bool DragController::startDrag(Frame* src, const DragState& state, DragOperation srcOp, const PlatformMouseEvent& dragEvent, const IntPoint& dragOrigin)
{
ASSERT(src);
if (!src->view() || !src->contentRenderer())
return false;
HitTestResult hitTestResult = src->eventHandler()->hitTestResultAtPoint(dragOrigin, true);
if (!state.m_dragSrc->contains(hitTestResult.innerNode()))
// The original node being dragged isn't under the drag origin anymore... maybe it was
// hidden or moved out from under the cursor. Regardless, we don't want to start a drag on
// something that's not actually under the drag origin.
return false;
KURL linkURL = hitTestResult.absoluteLinkURL();
KURL imageURL = hitTestResult.absoluteImageURL();
IntPoint mouseDraggedPoint = src->view()->windowToContents(dragEvent.position());
m_draggingImageURL = KURL();
m_sourceDragOperation = srcOp;
DragImageRef dragImage = 0;
IntPoint dragLoc(0, 0);
IntPoint dragImageOffset(0, 0);
Clipboard* clipboard = state.m_dragClipboard.get();
if (state.m_dragType == DragSourceActionDHTML)
dragImage = clipboard->createDragImage(dragImageOffset);
if (state.m_dragType == DragSourceActionSelection || !imageURL.isEmpty() || !linkURL.isEmpty())
// Selection, image, and link drags receive a default set of allowed drag operations that
// follows from:
// http://trac.webkit.org/browser/trunk/WebKit/mac/WebView/WebHTMLView.mm?rev=48526#L3430
m_sourceDragOperation = static_cast<DragOperation>(m_sourceDragOperation | DragOperationGeneric | DragOperationCopy);
// We allow DHTML/JS to set the drag image, even if its a link, image or text we're dragging.
// This is in the spirit of the IE API, which allows overriding of pasteboard data and DragOp.
if (dragImage) {
dragLoc = dragLocForDHTMLDrag(mouseDraggedPoint, dragOrigin, dragImageOffset, !linkURL.isEmpty());
m_dragOffset = dragImageOffset;
}
bool startedDrag = true; // optimism - we almost always manage to start the drag
Node* node = state.m_dragSrc.get();
Image* image = getImage(static_cast<Element*>(node));
if (state.m_dragType == DragSourceActionSelection) {
if (!clipboard->hasData()) {
if (enclosingTextFormControl(src->selection()->start()))
clipboard->writePlainText(src->editor()->selectedText());
else {
RefPtr<Range> selectionRange = src->selection()->toNormalizedRange();
ASSERT(selectionRange);
clipboard->writeRange(selectionRange.get(), src);
}
}
m_client->willPerformDragSourceAction(DragSourceActionSelection, dragOrigin, clipboard);
if (!dragImage) {
dragImage = createDragImageForSelection(src);
dragLoc = dragLocForSelectionDrag(src);
m_dragOffset = IntPoint(dragOrigin.x() - dragLoc.x(), dragOrigin.y() - dragLoc.y());
}
doSystemDrag(dragImage, dragLoc, dragOrigin, clipboard, src, false);
} else if (!imageURL.isEmpty() && node && node->isElementNode() && image && !image->isNull()
&& (m_dragSourceAction & DragSourceActionImage)) {
// We shouldn't be starting a drag for an image that can't provide an extension.
// This is an early detection for problems encountered later upon drop.
