ngm-masonry
Version:
Angular Module for displaying a feed of items in a masonry layout using https://github.com/glebmlk/ngx-masonry
215 lines • 18.7 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { isPlatformBrowser } from '@angular/common';
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, EventEmitter, Inject, Input, NgZone, Output, PLATFORM_ID, } from '@angular/core';
/** @type {?} */
let imagesLoaded;
/** @type {?} */
let masonryConstructor;
export class NgmMasonryComponent {
/**
* @param {?} platformId
* @param {?} element
* @param {?} ngZone
* @param {?} changeDetectorRef
*/
constructor(platformId, element, ngZone, changeDetectorRef) {
this.platformId = platformId;
this.element = element;
this.ngZone = ngZone;
this.changeDetectorRef = changeDetectorRef;
// Inputs
this.options = {};
this.useImagesLoaded = false;
this.updateLayout = false;
// Outputs
this.layoutComplete = new EventEmitter();
this.removeComplete = new EventEmitter();
}
/**
* @return {?}
*/
ngOnInit() {
this.ngZone.runOutsideAngular(() => {
if (this.useImagesLoaded && imagesLoaded === undefined) {
imagesLoaded = require('imagesloaded');
}
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 = '[ngmMasonryItem], ngmMasonryItem';
}
if (isPlatformBrowser(this.platformId)) {
// Initialize Masonry
this._msnry = new masonryConstructor(this.element.nativeElement, this.options);
// Bind to events
this._msnry.on('layoutComplete', (items) => {
this.layoutComplete.emit(items);
this.changeDetectorRef.markForCheck();
});
this._msnry.on('removeComplete', (items) => {
this.removeComplete.emit(items);
this.changeDetectorRef.markForCheck();
});
}
});
}
/**
* @param {?} changes
* @return {?}
*/
ngOnChanges(changes) {
// only update layout if it's not the first change
if (changes.updateLayout) {
if (!changes.updateLayout.firstChange) {
this.layout();
}
}
}
/**
* @return {?}
*/
ngOnDestroy() {
if (this._msnry) {
this._msnry.destroy();
}
}
/**
* @return {?}
*/
layout() {
requestAnimationFrame(() => {
this._msnry.layout();
this.changeDetectorRef.markForCheck();
});
}
/**
* @return {?}
*/
reloadItems() {
requestAnimationFrame(() => {
this._msnry.reloadItems();
this.changeDetectorRef.markForCheck();
});
}
// public add(element: HTMLElement, prepend: boolean = false) {
/**
* @param {?} element
* @return {?}
*/
add(element) {
this.ngZone.runOutsideAngular(() => {
/** @type {?} */
let isFirstItem = false;
// Check if first item
if (this._msnry.items.length === 0) {
isFirstItem = true;
}
if (this.useImagesLoaded) {
imagesLoaded(element, (instance) => {
this.element.nativeElement.appendChild(element);
// Tell Masonry that a child element has been added
setTimeout(() => {
this._msnry.appended(element);
this.changeDetectorRef.markForCheck();
});
// layout if first item
if (isFirstItem) {
this.layout();
}
});
this.element.nativeElement.removeChild(element);
}
else {
// Tell Masonry that a child element has been added
setTimeout(() => {
this._msnry.appended(element);
this.changeDetectorRef.markForCheck();
});
// layout if first item
if (isFirstItem) {
this.layout();
}
}
});
}
/**
* @param {?} element
* @return {?}
*/
remove(element) {
// Tell Masonry that a child element has been removed
this._msnry.remove(element);
// Layout items
this.layout();
}
}
NgmMasonryComponent.decorators = [
{ type: Component, args: [{
selector: '[ngm-masonry], ngm-masonry',
template: '<ng-content></ng-content>',
changeDetection: ChangeDetectionStrategy.OnPush,
styles: [`
:host {
display: block;
}
`]
}] }
];
/** @nocollapse */
NgmMasonryComponent.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] },
{ type: ElementRef },
{ type: NgZone },
{ type: ChangeDetectorRef }
];
NgmMasonryComponent.propDecorators = {
options: [{ type: Input }],
useImagesLoaded: [{ type: Input }],
updateLayout: [{ type: Input }],
layoutComplete: [{ type: Output }],
removeComplete: [{ type: Output }]
};
if (false) {
/** @type {?} */
NgmMasonryComponent.prototype._msnry;
/** @type {?} */
NgmMasonryComponent.prototype.options;
/** @type {?} */
NgmMasonryComponent.prototype.useImagesLoaded;
/** @type {?} */
NgmMasonryComponent.prototype.updateLayout;
/** @type {?} */
NgmMasonryComponent.prototype.layoutComplete;
/** @type {?} */
NgmMasonryComponent.prototype.removeComplete;
/**
* @type {?}
* @private
*/
NgmMasonryComponent.prototype.platformId;
/**
* @type {?}
* @private
*/
NgmMasonryComponent.prototype.element;
/**
* @type {?}
* @private
*/
NgmMasonryComponent.prototype.ngZone;
/**
* @type {?}
* @private
*/
NgmMasonryComponent.prototype.changeDetectorRef;
}
