fkleuver · October 10, 2016 18:32
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
  <head>
    <title>Aurelia</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bluebird/3.4.6/bluebird.min.js"></script>
  </head>
  <body aurelia-app="src/main">
    <script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/system.js"></script>
    <script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/config-typescript.js"></script>
    <script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/aurelia-core.min.js"></script>
    <script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/aurelia-routing.min.js"></script>
    <script>
      System.import('aurelia-bootstrapper');
    </script>
  </body>
 </html>
diff --git a/src\app.html b/src\app.html
 <template> 
  <dynamic-html html.bind="dynamicHtml"></dynamic-html>
 </template>
diff --git a/src\app.ts b/src\app.ts
 export class App {
  public dynamicHtml: string = `
 <button click.delegate="handleClick()">Click me</button>
 `;

  public handleClick(): void {
    alert("Hello!")
  }
 }
diff --git a/src\dynamic-html.ts b/src\dynamic-html.ts
 import {
    customElement,
    TaskQueue,
    bindable,
    ViewCompiler,
    ViewSlot,
    View,
    ViewResources,
    Container,
    ViewFactory,
    inlineView,
    inject,
    DOM
 } from "aurelia-framework";

 @customElement("dynamic-html")
 @inlineView("<template><div></div></template>")
 @inject(DOM.Element, TaskQueue, Container, ViewCompiler)
 export class DynamicHtml {
    @bindable()
    public html: string;
    
    public element: HTMLElement;
    
    private tq: TaskQueue;
    private container: Container;
    private viewCompiler: ViewCompile;
    
    private runtimeView: View;
    private runtimeViewSlot: ViewSlot;
    private runtimeViewFactory: ViewFactory;
    private runtimeViewAnchor: HTMLDivElement;

    constructor(element, tq, container, viewCompiler) {
        this.element = <HTMLElement>element;
        this.tq = tq;
        this.container = container;
        this.viewCompiler = viewCompiler;
    }

    public bindingContext: any;
    public overrideContext: any;
    public bind(bindingContext: any, overrideContext: any): void {
        this.bindingContext = bindingContext;
        this.overrideContext = overrideContext;

        if (this.html) {
            this.htmlChanged(this.html, undefined);
        }
    }

    public unbind(): void {
        this.disposeView();

        this.bindingContext = null;
        this.overrideContext = null;
    }

    public needsApply: boolean = false;
    public isAttached: boolean = false;
    public attached(): void {
        this.runtimeViewAnchor = this.element.firstElementChild;
        
        this.isAttached = true;
        if (this.needsApply) {
            this.needsApply = false;
            this.apply();
        }
    }

    public detached(): void {
        this.isAttached = false;
        
        this.runtimeViewAnchor = null;
    }

    private htmlChanged(newValue: string, oldValue: void): void {
        if (newValue) {
            if (this.isAttached) {
                this.tq.queueMicroTask(() => {
                    this.apply();
                });
            } else {
                this.needsApply = true;
            }
        } else {
            if (this.isApplied) {
                this.disposeView();
            }
        }
    }

    private isApplied: boolean = false;
    private apply(): void {
        if (this.isApplied) {
            this.disposeView();
        }

        this.compileView();
    }

    private disposeView(): void {
        if (this.runtimeViewSlot) {
            this.runtimeViewSlot.unbind();
            this.runtimeViewSlot.detached();
            this.runtimeViewSlot.removeAll();
            this.runtimeViewSlot = null;
        }

        if (this.runtimeViewFactory) {
            this.runtimeViewFactory = null;
        }

        if (this.runtimeView) {
            this.runtimeView = null;
        }

        this.isApplied = false;
    }

    private compileView(): void {
        this.runtimeViewFactory = createViewFactory(this.viewCompiler, this.container, this.html);

        this.runtimeView = createView(this.runtimeViewFactory, this.container);

        this.runtimeViewSlot = createViewSlot(this.runtimeViewAnchor);
        this.runtimeViewSlot.add(this.runtimeView);
        this.runtimeViewSlot.bind(this.bindingContext, this.overrideContext);
        this.runtimeViewSlot.attached();

        this.isApplied = true;
    }

 }

 function createViewFactory(viewCompiler: ViewCompiler, container: Container, html: string): ViewFactory {
    if (!html.startsWith("<template>")) {
        html = `<template>${html}</template>`;
    }
    let viewResources: ViewResources = container.get(ViewResources);
    let viewFactory = viewCompiler.compile(html, viewResources);
    return viewFactory;
 }

 function createView(viewFactory: ViewFactory, container: Container): View {
    let childContainer = container.createChild();
    let view = viewFactory.create(childContainer);
    return view;
 }

 function createViewSlot(containerElement: Element): ViewSlot {
    let viewSlot = new ViewSlot(containerElement, true);
    return viewSlot;
 }
diff --git a/src\main.ts b/src\main.ts
 export function configure(aurelia) {
  aurelia.use
    .basicConfiguration()
    .globalResources([
      "src/dynamic-html"
    ]);
    
