src/vs/platform/accessibility/common/accessibility.ts

57 LOC · 49 covered · 8 uncovered · 2 ranges · 2068 concepts · 1 introducers · 1048 tests

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  /*---------------------------------------------------------------------------------------------
  
editorOptions.ts ×92

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   *  Copyright (c) Microsoft Corporation. All rights reserved.
  
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   *  Licensed under the MIT License. See License.txt in the project root for license information.
  
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   *--------------------------------------------------------------------------------------------*/
  
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  import { Event } from '../../../base/common/event.js';
  
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  import { RawContextKey } from '../../contextkey/common/contextkey.js';
  
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  import { createDecorator } from '../../instantiation/common/instantiation.js';
  
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  export const IAccessibilityService = createDecorator<IAccessibilityService>('accessibilityService');
  
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  export interface IAccessibilityService {
  
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  	readonly _serviceBrand: undefined;
  
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  	readonly onDidChangeScreenReaderOptimized: Event<void>;
  
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  	readonly onDidChangeReducedMotion: Event<void>;
  
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  	readonly onDidChangeReducedTransparency: Event<void>;
  
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  	alwaysUnderlineAccessKeys(): Promise<boolean>;
  
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  	isScreenReaderOptimized(): boolean;
  
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  	isMotionReduced(): boolean;
  
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  	isTransparencyReduced(): boolean;
  
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  	getAccessibilitySupport(): AccessibilitySupport;
  
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  	setAccessibilitySupport(accessibilitySupport: AccessibilitySupport): void;
  
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  	alert(message: string): void;
  
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  	status(message: string): void;
  
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  }
  
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  export const enum AccessibilitySupport {
  
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  	/**
  
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  	 * This should be the browser case where it is not known if a screen reader is attached or no.
  
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  	 */
  
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  	Unknown = 0,
  
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  	Disabled = 1,
  
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  	Enabled = 2
  
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  }
  
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  export const CONTEXT_ACCESSIBILITY_MODE_ENABLED = new RawContextKey<boolean>('accessibilityModeEnabled', false);
  
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  export interface IAccessibilityInformation {
  
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  	label: string;
  
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  	role?: string;
  
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  }
  
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  export function isAccessibilityInformation(obj: unknown): obj is IAccessibilityInformation {
  
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  	if (!obj || typeof obj !== 'object') {
  
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  		return false;
  
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  	}
  
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  	const candidate = obj as Partial<IAccessibilityInformation>;
  
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  	return typeof candidate.label === 'string'
  
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  		&& (typeof candidate.role === 'undefined' || typeof candidate.role === 'string');
  
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  }
  
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editorOptions.ts ×92

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  export const ACCESSIBLE_VIEW_SHOWN_STORAGE_PREFIX = 'ACCESSIBLE_VIEW_SHOWN_';