@nova-ui/charts
Version:
Nova Charts is a library created to provide potential consumers with solutions for various data visualizations that conform with the Nova Design Language. It's designed to solve common patterns identified by UX designers, but also be very flexible so that
201 lines • 32.7 kB
JavaScript
// © 2022 SolarWinds Worldwide, LLC. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import { ChangeDetectorRef, Component, ElementRef, Input, QueryList, ViewChildren, } from "@angular/core";
import { forceCollide, forceSimulation, } from "d3";
import { select } from "d3";
import each from "lodash/each";
import isEqual from "lodash/isEqual";
import isNil from "lodash/isNil";
import { Subject } from "rxjs";
import { takeUntil } from "rxjs/operators";
import { ChartTooltipDirective } from "./chart-tooltip.directive";
import { ChartTooltipsPlugin } from "../core/plugins/tooltips/chart-tooltips-plugin";
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
import * as i2 from "./chart-tooltip.directive";
export class ChartTooltipsComponent {
changeDetector;
plugin;
template;
tooltips;
openTooltips = new Subject();
closeTooltips = new Subject();
unsubscribe$ = new Subject();
simulation;
// index we use for fast access of tooltip directives by seriesId
tooltipDirectivesIndex = {};
closePending = false;
isOpen = false;
openTimeout;
collisionTimeout;
closeTimeout;
constructor(changeDetector) {
this.changeDetector = changeDetector;
}
ngOnChanges(changes) {
if (!(changes["plugin"] && changes["plugin"].currentValue)) {
return;
}
this.unsubscribe$.next();
this.plugin.showSubject
.pipe(takeUntil(this.unsubscribe$))
.subscribe(() => this.handleOpen());
this.plugin.hideSubject
.pipe(takeUntil(this.unsubscribe$))
.subscribe(() => this.handleClose());
}
ngOnDestroy() {
this.unsubscribe$.next();
this.unsubscribe$.complete();
}
trackByFn(index, item) {
return item.value.seriesId;
}
handleOpen() {
this.changeDetector.detectChanges();
const currentTooltipDirectivesIndex = {};
this.tooltips.forEach((tooltip) => {
// this is how we identify which series does the tooltip belong to
const seriesId = tooltip.elementRef.nativeElement.getAttribute("series-id") ??
undefined;
if (!seriesId) {
throw new Error("SeriesId is not defined");
}
currentTooltipDirectivesIndex[seriesId] = tooltip;
});
const directivesChanged = !isEqual(currentTooltipDirectivesIndex, this.tooltipDirectivesIndex);
if (this.closePending || directivesChanged || !this.isOpen) {
clearTimeout(this.openTimeout);
this.openTimeout = window.setTimeout(() => {
this.openTooltips.next();
clearTimeout(this.collisionTimeout);
this.collisionTimeout = window.setTimeout(() => {
this.avoidTooltipCollisions();
this.isOpen = true;
});
});
}
else {
this.openTooltips.next();
this.avoidTooltipCollisions();
this.isOpen = true;
}
}
handleClose() {
if (this.simulation) {
this.simulation.stop();
}
this.closePending = true;
clearTimeout(this.closeTimeout);
this.closeTimeout = window.setTimeout(() => {
this.closeTooltips.next();
this.closePending = false;
this.isOpen = false;
});
}
/**
* Runs the D3 forceCollide based tooltip collision avoidance algorithm
*/
avoidTooltipCollisions() {
// extracted tooltip positions from tooltip directives
const tooltipPositions = {};
this.tooltips.forEach((tooltip) => {
const element = tooltip.getOverlayElement();
// this is how we identify which series does the tooltip belong to
const seriesId = tooltip.elementRef.nativeElement.getAttribute("series-id") ??
