auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 451 deletions

diff --git a/WebCore/platform/Scrollbar.cpp b/WebCore/platform/Scrollbar.cpp
deleted file mode 100644
index 0c7d854..0000000
--- a/WebCore/platform/Scrollbar.cpp
+++ /dev/null
@@ -1,451 +0,0 @@
-/*
- * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "Scrollbar.h"
-
-#include "EventHandler.h"
-#include "Frame.h"
-#include "FrameView.h"
-#include "GraphicsContext.h"
-#include "PlatformMouseEvent.h"
-#include "ScrollbarClient.h"
-#include "ScrollbarTheme.h"
-
-#include <algorithm>
-
-using std::max;
-using std::min;
-
-namespace WebCore {
-
-#if !PLATFORM(GTK)
-PassRefPtr<Scrollbar> Scrollbar::createNativeScrollbar(ScrollbarClient* client, ScrollbarOrientation orientation, ScrollbarControlSize size)
-{
-    return adoptRef(new Scrollbar(client, orientation, size));
-}
-#endif
-
-Scrollbar::Scrollbar(ScrollbarClient* client, ScrollbarOrientation orientation, ScrollbarControlSize controlSize,
-                     ScrollbarTheme* theme)
-    : m_client(client)
-    , m_orientation(orientation)
-    , m_controlSize(controlSize)
-    , m_theme(theme)
-    , m_visibleSize(0)
-    , m_totalSize(0)
-    , m_currentPos(0)
-    , m_lineStep(0)
-    , m_pageStep(0)
-    , m_pixelStep(1)
-    , m_hoveredPart(NoPart)
-    , m_pressedPart(NoPart)
-    , m_pressedPos(0)
-    , m_enabled(true)
-    , m_scrollTimer(this, &Scrollbar::autoscrollTimerFired)
-    , m_overlapsResizer(false)
-    , m_suppressInvalidation(false)
-{
-    if (!m_theme)
-        m_theme = ScrollbarTheme::nativeTheme();
-
-    m_theme->registerScrollbar(this);
-
-    // FIXME: This is ugly and would not be necessary if we fix cross-platform code to actually query for
-    // scrollbar thickness and use it when sizing scrollbars (rather than leaving one dimension of the scrollbar
-    // alone when sizing).
-    int thickness = m_theme->scrollbarThickness(controlSize);
-    Widget::setFrameRect(IntRect(0, 0, thickness, thickness));
-}
-
-Scrollbar::~Scrollbar()
-{
-    stopTimerIfNeeded();
-    
-    m_theme->unregisterScrollbar(this);
-}
-
-bool Scrollbar::setValue(int v)
-{
-    v = max(min(v, m_totalSize - m_visibleSize), 0);
-    if (value() == v)
-        return false; // Our value stayed the same.
-    m_currentPos = v;
-
-    updateThumbPosition();
-
-    if (client())
-        client()->valueChanged(this);
-    
-    return true;
-}
-
-void Scrollbar::setProportion(int visibleSize, int totalSize)
-{
-    if (visibleSize == m_visibleSize && totalSize == m_totalSize)
-        return;
-
-    m_visibleSize = visibleSize;
-    m_totalSize = totalSize;
-
-    updateThumbProportion();
-}
-
-void Scrollbar::setSteps(int lineStep, int pageStep, int pixelsPerStep)
-{
-    m_lineStep = lineStep;
-    m_pageStep = pageStep;
-    m_pixelStep = 1.0f / pixelsPerStep;
-}
-
-bool Scrollbar::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
-{
-    float step = 0;
-    if ((direction == ScrollUp && m_orientation == VerticalScrollbar) || (direction == ScrollLeft && m_orientation == HorizontalScrollbar))
-        step = -1;
-    else if ((direction == ScrollDown && m_orientation == VerticalScrollbar) || (direction == ScrollRight && m_orientation == HorizontalScrollbar)) 
-        step = 1;
-    
-    if (granularity == ScrollByLine)
-        step *= m_lineStep;
-    else if (granularity == ScrollByPage)
-        step *= m_pageStep;
-    else if (granularity == ScrollByDocument)
-        step *= m_totalSize;
-    else if (granularity == ScrollByPixel)
-        step *= m_pixelStep;
-        
-    float newPos = m_currentPos + step * multiplier;
-    float maxPos = m_totalSize - m_visibleSize;
-    newPos = max(min(newPos, maxPos), 0.0f);
-
-    if (newPos == m_currentPos)
-        return false;
-    
-    int oldValue = value();
