bool TouchEventHandler::handleTouchPoint(Platform::TouchPoint& point)
{
// Enable input mode on any touch event.
m_webPage->m_inputHandler->enableInputMode();
switch (point.m_state) {
case Platform::TouchPoint::TouchPressed:
{
m_lastFatFingersResult.reset(); // Theoretically this shouldn't be required. Keep it just in case states get mangled.
m_didCancelTouch = false;
m_lastScreenPoint = point.m_screenPos;
IntPoint contentPos(m_webPage->mapFromViewportToContents(point.m_pos));
m_lastFatFingersResult = FatFingers(m_webPage, contentPos, FatFingers::ClickableElement).findBestPoint();
Element* elementUnderFatFinger = 0;
if (m_lastFatFingersResult.positionWasAdjusted() && m_lastFatFingersResult.node()) {
ASSERT(m_lastFatFingersResult.node()->isElementNode());
elementUnderFatFinger = m_lastFatFingersResult.nodeAsElementIfApplicable();
}
// Set or reset the touch mode.
Element* possibleTargetNodeForMouseMoveEvents = static_cast<Element*>(m_lastFatFingersResult.positionWasAdjusted() ? elementUnderFatFinger : m_lastFatFingersResult.node());
m_convertTouchToMouse = shouldConvertTouchToMouse(possibleTargetNodeForMouseMoveEvents);
if (elementUnderFatFinger)
drawTapHighlight();
// Lets be conservative here: since we have problems on major website having
// mousemove listener for no good reason (e.g. google.com, desktop edition),
// let only delay client notifications when there is not input text node involved.
if (m_convertTouchToMouse
&& (m_webPage->m_inputHandler->isInputMode() && !m_lastFatFingersResult.isTextInput())) {
m_webPage->m_inputHandler->setDelayKeyboardVisibilityChange(true);
handleFatFingerPressed();
} else if (!shouldSuppressMouseDownOnTouchDown())
handleFatFingerPressed();
return true;
}
case Platform::TouchPoint::TouchReleased:
{
unsigned spellLength = spellCheck(point);
// Apply any suppressed changes. This does not eliminate the need
// for the show after the handling of fat finger pressed as it may
// have triggered a state change.
m_webPage->m_inputHandler->processPendingKeyboardVisibilityChange();
if (shouldSuppressMouseDownOnTouchDown())
handleFatFingerPressed();
// The rebase has eliminated a necessary event when the mouse does not
// trigger an actual selection change preventing re-showing of the
// keyboard. If input mode is active, call showVirtualKeyboard which
// will update the state and display keyboard if needed.
if (m_webPage->m_inputHandler->isInputMode())
m_webPage->m_inputHandler->notifyClientOfKeyboardVisibilityChange(true);
IntPoint adjustedPoint;
if (m_convertTouchToMouse) {
adjustedPoint = point.m_pos;
m_convertTouchToMouse = false;
} else // Fat finger point in viewport coordinates.
adjustedPoint = m_webPage->mapFromContentsToViewport(m_lastFatFingersResult.adjustedPosition());
PlatformMouseEvent mouseEvent(adjustedPoint, m_lastScreenPoint, PlatformEvent::MouseReleased, 1, LeftButton, TouchScreen);
m_webPage->handleMouseEvent(mouseEvent);
m_lastFatFingersResult.reset(); // Reset the fat finger result as its no longer valid when a user's finger is not on the screen.
if (spellLength) {
unsigned end = m_webPage->m_inputHandler->caretPosition();
unsigned start = end - spellLength;
m_webPage->m_client->requestSpellingSuggestionsForString(start, end);
}
return true;
}
case Platform::TouchPoint::TouchMoved:
if (m_convertTouchToMouse) {
PlatformMouseEvent mouseEvent(point.m_pos, m_lastScreenPoint, PlatformEvent::MouseMoved, 1, LeftButton, TouchScreen);
m_lastScreenPoint = point.m_screenPos;
if (!m_webPage->handleMouseEvent(mouseEvent)) {
m_convertTouchToMouse = false;
return false;
}
return true;
}
break;
default:
break;
}
return false;
}
bool TouchEventHandler::handleTouchPoint(Platform::TouchPoint& point, bool useFatFingers)
{
// Enable input mode on any touch event.
m_webPage->m_inputHandler->setInputModeEnabled();
bool pureWithMouseConversion = m_webPage->m_touchEventMode == PureTouchEventsWithMouseConversion;
bool alwaysEnableMouseConversion = pureWithMouseConversion || (!isMainFrameScrollable(m_webPage) && !m_webPage->m_inRegionScroller->d->isActive());
switch (point.m_state) {
case Platform::TouchPoint::TouchPressed:
{
// FIXME: bypass FatFingers if useFatFingers is false
m_lastFatFingersResult.reset(); // Theoretically this shouldn't be required. Keep it just in case states get mangled.
