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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.
/**
* Javascript for DescriptorList and DescriptorListItem, served from
* chrome://bluetooth-internals/.
*/
import './descriptor_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';
/**
* A list that displays DescriptorListItems.
*/
export class DescriptorListElement extends ExpandableListElement {
constructor() {
super();
/** @private {?string} */
this.deviceAddress_ = null;
/** @private {?string} */
this.serviceId_ = null;
/** @private {?string} */
this.characteristicId_ = null;
/** @private {boolean} */
this.descriptorsRequested_ = false;
}
connectedCallback() {
super.connectedCallback();
this.classList.add('descriptor-list');
}
createItem(data) {
const item = document.createElement('descriptor-list-item');
assert(this.deviceAddress_);
assert(this.serviceId_);
assert(this.characteristicId_);
item.initialize(
data, this.deviceAddress_, this.serviceId_, this.characteristicId_);
return item;
}
/**
* Loads the descriptor list with an array of DescriptorInfo from
* the device with |deviceAddress|, service with |serviceId|, and
* characteristic with |characteristicId|. If no active connection to the
* device exists, one is created.
* @param {string} deviceAddress
* @param {string} serviceId
* @param {string} characteristicId
*/
load(deviceAddress, serviceId, characteristicId) {
this.setEmptyMessage('No Descriptors Found');
if (this.descriptorsRequested_ || !this.isSpinnerShowing()) {
return;
}
this.deviceAddress_ = deviceAddress;
this.serviceId_ = serviceId;
this.characteristicId_ = characteristicId;
this.descriptorsRequested_ = true;
connectToDevice(deviceAddress)
.then(function(device) {
return device.getDescriptors(serviceId, characteristicId);
}.bind(this))
.then(function(response) {
this.setData(response.descriptors || []);
this.setSpinnerShowing(false);
this.descriptorsRequested_ = false;
}.bind(this))
.catch(function(error) {
this.descriptorsRequested_ = false;
showSnackbar(
deviceAddress + ': ' + error.message, SnackbarType.ERROR, 'Retry',
function() {
this.load(deviceAddress, serviceId, characteristicId);
}.bind(this));
}.bind(this));
}
}
customElements.define('descriptor-list', DescriptorListElement);
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