3194
3195 BOOL AwtToolkit::TICloseTouchInputHandle(HTOUCHINPUT hTouchInput) {
3196 if (m_pCloseTouchInputHandle == NULL) {
3197 return FALSE;
3198 }
3199 return m_pCloseTouchInputHandle(hTouchInput);
3200 }
3201
3202 /*
3203 * The fuction intended for access to an IME API. It posts IME message to the queue and
3204 * waits untill the message processing is completed.
3205 *
3206 * On Windows 10 the IME may process the messages send via SenMessage() from other threads
3207 * when the IME is called by TranslateMessage(). This may cause an reentrancy issue when
3208 * the windows procedure processing the sent message call an IME function and leaves
3209 * the IME functionality in an unexpected state.
3210 * This function avoids reentrancy issue and must be used for sending of all IME messages
3211 * instead of SendMessage().
3212 */
3213 LRESULT AwtToolkit::InvokeInputMethodFunction(UINT msg, WPARAM wParam, LPARAM lParam) {
3214 CriticalSection::Lock lock(m_inputMethodLock);
3215 if (PostMessage(msg, wParam, lParam)) {
3216 ::WaitForSingleObject(m_inputMethodWaitEvent, INFINITE);
3217 return m_inputMethodData;
3218 }
3219 return 0;
3220 }
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3194
3195 BOOL AwtToolkit::TICloseTouchInputHandle(HTOUCHINPUT hTouchInput) {
3196 if (m_pCloseTouchInputHandle == NULL) {
3197 return FALSE;
3198 }
3199 return m_pCloseTouchInputHandle(hTouchInput);
3200 }
3201
3202 /*
3203 * The fuction intended for access to an IME API. It posts IME message to the queue and
3204 * waits untill the message processing is completed.
3205 *
3206 * On Windows 10 the IME may process the messages send via SenMessage() from other threads
3207 * when the IME is called by TranslateMessage(). This may cause an reentrancy issue when
3208 * the windows procedure processing the sent message call an IME function and leaves
3209 * the IME functionality in an unexpected state.
3210 * This function avoids reentrancy issue and must be used for sending of all IME messages
3211 * instead of SendMessage().
3212 */
3213 LRESULT AwtToolkit::InvokeInputMethodFunction(UINT msg, WPARAM wParam, LPARAM lParam) {
3214 /*
3215 * DND runs on the main thread. So it is necessary to use SendMessage() to call an IME
3216 * function once the DND is active; otherwise a hang is possible since DND may wait for
3217 * the IME completion.
3218 */
3219 if (isInDoDragDropLoop) {
3220 return SendMessage(msg, wParam, lParam);
3221 } else {
3222 CriticalSection::Lock lock(m_inputMethodLock);
3223 if (PostMessage(msg, wParam, lParam)) {
3224 ::WaitForSingleObject(m_inputMethodWaitEvent, INFINITE);
3225 return m_inputMethodData;
3226 }
3227 return 0;
3228 }
3229 }
3230
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