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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "ui/views/controls/scroll_view.h" | 5 #include "ui/views/controls/scroll_view.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "ui/events/event.h" | 8 #include "ui/events/event.h" |
| 9 #include "ui/native_theme/native_theme.h" | 9 #include "ui/native_theme/native_theme.h" |
| 10 #include "ui/views/border.h" | 10 #include "ui/views/border.h" |
| 11 #include "ui/views/controls/scrollbar/native_scroll_bar.h" | 11 #include "ui/views/controls/scrollbar/native_scroll_bar.h" |
| 12 #include "ui/views/widget/root_view.h" | 12 #include "ui/views/widget/root_view.h" |
| 13 | 13 |
| 14 namespace views { | 14 namespace views { |
| 15 | 15 |
| 16 const char ScrollView::kViewClassName[] = "ScrollView"; | 16 const char ScrollView::kViewClassName[] = "ScrollView"; |
| 17 | 17 |
| 18 namespace { | 18 namespace { |
| 19 | 19 |
| 20 // Subclass of ScrollView that resets the border when the theme changes. | 20 // Subclass of ScrollView that resets the border when the theme changes. |
| 21 class ScrollViewWithBorder : public views::ScrollView { | 21 class ScrollViewWithBorder : public views::ScrollView { |
| 22 public: | 22 public: |
| 23 ScrollViewWithBorder() {} | 23 ScrollViewWithBorder() { |
| 24 SetThemeSpecificState(); |
| 25 } |
| 24 | 26 |
| 25 // View overrides; | 27 // View overrides; |
| 26 virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE { | 28 virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE { |
| 27 SetBorder(Border::CreateSolidBorder( | 29 SetThemeSpecificState(); |
| 28 1, | |
| 29 theme->GetSystemColor(ui::NativeTheme::kColorId_UnfocusedBorderColor))); | |
| 30 } | 30 } |
| 31 | 31 |
| 32 private: | 32 private: |
| 33 void SetThemeSpecificState() { |
| 34 SetBorder(Border::CreateSolidBorder( |
| 35 1, |
| 36 GetNativeTheme()->GetSystemColor( |
| 37 ui::NativeTheme::kColorId_UnfocusedBorderColor))); |
| 38 } |
| 39 |
| 33 DISALLOW_COPY_AND_ASSIGN(ScrollViewWithBorder); | 40 DISALLOW_COPY_AND_ASSIGN(ScrollViewWithBorder); |
| 34 }; | 41 }; |
| 35 | 42 |
| 36 // Returns the position for the view so that it isn't scrolled off the visible | 43 // Returns the position for the view so that it isn't scrolled off the visible |
| 37 // region. | 44 // region. |
| 38 int CheckScrollBounds(int viewport_size, int content_size, int current_pos) { | 45 int CheckScrollBounds(int viewport_size, int content_size, int current_pos) { |
| 39 int max = std::max(content_size - viewport_size, 0); | 46 int max = std::max(content_size - viewport_size, 0); |
| 40 if (current_pos < 0) | 47 if (current_pos < 0) |
| 41 return 0; | 48 return 0; |
| 42 if (current_pos > max) | 49 if (current_pos > max) |
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| 621 | 628 |
| 622 VariableRowHeightScrollHelper::RowInfo | 629 VariableRowHeightScrollHelper::RowInfo |
| 623 FixedRowHeightScrollHelper::GetRowInfo(int y) { | 630 FixedRowHeightScrollHelper::GetRowInfo(int y) { |
| 624 if (y < top_margin_) | 631 if (y < top_margin_) |
| 625 return RowInfo(0, top_margin_); | 632 return RowInfo(0, top_margin_); |
| 626 return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_, | 633 return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_, |
| 627 row_height_); | 634 row_height_); |
| 628 } | 635 } |
| 629 | 636 |
| 630 } // namespace views | 637 } // namespace views |
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