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more code + tests updates

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This commit is contained in:
Vladimir Enchev
2015-11-10 15:20:21 +02:00
parent cea78d679f
commit f1abec42b5
2 changed files with 56 additions and 10 deletions
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14
ui/scroll-view/scroll-view-common.ts
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@@ -18,7 +18,7 @@ export var orientationProperty = new dependencyObservable.Property(
);
export class ScrollView extends contentView.ContentView implements definition.ScrollView {
private _scrollEventAttached: boolean;
private _scrollChangeCount: number = 0;
public static scrollEvent = "scroll";
get orientation(): string {
@@ -32,6 +32,7 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
super.addEventListener(arg, callback, thisArg);
if (arg === definition.ScrollView.scrollEvent) {
this._scrollChangeCount++;
this.attach();
}
}
@@ -40,6 +41,7 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
super.addEventListener(arg, callback, thisArg);
if (arg === definition.ScrollView.scrollEvent) {
this._scrollChangeCount--;
this.dettach();
}
}
@@ -57,23 +59,19 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
}
private attach() {
if (!this._scrollEventAttached && this.isLoaded) {
this._scrollEventAttached = true;
if (this._scrollChangeCount > 0 && this.isLoaded) {
this.attachNative();
}
}
private dettach() {
if (this._scrollEventAttached && this.isLoaded) {
this._scrollEventAttached = false;
if (this._scrollChangeCount === 0 && this.isLoaded) {
this.dettachNative();
}
}
protected attachNative() {
//
//
}
protected dettachNative() {