| | 1 | var wpThemes; |
| | 2 | |
| | 3 | (function($){ |
| | 4 | var inputs = {}, Query; |
| | 5 | |
| | 6 | wpThemes = { |
| | 7 | timeToTriggerQuery: 150, |
| | 8 | minQueryAJAXDuration: 200, |
| | 9 | outListBottomThreshold: 200, |
| | 10 | noMoreResults: false, |
| | 11 | |
| | 12 | init : function() { |
| | 13 | inputs.nonce = $('#_ajax_fetch_list_nonce').val(); |
| | 14 | |
| | 15 | // Parse Query |
| | 16 | inputs.queryString = window.location.search; |
| | 17 | inputs.queryArray = wpThemes.parseQuery( inputs.queryString.substring( 1 ) ); |
| | 18 | |
| | 19 | // Handle Inputs from Query |
| | 20 | inputs.search = inputs.queryArray['s']; |
| | 21 | inputs.features = inputs.queryArray['features']; |
| | 22 | inputs.startPage = parseInt( inputs.queryArray['paged'] ); |
| | 23 | |
| | 24 | if ( isNaN( inputs.startPage ) ) |
| | 25 | inputs.startPage = 2; |
| | 26 | else |
| | 27 | inputs.startPage++; |
| | 28 | |
| | 29 | // FIXME: Debug Features Array |
| | 30 | // console.log("Features:" + inputs.features); |
| | 31 | |
| | 32 | // Link to output and start polling |
| | 33 | inputs.outList = $('#availablethemes'); |
| | 34 | |
| | 35 | // Generate Query |
| | 36 | wpThemes.query = new Query(); |
| | 37 | |
| | 38 | // Start Polling |
| | 39 | $(window).scroll( function(){ wpThemes.maybeLoad(); }); |
| | 40 | }, |
| | 41 | delayedCallback : function( func, delay ) { |
| | 42 | var timeoutTriggered, funcTriggered, funcArgs, funcContext; |
| | 43 | |
| | 44 | if ( ! delay ) |
| | 45 | return func; |
| | 46 | |
| | 47 | setTimeout( function() { |
| | 48 | if ( funcTriggered ) |
| | 49 | return func.apply( funcContext, funcArgs ); |
| | 50 | // Otherwise, wait. |
| | 51 | timeoutTriggered = true; |
| | 52 | }, delay); |
| | 53 | |
| | 54 | return function() { |
| | 55 | if ( timeoutTriggered ) |
| | 56 | return func.apply( this, arguments ); |
| | 57 | // Otherwise, wait. |
| | 58 | funcArgs = arguments; |
| | 59 | funcContext = this; |
| | 60 | funcTriggered = true; |
| | 61 | }; |
| | 62 | }, |
| | 63 | ajax: function( callback ) { |
| | 64 | var self = this, |
| | 65 | response = wpThemes.delayedCallback( function( results, params ) { |
| | 66 | self.process( results, params ); |
| | 67 | if ( callback ) |
| | 68 | callback( results, params ); |
| | 69 | }, wpThemes.minQueryAJAXDuration ); |
| | 70 | |
| | 71 | this.query.ajax( response ); |
| | 72 | }, |
| | 73 | process: function( results, params ) { |
| | 74 | // If no Results, for now, mark as no Matches, and bail. |
| | 75 | // Alternately: inputs.outList.append(wpThemesL10n.noMatchesFound); |
| | 76 | if ( ( results === undefined ) || |
| | 77 | ( results.rows.indexOf( "no-items" ) != -1 ) ) { |
| | 78 | this.noMoreResults = true; |
| | 79 | } else { |
| | 80 | inputs.outList.append(results.rows); |
| | 81 | } |
| | 82 | }, |
| | 83 | maybeLoad: function() { |
| | 84 | var self = this, |
| | 85 | el = $(document), |
| | 86 | bottom = el.scrollTop() + $(window).innerHeight(); |
| | 87 | |
| | 88 | /* // FIXME: Debug scroll trigger. |
