bool Scrollbar::mouseMoved(const PlatformMouseEvent& evt)
{
if (m_pressedPart == ThumbPart) {
moveThumb(m_orientation == HorizontalScrollbar ?
convertFromContainingWindow(evt.pos()).x() :
convertFromContainingWindow(evt.pos()).y());
return true;
}
if (m_pressedPart != NoPart)
m_pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.pos()).x() : convertFromContainingWindow(evt.pos()).y());
ScrollbarPart part = theme()->hitTest(this, evt);
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 true;
}
void MVScrollBar::setBounds(const MVRect& bounds)
/****************************************************************************
*
* Function: MVScrollBar::setBounds
* Parameters: bounds - New bounding box for the scroll bar
*
* Description: Changes the bounds for the scroll bar.
*
****************************************************************************/
{
MVView::setBounds(bounds);
vertical = (size.x < size.y);
// Compute the location of the left and right arrow buttons
leftArrow = bounds;
leftArrow.inset(1,1);
rightArrow = leftArrow;
if (vertical) {
leftArrow.bottom() = leftArrow.top()+(_MV_sysScrollBarWidth+1);
rightArrow.top() = rightArrow.bottom()-(_MV_sysScrollBarWidth+1);
}
else {
leftArrow.right() = leftArrow.left()+(_MV_sysScrollBarWidth+1);
rightArrow.left() = rightArrow.right()-(_MV_sysScrollBarWidth+1);
}
// Compute the location of the thumb
moveThumb();
}
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());
}
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::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;
}
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));
int pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.pos()).x() : convertFromContainingWindow(evt.pos()).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;
}
void Slider::mouseWheelMoved(wxMouseEvent& event) {
TraceOp.trc( "slider", TRCLEVEL_DEBUG, __LINE__, 9999, "mouseWheelMoved %d %d", event.m_wheelDelta, event.m_wheelRotation );
if( event.m_wheelRotation < 0 ) {
ThumbPos++;
}
else {
ThumbPos--;
}
PrevWheelTime = SystemOp.getTick();
moveThumb();
}
void MVScrollBar::setMaxVal(int v)
/****************************************************************************
*
* Function: MVScrollBar::setMaxVal
* Parameters: v - New maximum value for the scroll bar
*
* Description: Sets the maximum value for the scroll bar.
*
****************************************************************************/
{
maxVal = v;
if (value > maxVal) value = maxVal;
moveThumb();
if (owner)
owner->repaint(bounds);
}
void MVScrollBar::changeValue(int part)
/****************************************************************************
*
* Function: MVScrollBar::changeValue
* Parameters: part - Scroll bar arrow hit
*
* Description: Adjusts the scroll bar value depending on which part of
* the scroll bar was hit.
*
****************************************************************************/
{
int oldValue = value;
switch (part) {
case sbLeftArrow:
value -= arrowStep;
break;
case sbRightArrow:
value += arrowStep;
break;
case sbPageLeft:
value -= pageStep;
break;
case sbPageRight:
value += pageStep;
break;
}
if (value < minVal) value = minVal;
if (value > maxVal) value = maxVal;
if (oldValue != value) {
moveThumb();
drawThumb(part);
// We need to redraw the opposite arrow if the arrow just became
// active again.
if (oldValue == minVal)
drawLeftArrow(false);
if (oldValue == maxVal)
drawRightArrow(false);
MV_message(owner,evBroadcast,cmScrollBarChanged,this);
}
}
void MVScrollBar::setRange(int min,int max)
/****************************************************************************
*
* Function: MVScrollBar::setRange
* Parameters: min - New minimum value for scroll bar
* max - New maximum value for scroll bar
*
* Description: Sets the minimum and maximum values for the scroll bar.
*
****************************************************************************/
{
minVal = min;
maxVal = max;
if (value < minVal) value = minVal;
if (value > maxVal) value = maxVal;
moveThumb();
if (owner)
owner->repaint(bounds);
}
bool Scrollbar::gestureEvent(const PlatformGestureEvent& evt)
{
switch (evt.type()) {
case PlatformEvent::GestureTapDown:
// FIXME(sky): Is setting the pressed part needed since we only have overlay scrollbars?
