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Angular components for Clarity

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/* * Copyright (c) 2016-2025 Broadcom. All Rights Reserved. * The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries. * This software is released under MIT license. * The full license information can be found in LICENSE in the root directory of this project. */ import { Injectable, Optional, Renderer2, SkipSelf } from '@angular/core'; import { isObservable, of } from 'rxjs'; import { ArrowKeyDirection } from './arrow-key-direction.enum'; import * as i0 from "@angular/core"; export class FocusService { constructor(renderer) { this.renderer = renderer; this._unlistenFuncs = []; } get current() { return this._current; } reset(first) { this._current = first; } listenToArrowKeys(el) { // The following listeners return false when there was an action to take for the key pressed, // in order to prevent the default behavior of that key. this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowup', () => !this.move(ArrowKeyDirection.UP))); this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowdown', () => !this.move(ArrowKeyDirection.DOWN))); this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowleft', () => !this.move(ArrowKeyDirection.LEFT))); this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowright', () => !this.move(ArrowKeyDirection.RIGHT))); } registerContainer(el, tabIndex = '0') { this.renderer.setAttribute(el, 'tabindex', tabIndex); this.listenToArrowKeys(el); // The following listeners return false when there was an action to take for the key pressed, // in order to prevent the default behavior of that key. this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.space', () => !this.activateCurrent())); this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.enter', () => !this.activateCurrent())); } moveTo(item) { /** * Make sure that item is not undefined, * This is safety net in the case that someone sometime decide to * call this method without having FocusableItem. */ if (item === undefined) { return; } if (this.current) { this.current.blur(); } item.focus(); this._current = item; } move(direction) { let moved = false; if (this.current) { const next = this.current[direction]; if (next) { // Turning the value into an Observable isn't great, but it's the fastest way to avoid code duplication. // If performance ever matters for this, we can refactor using additional private methods. const nextObs = isObservable(next) ? next : of(next); nextObs.subscribe(item => { if (item) { this.moveTo(item); moved = true; } }); } } return moved; } activateCurrent() { if (this.current && this.current.activate) { this.current.activate(); return true; } return false; } detachListeners() { this._unlistenFuncs.forEach(unlisten => unlisten()); } } FocusService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: FocusService, deps: [{ token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Injectable }); FocusService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: FocusService }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: FocusService, decorators: [{ type: Injectable }], ctorParameters: function () { return [{ type: i0.Renderer2 }]; } }); export function clrFocusServiceFactory(existing, renderer) { return existing || new FocusService(renderer); } export const FOCUS_SERVICE_PROVIDER = { provide: FocusService, useFactory: clrFocusServiceFactory, deps: [[new Optional(), new SkipSelf(), FocusService], Renderer2], }; //# sourceMappingURL=data:application/json;base64,{"version":3,"file":"focus.service.js","sourceRoot":"","sources":["../../../../../projects/angular/src/utils/focus/focus.service.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;AAEH,OAAO,EAAE,UAAU,EAAE,QAAQ,EAAE,SAAS,EAAE,QAAQ,EAAE,MAAM,eAAe,CAAC;AAC1E,OAAO,EAAE,YAAY,EAAE,EAAE,EAAE,MAAM,MAAM,CAAC;AAExC,OAAO,EAAE,iBAAiB,EAAE,MAAM,4BAA4B,CAAC;;AAI/D,MAAM,OAAO,YAAY;IAIvB,YAAoB,QAAmB;QAAnB,aAAQ,GAAR,QAAQ,CAAW;QAF/B,mBAAc,GAAmB,EAAE,CAAC;IAEF,CAAC;IAE3C,IAAI,OAAO;QACT,OAAO,IAAI,CAAC,QAAQ,CAAC;IACvB,CAAC;IAED,KAAK,CAAC,KAAoB;QACxB,IAAI,CAAC,QAAQ,GAAG,KAAK,CAAC;IACxB,CAAC;IAED,iBAAiB,CAAC,EAAe;QAC/B,6FAA6F;QAC7F,wDAAwD;QACxD,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,iBAAiB,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,iBAAiB,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC;QAC9G,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,mBAAmB,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,iBAAiB,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;QAClH,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,mBAAmB,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,iBAAiB,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;QAClH,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,oBAAoB,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,iBAAiB,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;IACtH,CAAC;IAED,iBAAiB,CAAC,EAAe,EAAE,QAAQ,GAAG,GAAG;QAC/C,IAAI,CAAC,QAAQ,CAAC,YAAY,CAAC,EAAE,EAAE,UAAU,EAAE,QAAQ,CAAC,CAAC;QACrD,IAAI,CAAC,iBAAiB,CAAC,EAAE,CAAC,CAAC;QAC3B,6FAA6F;QAC7F,wDAAwD;QACxD,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,eAAe,