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ng-ghosts-loading is a graphical interface library that you can generate phantom or skeleton components for an angular application, an objective as simple as using ng-ghosts-loading.

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ng-ghosts-loading

ng-ghosts-loading is a graphical interface library that you can generate phantom or skeleton components for an angular application, an objective as simple as using ng-ghosts-loading. πŸ˜„

Image

Getting started

ng-ghosts-loading it is an easy way to build page loading elements that make the user more calm. And ng-ghosts-loading also soothes the angular application developer, because it saves work on developing CSS code with complex animations.

Install

you can download ng-ghosts-loading via npm:

npm i ng-ghosts-loading

Or you can download the zip file from the github repository πŸ™ :

https://github.com/SergioNoivak/ng-ghosts-loading

Import to your application

In the general module app.module.ts of your application you must import NgGhostsLoadingModule into your angular application.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
    // add here

import { NgGhostsLoadingModule} from 'projects/ng-ghosts-loading/src/public-api';

//app.module.ts
@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,

    // and add here
    NgGhostsLoadingModule

  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

The ghost-loading tag

The ghost-loading tag is the basic loading container that the framework works.a basic example of using the tag is the creation of a phantom square, as below:

Image

The html code is very simple, as shown below:

<!-- app.component.html -->

<ghost-loading [width] = "100" [height] = "100"   >
</ghost-loading>

When creating a tag ghost-loading, it must have the attributes height and width, which must be passed in pixels.

circular ghost tag

You can create a circular ghost tag by adding the circular property. As below:

Image

<!-- app.component.html -->

<ghost-loading [width] = "100" [height] = "100" circle="true"  >
</ghost-loading>

Adding child tags to ghost-loading

Only with the ghost-loading tag is it not possible to create complex styles, so to develop complex styles it is possible to have children of ghost-loading that will automatically be ghosts. The entire style application will still be preserved for your children from ghost-loading:

Image

<!-- app.component.html -->
<div class="center">
  <ghost-loading [width] = "100" [height] = "100" circle="true"  >
    <img width="100" height="100" style="border-radius: 50%;" src="./image.png" alt="" class="">
  </ghost-loading>
</div>

in this example the image will also be applied by ghosts because it is a child of ghost-loading tag

delay property

The delay property of ghost-loading allows tags to have different ghosts animations. If no delay value is provided, the ghost component will assume 1.5 seconds of animation, but it is possible to provide the delay property with a value in seconds, as follows:

Image

<!-- app.component.html -->

  <ghost-loading [width] = "100" [height] = "10"   >
  </ghost-loading>

  <ghost-loading [delay]="2.0" [width] = "100" [height] = "10"   >
  </ghost-loading>

It is observed that the two ghosts elements are not synchronized, this is due to the delay property.

Example 1 : Dog contact ghost

Image

In this example we are going to create a loading page with a photo of a beautiful dog with four ghost lines. The ghostly style is applied to the dog's photo because he is the son of the tag ghost-loading .Please note below:

 <ghost-loading [width]= "200"  [height]= "200" [circle]="true">
          <img style="border-radius: 50%;" width="200" height="200" [src]="imgSrc" alt="" class="">
 </ghost-loading>

   <div style="margin-top: 10px;">
    <ghost-loading [width]= "200"  [height]= "10" ></ghost-loading>
  </div>
  <div style="margin-top: 10px;">
    <ghost-loading [width]= "200"  [height]= "10" ></ghost-loading>
  </div>
  <div style="margin-top: 10px;">
    <ghost-loading [width]= "200"  [height]= "10" ></ghost-loading>
  </div>
  <div style="margin-top: 10px;">
    <ghost-loading [width]= "200"  [height]= "10" ></ghost-loading>
  </div>

Example 2 : friend's list

Image

In this example we are going to create a list of ghost friends, which can be used on a social network, for example. The vector [1,2,3,4,5] can be created in the component, but it is not the objective here, the example demonstrates how ghosts can be combined in a list to create complex elements, like a list of friends in a network Social.

<!-- app.component.html -->

  <div *ngFor="let item of [1,2,3,4,5]" style="margin-bottom: 5px;" >
    <ghost-loading [width] = "300" [height] = "50"   >
      <div style="display: flex;">
        <ghost-loading [delay]='2.0' [width] = "45" [height] = "45" [circle]="true" ></ghost-loading>
        <div style="flex-direction: column; ">
          <div *ngFor="let x of [1,2,3]" style="margin-bottom: 5px; margin-left: 10px; ">
          <ghost-loading   [delay]='2.0' [width] = "240" [height] = "8" ></ghost-loading>
        </div>
        </div>
      </div>
  </ghost-loading>

  </div>

In this example, asynchronicity is guaranteed thanks to the delay attribute. As the external delay for the root node ghost-loading was not informed, a delay of 1.5 seconds is assumed for this. For the other ghosts elements, there is an informed delay property equal to 2.0 seconds

Tag attributes

List of possible attributes of a ghost-loading:

  • width: represents the width of a ghost, and must be expressed as an integer in pixel values.
  • height: represents the height of a ghost, and must be expressed as an integer in pixel values.
  • delay: Represents the delay / duration in the animation of the ghost.
  • circle: Boolean attribute that indicates whether the ghost is a circle.

Contact me

@serginhosnovak@hotmail.com