import { NgModule, Component, ElementRef, Input, Output, EventEmitter, ChangeDetectionStrategy, ViewEncapsulation } from '@angular/core';
import { CommonModule } from '@angular/common';
import * as Chart from 'chart.js';
export class UIChart {
constructor(el) {
this.el = el;
this.plugins = [];
this.responsive = true;
this.onDataSelect = new EventEmitter();
this._options = {};
}
get data() {
return this._data;
}
set data(val) {
this._data = val;
this.reinit();
}
get options() {
return this._options;
}
set options(val) {
this._options = val;
this.reinit();
}
ngAfterViewInit() {
this.initChart();
this.initialized = true;
}
onCanvasClick(event) {
if (this.chart) {
let element = this.chart.getElementAtEvent(event);
let dataset = this.chart.getDatasetAtEvent(event);
if (element && element[0] && dataset) {
this.onDataSelect.emit({ originalEvent: event, element: element[0], dataset: dataset });
}
}
}
initChart() {
let opts = this.options || {};
opts.responsive = this.responsive;
// allows chart to resize in responsive mode
if (opts.responsive && (this.height || this.width)) {
opts.maintainAspectRatio = false;
}
this.chart = new Chart(this.el.nativeElement.children[0].children[0], {
type: this.type,
data: this.data,
options: this.options,
plugins: this.plugins
});
}
getCanvas() {
return this.el.nativeElement.children[0].children[0];
}
getBase64Image() {
return this.chart.toBase64Image();
}
generateLegend() {
if (this.chart) {
return this.chart.generateLegend();
}
}
refresh() {
if (this.chart) {
this.chart.update();
}
}
reinit() {
if (this.chart) {
this.chart.destroy();
this.initChart();
}
}
ngOnDestroy() {
if (this.chart) {
this.chart.destroy();
this.initialized = false;
this.chart = null;
}
}
}
UIChart.decorators = [
{ type: Component, args: [{
selector: 'p-chart',
template: `
`,
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None
},] }
];
UIChart.ctorParameters = () => [
{ type: ElementRef }
];
UIChart.propDecorators = {
type: [{ type: Input }],
plugins: [{ type: Input }],
width: [{ type: Input }],
height: [{ type: Input }],
responsive: [{ type: Input }],
onDataSelect: [{ type: Output }],
data: [{ type: Input }],
options: [{ type: Input }]
};
export class ChartModule {
}
ChartModule.decorators = [
{ type: NgModule, args: [{
imports: [CommonModule],
exports: [UIChart],
declarations: [UIChart]
},] }
];
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null : width\" [style.height]=\"responsive && !height ? null : height\">\n            <canvas [attr.width]=\"responsive && !width ? null : width\" [attr.height]=\"responsive && !height ? null : height\" (click)=\"onCanvasClick($event)\"></canvas>\n        </div>\n    `,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None\n})\nexport class UIChart implements AfterViewInit, OnDestroy {\n\n    @Input() type: string;\n\n    @Input() plugins: any[] = [];\n    \n    @Input() width: string;\n    \n    @Input() height: string;\n\n    @Input() responsive: boolean = true;\n    \n    @Output() onDataSelect: EventEmitter<any> = new EventEmitter();\n\n    initialized: boolean;\n    \n    _data: any;\n\n    _options: any = {};\n\n    chart: any;\n\n    constructor(public el: ElementRef) {}\n    \n    @Input() get data(): any {\n        return this._data;\n    }\n\n    set data(val:any) {\n        this._data = val;\n        this.reinit();\n    }\n\n    @Input() get options(): any {\n        return this._options;\n    }\n\n    set options(val:any) {\n        this._options = val;\n        this.reinit();\n    }\n\n    ngAfterViewInit() {\n        this.initChart();\n        this.initialized = true;\n    }\n\n    onCanvasClick(event) {\n        if (this.chart) {\n            let element = this.chart.getElementAtEvent(event);\n            let dataset = this.chart.getDatasetAtEvent(event);\n            if (element && element[0] && dataset) {\n                this.onDataSelect.emit({originalEvent: event, element: element[0], dataset: dataset});\n            }\n        }\n    }\n\n    initChart() {\n        let opts = this.options||{};\n        opts.responsive = this.responsive;\n\n        // allows chart to resize in responsive mode\n        if (opts.responsive&&(this.height||this.width)) {\n            opts.maintainAspectRatio = false;\n        }\n\n        this.chart = new Chart(this.el.nativeElement.children[0].children[0], {\n            type: this.type,\n            data: this.data,\n            options: this.options,\n            plugins: this.plugins\n        });\n    }\n    \n    getCanvas() {\n        return this.el.nativeElement.children[0].children[0];\n    }\n    \n    getBase64Image() {\n        return this.chart.toBase64Image();\n    }\n    \n    generateLegend() {\n        if (this.chart) {\n            return this.chart.generateLegend();\n        }\n    }\n    \n    refresh() {\n        if (this.chart) {\n            this.chart.update();\n        }\n    }\n    \n    reinit() {\n        if (this.chart) {\n            this.chart.destroy();\n            this.initChart();\n        }\n    }\n    \n    ngOnDestroy() {\n        if (this.chart) {\n            this.chart.destroy();\n            this.initialized = false;\n            this.chart = null;\n        }\n    }\n}\n\n@NgModule({\n    imports: [CommonModule],\n    exports: [UIChart],\n    declarations: [UIChart]\n})\nexport class ChartModule { }\n"]}