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git-svn-id: http://svn.automattic.com/wordpress/trunk@20120 1a063a9b-81f0-0310-95a4-ce76da25c4cd
202 lines
5.1 KiB
JavaScript
202 lines
5.1 KiB
JavaScript
(function( exports, $ ){
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var api = wp.customize;
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api.Previewer = api.Messenger.extend({
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refreshBuffer: 250,
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/**
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* Requires params:
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* - iframe - a selector or jQuery element
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* - form - a selector or jQuery element
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* - url - the URL of preview frame
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*/
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initialize: function( params, options ) {
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$.extend( this, options || {} );
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this.loaded = $.proxy( this.loaded, this );
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this.loaderUuid = 0;
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/*
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* Wrap this.refresh to prevent it from hammering the servers:
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*
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* If refresh is called once and no other refresh requests are
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* loading, trigger the request immediately.
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*
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* If refresh is called while another refresh request is loading,
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* debounce the refresh requests:
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* 1. Stop the loading request (as it is instantly outdated).
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* 2. Trigger the new request once refresh hasn't been called for
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* self.refreshBuffer milliseconds.
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*/
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this.refresh = (function( self ) {
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var refresh = self.refresh,
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callback = function() {
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timeout = null;
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refresh.call( self );
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},
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timeout;
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return function() {
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if ( typeof timeout !== 'number' ) {
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if ( self.loading ) {
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self.loading.remove();
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delete self.loading;
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self.loader();
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} else {
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return callback();
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}
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}
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clearTimeout( timeout );
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timeout = setTimeout( callback, self.refreshBuffer );
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};
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})( this );
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this.iframe = api.ensure( params.iframe );
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this.form = api.ensure( params.form );
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this.name = this.iframe.prop('name');
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this.container = this.iframe.parent();
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api.Messenger.prototype.initialize.call( this, params.url, {
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targetWindow: this.iframe[0].contentWindow
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});
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this._formOriginalProps = {
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target: this.form.prop('target'),
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action: this.form.prop('action')
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};
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this.bind( 'url', function( url ) {
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// Bail if we're navigating to the current url, to a different origin, or wp-admin.
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if ( this.url() == url || 0 !== url.indexOf( this.origin() + '/' ) || -1 !== url.indexOf( 'wp-admin' ) )
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return;
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this.url( url );
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this.refresh();
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});
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this.refresh();
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// Prevent the form from saving when enter is pressed.
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this.form.on( 'keydown', function( e ) {
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if ( 13 === e.which ) // Enter
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e.preventDefault();
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});
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},
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loader: function() {
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if ( this.loading )
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return this.loading;
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this.loading = $('<iframe />', {
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name: this.name + '-loading-' + this.loaderUuid++
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}).appendTo( this.container );
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return this.loading;
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},
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loaded: function() {
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this.iframe.remove();
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this.iframe = this.loading;
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delete this.loading;
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this.iframe.prop( 'name', this.name );
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},
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refresh: function() {
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this.loader().one( 'load', this.loaded );
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this.submit({
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target: this.loader().prop('name'),
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action: this.url()
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});
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},
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submit: function( props ) {
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if ( props )
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this.form.prop( props );
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this.form.submit();
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if ( props )
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this.form.prop( this._formOriginalProps );
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}
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});
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/* =====================================================================
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* Ready.
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* ===================================================================== */
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$( function() {
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if ( ! api.settings )
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return;
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var controls = $('[name^="' + api.settings.prefix + '"]'),
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previewer, pickers, validateColor;
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// Initialize Previewer
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previewer = new api.Previewer({
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iframe: '#customize-preview iframe',
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form: '#customize-controls',
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url: api.settings.preview
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});
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$.each( api.settings.values, function( id, value ) {
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var elements = controls.filter( '[name="' + api.settings.prefix + id + '"]' ),
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setting = api.set( id, value );
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setting.control = new wp.customize.Element( elements );
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setting.control.link( setting );
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setting.link( setting.control );
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setting.bind( previewer.refresh );
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});
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// Temporary accordion code.
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$('.customize-section-title').click( function() {
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$( this ).parents('.customize-section').toggleClass( 'open' );
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return false;
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});
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// Button bindings.
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$('#save').click( function() {
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previewer.submit();
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return false;
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});
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// Set up color pickers
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pickers = $('.color-picker');
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validateColor = function( to ) {
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return /^[a-fA-F0-9]{3}([a-fA-F0-9]{3})?$/.test( to ) ? to : null;
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};
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$( '.farbtastic-placeholder', pickers ).each( function() {
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var picker = $(this),
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text = new api.Element( picker.siblings('input') ),
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parent = picker.parent(),
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toggle = parent.siblings('a'),
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value = api( parent.siblings('input').prop('name').replace( api.settings.prefix, '' ) ),
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farb;
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value.validate = validateColor;
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text.link( value );
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value.link( text );
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farb = $.farbtastic( this, function( color ) {
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value.set( color.replace( '#', '' ) );
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});
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value.bind( function( color ) {
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color = '#' + color;
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toggle.css( 'background', color );
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farb.setColor( color );
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});
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});
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$('.color-picker a').click( function(e) {
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$(this).siblings('div').toggle();
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});
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// Fetch prefixed settings.
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$('[name^="' + api.settings.prefix + '"]').each( function() {
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// console.log( this.name );
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});
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});
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})( wp, jQuery ); |