ASSERT(!image->filenameExtension().isEmpty());
Element* element = static_cast<Element*>(node);
if (!clipboard->hasData()) {
m_draggingImageURL = imageURL;
prepareClipboardForImageDrag(src, clipboard, element, linkURL, imageURL, hitTestResult.altDisplayString());
}
m_client->willPerformDragSourceAction(DragSourceActionImage, dragOrigin, clipboard);
if (!dragImage) {
IntRect imageRect = hitTestResult.imageRect();
imageRect.setLocation(m_page->mainFrame()->view()->rootViewToContents(src->view()->contentsToRootView(imageRect.location())));
doImageDrag(element, dragOrigin, hitTestResult.imageRect(), clipboard, src, m_dragOffset);
} else
// DHTML defined drag image
doSystemDrag(dragImage, dragLoc, dragOrigin, clipboard, src, false);
} else if (!linkURL.isEmpty() && (m_dragSourceAction & DragSourceActionLink)) {
if (!clipboard->hasData())
// Simplify whitespace so the title put on the clipboard resembles what the user sees
// on the web page. This includes replacing newlines with spaces.
clipboard->writeURL(linkURL, hitTestResult.textContent().simplifyWhiteSpace(), src);
if (src->selection()->isCaret() && src->selection()->isContentEditable()) {
// a user can initiate a drag on a link without having any text
// selected. In this case, we should expand the selection to
// the enclosing anchor element
Position pos = src->selection()->base();
Node* node = enclosingAnchorElement(pos);
if (node)
src->selection()->setSelection(VisibleSelection::selectionFromContentsOfNode(node));
}
m_client->willPerformDragSourceAction(DragSourceActionLink, dragOrigin, clipboard);
if (!dragImage) {
dragImage = createDragImageForLink(linkURL, hitTestResult.textContent(), src);
IntSize size = dragImageSize(dragImage);
m_dragOffset = IntPoint(-size.width() / 2, -LinkDragBorderInset);
dragLoc = IntPoint(mouseDraggedPoint.x() + m_dragOffset.x(), mouseDraggedPoint.y() + m_dragOffset.y());
}
doSystemDrag(dragImage, dragLoc, mouseDraggedPoint, clipboard, src, true);
} else if (state.m_dragType == DragSourceActionDHTML) {
ASSERT(m_dragSourceAction & DragSourceActionDHTML);
m_client->willPerformDragSourceAction(DragSourceActionDHTML, dragOrigin, clipboard);
doSystemDrag(dragImage, dragLoc, dragOrigin, clipboard, src, false);
} else {
// draggableNode() determined an image or link node was draggable, but it turns out the
// image or link had no URL, so there is nothing to drag.
startedDrag = false;
}
if (dragImage)
deleteDragImage(dragImage);
return startedDrag;
}
bool PopupListBox::handleMouseReleaseEvent(const PlatformMouseEvent& event)
{
if (m_capturingScrollbar) {
m_capturingScrollbar->mouseUp(event);
m_capturingScrollbar = 0;
return true;
}
if (!isPointInBounds(event.position()))
return true;
// Need to check before calling acceptIndex(), because m_popupClient might
// be removed in acceptIndex() calling because of event handler.
bool isSelectPopup = m_popupClient->menuStyle().menuType() == PopupMenuStyle::SelectPopup;
if (acceptIndex(pointToRowIndex(event.position())) && m_focusedElement && isSelectPopup) {
m_focusedElement->dispatchMouseEvent(event, EventTypeNames::mouseup);
m_focusedElement->dispatchMouseEvent(event, EventTypeNames::click);
// Clear m_focusedElement here, because we cannot clear in hidePopup()
// which is called before dispatchMouseEvent() is called.
m_focusedElement = 0;
}
return true;
}
void Scrollbar::mouseDown(const PlatformMouseEvent& evt) {
// Early exit for right click
if (evt.pointerProperties().button == WebPointerProperties::Button::Right)
return;
setPressedPart(theme().hitTest(*this, evt.position()));
int pressedPos = orientation() == HorizontalScrollbar
? convertFromRootFrame(evt.position()).x()
: convertFromRootFrame(evt.position()).y();
if ((m_pressedPart == BackTrackPart || m_pressedPart == ForwardTrackPart) &&
theme().shouldCenterOnThumb(*this, evt)) {
setHoveredPart(ThumbPart);
setPressedPart(ThumbPart);
m_dragOrigin = m_currentPos;
int thumbLen = theme().thumbLength(*this);
int desiredPos = pressedPos;
// Set the pressed position to the middle of the thumb so that when we do
// the move, the delta will be from the current pixel position of the thumb
// to the new desired position for the thumb.
