144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
// Copyright (c) 2016 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/lib/bluetooth_chooser.h"
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#include "shell/common/gin_converters/callback_converter.h"
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#include "shell/common/gin_helper/dictionary.h"
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namespace gin {
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template <>
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struct Converter<electron::BluetoothChooser::DeviceInfo> {
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static v8::Local<v8::Value> ToV8(
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v8::Isolate* isolate,
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const electron::BluetoothChooser::DeviceInfo& val) {
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auto dict = gin_helper::Dictionary::CreateEmpty(isolate);
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dict.Set("deviceName", val.device_name);
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dict.Set("deviceId", val.device_id);
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return gin::ConvertToV8(isolate, dict);
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}
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};
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} // namespace gin
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namespace electron {
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namespace {
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void OnDeviceChosen(const content::BluetoothChooser::EventHandler& handler,
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const std::string& device_id) {
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if (device_id.empty()) {
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handler.Run(content::BluetoothChooserEvent::CANCELLED, device_id);
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} else {
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handler.Run(content::BluetoothChooserEvent::SELECTED, device_id);
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}
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}
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} // namespace
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BluetoothChooser::BluetoothChooser(api::WebContents* contents,
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const EventHandler& event_handler)
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: api_web_contents_(contents), event_handler_(event_handler) {}
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BluetoothChooser::~BluetoothChooser() {
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event_handler_.Reset();
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}
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void BluetoothChooser::SetAdapterPresence(AdapterPresence presence) {
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switch (presence) {
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case AdapterPresence::ABSENT:
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case AdapterPresence::POWERED_OFF:
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// Chrome currently directs the user to system preferences
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// to grant bluetooth permission for this case, should we
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// do something similar ?
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// https://chromium-review.googlesource.com/c/chromium/src/+/2617129
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case AdapterPresence::UNAUTHORIZED:
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event_handler_.Run(content::BluetoothChooserEvent::CANCELLED, "");
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break;
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case AdapterPresence::POWERED_ON:
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rescan_ = true;
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break;
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}
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}
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void BluetoothChooser::ShowDiscoveryState(DiscoveryState state) {
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bool idle_state = false;
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switch (state) {
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case DiscoveryState::FAILED_TO_START:
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refreshing_ = false;
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event_handler_.Run(content::BluetoothChooserEvent::CANCELLED, "");
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return;
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case DiscoveryState::IDLE:
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refreshing_ = false;
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idle_state = true;
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break;
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case DiscoveryState::DISCOVERING:
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// The first time this state fires is due to a rescan triggering so set a
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// flag to ignore devices
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if (rescan_ && !refreshing_) {
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refreshing_ = true;
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} else {
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// The second time this state fires we are now safe to pick a device
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refreshing_ = false;
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}
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break;
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}
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bool prevent_default =
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api_web_contents_->Emit("select-bluetooth-device", GetDeviceList(),
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base::BindOnce(&OnDeviceChosen, event_handler_));
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if (!prevent_default && idle_state) {
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if (device_map_.empty()) {
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event_handler_.Run(content::BluetoothChooserEvent::CANCELLED, "");
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} else {
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auto it = device_map_.begin();
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auto device_id = it->first;
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event_handler_.Run(content::BluetoothChooserEvent::SELECTED, device_id);
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}
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}
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}
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void BluetoothChooser::AddOrUpdateDevice(const std::string& device_id,
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bool should_update_name,
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const std::u16string& device_name,
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bool is_gatt_connected,
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bool is_paired,
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int signal_strength_level) {
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if (refreshing_) {
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// If the list of bluetooth devices is currently being generated don't fire
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// an event
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return;
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}
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auto [iter, changed] = device_map_.try_emplace(device_id, device_name);
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if (!changed && should_update_name) {
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iter->second = device_name;
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changed = true;
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}
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if (changed) {
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// Emit a select-bluetooth-device handler to allow for user to listen for
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// bluetooth device found.
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bool prevent_default = api_web_contents_->Emit(
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"select-bluetooth-device", GetDeviceList(),
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base::BindOnce(&OnDeviceChosen, event_handler_));
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// If emit not implemented select first device that matches the filters
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// provided.
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if (!prevent_default) {
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event_handler_.Run(content::BluetoothChooserEvent::SELECTED, device_id);
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}
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}
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}
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std::vector<electron::BluetoothChooser::DeviceInfo>
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BluetoothChooser::GetDeviceList() {
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std::vector<electron::BluetoothChooser::DeviceInfo> vec;
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vec.reserve(device_map_.size());
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for (const auto& [device_id, device_name] : device_map_)
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vec.emplace_back(device_id, device_name);
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return vec;
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}
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} // namespace electron
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