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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/gfx/canvas.h" | 9 #include "ui/gfx/canvas.h" |
| 10 #include "ui/native_theme/native_theme.h" | 10 #include "ui/native_theme/native_theme.h" |
| 11 #include "ui/views/border.h" | 11 #include "ui/views/border.h" |
| 12 #include "ui/views/controls/scrollbar/native_scroll_bar.h" | 12 #include "ui/views/controls/scrollbar/native_scroll_bar.h" |
| 13 #include "ui/views/widget/root_view.h" | 13 #include "ui/views/widget/root_view.h" |
| 14 | 14 |
| 15 namespace views { | 15 namespace views { |
| 16 | 16 |
| 17 const char ScrollView::kViewClassName[] = "ScrollView"; | 17 const char ScrollView::kViewClassName[] = "ScrollView"; |
| 18 | 18 |
| 19 namespace { | 19 namespace { |
| 20 | 20 |
| 21 // Subclass of ScrollView that resets the border when the theme changes. | 21 // Subclass of ScrollView that resets the border when the theme changes. |
| 22 class ScrollViewWithBorder : public views::ScrollView { | 22 class ScrollViewWithBorder : public views::ScrollView { |
| 23 public: | 23 public: |
| 24 ScrollViewWithBorder() {} | 24 ScrollViewWithBorder() {} |
| 25 | 25 |
| 26 // View overrides; | 26 // View overrides; |
| 27 virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE { | 27 virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) override { |
| 28 SetBorder(Border::CreateSolidBorder( | 28 SetBorder(Border::CreateSolidBorder( |
| 29 1, | 29 1, |
| 30 theme->GetSystemColor(ui::NativeTheme::kColorId_UnfocusedBorderColor))); | 30 theme->GetSystemColor(ui::NativeTheme::kColorId_UnfocusedBorderColor))); |
| 31 } | 31 } |
| 32 | 32 |
| 33 private: | 33 private: |
| 34 DISALLOW_COPY_AND_ASSIGN(ScrollViewWithBorder); | 34 DISALLOW_COPY_AND_ASSIGN(ScrollViewWithBorder); |
| 35 }; | 35 }; |
| 36 | 36 |
| 37 class ScrollCornerView : public views::View { | 37 class ScrollCornerView : public views::View { |
| 38 public: | 38 public: |
| 39 ScrollCornerView() {} | 39 ScrollCornerView() {} |
| 40 | 40 |
| 41 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { | 41 virtual void OnPaint(gfx::Canvas* canvas) override { |
| 42 ui::NativeTheme::ExtraParams ignored; | 42 ui::NativeTheme::ExtraParams ignored; |
| 43 GetNativeTheme()->Paint(canvas->sk_canvas(), | 43 GetNativeTheme()->Paint(canvas->sk_canvas(), |
| 44 ui::NativeTheme::kScrollbarCorner, | 44 ui::NativeTheme::kScrollbarCorner, |
| 45 ui::NativeTheme::kNormal, | 45 ui::NativeTheme::kNormal, |
| 46 GetLocalBounds(), | 46 GetLocalBounds(), |
| 47 ignored); | 47 ignored); |
| 48 } | 48 } |
| 49 | 49 |
| 50 private: | 50 private: |
| 51 DISALLOW_COPY_AND_ASSIGN(ScrollCornerView); | 51 DISALLOW_COPY_AND_ASSIGN(ScrollCornerView); |
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| 89 } | 89 } |
| 90 | 90 |
| 91 } // namespace | 91 } // namespace |
| 92 | 92 |
| 93 // Viewport contains the contents View of the ScrollView. | 93 // Viewport contains the contents View of the ScrollView. |
| 94 class ScrollView::Viewport : public View { | 94 class ScrollView::Viewport : public View { |
| 95 public: | 95 public: |
| 96 Viewport() {} | 96 Viewport() {} |
| 97 virtual ~Viewport() {} | 97 virtual ~Viewport() {} |
| 98 | 98 |
| 99 virtual const char* GetClassName() const OVERRIDE { | 99 virtual const char* GetClassName() const override { |
| 100 return "ScrollView::Viewport"; | 100 return "ScrollView::Viewport"; |
| 101 } | 101 } |
| 102 | 102 |
| 103 virtual void ScrollRectToVisible(const gfx::Rect& rect) OVERRIDE { | 103 virtual void ScrollRectToVisible(const gfx::Rect& rect) override { |
| 104 if (!has_children() || !parent()) | 104 if (!has_children() || !parent()) |
| 105 return; | 105 return; |
| 106 | 106 |
| 107 View* contents = child_at(0); | 107 View* contents = child_at(0); |
| 108 gfx::Rect scroll_rect(rect); | 108 gfx::Rect scroll_rect(rect); |
| 109 scroll_rect.Offset(-contents->x(), -contents->y()); | 109 scroll_rect.Offset(-contents->x(), -contents->y()); |
| 110 static_cast<ScrollView*>(parent())->ScrollContentsRegionToBeVisible( | 110 static_cast<ScrollView*>(parent())->ScrollContentsRegionToBeVisible( |
| 111 scroll_rect); | 111 scroll_rect); |
| 112 } | 112 } |
| 113 | 113 |
| 114 virtual void ChildPreferredSizeChanged(View* child) OVERRIDE { | 114 virtual void ChildPreferredSizeChanged(View* child) override { |
| 115 if (parent()) | 115 if (parent()) |
| 116 parent()->Layout(); | 116 parent()->Layout(); |
| 117 } | 117 } |
| 118 | 118 |
| 119 private: | 119 private: |
| 120 DISALLOW_COPY_AND_ASSIGN(Viewport); | 120 DISALLOW_COPY_AND_ASSIGN(Viewport); |
| 121 }; | 121 }; |
| 122 | 122 |
| 123 ScrollView::ScrollView() | 123 ScrollView::ScrollView() |
| 124 : contents_(NULL), | 124 : contents_(NULL), |
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| 635 | 635 |
| 636 VariableRowHeightScrollHelper::RowInfo | 636 VariableRowHeightScrollHelper::RowInfo |
| 637 FixedRowHeightScrollHelper::GetRowInfo(int y) { | 637 FixedRowHeightScrollHelper::GetRowInfo(int y) { |
| 638 if (y < top_margin_) | 638 if (y < top_margin_) |
| 639 return RowInfo(0, top_margin_); | 639 return RowInfo(0, top_margin_); |
| 640 return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_, | 640 return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_, |
| 641 row_height_); | 641 row_height_); |
| 642 } | 642 } |
| 643 | 643 |
| 644 } // namespace views | 644 } // namespace views |
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