@taiga-ui/kit
Version:
Taiga UI Angular main components kit
92 lines • 13.4 kB
JavaScript
import { DOCUMENT } from '@angular/common';
import { Directive, inject, Input, Renderer2 } from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { ResizeObserverService } from '@ng-web-apis/resize-observer';
import { svgNodeFilter } from '@taiga-ui/cdk/constants';
import { tuiCreateOptions } from '@taiga-ui/cdk/utils/di';
import { tuiInjectElement } from '@taiga-ui/cdk/utils/dom';
import { tuiPx } from '@taiga-ui/cdk/utils/miscellaneous';
import * as i0 from "@angular/core";
export const [TUI_HIGHLIGHT_OPTIONS, tuiHighlightOptionsProvider] = tuiCreateOptions({
highlightColor: 'var(--tui-service-selection-background)',
});
class TuiHighlight {
constructor() {
this.el = tuiInjectElement();
this.renderer = inject(Renderer2);
this.doc = inject(DOCUMENT);
this.highlight = this.setUpHighlight();
this.treeWalker = this.doc.createTreeWalker(this.el, NodeFilter.SHOW_TEXT, svgNodeFilter);
this.tuiHighlight = '';
this.tuiHighlightColor = inject(TUI_HIGHLIGHT_OPTIONS).highlightColor;
inject(ResizeObserverService, { self: true })
.pipe(takeUntilDestroyed())
.subscribe(() => this.updateStyles());
}
ngOnChanges() {
this.updateStyles();
}
get match() {
return this.indexOf(this.el.textContent) !== -1;
}
updateStyles() {
this.highlight.style.display = 'none';
if (!this.match) {
return;
}
this.treeWalker.currentNode = this.el;
do {
const index = this.indexOf(this.treeWalker.currentNode.nodeValue);
if (index === -1) {
continue;
}
const range = this.doc.createRange();
range.setStart(this.treeWalker.currentNode, index);
range.setEnd(this.treeWalker.currentNode, index + this.tuiHighlight.length);
const hostRect = this.el.getBoundingClientRect();
const { left, top, width, height } = range.getBoundingClientRect();
const { style } = this.highlight;
style.background = this.tuiHighlightColor;
style.left = tuiPx(left - hostRect.left);
style.top = tuiPx(top - hostRect.top);
style.width = tuiPx(width);
style.height = tuiPx(height);
style.display = 'block';
return;
} while (this.treeWalker.nextNode());
}
indexOf(source) {
return !source || !this.tuiHighlight
? -1
: source.toLowerCase().indexOf(this.tuiHighlight.toLowerCase());
}
setUpHighlight() {
const highlight = this.renderer.createElement('div');
const { style } = highlight;
style.background = this.tuiHighlightColor;
style.zIndex = '-1';
style.position = 'absolute';
this.renderer.appendChild(this.el, highlight);
return highlight;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiHighlight, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TuiHighlight, isStandalone: true, selector: "[tuiHighlight]", inputs: { tuiHighlight: "tuiHighlight", tuiHighlightColor: "tuiHighlightColor" }, host: { properties: { "style.position": "\"relative\"", "style.zIndex": "0" } }, providers: [ResizeObserverService], usesOnChanges: true, ngImport: i0 }); }
}
export { TuiHighlight };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiHighlight, decorators: [{
type: Directive,
args: [{
standalone: true,
selector: '[tuiHighlight]',
providers: [ResizeObserverService],
host: {
'[style.position]': '"relative"',
'[style.zIndex]': '0',
},
}]
}], ctorParameters: function () { return []; }, propDecorators: { tuiHighlight: [{
type: Input
}], tuiHighlightColor: [{
type: Input
}] } });
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{DOCUMENT} from '@angular/common';\nimport type {OnChanges} from '@angular/core';\nimport {Directive, inject, Input, Renderer2} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {ResizeObserverService} from '@ng-web-apis/resize-observer';\nimport {svgNodeFilter} from '@taiga-ui/cdk/constants';\nimport {tuiCreateOptions} from '@taiga-ui/cdk/utils/di';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {tuiPx} from '@taiga-ui/cdk/utils/miscellaneous';\n\nexport const [TUI_HIGHLIGHT_OPTIONS, tuiHighlightOptionsProvider] = tuiCreateOptions({\n    highlightColor: 'var(--tui-service-selection-background)',\n});\n\n@Directive({\n    standalone: true,\n    selector: '[tuiHighlight]',\n    providers: [ResizeObserverService],\n    host: {\n        '[style.position]': '\"relative\"',\n        '[style.zIndex]': '0',\n    },\n})\nexport class TuiHighlight implements OnChanges {\n    private readonly el = tuiInjectElement();\n    private readonly renderer = inject(Renderer2);\n    private readonly doc = inject(DOCUMENT);\n\n    private readonly highlight: HTMLElement = this.setUpHighlight();\n    private readonly treeWalker = this.doc.createTreeWalker(\n        this.el,\n        NodeFilter.SHOW_TEXT,\n        svgNodeFilter,\n    );\n\n    @Input()\n    public tuiHighlight = '';\n\n    @Input()\n    public tuiHighlightColor = inject(TUI_HIGHLIGHT_OPTIONS).highlightColor;\n\n    constructor() {\n        inject(ResizeObserverService, {self: true})\n            .pipe(takeUntilDestroyed())\n            .subscribe(() => this.updateStyles());\n    }\n\n    public ngOnChanges(): void {\n        this.updateStyles();\n    }\n\n    protected get match(): boolean {\n        return this.indexOf(this.el.textContent) !== -1;\n    }\n\n    private updateStyles(): void {\n        this.highlight.style.display = 'none';\n\n        if (!this.match) {\n            return;\n        }\n\n        this.treeWalker.currentNode = this.el;\n\n        do {\n            const index = this.indexOf(this.treeWalker.currentNode.nodeValue);\n\n            if (index === -1) {\n                continue;\n            }\n\n            const range = this.doc.createRange();\n\n            range.setStart(this.treeWalker.currentNode, index);\n            range.setEnd(this.treeWalker.currentNode, index + this.tuiHighlight.length);\n\n            const hostRect = this.el.getBoundingClientRect();\n            const {left, top, width, height} = range.getBoundingClientRect();\n            const {style} = this.highlight;\n\n            style.background = this.tuiHighlightColor;\n            style.left = tuiPx(left - hostRect.left);\n            style.top = tuiPx(top - hostRect.top);\n            style.width = tuiPx(width);\n            style.height = tuiPx(height);\n            style.display = 'block';\n\n            return;\n        } while (this.treeWalker.nextNode());\n    }\n\n    private indexOf(source: string | null): number {\n        return !source || !this.tuiHighlight\n            ? -1\n            : source.toLowerCase().indexOf(this.tuiHighlight.toLowerCase());\n    }\n\n    private setUpHighlight(): HTMLElement {\n        const highlight = this.renderer.createElement('div');\n        const {style} = highlight;\n\n        style.background = this.tuiHighlightColor;\n        style.zIndex = '-1';\n        style.position = 'absolute';\n        this.renderer.appendChild(this.el, highlight);\n\n        return highlight;\n    }\n}\n"]}