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{isPlatformBrowser} from '@angular/common';\nimport {\n    ChangeDetectionStrategy,\n    ChangeDetectorRef,\n    Component,\n    ElementRef,\n    EventEmitter,\n    Inject,\n    Input,\n    NgZone,\n    OnChanges,\n    OnDestroy,\n    OnInit,\n    Output,\n    PLATFORM_ID,\n    SimpleChanges,\n} from '@angular/core';\n\ndeclare var require: any;\nlet imagesLoaded: any;\nlet masonryConstructor: any;\n\nimport {INgmMasonryOptions} from './ngm-masonry-options';\n\n@Component({\n    selector: '[ngm-masonry], ngm-masonry',\n    template: '<ng-content></ng-content>',\n    styles: [\n        `\n            :host {\n                display: block;\n            }\n        `,\n    ],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class NgmMasonryComponent implements OnInit, OnChanges, OnDestroy {\n    constructor(\n        @Inject(PLATFORM_ID) private readonly platformId: any,\n        private readonly element: ElementRef,\n        private readonly ngZone: NgZone,\n        private readonly changeDetectorRef: ChangeDetectorRef,\n    ) {}\n\n    public _msnry: any;\n\n    // Inputs\n    @Input() public options: INgmMasonryOptions = {};\n    @Input() public useImagesLoaded: Boolean = false;\n    @Input() updateLayout: Boolean = false;\n\n    // Outputs\n    @Output() layoutComplete: EventEmitter<any[]> = new EventEmitter<any[]>();\n    @Output() removeComplete: EventEmitter<any[]> = new EventEmitter<any[]>();\n\n    ngOnInit() {\n        this.ngZone.runOutsideAngular(() => {\n            if (this.useImagesLoaded && imagesLoaded === undefined) {\n                imagesLoaded = require('imagesloaded');\n            }\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 = '[ngmMasonryItem], ngmMasonryItem';\n            }\n\n            if (isPlatformBrowser(this.platformId)) {\n                // Initialize Masonry\n                this._msnry = new masonryConstructor(\n                    this.element.nativeElement,\n                    this.options,\n                );\n\n                // Bind to events\n                this._msnry.on('layoutComplete', (items: any) => {\n                    this.layoutComplete.emit(items);\n                    this.changeDetectorRef.markForCheck();\n                });\n                this._msnry.on('removeComplete', (items: any) => {\n                    this.removeComplete.emit(items);\n                    this.changeDetectorRef.markForCheck();\n                });\n            }\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._msnry) {\n            this._msnry.destroy();\n        }\n    }\n\n    public layout() {\n        requestAnimationFrame(() => {\n            this._msnry.layout();\n            this.changeDetectorRef.markForCheck();\n        });\n    }\n\n    public reloadItems() {\n        requestAnimationFrame(() => {\n            this._msnry.reloadItems();\n            this.changeDetectorRef.markForCheck();\n        });\n    }\n\n    // public add(element: HTMLElement, prepend: boolean = false) {\n    public add(element: HTMLElement) {\n        this.ngZone.runOutsideAngular(() => {\n            let isFirstItem = false;\n\n            // Check if first item\n            if (this._msnry.items.length === 0) {\n                isFirstItem = true;\n            }\n\n            if (this.useImagesLoaded) {\n                imagesLoaded(element, (instance: any) => {\n                    this.element.nativeElement.appendChild(element);\n\n                    // Tell Masonry that a child element has been added\n                    setTimeout(() => {\n                        this._msnry.appended(element);\n                        this.changeDetectorRef.markForCheck();\n                    });\n\n                    // layout if first item\n                    if (isFirstItem) {\n                        this.layout();\n                    }\n                });\n\n                this.element.nativeElement.removeChild(element);\n            } else {\n                // Tell Masonry that a child element has been added\n                setTimeout(() => {\n                    this._msnry.appended(element);\n                    this.changeDetectorRef.markForCheck();\n                });\n\n                // layout if first item\n                if (isFirstItem) {\n                    this.layout();\n                }\n            }\n        });\n    }\n\n    public remove(element: HTMLElement) {\n        // Tell Masonry that a child element has been removed\n        this._msnry.remove(element);\n\n        // Layout items\n        this.layout();\n    }\n}\n"]}