undefined;
if (!seriesId) {
throw new Error("SeriesId is not defined");
}
this.tooltipDirectivesIndex[seriesId] = tooltip;
tooltipPositions[seriesId] = {
x: element.offsetLeft,
y: element.offsetTop,
width: element.clientWidth,
height: element.clientHeight,
};
});
// if there was a previous simulation, then stop it before running a new one
if (this.simulation) {
this.simulation.stop();
}
this.simulation = this.startSimulation(this.tooltipDirectivesIndex, tooltipPositions);
}
/**
* Starts the force simulation to avoid tooltip overlap
*
* @param tooltipIndex
* @param tooltipPositions
*/
startSimulation(tooltipIndex, tooltipPositions) {
const nodes = Object.keys(tooltipPositions).map((seriesId) => {
const position = tooltipPositions[seriesId];
if (isNil(position.height) || isNil(position.width)) {
throw new Error("Position height or width are not defined");
}
const props = {
seriesId: seriesId,
x: position.x,
y: position.y,
radius: this.isVertical()
? position.height / 2
: position.width / 2,
};
if (this.isVertical()) {
props.fx = position.x;
}
else {
props.fy = position.y;
}
return props;
});
// TODO: these numbers are only based on playing with the library for the while, it's not fine tuned at all
const collisionForce = forceCollide((node) => node.radius)
.strength(0.5)
.iterations(20);
const simulation = forceSimulation(nodes)
.alphaDecay(0.3)
.force("collisionForce", collisionForce);
simulation.on("tick", () => {
each(nodes, (node) => {
const tooltip = tooltipIndex[node.seriesId];
select(tooltip.getOverlayElement()).style(this.isVertical() ? "top" : "left", (this.isVertical() ? node.y : node.x) + "px");
});
});
return simulation;
}
isVertical() {
return this.plugin.orientation === "right";
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ChartTooltipsComponent, deps: [{ token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "17.3.12", type: ChartTooltipsComponent, selector: "nui-chart-tooltips", inputs: { plugin: "plugin", template: "template" }, viewQueries: [{ propertyName: "tooltips", predicate: ChartTooltipDirective, descendants: true }], usesOnChanges: true, ngImport: i0, template: "<div *ngIf=\"plugin && plugin.dataPoints\">\n <div *ngFor=\"let item of plugin.dataPoints | keyvalue; trackBy: trackByFn\">\n <ng-template #tooltipTemplate>\n <ng-container\n *ngTemplateOutlet=\"template; context: { dataPoint: item.value }\"\n ></ng-container>\n </ng-template>\n\n <div\n nuiChartTooltip\n *ngIf=\"plugin.dataPointPositions[item.key]\"\n [attr.series-id]=\"item.key\"\n [template]=\"tooltipTemplate\"\n [openRemoteControl]=\"openTooltips\"\n [closeRemoteControl]=\"closeTooltips\"\n [positions]=\"plugin.dataPointPositions[item.key].overlayPositions\"\n class=\"chart-tooltips__popover\"\n [style.left.px]=\"plugin.dataPointPositions[item.key].x\"\n [style.top.px]=\"plugin.dataPointPositions[item.key].y\"\n [style.height.px]=\"plugin.dataPointPositions[item.key].height\"\n [style.width.px]=\"plugin.dataPointPositions[item.key].width\"\n ></div>\n </div>\n</div>\n", styles: [".chart-tooltips__popover{position:absolute;pointer-events:none}\n"], dependencies: [{ kind: "directive", type: i1.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }, { kind: "directive", type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "directive", type: i2.ChartTooltipDirective, selector: "[nuiChartTooltip]", inputs: ["template", "openRemoteControl", "closeRemoteControl", "positions"] }, { kind: "pipe", type: i1.KeyValuePipe, name: "keyvalue" }] });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ChartTooltipsComponent, decorators: [{
type: Component,
args: [{ selector: "nui-chart-tooltips", template: "<div *ngIf=\"plugin && plugin.dataPoints\">\n <div *ngFor=\"let item of plugin.dataPoints | keyvalue; trackBy: trackByFn\">\n <ng-template #tooltipTemplate>\n <ng-container\n *ngTemplateOutlet=\"template; context: { dataPoint: item.value }\"\n ></ng-container>\n </ng-template>\n\n <div\n nuiChartTooltip\n *ngIf=\"plugin.dataPointPositions[item.key]\"\n [attr.series-id]=\"item.key\"\n [template]=\"tooltipTemplate\"\n [openRemoteControl]=\"openTooltips\"\n [closeRemoteControl]=\"closeTooltips\"\n [positions]=\"plugin.dataPointPositions[item.key].overlayPositions\"\n class=\"chart-tooltips__popover\"\n [style.left.px]=\"plugin.dataPointPositions[item.key].x\"\n [style.top.px]=\"plugin.dataPointPositions[item.key].y\"\n [style.height.px]=\"plugin.dataPointPositions[item.key].height\"\n [style.width.px]=\"plugin.dataPointPositions[item.key].width\"\n ></div>\n </div>\n</div>\n", styles: [".chart-tooltips__popover{position:absolute;pointer-events:none}\n"] }]
}], ctorParameters: () => [{ type: i0.ChangeDetectorRef }], propDecorators: { plugin: [{
type: Input
}], template: [{
type: Input
}], tooltips: [{