m_pressedPos = theme().trackPosition(*this) + theme().thumbPosition(*this) +
thumbLen / 2;
moveThumb(desiredPos);
return;
}
if (m_pressedPart == ThumbPart) {
m_dragOrigin = m_currentPos;
if (m_scrollableArea)
m_scrollableArea->mouseCapturedScrollbar();
}
m_pressedPos = pressedPos;
autoscrollPressedPart(theme().initialAutoscrollTimerDelay());
}
virtual bool mouseEvent(WebPageOverlay& pageOverlay, const PlatformMouseEvent& event) override
{
switch (event.type()) {
case PlatformMouseEvent::Type::MousePressed: {
if (!m_client.mouseDown)
return false;
return m_client.mouseDown(toAPI(&pageOverlay), toAPI(event.position()), toAPI(event.button()), m_client.base.clientInfo);
}
case PlatformMouseEvent::Type::MouseReleased: {
if (!m_client.mouseUp)
return false;
return m_client.mouseUp(toAPI(&pageOverlay), toAPI(event.position()), toAPI(event.button()), m_client.base.clientInfo);
}
case PlatformMouseEvent::Type::MouseMoved: {
if (event.button() == MouseButton::NoButton) {
if (!m_client.mouseMoved)
return false;
return m_client.mouseMoved(toAPI(&pageOverlay), toAPI(event.position()), m_client.base.clientInfo);
}
// This is a MouseMove event with a mouse button pressed. Call mouseDragged.
if (!m_client.mouseDragged)
return false;
return m_client.mouseDragged(toAPI(&pageOverlay), toAPI(event.position()), toAPI(event.button()), m_client.base.clientInfo);
}
default:
return false;
}
}
bool PopupListBox::handleMouseMoveEvent(const PlatformMouseEvent& event)
{
if (m_capturingScrollbar) {
m_capturingScrollbar->mouseMoved(event);
return true;
}
Scrollbar* scrollbar = scrollbarAtPoint(event.position());
if (m_lastScrollbarUnderMouse != scrollbar) {
// Send mouse exited to the old scrollbar.
if (m_lastScrollbarUnderMouse)
m_lastScrollbarUnderMouse->mouseExited();
m_lastScrollbarUnderMouse = scrollbar;
}
if (scrollbar) {
scrollbar->mouseMoved(event);
return true;
}
if (!isPointInBounds(event.position()))
return false;
selectIndex(pointToRowIndex(event.position()));
return true;
}
static PlatformMouseEvent constructRelativeMouseEvent(const PlatformMouseEvent& e, FramelessScrollView* parent, FramelessScrollView* child)
{
IntPoint pos = parent->convertSelfToChild(child, e.position());
// FIXME: This is a horrible hack since PlatformMouseEvent has no setters for x/y.
PlatformMouseEvent relativeEvent = e;
IntPoint& relativePos = const_cast<IntPoint&>(relativeEvent.position());
relativePos.setX(pos.x());
relativePos.setY(pos.y());
return relativeEvent;
}
bool PopupListBox::handleMouseDownEvent(const PlatformMouseEvent& event)
{
Scrollbar* scrollbar = scrollbarAtPoint(event.position());
if (scrollbar) {
m_capturingScrollbar = scrollbar;
m_capturingScrollbar->mouseDown(event);
return true;
}
if (!isPointInBounds(event.position()))
abandon();
return true;
}
bool Scrollbar::mouseDown(const PlatformMouseEvent& evt)
{
// Early exit for right click
if (evt.button() == RightButton)
return true; // FIXME: Handled as context menu by Qt right now. Should just avoid even calling this method on a right click though.
