webkit/renderer/compositor_bindings/web_scrollbar_layer_impl.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "webkit/renderer/compositor_bindings/web_scrollbar_layer_impl.h"
   6
   7 #include "cc/layers/painted_scrollbar_layer.h"
   8 #include "cc/layers/scrollbar_layer_interface.h"
   9 #include "cc/layers/solid_color_scrollbar_layer.h"
  10 #include "webkit/renderer/compositor_bindings/scrollbar_impl.h"
  11 #include "webkit/renderer/compositor_bindings/web_layer_impl.h"
  12
  13 using cc::PaintedScrollbarLayer;
  14 using cc::SolidColorScrollbarLayer;
  15
  16 namespace {
  17
  18 cc::ScrollbarOrientation ConvertOrientation(
  19     blink::WebScrollbar::Orientation orientation) {
  20   return orientation == blink::WebScrollbar::Horizontal ? cc::HORIZONTAL
  21     : cc::VERTICAL;
  22 }
  23
  24 }  // namespace
  25
  26 namespace webkit {
  27
  28 WebScrollbarLayerImpl::WebScrollbarLayerImpl(
  29     blink::WebScrollbar* scrollbar,
  30     blink::WebScrollbarThemePainter painter,
  31     blink::WebScrollbarThemeGeometry* geometry)
  32     : layer_(new WebLayerImpl(PaintedScrollbarLayer::Create(
  33           scoped_ptr<cc::Scrollbar>(new ScrollbarImpl(
  34               make_scoped_ptr(scrollbar),
  35               painter,
  36               make_scoped_ptr(geometry))).Pass(), 0))) {}
  37
  38 WebScrollbarLayerImpl::WebScrollbarLayerImpl(
  39     blink::WebScrollbar::Orientation orientation,
  40     int thumb_thickness,
  41     bool is_left_side_vertical_scrollbar)
  42     : layer_(new WebLayerImpl(
  43           SolidColorScrollbarLayer::Create(
  44               ConvertOrientation(orientation),
  45               thumb_thickness,
  46               is_left_side_vertical_scrollbar,
  47               0))) {}
  48
  49 WebScrollbarLayerImpl::~WebScrollbarLayerImpl() {}
  50
  51 blink::WebLayer* WebScrollbarLayerImpl::layer() { return layer_.get(); }
  52
  53 void WebScrollbarLayerImpl::setScrollLayer(blink::WebLayer* layer) {
  54   int id = layer ? static_cast<WebLayerImpl*>(layer)->layer()->id() : 0;
  55   static_cast<PaintedScrollbarLayer*>(layer_->layer())->SetScrollLayerId(id);
  56 }
  57
  58 }  // namespace webkit