third_party/WebKit/Source/core/layout/LayoutIFrame.cpp

   1 /*
   2  * Copyright (C) 2010 Apple 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
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "core/layout/LayoutIFrame.h"
  28
  29 #include "core/HTMLNames.h"
  30 #include "core/frame/FrameView.h"
  31 #include "core/frame/LocalFrame.h"
  32 #include "core/html/HTMLIFrameElement.h"
  33 #include "core/layout/LayoutAnalyzer.h"
  34 #include "core/layout/LayoutView.h"
  35
  36 namespace blink {
  37
  38 using namespace HTMLNames;
  39
  40 LayoutIFrame::LayoutIFrame(Element* element)
  41     : LayoutPart(element)
  42 {
  43 }
  44
  45 bool LayoutIFrame::shouldComputeSizeAsReplaced() const
  46 {
  47     return true;
  48 }
  49
  50 bool LayoutIFrame::isInlineBlockOrInlineTable() const
  51 {
  52     return isInline();
  53 }
  54
  55 DeprecatedPaintLayerType LayoutIFrame::layerTypeRequired() const
  56 {
  57     if (style()->resize() != RESIZE_NONE)
  58         return NormalDeprecatedPaintLayer;
  59     return LayoutPart::layerTypeRequired();
  60 }
  61
  62 void LayoutIFrame::layout()
  63 {
  64     ASSERT(needsLayout());
  65     LayoutAnalyzer::Scope analyzer(*this);
  66
  67     updateLogicalWidth();
  68     // No kids to layout as a replaced element.
  69     updateLogicalHeight();
  70
  71     m_overflow.clear();
  72     addVisualEffectOverflow();
  73     updateLayerTransformAfterLayout();
  74
  75     clearNeedsLayout();
  76 }
  77
  78 }