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      1 /*
      2  * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "platform/scroll/FramelessScrollView.h"
     33 
     34 #include "platform/scroll/FramelessScrollViewClient.h"
     35 
     36 namespace WebCore {
     37 
     38 FramelessScrollView::~FramelessScrollView()
     39 {
     40     // Remove native scrollbars now before we lose the connection to the HostWindow.
     41     setHasHorizontalScrollbar(false);
     42     setHasVerticalScrollbar(false);
     43 }
     44 
     45 void FramelessScrollView::invalidateScrollbarRect(Scrollbar* scrollbar, const IntRect& rect)
     46 {
     47     // Add in our offset within the ScrollView.
     48     IntRect dirtyRect = rect;
     49     dirtyRect.move(scrollbar->x(), scrollbar->y());
     50     invalidateRect(dirtyRect);
     51 }
     52 
     53 bool FramelessScrollView::isActive() const
     54 {
     55     // FIXME
     56     return true;
     57 }
     58 
     59 bool FramelessScrollView::scrollbarsCanBeActive() const
     60 {
     61     return isActive();
     62 }
     63 
     64 IntRect FramelessScrollView::scrollableAreaBoundingBox() const
     65 {
     66     return windowClipRect(IncludeScrollbars);
     67 }
     68 
     69 void FramelessScrollView::invalidateRect(const IntRect& rect)
     70 {
     71     if (HostWindow* h = hostWindow())
     72         h->invalidateContentsAndRootView(rect);
     73 }
     74 
     75 HostWindow* FramelessScrollView::hostWindow() const
     76 {
     77     return const_cast<FramelessScrollViewClient*>(m_client);
     78 }
     79 
     80 IntRect FramelessScrollView::windowClipRect(IncludeScrollbarsInRect scrollbarInclusion) const
     81 {
     82     IntRect clipRect = visibleContentRect(scrollbarInclusion);
     83     if (shouldPlaceVerticalScrollbarOnLeft() && verticalScrollbar() && !verticalScrollbar()->isOverlayScrollbar())
     84         clipRect.move(verticalScrollbar()->width(), 0);
     85     return contentsToWindow(clipRect);
     86 }
     87 
     88 void FramelessScrollView::paintContents(GraphicsContext*, const IntRect&)
     89 {
     90 }
     91 
     92 void FramelessScrollView::contentsResized()
     93 {
     94 }
     95 
     96 void FramelessScrollView::scrollbarExistenceDidChange()
     97 {
     98 }
     99 
    100 } // namespace WebCore
    101