setPressedPart(theme().hitTest(*this, evt.position()));
int pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y());
if ((m_pressedPart == BackTrackPart || m_pressedPart == ForwardTrackPart) && theme().shouldCenterOnThumb(*this, evt)) {
setHoveredPart(ThumbPart);
setPressedPart(ThumbPart);
m_dragOrigin = m_currentPos;
int thumbLen = theme().thumbLength(*this);
int desiredPos = pressedPos;
// Set the pressed position to the middle of the thumb so that when we do the move, the delta
// will be from the current pixel position of the thumb to the new desired position for the thumb.
m_pressedPos = theme().trackPosition(*this) + theme().thumbPosition(*this) + thumbLen / 2;
moveThumb(desiredPos);
return true;
} else if (m_pressedPart == ThumbPart)
m_dragOrigin = m_currentPos;
m_pressedPos = pressedPos;
autoscrollPressedPart(theme().initialAutoscrollTimerDelay());
return true;
}
bool Scrollbar::mouseDown(const PlatformMouseEvent& evt)
{
ScrollbarPart pressedPart = theme().hitTest(*this, evt.position());
auto action = theme().handleMousePressEvent(*this, evt, pressedPart);
if (action == ScrollbarButtonPressAction::None)
return true;
m_scrollableArea.mouseIsDownInScrollbar(this, true);
setPressedPart(pressedPart);
int pressedPosition = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y());
if (action == ScrollbarButtonPressAction::CenterOnThumb) {
setHoveredPart(ThumbPart);
setPressedPart(ThumbPart);
m_dragOrigin = m_currentPos;
// Set the pressed position to the middle of the thumb so that when we do the move, the delta
// will be from the current pixel position of the thumb to the new desired position for the thumb.
m_pressedPos = theme().trackPosition(*this) + theme().thumbPosition(*this) + theme().thumbLength(*this) / 2;
moveThumb(pressedPosition);
return true;
}
m_pressedPos = pressedPosition;
if (action == ScrollbarButtonPressAction::StartDrag)
m_dragOrigin = m_currentPos;
if (action == ScrollbarButtonPressAction::Scroll)
autoscrollPressedPart(theme().initialAutoscrollTimerDelay());
return true;
}
void Scrollbar::mouseDown(const PlatformMouseEvent& evt)
{
// Early exit for right click
if (evt.button() == RightButton)
return;
setPressedPart(theme()->hitTest(this, evt.position()));
int pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y();
if ((m_pressedPart == BackTrackPart || m_pressedPart == ForwardTrackPart) && theme()->shouldCenterOnThumb(this, evt)) {
setHoveredPart(ThumbPart);
setPressedPart(ThumbPart);
m_dragOrigin = m_currentPos;
int thumbLen = theme()->thumbLength(this);
int desiredPos = pressedPos;
// Set the pressed position to the middle of the thumb so that when we do the move, the delta
// will be from the current pixel position of the thumb to the new desired position for the thumb.
m_pressedPos = theme()->trackPosition(this) + theme()->thumbPosition(this) + thumbLen / 2;
moveThumb(desiredPos);
return;
} else if (m_pressedPart == ThumbPart)
m_dragOrigin = m_currentPos;
m_pressedPos = pressedPos;
autoscrollPressedPart(theme()->initialAutoscrollTimerDelay());
}
void Scrollbar::mouseMoved(const PlatformMouseEvent& evt)
{
if (m_pressedPart == ThumbPart) {
moveThumb(m_orientation == HorizontalScrollbar ?
convertFromContainingView(evt.position()).x() :
convertFromContainingView(evt.position()).y());
return;
}
if (m_pressedPart != NoPart)
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
// FIXME(sky): Cleanup this code now that part is always NoPart.
