ngx-masonry
Version:
Angular Module for displaying a feed of items in a masonry layout using https://github.com/desandro/masonry
138 lines • 16.1 kB
JavaScript
import { isPlatformBrowser } from '@angular/common';
import { Component, EventEmitter, Inject, Input, Output, PLATFORM_ID } from '@angular/core';
import * as i0 from "@angular/core";
let masonryConstructor;
export class NgxMasonryComponent {
constructor(platformId, _element) {
this.platformId = platformId;
this._element = _element;
this.updateLayout = false;
this.ordered = false;
// Outputs
this.layoutComplete = new EventEmitter();
this.removeComplete = new EventEmitter();
this.itemsLoaded = new EventEmitter();
this.pendingItems = [];
}
ngOnInit() {
if (isPlatformBrowser(this.platformId) && masonryConstructor === undefined) {
masonryConstructor = require('masonry-layout');
}
// Create masonry options object
if (!this.options) {
this.options = {};
}
// Set default itemSelector
if (!this.options.itemSelector) {
this.options.itemSelector = '[ngxMasonryItem], ngxMasonryItem';
}
this.options['transitionDuration'] = '0s';
if (isPlatformBrowser(this.platformId)) {
// Initialize Masonry
this.masonryInstance = new masonryConstructor(this._element.nativeElement, this.options);
// Bind to events
this.masonryInstance.on('layoutComplete', (items) => {
this.layoutComplete.emit(items);
});
this.masonryInstance.on('removeComplete', (items) => {
this.removeComplete.emit(items);
});
this.masonryInstance.items = [];
}
}
ngOnChanges(changes) {
// only update layout if it's not the first change
if (changes.updateLayout) {
if (!changes.updateLayout.firstChange) {
this.layout();
}
}
}
ngOnDestroy() {
if (this.masonryInstance) {
this.masonryInstance.destroy();
}
}
layout() {
setTimeout(() => {
this.masonryInstance.layout();
});
}
reloadItems() {
setTimeout(() => {
this.masonryInstance.reloadItems();
});
}
addPendingItem(item) {
this.pendingItems.push(item);
}
add(newItem) {
if (this.ordered) {
for (const [index, item] of this.pendingItems.entries()) {
if (item) {
if (item.images && item.images.size === 0) {
this.pendingItems[index] = undefined;
this.itemLoaded(item);
if (index + 1 === this.pendingItems.length) {
// All items are loaded
this.itemsLoaded.emit(this.pendingItems.length);
this.pendingItems = [];
}
}
else {
return;
}
}
}
}
else {
this.itemLoaded(newItem);
}
}
itemLoaded(item) {
if (isPlatformBrowser(this.platformId)) {
// Tell Masonry that a child element has been added
if (item.prepend) {
this.masonryInstance.prepended(item.element.nativeElement);
}
else {
this.masonryInstance.appended(item.element.nativeElement);
}
// Check if first item
if (this.masonryInstance.items.length === 1) {
this.masonryInstance.layout();
}
item.playAnimation(true);
}
}
remove(element) {
if (isPlatformBrowser(this.platformId)) {
// Tell Masonry that a child element has been removed
this.masonryInstance.remove(element);
// Layout items
this.layout();
}
}
}
NgxMasonryComponent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.7", ngImport: i0, type: NgxMasonryComponent, deps: [{ token: PLATFORM_ID }, { token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Component });
NgxMasonryComponent.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "14.2.7", type: NgxMasonryComponent, selector: "[ngx-masonry], ngx-masonry", inputs: { options: "options", updateLayout: "updateLayout", ordered: "ordered" }, outputs: { layoutComplete: "layoutComplete", removeComplete: "removeComplete", itemsLoaded: "itemsLoaded" }, usesOnChanges: true, ngImport: i0, template: '<ng-content></ng-content>', isInline: true, styles: [":host{display:block}\n"] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.7", ngImport: i0, type: NgxMasonryComponent, decorators: [{
type: Component,
args: [{ selector: '[ngx-masonry], ngx-masonry', template: '<ng-content></ng-content>', styles: [":host{display:block}\n"] }]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [PLATFORM_ID]
}] }, { type: i0.ElementRef }]; }, propDecorators: { options: [{
type: Input
}], updateLayout: [{
type: Input
}], ordered: [{
type: Input
}], layoutComplete: [{
type: Output
}], removeComplete: [{
type: Output
}], itemsLoaded: [{
type: Output
}] } });