type: ViewChildren,
args: [ChartTooltipDirective]
}] } });
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© 2022 SolarWinds Worldwide, LLC. All rights reserved.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n//  of this software and associated documentation files (the \"Software\"), to\n//  deal in the Software without restriction, including without limitation the\n//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n//  sell copies of the Software, and to permit persons to whom the Software is\n//  furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n//  all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n//  THE SOFTWARE.\n\nimport {\n    ChangeDetectorRef,\n    Component,\n    ElementRef,\n    Input,\n    OnChanges,\n    OnDestroy,\n    QueryList,\n    SimpleChanges,\n    ViewChildren,\n} from \"@angular/core\";\nimport {\n    forceCollide,\n    forceSimulation,\n    Simulation,\n    SimulationNodeDatum,\n} from \"d3\";\nimport { select } from \"d3\";\nimport each from \"lodash/each\";\nimport isEqual from \"lodash/isEqual\";\nimport isNil from \"lodash/isNil\";\nimport { Subject } from \"rxjs\";\nimport { takeUntil } from \"rxjs/operators\";\n\nimport { ChartTooltipDirective } from \"./chart-tooltip.directive\";\nimport { IPosition } from \"../core/common/types\";\nimport { ChartTooltipsPlugin } from \"../core/plugins/tooltips/chart-tooltips-plugin\";\n\ninterface ITooltipNode extends SimulationNodeDatum {\n    seriesId: string;\n    radius: number;\n}\n\n@Component({\n    selector: \"nui-chart-tooltips\",\n    templateUrl: \"./chart-tooltips.component.html\",\n    styleUrls: [\"./chart-tooltips.component.less\"],\n})\nexport class ChartTooltipsComponent implements OnChanges, OnDestroy {\n    @Input() plugin: ChartTooltipsPlugin;\n\n    @Input() template: ElementRef;\n\n    @ViewChildren(ChartTooltipDirective)\n    tooltips: QueryList<ChartTooltipDirective>;\n\n    public openTooltips = new Subject<void>();\n    public closeTooltips = new Subject<void>();\n\n    private unsubscribe$ = new Subject<void>();\n    private simulation: Simulation<ITooltipNode, undefined>;\n    // index we use for fast access of tooltip directives by seriesId\n    private tooltipDirectivesIndex: {\n        [seriesId: string]: ChartTooltipDirective;\n    } = {};\n    private closePending = false;\n    private isOpen = false;\n    private openTimeout: number;\n    private collisionTimeout: number;\n    private closeTimeout: number;\n\n    constructor(private changeDetector: ChangeDetectorRef) {}\n\n    public ngOnChanges(changes: SimpleChanges): void {\n        if (!(changes[\"plugin\"] && changes[\"plugin\"].currentValue)) {\n            return;\n        }\n\n        this.unsubscribe$.next();\n\n        this.plugin.showSubject\n            .pipe(takeUntil(this.unsubscribe$))\n            .subscribe(() => this.handleOpen());\n        this.plugin.hideSubject\n            .pipe(takeUntil(this.unsubscribe$))\n            .subscribe(() => this.handleClose());\n    }\n\n    public ngOnDestroy(): void {\n        this.unsubscribe$.next();\n        this.unsubscribe$.complete();\n    }\n\n    public trackByFn(index: number, item: any): string | undefined {\n        return item.value.seriesId;\n    }\n\n    private handleOpen() {\n        this.changeDetector.detectChanges();\n\n        const currentTooltipDirectivesIndex: {\n            [seriesId: string]: ChartTooltipDirective;\n        } = {};\n        this.tooltips.forEach((tooltip) => {\n            // this is how we identify which series does the tooltip belong to\n            const seriesId: string | undefined =\n                tooltip.elementRef.nativeElement.getAttribute(\"series-id\") ??\n                undefined;\n\n            if (!seriesId) {\n                throw new Error(\"SeriesId is not defined\");\n            }\n\n            currentTooltipDirectivesIndex[seriesId] = tooltip;\n        });\n\n        const directivesChanged = !isEqual(\n            currentTooltipDirectivesIndex,\n            this.tooltipDirectivesIndex\n        );\n        if (this.closePending || directivesChanged || !this.isOpen) {\n            clearTimeout(this.openTimeout);\n\n            this.openTimeout = window.setTimeout(() => {\n                this.openTooltips.next();\n                clearTimeout(this.collisionTimeout);\n\n                this.collisionTimeout = window.setTimeout(() => {\n                    this.avoidTooltipCollisions();\n                    this.isOpen = true;\n                });\n            });\n        } else {\n            this.openTooltips.next();\n            this.avoidTooltipCollisions();\n            this.isOpen = true;\n        }\n    }\n\n    private handleClose() {\n        if (this.simulation) {\n            