Control* createScrollbar(const Loader& e, int o) {
int min = e.attribute("min", 0);
int max = e.attribute("max", 10);
int value = e.attribute("value", min);
int width = e.attribute("width", 0);
int height= e.attribute("height", 0);
int event = e.attribute("event", 0);
if(width==0 && o==Scrollbar::VERTICAL) width=16;
else if(height==0 && o==Scrollbar::HORIZONTAL) height=16;
Scrollbar* c = new Scrollbar(o, width, height, min, max, e.style(), event);
c->setValue(value);
return c;
}
void AXObjectCache::postPlatformNotification(AccessibilityObject* obj, AXNotification notification)
{
if (obj && obj->isAccessibilityScrollbar() && notification == AXValueChanged) {
// Send document value changed on scrollbar value changed notification.
Scrollbar* scrollBar = static_cast<AccessibilityScrollbar*>(obj)->scrollbar();
if (!scrollBar || !scrollBar->parent() || !scrollBar->parent()->isFrameView())
return;
Document* document = static_cast<FrameView*>(scrollBar->parent())->frame()->document();
if (document != document->topDocument())
return;
obj = get(document->renderer());
}
if (!obj || !obj->document() || !obj->documentFrameView() || !obj->documentFrameView()->frame() || !obj->documentFrameView()->frame()->page())
return;
ChromeClient* client = obj->documentFrameView()->frame()->page()->chrome()->client();
if (!client)
return;
switch (notification) {
case AXActiveDescendantChanged:
if (!obj->document()->focusedNode() || (obj->node() != obj->document()->focusedNode()))
break;
// Calling handleFocusedUIElementChanged will focus the new active
// descendant and send the AXFocusedUIElementChanged notification.
handleFocusedUIElementChanged(0, obj->document()->focusedNode()->renderer());
break;
case AXAutocorrectionOccured:
case AXCheckedStateChanged:
case AXChildrenChanged:
case AXFocusedUIElementChanged:
case AXLayoutComplete:
case AXLiveRegionChanged:
case AXLoadComplete:
case AXMenuListValueChanged:
case AXRowCollapsed:
case AXRowCountChanged:
case AXRowExpanded:
case AXScrolledToAnchor:
case AXSelectedChildrenChanged:
case AXSelectedTextChanged:
case AXValueChanged:
case AXInvalidStatusChanged:
break;
}
client->postAccessibilityNotification(obj, notification);
}
IntRect ScrollbarThemeSafari::trackRect(Scrollbar& scrollbar, bool painting)
{
if (painting || !hasButtons(scrollbar))
return scrollbar.frameRect();
IntRect result;
int thickness = scrollbarThickness(scrollbar.controlSize());
if (scrollbar.orientation() == HorizontalScrollbar)
return IntRect(scrollbar.x() + cButtonLength[scrollbar.controlSize()], scrollbar.y(), scrollbar.width() - 2 * cButtonLength[scrollbar.controlSize()], thickness);
return IntRect(scrollbar.x(), scrollbar.y() + cButtonLength[scrollbar.controlSize()], thickness, scrollbar.height() - 2 * cButtonLength[scrollbar.controlSize()]);
}
void ScrollbarThemeSafari::paintThumb(GraphicsContext& graphicsContext, Scrollbar& scrollbar, const IntRect& thumbRect)
{
if (!SafariThemeLibrary())
return;
NSControlSize size = scrollbar.controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize;
ThemeControlState state = 0;
if (scrollbar.isScrollableAreaActive())
state |= ActiveState;
if (hasThumb(scrollbar))
state |= EnabledState;
if (scrollbar.pressedPart() == ThumbPart)
state |= PressedState;
paintThemePart(scrollbar.orientation() == VerticalScrollbar ? VScrollThumbPart : HScrollThumbPart, graphicsContext.platformContext(),
thumbRect, size, state);
}
void GtkAdjustmentWatcher::adjustmentValueChanged(GtkAdjustment* adjustment)
{
FrameView* frameView = core(m_webView)->mainFrame()->view();
Scrollbar* scrollbar = (adjustment == m_horizontalAdjustment.get()) ?
