@taiga-ui/core
Version:
Core library for creating Angular components and applications using Taiga UI
124 lines • 19.7 kB
JavaScript
import { NgIf, NgTemplateOutlet } from '@angular/common';
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChild, DestroyRef, inject, Input, TemplateRef, ViewChild, } from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { tuiParentAnimation } from '@taiga-ui/core/animations';
import { TuiLoader } from '@taiga-ui/core/components/loader';
import { timer } from 'rxjs';
import { TuiExpandContent } from './expand-content.directive';
import * as i0 from "@angular/core";
const State = {
Idle: 0,
Loading: 1,
Prepared: 2,
Animated: 3,
};
const LOADER_HEIGHT = 48;
/**
* An event indicating that async data for expand has finished loading.
* Dispatch to finish loading states for {@link TuiExpandComponent}.
*/
export const TUI_EXPAND_LOADED = 'tui-expand-loaded';
/**
* @deprecated use {@link TuiExpand} from @taiga-ui/experimental
*/
class TuiExpandComponent {
constructor() {
this.cdr = inject(ChangeDetectorRef);
this.destroyRef = inject(DestroyRef);
this.state = State.Idle;
this.content = null;
this.expanded = null;
this.async = false;
}
set expandedSetter(expanded) {
if (this.expanded === null) {
this.expanded = expanded;
return;
}
if (this.state !== State.Idle) {
this.expanded = expanded;
this.state = State.Animated;
return;
}
this.expanded = expanded;
this.retrigger(this.async && expanded ? State.Loading : State.Animated);
}
get contentVisible() {
return this.expanded || this.state !== State.Idle;
}
get overflow() {
return this.state !== State.Idle;
}
get loading() {
return !!this.expanded && this.async && this.state === State.Loading;
}
get height() {
const { expanded, state, contentWrapper } = this;
if ((expanded && state === State.Prepared) ||
(!expanded && state === State.Animated)) {
return 0;
}
if (contentWrapper &&
((!expanded && state === State.Prepared) ||
(expanded && state === State.Animated))) {
return contentWrapper.nativeElement.offsetHeight;
}
if (contentWrapper && expanded && state === State.Loading) {
return Math.max(contentWrapper.nativeElement.offsetHeight, LOADER_HEIGHT);
}
return null;
}
onTransitionEnd({ propertyName, pseudoElement }) {
if (propertyName === 'opacity' &&
!pseudoElement &&
this.state === State.Animated) {
this.state = State.Idle;
}
}
onExpandLoaded(event) {
event.stopPropagation();
if (this.state === State.Loading) {
this.retrigger(State.Animated);
}
}
retrigger(state) {
this.state = State.Prepared;
timer(0)
.pipe(takeUntilDestroyed(this.destroyRef))
.subscribe(() => {
// We need delay to re-trigger CSS height transition from the correct number
if (this.state !== State.Prepared) {
return;
}
this.state = state;
this.cdr.markForCheck();
});
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiExpandComponent, deps: [], target: i0.ɵɵFactoryTarget.Component }); }
static { this.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "16.2.12", type: TuiExpandComponent, isStandalone: true, selector: "tui-expand", inputs: { async: "async", expandedSetter: ["expanded", "expandedSetter"] }, host: { listeners: { "transitionend.self": "onTransitionEnd($event)", "tui-expand-loaded": "onExpandLoaded($event)" }, properties: { "style.height.px": "height", "class._loading": "loading", "class._overflow": "overflow", "class._expanded": "expanded", "attr.aria-expanded": "expanded" } }, queries: [{ propertyName: "content", first: true, predicate: TuiExpandContent, descendants: true, read: TemplateRef }], viewQueries: [{ propertyName: "contentWrapper", first: true, predicate: ["wrapper"], descendants: true }], ngImport: i0, template: "<div\n #wrapper\n class=\"t-wrapper\"\n @tuiParentAnimation\n [@.disabled]=\"overflow\"\n>\n <ng-container *ngIf=\"contentVisible\">\n <ng-content />\n <tui-loader\n *ngIf=\"async; else content\"\n size=\"l\"\n [overlay]=\"true\"\n [showLoader]=\"loading\"\n >\n <ng-container [ngTemplateOutlet]=\"content\" />\n </tui-loader>\n </ng-container>\n</div>\n", styles: [":host{transition-property:opacity,height,visibility;transition-duration:var(--tui-duration, .3s);transition-timing-function:ease-in-out;display:block;opacity:0;transition-delay:1ms}:host._overflow{overflow:hidden}:host._expanded{opacity:1}:host._loading{opacity:.99}.t-wrapper:before,.t-wrapper:after{content:\"\";display:table}\n"], dependencies: [{ kind: "directive", type: NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "component", type: TuiLoader, selector: "tui-loader", inputs: ["size", "inheritColor", "overlay", "textContent", "showLoader"] }], animations: [tuiParentAnimation], changeDetection: i0.ChangeDetectionStrategy.OnPush }); }
}
export { TuiExpandComponent };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiExpandComponent, decorators: [{
type: Component,
args: [{ standalone: true, selector: 'tui-expand', imports: [NgIf, NgTemplateOutlet, TuiLoader], changeDetection: ChangeDetectionStrategy.OnPush, animations: [tuiParentAnimation], host: {
'[style.height.px]': 'height',
'[class._loading]': 'loading',
'[class._overflow]': 'overflow',
'[class._expanded]': 'expanded',
'[attr.aria-expanded]': 'expanded',
'(transitionend.self)': 'onTransitionEnd($event)',
[`(${TUI_EXPAND_LOADED})`]: 'onExpandLoaded($event)',
}, template: "<div\n #wrapper\n class=\"t-wrapper\"\n @tuiParentAnimation\n [@.disabled]=\"overflow\"\n>\n <ng-container *ngIf=\"contentVisible\">\n <ng-content />\n <tui-loader\n *ngIf=\"async; else content\"\n size=\"l\"\n [overlay]=\"true\"\n [showLoader]=\"loading\"\n >\n <ng-container [ngTemplateOutlet]=\"content\" />\n </tui-loader>\n </ng-container>\n</div>\n", styles: [":host{transition-property:opacity,height,visibility;transition-duration:var(--tui-duration, .3s);transition-timing-function:ease-in-out;display:block;opacity:0;transition-delay:1ms}:host._overflow{overflow:hidden}:host._expanded{opacity:1}:host._loading{opacity:.99}.t-wrapper:before,.t-wrapper:after{content:\"\";display:table}\n"] }]
}], propDecorators: { contentWrapper: [{
type: ViewChild,
args: ['wrapper']
}], content: [{
type: ContentChild,
args: [TuiExpandContent, { read: TemplateRef }]
}], async: [{
type: Input
}], expandedSetter: [{
type: Input,
args: ['expanded']
}] } });
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{NgIf, type NgIfContext, NgTemplateOutlet} from '@angular/common';\nimport {\n    ChangeDetectionStrategy,\n    ChangeDetectorRef,\n    Component,\n    ContentChild,\n    DestroyRef,\n    type ElementRef,\n    inject,\n    Input,\n    TemplateRef,\n    ViewChild,\n} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {type TuiValuesOf} from '@taiga-ui/cdk/types';\nimport {tuiParentAnimation} from '@taiga-ui/core/animations';\nimport {TuiLoader} from '@taiga-ui/core/components/loader';\nimport {timer} from 'rxjs';\n\nimport {TuiExpandContent} from './expand-content.directive';\n\nconst State = {\n    Idle: 0,\n    Loading: 1,\n    Prepared: 2,\n    Animated: 3,\n} as const;\n\nconst LOADER_HEIGHT = 48;\n\n/**\n * An event indicating that async data for expand has finished loading.\n * Dispatch to finish loading states for {@link TuiExpandComponent}.