-    m_currentPos = newPos;
-    updateThumbPosition();
-    
-    if (value() != oldValue && client())
-        client()->valueChanged(this);
-    
-    // return true even if the integer value did not change so that scroll event gets eaten
-    return true;
-}
-
-void Scrollbar::updateThumbPosition()
-{
-    theme()->invalidateParts(this, ForwardTrackPart | BackTrackPart | ThumbPart);
-}
-
-void Scrollbar::updateThumbProportion()
-{
-    theme()->invalidateParts(this, ForwardTrackPart | BackTrackPart | ThumbPart);
-}
-
-void Scrollbar::paint(GraphicsContext* context, const IntRect& damageRect)
-{
-    if (context->updatingControlTints() && theme()->supportsControlTints()) {
-        invalidate();
-        return;
-    }
-        
-    if (context->paintingDisabled() || !frameRect().intersects(damageRect))
-        return;
-
-    if (!theme()->paint(this, context, damageRect))
-        Widget::paint(context, damageRect);
-}
-
-void Scrollbar::autoscrollTimerFired(Timer<Scrollbar>*)
-{
-    autoscrollPressedPart(theme()->autoscrollTimerDelay());
-}
-
-static bool thumbUnderMouse(Scrollbar* scrollbar)
-{
-    int thumbPos = scrollbar->theme()->trackPosition(scrollbar) + scrollbar->theme()->thumbPosition(scrollbar);
-    int thumbLength = scrollbar->theme()->thumbLength(scrollbar);
-    return scrollbar->pressedPos() >= thumbPos && scrollbar->pressedPos() < thumbPos + thumbLength;
-}
-
-void Scrollbar::autoscrollPressedPart(double delay)
-{
-    // Don't do anything for the thumb or if nothing was pressed.
-    if (m_pressedPart == ThumbPart || m_pressedPart == NoPart)
-        return;
-
-    // Handle the track.
-    if ((m_pressedPart == BackTrackPart || m_pressedPart == ForwardTrackPart) && thumbUnderMouse(this)) {
-        theme()->invalidatePart(this, m_pressedPart);
-        setHoveredPart(ThumbPart);
-        return;
-    }
-
-    // Handle the arrows and track.
-    if (scroll(pressedPartScrollDirection(), pressedPartScrollGranularity()))
-        startTimerIfNeeded(delay);
-}
-
-void Scrollbar::startTimerIfNeeded(double delay)
-{
-    // Don't do anything for the thumb.
-    if (m_pressedPart == ThumbPart)
-        return;
-
-    // Handle the track.  We halt track scrolling once the thumb is level
-    // with us.
-    if ((m_pressedPart == BackTrackPart || m_pressedPart == ForwardTrackPart) && thumbUnderMouse(this)) {
-        theme()->invalidatePart(this, m_pressedPart);
-        setHoveredPart(ThumbPart);
-        return;
-    }
-
-    // We can't scroll if we've hit the beginning or end.
-    ScrollDirection dir = pressedPartScrollDirection();
-    if (dir == ScrollUp || dir == ScrollLeft) {
-        if (m_currentPos == 0)
-            return;
-    } else {
-        if (m_currentPos == maximum())
-            return;
-    }
-
-    m_scrollTimer.startOneShot(delay);
-}
-
-void Scrollbar::stopTimerIfNeeded()
-{
-    if (m_scrollTimer.isActive())
-        m_scrollTimer.stop();
-}
-
-ScrollDirection Scrollbar::pressedPartScrollDirection()
-{
-    if (m_orientation == HorizontalScrollbar) {
-        if (m_pressedPart == BackButtonStartPart || m_pressedPart == BackButtonEndPart || m_pressedPart == BackTrackPart)
-            return ScrollLeft;
-        return ScrollRight;
-    } else {
-        if (m_pressedPart == BackButtonStartPart || m_pressedPart == BackButtonEndPart || m_pressedPart == BackTrackPart)
-            return ScrollUp;
-        return ScrollDown;
-    }
-}
-
-ScrollGranularity Scrollbar::pressedPartScrollGranularity()
-{
-    if (m_pressedPart == BackButtonStartPart || m_pressedPart == BackButtonEndPart ||  m_pressedPart == ForwardButtonStartPart || m_pressedPart == ForwardButtonEndPart)
-        return ScrollByLine;
-    return ScrollByPage;
-}
-
-void Scrollbar::moveThumb(int pos)
-{
-    // Drag the thumb.
