ngx-page-visibility

I have forked olivierlsc/angular-page-visibility to use in my internal project. The original project does not support for Angular 6.x.

Angular Support

supports Angular >= 6.x and rxjs >= 6.x - [email protected] For Angular <= ^5.x and rxjs <= 5.x- use [email protected]

Getting started

First, install it.

npm install ngx-page-visibility --save

Then, import it into your @NgModule:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AngularPageVisibilityModule } from 'ngx-page-visibility';
import { AppComponent } from './app.component';

@NgModule( {
    declarations : [
        AppComponent
    ],
    imports : [
        BrowserModule,
        AngularPageVisibilityModule
    ],
    providers : [],
    bootstrap : [ AppComponent ]
} )
export class AppModule {
}

Then, use it in your component :

import { Component, OnDestroy, Inject, OnInit } from '@angular/core';
import { OnPageVisible, OnPageHidden, OnPageVisibilityChange } from "ngx-page-visibility";

@Component( {
    selector : 'app-root',
    templateUrl : './app.component.html',
    styleUrls : [ './app.component.scss' ]
} )
export class AppComponent implements OnDestroy, OnInit {
    title = 'app';

    constructor() {
    }

    ngOnInit(): void {
    }

    @OnPageVisible()
    logWhenPageVisible(): void {
        console.log( 'OnPageVisible' );
        console.log( 'visible' );
    }

    @OnPageHidden()
    logWhenPageHidden(): void {
        console.log( 'OnPageHidden' );
        console.log( 'hidden' );
    }

    @OnPageVisibilityChange()
    logWhenPageVisibilityChange( isPageVisible: boolean ): void {
        console.log( 'OnPageVisibilityChange' );
        if ( isPageVisible ) {
            console.log( 'visible' );
        } else {
            console.log( 'hidden' );
        }
    }

    ngOnDestroy(): void {
    }
}

Features and API

• @OnPageVisible
• @OnPageHidden
• @OnPageVisibilityChange
• PageVisibilityService

For any questions, suggestions, or feature requests

Please file an issue!

License

License under the MIT License (MIT)

Copyright © 2017-2018 Olivier LIN-SI-CHENG

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.