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{ isPlatformBrowser } from '@angular/common';\nimport { Component, ElementRef, EventEmitter, Inject, Input, OnChanges, OnDestroy, OnInit, Output, PLATFORM_ID, SimpleChanges } from '@angular/core';\nimport { NgxMasonryOptions } from './ngx-masonry-options';\nimport { NgxMasonryDirective } from './ngx-masonry.directive';\n\ndeclare var require: any;\nlet masonryConstructor: any;\n\n@Component({\n  selector: '[ngx-masonry], ngx-masonry',\n  template: '<ng-content></ng-content>',\n  styles: [\n    `\n\t\t:host {\n\t\t\tdisplay: block;\n\t\t}\n\t`\n  ]\n})\nexport class NgxMasonryComponent implements OnInit, OnChanges, OnDestroy {\n  constructor(@Inject(PLATFORM_ID) private platformId: any, private _element: ElementRef) {}\n\n  public masonryInstance: any;\n\n  // Inputs\n  @Input() public options: NgxMasonryOptions;\n  @Input() updateLayout = false;\n  @Input() ordered = false;\n\n  // Outputs\n  @Output() layoutComplete: EventEmitter<any[]> = new EventEmitter<any[]>();\n  @Output() removeComplete: EventEmitter<any[]> = new EventEmitter<any[]>();\n  @Output() itemsLoaded: EventEmitter<number> = new EventEmitter<number>();\n\n  private pendingItems = [];\n\n  ngOnInit() {\n\n    if (isPlatformBrowser(this.platformId) && masonryConstructor === undefined) {\n      masonryConstructor = require('masonry-layout');\n    }\n\n    // Create masonry options object\n    if (!this.options) {\n      this.options = {};\n    }\n\n    // Set default itemSelector\n    if (!this.options.itemSelector) {\n      this.options.itemSelector = '[ngxMasonryItem], ngxMasonryItem';\n    }\n\n    this.options['transitionDuration'] = '0s';\n\n    if (isPlatformBrowser(this.platformId)) {\n      // Initialize Masonry\n      this.masonryInstance = new masonryConstructor(this._element.nativeElement, this.options);\n\n      // Bind to events\n      this.masonryInstance.on('layoutComplete', (items: any) => {\n        this.layoutComplete.emit(items);\n      });\n      this.masonryInstance.on('removeComplete', (items: any) => {\n        this.removeComplete.emit(items);\n      });\n      this.masonryInstance.items=[];\n    }\n  }\n\n  ngOnChanges(changes: SimpleChanges) {\n    // only update layout if it's not the first change\n    if (changes.updateLayout) {\n      if (!changes.updateLayout.firstChange) {\n        this.layout();\n      }\n    }\n  }\n\n  ngOnDestroy() {\n    if (this.masonryInstance) {\n      this.masonryInstance.destroy();\n    }\n  }\n\n  public layout() {\n    setTimeout(() => {\n      this.masonryInstance.layout();\n    });\n  }\n\n  public reloadItems() {\n    setTimeout(() => {\n      this.masonryInstance.reloadItems();\n    });\n  }\n\n  public addPendingItem(item: NgxMasonryDirective) {\n    this.pendingItems.push(item);\n  }\n\n  public add(newItem: NgxMasonryDirective) {\n    if (this.ordered) {\n      for (const [index, item] of this.pendingItems.entries()) {\n        if (item) {\n          if (item.images && item.images.size === 0) {\n            this.pendingItems[index] = undefined;\n            this.itemLoaded(item);\n            if (index + 1 === this.pendingItems.length) {\n              // All items are loaded\n              this.itemsLoaded.emit(this.pendingItems.length);\n              this.pendingItems = [];\n            }\n          } else {\n            return;\n          }\n        }\n      }\n    } else {\n      this.itemLoaded(newItem);\n    }\n  }\n\n  private itemLoaded(item: NgxMasonryDirective) {\n    if(isPlatformBrowser(this.platformId)){\n      // Tell Masonry that a child element has been added\n      if (item.prepend) {\n        this.masonryInstance.prepended(item.element.nativeElement);\n      } else {\n        this.masonryInstance.appended(item.element.nativeElement);\n      }\n\n      // Check if first item\n      if (this.masonryInstance.items.length === 1) {\n          this.masonryInstance.layout();\n      }\n      item.playAnimation(true);\n    }\n  }\n\n  public remove(element: HTMLElement) {\n    if (isPlatformBrowser(this.platformId)) {\n      // Tell Masonry that a child element has been removed\n      this.masonryInstance.remove(element);\n\n      // Layout items\n      this.layout();\n    }\n  }\n}\n"]}