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fix(ivy): implement rootNodes getter on ViewRef (#27095)

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PR Close #27095
This commit is contained in:
Pawel Kozlowski
2018-11-14 10:36:10 +01:00
committed by Andrew Kushnir
parent 1c9e526a83
commit ce5242462b
8 changed files with 232 additions and 24 deletions
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29
packages/core/src/render3/view_ref.ts
View File

@ -12,10 +12,12 @@ import {ViewContainerRef as viewEngine_ViewContainerRef} from '../linker/view_co
import {EmbeddedViewRef as viewEngine_EmbeddedViewRef, InternalViewRef as viewEngine_InternalViewRef} from '../linker/view_ref';
import {checkNoChanges, checkNoChangesInRootView, detectChanges, detectChangesInRootView, markViewDirty, storeCleanupFn, viewAttached} from './instructions';
import {TViewNode} from './interfaces/node';
import {FLAGS, LViewData, LViewFlags, PARENT} from './interfaces/view';
import {TNode, TNodeType, TViewNode} from './interfaces/node';
import {FLAGS, HOST, HOST_NODE, LViewData, LViewFlags, PARENT} from './interfaces/view';
import {destroyLView} from './node_manipulation';
import {getRendererFactory} from './state';
import {getNativeByTNode} from './util';
// Needed due to tsickle downleveling where multiple `implements` with classes creates
@ -38,8 +40,13 @@ export class ViewRef<T> implements viewEngine_EmbeddedViewRef<T>, viewEngine_Int
*/
_tViewNode: TViewNode|null = null;
// TODO(issue/24571): remove '!'.
rootNodes !: any[];
get rootNodes(): any[] {
if (this._view[HOST] == null) {
const tView = this._view[HOST_NODE] as TViewNode;
return collectNativeNodes(this._view, tView, []);
}
return [];
}
constructor(_view: LViewData, private _context: T|null, private _componentIndex: number) {
this._view = _view;
@ -269,3 +276,17 @@ export class RootViewRef<T> extends ViewRef<T> {
checkNoChanges(): void { checkNoChangesInRootView(this._view); }
}
function collectNativeNodes(lView: LViewData, parentTNode: TNode, result: any[]): any[] {
let tNodeChild = parentTNode.child;
while (tNodeChild) {
result.push(getNativeByTNode(tNodeChild, lView));
if (tNodeChild.type === TNodeType.ElementContainer) {
collectNativeNodes(lView, tNodeChild, result);
}
tNodeChild = tNodeChild.next;
}
return result;
}