// 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
void
IMEHandler::OnDestroyWindow(nsWindow* aWindow)
{
#ifdef NS_ENABLE_TSF
// We need to do nothing here for TSF. Just restore the default context
// if it's been disassociated.
if (!sIsInTSFMode) {
// MSDN says we need to set IS_DEFAULT to avoid memory leak when we use
// SetInputScopes API. Use an empty string to do this.
SetInputScopeForIMM32(aWindow, EmptyString());
}
#endif // #ifdef NS_ENABLE_TSF
AssociateIMEContext(aWindow, true);
}
// 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;
}