ScrollbarPart part = NoPart;
if (part != m_hoveredPart) {
if (m_pressedPart != NoPart) {
if (part == m_pressedPart) {
// The mouse is moving back over the pressed part. We
// need to start up the timer action again.
startTimerIfNeeded(autoscrollTimerDelay());
invalidatePart(m_pressedPart);
} else if (m_hoveredPart == m_pressedPart) {
// The mouse is leaving the pressed part. Kill our timer
// if needed.
stopTimerIfNeeded();
invalidatePart(m_pressedPart);
}
}
setHoveredPart(part);
}
return;
}
ScrollbarPart ScrollbarThemeQStyle::hitTest(ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& evt)
{
QStyleOptionSlider* opt = styleOptionSlider(scrollbar);
const QPoint pos = scrollbar->convertFromContainingWindow(evt.position());
opt->rect.moveTo(QPoint(0, 0));
QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ScrollBar, opt, pos, 0);
return scrollbarPart(sc);
}
bool ScrollbarTheme::shouldSnapBackToDragOrigin(
const ScrollbarThemeClient& scrollbar,
const PlatformMouseEvent& evt) {
IntPoint mousePosition = scrollbar.convertFromRootFrame(evt.position());
mousePosition.move(scrollbar.x(), scrollbar.y());
return Platform::current()->scrollbarBehavior()->shouldSnapBackToDragOrigin(
mousePosition, trackRect(scrollbar),
scrollbar.orientation() == HorizontalScrollbar);
}
void Scrollbar::mouseMoved(const PlatformMouseEvent& evt) {
if (m_pressedPart == ThumbPart) {
if (theme().shouldSnapBackToDragOrigin(*this, evt)) {
if (m_scrollableArea) {
m_scrollableArea->setScrollOffsetSingleAxis(
m_orientation,
m_dragOrigin + m_scrollableArea->minimumScrollOffset(m_orientation),
UserScroll);
}
} else {
moveThumb(m_orientation == HorizontalScrollbar
? convertFromRootFrame(evt.position()).x()
: convertFromRootFrame(evt.position()).y(),
theme().shouldDragDocumentInsteadOfThumb(*this, evt));
}
return;
}
if (m_pressedPart != NoPart)
m_pressedPos = orientation() == HorizontalScrollbar
? convertFromRootFrame(evt.position()).x()
: convertFromRootFrame(evt.position()).y();
ScrollbarPart part = theme().hitTest(*this, evt.position());
if (part != m_hoveredPart) {
if (m_pressedPart != NoPart) {
if (part == m_pressedPart) {
// The mouse is moving back over the pressed part. We
// need to start up the timer action again.
startTimerIfNeeded(theme().autoscrollTimerDelay());
} else if (m_hoveredPart == m_pressedPart) {
// The mouse is leaving the pressed part. Kill our timer
// if needed.
stopTimerIfNeeded();
}
}
setHoveredPart(part);
}
return;
}
void Scrollbar::mouseMoved(const PlatformMouseEvent& evt)
{
if (m_pressedPart == ThumbPart) {
if (theme()->shouldSnapBackToDragOrigin(this, evt)) {
if (m_scrollableArea)
m_scrollableArea->scrollToOffsetWithoutAnimation(m_orientation, m_dragOrigin + m_scrollableArea->minimumScrollPosition(m_orientation));
} else {
moveThumb(m_orientation == HorizontalScrollbar ?
convertFromContainingWindow(evt.position()).x() :
convertFromContainingWindow(evt.position()).y(), theme()->shouldDragDocumentInsteadOfThumb(this, evt));
}
return;
}
if (m_pressedPart != NoPart)
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y();
ScrollbarPart part = theme()->hitTest(this, evt.position());
if (part != m_hoveredPart) {
if (m_pressedPart != NoPart) {
if (part == m_pressedPart) {
// The mouse is moving back over the pressed part. We
// need to start up the timer action again.
startTimerIfNeeded(theme()->autoscrollTimerDelay());
theme()->invalidatePart(this, m_pressedPart);
} else if (m_hoveredPart == m_pressedPart) {
// The mouse is leaving the pressed part. Kill our timer
// if needed.
