mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
141 lines
4.0 KiB
C++
141 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef WinIMEHandler_h_
|
|
#define WinIMEHandler_h_
|
|
|
|
#include "nscore.h"
|
|
#include "nsEvent.h"
|
|
#include "nsIWidget.h"
|
|
#include <windows.h>
|
|
|
|
#define NS_WM_IMEFIRST WM_IME_SETCONTEXT
|
|
#define NS_WM_IMELAST WM_IME_KEYUP
|
|
|
|
class nsWindow;
|
|
|
|
namespace mozilla {
|
|
namespace widget {
|
|
|
|
/**
|
|
* IMEHandler class is a mediator class. On Windows, there are two IME API
|
|
* sets: One is IMM which is legacy API set. The other is TSF which is modern
|
|
* API set. By using this class, non-IME handler classes don't need to worry
|
|
* that we're in which mode.
|
|
*/
|
|
class IMEHandler MOZ_FINAL
|
|
{
|
|
public:
|
|
static void Initialize();
|
|
static void Terminate();
|
|
|
|
/**
|
|
* Returns TSF related native data.
|
|
*/
|
|
static void* GetNativeData(uint32_t aDataType);
|
|
|
|
/**
|
|
* Returns true if the context or IME state is enabled. Otherwise, false.
|
|
*/
|
|
static bool IsIMEEnabled(const InputContext& aInputContext);
|
|
static bool IsIMEEnabled(IMEState::Enabled aIMEState);
|
|
|
|
/**
|
|
* ProcessRawKeyMessage() message is called before calling TranslateMessage()
|
|
* and DispatchMessage(). If this returns true, the message is consumed.
|
|
* Then, caller must not perform TranslateMessage() nor DispatchMessage().
|
|
*/
|
|
static bool ProcessRawKeyMessage(const MSG& aMsg);
|
|
|
|
/**
|
|
* When the message is not needed to handle anymore by the caller, this
|
|
* returns true. Otherwise, false.
|
|
* Additionally, if aEatMessage is true, the caller shouldn't call next
|
|
* wndproc anymore.
|
|
*/
|
|
static bool ProcessMessage(nsWindow* aWindow, UINT aMessage,
|
|
WPARAM& aWParam, LPARAM& aLParam,
|
|
LRESULT* aRetValue, bool& aEatMessage);
|
|
|
|
/**
|
|
* When there is a composition, returns true. Otherwise, false.
|
|
*/
|
|
static bool IsComposing();
|
|
|
|
/**
|
|
* When there is a composition and it's in the window, returns true.
|
|
* Otherwise, false.
|
|
*/
|
|
static bool IsComposingOn(nsWindow* aWindow);
|
|
|
|
/**
|
|
* Notifies IME of the notification (a request or an event).
|
|
*/
|
|
static nsresult NotifyIME(nsWindow* aWindow,
|
|
NotificationToIME aNotification);
|
|
|
|
/**
|
|
* Notifies IME of text change in the focused editable content.
|
|
*/
|
|
static nsresult NotifyIMEOfTextChange(uint32_t aStart,
|
|
uint32_t aOldEnd,
|
|
uint32_t aNewEnd);
|
|
|
|
/**
|
|
* Returns update preferences.
|
|
*/
|
|
static nsIMEUpdatePreference GetUpdatePreference();
|
|
|
|
/**
|
|
* Returns IME open state on the window.
|
|
*/
|
|
static bool GetOpenState(nsWindow* aWindow);
|
|
|
|
/**
|
|
* Called when the window is destroying.
|
|
*/
|
|
static void OnDestroyWindow(nsWindow* aWindow);
|
|
|
|
/**
|
|
* Called when nsIWidget::SetInputContext() is called before the window's
|
|
* InputContext is modified actually.
|
|
*/
|
|
static void SetInputContext(nsWindow* aWindow,
|
|
InputContext& aInputContext,
|
|
const InputContextAction& aAction);
|
|
|
|
/**
|
|
* Called when the window is created.
|
|
*/
|
|
static void InitInputContext(nsWindow* aWindow, InputContext& aInputContext);
|
|
|
|
/**
|
|
* "Kakutei-Undo" of ATOK or WXG (both of them are Japanese IME) causes
|
|
* strange WM_KEYDOWN/WM_KEYUP/WM_CHAR message pattern. So, when this
|
|
* returns true, the caller needs to be careful for processing the messages.
|
|
*/
|
|
static bool IsDoingKakuteiUndo(HWND aWnd);
|
|
|
|
#ifdef DEBUG
|
|
/**
|
|
* Returns true when current keyboard layout has IME. Otherwise, false.
|
|
*/
|
|
static bool CurrentKeyboardLayoutHasIME();
|
|
#endif // #ifdef DEBUG
|
|
|
|
private:
|
|
#ifdef NS_ENABLE_TSF
|
|
static bool sIsInTSFMode;
|
|
static bool sPluginHasFocus;
|
|
|
|
static bool IsTSFAvailable() { return (sIsInTSFMode && !sPluginHasFocus); }
|
|
#endif // #ifdef NS_ENABLE_TSF
|
|
};
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|
|
|
|
#endif // #ifndef WinIMEHandler_h_
|