-    int thumbPos = theme()->thumbPosition(this);
-    int thumbLen = theme()->thumbLength(this);
-    int trackLen = theme()->trackLength(this);
-    int maxPos = trackLen - thumbLen;
-    int delta = pos - pressedPos();
-    if (delta > 0)
-        delta = min(maxPos - thumbPos, delta);
-    else if (delta < 0)
-        delta = max(-thumbPos, delta);
-    if (delta) {
-        setValue(static_cast<int>(static_cast<float>(thumbPos + delta) * maximum() / (trackLen - thumbLen)));
-        setPressedPos(pressedPos() + theme()->thumbPosition(this) - thumbPos);
-    }
-}
-
-void Scrollbar::setHoveredPart(ScrollbarPart part)
-{
-    if (part == m_hoveredPart)
-        return;
-
-    if ((m_hoveredPart == NoPart || part == NoPart) && theme()->invalidateOnMouseEnterExit())
-        invalidate();  // Just invalidate the whole scrollbar, since the buttons at either end change anyway.
-    else if (m_pressedPart == NoPart) {
-        theme()->invalidatePart(this, part);
-        theme()->invalidatePart(this, m_hoveredPart);
-    }
-    m_hoveredPart = part;
-}
-
-void Scrollbar::setPressedPart(ScrollbarPart part)
-{
-    if (m_pressedPart != NoPart)
-        theme()->invalidatePart(this, m_pressedPart);
-    m_pressedPart = part;
-    if (m_pressedPart != NoPart)
-        theme()->invalidatePart(this, m_pressedPart);
-}
-
-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;
-}
-
-bool Scrollbar::mouseExited()
-{
-    setHoveredPart(NoPart);
-    return true;
-}
-
-bool Scrollbar::mouseUp()
-{
-    setPressedPart(NoPart);
-    m_pressedPos = 0;
-    stopTimerIfNeeded();
-
-    if (parent() && parent()->isFrameView())
-        static_cast<FrameView*>(parent())->frame()->eventHandler()->setMousePressed(false);
-
-    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));
-    int pressedPos = (orientation() == HorizontalScrollbar ? convertFromContainingWindow(evt.pos()).x() : convertFromContainingWindow(evt.pos()).y());
-    
-    if (theme()->shouldCenterOnThumb(this, evt)) {
-        setHoveredPart(ThumbPart);
-        setPressedPart(ThumbPart);
-        int thumbLen = theme()->thumbLength(this);
-        int desiredPos = pressedPos - thumbLen / 2;
-        // Set the pressed position to the top 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);
-        moveThumb(desiredPos);
-        return true;
-    }
-    
-    m_pressedPos = pressedPos;
-
-    autoscrollPressedPart(theme()->initialAutoscrollTimerDelay());
-    return true;
-}
-
-void Scrollbar::setFrameRect(const IntRect& rect)
-{
-    // Get our window resizer rect and see if we overlap.  Adjust to avoid the overlap
-    // if necessary.
-    IntRect adjustedRect(rect);
-    if (parent()) {
-        bool overlapsResizer = false;
-        ScrollView* view = parent();
-        IntRect resizerRect = view->convertFromContainingWindow(view->windowResizerRect());
-        if (rect.intersects(resizerRect)) {
-            if (orientation() == HorizontalScrollbar) {
-                int overlap = rect.right() - resizerRect.x();
-                if (overlap > 0 && resizerRect.right() >= rect.right()) {
-                    adjustedRect.setWidth(rect.width() - overlap);
-                    overlapsResizer = true;
-                }
-            } else {
-                int overlap = rect.bottom() - resizerRect.y();
-                if (overlap > 0 && resizerRect.bottom() >= rect.bottom()) {
-                    adjustedRect.setHeight(rect.height() - overlap);
-                    overlapsResizer = true;
-                }
-            }
-        }
-
-        if (overlapsResizer != m_overlapsResizer) {
-            m_overlapsResizer = overlapsResizer;
-            view->adjustScrollbarsAvoidingResizerCount(m_overlapsResizer ? 1 : -1);
-        }
-    }
-
-    Widget::setFrameRect(adjustedRect);
-}
-
-void Scrollbar::setParent(ScrollView* parentView)
-{
-    if (!parentView && m_overlapsResizer && parent())
-        parent()->adjustScrollbarsAvoidingResizerCount(-1);
-    Widget::setParent(parentView);
-}
-
-void Scrollbar::setEnabled(bool e)
-{ 
-    if (m_enabled == e)
-        return;
-    m_enabled = e;
-    invalidate();
-}
-
-bool Scrollbar::isWindowActive() const
-{
-    return m_client->isActive();
-}
- 
-void Scrollbar::invalidateRect(const IntRect& rect)
-{
-    if (suppressInvalidation())
-        return;
-    m_client->invalidateScrollbarRect(this, rect);
-}
-
-PlatformMouseEvent Scrollbar::transformEvent(const PlatformMouseEvent& event)
-{
-    return event;
-}
-
-}