bool QWindowsInputContext::endComposition(HWND hwnd)
{
if (QWindowsContext::verboseInputMethods)
qDebug() << __FUNCTION__ << m_endCompositionRecursionGuard << hwnd;
// Googles Pinyin Input Method likes to call endComposition again
// when we call notifyIME with CPS_CANCEL, so protect ourselves
// against that.
if (m_endCompositionRecursionGuard || m_compositionContext.hwnd != hwnd)
return false;
QObject *fo = qApp->focusObject();
if (!fo)
return false;
m_endCompositionRecursionGuard = true;
imeNotifyCancelComposition(m_compositionContext.hwnd);
if (m_compositionContext.isComposing) {
QInputMethodEvent event;
QCoreApplication::sendEvent(fo, &event);
}
doneContext();
m_endCompositionRecursionGuard = false;
return true;
}
void QWindowsInputContext::initContext(HWND hwnd)
{
if (m_compositionContext.hwnd)
doneContext();
m_compositionContext.hwnd = hwnd;
// Create a hidden caret which is kept at the microfocus
// position in update(). This is important for some
// Chinese input methods.
m_compositionContext.haveCaret = CreateCaret(hwnd, 0, 1, 1);
HideCaret(hwnd);
update(Qt::ImQueryAll);
m_compositionContext.isComposing = false;
m_compositionContext.position = 0;
}
void QWindowsInputContext::reset()
{
QPlatformInputContext::reset();
if (!m_compositionContext.hwnd)
return;
qCDebug(lcQpaInputMethods) << __FUNCTION__;
if (m_compositionContext.isComposing && !m_compositionContext.focusObject.isNull()) {
QInputMethodEvent event;
if (!m_compositionContext.composition.isEmpty())
event.setCommitString(m_compositionContext.composition);
QCoreApplication::sendEvent(m_compositionContext.focusObject, &event);
endContextComposition();
}
imeNotifyCancelComposition(m_compositionContext.hwnd);
doneContext();
}
void QWindowsInputContext::reset()
{
QPlatformInputContext::reset();
if (!m_compositionContext.hwnd)
return;
QObject *fo = qApp->focusObject();
if (QWindowsContext::verboseInputMethods)
qDebug() << __FUNCTION__<< fo;
if (!fo)
return;
if (m_compositionContext.isComposing) {
QInputMethodEvent event;
if (!m_compositionContext.composition.isEmpty())
event.setCommitString(m_compositionContext.composition);
QCoreApplication::sendEvent(fo, &event);
endContextComposition();
}
imeNotifyCancelComposition(m_compositionContext.hwnd);
doneContext();
}