| | 56 | |
| | 57 | var wpThemes; |
| | 58 | |
| | 59 | (function($){ |
| | 60 | var inputs = {}, Query; |
| | 61 | |
| | 62 | wpThemes = { |
| | 63 | timeToTriggerQuery: 150, |
| | 64 | minQueryAJAXDuration: 200, |
| | 65 | outListBottomThreshold: 200, |
| | 66 | noMoreResults: false, |
| | 67 | |
| | 68 | init : function() { |
| | 69 | $('.pagination-links').hide(); |
| | 70 | |
| | 71 | inputs.nonce = $('#_ajax_fetch_list_nonce').val(); |
| | 72 | |
| | 73 | // Parse Query |
| | 74 | inputs.queryString = window.location.search; |
| | 75 | inputs.queryArray = wpThemes.parseQuery( inputs.queryString.substring( 1 ) ); |
| | 76 | |
| | 77 | // Handle Inputs from Query |
| | 78 | inputs.search = inputs.queryArray['s']; |
| | 79 | inputs.features = inputs.queryArray['features']; |
| | 80 | inputs.startPage = parseInt( inputs.queryArray['paged'] ); |
| | 81 | inputs.tab = inputs.queryArray['tab']; |
| | 82 | inputs.type = inputs.queryArray['type']; |
| | 83 | |
| | 84 | if ( isNaN( inputs.startPage ) ) |
| | 85 | inputs.startPage = 2; |
| | 86 | else |
| | 87 | inputs.startPage++; |
| | 88 | |
| | 89 | // Cache jQuery objects |
| | 90 | inputs.outList = $('#availablethemes'); |
| | 91 | inputs.waiting = $('div.tablenav.bottom').children( 'img.ajax-loading' ); |
| | 92 | inputs.window = $(window); |
| | 93 | |
| | 94 | // Generate Query |
| | 95 | wpThemes.query = new Query(); |
| | 96 | |
| | 97 | // Start Polling |
| | 98 | inputs.window.scroll( function(){ wpThemes.maybeLoad(); } ); |
| | 99 | }, |
| | 100 | delayedCallback : function( func, delay ) { |
| | 101 | var timeoutTriggered, funcTriggered, funcArgs, funcContext; |
| | 102 | |
| | 103 | if ( ! delay ) |
| | 104 | return func; |
| | 105 | |
| | 106 | setTimeout( function() { |
| | 107 | if ( funcTriggered ) |
| | 108 | return func.apply( funcContext, funcArgs ); |
| | 109 | // Otherwise, wait. |
| | 110 | timeoutTriggered = true; |
| | 111 | }, delay); |
| | 112 | |
| | 113 | return function() { |
| | 114 | if ( timeoutTriggered ) |
| | 115 | return func.apply( this, arguments ); |
| | 116 | // Otherwise, wait. |
| | 117 | funcArgs = arguments; |
| | 118 | funcContext = this; |
| | 119 | funcTriggered = true; |
| | 120 | }; |
| | 121 | }, |
| | 122 | ajax: function( callback ) { |
| | 123 | var self = this, |
| | 124 | response = wpThemes.delayedCallback( function( results, params ) { |
| | 125 | self.process( results, params ); |
| | 126 | if ( callback ) |
| | 127 | callback( results, params ); |
| | 128 | }, wpThemes.minQueryAJAXDuration ); |
| | 129 | |
| | 130 | this.query.ajax( response ); |
| | 131 | }, |
| | 132 | process: function( results, params ) { |
| | 133 | // If no Results, for now, mark as no Matches, and bail. |
| | 134 | // Alternately: inputs.outList.append(wpThemesL10n.noMatchesFound); |
| | 135 | if ( ( results === undefined ) || |
| | 136 | ( results.rows.indexOf( "no-items" ) != -1 ) ) { |
| | 137 | this.noMoreResults = true; |
| | 138 | } else { |