  aurelia.start().then(() => aurelia.setRoot());
 }
	<!DOCTYPE html>
	<html>
	<head>
	<title>Aurelia</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/bluebird/3.4.6/bluebird.min.js"></script>
	</head>
	<body aurelia-app="src/main">
	<script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/system.js"></script>
	<script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/config-typescript.js"></script>
	<script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/aurelia-core.min.js"></script>
	<script src="https://cdn.rawgit.com/aurelia/aurelia/master/scripts/aurelia-routing.min.js"></script>
	<script>
	System.import('aurelia-bootstrapper');
	</script>
	</body>
	</html>
	<template>
	<dynamic-html html.bind="dynamicHtml"></dynamic-html>
	</template>
	export class App {
	public dynamicHtml: string = `
	<button click.delegate="handleClick()">Click me</button>
	`;

	public handleClick(): void {
	alert("Hello!")
	}
	}
	import {
	customElement,
	TaskQueue,
	bindable,
	ViewCompiler,
	ViewSlot,
	View,
	ViewResources,
	Container,
	ViewFactory,
	inlineView,
	inject,
	DOM
	} from "aurelia-framework";

	@customElement("dynamic-html")
	@inlineView("<template><div></div></template>")
	@inject(DOM.Element, TaskQueue, Container, ViewCompiler)
	export class DynamicHtml {
	@bindable()
	public html: string;

	public element: HTMLElement;

	private tq: TaskQueue;
	private container: Container;
	private viewCompiler: ViewCompile;

	private runtimeView: View;
	private runtimeViewSlot: ViewSlot;
	private runtimeViewFactory: ViewFactory;
	private runtimeViewAnchor: HTMLDivElement;

	constructor(element, tq, container, viewCompiler) {
	this.element = <HTMLElement>element;
	this.tq = tq;
	this.container = container;
	this.viewCompiler = viewCompiler;
	}

	public bindingContext: any;
	public overrideContext: any;
	public bind(bindingContext: any, overrideContext: any): void {
	this.bindingContext = bindingContext;
	this.overrideContext = overrideContext;

	if (this.html) {
	this.htmlChanged(this.html, undefined);
	}
	}

	public unbind(): void {
	this.disposeView();

	this.bindingContext = null;
	this.overrideContext = null;
	}

	public needsApply: boolean = false;
	public isAttached: boolean = false;
	public attached(): void {
	this.runtimeViewAnchor = this.element.firstElementChild;

	this.isAttached = true;
	if (this.needsApply) {
	this.needsApply = false;
	this.apply();
	}
	}

	public detached(): void {
	this.isAttached = false;

	this.runtimeViewAnchor = null;
	}

	private htmlChanged(newValue: string, oldValue: void): void {
	if (newValue) {
	if (this.isAttached) {
	this.tq.queueMicroTask(() => {
	this.apply();
	});
	} else {
	this.needsApply = true;
	}
	} else {
	if (this.isApplied) {
	this.disposeView();
	}
	}
	}

	private isApplied: boolean = false;
	private apply(): void {
	if (this.isApplied) {
	this.disposeView();
	}

	this.compileView();
	}

	private disposeView(): void {
	if (this.runtimeViewSlot) {
	this.runtimeViewSlot.unbind();
	this.runtimeViewSlot.detached();
	this.runtimeViewSlot.removeAll();
	this.runtimeViewSlot = null;
	}

	if (this.runtimeViewFactory) {
	this.runtimeViewFactory = null;
	}

	if (this.runtimeView) {
	this.runtimeView = null;
	}

	this.isApplied = false;
	}

	private compileView(): void {
	this.runtimeViewFactory = createViewFactory(this.viewCompiler, this.container, this.html);

	this.runtimeView = createView(this.runtimeViewFactory, this.container);

	this.runtimeViewSlot = createViewSlot(this.runtimeViewAnchor);
	this.runtimeViewSlot.add(this.runtimeView);
	this.runtimeViewSlot.bind(this.bindingContext, this.overrideContext);
	this.runtimeViewSlot.attached();

	this.isApplied = true;
	}

	}

	function createViewFactory(viewCompiler: ViewCompiler, container: Container, html: string): ViewFactory {
	if (!html.startsWith("<template>")) {
	html = `<template>${html}</template>`;
	}
	let viewResources: ViewResources = container.get(ViewResources);
	let viewFactory = viewCompiler.compile(html, viewResources);
	return viewFactory;
	}

	function createView(viewFactory: ViewFactory, container: Container): View {
	let childContainer = container.createChild();
	let view = viewFactory.create(childContainer);
	return view;
	}

	function createViewSlot(containerElement: Element): ViewSlot {
	let viewSlot = new ViewSlot(containerElement, true);
	return viewSlot;
	}
	export function configure(aurelia) {
	aurelia.use
	.basicConfiguration()
	.globalResources([
	"src/dynamic-html"
	]);

	aurelia.start().then(() => aurelia.setRoot());
	}