frameView->horizontalScrollbar() : frameView->verticalScrollbar();
if (!scrollbar)
return;
int newValue = static_cast<int>(gtk_adjustment_get_value(adjustment));
if (newValue != scrollbar->value()) {
m_handlingGtkAdjustmentChange = true;
frameView->scrollToOffsetWithoutAnimation(scrollbar->orientation(), newValue);
m_handlingGtkAdjustmentChange = false;
}
}
bool ScrollAnimator::handleWheelEvent(const PlatformWheelEvent& e)
{
Scrollbar* horizontalScrollbar = m_scrollableArea->horizontalScrollbar();
Scrollbar* verticalScrollbar = m_scrollableArea->verticalScrollbar();
// Accept the event if we have a scrollbar in that direction and can still
// scroll any further.
float deltaX = horizontalScrollbar ? e.deltaX() : 0;
float deltaY = verticalScrollbar ? e.deltaY() : 0;
bool handled = false;
#if PLATFORM(CHROMIUM) && !OS(DARWIN)
ScrollGranularity granularity = e.hasPreciseScrollingDeltas() ? ScrollByPrecisePixel : ScrollByPixel;
#else
ScrollGranularity granularity = ScrollByPixel;
#endif
IntSize maxForwardScrollDelta = m_scrollableArea->maximumScrollPosition() - m_scrollableArea->scrollPosition();
IntSize maxBackwardScrollDelta = m_scrollableArea->scrollPosition() - m_scrollableArea->minimumScrollPosition();
if ((deltaX < 0 && maxForwardScrollDelta.width() > 0)
|| (deltaX > 0 && maxBackwardScrollDelta.width() > 0)
|| (deltaY < 0 && maxForwardScrollDelta.height() > 0)
|| (deltaY > 0 && maxBackwardScrollDelta.height() > 0)) {
handled = true;
if (deltaY) {
if (e.granularity() == ScrollByPageWheelEvent) {
bool negative = deltaY < 0;
deltaY = max(max(static_cast<float>(m_scrollableArea->visibleHeight()) * Scrollbar::minFractionToStepWhenPaging(), static_cast<float>(m_scrollableArea->visibleHeight() - Scrollbar::maxOverlapBetweenPages())), 1.0f);
if (negative)
deltaY = -deltaY;
}
scroll(VerticalScrollbar, granularity, verticalScrollbar->pixelStep(), -deltaY);
}
if (deltaX) {
if (e.granularity() == ScrollByPageWheelEvent) {
bool negative = deltaX < 0;
deltaX = max(max(static_cast<float>(m_scrollableArea->visibleWidth()) * Scrollbar::minFractionToStepWhenPaging(), static_cast<float>(m_scrollableArea->visibleWidth() - Scrollbar::maxOverlapBetweenPages())), 1.0f);
if (negative)
deltaX = -deltaX;
}
scroll(HorizontalScrollbar, granularity, horizontalScrollbar->pixelStep(), -deltaX);
}
}
return handled;
}
IntRect ScrollbarThemeWin::trackRect(Scrollbar& scrollbar, bool)
{
int thickness = scrollbarThickness();
if (scrollbar.orientation() == HorizontalScrollbar) {
if (scrollbar.width() < 2 * thickness)
return IntRect();
return IntRect(scrollbar.x() + thickness, scrollbar.y(), scrollbar.width() - 2 * thickness, thickness);
}
if (scrollbar.height() < 2 * thickness)
return IntRect();
return IntRect(scrollbar.x(), scrollbar.y() + thickness, thickness, scrollbar.height() - 2 * thickness);
}
void AsyncScrollingCoordinator::frameViewLayoutUpdated(FrameView* frameView)
{
ASSERT(isMainThread());
ASSERT(m_page);
// If there isn't a root node yet, don't do anything. We'll be called again after creating one.
if (!m_scrollingStateTree->rootStateNode())
return;
// Compute the region of the page that we can't do fast scrolling for. This currently includes
// all scrollable areas, such as subframes, overflow divs and list boxes. We need to do this even if the
// frame view whose layout was updated is not the main frame.
