1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef AccessibilityScrollView_h
#define AccessibilityScrollView_h
#include "AccessibilityObject.h"
namespace WebCore {
class AccessibilityScrollbar;
class Scrollbar;
class ScrollView;
class AccessibilityScrollView final : public AccessibilityObject {
public:
static Ref<AccessibilityScrollView> create(ScrollView*);
virtual AccessibilityRole roleValue() const override { return ScrollAreaRole; }
ScrollView* scrollView() const { return m_scrollView; }
virtual ~AccessibilityScrollView();
virtual void detach(AccessibilityDetachmentType, AXObjectCache*) override;
AccessibilityObject* webAreaObject() const;
private:
explicit AccessibilityScrollView(ScrollView*);
virtual ScrollableArea* getScrollableAreaIfScrollable() const override;
virtual void scrollTo(const IntPoint&) const override;
virtual bool computeAccessibilityIsIgnored() const override;
virtual bool isAccessibilityScrollView() const override { return true; }
virtual bool isEnabled() const override { return true; }
virtual bool isAttachment() const override;
virtual Widget* widgetForAttachmentView() const override;
virtual AccessibilityObject* scrollBar(AccessibilityOrientation) override;
virtual void addChildren() override;
virtual void clearChildren() override;
virtual AccessibilityObject* accessibilityHitTest(const IntPoint&) const override;
virtual void updateChildrenIfNecessary() override;
virtual void setNeedsToUpdateChildren() override { m_childrenDirty = true; }
void updateScrollbars();
virtual void setFocused(bool) override;
virtual bool canSetFocusAttribute() const override;
virtual bool isFocused() const override;
virtual FrameView* documentFrameView() const override;
virtual LayoutRect elementRect() const override;
virtual AccessibilityObject* parentObject() const override;
virtual AccessibilityObject* parentObjectIfExists() const override;
virtual AccessibilityObject* firstChild() const override { return webAreaObject(); }
AccessibilityScrollbar* addChildScrollbar(Scrollbar*);
void removeChildScrollbar(AccessibilityObject*);
ScrollView* m_scrollView;
RefPtr<AccessibilityObject> m_horizontalScrollbar;
RefPtr<AccessibilityObject> m_verticalScrollbar;
bool m_childrenDirty;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityScrollView, isAccessibilityScrollView())
#endif // AccessibilityScrollView_h
|
