// static
void
IMEHandler::SetInputContext(nsWindow* aWindow, InputContext& aInputContext)
{
// FYI: If there is no composition, this call will do nothing.
NotifyIME(aWindow, REQUEST_TO_COMMIT_COMPOSITION);
// Assume that SetInputContext() is called only when aWindow has focus.
sPluginHasFocus = (aInputContext.mIMEState.mEnabled == IMEState::PLUGIN);
bool enable = IsIMEEnabled(aInputContext);
bool adjustOpenState = (enable &&
aInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE);
bool open = (adjustOpenState &&
aInputContext.mIMEState.mOpen == IMEState::OPEN);
aInputContext.mNativeIMEContext = nullptr;
#ifdef NS_ENABLE_TSF
// Note that even while a plugin has focus, we need to notify TSF of that.
if (sIsInTSFMode) {
nsTextStore::SetInputContext(aInputContext);
if (IsTSFAvailable()) {
aInputContext.mNativeIMEContext = nsTextStore::GetTextStore();
}
// Currently, nsTextStore doesn't set focus to keyboard disabled document.
// Therefore, we still need to perform the following legacy code.
}
#endif // #ifdef NS_ENABLE_TSF
nsIMEContext IMEContext(aWindow->GetWindowHandle());
if (enable) {
IMEContext.AssociateDefaultContext();
if (!aInputContext.mNativeIMEContext) {
aInputContext.mNativeIMEContext = static_cast<void*>(IMEContext.get());
}
} else if (!aWindow->Destroyed()) {
// Don't disassociate the context after the window is destroyed.
IMEContext.Disassociate();
if (!aInputContext.mNativeIMEContext) {
// The old InputContext must store the default IMC.
aInputContext.mNativeIMEContext =
aWindow->GetInputContext().mNativeIMEContext;
}
}
if (adjustOpenState) {
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
nsTextStore::SetIMEOpenState(open);
return;
}
#endif // #ifdef NS_ENABLE_TSF
IMEContext.SetOpenState(open);
}
}
// static
nsresult
IMEHandler::NotifyIME(nsWindow* aWindow,
const IMENotification& aIMENotification)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
switch (aIMENotification.mMessage) {
case NOTIFY_IME_OF_SELECTION_CHANGE:
return nsTextStore::OnSelectionChange();
case NOTIFY_IME_OF_TEXT_CHANGE:
return nsTextStore::OnTextChange(aIMENotification);
case NOTIFY_IME_OF_FOCUS:
return nsTextStore::OnFocusChange(true, aWindow,
aWindow->GetInputContext().mIMEState);
case NOTIFY_IME_OF_BLUR:
return nsTextStore::OnFocusChange(false, aWindow,
aWindow->GetInputContext().mIMEState);
case REQUEST_TO_COMMIT_COMPOSITION:
if (nsTextStore::IsComposingOn(aWindow)) {
nsTextStore::CommitComposition(false);
}
return NS_OK;
case REQUEST_TO_CANCEL_COMPOSITION:
if (nsTextStore::IsComposingOn(aWindow)) {
nsTextStore::CommitComposition(true);
}
return NS_OK;
case NOTIFY_IME_OF_POSITION_CHANGE:
return nsTextStore::OnLayoutChange();
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
}
#endif //NS_ENABLE_TSF
switch (aIMENotification.mMessage) {
case REQUEST_TO_COMMIT_COMPOSITION:
nsIMM32Handler::CommitComposition(aWindow);
return NS_OK;
case REQUEST_TO_CANCEL_COMPOSITION:
nsIMM32Handler::CancelComposition(aWindow);
return NS_OK;
case NOTIFY_IME_OF_POSITION_CHANGE:
case NOTIFY_IME_OF_COMPOSITION_UPDATE:
nsIMM32Handler::OnUpdateComposition(aWindow);
return NS_OK;
#ifdef NS_ENABLE_TSF
case NOTIFY_IME_OF_BLUR:
// If a plugin gets focus while TSF has focus, we need to notify TSF of
// the blur.
