code.vuplus.com Git - vuplus_webkit/blob - Source/WebCore/rendering/RenderFullScreen.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 INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include "config.h"
  26
  27 #if ENABLE(FULLSCREEN_API)
  28
  29 #include "RenderFullScreen.h"
  30
  31 #include "RenderLayer.h"
  32
  33 #if USE(ACCELERATED_COMPOSITING)
  34 #include "RenderLayerCompositor.h"
  35 #endif
  36
  37 using namespace WebCore;
  38
  39 class RenderFullScreenPlaceholder : public RenderBlock {
  40 public:
  41     RenderFullScreenPlaceholder(RenderFullScreen* owner)
  42         : RenderBlock(owner->document())
  43         , m_owner(owner)
  44     {
  45     }
  46 private:
  47     virtual bool isRenderFullScreenPlaceholder() const { return true; }
  48     virtual void willBeDestroyed();
  49     RenderFullScreen* m_owner;
  50 };
  51
  52 void RenderFullScreenPlaceholder::willBeDestroyed()
  53 {
  54     m_owner->setPlaceholder(0);
  55     RenderBlock::willBeDestroyed();
  56 }
  57
  58 RenderFullScreen::RenderFullScreen(Node* node)
  59     : RenderDeprecatedFlexibleBox(node)
  60     , m_placeholder(0)
  61 {
  62     setReplaced(false);
  63 }
  64
  65 void RenderFullScreen::willBeDestroyed()
  66 {
  67     if (m_placeholder) {
  68         remove();
  69         if (!m_placeholder->beingDestroyed())
  70             m_placeholder->destroy();
  71         ASSERT(!m_placeholder);
  72     }
  73
  74     // RenderObjects are unretained, so notify the document (which holds a pointer to a RenderFullScreen)
  75     // if it's RenderFullScreen is destroyed.
  76     if (document() && document()->fullScreenRenderer() == this)
  77         document()->fullScreenRendererDestroyed();
  78
  79     RenderDeprecatedFlexibleBox::willBeDestroyed();
  80 }
  81
  82 PassRefPtr<RenderStyle> RenderFullScreen::createFullScreenStyle()
  83 {
  84     RefPtr<RenderStyle> fullscreenStyle = RenderStyle::createDefaultStyle();
  85
  86     // Create a stacking context:
  87     fullscreenStyle->setZIndex(INT_MAX);
  88
  89     fullscreenStyle->setFontDescription(FontDescription());
  90     fullscreenStyle->font().update(0);
  91
  92     fullscreenStyle->setDisplay(BOX);
  93     fullscreenStyle->setBoxPack(BCENTER);
  94     fullscreenStyle->setBoxAlign(BCENTER);
  95     fullscreenStyle->setBoxOrient(VERTICAL);
  96
  97     fullscreenStyle->setPosition(FixedPosition);
  98     fullscreenStyle->setWidth(Length(100.0, Percent));
  99     fullscreenStyle->setHeight(Length(100.0, Percent));
 100     fullscreenStyle->setLeft(Length(0, Fixed));
 101     fullscreenStyle->setTop(Length(0, Fixed));
 102
 103     fullscreenStyle->setBackgroundColor(Color::black);
 104
 105     return fullscreenStyle.release();
 106 }
 107
 108 void RenderFullScreen::setPlaceholder(RenderBlock* placeholder)
 109 {
 110     m_placeholder = placeholder;
 111 }
 112
 113 void RenderFullScreen::createPlaceholder(PassRefPtr<RenderStyle> style, const IntRect& frameRect)
 114 {
 115     if (style->width().isAuto())
 116         style->setWidth(Length(frameRect.width(), Fixed));
 117     if (style->height().isAuto())
 118         style->setHeight(Length(frameRect.height(), Fixed));
 119
 120     if (!m_placeholder) {
 121         m_placeholder = new (document()->renderArena()) RenderFullScreenPlaceholder(this);
 122         m_placeholder->setStyle(style);
 123         if (parent()) {
 124             parent()->addChild(m_placeholder, this);
 125             remove();
 126         }
 127         m_placeholder->addChild(this);
 128     } else
 129         m_placeholder->setStyle(style);
 130 }
 131
 132 #endif