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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | 29x 29x 29x 19x 185x 19x 19x 19x 19x | import { customAttribute } from '../decorator/exported';
import { IAttribute, IListener, IBindingContext } from '../interface/exported';
import { BindingEngine } from '../binding/exported';
/**
* Helper for selects, so it knows where it is
*
*/
@customAttribute('model.bind')
export class ModelAttribute implements IAttribute {
// build in properties added by our template engine
public $element: HTMLInputElement;
public $attribute: Attr;
public $bindingContext: IBindingContext;
private value: string | null | undefined;
private subscribeInternal: IListener;
private expression: string | null | undefined;
/**
* created
*
*/
public created() {
(this.$attribute as any).getContent = () => {
return this;
};
this.expression = this.$attribute.value;
this.subscribeInternal = {
name: 'modelAttribute:',
value: this.value,
call: (newValue: any, oldValue: any) => {
if (oldValue !== newValue) {
this.value = newValue;
}
}
};
BindingEngine.subscribeClassProperty(this.$bindingContext, this.expression, this.subscribeInternal);
}
/**
* detached
*
*/
public detached() {
(this.$attribute as any).getContent = null;
}
}
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