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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_ARC_INPUT_METHOD_MANAGER_INPUT_CONNECTION_IMPL_H_
#define CHROME_BROWSER_ASH_ARC_INPUT_METHOD_MANAGER_INPUT_CONNECTION_IMPL_H_
#include <memory>
#include <optional>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/timer/timer.h"
#include "chrome/browser/ash/arc/input_method_manager/arc_input_method_manager_bridge.h"
#include "chrome/browser/ash/input_method/input_method_engine.h"
#include "chromeos/ash/experiences/arc/mojom/input_method_manager.mojom-forward.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
namespace arc {
// The implementation of mojom::InputConnection interface. It's generated for
// each text field and accepts text edit commands from the ARC container.
class InputConnectionImpl : public mojom::InputConnection {
public:
InputConnectionImpl(ash::input_method::InputMethodEngine* ime_engine,
ArcInputMethodManagerBridge* imm_bridge,
int input_context_id);
InputConnectionImpl(const InputConnectionImpl&) = delete;
InputConnectionImpl& operator=(const InputConnectionImpl&) = delete;
~InputConnectionImpl() override;
// Binds this class to a passed pending remote.
void Bind(mojo::PendingRemote<mojom::InputConnection>* remote);
// Sends current text input state to the ARC container.
void UpdateTextInputState(bool is_input_state_update_requested);
// Gets current text input state.
mojom::TextInputStatePtr GetTextInputState(
bool is_input_state_update_requested) const;
// mojom::InputConnection overrides:
void CommitText(const std::u16string& text, int new_cursor_pos) override;
void DeleteSurroundingText(int before, int after) override;
void FinishComposingText() override;
void SetComposingText(
const std::u16string& text,
int new_cursor_pos,
const std::optional<gfx::Range>& new_selection_range) override;
void RequestTextInputState(
mojom::InputConnection::RequestTextInputStateCallback callback) override;
void SetSelection(const gfx::Range& new_selection_range) override;
void SendKeyEvent(std::unique_ptr<ui::KeyEvent> key_event) override;
void SetCompositionRange(const gfx::Range& new_composition_range) override;
private:
// Starts the timer to send new TextInputState.
// This method should be called before doing any IME operation to catch state
// update surely. Some implementations of TextInputClient are synchronous. If
// starting timer is after API call, the timer won't be cancelled.
void StartStateUpdateTimer();
void SendControlKeyEvent(const std::u16string& text);
const raw_ptr<ash::input_method::InputMethodEngine> ime_engine_; // Not owned
const raw_ptr<ArcInputMethodManagerBridge> imm_bridge_; // Not owned
const int input_context_id_;
mojo::Receiver<mojom::InputConnection> receiver_{this};
base::OneShotTimer state_update_timer_;
};
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_INPUT_METHOD_MANAGER_INPUT_CONNECTION_IMPL_H_
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