| | 89 | console.log('scrollTop:'+ el.scrollTop() + |
| | 90 | '; scrollBottom:' + bottom + |
| | 91 | '; height:' + el.height() + |
| | 92 | '; checkVal:' + (el.height() - wpThemes.outListBottomThreshold)); |
| | 93 | */ |
| | 94 | |
| | 95 | if ( this.noMoreResults || |
| | 96 | !this.query.ready() || |
| | 97 | ( bottom < inputs.outList.height() - wpThemes.outListBottomThreshold ) ) |
| | 98 | return; |
| | 99 | |
| | 100 | setTimeout( function() { |
| | 101 | var newTop = el.scrollTop(), |
| | 102 | newBottom = newTop + $(window).innerHeight(); |
| | 103 | |
| | 104 | if ( !self.query.ready() || |
| | 105 | ( newBottom < inputs.outList.height() - wpThemes.outListBottomThreshold ) ) |
| | 106 | return; |
| | 107 | |
| | 108 | /* FIXME: Create/Add Spinner. |
| | 109 | self.waiting.show(); // Show Spinner |
| | 110 | el.scrollTop( newTop + self.waiting.outerHeight() ); // Scroll down? |
| | 111 | self.ajax( function() { self.waiting.hide(); }); // Hide Spinner |
| | 112 | */ |
| | 113 | self.ajax(); |
| | 114 | }, wpThemes.timeToTriggerQuery ); |
| | 115 | }, |
| | 116 | parseQuery: function( query ) { |
| | 117 | var Params = {}; |
| | 118 | if ( ! query ) {return Params;}// return empty object |
| | 119 | var Pairs = query.split(/[;&]/); |
| | 120 | for ( var i = 0; i < Pairs.length; i++ ) { |
| | 121 | var KeyVal = Pairs[i].split('='); |
| | 122 | if ( ! KeyVal || KeyVal.length != 2 ) {continue;} |
| | 123 | var key = unescape( KeyVal[0] ); |
| | 124 | var val = unescape( KeyVal[1] ); |
| | 125 | val = val.replace(/\+/g, ' '); |
| | 126 | key = key.replace(/\[.*\]$/g, ''); |
| | 127 | |
| | 128 | if ( Params[key] === undefined ) { |
| | 129 | Params[key] = val; |
| | 130 | } else { |
| | 131 | var oldVal = Params[key]; |
| | 132 | if ( ! jQuery.isArray( Params[key] ) ) |
| | 133 | Params[key] = new Array( oldVal, val ); |
| | 134 | else |
| | 135 | Params[key].push( val ); |
| | 136 | } |
| | 137 | } |
| | 138 | return Params; |
| | 139 | } |
| | 140 | } |
| | 141 | |
| | 142 | Query = function() { |
| | 143 | this.failedRequest = false; |
| | 144 | this.querying = false; |
| | 145 | this.page = inputs.startPage; |
| | 146 | } |
| | 147 | |
| | 148 | $.extend( Query.prototype, { |
| | 149 | ready: function() { |
| | 150 | return !( this.querying || this.failedRequest ); |
| | 151 | }, |
| | 152 | ajax: function( callback ) { |
| | 153 | var self = this, |
| | 154 | query = { |
| | 155 | action: 'fetch-list', |
| | 156 | paged: this.page, |
| | 157 | s: inputs.search, |
| | 158 | 'features[]': inputs.features, |
| | 159 | 'list_args': list_args, |
| | 160 | '_ajax_fetch_list_nonce' : inputs.nonce |
| | 161 | }; |
| | 162 | |
| | 163 | this.querying = true; |
| | 164 | $.get( ajaxurl, query, function(r) { |
| | 165 | self.page++; |
| | 166 | self.querying = false; |
| | 167 | self.failedRequest = !r; |
| | 168 | callback( r, query ); |
| | 169 | }, "json" ); |
| | 170 | } |
| | 171 | }); |
| | 172 | |
| | 173 | $(document).ready( wpThemes.init ); |
| | 174 | |
| | 175 | })(jQuery); |