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WeakEvents refactoring and used in ListView

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This commit is contained in:
vakrilov
2015-05-14 13:45:28 +03:00
parent 0e8ea034c7
commit 71c9266be3
10 changed files with 389 additions and 169 deletions
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20
ui/text-base/text-base.ts
View File

@@ -38,6 +38,8 @@ export class TextBase extends view.View implements definition.TextBase {
public static textProperty = textProperty;
public static formattedTextProperty = formattedTextProperty;
private _formattedTextChangedListenerId: number;
constructor(options?: definition.Options) {
super(options);
}
@@ -77,20 +79,18 @@ export class TextBase extends view.View implements definition.TextBase {
set formattedText(value: formattedString.FormattedString) {
if (this.formattedText !== value) {
var weakEventOptions: weakEventListener.WeakEventListenerOptions = {
targetWeakRef: new WeakRef(this),
eventName: observable.Observable.propertyChangeEvent,
sourceWeakRef: new WeakRef(value),
handler: this.onFormattedTextChanged,
handlerContext: this,
key: "formattedText"
};
if (this.formattedText) {
weakEventListener.WeakEventListener.removeWeakEventListener(weakEventOptions);
weakEventListener.WeakEventListener.removeWeakEventListener(this._formattedTextChangedListenerId);
delete this._formattedTextChangedListenerId;
}
this._setValue(TextBase.formattedTextProperty, value);
if (value) {
weakEventListener.WeakEventListener.addWeakEventListener(weakEventOptions);
this._formattedTextChangedListenerId = weakEventListener.WeakEventListener.addWeakEventListener({
target: this,
source: value,
eventName: observable.Observable.propertyChangeEvent,
handler: this.onFormattedTextChanged,
});
}
}
}