diff options
Diffstat (limited to 'src/plugins/platforms/ios/qiosinputcontext.mm')
-rw-r--r-- | src/plugins/platforms/ios/qiosinputcontext.mm | 156 |
1 files changed, 148 insertions, 8 deletions
diff --git a/src/plugins/platforms/ios/qiosinputcontext.mm b/src/plugins/platforms/ios/qiosinputcontext.mm index d430589037..0e43429015 100644 --- a/src/plugins/platforms/ios/qiosinputcontext.mm +++ b/src/plugins/platforms/ios/qiosinputcontext.mm @@ -48,7 +48,12 @@ @public QIOSInputContext *m_context; BOOL m_keyboardVisible; + BOOL m_keyboardVisibleAndDocked; QRectF m_keyboardRect; + QRectF m_keyboardEndRect; + NSTimeInterval m_duration; + UIViewAnimationCurve m_curve; + UIViewController *m_viewController; } @end @@ -60,8 +65,30 @@ if (self) { m_context = context; m_keyboardVisible = NO; - // After the keyboard became undockable (iOS5), UIKeyboardWillShow/UIKeyboardWillHide - // no longer works for all cases. So listen to keyboard frame changes instead: + m_keyboardVisibleAndDocked = NO; + m_duration = 0; + m_curve = UIViewAnimationCurveEaseOut; + m_viewController = 0; + + if (isQtApplication()) { + // Get the root view controller that is on the same screen as the keyboard: + for (UIWindow *uiWindow in [[UIApplication sharedApplication] windows]) { + if (uiWindow.screen == [UIScreen mainScreen]) { + m_viewController = [uiWindow.rootViewController retain]; + break; + } + } + Q_ASSERT(m_viewController); + } + + [[NSNotificationCenter defaultCenter] + addObserver:self + selector:@selector(keyboardWillShow:) + name:@"UIKeyboardWillShowNotification" object:nil]; + [[NSNotificationCenter defaultCenter] + addObserver:self + selector:@selector(keyboardWillHide:) + name:@"UIKeyboardWillHideNotification" object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidChangeFrame:) @@ -72,25 +99,68 @@ - (void) dealloc { + [m_viewController release]; + [[NSNotificationCenter defaultCenter] + removeObserver:self + name:@"UIKeyboardWillShowNotification" object:nil]; + [[NSNotificationCenter defaultCenter] + removeObserver:self + name:@"UIKeyboardWillHideNotification" object:nil]; [[NSNotificationCenter defaultCenter] removeObserver:self name:@"UIKeyboardDidChangeFrameNotification" object:nil]; [super dealloc]; } -- (void) keyboardDidChangeFrame:(NSNotification *)notification +- (QRectF) getKeyboardRect:(NSNotification *)notification { - CGRect frame; - [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] getValue:&frame]; + // For Qt applications we rotate the keyboard rect to align with the screen + // orientation (which is the interface orientation of the root view controller). + // For hybrid apps we follow native behavior, and return the rect unmodified: + CGRect keyboardFrame = [[notification userInfo][UIKeyboardFrameEndUserInfoKey] CGRectValue]; + if (isQtApplication()) { + UIView *view = m_viewController.view; + return fromCGRect(CGRectOffset([view convertRect:keyboardFrame fromView:view.window], 0, -view.bounds.origin.y)); + } else { + return fromCGRect(keyboardFrame); + } +} - m_keyboardRect = fromPortraitToPrimary(fromCGRect(frame), QGuiApplication::primaryScreen()->handle()); +- (void) keyboardDidChangeFrame:(NSNotification *)notification +{ + m_keyboardRect = [self getKeyboardRect:notification]; m_context->emitKeyboardRectChanged(); - BOOL visible = CGRectIntersectsRect(frame, [UIScreen mainScreen].bounds); + BOOL visible = m_keyboardRect.intersects(fromCGRect([UIScreen mainScreen].bounds)); if (m_keyboardVisible != visible) { m_keyboardVisible = visible; m_context->emitInputPanelVisibleChanged(); } + + // If the keyboard was visible and docked from before, this is just a geometry + // change (normally caused by an orientation change). In that case, update scroll: + if (m_keyboardVisibleAndDocked) + m_context->scrollRootView(); +} + +- (void) keyboardWillShow:(NSNotification *)notification +{ + // Note that UIKeyboardWillShowNotification is only sendt when the keyboard is docked. + m_keyboardVisibleAndDocked = YES; + m_keyboardEndRect = [self getKeyboardRect:notification]; + if (!m_duration) { + m_duration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue]; + m_curve = [notification.