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,eAAe,EAAE,CAAC,CAAC,CAAC;QACnG,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,EAAE,eAAe,EAAE,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,eAAe,EAAE,CAAC,CAAC,CAAC;IACrG,CAAC;IAED,MAAM,CAAC,IAAmB;QACxB;;;;WAIG;QACH,IAAI,IAAI,KAAK,SAAS,EAAE;YACtB,OAAO;SACR;QAED,IAAI,IAAI,CAAC,OAAO,EAAE;YAChB,IAAI,CAAC,OAAO,CAAC,IAAI,EAAE,CAAC;SACrB;QACD,IAAI,CAAC,KAAK,EAAE,CAAC;QACb,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC;IACvB,CAAC;IAED,IAAI,CAAC,SAA4B;QAC/B,IAAI,KAAK,GAAG,KAAK,CAAC;QAClB,IAAI,IAAI,CAAC,OAAO,EAAE;YAChB,MAAM,IAAI,GAAG,IAAI,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC;YACrC,IAAI,IAAI,EAAE;gBACR,wGAAwG;gBACxG,0FAA0F;gBAC1F,MAAM,OAAO,GAAG,YAAY,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC;gBACrD,OAAO,CAAC,SAAS,CAAC,IAAI,CAAC,EAAE;oBACvB,IAAI,IAAI,EAAE;wBACR,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC;wBAClB,KAAK,GAAG,IAAI,CAAC;qBACd;gBACH,CAAC,CAAC,CAAC;aACJ;SACF;QACD,OAAO,KAAK,CAAC;IACf,CAAC;IAED,eAAe;QACb,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,QAAQ,EAAE;YACzC,IAAI,CAAC,OAAO,CAAC,QAAQ,EAAE,CAAC;YACxB,OAAO,IAAI,CAAC;SACb;QACD,OAAO,KAAK,CAAC;IACf,CAAC;IAED,eAAe;QACb,IAAI,CAAC,cAAc,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE,CAAC,QAAQ,EAAE,CAAC,CAAC;IACtD,CAAC;;yGA9EU,YAAY;6GAAZ,YAAY;2FAAZ,YAAY;kBADxB,UAAU;;AAkFX,MAAM,UAAU,sBAAsB,CAAC,QAAsB,EAAE,QAAmB;IAChF,OAAO,QAAQ,IAAI,IAAI,YAAY,CAAC,QAAQ,CAAC,CAAC;AAChD,CAAC;AAED,MAAM,CAAC,MAAM,sBAAsB,GAAG;IACpC,OAAO,EAAE,YAAY;IACrB,UAAU,EAAE,sBAAsB;IAClC,IAAI,EAAE,CAAC,CAAC,IAAI,QAAQ,EAAE,EAAE,IAAI,QAAQ,EAAE,EAAE,YAAY,CAAC,EAAE,SAAS,CAAC;CAClE,CAAC","sourcesContent":["/*\n * Copyright (c) 2016-2025 Broadcom. All Rights Reserved.\n * The term \"Broadcom\" refers to Broadcom Inc. and/or its subsidiaries.\n * This software is released under MIT license.\n * The full license information can be found in LICENSE in the root directory of this project.\n */\n\nimport { Injectable, Optional, Renderer2, SkipSelf } from '@angular/core';\nimport { isObservable, of } from 'rxjs';\n\nimport { ArrowKeyDirection } from './arrow-key-direction.enum';\nimport { FocusableItem } from './focusable-item/focusable-item';\n\n@Injectable()\nexport class FocusService {\n  private _current: FocusableItem;\n  private _unlistenFuncs: (() => void)[] = [];\n\n  constructor(private renderer: Renderer2) {}\n\n  get current() {\n    return this._current;\n  }\n\n  reset(first: FocusableItem) {\n    this._current = first;\n  }\n\n  listenToArrowKeys(el: HTMLElement) {\n    // The following listeners return false when there was an action to take for the key pressed,\n    // in order to prevent the default behavior of that key.\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowup', () => !this.move(ArrowKeyDirection.UP)));\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowdown', () => !this.move(ArrowKeyDirection.DOWN)));\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowleft', () => !this.move(ArrowKeyDirection.LEFT)));\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.arrowright', () => !this.move(ArrowKeyDirection.RIGHT)));\n  }\n\n  registerContainer(el: HTMLElement, tabIndex = '0') {\n    this.renderer.setAttribute(el, 'tabindex', tabIndex);\n    this.listenToArrowKeys(el);\n    // The following listeners return false when there was an action to take for the key pressed,\n    // in order to prevent the default behavior of that key.\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.space', () => !this.activateCurrent()));\n    this._unlistenFuncs.push(this.renderer.listen(el, 'keydown.enter', () => !this.activateCurrent()));\n  }\n\n  moveTo(item: FocusableItem) {\n    /**\n     * Make sure that item is not undefined,\n     * This is safety net in the case that someone sometime decide to\n     * call this method without having FocusableItem.\n     */\n    if (item === undefined) {\n      return;\n    }\n\n    if (this.current) {\n      this.current.blur();\n    }\n    item.focus();\n    this._current = item;\n  }\n\n  move(direction: ArrowKeyDirection): boolean {\n    let moved = false;\n    if (this.current) {\n      const next = this.current[direction];\n      if (next) {\n        // Turning the value into an Observable isn't great, but it's the fastest way to avoid code duplication.\n        // If performance ever matters for this, we can refactor using additional private methods.\n        const nextObs = isObservable(next) ? next : of(next);\n        nextObs.subscribe(item => {\n          if (item) {\n            this.moveTo(item);\n            moved = true;\n          }\n        });\n      }\n    }\n    return moved;\n  }\n\n  activateCurrent() {\n    if (this.current && this.current.activate) {\n      this.current.activate();\n      return true;\n    }\n    return false;\n  }\n\n  detachListeners() {\n    this._unlistenFuncs.forEach(unlisten => unlisten());\n  }\n}\n\nexport function clrFocusServiceFactory(existing: FocusService, renderer: Renderer2) {\n  return existing || new FocusService(renderer);\n}\n\nexport const FOCUS_SERVICE_PROVIDER = {\n  provide: FocusService,\n  useFactory: clrFocusServiceFactory,\n  deps: [[new Optional(), new SkipSelf(), FocusService], Renderer2],\n};\n"]}