@nova-ui/bits
Version:
SolarWinds Nova Framework
160 lines • 22 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, Directive, ElementRef, HostBinding, Input, NgZone, } from "@angular/core";
import isFinite from "lodash/isFinite";
import { BehaviorSubject, Subject } from "rxjs";
import { takeUntil } from "rxjs/operators";
import { uuid } from "../../../functions/uuid";
import * as i0 from "@angular/core";
/**
* @ignore
* PROTOTYPE for DONUT ZOOMING
*
* This directive allows to zoom it's element to fit the dimensions of parent element
*/
export class ZoomContentDirective {
constructor(element, ngZone, cdRef) {
this.ngZone = ngZone;
this.cdRef = cdRef;
this.destroy$ = new Subject();
this.zoom = 1;
this.scalePadding = "0";
// Zoom inputs
this.zoomRatio = 0.9;
this.minZoomDifference = 0.1;
this.useZoom = true;
// Scale inputs
this.margin = 10;
this.minScale = 0.1;
this.uuid = uuid();
this.element = element.nativeElement;
if (!this.element.parentElement) {
// Note: is parentElement will be null resizeObserver will crash
throw new Error("Parent element is undefined");
}
this.parentElement = this.element.parentElement;
}
ngOnChanges(changes) {
if (changes.scaleOUT$ && this.scaleOUT$) {
this.scaleIN$.pipe(takeUntil(this.destroy$)).subscribe((data) => {
this.latestDataFromBroker = { ...data };
this.element.style.transform = `scale(${data.targetValue})`;
this.checkScaleBoundaries(data.targetValue);
});
}
}
ngAfterViewInit() {
const resizeObserver = new ResizeObserver(() => this.onResize());
this.ngZone.runOutsideAngular(() => {
resizeObserver.observe(this.element);
resizeObserver.observe(this.parentElement);
});
this.resizeObserver = resizeObserver;
}
ngOnDestroy() {
this.destroy$.next();
this.destroy$.complete();
if (this.resizeObserver) {
this.resizeObserver.unobserve(this.element);
this.resizeObserver.unobserve(this.parentElement);
}
}
onResize() {
this.elementRect = this.element?.getBoundingClientRect();
this.parentRect = this.parentElement?.getBoundingClientRect();
if (!this.elementRect || !this.parentRect) {
return;
}
this.useZoom ? this.applyZoom() : this.applyScale();
}
applyZoom() {
const widthZoom = this.parentRect.width / this.elementRect.width;
const heightZoom = this.parentRect.height / this.elementRect.height;
let zoom = Math.min(widthZoom, heightZoom) * this.zoomRatio;
if (this.minZoom) {
zoom = Math.max(zoom, this.minZoom);
}
if (this.maxZoom) {
zoom = Math.min(zoom, this.maxZoom);
}
if (Math.abs(zoom - this.zoom) > this.minZoomDifference) {
this.zoom = zoom;
this.cdRef.detectChanges(); // running inside an angular zone doesn't always work
}
}
applyScale() {
const parentSize = {
width: this.parentElement.offsetWidth - 2 * this.margin,
height: this.parentElement.offsetHeight - 2 * this.margin,
};
const scale = Math.min(parentSize.width / this.element.offsetWidth, parentSize.height / this.element.offsetHeight);
this.scaleOUT$
? this.scaleOUT$.next({
...this.latestDataFromBroker,
targetID: this.uuid,
targetValue: isFinite(scale) ? scale : 0,
})
: (this.element.style.transform = `scale(${scale})`);
this.checkScaleBoundaries(scale);
}
checkScaleBoundaries(scale) {
if (scale < this.minScale) {
this.element.style.transform = `scale(${this.minScale})`;
}
if (this.maxScale && scale > this.maxScale) {
this.element.style.transform = `scale(${this.maxScale})`;
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ZoomContentDirective, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "17.3.12", type: ZoomContentDirective, selector: "[nuiZoomContent]", inputs: { zoomRatio: "zoomRatio", minZoomDifference: "minZoomDifference", maxZoom: "maxZoom", minZoom: "minZoom", useZoom: "useZoom", margin: "margin", minScale: "minScale", maxScale: "maxScale", scaleIN$: "scaleIN$", scaleOUT$: "scaleOUT$" }, host: { properties: { "style.zoom": "this.zoom", "style.padding": "this.scalePadding" } }, usesOnChanges: true, ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ZoomContentDirective, decorators: [{
type: Directive,
args: [{
selector: "[nuiZoomContent]",
}]
}], ctorParameters: () => [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.ChangeDetectorRef }], propDecorators: { zoom: [{
type: HostBinding,
args: ["style.zoom"]
}], scalePadding: [{
type: HostBinding,
args: ["style.padding"]
}], zoomRatio: [{
type: Input
}], minZoomDifference: [{
type: Input
}], maxZoom: [{
type: Input
}], minZoom: [{
type: Input
}], useZoom: [{
type: Input
}], margin: [{
type: Input
}], minScale: [{
type: Input
}], maxScale: [{
type: Input
}], scaleIN$: [{
type: Input
}], scaleOUT$: [{
type: Input
}] } });
