Tobias Bosch
2b34c88b69
BREAKING CHANGE:
- Renderer:
* renderComponent method is removed form `Renderer`, only present on `RootRenderer`
* Renderer.setDebugInfo is removed. Renderer.createElement / createText / createTemplateAnchor
now take the DebugInfo directly.
- Query semantics:
* Queries don't work with dynamically loaded components.
* e.g. for router-outlet: loaded components can't be queries via @ViewQuery,
but router-outlet emits an event `activate` now that emits the activated component
- Exception classes and the context inside changed (renamed fields)
- DebugElement.attributes is an Object and not a Map in JS any more
- ChangeDetectorGenConfig was renamed into CompilerConfig
- AppViewManager.createEmbeddedViewInContainer / AppViewManager.createHostViewInContainer
are removed, use the methods in ViewContainerRef instead
- Change detection order changed:
* 1. dirty check component inputs
* 2. dirty check content children
* 3. update render nodes
Closes #6301
Closes #6567
112 lines
3.5 KiB
TypeScript
112 lines
3.5 KiB
TypeScript
import {Injectable} from 'angular2/src/core/di';
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import {ViewMetadata} from 'angular2/src/core/metadata/view';
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import {ComponentMetadata} from 'angular2/src/core/metadata/directives';
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import {Type, stringify, isBlank, isPresent} from 'angular2/src/facade/lang';
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import {BaseException} from 'angular2/src/facade/exceptions';
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import {Map} from 'angular2/src/facade/collection';
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import {ReflectorReader} from 'angular2/src/core/reflection/reflector_reader';
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import {reflector} from 'angular2/src/core/reflection/reflection';
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/**
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* Resolves types to {@link ViewMetadata}.
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*/
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@Injectable()
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export class ViewResolver {
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private _reflector: ReflectorReader;
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/** @internal */
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_cache = new Map<Type, ViewMetadata>();
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constructor(_reflector?: ReflectorReader) {
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if (isPresent(_reflector)) {
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this._reflector = _reflector;
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} else {
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this._reflector = reflector;
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}
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}
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resolve(component: Type): ViewMetadata {
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var view = this._cache.get(component);
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if (isBlank(view)) {
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view = this._resolve(component);
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this._cache.set(component, view);
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}
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return view;
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}
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/** @internal */
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_resolve(component: Type): ViewMetadata {
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var compMeta: ComponentMetadata;
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var viewMeta: ViewMetadata;
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this._reflector.annotations(component).forEach(m => {
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if (m instanceof ViewMetadata) {
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viewMeta = m;
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}
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if (m instanceof ComponentMetadata) {
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compMeta = m;
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}
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});
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if (isPresent(compMeta)) {
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if (isBlank(compMeta.template) && isBlank(compMeta.templateUrl) && isBlank(viewMeta)) {
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throw new BaseException(
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`Component '${stringify(component)}' must have either 'template' or 'templateUrl' set.`);
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} else if (isPresent(compMeta.template) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("template", component);
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} else if (isPresent(compMeta.templateUrl) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("templateUrl", component);
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} else if (isPresent(compMeta.directives) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("directives", component);
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} else if (isPresent(compMeta.pipes) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("pipes", component);
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} else if (isPresent(compMeta.encapsulation) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("encapsulation", component);
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} else if (isPresent(compMeta.styles) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("styles", component);
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} else if (isPresent(compMeta.styleUrls) && isPresent(viewMeta)) {
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this._throwMixingViewAndComponent("styleUrls", component);
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} else if (isPresent(viewMeta)) {
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return viewMeta;
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} else {
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return new ViewMetadata({
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templateUrl: compMeta.templateUrl,
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template: compMeta.template,
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directives: compMeta.directives,
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pipes: compMeta.pipes,
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encapsulation: compMeta.encapsulation,
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styles: compMeta.styles,
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styleUrls: compMeta.styleUrls
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});
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}
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} else {
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if (isBlank(viewMeta)) {
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throw new BaseException(
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`Could not compile '${stringify(component)}' because it is not a component.`);
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} else {
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return viewMeta;
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}
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}
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return null;
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}
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/** @internal */
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_throwMixingViewAndComponent(propertyName: string, component: Type): void {
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throw new BaseException(
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`Component '${stringify(component)}' cannot have both '${propertyName}' and '@View' set at the same time"`);
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}
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}
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