.
|
|
* @param {*} [params.data=null] - Any additional data.
|
|
*/
|
|
api.Notification = api.Class.extend(/** @lends wp.customize.Notification.prototype */{
|
|
|
|
/**
|
|
* Template function for rendering the notification.
|
|
*
|
|
* This will be populated with template option or else it will be populated with template from the ID.
|
|
*
|
|
* @since 4.9.0
|
|
* @var {Function}
|
|
*/
|
|
template: null,
|
|
|
|
/**
|
|
* ID for the template to render the notification.
|
|
*
|
|
* @since 4.9.0
|
|
* @var {string}
|
|
*/
|
|
templateId: 'customize-notification',
|
|
|
|
/**
|
|
* Additional class names to add to the notification container.
|
|
*
|
|
* @since 4.9.0
|
|
* @var {string}
|
|
*/
|
|
classes: '',
|
|
|
|
/**
|
|
* Initialize notification.
|
|
*
|
|
* @since 4.9.0
|
|
*
|
|
* @param {string} code - Notification code.
|
|
* @param {object} params - Notification parameters.
|
|
* @param {string} params.message - Message.
|
|
* @param {string} [params.type=error] - Type.
|
|
* @param {string} [params.setting] - Related setting ID.
|
|
* @param {Function} [params.template] - Function for rendering template. If not provided, this will come from templateId.
|
|
* @param {string} [params.templateId] - ID for template to render the notification.
|
|
* @param {string} [params.classes] - Additional class names to add to the notification container.
|
|
* @param {boolean} [params.dismissible] - Whether the notification can be dismissed.
|
|
*/
|
|
initialize: function( code, params ) {
|
|
var _params;
|
|
this.code = code;
|
|
_params = _.extend(
|
|
{
|
|
message: null,
|
|
type: 'error',
|
|
fromServer: false,
|
|
data: null,
|
|
setting: null,
|
|
template: null,
|
|
dismissible: false,
|
|
classes: ''
|
|
},
|
|
params
|
|
);
|
|
delete _params.code;
|
|
_.extend( this, _params );
|
|
},
|
|
|
|
/**
|
|
* Render the notification.
|
|
*
|
|
* @since 4.9.0
|
|
*
|
|
* @returns {jQuery} Notification container element.
|
|
*/
|
|
render: function() {
|
|
var notification = this, container, data;
|
|
if ( ! notification.template ) {
|
|
notification.template = wp.template( notification.templateId );
|
|
}
|
|
data = _.extend( {}, notification, {
|
|
alt: notification.parent && notification.parent.alt
|
|
} );
|
|
container = $( notification.template( data ) );
|
|
|
|
if ( notification.dismissible ) {
|
|
container.find( '.notice-dismiss' ).on( 'click', function() {
|
|
if ( notification.parent ) {
|
|
notification.parent.remove( notification.code );
|
|
} else {
|
|
container.remove();
|
|
}
|
|
});
|
|
}
|
|
|
|
return container;
|
|
}
|
|
});
|
|
|
|
// The main API object is also a collection of all customizer settings.
|
|
api = $.extend( new api.Values(), api );
|
|
|
|
/**
|
|
* Get all customize settings.
|
|
*
|
|
* @memberOf wp.customize
|
|
*
|
|
* @return {object}
|
|
*/
|
|
api.get = function() {
|
|
var result = {};
|
|
|
|
this.each( function( obj, key ) {
|
|
result[ key ] = obj.get();
|
|
});
|
|
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Utility function namespace
|
|
*
|
|
* @namespace wp.customize.utils
|
|
*/
|
|
api.utils = {};
|
|
|
|
/**
|
|
* Parse query string.
|
|
*
|
|
* @since 4.7.0
|
|
* @access public
|
|
* @memberOf wp.customize.utils
|
|
*
|
|
* @param {string} queryString Query string.
|
|
* @returns {object} Parsed query string.
|
|
*/
|
|
api.utils.parseQueryString = function parseQueryString( queryString ) {
|
|
var queryParams = {};
|
|
_.each( queryString.split( '&' ), function( pair ) {
|
|
var parts, key, value;
|
|
parts = pair.split( '=', 2 );
|
|
if ( ! parts[0] ) {
|
|
return;
|
|
}
|
|
key = decodeURIComponent( parts[0].replace( /\+/g, ' ' ) );
|
|
key = key.replace( / /g, '_' ); // What PHP does.
|
|
if ( _.isUndefined( parts[1] ) ) {
|
|
value = null;
|
|
} else {
|
|
value = decodeURIComponent( parts[1].replace( /\+/g, ' ' ) );
|
|
}
|
|
queryParams[ key ] = value;
|
|
} );
|
|
return queryParams;
|
|
};
|
|
|
|
/**
|
|
* Expose the API publicly on window.wp.customize
|
|
*
|
|
* @namespace wp.customize
|
|
*/
|
|
exports.customize = api;
|
|
})( wp, jQuery );
|