setPressedPart(NoPart);
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingView(evt.position()).x() : convertFromContainingView(evt.position()).y();
return true;
case PlatformEvent::GestureTapDownCancel:
case PlatformEvent::GestureScrollBegin:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos = m_pressedPos;
return true;
case PlatformEvent::GestureScrollUpdate:
case PlatformEvent::GestureScrollUpdateWithoutPropagation:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos += orientation() == HorizontalScrollbar ? evt.deltaX() : evt.deltaY();
moveThumb(m_scrollPos);
return true;
case PlatformEvent::GestureScrollEnd:
case PlatformEvent::GestureLongPress:
case PlatformEvent::GestureFlingStart:
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
case PlatformEvent::GestureTap: {
if (m_pressedPart != ThumbPart && m_pressedPart != NoPart && m_scrollableArea
&& m_scrollableArea->scroll(pressedPartScrollDirection(), pressedPartScrollGranularity())) {
return true;
}
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
}
default:
// By default, we assume that gestures don't deselect the scrollbar.
return true;
}
}
void MVScrollBar::changeValue(const MVPoint& global)
/****************************************************************************
*
* Function: MVScrollBar::changeValue
* Parameters: global - New location of the mouse cursor
*
* Description: Converts the mouse cursor location into a new value for
* the scroll bar thumb, repositions the thumb and redraws
* it.
*
****************************************************************************/
{
MVPoint p(global);
globalToLocal(p);
int left,right,start;
int oldValue = value;
if (vertical) {
start = p.y - 7;
left = leftArrow.bottom();
right = rightArrow.top();
}
else {
start = p.x - 7;
left = leftArrow.right();
right = rightArrow.left();
}
if (start < left) start = left;
if (start > right-(_MV_sysScrollBarWidth+1))
start = right-(_MV_sysScrollBarWidth+1);
value = ((2*(maxVal-minVal)*(long)(start-left))
/ (right-left-(_MV_sysScrollBarWidth+1))+1)/2;
if (oldValue != value) {
moveThumb();
drawThumb(sbThumb);
MV_message(owner,evBroadcast,cmScrollBarChanged,this);
}
}
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;
}
bool Scrollbar::gestureEvent(const PlatformGestureEvent& evt)
{
switch (evt.type()) {
case PlatformEvent::GestureTapDown:
setPressedPart(theme()->hitTest(this, evt.position()));
m_pressedPos = orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y();
return true;
case PlatformEvent::GestureTapDownCancel:
case PlatformEvent::GestureScrollBegin:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos = m_pressedPos;
return true;
case PlatformEvent::GestureScrollUpdate:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos += orientation() == HorizontalScrollbar ? evt.deltaX() : evt.deltaY();
moveThumb(m_scrollPos, false);
return true;
case PlatformEvent::GestureScrollEnd:
case PlatformEvent::GestureLongPress:
case PlatformEvent::GestureFlingStart:
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
case PlatformEvent::GestureTap: {
if (m_pressedPart != ThumbPart && m_pressedPart != NoPart && m_scrollableArea
&& m_scrollableArea->scroll(pressedPartScrollDirection(), pressedPartScrollGranularity())) {
return true;
}
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
}
default:
// By default, we assume that gestures don't deselect the scrollbar.
return true;
}
}
void Slider::keyPressed(wxKeyEvent& event) {
TraceOp.trc( "slider", TRCLEVEL_INFO, __LINE__, 9999, "keyPressed %d", event.GetKeyCode());
if( event.GetKeyCode() == WXK_DOWN) {
ThumbPos++;
}
else if( event.GetKeyCode() == WXK_UP) {
ThumbPos--;
}
else if( event.GetKeyCode() == WXK_PAGEDOWN) {
ThumbPos+=10;
}
else if( event.GetKeyCode() == WXK_PAGEUP) {
ThumbPos-=10;
}
else {
event.Skip();
return;
}
PrevWheelTime = SystemOp.getTick();
moveThumb();
}
bool Scrollbar::mouseMoved(const PlatformMouseEvent& evt)
{
if (m_pressedPart == ThumbPart) {
if (theme()->shouldSnapBackToDragOrigin(this, evt)) {
if (m_scrollableArea)
m_scrollableArea->scrollToOffsetWithoutAnimation(m_orientation, m_dragOrigin);
} else {
moveThumb(m_orientation == HorizontalScrollbar ?
convertFromContainingWindow(evt.pos()).x() :
convertFromContainingWindow(evt.pos()).y(), theme()->shouldDragDocumentInsteadOfThumb(this, evt));
}
return true;
}
if (m_pressedPart != NoPart)
m_pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.pos()).x() : convertFromContainingWindow(evt.pos()).y());
ScrollbarPart part = theme()->hitTest(this, evt);
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 true;
}
void MVScrollBar::setValue(int v)
/****************************************************************************
*
* Function: MVScrollBar::setValue
* Parameters: v - New value for the scroll bar
*
* Description: Sets the value for the scroll bar, and updates it.
