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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import './characteristic_list_item.js';
import './expandable_list.js';
import {assert} from 'chrome://resources/js/assert.js';
import {connectToDevice} from './device_broker.js';
import {ExpandableListElement} from './expandable_list.js';
import {showSnackbar, SnackbarType} from './snackbar.js';
export class CharacteristicListElement extends ExpandableListElement {
constructor() {
super();
/** @private {?string} */
this.deviceAddress_ = null;
/** @private {?string} */
this.serviceId_ = null;
/** @private {boolean} */
this.characteristicsRequested_ = false;
}
connectedCallback() {
super.connectedCallback();
this.classList.add('characteristic-list');
}
createItem(data) {
const item = document.createElement('characteristic-list-item');
assert(this.deviceAddress_);
assert(this.serviceId_);
item.initialize(data, this.deviceAddress_, this.serviceId_);
return item;
}
/**
* Loads the characteristic list with an array of CharacteristicInfo from
* the device with |deviceAddress| and service with |serviceId|. If no
* active connection to the device exists, one is created.
* @param {string} deviceAddress
* @param {string} serviceId
*/
load(deviceAddress, serviceId) {
this.setEmptyMessage('No Characteristics Found');
if (this.characteristicsRequested_ || !this.isSpinnerShowing()) {
return;
}
this.deviceAddress_ = deviceAddress;
this.serviceId_ = serviceId;
this.characteristicsRequested_ = true;
connectToDevice(deviceAddress)
.then(function(device) {
return device.getCharacteristics(serviceId);
}.bind(this))
.then(function(response) {
this.setData(response.characteristics || []);
this.setSpinnerShowing(false);
this.characteristicsRequested_ = false;
}.bind(this))
.catch(function(error) {
this.characteristicsRequested_ = false;
showSnackbar(
deviceAddress + ': ' + error.message, SnackbarType.ERROR, 'Retry',
function() {
this.load(deviceAddress, serviceId);
}.bind(this));
}.bind(this));
}
}
customElements.define('characteristic-list', CharacteristicListElement);
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