Region nonFastScrollableRegion = computeNonFastScrollableRegion(&m_page->mainFrame(), IntPoint());
// In the future, we may want to have the ability to set non-fast scrolling regions for more than
// just the root node. But right now, this concept only applies to the root.
setNonFastScrollableRegionForNode(nonFastScrollableRegion, m_scrollingStateTree->rootStateNode());
if (!coordinatesScrollingForFrameView(frameView))
return;
ScrollingStateScrollingNode* node = toScrollingStateScrollingNode(m_scrollingStateTree->stateNodeForID(frameView->scrollLayerID()));
if (!node)
return;
Scrollbar* verticalScrollbar = frameView->verticalScrollbar();
Scrollbar* horizontalScrollbar = frameView->horizontalScrollbar();
setScrollbarPaintersFromScrollbarsForNode(verticalScrollbar, horizontalScrollbar, node);
node->setFrameScaleFactor(frameView->frame().frameScaleFactor());
node->setHeaderHeight(frameView->headerHeight());
node->setFooterHeight(frameView->footerHeight());
node->setScrollOrigin(frameView->scrollOrigin());
node->setViewportConstrainedObjectRect(FloatRect(FloatPoint(), frameView->visibleContentRect().size()));
node->setTotalContentsSize(frameView->totalContentsSize());
ScrollableAreaParameters scrollParameters;
scrollParameters.horizontalScrollElasticity = frameView->horizontalScrollElasticity();
scrollParameters.verticalScrollElasticity = frameView->verticalScrollElasticity();
scrollParameters.hasEnabledHorizontalScrollbar = horizontalScrollbar && horizontalScrollbar->enabled();
scrollParameters.hasEnabledVerticalScrollbar = verticalScrollbar && verticalScrollbar->enabled();
scrollParameters.horizontalScrollbarMode = frameView->horizontalScrollbarMode();
scrollParameters.verticalScrollbarMode = frameView->verticalScrollbarMode();
node->setScrollableAreaParameters(scrollParameters);
}
bool ScrollbarThemeWin::shouldSnapBackToDragOrigin(Scrollbar& 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);
}
IntRect ScrollbarThemeSafari::forwardButtonRect(Scrollbar& scrollbar, ScrollbarPart part, bool painting)
{
IntRect result;
// Windows just has single arrows.
if (part == ForwardButtonStartPart)
return result;
int thickness = scrollbarThickness(scrollbar.controlSize());
if (scrollbar.orientation() == HorizontalScrollbar)
result = IntRect(scrollbar.x() + scrollbar.width() - cButtonLength[scrollbar.controlSize()], scrollbar.y(), cButtonLength[scrollbar.controlSize()], thickness);
else
result = IntRect(scrollbar.x(), scrollbar.y() + scrollbar.height() - cButtonLength[scrollbar.controlSize()], thickness, cButtonLength[scrollbar.controlSize()]);
if (painting)
return buttonRepaintRect(result, scrollbar.orientation(), scrollbar.controlSize(), false);
return result;
}
IntRect ScrollbarThemeSafari::backButtonRect(Scrollbar& scrollbar, ScrollbarPart part, bool painting)
{
IntRect result;
// Windows just has single arrows.
