| @@ -1,10 +1,11 @@ | ||
| 1 | 1 | /* global console */ |
| 2 | 2 | /* global visualizer */ |
| 3 | 3 | /* global jQuery */ |
| 4 | -var vizClipboard1=null; | |
| 4 | +window['vizClipboard1'] = window['vizClipboard1'] || null; | |
| 5 | +window['vizClipboard2'] = window['vizClipboard2'] || null; | |
| 5 | 6 | (function($, visualizer){ |
| 6 | - | |
| 7 | + | |
| 7 | 8 | function initActionsButtons(v) { |
| 8 | 9 | if($('a.visualizer-chart-shortcode').length > 0 && vizClipboard1 === null) { |
| 9 | 10 | vizClipboard1 = new ClipboardJS('a.visualizer-chart-shortcode'); // jshint ignore:line |
| 10 | 11 | vizClipboard1.on('success', function(e) { |
| @@ -12,14 +13,14 @@ | ||
| 12 | 13 | |
| 13 | 14 | }); |
| 14 | 15 | } |
| 15 | 16 | |
| 16 | - if($('a.visualizer-action[data-visualizer-type=copy]').length > 0) { | |
| 17 | + if($('a.visualizer-action[data-visualizer-type=copy]').length > 0 && vizClipboard2 === null) { | |
| 17 | 18 | $('a.visualizer-action[data-visualizer-type=copy]').on('click', function(e) { |
| 18 | 19 | e.preventDefault(); |
| 19 | 20 | }); |
| 20 | - var clipboard = new ClipboardJS('a.visualizer-action[data-visualizer-type=copy]'); // jshint ignore:line | |
| 21 | - clipboard.on('success', function(e) { | |
| 21 | + vizClipboard2 = new ClipboardJS('a.visualizer-action[data-visualizer-type=copy]'); // jshint ignore:line | |
| 22 | + vizClipboard2.on('success', function(e) { | |
| 22 | 23 | window.alert(v.i10n['copied']); |
| 23 | 24 | }); |
| 24 | 25 | } |
| 25 | 26 | $('a.visualizer-action[data-visualizer-type!=copy]').off('click').on('click', function(e) { |
| @@ -106,19 +107,12 @@ | ||
| 106 | 107 | initActionsButtons(visualizer); |
| 107 | 108 | registerDefaultActions(); |
| 108 | 109 | }); |
| 109 | 110 | |
| 110 | - // Refresh charts if chart not generated. | |
| 111 | - function refreshEachCharts() { | |
| 112 | - setTimeout( function() { | |
| 113 | - displayChartsOnFrontEnd(); | |
| 114 | - }, 100 ); | |
| 115 | - } | |
| 116 | - | |
| 117 | 111 | function initChartDisplay() { |
| 118 | 112 | if(visualizer.is_front == true){ // jshint ignore:line |
| 119 | 113 | displayChartsOnFrontEnd(); |
| 120 | - }else{ | |
| 114 | + } else { | |
| 121 | 115 | showChart(); |
| 122 | 116 | } |
| 123 | 117 | } |
| 124 | 118 | |
| @@ -134,16 +128,48 @@ | ||
| 134 | 128 | $('body').trigger('visualizer:render:chart:start', viz); |
| 135 | 129 | } |
| 136 | 130 | |
| 137 | 131 | function displayChartsOnFrontEnd() { |
| 138 | - // display all charts that are NOT to be lazy-loaded. | |
| 139 | - $( 'div.viz-facade-loaded:not(.visualizer-lazy):not(.visualizer-cw-error):empty' ).removeClass( 'viz-facade-loaded' ); | |
| 140 | - $('div.visualizer-front:not(.visualizer-lazy):not(.viz-facade-loaded)').each(function(index, element){ | |
| 141 | - if ( $(element).is(':visible') ) { | |
| 142 | - var id = $(element).addClass('viz-facade-loaded').attr('id'); | |
| 132 | + function renderVisibleLazyCharts() { | |
| 133 | + $('div.visualizer-front:not(.viz-facade-loaded):not(.visualizer-lazy):not(.visualizer-cw-error):empty').each(function(index, element){ | |
| 134 | + // Do not render charts that are intentionally hidden. | |
| 135 | + const style = window.getComputedStyle(element); | |
| 136 | + if (style.display === 'none' || style.visibility === 'hidden') { | |
| 137 | + return; | |
| 138 | + } | |
| 139 | + | |
| 140 | + // Only render charts that are currently within the viewport. | |
| 141 | + const rect = element.getBoundingClientRect(); | |
| 142 | + const inViewport = rect.bottom >= 0 && rect.top <= (window.innerHeight || document.documentElement.clientHeight); | |
| 143 | + if (!inViewport) { | |
| 144 | + return; | |
| 145 | + } | |
| 146 | + | |
| 147 | + const id = $(element).addClass('viz-facade-loaded').attr('id'); | |
| 148 | + setTimeout(function(){ | |
| 149 | + // Add a short delay between each chart to avoid overloading the browser event loop. | |
| 150 | + showChart(id); | |
| 151 | + }, ( index + 1 ) * 100); | |
| 152 | + }); | |
| 153 | + } | |
| 154 | + | |
| 155 | + $(window).on('scroll', renderVisibleLazyCharts); | |
| 156 | + | |
| 157 | + // Run once on page load to render any lazy charts already in the viewport. | |
| 158 | + renderVisibleLazyCharts(); | |
| 159 | + | |
| 160 | + $('div.visualizer-front-container:not(.visualizer-lazy-render)').each(function(index, element){ | |
| 161 | + // Do not render charts that are intentionally hidden. | |
| 162 | + const style = window.getComputedStyle($(element).find('.visualizer-front')[0]); | |
| 163 | + if (style.display === 'none' || style.visibility === 'hidden') { | |
| 164 | + return; | |
| 165 | + } | |
| 166 | + | |
| 167 | + const id = $(element).find('.visualizer-front').addClass('viz-facade-loaded').attr('id'); | |
| 168 | + setTimeout(function(){ | |
| 169 | + // Add a short delay between each chart to avoid overloading the browser event loop. | |
| 143 | 170 | showChart(id); |
| 144 | - } | |
| 145 | - refreshEachCharts(); | |
| 171 | + }, ( index + 1 ) * 100); | |
| 146 | 172 | }); |
| 147 | 173 | |
| 148 | 174 | // interate through all charts that are to be lazy-loaded and observe each one. |
| 149 | 175 | $('div.visualizer-front.visualizer-lazy').each(function(index, element){ |