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iOS: be more specific about IM callbacks to iOS

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No need to call textWillChange all the time if the text is
really not changing. And report that selectionWillChange
when Qt reports that it has changed.

Change-Id: I7bd9f540cd9302c37888926a6152b803cc871ccb
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
This commit is contained in:
Richard Moe Gustavsen 2014-01-31 15:28:07 +01:00 committed by The Qt Project
parent f9a994e707
commit 865ef95107
1 changed files with 16 additions and 11 deletions
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27
src/plugins/platforms/ios/quiview_textinput.mm
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@ -154,27 +154,32 @@ Q_GLOBAL_STATIC(StaticVariables, staticVariables);
- (void)updateInputMethodWithQuery:(Qt::InputMethodQueries)query
{
// TODO: check what changed, and perhaps update delegate if the text was
// changed from somewhere other than this plugin....
// Note: This function is called both when as a result of the application changing the
// input, but also (and most commonly) as a response to us sending QInputMethodQueryEvents.
// Because of the latter, we cannot call textWill/DidChange here, as that will confuse
// iOS IM handling, and e.g stop spellchecking from working.
Q_UNUSED(query);
QObject *focusObject = QGuiApplication::focusObject();
if (!focusObject)
return;
if (!m_inSendEventToFocusObject)
[self.inputDelegate textWillChange:id<UITextInput>(self)];
if (!m_inSendEventToFocusObject) {
if (query & (Qt::ImCursorPosition | Qt::ImAnchorPosition))
[self.inputDelegate selectionWillChange:id<UITextInput>(self)];
if (query & Qt::ImSurroundingText)
[self.inputDelegate textWillChange:id<UITextInput>(self)];
}
// Note that we ignore \a query, and instead update using Qt::ImQueryInput. This enables us to just
// store the event without copying out the result from the event each time. Besides, we seem to be
// called with Qt::ImQueryInput when only changing selection, and always if typing text. So there would
// not be any performance gain by only updating \a query.
staticVariables()->inputMethodQueryEvent = QInputMethodQueryEvent(Qt::ImQueryInput);
QCoreApplication::sendEvent(focusObject, &staticVariables()->inputMethodQueryEvent);
if (!m_inSendEventToFocusObject)
[self.inputDelegate textDidChange:id<UITextInput>(self)];
if (!m_inSendEventToFocusObject) {
if (query & (Qt::ImCursorPosition | Qt::ImAnchorPosition))
[self.inputDelegate selectionDidChange:id<UITextInput>(self)];
if (query & Qt::ImSurroundingText)
[self.inputDelegate textDidChange:id<UITextInput>(self)];
}
}
- (void)sendEventToFocusObject:(QEvent &)e