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// Copyright 2019 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_SCANNING_PROMPT_CONTROLLER_H_
#define COMPONENTS_PERMISSIONS_BLUETOOTH_SCANNING_PROMPT_CONTROLLER_H_
#include <stddef.h>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "components/permissions/chooser_controller.h"
#include "content/public/browser/bluetooth_scanning_prompt.h"
namespace content {
class RenderFrameHost;
}
namespace permissions {
// BluetoothScanningPromptController is a prompt that presents a list of
// Bluetooth device names. It can be used by Bluetooth Scanning API to
// show example nearby Bluetooth devices to user.
class BluetoothScanningPromptController : public ChooserController {
public:
BluetoothScanningPromptController(
content::RenderFrameHost* owner,
const content::BluetoothScanningPrompt::EventHandler& event_handler,
std::u16string title);
BluetoothScanningPromptController(const BluetoothScanningPromptController&) =
delete;
BluetoothScanningPromptController& operator=(
const BluetoothScanningPromptController&) = delete;
~BluetoothScanningPromptController() override;
// ChooserController:
bool ShouldShowHelpButton() const override;
std::u16string GetNoOptionsText() const override;
std::u16string GetOkButtonLabel() const override;
std::u16string GetCancelButtonLabel() const override;
std::pair<std::u16string, std::u16string> GetThrobberLabelAndTooltip()
const override;
bool BothButtonsAlwaysEnabled() const override;
bool TableViewAlwaysDisabled() const override;
size_t NumOptions() const override;
std::u16string GetOption(size_t index) const override;
void Select(const std::vector<size_t>& indices) override;
void Cancel() override;
void Close() override;
void OpenHelpCenterUrl() const override;
// Shows a new device in the permission prompt or updates its information.
void AddOrUpdateDevice(const std::string& device_id,
bool should_update_name,
const std::u16string& device_name);
// Called when |event_handler_| is no longer valid and should not be used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<BluetoothScanningPromptController> GetWeakPtr();
private:
std::vector<std::string> device_ids_;
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::BluetoothScanningPrompt::EventHandler event_handler_;
base::WeakPtrFactory<BluetoothScanningPromptController> weak_factory_{this};
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_BLUETOOTH_SCANNING_PROMPT_CONTROLLER_H_
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