stopTimerIfNeeded();
theme()->invalidatePart(this, m_pressedPart);
}
}
setHoveredPart(part);
}
return;
}
Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, AbstractView* view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
{
bool isMouseEnterOrLeave = eventType == eventNames().mouseenterEvent || eventType == eventNames().mouseleaveEvent;
bool isCancelable = eventType != eventNames().mousemoveEvent && !isMouseEnterOrLeave;
bool canBubble = !isMouseEnterOrLeave;
return MouseEvent::create(eventType, canBubble, isCancelable, event.timestamp(), view,
detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
#if ENABLE(POINTER_LOCK)
event.movementDelta().x(), event.movementDelta().y(),
#endif
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
relatedTarget, event.force(), event.syntheticClickType());
}
PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
{
ASSERT(event.type() == PlatformEvent::MouseMoved || event.button() != NoButton);
bool isCancelable = eventType != eventNames().mousemoveEvent;
return MouseEvent::create(eventType, true, isCancelable, view,
detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
#if ENABLE(POINTER_LOCK)
event.movementDelta().x(), event.movementDelta().y(),
#endif
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
relatedTarget, 0, false);
}
PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
{
ASSERT(event.type() == PlatformEvent::MouseMoved || event.button() != NoButton);
bool isMouseEnterOrLeave = eventType == EventTypeNames::mouseenter || eventType == EventTypeNames::mouseleave;
bool isCancelable = !isMouseEnterOrLeave;
bool isBubbling = !isMouseEnterOrLeave;
return MouseEvent::create(eventType, isBubbling, isCancelable, view,
detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
event.movementDelta().x(), event.movementDelta().y(),
event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
relatedTarget, nullptr, false);
}
void Scrollbar::mouseUp(const PlatformMouseEvent& mouseEvent)
{
setPressedPart(NoPart);
m_pressedPos = 0;
m_draggingDocument = false;
stopTimerIfNeeded();
if (m_scrollableArea) {
// m_hoveredPart won't be updated until the next mouseMoved or mouseDown, so we have to hit test
// to really know if the mouse has exited the scrollbar on a mouseUp.
ScrollbarPart part = theme()->hitTest(this, mouseEvent.position());
if (part == NoPart)
m_scrollableArea->mouseExitedScrollbar(this);
}
}
PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtrWillBeRawPtr<Node> relatedTarget)
{
ASSERT(event.type() == PlatformEvent::MouseMoved || event.button() != NoButton);
bool isMouseEnterOrLeave = eventType == EventTypeNames::mouseenter || eventType == EventTypeNames::mouseleave;
bool isCancelable = !isMouseEnterOrLeave;
bool isBubbling = !isMouseEnterOrLeave;
return MouseEvent::create(
eventType, isBubbling, isCancelable, view,
detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
event.movementDelta().x(), event.movementDelta().y(),
event.modifiers(), event.button(),
platformModifiersToButtons(event.modifiers()),
relatedTarget, event.timestamp(), event.syntheticEventType());
}
bool ScrollbarThemeChromiumWin::shouldSnapBackToDragOrigin(ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& evt)
{
// Find the rect within which we shouldn't snap, by expanding the track rect
// in both dimensions.
IntRect rect = trackRect(scrollbar);
const bool horz = scrollbar->orientation() == HorizontalScrollbar;
const int thickness = scrollbarThickness(scrollbar->controlSize());
rect.inflateX((horz ? kOffEndMultiplier : kOffSideMultiplier) * thickness);
rect.inflateY((horz ? kOffSideMultiplier : kOffEndMultiplier) * thickness);
// Convert the event to local coordinates.
