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28 #include "platform/OverscrollTheme.h"
32 OverscrollTheme::OverscrollTheme()
34 #if USE(RUBBER_BANDING)
35 // Load the shadow and pattern for the overhang.
36 m_overhangShadow = Image::loadPlatformResource("overhangShadow");
37 m_overhangPattern = Image::loadPlatformResource("overhangPattern");
41 PassRefPtr<Image> OverscrollTheme::getOverhangImage()
43 return m_overhangPattern;
46 void OverscrollTheme::setUpOverhangShadowLayer(GraphicsLayer* overhangShadowLayer)
48 // The shadow texture is has a 1-pixel aperture in the center, so the division by
49 // two is doing an intentional round-down.
50 overhangShadowLayer->setContentsToNinePatch(
51 m_overhangShadow.get(),
52 IntRect(m_overhangShadow->width() / 2, m_overhangShadow->height() / 2, 1, 1));
55 void OverscrollTheme::updateOverhangShadowLayer(GraphicsLayer* shadowLayer, GraphicsLayer* rootContentLayer)
57 // Note that for the position, the division m_overhangShadow->width() / 2 is an intentional
58 // round-down, and that for the width and height, the 1-pixel aperture is being replaced
59 // by the root contents layer, hence subtracting 1 and adding the rootContentsLayer size.
61 static_cast<int>(rootContentLayer->position().x()) - m_overhangShadow->width() / 2,
62 static_cast<int>(rootContentLayer->position().y()) - m_overhangShadow->height() / 2,
63 static_cast<int>(rootContentLayer->size().width()) + m_overhangShadow->width() - 1,
64 static_cast<int>(rootContentLayer->size().height()) + m_overhangShadow->height() - 1);
65 shadowLayer->setContentsRect(shadowRect);
68 OverscrollTheme* OverscrollTheme::theme()
70 DEFINE_STATIC_LOCAL(OverscrollTheme, theme, ());