使用 gridstack.io，我想有一个按钮，可以将小部件"添加到特定区域。我有一个组件"，我想动态添加到网格中。
鉴于我对网格堆栈的以下定义，如果我添加一个按钮，当您单击它时，它会在左上角添加一个新指令，我该如何实现？
我有以下指令：
grid-stack-directive.ts：
import { Directive, OnInit, Input, ElementRef, Renderer } from '@angular/core';
declare var $: any; // JQuery
@Directive({
selector: '[gridStack]'
})
export class GridStackDirective implements OnInit {
@Input() w: number;
@Input() animate: boolean;
constructor(
private el: ElementRef,
private renderer: Renderer
) {
renderer.setElementAttribute(el.nativeElement, "class", "grid-stack");
}
ngOnInit() {
let renderer = this.renderer;
let nativeElement = this.el.nativeElement;
let animate: string = this.animate ? "yes" : "no";
renderer.setElementAttribute(nativeElement, "data-gs-width", String(this.w));
if(animate == "yes") {
renderer.setElementAttribute(nativeElement, "data-gs-animate", animate);
}
let options = {
cellHeight: 80,
verticalMargin: 10
};
// TODO: listen to an event here instead of just waiting for the time to expire
setTimeout(function () {
$('.grid-stack').gridstack(options);
}, 300);
}
}
grid-stack-item-directive.ts：
import { Directive, ElementRef, Input, Renderer, OnInit } from '@angular/core';
@Directive({
selector: '[gridStackItem]'
})
export class GridStackItemDirective {
@Input() x: number;
@Input() y: number;
@Input() w: number;
@Input() h: number;
@Input() minWidth: number;
@Input() canResize: boolean;
constructor(
private el: ElementRef,
private renderer: Renderer
) {
renderer.setElementAttribute(el.nativeElement, "class", "grid-stack-item");
}
ngOnInit(): void {
let renderer = this.renderer;
let nativeElement = this.el.nativeElement;
let cannotResize: string = this.canResize ? "yes" : "no";
let elementText: string = '<div class="grid-stack-item-content">' + nativeElement.innerHTML + '</div>';
// TODO: Find the Angular(tm) way to do this ...
nativeElement.innerHTML = elementText;
renderer.setElementAttribute(nativeElement, "data-gs-x", String(this.x));
renderer.setElementAttribute(nativeElement, "data-gs-y", String(this.y));
renderer.setElementAttribute(nativeElement, "data-gs-width", String(this.w));
renderer.setElementAttribute(nativeElement, "data-gs-height", String(this.h));
if(this.minWidth) {
renderer.setElementAttribute(nativeElement, "data-gs-min-width", String(this.minWidth));
}
if(cannotResize == "yes") {
renderer.setElementAttribute(nativeElement, "data-gs-no-resize", cannotResize);
}
}
}
app.component.html:
<h1>My First Grid Stack Angular 2 App</h1>
<section id="demo" class="darklue">
<div class="container">
<div class="row">
<div class="col-lg-12 text-center">
<h2>Demo</h2>
<hr class="star-light">
</div>
</div>
<div gridStack w="12" animate="true">
<div gridStackItem x="0" y="0" w="4" h="2">1</div>
<div gridStackItem x="4" y="0" w="4" h="4">2</div>
<div gridStackItem x="8" y="0" w="2" h="2" canResize="false" minWidth="2">
<span class="fa fa-hand-o-up"></span> Drag me!
</div>
<div gridStackItem x="10" y="0" w="2" h="2">4</div>
<div gridStackItem x="0" y="2" w="2" h="2">5</div>
<div gridStackItem x="2" y="2" w="2" h="4">6</div>
<div gridStackItem x="8" y="2" w="4" h="2">7</div>
<div gridStackItem x="0" y="4" w="2" h="2">8</div>
<div gridStackItem x="4" y="4" w="4" h="2">9</div>
<div gridStackItem x="8" y="4" w="2" h="2">10</div>
<div gridStackItem x="10" y="4" w="2" h="2">11</div>
</div>
</div>
</section>
索引.html：
<html>
<head>
<title>Angular QuickStart</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="styles.css">
<link rel="stylesheet" href="node_modules/font-awesome/css/font-awesome.min.css">
<link href="https://fonts.googleapis.com/css?family=Montserrat:400,700" rel="stylesheet" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic" rel="stylesheet" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Indie+Flower" rel='stylesheet' type='text/css'>
<!-- 1. Load libraries -->
<!-- Polyfill(s) for older browsers -->
<script src="node_modules/core-js/client/shim.min.js"></script>
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/reflect-metadata/Reflect.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<!-- 2. Configure SystemJS -->
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function(err){ console.error(err); });
</script>
<!-- jquery -->
<script src="node_modules/jquery/dist/jquery.js"></script>
<script src="node_modules/jquery-ui-dist/jquery-ui.min.js"></script>
<script src="node_modules/jquery-ui-touch-punch/jquery.ui.touch-punch.min.js"></script>
<script src="node_modules/jquery-easing/dist/jquery.easing.1.3.umd.min.js"></script>
<!-- underscore and gridstack -->
<script src="node_modules/underscore/underscore-min.js"></script>
<script src="node_modules/gridstack/dist/gridstack.js"></script>
<link rel="stylesheet" href="node_modules/gridstack/dist/gridstack.min.css">
<link rel="stylesheet" href="node_modules/gridstack/dist/gridstack-extra.min.css">
<link rel="stylesheet" href="app/css/gridstack-demo.css">
<!-- bootstrap -->
<script src="node_modules/bootstrap/dist/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.css">
<!-- freelancer stuff -->
<script src="app/js/freelancer.js"></script>
<link rel="stylesheet" href="app/css/freelancer.css">
</head>
<!-- 3. Display the application -->
<body>
<my-app>Loading...</my-app>
</body>
</html>
您可以在gridStack指令中创建一个"路由器" - 它将获得一个表示所需组件类型的字符串，并加载它ngIf
<div customGridStackItem1 *ngIf="itemType == 'stackItem1'"></div>
<div customGridStackItem2 *ngIf="itemType == 'stackItem2'"></div>
<div anotherGridStackItem *ngIf="itemType == 'anotherStackItem'"></div>
这样，您将只在每个网格项中加载所需的组件