m_didCancelTouch = false;
m_lastScreenPoint = point.m_screenPos;
IntPoint contentPos(m_webPage->mapFromViewportToContents(point.m_pos));
m_lastFatFingersResult = FatFingers(m_webPage, contentPos, FatFingers::ClickableElement).findBestPoint();
Element* elementUnderFatFinger = 0;
if (m_lastFatFingersResult.positionWasAdjusted() && m_lastFatFingersResult.node()) {
ASSERT(m_lastFatFingersResult.node()->isElementNode());
elementUnderFatFinger = m_lastFatFingersResult.nodeAsElementIfApplicable();
}
// Set or reset the touch mode.
Element* possibleTargetNodeForMouseMoveEvents = static_cast<Element*>(m_lastFatFingersResult.positionWasAdjusted() ? elementUnderFatFinger : m_lastFatFingersResult.node());
m_convertTouchToMouse = alwaysEnableMouseConversion ? true : shouldConvertTouchToMouse(possibleTargetNodeForMouseMoveEvents);
if (!possibleTargetNodeForMouseMoveEvents || (!possibleTargetNodeForMouseMoveEvents->hasEventListeners(eventNames().touchmoveEvent) && !m_convertTouchToMouse))
m_webPage->client()->notifyNoMouseMoveOrTouchMoveHandlers();
if (elementUnderFatFinger)
drawTapHighlight();
// Lets be conservative here: since we have problems on major website having
// mousemove listener for no good reason (e.g. google.com, desktop edition),
// let only delay client notifications when there is not input text node involved.
if (m_convertTouchToMouse
&& (m_webPage->m_inputHandler->isInputMode() && !m_lastFatFingersResult.isTextInput())) {
m_webPage->m_inputHandler->setDelayKeyboardVisibilityChange(true);
handleFatFingerPressed();
} else if (!shouldSuppressMouseDownOnTouchDown())
handleFatFingerPressed();
return true;
}
case Platform::TouchPoint::TouchReleased:
{
imf_sp_text_t spellCheckOptionRequest;
bool shouldRequestSpellCheckOptions = false;
if (m_lastFatFingersResult.isTextInput())
shouldRequestSpellCheckOptions = m_webPage->m_inputHandler->shouldRequestSpellCheckingOptionsForPoint(point.m_pos
, m_lastFatFingersResult.nodeAsElementIfApplicable(FatFingersResult::ShadowContentNotAllowed)
, spellCheckOptionRequest);
// Apply any suppressed changes. This does not eliminate the need
// for the show after the handling of fat finger pressed as it may
// have triggered a state change. Leave the change suppressed if
// we are triggering spell check options.
if (!shouldRequestSpellCheckOptions)
m_webPage->m_inputHandler->processPendingKeyboardVisibilityChange();
if (shouldSuppressMouseDownOnTouchDown())
handleFatFingerPressed();
// The rebase has eliminated a necessary event when the mouse does not
// trigger an actual selection change preventing re-showing of the
// keyboard. If input mode is active, call showVirtualKeyboard which
// will update the state and display keyboard if needed.
if (m_webPage->m_inputHandler->isInputMode())
m_webPage->m_inputHandler->notifyClientOfKeyboardVisibilityChange(true);
IntPoint adjustedPoint;
if (m_convertTouchToMouse || !useFatFingers) {
adjustedPoint = point.m_pos;
m_convertTouchToMouse = pureWithMouseConversion;
} else // Fat finger point in viewport coordinates.
adjustedPoint = m_webPage->mapFromContentsToViewport(m_lastFatFingersResult.adjustedPosition());
PlatformMouseEvent mouseEvent(adjustedPoint, m_lastScreenPoint, PlatformEvent::MouseReleased, 1, LeftButton, TouchScreen);
m_webPage->handleMouseEvent(mouseEvent);
m_lastFatFingersResult.reset(); // Reset the fat finger result as its no longer valid when a user's finger is not on the screen.
if (shouldRequestSpellCheckOptions)
m_webPage->m_inputHandler->requestSpellingCheckingOptions(spellCheckOptionRequest);
return true;
}
case Platform::TouchPoint::TouchMoved:
if (m_convertTouchToMouse) {
PlatformMouseEvent mouseEvent(point.m_pos, m_lastScreenPoint, PlatformEvent::MouseMoved, 1, LeftButton, TouchScreen);
m_lastScreenPoint = point.m_screenPos;
if (!m_webPage->handleMouseEvent(mouseEvent)) {
m_convertTouchToMouse = alwaysEnableMouseConversion;
return false;
}
return true;
}
break;
default:
break;
}
return false;
}