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KeyEventSink.cpp
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KeyEventSink.cpp
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#include "stdafx.h"
#include "WeaselIPC.h"
#include "WeaselTSF.h"
#include "KeyEvent.h"
void WeaselTSF::_ProcessKeyEvent(WPARAM wParam, LPARAM lParam, BOOL *pfEaten)
{
if (!_IsKeyboardOpen())
return;
_EnsureServerConnected();
weasel::KeyEvent ke;
GetKeyboardState(_lpbKeyState);
if (!ConvertKeyEvent(wParam, lParam, _lpbKeyState, ke))
{
/* Unknown key event */
*pfEaten = FALSE;
}
else
{
*pfEaten = (BOOL) m_client.ProcessKeyEvent(ke);
}
}
STDAPI WeaselTSF::OnSetFocus(BOOL fForeground)
{
if (fForeground)
m_client.FocusIn();
else
m_client.FocusOut();
return S_OK;
}
/* Some apps sends strange OnTestKeyDown/OnKeyDown combinations:
* Some sends OnKeyDown() only. (QQ2012)
* Some sends multiple OnTestKeyDown() for a single key event. (MS WORD 2010 x64)
*
* We assume every key event will eventually cause a OnKeyDown() call.
* We use _fTestKeyDownPending to omit multiple OnTestKeyDown() calls,
* and for OnKeyDown() to check if the key has already been sent to the server.
*/
STDAPI WeaselTSF::OnTestKeyDown(ITfContext *pContext, WPARAM wParam, LPARAM lParam, BOOL *pfEaten)
{
if (_fTestKeyDownPending)
{
*pfEaten = TRUE;
return S_OK;
}
_ProcessKeyEvent(wParam, lParam, pfEaten);
_UpdateComposition(pContext);
if (*pfEaten)
_fTestKeyDownPending = TRUE;
return S_OK;
}
STDAPI WeaselTSF::OnKeyDown(ITfContext *pContext, WPARAM wParam, LPARAM lParam, BOOL *pfEaten)
{
if (_fTestKeyDownPending)
{
_fTestKeyDownPending = FALSE;
*pfEaten = TRUE;
}
else
{
_ProcessKeyEvent(wParam, lParam, pfEaten);
_UpdateComposition(pContext);
}
return S_OK;
}
STDAPI WeaselTSF::OnTestKeyUp(ITfContext *pContext, WPARAM wParam, LPARAM lParam, BOOL *pfEaten)
{
if (_fTestKeyUpPending)
{
*pfEaten = TRUE;
return S_OK;
}
_ProcessKeyEvent(wParam, lParam, pfEaten);
_UpdateComposition(pContext);
if (*pfEaten)
_fTestKeyUpPending = TRUE;
return S_OK;
}
STDAPI WeaselTSF::OnKeyUp(ITfContext *pContext, WPARAM wParam, LPARAM lParam, BOOL *pfEaten)
{
if (_fTestKeyUpPending)
{
_fTestKeyUpPending = FALSE;
*pfEaten = TRUE;
}
else
{
_ProcessKeyEvent(wParam, lParam, pfEaten);
_UpdateComposition(pContext);
}
return S_OK;
}
STDAPI WeaselTSF::OnPreservedKey(ITfContext *pContext, REFGUID rguid, BOOL *pfEaten)
{
*pfEaten = FALSE;
return S_OK;
}
BOOL WeaselTSF::_InitKeyEventSink()
{
ITfKeystrokeMgr *pKeystrokeMgr;
HRESULT hr;
if (_pThreadMgr->QueryInterface(IID_ITfKeystrokeMgr, (void **) &pKeystrokeMgr) != S_OK)
return FALSE;
hr = pKeystrokeMgr->AdviseKeyEventSink(_tfClientId, (ITfKeyEventSink *) this, TRUE);
pKeystrokeMgr->Release();
return (hr == S_OK);
}
void WeaselTSF::_UninitKeyEventSink()
{
ITfKeystrokeMgr *pKeystrokeMgr;
if (_pThreadMgr->QueryInterface(IID_ITfKeystrokeMgr, (void **) &pKeystrokeMgr) != S_OK)
return;
pKeystrokeMgr->UnadviseKeyEventSink(_tfClientId);
pKeystrokeMgr->Release();
}
BOOL WeaselTSF::_InitPreservedKey()
{
return TRUE;
}
void WeaselTSF::_UninitPreservedKey()
{
}