| | 139 | inputs.outList.append( results.rows ); |
| | 140 | } |
| | 141 | }, |
| | 142 | maybeLoad: function() { |
| | 143 | var self = this, |
| | 144 | el = $(document), |
| | 145 | bottom = el.scrollTop() + inputs.window.innerHeight(); |
| | 146 | |
| | 147 | if ( this.noMoreResults || |
| | 148 | !this.query.ready() || |
| | 149 | ( bottom < inputs.outList.height() - wpThemes.outListBottomThreshold ) ) |
| | 150 | return; |
| | 151 | |
| | 152 | setTimeout( function() { |
| | 153 | var newTop = el.scrollTop(), |
| | 154 | newBottom = newTop + inputs.window.innerHeight(); |
| | 155 | |
| | 156 | if ( !self.query.ready() || |
| | 157 | ( newBottom < inputs.outList.height() - wpThemes.outListBottomThreshold ) ) |
| | 158 | return; |
| | 159 | |
| | 160 | inputs.waiting.css( 'visibility', 'visible' ); // Show Spinner |
| | 161 | self.ajax( function() { inputs.waiting.css( 'visibility', 'hidden' ) } ); // Hide Spinner |
| | 162 | |
| | 163 | }, wpThemes.timeToTriggerQuery ); |
| | 164 | }, |
| | 165 | parseQuery: function( query ) { |
| | 166 | var Params = {}; |
| | 167 | if ( ! query ) {return Params;}// return empty object |
| | 168 | var Pairs = query.split(/[;&]/); |
| | 169 | for ( var i = 0; i < Pairs.length; i++ ) { |
| | 170 | var KeyVal = Pairs[i].split('='); |
| | 171 | if ( ! KeyVal || KeyVal.length != 2 ) {continue;} |
| | 172 | var key = unescape( KeyVal[0] ); |
| | 173 | var val = unescape( KeyVal[1] ); |
| | 174 | val = val.replace(/\+/g, ' '); |
| | 175 | key = key.replace(/\[.*\]$/g, ''); |
| | 176 | |
| | 177 | if ( Params[key] === undefined ) { |
| | 178 | Params[key] = val; |
| | 179 | } else { |
| | 180 | var oldVal = Params[key]; |
| | 181 | if ( ! jQuery.isArray( Params[key] ) ) |
| | 182 | Params[key] = new Array( oldVal, val ); |
| | 183 | else |
| | 184 | Params[key].push( val ); |
| | 185 | } |
| | 186 | } |
| | 187 | return Params; |
| | 188 | } |
| | 189 | } |
| | 190 | |
| | 191 | Query = function() { |
| | 192 | this.failedRequest = false; |
| | 193 | this.querying = false; |
| | 194 | this.page = inputs.startPage; |
| | 195 | } |
| | 196 | |
| | 197 | $.extend( Query.prototype, { |
| | 198 | ready: function() { |
| | 199 | return !( this.querying || this.failedRequest ); |
| | 200 | }, |
| | 201 | ajax: function( callback ) { |
| | 202 | var self = this, |
| | 203 | query = { |
| | 204 | action: 'fetch-list', |
| | 205 | tab: inputs.tab, |
| | 206 | paged: this.page, |
| | 207 | s: inputs.search, |
| | 208 | type: inputs.type, |
| | 209 | _ajax_fetch_list_nonce: inputs.nonce, |
| | 210 | 'features[]': inputs.features, |
| | 211 | 'list_args': list_args |
| | 212 | }; |
| | 213 | |
| | 214 | this.querying = true; |
| | 215 | $.get( ajaxurl, query, function(r) { |
| | 216 | self.page++; |
| | 217 | self.querying = false; |
| | 218 | self.failedRequest = !r; |
| | 219 | callback( r, query ); |
| | 220 | }, "json" ); |
| | 221 | } |
| | 222 | }); |
| | 223 | |
| | 224 | $(document).ready( wpThemes.init ); |
| | 225 | |
| | 226 | })(jQuery); |