@frshaw1/angular-visibility-api/dist/src/visibility.decorators.d.ts

An Angular and RxJS enabled event publisher for the browser's visibility API

/**
 * A TypeScript method decorator that will call the annotated method each time the browser visibility is updated.
 * The method should accept a single parameter which will correspond the current browser visibility.
 *
 * Each annotated method will be called immediately at runtime.
 *
 * @return {(target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<Function>) => void}
 * @constructor
 */
export declare function OnVisibilityChange(): (target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<Function>) => void;
/**
 * A TypeScript method decorator that will allow the annotated method to only be called if the browser visibility is
 * equal to the specified configuration value upon invocation of the method.
 *
 * Usage:
 *
 * ```
 * @WhenVisibilityIs(true)
 * onlyCallWhenVisible() {
 *   ...
 *   //implementation of method that should only be called if the user is
 *   //currently interacting with the application's browser window
 * }
 * ```
 *
 * @param {boolean} specifiedVisibility
 * @return {(target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<Function>) => any}
 * @constructor
 */
export declare function WhenVisibilityIs(specifiedVisibility: boolean): (target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<Function>) => void;