if (nsTextStore::ThinksHavingFocus()) {
return nsTextStore::OnFocusChange(false, aWindow,
aWindow->GetInputContext().mIMEState);
}
return NS_ERROR_NOT_IMPLEMENTED;
#endif //NS_ENABLE_TSF
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
}
// static
bool
IMEHandler::ProcessMessage(nsWindow* aWindow, UINT aMessage,
WPARAM& aWParam, LPARAM& aLParam,
MSGResult& aResult)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
nsTextStore::ProcessMessage(aWindow, aMessage, aWParam, aLParam, aResult);
if (aResult.mConsumed) {
return true;
}
// If we don't support IMM in TSF mode, we don't use nsIMM32Handler.
if (!sIsIMMEnabled) {
return false;
}
// IME isn't implemented with IMM, nsIMM32Handler shouldn't handle any
// messages.
if (!nsTextStore::IsIMM_IME()) {
return false;
}
}
#endif // #ifdef NS_ENABLE_TSF
return nsIMM32Handler::ProcessMessage(aWindow, aMessage, aWParam, aLParam,
aResult);
}
// static
bool
IMEHandler::ProcessMessage(nsWindow* aWindow, UINT aMessage,
WPARAM& aWParam, LPARAM& aLParam,
MSGResult& aResult)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
if (aMessage == WM_IME_SETCONTEXT) {
// If a windowless plugin had focus and IME was handled on it, composition
// window was set the position. After that, even in TSF mode, WinXP keeps
// to use composition window at the position if the active IME is not
// aware TSF. For avoiding this issue, we need to hide the composition
// window here.
if (aWParam) {
aLParam &= ~ISC_SHOWUICOMPOSITIONWINDOW;
}
return false;
}
if (aMessage == WM_USER_TSF_TEXTCHANGE) {
nsTextStore::OnTextChangeMsg();
aResult.mConsumed = true;
return true;
}
return false;
}
#endif // #ifdef NS_ENABLE_TSF
return nsIMM32Handler::ProcessMessage(aWindow, aMessage, aWParam, aLParam,
aResult);
}
// static
void
IMEHandler::SetInputContext(nsWindow* aWindow,
InputContext& aInputContext,
const InputContextAction& aAction)
{
// FYI: If there is no composition, this call will do nothing.
NotifyIME(aWindow, REQUEST_TO_COMMIT_COMPOSITION);
// Assume that SetInputContext() is called only when aWindow has focus.
sPluginHasFocus = (aInputContext.mIMEState.mEnabled == IMEState::PLUGIN);
bool enable = IsIMEEnabled(aInputContext);
bool adjustOpenState = (enable &&
aInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE);
bool open = (adjustOpenState &&
aInputContext.mIMEState.mOpen == IMEState::OPEN);
aInputContext.mNativeIMEContext = nullptr;
#ifdef NS_ENABLE_TSF
// Note that even while a plugin has focus, we need to notify TSF of that.
if (sIsInTSFMode) {
nsTextStore::SetInputContext(aWindow, aInputContext, aAction);
if (IsTSFAvailable()) {
aInputContext.mNativeIMEContext = nsTextStore::GetTextStore();
if (adjustOpenState) {
nsTextStore::SetIMEOpenState(open);
}
return;
}
} else {
// Set at least InputScope even when TextStore is not available.
SetInputScopeForIMM32(aWindow, aInputContext.mHTMLInputType);
}
#endif // #ifdef NS_ENABLE_TSF
nsIMEContext IMEContext(aWindow->GetWindowHandle());
if (enable) {
IMEContext.AssociateDefaultContext();
if (!aInputContext.mNativeIMEContext) {
aInputContext.mNativeIMEContext = static_cast<void*>(IMEContext.get());
}
} else if (!aWindow->Destroyed()) {
// Don't disassociate the context after the window is destroyed.
IMEContext.Disassociate();
if (!aInputContext.mNativeIMEContext) {
// The old InputContext must store the default IMC.
aInputContext.mNativeIMEContext =
aWindow->GetInputContext().mNativeIMEContext;
}
}
if (adjustOpenState) {
IMEContext.SetOpenState(open);
}
}
// static
bool
IMEHandler::ProcessRawKeyMessage(const MSG& aMsg)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::ProcessRawKeyMessage(aMsg);
}
#endif // #ifdef NS_ENABLE_TSF
return false; // noting to do in IMM mode.
