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Copy bidi module from angular material cdk so there's not a new dependency.
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src/demo-app/app/docs-layout/layoutRowWithDirection.demo.ts
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| import {Component} from '@angular/core'; | ||
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| @Component({ | ||
| moduleId: module.id, | ||
| selector: 'demo-layout-row-direction', | ||
| template: ` | ||
| <mat-card class="card-demo"> | ||
| <mat-card-title>Direction support for RTL</mat-card-title> | ||
| <mat-card-subtitle> | ||
| Simple row using layout gap and flex offset to demonstrate changes | ||
| in layout direction between rtl and ltr. | ||
| </mat-card-subtitle> | ||
| <mat-card-content fxLayout="column" fxLayoutGap="8px"> | ||
| <div> | ||
| <button (click)="toggleDirection()" mat-raised-button> | ||
| Toggle direction | ||
| </button> | ||
| </div> | ||
| <div class="containerX"> | ||
| <div fxLayout="row" class="colored box" fxLayoutGap="20px" | ||
| [dir]="direction" fxFlex> | ||
| <div fxFlexOffset="20px">item 1</div> | ||
| <div>item 2</div> | ||
| <div>item 3</div> | ||
| </div> | ||
| </div> | ||
| </mat-card-content> | ||
| <mat-card-footer> | ||
| <div class="hint"> | ||
| <div dir="{{ direction }}" fxLayoutGap="20px"> | ||
| </div> | ||
| </mat-card-footer> | ||
| </mat-card> | ||
| ` | ||
| }) | ||
| export class DemoLayoutRowDirection { | ||
| direction = 'ltr'; | ||
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| toggleDirection() { | ||
| this.direction = this.direction === 'ltr' ? 'rtl' : 'ltr'; | ||
| } | ||
| } |
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| /** | ||
| * @license | ||
| * Copyright Google LLC All Rights Reserved. | ||
| * | ||
| * Use of this source code is governed by an MIT-style license that can be | ||
| * found in the LICENSE file at https://angular.io/license | ||
| */ | ||
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| import {NgModule} from '@angular/core'; | ||
| import {DOCUMENT} from '@angular/common'; | ||
| import {Dir} from './dir'; | ||
| import {DIR_DOCUMENT, Directionality} from './directionality'; | ||
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| @NgModule({ | ||
| exports: [Dir], | ||
| declarations: [Dir], | ||
| providers: [ | ||
| {provide: DIR_DOCUMENT, useExisting: DOCUMENT}, | ||
| Directionality, | ||
| ] | ||
| }) | ||
| export class BidiModule { } |
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| The `bidi` package provides a common system for components to get and respond to change in the | ||
| application's LTR/RTL layout direction. This directory was copied straight from | ||
| https://github.com/angular/material2/blob/master/src/cdk/bidi/ | ||
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| ### Directionality | ||
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| When including the CDK's `BidiModule`, components can inject `Directionality` to get the current | ||
| text direction (RTL or LTR); | ||
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| #### Example | ||
| ```ts | ||
| @Component({ ... }) | ||
| export class MyWidget implements OnDestroy { | ||
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| /** Whether the widget is in RTL mode or not. */ | ||
| private isRtl: boolean; | ||
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| /** Subscription to the Directionality change EventEmitter. */ | ||
| private _dirChangeSubscription = Subscription.EMPTY; | ||
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| constructor(dir: Directionality) { | ||
| this.isRtl = dir.value === 'rtl'; | ||
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| _dirChangeSubscription = dir.change.subscribe(() => { | ||
| this.flipDirection(); | ||
| }); | ||
| } | ||
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| ngOnDestroy() { | ||
| this._dirChangeSubscription.unsubscribe(); | ||
| } | ||
| } | ||
| ``` | ||
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| ### The `Dir` directive | ||
| The `BidiModule` also includes a directive that matches any elements with a `dir` attribute. This | ||
| directive has the same API as Directionality and provides itself _as_ `Directionality`. By doing | ||
| this, any component that injects `Directionality` will get the closest ancestor layout direction | ||
| context. |
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