if (part == BackButtonEndPart)
return result;
int thickness = scrollbarThickness(scrollbar.controlSize());
if (scrollbar.orientation() == HorizontalScrollbar)
result = IntRect(scrollbar.x(), scrollbar.y(), cButtonLength[scrollbar.controlSize()], thickness);
else
result = IntRect(scrollbar.x(), scrollbar.y(), thickness, cButtonLength[scrollbar.controlSize()]);
if (painting)
return buttonRepaintRect(result, scrollbar.orientation(), scrollbar.controlSize(), true);
return result;
}
void PaintInvalidationCapableScrollableArea::willRemoveScrollbar(Scrollbar& scrollbar, ScrollbarOrientation orientation)
{
if (!scrollbar.isCustomScrollbar()
&& !(orientation == HorizontalScrollbar ? layerForHorizontalScrollbar() : layerForVerticalScrollbar()))
boxForScrollControlPaintInvalidation().invalidateDisplayItemClient(scrollbar);
ScrollableArea::willRemoveScrollbar(scrollbar, orientation);
}
bool handleTabPadding(const EventArgs& e)
{
Scrollbar* sb = static_cast<Scrollbar*>(
static_cast<const WindowEventArgs&>(e).window);
// Check if the window exists
Window* root = d_guiContext->getRootWindow();
if (root->isChild("Frame/TabControl"))
{
static_cast<TabControl*>(root->getChild(
"Frame/TabControl"))->setTabTextPadding(
UDim(0, sb->getScrollPosition()));
}
return true;
}
bool handleTabHeight(const EventArgs& e)
{
Scrollbar* sb = static_cast<Scrollbar*>(
static_cast<const WindowEventArgs&>(e).window);
// Check if the window exists
Window* root = d_guiContext->getRootWindow();
if (root->isChild("Frame/TabControl"))
{
static_cast<TabControl*>(root->getChild(
"Frame/TabControl"))->setTabHeight(
UDim(0, sb->getScrollPosition()));
}
// The return value mainly sais that we handled it, not if something failed.
return true;
}
static void paintGripper(Scrollbar& scrollbar, HDC hdc, const IntRect& rect)
{
if (!scrollbarTheme)
return; // Classic look has no gripper.
int state;
if (!scrollbar.enabled())
state = TS_DISABLED;
else if (scrollbar.pressedPart() == ThumbPart)
state = TS_ACTIVE; // Thumb always stays active once pressed.
else if (scrollbar.hoveredPart() == ThumbPart)
state = TS_HOVER;
else
state = TS_NORMAL;
RECT themeRect(rect);
DrawThemeBackground(scrollbarTheme, hdc, scrollbar.orientation() == HorizontalScrollbar ? SP_GRIPPERHOR : SP_GRIPPERVERT, state, &themeRect, 0);
}
/************************************************************************
Handle mouse wheel event
************************************************************************/
void ScrolledItemListBase::onMouseWheel(MouseEventArgs& e)
{
ItemListBase::onMouseWheel(e);
size_t count = getItemCount();
Scrollbar* v = getVertScrollbar();
// dont do anything if we are no using scrollbars
// or have'nt got any items
if (!v->isVisible(true) || !count)
{
return;
}
float pixH = d_pane->getUnclippedOuterRect().getHeight();
float delta = (pixH/float(count)) * -e.wheelChange;
v->setScrollPosition(v->getScrollPosition() + delta);
++e.handled;
}
void ScrollbarThemeSafari::paintButton(GraphicsContext& graphicsContext, Scrollbar& scrollbar, const IntRect& buttonRect, ScrollbarPart part)
{
if (!SafariThemeLibrary())
return;
NSControlSize size = scrollbar.controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize;
ThemeControlState state = 0;
if (scrollbar.isScrollableAreaActive())
state |= ActiveState;
if (hasButtons(scrollbar))
state |= EnabledState;
if (scrollbar.pressedPart() == part)
state |= PressedState;
if (part == BackButtonStartPart)
paintThemePart(scrollbar.orientation() == VerticalScrollbar ? ScrollUpArrowPart : ScrollLeftArrowPart, graphicsContext.platformContext(),
buttonRect, size, state);
else if (part == ForwardButtonEndPart)
paintThemePart(scrollbar.orientation() == VerticalScrollbar ? ScrollDownArrowPart : ScrollRightArrowPart, graphicsContext.platformContext(),
buttonRect, size, state);
}
void ScrollingCoordinatorChromium::scrollableAreaScrollbarLayerDidChange(ScrollableArea* scrollableArea, ScrollbarOrientation orientation)
{
#if OS(DARWIN)
static const bool platformSupportsCoordinatedScrollbar = false;
static const bool platformSupportsMainFrameOnly = false; // Don't care.
