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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 "core/platform/chromium/FramelessScrollView.h"
     33 
     34 #include "core/platform/chromium/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 ScrollableArea* FramelessScrollView::enclosingScrollableArea() const
     60 {
     61     // FIXME: Look for an ancestor scrollable area that can be scrolled.
     62     return 0;
     63 }
     64 
     65 bool FramelessScrollView::scrollbarsCanBeActive() const
     66 {
     67     return isActive();
     68 }
     69 
     70 IntRect FramelessScrollView::scrollableAreaBoundingBox() const
     71 {
     72     return windowClipRect(false);
     73 }
     74 
     75 void FramelessScrollView::invalidateRect(const IntRect& rect)
     76 {
     77     if (HostWindow* h = hostWindow())
     78         h->invalidateContentsAndRootView(rect);
     79 }
     80 
     81 HostWindow* FramelessScrollView::hostWindow() const
     82 {
     83     return const_cast<FramelessScrollViewClient*>(m_client);
     84 }
     85 
     86 IntRect FramelessScrollView::windowClipRect(bool clipToContents) const
     87 {
     88     return contentsToWindow(visibleContentRect(clipToContents ? ExcludeScrollbars : IncludeScrollbars));
     89 }
     90 
     91 void FramelessScrollView::paintContents(GraphicsContext*, const IntRect&)
     92 {
     93 }
     94 
     95 void FramelessScrollView::contentsResized()
     96 {
     97 }
     98 
     99 void FramelessScrollView::visibleContentsResized()
    100 {
    101 }
    102 
    103 } // namespace WebCore
    104