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::setFocusObject(QObject *object)
{
// ### fixme: On Windows 8.1, it has been observed that the Input context
// remains active when this happens resulting in a lock-up. Consecutive
// key events still have VK_PROCESSKEY set and are thus ignored.
if (m_compositionContext.isComposing)
imeNotifyCancelComposition(m_compositionContext.hwnd);
const QWindow *window = QGuiApplication::focusWindow();
if (object && window && window->handle()) {
QWindowsWindow *platformWindow = QWindowsWindow::baseWindowOf(window);
if (inputMethodAccepted()) {
// Re-enable IME by associating default context saved on first disabling.
if (platformWindow->testFlag(QWindowsWindow::InputMethodDisabled)) {
ImmAssociateContext(platformWindow->handle(), QWindowsInputContext::m_defaultContext);
platformWindow->clearFlag(QWindowsWindow::InputMethodDisabled);
}
} else {
// Disable IME by associating 0 context. Store context first time.
if (!platformWindow->testFlag(QWindowsWindow::InputMethodDisabled)) {
const HIMC oldImC = ImmAssociateContext(platformWindow->handle(), 0);
platformWindow->setFlag(QWindowsWindow::InputMethodDisabled);
if (!QWindowsInputContext::m_defaultContext && oldImC)
QWindowsInputContext::m_defaultContext = oldImC;
}
}
}
}
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();
}
