9 lines
13 KiB
JavaScript
9 lines
13 KiB
JavaScript
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/*!
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* chartjs-plugin-zoom v2.0.1
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* undefined
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* (c) 2016-2023 chartjs-plugin-zoom 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?module.exports=t(require("chart.js"),require("hammerjs"),require("chart.js/helpers")):"function"==typeof define&&define.amd?define(["chart.js","hammerjs","chart.js/helpers"],t):(e="undefined"!=typeof globalThis?globalThis:e||self).ChartZoom=t(e.Chart,e.Hammer,e.Chart.helpers)}(this,(function(e,t,n){"use strict";function o(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}var a=o(t);const i=e=>e&&e.enabled&&e.modifierKey,c=(e,t)=>e&&t[e+"Key"],r=(e,t)=>e&&!t[e+"Key"];function s(e,t,n){return void 0===e||("string"==typeof e?-1!==e.indexOf(t):"function"==typeof e&&-1!==e({chart:n}).indexOf(t))}function l(e,t){return"function"==typeof e&&(e=e({chart:t})),"string"==typeof e?{x:-1!==e.indexOf("x"),y:-1!==e.indexOf("y")}:{x:!1,y:!1}}function u(e,t,o){const{mode:a="xy",scaleMode:i,overScaleMode:c}=e||{},r=function({x:e,y:t},n){const o=n.scales,a=Object.keys(o);for(let n=0;n<a.length;n++){const i=o[a[n]];if(t>=i.top&&t<=i.bottom&&e>=i.left&&e<=i.right)return i}return null}(t,o),s=l(a,o),u=l(i,o);if(c){const e=l(c,o);for(const t of["x","y"])e[t]&&(u[t]=s[t],s[t]=!1)}if(r&&u[r.axis])return[r];const m=[];return n.each(o.scales,(function(e){s[e.axis]&&m.push(e)})),m}const m=new WeakMap;function d(e){let t=m.get(e);return t||(t={originalScaleLimits:{},updatedScaleLimits:{},handlers:{},panDelta:{}},m.set(e,t)),t}function f(e,t,n){const o=e.max-e.min,a=o*(t-1),i=e.isHorizontal()?n.x:n.y,c=Math.max(0,Math.min(1,(e.getValueForPixel(i)-e.min)/o||0));return{min:a*c,max:a*(1-c)}}function p(e,t,o,a,i){let c=o[a];if("original"===c){const o=e.originalScaleLimits[t.id][a];c=n.valueOrDefault(o.options,o.scale)}return n.valueOrDefault(c,i)}function h(e,{min:t,max:n},o,a=!1){const i=d(e.chart),{id:c,axis:r,options:s}=e,l=o&&(o[c]||o[r])||{},{minRange:u=0}=l,m=p(i,e,l,"min",-1/0),f=p(i,e,l,"max",1/0),h=a?Math.max(n-t,u):e.max-e.min,x=(h-n+t)/2;return n+=x,(t-=x)<m?(t=m,n=Math.min(m+h,f)):n>f&&(n=f,t=Math.max(f-h,m)),s.min=t,s.max=n,i.updatedScaleLimits[e.id]={min:t,max:n},e.parse(t)!==e.min||e.parse(n)!==e.max}const x=e=>0===e||isNaN(e)?0:e<0?Math.min(Math.round(e),-1):Math.max(Math.round(e),1);const g={second:500,minute:3e4,hour:18e5,day:432e5,week:3024e5,month:1296e6,quarter:5184e6,year:157248e5};function y(e,t,n,o=!1){const{min:a,max:i,options:c}=e,r=c.time&&c.time.round,s=g[r]||0,l=e.getValueForPixel(e.getPixelForValue(a+s)-t),u=e.getValueForPixel(e.getPixelForValue(i+s)-t),{min:m=-1/0,max:d=1/0}=o&&n&&n[e.axis]||{};return!!(isNaN(l)||isNaN(u)||l<m||u>d)||h(e,{min:l,max:u},n,o)}function b(e,t,n){return y(e,t,n,!0)}const v={category:function(e,t,n,o){const a=f(e,t,n);return e.min===e.max&&t<1&&function(e){const t=e.getLabels().length-1;e.min>0&&(e.min-=1),e.max<t&&(e.max+=1)}(e),h(e,{min:e.min+x(a.min),max:e.max-x(a.max)},o,!0)},default:function(e,t,n,o){const a=f(e,t,n);return h(e,{min:e.min+a.min,max:e.max-a.max},o,!0)}},w={default:function(e,t,n,o){h(e,function(e,t,n){const o=e.getValueForPixel(t),a=e.getValueForPixel(n);return{min:Math.min(o,a),max:Math.max(o,a)}}(e,t,n),o,!0)}},z={category:function(e,t,n){const o=e.getLabels().length-1;let{min:a,max:i}=e;const c=Math.max(i-a,1),r=Math.round(function(e){return e.isHorizontal()?e.width:e.height}(e)/Math.max(c,10)),s=Math.round(Math.abs(t/r));let l;return t<-r?(i=Math.min(i+s,o),a=1===c?i:i-c,l=i===o):t>r&&(a=Math.max(0,a-s),i=1===c?a:a+c,l=0===a),h(e,{min:a,max:i},n)||l},default:y,logarithmic:b,timeseries:b};function M(e,t){n.each(e,((n,o)=>{t[o]||delete e[o]}))}function k(e,t){const{scales:o}=e,{originalScaleLimits:a,updatedScaleLimits:i}=t;return n.each(o,(function(e){(function(e,t,n){const{id:o,options:{min:a,max:i}}=e;if(!t[o]||!n[o])return!0;const c=n[o];return c.min!==a||c.max!==i})(e,a,i)&&(a[e.id]={min:{scale:e.min,options:e.options.min},max:{scale:e.max,options:e.options.max}})})),M(a,o),M(i,o),a}function S(e,t,o,a){const i=v[e.type]||v.default;n.callback(i,[e,t,o,a])}function P(e,t,o,a,i){const c=w[e.type]||w.default;n.callback(c,[e,t,o,a,i])}function D(e){const t=e.chartArea;return{x:(t.left+t.right)/2,y
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