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perf(angular): proxy fast properties (#16888)

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* perf(angular): proxy fast properties

* update stencil
This commit is contained in:
Manu MA
2018-12-28 18:37:24 +01:00
committed by GitHub
parent 8b140306ef
commit ca9ec3e18a
6 changed files with 400 additions and 388 deletions
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37
angular/src/directives/virtual-scroll/virtual-scroll.ts
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@ -31,7 +31,7 @@ export declare interface IonVirtualScroll {
export class IonVirtualScroll {
private differ?: IterableDiffer<any>;
private nativeEl: HTMLIonVirtualScrollElement;
private el: HTMLIonVirtualScrollElement;
private refMap = new WeakMap<HTMLElement, EmbeddedViewRef<VirtualContext>> ();
@ContentChild(VirtualItem) itmTmp!: VirtualItem;
@ -122,23 +122,8 @@ export class IonVirtualScroll {
private iterableDiffers: IterableDiffers,
elementRef: ElementRef,
) {
this.nativeEl = elementRef.nativeElement as HTMLIonVirtualScrollElement;
this.nativeEl.nodeRender = this.nodeRender.bind(this);
proxyInputs(this, this.nativeEl, [
'approxItemHeight',
'approxHeaderHeight',
'approxFooterHeight',
'headerFn',
'footerFn',
'items',
'itemHeight'
]);
proxyMethods(this, this.nativeEl, [
'checkEnd',
'checkRange',
'positionForItem'
]);
this.el = elementRef.nativeElement as HTMLIonVirtualScrollElement;
this.el.nodeRender = this.nodeRender.bind(this);
}
ngOnChanges(changes: SimpleChanges): void {
@ -208,3 +193,19 @@ function getElement(view: EmbeddedViewRef<VirtualContext>): HTMLElement {
}
throw new Error('virtual element was not created');
}
proxyInputs(IonVirtualScroll, [
'approxItemHeight',
'approxHeaderHeight',
'approxFooterHeight',
'headerFn',
'footerFn',
'items',
'itemHeight'
]);
proxyMethods(IonVirtualScroll, [
'checkEnd',
'checkRange',
'positionForItem'
]);