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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_BLUETOOTH_BLUETOOTH_CHOOSER_CONTROLLER_H_
#define CHROME_BROWSER_UI_BLUETOOTH_BLUETOOTH_CHOOSER_CONTROLLER_H_
#include <stddef.h>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "base/macros.h"
#include "chrome/browser/chooser_controller/chooser_controller.h"
#include "content/public/browser/bluetooth_chooser.h"
// BluetoothChooserController is a chooser that presents a list of
// Bluetooth device names, which come from |bluetooth_chooser_desktop_|.
// It can be used by WebBluetooth API to get the user's permission to
// access a Bluetooth device. It is owned by ChooserBubbleDelegate.
class BluetoothChooserController : public ChooserController {
public:
BluetoothChooserController(
content::RenderFrameHost* owner,
const content::BluetoothChooser::EventHandler& event_handler);
~BluetoothChooserController() override;
// ChooserController:
bool ShouldShowIconBeforeText() const override;
base::string16 GetNoOptionsText() const override;
base::string16 GetOkButtonLabel() const override;
size_t NumOptions() const override;
int GetSignalStrengthLevel(size_t index) const override;
bool IsConnected(size_t index) const override;
bool IsPaired(size_t index) const override;
base::string16 GetOption(size_t index) const override;
void RefreshOptions() override;
void OpenAdapterOffHelpUrl() const override;
base::string16 GetStatus() const override;
void Select(const std::vector<size_t>& indices) override;
void Cancel() override;
void Close() override;
void OpenHelpCenterUrl() const override;
// Update the state of the Bluetooth adapter.
void OnAdapterPresenceChanged(
content::BluetoothChooser::AdapterPresence presence);
// Update the Bluetooth discovery state and let the user know whether
// discovery is happening.
void OnDiscoveryStateChanged(content::BluetoothChooser::DiscoveryState state);
// Shows a new device in the chooser or updates its information.
// The range of |signal_strength_level| is -1 to 4 inclusively.
void AddOrUpdateDevice(const std::string& device_id,
bool should_update_name,
const base::string16& device_name,
bool is_gatt_connected,
bool is_paired,
int signal_strength_level);
// Tells the chooser that a device is no longer available.
void RemoveDevice(const std::string& device_id);
// Called when |event_handler_| is no longer valid and should not be used
// any more.
void ResetEventHandler();
private:
struct BluetoothDeviceInfo {
std::string id;
int signal_strength_level;
bool is_connected;
bool is_paired;
};
// Clears |device_names_and_ids_| and |device_name_counts_|. Called when
// Bluetooth adapter is turned on or off, or when re-scan happens.
void ClearAllDevices();
std::vector<BluetoothDeviceInfo> devices_;
std::unordered_map<std::string, base::string16> device_id_to_name_map_;
// Maps from device name to number of devices with that name.
std::unordered_map<base::string16, int> device_name_counts_;
content::BluetoothChooser::EventHandler event_handler_;
base::string16 status_text_;
DISALLOW_COPY_AND_ASSIGN(BluetoothChooserController);
};
#endif // CHROME_BROWSER_UI_BLUETOOTH_BLUETOOTH_CHOOSER_CONTROLLER_H_
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