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Made TabViewItem bindable.

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This commit is contained in:
Rossen Hristov
2015-08-28 12:43:16 +03:00
parent db8b1172f9
commit 881c378a4e
7 changed files with 84 additions and 25 deletions
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25
ui/core/bindable.ts
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@@ -35,7 +35,14 @@ export class Bindable extends dependencyObservable.DependencyObservable implemen
public static bindingContextProperty = bindingContextProperty;
// TODO: Implement with WeakRef to prevent memory leaks.
private _bindings = {};
private _bindings: Object;
private get bindings(): Object {
if (!this._bindings) {
this._bindings = {};
}
return this._bindings;
}
get bindingContext(): Object {
return this._getValue(Bindable.bindingContextProperty);
@@ -45,13 +52,13 @@ export class Bindable extends dependencyObservable.DependencyObservable implemen
}
public bind(options: definition.BindingOptions, source?: Object) {
var binding: Binding = this._bindings[options.targetProperty];
var binding: Binding = this.bindings[options.targetProperty];
if (binding) {
binding.unbind();
}
binding = new Binding(this, options);
this._bindings[options.targetProperty] = binding;
this.bindings[options.targetProperty] = binding;
var bindingSource = source;
if (!bindingSource) {
@@ -64,15 +71,15 @@ export class Bindable extends dependencyObservable.DependencyObservable implemen
}
public unbind(property: string) {
var binding: Binding = this._bindings[property];
var binding: Binding = this.bindings[property];
if (binding) {
binding.unbind();
delete this._bindings[property];
delete this.bindings[property];
}
}
public _updateTwoWayBinding(propertyName: string, value: any) {
var binding: Binding = this._bindings[propertyName];
var binding: Binding = this.bindings[propertyName];
if (binding) {
binding.updateTwoWay(value);
@@ -92,7 +99,7 @@ export class Bindable extends dependencyObservable.DependencyObservable implemen
return;
}
}
var binding = this._bindings[property.name];
var binding = this.bindings[property.name];
if (binding && !binding.updating) {
if (binding.options.twoWay) {
trace.write("_updateTwoWayBinding(" + this + "): " + property.name, trace.categories.Binding);
@@ -107,8 +114,8 @@ export class Bindable extends dependencyObservable.DependencyObservable implemen
public _onBindingContextChanged(oldValue: any, newValue: any) {
var binding: Binding;
for (var p in this._bindings) {
binding = this._bindings[p];
for (var p in this.bindings) {
binding = this.bindings[p];
if (binding.updating || !binding.sourceIsBindingContext) {
continue;