#elif OS(WINDOWS)
static const bool platformSupportsCoordinatedScrollbar = true;
static const bool platformSupportsMainFrameOnly = true;
#else
static const bool platformSupportsCoordinatedScrollbar = true;
static const bool platformSupportsMainFrameOnly = false;
#endif
if (!platformSupportsCoordinatedScrollbar)
return;
bool isMainFrame = (scrollableArea == static_cast<ScrollableArea*>(m_page->mainFrame()->view()));
if (!isMainFrame && platformSupportsMainFrameOnly)
return;
GraphicsLayer* scrollbarGraphicsLayer = orientation == HorizontalScrollbar ? horizontalScrollbarLayerForScrollableArea(scrollableArea) : verticalScrollbarLayerForScrollableArea(scrollableArea);
if (scrollbarGraphicsLayer) {
Scrollbar* scrollbar = orientation == HorizontalScrollbar ? scrollableArea->horizontalScrollbar() : scrollableArea->verticalScrollbar();
if (scrollbar->isCustomScrollbar()) {
detachScrollbarLayer(scrollbarGraphicsLayer);
return;
}
WebScrollbarLayer* scrollbarLayer = getWebScrollbarLayer(scrollableArea, orientation);
if (!scrollbarLayer)
scrollbarLayer = addWebScrollbarLayer(scrollableArea, orientation, createScrollbarLayer(scrollbar));
// Root layer non-overlay scrollbars should be marked opaque to disable
// blending.
bool isOpaqueScrollbar = !scrollbar->isOverlayScrollbar();
if (!scrollbarGraphicsLayer->contentsOpaque())
scrollbarGraphicsLayer->setContentsOpaque(isMainFrame && isOpaqueScrollbar);
scrollbarLayer->layer()->setOpaque(scrollbarGraphicsLayer->contentsOpaque());
setupScrollbarLayer(scrollbarGraphicsLayer, scrollbarLayer, scrollingWebLayerForScrollableArea(scrollableArea));
} else
removeWebScrollbarLayer(scrollableArea, orientation);
}
void OptionsDialog::_buildFrameAudio()
{
#ifdef _SOUNDMANAGER_H_
Scrollbar* sc;
Checkbox* c;
int y = 0;
mFrameAudio->mSortable = false;
new Label(mFrameAudio, "", rect(0,y), "Volume");
sc = new Scrollbar(mFrameAudio, "vol", rect(95, y, 150, 20), HORIZONTAL, MAX_VOLUME, 10, 0, NULL);
sc->SetValue( config.GetParamInt("sound", "volume") );
y += 25;
c = new Checkbox(mFrameAudio, "", rect(0,y), "Enable Voice Chat", 0);
c->SetState( 0 );
c->mHoverText = "Haha, you wish";
y += 25;
#endif
}
float FalagardScrollbar::getAdjustDirectionFromPoint(const Vector2f& pt) const
{
Scrollbar* w = (Scrollbar*)d_window;
const Rectf& absrect(w->getThumb()->getUnclippedOuterRect().get());
if ((d_vertical && (pt.d_y > absrect.bottom())) ||
(!d_vertical && (pt.d_x > absrect.right())))
{
return 1;
}
else if ((d_vertical && (pt.d_y < absrect.top())) ||
(!d_vertical && (pt.d_x < absrect.left())))
{
return -1;
}
else
{
return 0;
}
}
void ScrollableArea::scrollPositionChanged(const DoublePoint& position, ScrollType scrollType)
{
TRACE_EVENT0("blink", "ScrollableArea::scrollPositionChanged");
DoublePoint oldPosition = scrollPositionDouble();
DoublePoint truncatedPosition = shouldUseIntegerScrollOffset() ? flooredIntPoint(position) : position;
// Tell the derived class to scroll its contents.