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue] << 16; + } + m_context->scrollRootView(); +} + +- (void) keyboardWillHide:(NSNotification *)notification +{ + // Note that UIKeyboardWillHideNotification is also sendt when the keyboard is undocked. + m_keyboardVisibleAndDocked = NO; + m_keyboardEndRect = [self getKeyboardRect:notification]; + m_context->scrollRootView(); } @end @@ -100,7 +170,11 @@ QIOSInputContext::QIOSInputContext() , m_keyboardListener([[QIOSKeyboardListener alloc] initWithQIOSInputContext:this]) , m_focusView(0) , m_hasPendingHideRequest(false) + , m_inSetFocusObject(false) { + if (isQtApplication()) + connect(qGuiApp->inputMethod(), &QInputMethod::cursorRectangleChanged, this, &QIOSInputContext::scrollRootView); + connect(qGuiApp, &QGuiApplication::focusWindowChanged, this, &QIOSInputContext::focusWindowChanged); } QIOSInputContext::~QIOSInputContext() @@ -142,10 +216,76 @@ bool QIOSInputContext::isInputPanelVisible() const return m_keyboardListener->m_keyboardVisible; } -void QIOSInputContext::focusViewChanged(UIView *view) +void QIOSInputContext::setFocusObject(QObject *) +{ + m_inputItemTransform = qApp->inputMethod()->inputItemTransform(); + + if (!m_focusView || !m_focusView.isFirstResponder) + return; + + // Since m_focusView is the first responder, it means that the keyboard is open and we + // should update keyboard layout. But there seem to be no way to tell it to reread the + // UITextInputTraits from m_focusView. To work around that, we quickly resign first + // responder status just to reassign it again. To not remove the focusObject in the same + // go, we need to call the super implementation of resignFirstResponder. Since the call + // will cause a 'keyboardWillHide' notification to be sendt, we also block scrollRootView + // to avoid artifacts: + m_inSetFocusObject = true; + SEL sel = @selector(resignFirstResponder); + [[m_focusView superclass] instanceMethodForSelector:sel](m_focusView, sel); + m_inSetFocusObject = false; + [m_focusView becomeFirstResponder]; +} + +void QIOSInputContext::focusWindowChanged(QWindow *focusWindow) { + UIView<UIKeyInput> *view = reinterpret_cast<UIView<UIKeyInput> *>(focusWindow->handle()->winId()); if ([m_focusView isFirstResponder]) [view becomeFirstResponder]; [m_focusView release]; m_focusView = [view retain]; } + +void QIOSInputContext::scrollRootView() +{ + // Scroll the root view (screen) if: + // - our backend controls the root view controller on the main screen (no hybrid app) + // - the focus object is on the same screen as the keyboard. + // - the first responder is a QUIView, and not some other foreign UIView. + // - the keyboard is docked. Otherwise the user can move the keyboard instead. + // - the inputItem has not been moved/scrolled + if (!isQtApplication() || !m_focusView || m_inSetFocusObject) + return; + + if (m_inputItemTransform != qApp->inputMethod()->inputItemTransform()) { + // The inputItem has moved since the last scroll update. To avoid competing + // with the application where the cursor/inputItem should be, we bail: + return; + } + + UIView *view = m_keyboardListener->m_viewController.view; + qreal scrollTo = 0; + + if (m_focusView.isFirstResponder + && m_keyboardListener->m_keyboardVisibleAndDocked + && m_focusView.window == view.window) { + QRectF cursorRect = qGuiApp->inputMethod()->cursorRectangle(); + cursorRect.translate(qGuiApp->focusWindow()->geometry().topLeft()); + qreal keyboardY = m_keyboardListener->m_keyboardEndRect.y(); + int statusBarY = qGuiApp->primaryScreen()->availableGeometry().y(); + const int margin = 20; + + if (cursorRect.bottomLeft().y() > keyboardY - margin) + scrollTo = qMin(view.bounds.size.height - keyboardY, cursorRect.y() - statusBarY - margin); + } + + if (scrollTo != view.bounds.origin.y) { + // Scroll the view the same way a UIScrollView works: by changing bounds.origin: + CGRect newBounds = view.bounds; + newBounds.origin.y = scrollTo; + [UIView animateWithDuration:m_keyboardListener->m_duration delay:0 + options:m_keyboardListener->m_curve + animations:^{ view.bounds = newBounds; } + completion:0]; + } +} |