this.simulation.stop();\n        }\n\n        this.closePending = true;\n        clearTimeout(this.closeTimeout);\n\n        this.closeTimeout = window.setTimeout(() => {\n            this.closeTooltips.next();\n            this.closePending = false;\n            this.isOpen = false;\n        });\n    }\n\n    /**\n     * Runs the D3 forceCollide based tooltip collision avoidance algorithm\n     */\n    private avoidTooltipCollisions() {\n        // extracted tooltip positions from tooltip directives\n        const tooltipPositions: { [seriesId: string]: IPosition } = {};\n\n        this.tooltips.forEach((tooltip) => {\n            const element = tooltip.getOverlayElement();\n\n            // this is how we identify which series does the tooltip belong to\n            const seriesId: string | undefined =\n                tooltip.elementRef.nativeElement.getAttribute(\"series-id\") ??\n                undefined;\n\n            if (!seriesId) {\n                throw new Error(\"SeriesId is not defined\");\n            }\n\n            this.tooltipDirectivesIndex[seriesId] = tooltip;\n\n            tooltipPositions[seriesId] = {\n                x: element.offsetLeft,\n                y: element.offsetTop,\n                width: element.clientWidth,\n                height: element.clientHeight,\n            };\n        });\n\n        // if there was a previous simulation, then stop it before running a new one\n        if (this.simulation) {\n            this.simulation.stop();\n        }\n\n        this.simulation = this.startSimulation(\n            this.tooltipDirectivesIndex,\n            tooltipPositions\n        );\n    }\n\n    /**\n     * Starts the force simulation to avoid tooltip overlap\n     *\n     * @param tooltipIndex\n     * @param tooltipPositions\n     */\n    private startSimulation(\n        tooltipIndex: { [p: string]: ChartTooltipDirective },\n        tooltipPositions: { [seriesId: string]: IPosition }\n    ) {\n        const nodes = Object.keys(tooltipPositions).map((seriesId) => {\n            const position = tooltipPositions[seriesId];\n\n            if (isNil(position.height) || isNil(position.width)) {\n                throw new Error(\"Position height or width are not defined\");\n            }\n\n            const props: any = {\n                seriesId: seriesId,\n                x: position.x,\n                y: position.y,\n                radius: this.isVertical()\n                    ? position.height / 2\n                    : position.width / 2,\n            };\n            if (this.isVertical()) {\n                props.fx = position.x;\n            } else {\n                props.fy = position.y;\n            }\n            return props;\n        });\n\n        // TODO: these numbers are only based on playing with the library for the while, it's not fine tuned at all\n        const collisionForce = forceCollide((node: any) => node.radius)\n            .strength(0.5)\n            .iterations(20);\n\n        const simulation = forceSimulation(nodes)\n            .alphaDecay(0.3)\n            .force(\"collisionForce\", collisionForce);\n\n        simulation.on(\"tick\", () => {\n            each(nodes, (node: ITooltipNode) => {\n                const tooltip = tooltipIndex[node.seriesId];\n\n                select(tooltip.getOverlayElement()).style(\n                    this.isVertical() ? \"top\" : \"left\",\n                    (this.isVertical() ? node.y : node.x) + \"px\"\n                );\n            });\n        });\n\n        return simulation;\n    }\n\n    private isVertical() {\n        return this.plugin.orientation === \"right\";\n    }\n}\n","<div *ngIf=\"plugin && plugin.dataPoints\">\n    <div *ngFor=\"let item of plugin.dataPoints | keyvalue; trackBy: trackByFn\">\n        <ng-template #tooltipTemplate>\n            <ng-container\n                *ngTemplateOutlet=\"template; context: { dataPoint: item.value }\"\n            ></ng-container>\n        </ng-template>\n\n        <div\n            nuiChartTooltip\n            *ngIf=\"plugin.dataPointPositions[item.key]\"\n            [attr.series-id]=\"item.key\"\n            [template]=\"tooltipTemplate\"\n            [openRemoteControl]=\"openTooltips\"\n            [closeRemoteControl]=\"closeTooltips\"\n            [positions]=\"plugin.dataPointPositions[item.key].overlayPositions\"\n            class=\"chart-tooltips__popover\"\n            [style.left.px]=\"plugin.dataPointPositions[item.key].x\"\n            [style.top.px]=\"plugin.dataPointPositions[item.key].y\"\n            [style.height.px]=\"plugin.dataPointPositions[item.key].height\"\n            [style.width.px]=\"plugin.dataPointPositions[item.key].width\"\n        ></div>\n    </div>\n</div>\n"]}