54 lines
1.8 KiB
TypeScript
54 lines
1.8 KiB
TypeScript
/**
|
|
* @license
|
|
* Copyright (C) 2017 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners';
|
|
import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin';
|
|
import {PolymerElement} from '@polymer/polymer/polymer-element';
|
|
import {customElement, property} from '@polymer/decorators';
|
|
|
|
declare global {
|
|
interface HTMLElementTagNameMap {
|
|
'gr-endpoint-param': GrEndpointParam;
|
|
}
|
|
}
|
|
|
|
@customElement('gr-endpoint-param')
|
|
export class GrEndpointParam extends GestureEventListeners(
|
|
LegacyElementMixin(PolymerElement)
|
|
) {
|
|
@property({type: String, reflectToAttribute: true})
|
|
name = '';
|
|
|
|
@property({
|
|
type: Object,
|
|
notify: true,
|
|
observer: '_valueChanged',
|
|
})
|
|
value?: unknown;
|
|
|
|
_valueChanged(value: unknown) {
|
|
/* In polymer 2 the following change was made:
|
|
"Property change notifications (property-changed events) aren't fired when
|
|
the value changes as a result of a binding from the host"
|
|
(see https://polymer-library.polymer-project.org/2.0/docs/about_20).
|
|
To workaround this problem, we fire the event from the observer.
|
|
In some cases this fire the event twice, but our code is
|
|
ready for it.
|
|
*/
|
|
this.dispatchEvent(new CustomEvent('value-changed', {detail: {value}}));
|
|
}
|
|
}
|