mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-16 03:19:21 +01:00
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
// Copyright 2016 The Chromium Embedded Framework Authors. Portions copyright
|
|
// 2013 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 CEF_TESTS_CEFCLIENT_BROWSER_OSR_IME_HANDLER_WIN_H_
|
|
#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_IME_HANDLER_WIN_H_
|
|
#pragma once
|
|
|
|
#include <windows.h>
|
|
#include <vector>
|
|
|
|
#include "include/internal/cef_types_wrappers.h"
|
|
|
|
namespace client {
|
|
|
|
// Handles IME for the native parent window that hosts an off-screen browser.
|
|
// This object is only accessed on the CEF UI thread.
|
|
class OsrImeHandlerWin {
|
|
public:
|
|
explicit OsrImeHandlerWin(HWND hwnd);
|
|
virtual ~OsrImeHandlerWin();
|
|
|
|
// Retrieves whether or not there is an ongoing composition.
|
|
bool is_composing() const { return is_composing_; }
|
|
|
|
// Retrieves the input language from Windows and update it.
|
|
void SetInputLanguage();
|
|
|
|
// Creates the IME caret windows if required.
|
|
void CreateImeWindow();
|
|
|
|
// Destroys the IME caret windows.
|
|
void DestroyImeWindow();
|
|
|
|
// Cleans up the all resources attached to the given IMM32Manager object, and
|
|
// reset its composition status.
|
|
void CleanupComposition();
|
|
|
|
// Resets the composition status and cancels the ongoing composition.
|
|
void ResetComposition();
|
|
|
|
// Retrieves a composition result of the ongoing composition if it exists.
|
|
bool GetResult(LPARAM lparam, CefString& result);
|
|
|
|
// Retrieves the current composition status of the ongoing composition.
|
|
// Includes composition text, underline information and selection range in the
|
|
// composition text. IMM32 does not support char selection.
|
|
bool GetComposition(LPARAM lparam,
|
|
CefString& composition_text,
|
|
std::vector<CefCompositionUnderline>& underlines,
|
|
int& composition_start);
|
|
|
|
// Enables the IME attached to the given window.
|
|
virtual void EnableIME();
|
|
|
|
// Disables the IME attached to the given window.
|
|
virtual void DisableIME();
|
|
|
|
// Cancels an ongoing composition of the IME.
|
|
virtual void CancelIME();
|
|
|
|
// Updates the IME caret position of the given window.
|
|
void UpdateCaretPosition(int index);
|
|
|
|
// Updates the composition range. |selected_range| is the range of characters
|
|
// that have been selected. |character_bounds| is the bounds of each character
|
|
// in view device coordinates.
|
|
void ChangeCompositionRange(const CefRange& selection_range,
|
|
const std::vector<CefRect>& character_bounds);
|
|
|
|
// Updates the position of the IME windows.
|
|
void MoveImeWindow();
|
|
|
|
private:
|
|
// Retrieves the composition information.
|
|
void GetCompositionInfo(HIMC imm_context,
|
|
LPARAM lparam,
|
|
CefString& composition_text,
|
|
std::vector<CefCompositionUnderline>& underlines,
|
|
int& composition_start);
|
|
|
|
// Retrieves a string from the IMM.
|
|
bool GetString(HIMC imm_context, WPARAM lparam, int type, CefString& result);
|
|
|
|
// Represents whether or not there is an ongoing composition.
|
|
bool is_composing_;
|
|
|
|
// The current composition character range and its bounds.
|
|
std::vector<CefRect> composition_bounds_;
|
|
|
|
// The current input Language ID retrieved from Windows -
|
|
// used for processing language-specific operations in IME.
|
|
LANGID input_language_id_;
|
|
|
|
// Represents whether or not the current input context has created a system
|
|
// caret to set the position of its IME candidate window.
|
|
bool system_caret_;
|
|
|
|
// The rectangle of the input caret retrieved from a renderer process.
|
|
CefRect ime_rect_;
|
|
|
|
// The current cursor index in composition string.
|
|
int cursor_index_;
|
|
|
|
// The composition range in the string. This may be used to determine the
|
|
// offset in composition bounds.
|
|
CefRange composition_range_;
|
|
|
|
// Hwnd associated with this instance.
|
|
HWND hwnd_;
|
|
};
|
|
|
|
} // namespace client
|
|
|
|
#endif // CEF_TESTS_CEFCLIENT_BROWSER_OSR_IME_HANDLER_WIN_H_
|