*
****************************************************************************/
{
if (value == v)
return;
if (value < minVal) value = minVal; // Clamp to specified range
if (value > maxVal) value = maxVal;
if (value == minVal || v == minVal)
flags |= sbDirtyLeft;
if (value == maxVal || v == maxVal)
flags |= sbDirtyRight;
flags |= sbDirtyThumb;
value = v;
moveThumb();
update();
}
bool Scrollbar::gestureEvent(const PlatformGestureEvent& evt)
{
bool handled = false;
switch (evt.type()) {
case PlatformEvent::GestureTapDown:
setPressedPart(theme()->hitTest(this, evt.position()));
m_pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.position()).x() : convertFromContainingWindow(evt.position()).y());
return true;
case PlatformEvent::GestureTapDownCancel:
case PlatformEvent::GestureScrollBegin:
if (m_pressedPart == ThumbPart) {
m_scrollPos = m_pressedPos;
return true;
}
break;
case PlatformEvent::GestureScrollUpdate:
case PlatformEvent::GestureScrollUpdateWithoutPropagation:
if (m_pressedPart == ThumbPart) {
m_scrollPos += HorizontalScrollbar ? evt.deltaX() : evt.deltaY();
moveThumb(m_scrollPos, false);
return true;
}
break;
case PlatformEvent::GestureScrollEnd:
m_scrollPos = 0;
break;
case PlatformEvent::GestureTap:
if (m_pressedPart != ThumbPart && m_pressedPart != NoPart)
handled = m_scrollableArea && m_scrollableArea->scroll(pressedPartScrollDirection(), pressedPartScrollGranularity());
break;
default:
break;
}
setPressedPart(NoPart);
m_pressedPos = 0;
return handled;
}
bool Scrollbar::gestureEvent(const PlatformGestureEvent& evt,
bool* shouldUpdateCapture) {
DCHECK(shouldUpdateCapture);
switch (evt.type()) {
case PlatformEvent::GestureTapDown:
setPressedPart(theme().hitTest(*this, evt.position()));
m_pressedPos = orientation() == HorizontalScrollbar
? convertFromRootFrame(evt.position()).x()
: convertFromRootFrame(evt.position()).y();
*shouldUpdateCapture = true;
return true;
case PlatformEvent::GestureTapDownCancel:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos = m_pressedPos;
return true;
case PlatformEvent::GestureScrollBegin:
switch (evt.source()) {
case PlatformGestureSourceTouchpad:
// Update the state on GSB for touchpad since GestureTapDown
// is not generated by that device. Touchscreen uses the tap down
// gesture since the scrollbar enters a visual active state.
*shouldUpdateCapture = true;
setPressedPart(NoPart);
m_pressedPos = 0;
return true;
case PlatformGestureSourceTouchscreen:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos = m_pressedPos;
return true;
default:
ASSERT_NOT_REACHED();
return true;
}
break;
case PlatformEvent::GestureScrollUpdate:
switch (evt.source()) {
case PlatformGestureSourceTouchpad: {
FloatSize delta(-evt.deltaX(), -evt.deltaY());
if (m_scrollableArea &&
m_scrollableArea->userScroll(evt.deltaUnits(), delta)
.didScroll()) {
return true;
}
return false;
}
case PlatformGestureSourceTouchscreen:
if (m_pressedPart != ThumbPart)
return false;
m_scrollPos += orientation() == HorizontalScrollbar ? evt.deltaX()
: evt.deltaY();
moveThumb(m_scrollPos, false);
return true;
default:
ASSERT_NOT_REACHED();
return true;
}
break;
case PlatformEvent::GestureScrollEnd:
case PlatformEvent::GestureLongPress:
case PlatformEvent::GestureFlingStart:
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
case PlatformEvent::GestureTap: {
if (m_pressedPart != ThumbPart && m_pressedPart != NoPart &&
m_scrollableArea &&
m_scrollableArea
->userScroll(
pressedPartScrollGranularity(),
toScrollDelta(pressedPartScrollDirectionPhysical(), 1))
.didScroll()) {
return true;
}
m_scrollPos = 0;
m_pressedPos = 0;
setPressedPart(NoPart);
return false;
}
default:
// By default, we assume that gestures don't deselect the scrollbar.
return true;
}
}
void Slider::mouseReleased(wxMouseEvent& event)
{
TraceOp.trc( "slider", TRCLEVEL_DEBUG, __LINE__, 9999, "mouseReleased");
Drag = false;
moveThumb(true);
}