| 1 | /**
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| 2 | * Change description used for change callbacks in GlobalSettings.
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| 3 | *
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| 4 | * @public
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| 5 | * {@docCategory IChangeDescription}
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| 6 | */
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| 7 | export interface IChangeDescription {
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| 8 | key: string;
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| 9 | oldValue: any;
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| 10 | value: any;
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| 11 | }
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| 12 | /**
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| 13 | * Change event callback.
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| 14 | *
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| 15 | * @public
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| 16 | * {@docCategory IChangeEventCallback}
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| 17 | */
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| 18 | export interface IChangeEventCallback {
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| 19 | __id__?: string;
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| 20 | (changeDescription?: IChangeDescription): void;
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| 21 | }
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| 22 | /**
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| 23 | * Global settings helper, which stores settings in the global (window) namespace.
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| 24 | * If window is not provided, it will store settings in module scope. Provides a
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| 25 | * way to observe changes as well when their values change.
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| 26 | *
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| 27 | * @public
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| 28 | * {@docCategory GlobalSettings}
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| 29 | */
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| 30 | export declare class GlobalSettings {
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| 31 | static getValue<T>(key: string, defaultValue?: T | (() => T)): T;
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| 32 | static setValue<T>(key: string, value: T): T;
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| 33 | static addChangeListener(cb: IChangeEventCallback): void;
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| 34 | static removeChangeListener(cb: IChangeEventCallback): void;
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| 35 | }
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| 36 | |
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