\n */\nexport const TUI_EXPAND_LOADED = 'tui-expand-loaded';\n\n/**\n * @deprecated use {@link TuiExpand} from @taiga-ui/experimental\n */\n@Component({\n    standalone: true,\n    selector: 'tui-expand',\n    imports: [NgIf, NgTemplateOutlet, TuiLoader],\n    templateUrl: './expand.template.html',\n    styleUrls: ['./expand.style.less'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    animations: [tuiParentAnimation],\n    host: {\n        '[style.height.px]': 'height',\n        '[class._loading]': 'loading',\n        '[class._overflow]': 'overflow',\n        '[class._expanded]': 'expanded',\n        '[attr.aria-expanded]': 'expanded',\n        '(transitionend.self)': 'onTransitionEnd($event)',\n        [`(${TUI_EXPAND_LOADED})`]: 'onExpandLoaded($event)',\n    },\n})\nexport class TuiExpandComponent {\n    @ViewChild('wrapper')\n    private readonly contentWrapper?: ElementRef<HTMLDivElement>;\n\n    private readonly cdr = inject(ChangeDetectorRef);\n    private readonly destroyRef = inject(DestroyRef);\n    private state: TuiValuesOf<typeof State> = State.Idle;\n\n    @ContentChild(TuiExpandContent, {read: TemplateRef})\n    protected content: TemplateRef<NgIfContext<boolean>> | null = null;\n\n    protected expanded: boolean | null = null;\n\n    @Input()\n    public async = false;\n\n    @Input('expanded')\n    public set expandedSetter(expanded: boolean | null) {\n        if (this.expanded === null) {\n            this.expanded = expanded;\n\n            return;\n        }\n\n        if (this.state !== State.Idle) {\n            this.expanded = expanded;\n            this.state = State.Animated;\n\n            return;\n        }\n\n        this.expanded = expanded;\n        this.retrigger(this.async && expanded ? State.Loading : State.Animated);\n    }\n\n    public get contentVisible(): boolean {\n        return this.expanded || this.state !== State.Idle;\n    }\n\n    protected get overflow(): boolean {\n        return this.state !== State.Idle;\n    }\n\n    protected get loading(): boolean {\n        return !!this.expanded && this.async && this.state === State.Loading;\n    }\n\n    protected get height(): number | null {\n        const {expanded, state, contentWrapper} = this;\n\n        if (\n            (expanded && state === State.Prepared) ||\n            (!expanded && state === State.Animated)\n        ) {\n            return 0;\n        }\n\n        if (\n            contentWrapper &&\n            ((!expanded && state === State.Prepared) ||\n                (expanded && state === State.Animated))\n        ) {\n            return contentWrapper.nativeElement.offsetHeight;\n        }\n\n        if (contentWrapper && expanded && state === State.Loading) {\n            return Math.max(contentWrapper.nativeElement.offsetHeight, LOADER_HEIGHT);\n        }\n\n        return null;\n    }\n\n    protected onTransitionEnd({propertyName, pseudoElement}: TransitionEvent): void {\n        if (\n            propertyName === 'opacity' &&\n            !pseudoElement &&\n            this.state === State.Animated\n        ) {\n            this.state = State.Idle;\n        }\n    }\n\n    protected onExpandLoaded(event: Event): void {\n        event.stopPropagation();\n\n        if (this.state === State.Loading) {\n            this.retrigger(State.Animated);\n        }\n    }\n\n    private retrigger(state: TuiValuesOf<typeof State>): void {\n        this.state = State.Prepared;\n\n        timer(0)\n            .pipe(takeUntilDestroyed(this.destroyRef))\n            .subscribe(() => {\n                // We need delay to re-trigger CSS height transition from the correct number\n                if (this.state !== State.Prepared) {\n                    return;\n                }\n\n                this.state = state;\n                this.cdr.markForCheck();\n            });\n    }\n}\n","<div\n    #wrapper\n    class=\"t-wrapper\"\n    @tuiParentAnimation\n    [@.disabled]=\"overflow\"\n>\n    <ng-container *ngIf=\"contentVisible\">\n        <ng-content />\n        <tui-loader\n            *ngIf=\"async; else content\"\n            size=\"l\"\n            [overlay]=\"true\"\n            [showLoader]=\"loading\"\n        >\n            <ng-container [ngTemplateOutlet]=\"content\" />\n        </tui-loader>\n    </ng-container>\n</div>\n"]}