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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERMISSIONS_BLUETOOTH_CHOOSER_CONTROLLER_H_
#define COMPONENTS_PERMISSIONS_BLUETOOTH_CHOOSER_CONTROLLER_H_
#include <stddef.h>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "base/memory/weak_ptr.h"
#include "components/permissions/chooser_controller.h"
#include "content/public/browser/bluetooth_chooser.h"
namespace content {
class RenderFrameHost;
}
namespace permissions {
// 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.
class BluetoothChooserController : public ChooserController {
public:
BluetoothChooserController(
content::RenderFrameHost* owner,
const content::BluetoothChooser::EventHandler& event_handler,
std::u16string title);
BluetoothChooserController(const BluetoothChooserController&) = delete;
BluetoothChooserController& operator=(const BluetoothChooserController&) =
delete;
~BluetoothChooserController() override;
// ChooserController:
bool ShouldShowIconBeforeText() const override;
bool ShouldShowReScanButton() const override;
std::u16string GetNoOptionsText() const override;
std::u16string GetOkButtonLabel() const override;
std::pair<std::u16string, std::u16string> GetThrobberLabelAndTooltip()
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;
std::u16string GetOption(size_t index) const override;
void RefreshOptions() override;
void Select(const std::vector<size_t>& indices) override;
void Cancel() override;
void Close() 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 std::u16string& 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();
// Get a weak pointer to this controller.
base::WeakPtr<BluetoothChooserController> GetWeakPtr();
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, std::u16string> device_id_to_name_map_;
// Maps from device name to number of devices with that name.
std::unordered_map<std::u16string, int> device_name_counts_;
content::BluetoothChooser::EventHandler event_handler_;
base::WeakPtrFactory<BluetoothChooserController> weak_factory_{this};
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_BLUETOOTH_CHOOSER_CONTROLLER_H_
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