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package.dist.chartjs-plugin-zoom.min.js Maven / Gradle / Ivy

/*!
* chartjs-plugin-zoom v2.0.1
* undefined
 * (c) 2016-2023 chartjs-plugin-zoom Contributors
 * Released under the MIT License
 */
!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 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t=d(e);k(e,t);const n={};for(const o of Object.keys(e.scales)){const{min:e,max:a}=t.originalScaleLimits[o]||{min:{},max:{}};n[o]={min:e.scale,max:a.scale}}return n}function L(e,t){const{handlers:n}=d(e),o=n[t];o&&o.target&&(o.target.removeEventListener(t,o),delete n[t])}function E(e,t,n,o){const{handlers:a,options:i}=d(e),c=a[n];c&&c.target===t||(L(e,n),a[n]=t=>o(e,t,i),a[n].target=t,t.addEventListener(n,a[n]))}function F(e,t){const n=d(e);n.dragStart&&(n.dragging=!0,n.dragEnd=t,e.update("none"))}function H(e,t){const n=d(e);n.dragStart&&"Escape"===t.key&&(L(e,"keydown"),n.dragging=!1,n.dragStart=n.dragEnd=null,e.update("none"))}function Y(e,t,o){const{onZoomStart:a,onZoomRejected:i}=o;if(a){const o=n.getRelativePosition(t,e);if(!1===n.callback(a,[{chart:e,event:t,point:o}]))return n.callback(i,[{chart:e,event:t}]),!1}}function V(e,t){const o=d(e),{pan:a,zoom:s={}}=o.options;if(0!==t.button||c(i(a),t)||r(i(s.drag),t))return 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X(e,t){const{handlers:{onZoomComplete:o},options:{zoom:a}}=d(e);if(!function(e,t,o){if(r(i(o.wheel),t))n.callback(o.onZoomRejected,[{chart:e,event:t}]);else if(!1!==Y(e,t,o)&&(t.cancelable&&t.preventDefault(),void 0!==t.deltaY))return!0}(e,t,a))return;const c=t.target.getBoundingClientRect(),s=1+(t.deltaY>=0?-a.wheel.speed:a.wheel.speed);j(e,{x:s,y:s,focalPoint:{x:t.clientX-c.left,y:t.clientY-c.top}}),o&&o()}function q(e,t,o,a){o&&(d(e).handlers[t]=function(e,t){let n;return function(){return clearTimeout(n),n=setTimeout(e,t),t}}((()=>n.callback(o,[{chart:e}])),a))}function W(e,t){return function(o,a){const{pan:s,zoom:l={}}=t.options;if(!s||!s.enabled)return!1;const u=a&&a.srcEvent;return!u||(!(!t.panning&&"mouse"===a.pointerType&&(r(i(s),u)||c(i(l.drag),u)))||(n.callback(s.onPanRejected,[{chart:e,event:a}]),!1))}}function B(e,t,n){if(t.scale){const{center:o,pointers:a}=n,i=1/t.scale*n.scale,c=n.target.getBoundingClientRect(),r=function(e,t){const n=Math.abs(e.clientX-t.clientX),o=Math.abs(e.clientY-t.clientY),a=n/o;let i,c;return a>.3&&a<1.7?i=c=!0:n>o?i=!0:c=!0,{x:i,y:c}}(a[0],a[1]),l=t.options.zoom.mode;j(e,{x:r.x&&s(l,"x",e)?i:1,y:r.y&&s(l,"y",e)?i:1,focalPoint:{x:o.x-c.left,y:o.y-c.top}}),t.scale=n.scale}}function A(e,t,n){const o=t.delta;o&&(t.panning=!0,Z(e,{x:n.deltaX-o.x,y:n.deltaY-o.y},t.panScales),t.delta={x:n.deltaX,y:n.deltaY})}const I=new WeakMap;function U(e,t){const o=d(e),i=e.canvas,{pan:c,zoom:r}=t,s=new a.default.Manager(i);r&&r.pinch.enabled&&(s.add(new a.default.Pinch),s.on("pinchstart",(()=>function(e,t){t.options.zoom.pinch.enabled&&(t.scale=1)}(0,o))),s.on("pinch",(t=>B(e,o,t))),s.on("pinchend",(t=>function(e,t,o){t.scale&&(B(e,t,o),t.scale=null,n.callback(t.options.zoom.onZoomComplete,[{chart:e}]))}(e,o,t)))),c&&c.enabled&&(s.add(new a.default.Pan({threshold:c.threshold,enable:W(e,o)})),s.on("panstart",(t=>function(e,t,o){const{enabled:a,onPanStart:i,onPanRejected:c}=t.options.pan;if(!a)return;const r=o.target.getBoundingClientRect(),s={x:o.center.x-r.left,y:o.center.y-r.top};if(!1===n.callback(i,[{chart:e,event:o,point:s}]))return n.callback(c,[{chart:e,event:o}]);t.panScales=u(t.options.pan,s,e),t.delta={x:0,y:0},clearTimeout(t.panEndTimeout),A(e,t,o)}(e,o,t))),s.on("panmove",(t=>A(e,o,t))),s.on("panend",(()=>function(e,t){t.delta=null,t.panning&&(t.panEndTimeout=setTimeout((()=>t.panning=!1),500),n.callback(t.options.pan.onPanComplete,[{chart:e}]))}(e,o)))),I.set(e,s)}function G(e,t,n){const o=n.zoom.drag,{dragStart:a,dragEnd:i}=d(e);if(o.drawTime!==t||!i)return;const{left:c,top:r,width:s,height:l}=K(e,n.zoom.mode,a,i),u=e.ctx;u.save(),u.beginPath(),u.fillStyle=o.backgroundColor||"rgba(225,225,225,0.3)",u.fillRect(c,r,s,l),o.borderWidth>0&&(u.lineWidth=o.borderWidth,u.strokeStyle=o.borderColor||"rgba(225,225,225)",u.strokeRect(c,r,s,l)),u.restore()}var J={id:"zoom",version:"2.0.1",defaults:{pan:{enabled:!1,mode:"xy",threshold:10,modifierKey:null},zoom:{wheel:{enabled:!1,speed:.1,modifierKey:null},drag:{enabled:!1,drawTime:"beforeDatasetsDraw",modifierKey:null},pinch:{enabled:!1},mode:"xy"}},start:function(e,t,o){d(e).options=o,Object.prototype.hasOwnProperty.call(o.zoom,"enabled")&&console.warn("The option `zoom.enabled` is no longer supported. 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