}
// static
bool
IMEHandler::CanOptimizeKeyAndIMEMessages()
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::CanOptimizeKeyAndIMEMessages();
}
#endif // #ifdef NS_ENABLE_TSF
return nsIMM32Handler::CanOptimizeKeyAndIMEMessages();
}
// static
nsIMEUpdatePreference
IMEHandler::GetUpdatePreference()
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::GetIMEUpdatePreference();
}
#endif //NS_ENABLE_TSF
return nsIMEUpdatePreference(false, false);
}
// static
bool
IMEHandler::IsComposingOn(nsWindow* aWindow)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::IsComposingOn(aWindow);
}
#endif // #ifdef NS_ENABLE_TSF
return nsIMM32Handler::IsComposingOn(aWindow);
}
// static
bool
IMEHandler::GetOpenState(nsWindow* aWindow)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::GetIMEOpenState();
}
#endif //NS_ENABLE_TSF
nsIMEContext IMEContext(aWindow->GetWindowHandle());
return IMEContext.GetOpenState();
}
// static
nsresult
IMEHandler::NotifyIMEOfTextChange(uint32_t aStart,
uint32_t aOldEnd,
uint32_t aNewEnd)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
return nsTextStore::OnTextChange(aStart, aOldEnd, aNewEnd);
}
#endif //NS_ENABLE_TSF
return NS_ERROR_NOT_IMPLEMENTED;
}
// static
bool
IMEHandler::ProcessMessage(nsWindow* aWindow, UINT aMessage,
WPARAM& aWParam, LPARAM& aLParam,
LRESULT* aRetValue, bool& aEatMessage)
{
#ifdef NS_ENABLE_TSF
if (IsTSFAvailable()) {
if (aMessage == WM_USER_TSF_TEXTCHANGE) {
nsTextStore::OnTextChangeMsg();
aEatMessage = true;
return true;
}
return false;
}
#endif // #ifdef NS_ENABLE_TSF
return nsIMM32Handler::ProcessMessage(aWindow, aMessage, aWParam, aLParam,
aRetValue, aEatMessage);
}
// static
void
IMEHandler::SetInputContext(nsWindow* aWindow,
InputContext& aInputContext,
const InputContextAction& aAction)
{
// FYI: If there is no composition, this call will do nothing.
NotifyIME(aWindow, IMENotification(REQUEST_TO_COMMIT_COMPOSITION));
const InputContext& oldInputContext = aWindow->GetInputContext();
// Assume that SetInputContext() is called only when aWindow has focus.
sPluginHasFocus = (aInputContext.mIMEState.mEnabled == IMEState::PLUGIN);
bool enable = WinUtils::IsIMEEnabled(aInputContext);
bool adjustOpenState = (enable &&
aInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE);
bool open = (adjustOpenState &&
aInputContext.mIMEState.mOpen == IMEState::OPEN);
aInputContext.mNativeIMEContext = nullptr;
#ifdef NS_ENABLE_TSF
// Note that even while a plugin has focus, we need to notify TSF of that.
if (sIsInTSFMode) {
nsTextStore::SetInputContext(aWindow, aInputContext, aAction);
if (IsTSFAvailable()) {
aInputContext.mNativeIMEContext = nsTextStore::GetTextStore();
if (sIsIMMEnabled) {
// Associate IME context for IMM-IMEs.
AssociateIMEContext(aWindow, enable);
} else if (oldInputContext.mIMEState.mEnabled == IMEState::PLUGIN) {
// Disassociate the IME context from the window when plugin loses focus
// in pure TSF mode.
AssociateIMEContext(aWindow, false);
}
if (adjustOpenState) {
nsTextStore::SetIMEOpenState(open);
}
return;
}
} else {
// Set at least InputScope even when TextStore is not available.
SetInputScopeForIMM32(aWindow, aInputContext.mHTMLInputType);
}
#endif // #ifdef NS_ENABLE_TSF
AssociateIMEContext(aWindow, enable);
nsIMEContext IMEContext(aWindow->GetWindowHandle());
if (adjustOpenState) {
IMEContext.SetOpenState(open);
}
if (aInputContext.mNativeIMEContext) {
return;
}
// The old InputContext must store the default IMC or old TextStore.
// When IME context is disassociated from the window, use it.
aInputContext.mNativeIMEContext = enable ?
static_cast<void*>(IMEContext.get()) : oldInputContext.mNativeIMEContext;
}