setScrollOffset(truncatedPosition, scrollType);
Scrollbar* verticalScrollbar = this->verticalScrollbar();
// Tell the scrollbars to update their thumb postions.
if (Scrollbar* horizontalScrollbar = this->horizontalScrollbar()) {
horizontalScrollbar->offsetDidChange();
if (horizontalScrollbar->isOverlayScrollbar() && !hasLayerForHorizontalScrollbar()) {
if (!verticalScrollbar)
horizontalScrollbar->invalidate();
else {
// If there is both a horizontalScrollbar and a verticalScrollbar,
// then we must also invalidate the corner between them.
IntRect boundsAndCorner = horizontalScrollbar->boundsRect();
boundsAndCorner.setWidth(boundsAndCorner.width() + verticalScrollbar->width());
horizontalScrollbar->invalidateRect(boundsAndCorner);
}
}
}
if (verticalScrollbar) {
verticalScrollbar->offsetDidChange();
if (verticalScrollbar->isOverlayScrollbar() && !hasLayerForVerticalScrollbar())
verticalScrollbar->invalidate();
}
if (scrollPositionDouble() != oldPosition) {
// FIXME: Pass in DoubleSize. crbug.com/414283.
scrollAnimator()->notifyContentAreaScrolled(toFloatSize(scrollPositionDouble() - oldPosition));
}
scrollAnimator()->setCurrentPosition(toFloatPoint(position));
}
//----------------------------------------------------------------------------//
bool ScrollablePane::handleContentAreaChange(const EventArgs&)
{
Scrollbar* vertScrollbar = getVertScrollbar();
Scrollbar* horzScrollbar = getHorzScrollbar();
// get updated extents of the content
Rect contentArea(getScrolledContainer()->getContentArea());
// calculate any change on the top and left edges.
float xChange = contentArea.d_left - d_contentRect.d_left;
float yChange = contentArea.d_top - d_contentRect.d_top;
// store new content extents information
d_contentRect = contentArea;
configureScrollbars();
// update scrollbar positions (which causes container pane to be moved as needed).
horzScrollbar->setScrollPosition(horzScrollbar->getScrollPosition() - xChange);
vertScrollbar->setScrollPosition(vertScrollbar->getScrollPosition() - yChange);
// this call may already have been made if the scroll positions changed. The call
// is required here for cases where the top/left 'bias' has changed; in which
// case the scroll position notification may or may not have been fired.
if (xChange || yChange)
updateContainerPosition();
// fire event
WindowEventArgs args(this);
onContentPaneChanged(args);
return true;
}
IntRect ScrollbarThemeWin::backButtonRect(Scrollbar& scrollbar, ScrollbarPart part, bool)
{
// Windows just has single arrows.
if (part == BackButtonEndPart)
return IntRect();
// Our desired rect is essentially 17x17.