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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    AfterViewInit,\n    ChangeDetectorRef,\n    Directive,\n    ElementRef,\n    HostBinding,\n    Input,\n    NgZone,\n    OnChanges,\n    OnDestroy,\n    SimpleChanges,\n} from \"@angular/core\";\nimport isFinite from \"lodash/isFinite\";\nimport { BehaviorSubject, Subject } from \"rxjs\";\nimport { takeUntil } from \"rxjs/operators\";\n\nimport { uuid } from \"../../../functions/uuid\";\n\nexport interface IBrokerValue {\n    id: string;\n    targetID: string;\n    targetValue: number;\n}\n\n/**\n * @ignore\n * PROTOTYPE for DONUT ZOOMING\n *\n * This directive allows to zoom it's element to fit the dimensions of parent element\n */\n@Directive({\n    selector: \"[nuiZoomContent]\",\n})\nexport class ZoomContentDirective\n    implements OnDestroy, AfterViewInit, OnChanges\n{\n    private readonly destroy$ = new Subject<void>();\n\n    @HostBinding(\"style.zoom\")\n    public zoom = 1;\n\n    @HostBinding(\"style.padding\")\n    public scalePadding: string = \"0\";\n\n    // Zoom inputs\n    @Input() public zoomRatio = 0.9;\n    @Input() public minZoomDifference = 0.1;\n    @Input() public maxZoom: number;\n    @Input() public minZoom: number;\n    @Input() public useZoom: boolean = true;\n\n    // Scale inputs\n    @Input() public margin: number = 10;\n    @Input() public minScale: number = 0.1;\n    @Input() public maxScale: number;\n    @Input() public scaleIN$: BehaviorSubject<IBrokerValue>;\n    @Input() public scaleOUT$: BehaviorSubject<IBrokerValue>;\n\n    private readonly uuid = uuid();\n    private element: HTMLElement;\n    private parentElement: HTMLElement;\n    private elementRect: DOMRect;\n    private parentRect: DOMRect;\n    private latestDataFromBroker: IBrokerValue;\n\n    private resizeObserver: ResizeObserver;\n\n    constructor(\n        element: ElementRef,\n        private ngZone: NgZone,\n        private cdRef: ChangeDetectorRef\n    ) {\n        this.element = element.nativeElement;\n\n        if (!this.element.parentElement) {\n            // Note: is parentElement will be null resizeObserver will crash\n            throw new Error(\"Parent element is undefined\");\n        }\n\n        this.parentElement = this.element.parentElement;\n    }\n\n    public ngOnChanges(changes: SimpleChanges): void {\n        if (changes.scaleOUT$ && this.scaleOUT$) {\n            this.scaleIN$.pipe(takeUntil(this.destroy$)).subscribe((data) => {\n                this.latestDataFromBroker = { ...data };\n                this.element.style.transform = `scale(${data.targetValue})`;\n                this.checkScaleBoundaries(data.targetValue);\n            });\n        }\n    }\n\n    public ngAfterViewInit(): void {\n        const resizeObserver = new ResizeObserver(() => this.onResize());\n        this.ngZone.runOutsideAngular(() => {\n            resizeObserver.observe(this.element);\n            resizeObserver.observe(this.parentElement);\n        });\n\n        this.resizeObserver = resizeObserver;\n    }\n\n    public ngOnDestroy(): void {\n        this.destroy$.next();\n        this.destroy$.complete();\n\n        if (this.resizeObserver) {\n            this.resizeObserver.unobserve(this.element);\n            this.resizeObserver.unobserve(this.parentElement);\n        }\n    }\n\n    public onResize(): void {\n        this.elementRect = this.element?.getBoundingClientRect();\n        this.parentRect = this.parentElement?.getBoundingClientRect();\n\n        if (!this.elementRect || !this.parentRect) {\n            return;\n        }\n\n        this.useZoom ? this.applyZoom() : this.applyScale();\n    }\n\n    private applyZoom() {\n        const widthZoom = this.parentRect.width / this.elementRect.width;\n        const heightZoom = this.parentRect.height / this.elementRect.height;\n\n        let zoom = Math.min(widthZoom, heightZoom) * this.zoomRatio;\n        if (this.minZoom) {\n            zoom = Math.max(zoom, this.minZoom);\n        }\n        if (this.maxZoom) {\n            zoom = Math.min(zoom, this.maxZoom);\n        }\n\n        if (Math.abs(zoom - this.zoom) > this.minZoomDifference) {\n            this.zoom = zoom;\n            this.cdRef.detectChanges(); // running inside an angular zone doesn't always work\n        }\n    }\n\n    private applyScale() {\n        const parentSize = {\n            width: this.parentElement.offsetWidth - 2 * this.margin,\n            height: this.parentElement.offsetHeight - 2 * this.margin,\n        };\n\n        const scale = Math.min(\n            parentSize.width / this.element.offsetWidth,\n            parentSize.height / this.element.offsetHeight\n        );\n\n        this.scaleOUT$\n            ? this.scaleOUT$.next({\n                  ...this.latestDataFromBroker,\n                  targetID: this.uuid,\n                  targetValue: isFinite(scale) ? scale : 0,\n              })\n            : (this.element.style.transform = `scale(${scale})`);\n\n        this.checkScaleBoundaries(scale);\n    }\n\n    private checkScaleBoundaries(scale: number) {\n        if (scale < this.minScale) {\n            this.element.style.transform = `scale(${this.minScale})`;\n        }\n\n        if (this.maxScale && scale > this.maxScale) {\n            this.element.style.transform = `scale(${this.maxScale})`;\n        }\n    }\n}\n"]}