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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/layers/scrollbar_layer_impl_base.h" | 5 #include "cc/layers/scrollbar_layer_impl_base.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include "cc/trees/layer_tree_impl.h" | 8 #include "cc/trees/layer_tree_impl.h" |
9 #include "ui/gfx/rect_conversions.h" | 9 #include "ui/gfx/rect_conversions.h" |
10 | 10 |
11 namespace cc { | 11 namespace cc { |
12 | 12 |
13 ScrollbarLayerImplBase::ScrollbarLayerImplBase( | 13 ScrollbarLayerImplBase::ScrollbarLayerImplBase( |
14 LayerTreeImpl* tree_impl, | 14 LayerTreeImpl* tree_impl, |
15 int id, | 15 int id, |
16 ScrollbarOrientation orientation, | 16 ScrollbarOrientation orientation, |
17 bool is_left_side_vertical_scrollbar, | 17 bool is_left_side_vertical_scrollbar, |
18 bool is_overlay) | 18 bool is_overlay) |
19 : LayerImpl(tree_impl, id), | 19 : LayerImpl(tree_impl, id), |
20 scroll_layer_(NULL), | 20 scroll_layer_(nullptr), |
21 clip_layer_(NULL), | 21 clip_layer_(nullptr), |
22 is_overlay_scrollbar_(is_overlay), | 22 is_overlay_scrollbar_(is_overlay), |
23 thumb_thickness_scale_factor_(1.f), | 23 thumb_thickness_scale_factor_(1.f), |
24 current_pos_(0.f), | 24 current_pos_(0.f), |
25 maximum_(0), | 25 maximum_(0), |
26 orientation_(orientation), | 26 orientation_(orientation), |
27 is_left_side_vertical_scrollbar_(is_left_side_vertical_scrollbar), | 27 is_left_side_vertical_scrollbar_(is_left_side_vertical_scrollbar), |
28 vertical_adjust_(0.f), | 28 vertical_adjust_(0.f), |
29 visible_to_total_length_ratio_(1.f) {} | 29 visible_to_total_length_ratio_(1.f) {} |
30 | 30 |
31 ScrollbarLayerImplBase::~ScrollbarLayerImplBase() {} | 31 ScrollbarLayerImplBase::~ScrollbarLayerImplBase() {} |
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248 } | 248 } |
249 | 249 |
250 void ScrollbarLayerImplBase::ScrollbarParametersDidChange(bool on_resize) { | 250 void ScrollbarLayerImplBase::ScrollbarParametersDidChange(bool on_resize) { |
251 if (!clip_layer_ || !scroll_layer_) | 251 if (!clip_layer_ || !scroll_layer_) |
252 return; | 252 return; |
253 | 253 |
254 scroll_layer_->SetScrollbarPosition(this, clip_layer_, on_resize); | 254 scroll_layer_->SetScrollbarPosition(this, clip_layer_, on_resize); |
255 } | 255 } |
256 | 256 |
257 } // namespace cc | 257 } // namespace cc |
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