void
IMEStateManager::SetIMEState(const IMEState& aState,
nsIContent* aContent,
nsIWidget* aWidget,
InputContextAction aAction)
{
NS_ENSURE_TRUE_VOID(aWidget);
InputContext oldContext = aWidget->GetInputContext();
InputContext context;
context.mIMEState = aState;
if (aContent && aContent->GetNameSpaceID() == kNameSpaceID_XHTML &&
(aContent->Tag() == nsGkAtoms::input ||
aContent->Tag() == nsGkAtoms::textarea)) {
if (aContent->Tag() != nsGkAtoms::textarea) {
// <input type=number> has an anonymous <input type=text> descendant
// that gets focus whenever anyone tries to focus the number control. We
// need to check if aContent is one of those anonymous text controls and,
// if so, use the number control instead:
nsIContent* content = aContent;
HTMLInputElement* inputElement =
HTMLInputElement::FromContentOrNull(aContent);
if (inputElement) {
HTMLInputElement* ownerNumberControl =
inputElement->GetOwnerNumberControl();
if (ownerNumberControl) {
content = ownerNumberControl; // an <input type=number>
}
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::type,
context.mHTMLInputType);
} else {
context.mHTMLInputType.Assign(nsGkAtoms::textarea->GetUTF16String());
}
if (Preferences::GetBool("dom.forms.inputmode", false)) {
aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::inputmode,
context.mHTMLInputInputmode);
}
aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::moz_action_hint,
context.mActionHint);
// if we don't have an action hint and return won't submit the form use "next"
if (context.mActionHint.IsEmpty() && aContent->Tag() == nsGkAtoms::input) {
bool willSubmit = false;
nsCOMPtr<nsIFormControl> control(do_QueryInterface(aContent));
mozilla::dom::Element* formElement = control->GetFormElement();
nsCOMPtr<nsIForm> form;
if (control) {
// is this a form and does it have a default submit element?
if ((form = do_QueryInterface(formElement)) &&
form->GetDefaultSubmitElement()) {
willSubmit = true;
// is this an html form and does it only have a single text input element?
} else if (formElement && formElement->Tag() == nsGkAtoms::form &&
formElement->IsHTML() &&
!static_cast<dom::HTMLFormElement*>(formElement)->
ImplicitSubmissionIsDisabled()) {
willSubmit = true;
}
}
context.mActionHint.Assign(
willSubmit ? (control->GetType() == NS_FORM_INPUT_SEARCH ?
NS_LITERAL_STRING("search") : NS_LITERAL_STRING("go")) :
(formElement ?
NS_LITERAL_STRING("next") : EmptyString()));
}
}
// XXX I think that we should use nsContentUtils::IsCallerChrome() instead
// of the process type.
if (aAction.mCause == InputContextAction::CAUSE_UNKNOWN &&
XRE_GetProcessType() != GeckoProcessType_Content) {
aAction.mCause = InputContextAction::CAUSE_UNKNOWN_CHROME;
}
aWidget->SetInputContext(context, aAction);
if (oldContext.mIMEState.mEnabled == context.mIMEState.mEnabled) {
return;
}
nsContentUtils::AddScriptRunner(
new IMEEnabledStateChangedEvent(context.mIMEState.mEnabled));
}
