angular2
Version:
Angular 2 - a web framework for modern web apps
41 lines • 5.58 kB
JavaScript
/**
* Represents an Embedded Template that can be used to instantiate Embedded Views.
*
* You can access a `TemplateRef`, in two ways. Via a directive placed on a `<template>` element (or
* directive prefixed with `*`) and have the `TemplateRef` for this Embedded View injected into the
* constructor of the directive using the `TemplateRef` Token. Alternatively you can query for the
* `TemplateRef` from a Component or a Directive via {@link Query}.
*
* To instantiate Embedded Views based on a Template, use
* {@link ViewContainerRef#createEmbeddedView}, which will create the View and attach it to the
* View Container.
*/
export class TemplateRef {
/**
* The location in the View where the Embedded View logically belongs to.
*
* The data-binding and injection contexts of Embedded Views created from this `TemplateRef`
* inherit from the contexts of this location.
*
* Typically new Embedded Views are attached to the View Container of this location, but in
* advanced use-cases, the View can be attached to a different container while keeping the
* data-binding and injection context from the original location.
*
*/
// TODO(i): rename to anchor or location
get elementRef() { return null; }
}
export class TemplateRef_ extends TemplateRef {
constructor(_appElement, _viewFactory) {
super();
this._appElement = _appElement;
this._viewFactory = _viewFactory;
}
createEmbeddedView() {
var view = this._viewFactory(this._appElement.parentView.viewUtils, this._appElement.parentInjector, this._appElement);
view.create(null, null);
return view.ref;
}
get elementRef() { return this._appElement.elementRef; }
}
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