// Our actual rect will shrink to half the available space when
// we have < 34 pixels left. This allows the scrollbar
// to scale down and function even at tiny sizes.
int thickness = scrollbarThickness();
if (scrollbar.orientation() == HorizontalScrollbar)
return IntRect(scrollbar.x(), scrollbar.y(),
scrollbar.width() < 2 * thickness ? scrollbar.width() / 2 : thickness, thickness);
return IntRect(scrollbar.x(), scrollbar.y(),
thickness, scrollbar.height() < 2 * thickness ? scrollbar.height() / 2 : thickness);
}
bool ScrollableArea::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
{
ScrollbarOrientation orientation;
Scrollbar* scrollbar;
if (direction == ScrollUp || direction == ScrollDown) {
orientation = VerticalScrollbar;
scrollbar = verticalScrollbar();
} else {
orientation = HorizontalScrollbar;
scrollbar = horizontalScrollbar();
}
if (!scrollbar)
return false;
float step = 0;
switch (granularity) {
case ScrollByLine:
step = scrollbar->lineStep();
break;
case ScrollByPage:
step = scrollbar->pageStep();
break;
case ScrollByDocument:
step = scrollbar->totalSize();
break;
case ScrollByPixel:
case ScrollByPrecisePixel:
step = scrollbar->pixelStep();
break;
case ScrollByPixelVelocity:
break;
}
if (granularity != ScrollByPixelVelocity && (direction == ScrollUp || direction == ScrollLeft))
multiplier = -multiplier;
return scrollAnimator()->scroll(orientation, granularity, step, multiplier);
}
bool Layout::scrollEvent(GdkEventScroll* event)
{
XOJ_CHECK_TYPE(Layout);
Scrollbar* scroll;
if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_DOWN)
{
scroll = this->scrollVertical;
}
else
{
scroll = this->scrollHorizontal;
}
if (scroll && gtk_widget_get_visible(scroll->getWidget()))
{
double delta = scroll->getWheelDelta(event->direction);
scroll->scroll(delta);
return true;
}
return false;
}
void ScrollableArea::scrollPositionChanged(const IntPoint& position)
{
#if PLATFORM(CHROMIUM)
TRACE_EVENT0("webkit", "ScrollableArea::scrollPositionChanged");
#endif
IntPoint oldPosition = scrollPosition();
// Tell the derived class to scroll its contents.
setScrollOffset(position);
Scrollbar* verticalScrollbar = this->verticalScrollbar();
// Tell the scrollbars to update their thumb postions.
if (Scrollbar* horizontalScrollbar = this->horizontalScrollbar()) {
horizontalScrollbar->offsetDidChange();
if (horizontalScrollbar->isOverlayScrollbar() && !hasLayerForHorizontalScrollbar()) {
if (!verticalScrollbar)
horizontalScrollbar->invalidate();
else {
// If there is both a horizontalScrollbar and a verticalScrollbar,
// then we must also invalidate the corner between them.
IntRect boundsAndCorner = horizontalScrollbar->boundsRect();
boundsAndCorner.setWidth(boundsAndCorner.width() + verticalScrollbar->width());
horizontalScrollbar->invalidateRect(boundsAndCorner);
}
}
}
if (verticalScrollbar) {
verticalScrollbar->offsetDidChange();
if (verticalScrollbar->isOverlayScrollbar() && !hasLayerForVerticalScrollbar())
verticalScrollbar->invalidate();
}
if (scrollPosition() != oldPosition)
scrollAnimator()->notifyContentAreaScrolled();
}
void UpdateData()
{
double gl_rate = _pf_data[PFE_GAMELOOP].GetRate();
this->rate_gameloop.SetRate(gl_rate, _pf_data[PFE_GAMELOOP].expected_rate);
this->speed_gameloop.SetRate(gl_rate / _pf_data[PFE_GAMELOOP].expected_rate, 1.0);
if (this->small) return; // in small mode, this is everything needed
this->rate_drawing.SetRate(_pf_data[PFE_DRAWING].GetRate(), _pf_data[PFE_DRAWING].expected_rate);
int new_active = 0;
for (PerformanceElement e = PFE_FIRST; e < PFE_MAX; e++) {
this->times_shortterm[e].SetTime(_pf_data[e].GetAverageDurationMilliseconds(8), MILLISECONDS_PER_TICK);