IntPoint mousePosition = scrollbar->convertFromContainingWindow(evt.position());
mousePosition.move(scrollbar->x(), scrollbar->y());
// We should snap iff the event is outside our calculated rect.
return !rect.contains(mousePosition);
}
void Scrollbar::mouseUp(const PlatformMouseEvent& mouseEvent) {
bool isCaptured = m_pressedPart == ThumbPart;
setPressedPart(NoPart);
m_pressedPos = 0;
m_draggingDocument = false;
stopTimerIfNeeded();
if (m_scrollableArea) {
if (isCaptured)
m_scrollableArea->mouseReleasedScrollbar();
// m_hoveredPart won't be updated until the next mouseMoved or mouseDown, so
// we have to hit test to really know if the mouse has exited the scrollbar
// on a mouseUp.
ScrollbarPart part = theme().hitTest(*this, mouseEvent.position());
if (part == NoPart)
m_scrollableArea->mouseExitedScrollbar(*this);
}
}
bool Scrollbar::mouseUp(const PlatformMouseEvent& mouseEvent)
{
setPressedPart(NoPart);
m_pressedPos = 0;
m_draggingDocument = false;
stopTimerIfNeeded();
if (m_scrollableArea) {
// m_hoveredPart won't be updated until the next mouseMoved or mouseDown, so we have to hit test
// to really know if the mouse has exited the scrollbar on a mouseUp.
ScrollbarPart part = theme()->hitTest(this, mouseEvent.position());
if (part == NoPart)
m_scrollableArea->mouseExitedScrollbar(this);
}
if (parent() && parent()->isFrameView())
static_cast<FrameView*>(parent())->frame()->eventHandler()->setMousePressed(false);
return true;
}
ScrollbarPart ScrollbarThemeComposite::hitTest(ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& evt)
{
ScrollbarPart result = NoPart;
if (!scrollbar->enabled())
return result;
IntPoint mousePosition = scrollbar->convertFromContainingWindow(evt.position());
mousePosition.move(scrollbar->x(), scrollbar->y());
if (!scrollbar->frameRect().contains(mousePosition))
return NoPart;
result = ScrollbarBGPart;
IntRect track = trackRect(scrollbar);
if (track.contains(mousePosition)) {
IntRect beforeThumbRect;
IntRect thumbRect;
IntRect afterThumbRect;
splitTrack(scrollbar, track, beforeThumbRect, thumbRect, afterThumbRect);
if (thumbRect.contains(mousePosition))
result = ThumbPart;
else if (beforeThumbRect.contains(mousePosition))
result = BackTrackPart;
else if (afterThumbRect.contains(mousePosition))
result = ForwardTrackPart;
else
result = TrackBGPart;
} else if (backButtonRect(scrollbar, BackButtonStartPart).contains(mousePosition))
result = BackButtonStartPart;
else if (backButtonRect(scrollbar, BackButtonEndPart).contains(mousePosition))
result = BackButtonEndPart;
else if (forwardButtonRect(scrollbar, ForwardButtonStartPart).contains(mousePosition))
result = ForwardButtonStartPart;
else if (forwardButtonRect(scrollbar, ForwardButtonEndPart).contains(mousePosition))
result = ForwardButtonEndPart;
return result;
}
void Scrollbar::mouseDown(const PlatformMouseEvent& evt)
{
// Early exit for right click
if (evt.button() == RightButton)
return;
// FIXME(sky): Do we still need setPressedPart now that we only set it to NoPart?
setPressedPart(NoPart);
int pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
if (m_pressedPart == ThumbPart)
m_dragOrigin = m_currentPos;
m_pressedPos = pressedPos;
autoscrollPressedPart(initialAutoscrollTimerDelay());
}
bool ScrollbarTheme::shouldSnapBackToDragOrigin(ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& evt)
{
IntPoint mousePosition = scrollbar->convertFromContainingWindow(evt.position());
mousePosition.move(scrollbar->x(), scrollbar->y());
return Platform::current()->scrollbarBehavior()->shouldSnapBackToDragOrigin(mousePosition, trackRect(scrollbar), scrollbar->orientation() == HorizontalScrollbar);
}
