ui/views/controls/scrollbar/native_scroll_bar.cc - Issue 2480763005: Remove NativeScrollBar*.

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Issue 2480763005: Remove NativeScrollBar*. (Closed)

Patch Set: visibility Created 4 years, 1 month ago

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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

3 // found in the LICENSE file.

4

5 #include "ui/views/controls/scrollbar/native_scroll_bar.h"

6

7 #include <algorithm>

8 #include <string>

9

10 #include "base/message_loop/message_loop.h"

11 #include "ui/events/event.h"

12 #include "ui/views/controls/scrollbar/native_scroll_bar_views.h"

13 #include "ui/views/controls/scrollbar/native_scroll_bar_wrapper.h"

14 #include "ui/views/widget/widget.h"

15

16 namespace views {

17

18 // static

19 const char NativeScrollBar::kViewClassName[] = "NativeScrollBar";

20

21 ////////////////////////////////////////////////////////////////////////////////

22 // NativeScrollBar, public:

23 NativeScrollBar::NativeScrollBar(bool is_horizontal)

24 : ScrollBar(is_horizontal),

25 native_wrapper_(NULL) {

26 }

27

28 NativeScrollBar::~NativeScrollBar() {

29 }

30

31 // static

32 int NativeScrollBar::GetHorizontalScrollBarHeight(

33 const ui::NativeTheme* theme) {

34 return NativeScrollBarWrapper::GetHorizontalScrollBarHeight(theme);

35 }

36

37 // static

38 int NativeScrollBar::GetVerticalScrollBarWidth(

39 const ui::NativeTheme* theme) {

40 return NativeScrollBarWrapper::GetVerticalScrollBarWidth(theme);

41 }

42

43 ////////////////////////////////////////////////////////////////////////////////

44 // NativeScrollBar, View overrides:

45 gfx::Size NativeScrollBar::GetPreferredSize() const {

46 if (native_wrapper_)

47 return native_wrapper_->GetView()->GetPreferredSize();

48 return gfx::Size();

49 }

50

51 void NativeScrollBar::Layout() {

52 if (native_wrapper_) {

53 native_wrapper_->GetView()->SetBounds(0, 0, width(), height());

54 native_wrapper_->GetView()->Layout();

55 }

56 }

57

58 void NativeScrollBar::ViewHierarchyChanged(

59 const ViewHierarchyChangedDetails& details) {

60 if (details.is_add && !native_wrapper_ && GetWidget()) {

61 native_wrapper_ = NativeScrollBarWrapper::CreateWrapper(this);

62 AddChildView(native_wrapper_->GetView());

63 }

64 }

65

66 const char* NativeScrollBar::GetClassName() const {

67 return kViewClassName;

68 }

69

70 // Overridden from View for keyboard UI.

71 bool NativeScrollBar::OnKeyPressed(const ui::KeyEvent& event) {

72 if (!native_wrapper_)

73 return false;

74 return native_wrapper_->GetView()->OnKeyPressed(event);

75 }

76

77 void NativeScrollBar::OnGestureEvent(ui::GestureEvent* event) {

78 if (!native_wrapper_)

79 return;

80 native_wrapper_->GetView()->OnGestureEvent(event);

81 }

82

83 bool NativeScrollBar::OnMouseWheel(const ui::MouseWheelEvent& event) {

84 if (!native_wrapper_)

85 return false;

86 return native_wrapper_->GetView()->OnMouseWheel(event);

87 }

88

89 ////////////////////////////////////////////////////////////////////////////////

90 // NativeScrollBar, ScrollBar overrides:

91 void NativeScrollBar::Update(int viewport_size,

92 int content_size,

93 int current_pos) {

94 ScrollBar::Update(viewport_size, content_size, current_pos);

95

96 if (native_wrapper_)

97 native_wrapper_->Update(viewport_size, content_size, current_pos);

98 }

99

100 int NativeScrollBar::GetLayoutSize() const {

101 return IsHorizontal() ?

102 GetHorizontalScrollBarHeight(GetNativeTheme()) :

103 GetVerticalScrollBarWidth(GetNativeTheme());

104 }

105

106 int NativeScrollBar::GetPosition() const {

107 if (!native_wrapper_)

108 return 0;

109 return native_wrapper_->GetPosition();

110 }

111

112 } // namespace views

113

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