8 lines
2.1 KiB
JavaScript
8 lines
2.1 KiB
JavaScript
/*!
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* @license
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* chartjs-plugin-deferred v1.0.2
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* https://chartjs-plugin-deferred.netlify.app
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* (c) 2016-2021 chartjs-plugin-deferred contributors
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* Released under the MIT license
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*/
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!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(require("chart.js")):"function"==typeof define&&define.amd?define(["chart.js"],t):t(e.Chart)}(this,function(e){"use strict";var r=(e=e&&e.hasOwnProperty("default")?e.default:e).helpers,a="$chartjs_deferred",i="$deferred";function d(e,t){t?window.setTimeout(e,t):r.requestAnimFrame.call(window,e)}function o(e,t){var n=parseInt(e,10);return isNaN(n)?0:"string"==typeof e&&-1!==e.indexOf("%")?n/100*t:n}function f(e){var t=e[i].options,n=e.chart.canvas;if(n&&null!==n.offsetParent){e=n.getBoundingClientRect(),n=o(t.yOffset||0,e.height),t=o(t.xOffset||0,e.width);return 0<=e.right-t&&0<=e.bottom-n&&e.left+t<=window.innerWidth&&e.top+n<=window.innerHeight}}function l(e){var o=e.target[a];o.ticking||(o.ticking=!0,d(function(){for(var e,t=o.charts.slice(),n=t.length,r=0;r<n;++r)f(e=t[r])&&(s(e),e[i].appeared=!0,e.update());o.ticking=!1}))}function n(e){for(var t,n=e.chart.canvas.parentElement;n;)!function(e){if(e.nodeType!==Node.ELEMENT_NODE)return e.nodeType===Node.DOCUMENT_NODE;var t=r.getStyle(e,"overflow-x"),e=r.getStyle(e,"overflow-y");return"auto"===t||"scroll"===t||"auto"===e||"scroll"===e}(n)||(0===(t=(t=n[a]||(n[a]={})).charts||(t.charts=[])).length&&r.addEvent(n,"scroll",l),t.push(e),e[i].elements.push(n)),n=n.parentElement||n.ownerDocument}function s(n){n[i].elements.forEach(function(e){var t=e[a].charts;t.splice(t.indexOf(n),1),t.length||(r.removeEvent(e,"scroll",l),delete e[a])}),n[i].elements=[]}e.defaults.global.plugins.deferred={xOffset:0,yOffset:0,delay:0},e.plugins.register({id:"deferred",beforeInit:function(e,t){e[i]={options:t,appeared:!1,delayed:!1,loaded:!1,elements:[]},n(e)},beforeDatasetsUpdate:function(e,t){var n=e[i];if(!n.loaded){if(!n.appeared&&!f(e))return!1;if(n.appeared=!0,n.loaded=!0,s(e),0<t.delay)return n.delayed=!0,d(function(){e.ctx&&(n.delayed=!1,e.update())},t.delay),!1}if(n.delayed)return!1},destroy:function(e){s(e)}})}); |