ngx-masonry

Angular Module for displaying a feed of items in a masonry layout using https://github.com/desandro/masonry

This package was originally a fork from https://github.com/jelgblad/angular2-masonry to allow it to work with newer versions of Angular.

This updated version is also compatible with Angular Universal server side rendering (SSR)

V9 beta

• update the version number to match angular version
• masonry-layout is now a peerDependency, not a dependency
• expose reloadItems() function
• remove imagesLoaded and support images loading by default

Installation

npm install ngx-masonry masonry-layout --save

If you're using SystemJS add ngx-masonry and masonry-layout to your configuration:

packages: {
  "ngx-masonry": { "defaultExtension": "js", "main": "index" }
},
map: {
  "ngx-masonry": "node_modules/ngx-masonry",
  "masonry-layout": "node_modules/masonry-layout/dist/masonry.pkgd.js"
}

Usage

Import NgxMasonryModule into your app's modules:

import { NgxMasonryModule } from 'ngx-masonry';

@NgModule({
  imports: [
    NgxMasonryModule
  ]
})

@Component({
  selector: 'my-component',
  template: `
     <ngx-masonry>
       <div ngxMasonryItem class="masonry-item" *ngFor="let item of masonryItems">
        {{item.title}}
      </div>
     </ngx-masonry>
     `,
  styles: [
    `
       .masonry-item { width: 200px; }
     `
  ]
})
class MyComponent {
  masonryItems = [
    { title: 'item 1' },
    { title: 'item 2' },
    { title: 'item 3' },
    { title: 'item 4' },
    { title: 'item 5' },
    { title: 'item 6' }
  ];
}

Configuration

Options

Read about Masonry options here: Masonry Options

The options-attribute takes an object with the following properties:

• itemSelector: string;
• columnWidth: number | string;
• gutter: number;
• percentPosition: boolean;
• stamp: string;
• fitWidth: boolean;
• originLeft: boolean;
• originTop: boolean;
• containerStyle: string;
• transitionDuration: string;
• resize: boolean;
• initLayout: boolean;
• horizontalOrder: boolean;

Examples

Inline object:

<ngx-masonry [options]="{ transitionDuration: '0.8s' }"></ngx-masonry>

From parent component:

import { NgxMasonryOptions } from 'ngx-masonry';

public myOptions: MasonryOptions = {
  transitionDuration: '0.8s'
};

<ngx-masonry [options]="myOptions"></ngx-masonry>

imagesLoaded

imagesLoaded is removed in V9. masonry item will support image by default

updateLayout

ngx-masonry has an input property, updateLayout, which accepts a boolean and will call masonry's layout() method on a change. It ignores the first change when the component loads.

<ngx-masonry [updateLayout]="updateMasonryLayout"></ngx-masonry>

When updateMasonryLayout is updated, the layout() method will be called.

Events

layoutComplete: EventEmitter<any[]>

Triggered after a layout and all positioning transitions have completed.

http://masonry.desandro.com/events.html#layoutcomplete

removeComplete: EventEmitter<any[]>

Triggered after an item element has been removed.

http://masonry.desandro.com/events.html#removecomplete

FAQ

• Why does masonry have wrong order?

The new item is always appended to the list because there is no "insert" function supported in masonry-layout. If the order changed and you want to update the order of items, use reloadItems()

// get reference
@ViewChild(NgxMasonryComponent, {static: false}) masonry: NgxMasonryComponent;

// after the order of items has changed
this.masonry.reloadItems();
this.masonry.layout();

• Why is it rendering the tiles twice in prod?

This could be the case because of angular build optimizer. A currently working "workaround" is disabling the build-optimizer in the angular.json file.

{
  "projects": {
    "my-project": {
      "architect": {
        "build": {
            "production": {
              "buildOptimizer": false
            }
          }
        }
    }
  }
}

For more information refer to this issue:
https://github.com/wynfred/ngx-masonry/issues/8

Examples

<ngx-masonry (layoutComplete)="doStuff($event)" (removeComplete)="doOtherStuff($event)"></ngx-masonry>

Demo

This repository contains a working app using ngx-masonry as a child module, not as an npm package. You can go to the demo respository to view an app that uses it as an npm package.

View a live demo here