this->times_longterm[e].SetTime(_pf_data[e].GetAverageDurationMilliseconds(NUM_FRAMERATE_POINTS), MILLISECONDS_PER_TICK);
if (_pf_data[e].num_valid > 0) new_active++;
}
if (new_active != this->num_active) {
this->num_active = new_active;
Scrollbar *sb = this->GetScrollbar(WID_FRW_SCROLLBAR);
sb->SetCount(this->num_active);
sb->SetCapacity(min(this->num_displayed, this->num_active));
this->ReInit();
}
}
void ScrollbarThemeAura::paintThumb(GraphicsContext& gc,
const Scrollbar& scrollbar,
const IntRect& rect) {
if (DrawingRecorder::useCachedDrawingIfPossible(gc, scrollbar,
DisplayItem::kScrollbarThumb))
return;
DrawingRecorder recorder(gc, scrollbar, DisplayItem::kScrollbarThumb, rect);
WebThemeEngine::State state;
WebCanvas* canvas = gc.canvas();
if (scrollbar.pressedPart() == ThumbPart)
state = WebThemeEngine::StatePressed;
else if (scrollbar.hoveredPart() == ThumbPart)
state = WebThemeEngine::StateHover;
else
state = WebThemeEngine::StateNormal;
Platform::current()->themeEngine()->paint(
canvas, scrollbar.orientation() == HorizontalScrollbar
? WebThemeEngine::PartScrollbarHorizontalThumb
: WebThemeEngine::PartScrollbarVerticalThumb,
state, WebRect(rect), nullptr);
}
/************************************************************************
Initialise
************************************************************************/
void ScrolledItemListBase::initialiseComponents()
{
// Only process the content pane if it hasn't been done in the past
// NOTE: This ensures that a duplicate content pane is not created. An example where
// this would be possible would be when changing the Look'N'Feel of the widget
// (for instance an ItemListBox), an operation which would reconstruct the child components
// of the widget by destroying the previous ones and creating new ones with the
// new Look'N'Feel. However, since the content pane is not defined in the
// look and feel file and thus not associated with the look'N'Feel itself
// but instead created here manually, the destruction would not contemplate the content
// pane itself, so when the children would be rebuilt, a duplicate content pane
// would be attempted (and an exception would be issued).
if(!d_pane)
{
// IMPORTANT:
// we must do this before the base class handling or we'll lose the onChildRemoved subscriber!!!
d_pane = WindowManager::getSingletonPtr()->createWindow("ClippedContainer", d_name+ContentPaneNameSuffix);
// set up clipping
static_cast<ClippedContainer*>(d_pane)->setClipperWindow(this);
addChildWindow(d_pane);
}
// base class handling
ItemListBase::initialiseComponents();
// set default pane position
Rect r = getItemRenderArea();
d_pane->setPosition(UVector2(cegui_absdim(r.d_left),cegui_absdim(r.d_top)));
// init scrollbars
Scrollbar* v = getVertScrollbar();
Scrollbar* h = getHorzScrollbar();
v->setAlwaysOnTop(true);
h->setAlwaysOnTop(true);
v->subscribeEvent(Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrolledItemListBase::handle_VScroll,this));
h->subscribeEvent(Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrolledItemListBase::handle_HScroll,this));
v->hide();
h->hide();
}
void ScrollbarThemeAura::paintButton(GraphicsContext& gc,
const Scrollbar& scrollbar,
const IntRect& rect,
ScrollbarPart part) {
DisplayItem::Type displayItemType = buttonPartToDisplayItemType(part);
if (DrawingRecorder::useCachedDrawingIfPossible(gc, scrollbar,
displayItemType))
return;
PartPaintingParams params =
buttonPartPaintingParams(scrollbar, scrollbar.currentPos(), part);
if (!params.shouldPaint)
return;
DrawingRecorder recorder(gc, scrollbar, displayItemType, rect);
Platform::current()->themeEngine()->paint(
gc.canvas(), params.part, params.state, WebRect(rect), nullptr);
}