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https://github.com/akserg/ng2-slim-loading-bar

Angular 2 component shows slim loading bar at the top of the page.
https://github.com/akserg/ng2-slim-loading-bar

angular bar loading progress progress-bar

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Angular 2 component shows slim loading bar at the top of the page.

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# Angular 2 Slim Loading Bar [![npm version](https://img.shields.io/npm/v/ng2-slim-loading-bar.svg)](https://www.npmjs.com/package/ng2-slim-loading-bar) [![npm monthly downloads](https://img.shields.io/npm/dm/ng2-slim-loading-bar.svg?style=flat-square)](https://www.npmjs.com/package/ng2-slim-loading-bar)

Angular2 component shows slim loading bar at the top of the page of your application.



[![Build Status](https://travis-ci.org/akserg/ng2-slim-loading-bar.svg?branch=master)](https://travis-ci.org/akserg/ng2-slim-loading-bar)

[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)

[![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)

[![Dependency Status](https://david-dm.org/akserg/ng2-slim-loading-bar.svg)](https://david-dm.org/akserg/ng2-slim-loading-bar)

[![devDependency Status](https://david-dm.org/akserg/ng2-slim-loading-bar/dev-status.svg)](https://david-dm.org/akserg/ng2-slim-loading-bar#info=devDependencies)

[![Known Vulnerabilities](https://snyk.io/test/github/akserg/ng2-slim-loading-bar/badge.svg)](https://snyk.io/test/github/akserg/ng2-slim-loading-bar)



Follow me [![twitter](https://img.shields.io/twitter/follow/akopkokhyants.svg?style=social&label=%20akopkokhyants)](https://twitter.com/akopkokhyants) to be notified about new releases.



_Some of these APIs and Components are not final and are subject to change!_



## Installation



```sh

npm install ng2-slim-loading-bar --save

```



## Demo

Simple examples using ng2-slim-loading-bar:

- with SystemJS in [ng2-systemjs-demo](https://github.com/akserg/ng2-systemjs-demo)

- with Webpack in [ng2-webpack-demo](https://github.com/akserg/ng2-webpack-demo)



Online demo available [here](http://akserg.github.io/ng2-webpack-demo)



## Usage



If you use SystemJS to load your files, you might have to update your config:



```js

System.config({

    map: {

        'ng2-slim-loading-bar': 'node_modules/ng2-slim-loading-bar/bundles/index.umd.js'

    }

});

```



#### 1. Update the markup

- Import the `style.css` file into your web page

- Add `` tag in template of your application component.



#### 2. Import the `SlimLoadingBarModule`

Import `SlimLoadingBarModule.forRoot()` in the NgModule of your application.

The `forRoot` method is a convention for modules that provide a singleton service.



```ts

import {BrowserModule} from "@angular/platform-browser";

import {NgModule} from '@angular/core';

import {SlimLoadingBarModule} from 'ng2-slim-loading-bar';



@NgModule({

    imports: [

        BrowserModule,

        SlimLoadingBarModule.forRoot()

    ],

    bootstrap: [AppComponent]

})

export class AppModule {

}

```



If you have multiple NgModules and you use one as a shared NgModule (that you import in all of your other NgModules),

don't forget that you can use it to export the `SlimLoadingBarModule` that you imported in order to avoid having to import it multiple times.



```ts

@NgModule({

    imports: [

        BrowserModule,

        SlimLoadingBarModule.forRoot()

    ],

    exports: [BrowserModule, SlimLoadingBarModule],

})

export class SharedModule {

}

```



#### 3. Use the `SlimLoadingBarService` for your application

- Import `SlimLoadingBarService` from `ng2-slim-loading-bar` in your application code:



```js

import {Component} from '@angular/core';

import {SlimLoadingBarService} from 'ng2-slim-loading-bar';



@Component({

    selector: 'app',

    template: `

        
Hello world


        Start Loading

        Stop Loading

        Complete Loading

        

    `

})

export class AppComponent {



    constructor(private slimLoadingBarService: SlimLoadingBarService) { }



    startLoading() {

        this.slimLoadingBarService.start(() => {

            console.log('Loading complete');

        });

    }



    stopLoading() {

        this.slimLoadingBarService.stop();

    }



    completeLoading() {

        this.slimLoadingBarService.complete();

    }

}

```



#### 3. Customize the the `ng2-slim-loading-bar` for your application

You can use the following properties to customize the `ng2-slim-loading-bar` component in your template:

- `color` - The color of loading bar. Default is `firebrick`. It can be any CSS compatible value.

- `height` - The height of loading bar. Default value is `2px`.

- `show` - The flag helps hide and show the loading bar. Default value is `true`.



Example: 

``



#### 4. Manage the loading bar

You can use the following properties to customize the SlimLoadingBar via instance of SlimLoadingBarService:

- `color` - The color of loading bar.

- `height` - The height of loading bar.

- `visible` - The flag helps hide and show the loading bar, false for hidden and true for visible.



You can use the following methods to control the SlimLoadingBar via instance of SlimLoadingBarService:

- `start` - Start the loading progress. Use the callback function as an parameter to listed the complete event.

- `stop` - Stop the loading progress. This method pause the current position of loading progress.

- `reset`- Reset the position of loading progress to 0.

- `complete` - Set the progress to 100% and hide the progress bar.



#### 5. Events handling

You can hook up with our different types of events thrown.

- `SlimLoadingBarEventType.PROGRESS`

- `SlimLoadingBarEventType.HEIGHT`

- `SlimLoadingBarEventType.COLOR`

- `SlimLoadingBarEventType.VISIBLE`



you can subscribe to these events types by simplying doing this

```js

 constructor(private _loadingBar: SlimLoadingBarService) {

    this._loadingBar.events.subscribe((item:SlimLoadingBarEvent) => console.log(item));

   }

```

where item returned is of `SlimLoadingBarEvent {type: SlimLoadingBarEventType, value: any}`



# Credits 

Inspired by [ngProgress.js](https://github.com/VictorBjelkholm/ngProgress)



# License

 [MIT](/LICENSE)