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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* Copyright (C) 2008 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 INC. ``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 INC. OR
* 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 AccessibilityUIElement_h
#define AccessibilityUIElement_h
#include "AccessibilityTextMarker.h"
#include <JavaScriptCore/JSObjectRef.h>
#include <wtf/Platform.h>
#include <wtf/Vector.h>
#if PLATFORM(MAC)
#ifdef __OBJC__
typedef id PlatformUIElement;
#else
typedef struct objc_object* PlatformUIElement;
#endif
#elif PLATFORM(WIN)
#undef _WINSOCKAPI_
#define _WINSOCKAPI_ // Prevent inclusion of winsock.h in windows.h
#include <WebCore/COMPtr.h>
#include <oleacc.h>
typedef COMPtr<IAccessible> PlatformUIElement;
#elif PLATFORM(GTK)
#include <atk/atk.h>
typedef AtkObject* PlatformUIElement;
#else
typedef void* PlatformUIElement;
#endif
#if PLATFORM(MAC)
#ifdef __OBJC__
typedef id NotificationHandler;
#else
typedef struct objc_object* NotificationHandler;
#endif
#endif
class AccessibilityUIElement {
public:
AccessibilityUIElement(PlatformUIElement);
AccessibilityUIElement(const AccessibilityUIElement&);
~AccessibilityUIElement();
PlatformUIElement platformUIElement() { return m_element; }
static JSObjectRef makeJSAccessibilityUIElement(JSContextRef, const AccessibilityUIElement&);
bool isEqual(AccessibilityUIElement* otherElement) { return platformUIElement() == otherElement->platformUIElement(); }
void getLinkedUIElements(Vector<AccessibilityUIElement>&);
void getDocumentLinks(Vector<AccessibilityUIElement>&);
void getChildren(Vector<AccessibilityUIElement>&);
void getChildrenWithRange(Vector<AccessibilityUIElement>&, unsigned location, unsigned length);
AccessibilityUIElement elementAtPoint(int x, int y);
AccessibilityUIElement getChildAtIndex(unsigned);
unsigned indexOfChild(AccessibilityUIElement*);
int childrenCount();
AccessibilityUIElement titleUIElement();
AccessibilityUIElement parentElement();
void takeFocus();
void takeSelection();
void addSelection();
void removeSelection();
// Methods - platform-independent implementations
JSStringRef allAttributes();
JSStringRef attributesOfLinkedUIElements();
AccessibilityUIElement linkedUIElementAtIndex(unsigned);
JSStringRef attributesOfDocumentLinks();
JSStringRef attributesOfChildren();
JSStringRef parameterizedAttributeNames();
void increment();
void decrement();
void showMenu();
void press();
// Attributes - platform-independent implementations
JSStringRef stringAttributeValue(JSStringRef attribute);
bool boolAttributeValue(JSStringRef attribute);
bool isAttributeSupported(JSStringRef attribute);
bool isAttributeSettable(JSStringRef attribute);
bool isActionSupported(JSStringRef action);
JSStringRef role();
JSStringRef subrole();
JSStringRef roleDescription();
JSStringRef title();
JSStringRef description();
JSStringRef language();
JSStringRef stringValue();
JSStringRef accessibilityValue() const;
JSStringRef helpText() const;
JSStringRef orientation() const;
double x();
double y();
double width();
double height();
double intValue() const;
double minValue();
double maxValue();
JSStringRef valueDescription();
int insertionPointLineNumber();
JSStringRef selectedTextRange();
bool isEnabled();
bool isRequired() const;
bool isSelected() const;
bool isSelectable() const;
bool isMultiSelectable() const;
bool isExpanded() const;
bool isChecked() const;
bool isVisible() const;
bool isOffScreen() const;
bool isCollapsed() const;
bool hasPopup() const;
int hierarchicalLevel() const;
double clickPointX();
double clickPointY();
JSStringRef documentEncoding();
JSStringRef documentURI();
JSStringRef url();
// Table-specific attributes
JSStringRef attributesOfColumnHeaders();
JSStringRef attributesOfRowHeaders();
JSStringRef attributesOfColumns();
JSStringRef attributesOfRows();
JSStringRef attributesOfVisibleCells();
JSStringRef attributesOfHeader();
int indexInTable();
JSStringRef rowIndexRange();
JSStringRef columnIndexRange();
int rowCount();
int columnCount();
// Tree/Outline specific attributes
AccessibilityUIElement selectedRowAtIndex(unsigned);
AccessibilityUIElement disclosedByRow();
AccessibilityUIElement disclosedRowAtIndex(unsigned);
// ARIA specific
AccessibilityUIElement ariaOwnsElementAtIndex(unsigned);
AccessibilityUIElement ariaFlowToElementAtIndex(unsigned);
// ARIA Drag and Drop
bool ariaIsGrabbed() const;
// A space concatentated string of all the drop effects.
JSStringRef ariaDropEffects() const;
// Parameterized attributes
int lineForIndex(int);
JSStringRef boundsForRange(unsigned location, unsigned length);
void setSelectedTextRange(unsigned location, unsigned length);
JSStringRef stringForRange(unsigned location, unsigned length);
JSStringRef attributedStringForRange(unsigned location, unsigned length);
bool attributedStringRangeIsMisspelled(unsigned location, unsigned length);
// Table-specific
AccessibilityUIElement cellForColumnAndRow(unsigned column, unsigned row);
// Text markers.
AccessibilityTextMarkerRange textMarkerRangeForElement(AccessibilityUIElement*);
AccessibilityTextMarkerRange textMarkerRangeForMarkers(AccessibilityTextMarker* startMarker, AccessibilityTextMarker* endMarker);
AccessibilityTextMarker startTextMarkerForTextMarkerRange(AccessibilityTextMarkerRange*);
AccessibilityTextMarker endTextMarkerForTextMarkerRange(AccessibilityTextMarkerRange*);
AccessibilityUIElement accessibilityElementForTextMarker(AccessibilityTextMarker*);
int textMarkerRangeLength(AccessibilityTextMarkerRange*);
// Notifications
// Function callback should take one argument, the name of the notification.
bool addNotificationListener(JSObjectRef functionCallback);
// Make sure you call remove, because you can't rely on objects being deallocated in a timely fashion.
void removeNotificationListener();
private:
static JSClassRef getJSClass();
PlatformUIElement m_element;
// A retained, platform specific object used to help manage notifications for this object.
#if PLATFORM(MAC)
NotificationHandler m_notificationHandler;
#endif
};
#endif // AccessibilityUIElement_h
|
