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git-svn-id: http://core.svn.wordpress.org/trunk@20798 1a063a9b-81f0-0310-95a4-ce76da25c4cd
86 lines
2.1 KiB
JavaScript
86 lines
2.1 KiB
JavaScript
(function( exports, $ ){
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var api = wp.customize,
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debounce;
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debounce = function( fn, delay, context ) {
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var timeout;
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return function() {
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var args = arguments;
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context = context || this;
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clearTimeout( timeout );
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timeout = setTimeout( function() {
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timeout = null;
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fn.apply( context, args );
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}, delay );
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};
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};
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api.Preview = api.Messenger.extend({
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/**
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* Requires params:
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* - url - the URL of preview frame
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*
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* @todo: Perhaps add a window.onbeforeunload dialog in case the theme
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* somehow attempts to leave the page and we don't catch it
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* (which really shouldn't happen).
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*/
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initialize: function( url, options ) {
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var self = this;
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api.Messenger.prototype.initialize.call( this, url, null, options );
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this.body = $( document.body );
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this.body.on( 'click.preview', 'a', function( event ) {
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event.preventDefault();
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self.send( 'url', $(this).attr('href') );
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});
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// You cannot submit forms.
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// @todo: Namespace customizer settings so that we can mix the
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// $_POST data with the customize setting $_POST data.
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this.body.on( 'submit.preview', 'form', function( event ) {
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event.preventDefault();
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});
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this.window = $( window );
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this.window.on( 'scroll.preview', debounce( function() {
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self.send( 'scroll', self.window.scrollTop() );
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}, 200 ));
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this.bind( 'scroll', function( distance ) {
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self.window.scrollTop( distance );
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});
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}
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});
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$( function() {
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api.settings = window._wpCustomizeSettings;
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if ( ! api.settings )
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return;
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var preview, body;
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preview = new api.Preview( window.location.href );
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$.each( api.settings.values, function( id, value ) {
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api.create( id, value );
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});
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preview.bind( 'setting', function( args ) {
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var value = api( args.shift() );
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if ( value )
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value.apply( value, args );
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});
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body = $(document.body);
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// Auto update background color by default
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api( 'background_color', function( value ) {
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value.bind( function( to ) {
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body.css( 'background-color', to ? '#' + to : '' );
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});
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});
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});
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})( wp, jQuery ); |