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
|
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <QtGui/qtguiglobal.h>
#if QT_CONFIG(accessibility)
#include "qwindowsuiautils.h"
#include "qwindowscontext.h"
#include "qwindowswindow.h"
#include <QtGui/qwindow.h>
#include <QtGui/private/qhighdpiscaling_p.h>
#include <cmath>
QT_BEGIN_NAMESPACE
namespace QWindowsUiAutomation {
// Returns the window containing the element (usually the top window),
QWindow *windowForAccessible(const QAccessibleInterface *accessible)
{
QWindow *window = accessible->window();
if (!window) {
const QAccessibleInterface *acc = accessible;
const QAccessibleInterface *par = accessible->parent();
while (par && par->isValid() && !window) {
window = par->window();
acc = par;
par = par->parent();
}
if (!window) {
// Workaround for WebEngineView not knowing its parent.
const auto appWindows = QGuiApplication::topLevelWindows();
for (QWindow *w : appWindows) {
if (QAccessibleInterface *root = w->accessibleRoot()) {
int count = root->childCount();
for (int i = 0; i < count; ++i) {
if (root->child(i) == acc)
return w;
}
}
}
}
}
return window;
}
// Returns the native window handle associated with the element, if any.
// Usually it will be NULL, as Qt5 by default uses alien widgets with no native windows.
HWND hwndForAccessible(const QAccessibleInterface *accessible)
{
if (QWindow *window = accessible->window()) {
if (!accessible->parent() || (accessible->parent()->window() != window)) {
return QWindowsBaseWindow::handleOf(window);
}
}
return nullptr;
}
void clearVariant(VARIANT *variant)
{
variant->vt = VT_EMPTY;
variant->punkVal = nullptr;
}
void setVariantI4(int value, VARIANT *variant)
{
variant->vt = VT_I4;
variant->lVal = value;
}
void setVariantBool(bool value, VARIANT *variant)
{
variant->vt = VT_BOOL;
variant->boolVal = value ? -1 : 0;
}
void setVariantDouble(double value, VARIANT *variant)
{
variant->vt = VT_R8;
variant->dblVal = value;
}
BSTR bStrFromQString(const QString &value)
{
return SysAllocString(reinterpret_cast<const wchar_t *>(value.utf16()));
}
void setVariantString(const QString &value, VARIANT *variant)
{
variant->vt = VT_BSTR;
variant->bstrVal = bStrFromQString(value);
}
// Scales a rect to native coordinates, according to high dpi settings.
void rectToNativeUiaRect(const QRect &rect, const QWindow *w, UiaRect *uiaRect)
{
if (w && uiaRect) {
QRectF r = QHighDpi::toNativePixels(QRectF(rect), w);
uiaRect->left =r.x();
uiaRect->top = r.y();
uiaRect->width = r.width();
uiaRect->height = r.height();
}
}
// Scales a point from native coordinates, according to high dpi settings.
void nativeUiaPointToPoint(const UiaPoint &uiaPoint, const QWindow *w, QPoint *point)
{
if (w && point)
*point = QHighDpi::fromNativePixels(QPoint(uiaPoint.x, uiaPoint.y), w);
}
// Maps an accessibility role ID to an UI Automation control type ID.
long roleToControlTypeId(QAccessible::Role role)
{
static const QHash<QAccessible::Role, long> mapping {
{QAccessible::TitleBar, UIA_TitleBarControlTypeId},
{QAccessible::MenuBar, UIA_MenuBarControlTypeId},
{QAccessible::ScrollBar, UIA_ScrollBarControlTypeId},
{QAccessible::Grip, UIA_ThumbControlTypeId},
{QAccessible::Sound, UIA_CustomControlTypeId},
{QAccessible::Cursor, UIA_CustomControlTypeId},
{QAccessible::Caret, UIA_CustomControlTypeId},
{QAccessible::AlertMessage, UIA_WindowControlTypeId},
{QAccessible::Window, UIA_WindowControlTypeId},
{QAccessible::Client, UIA_GroupControlTypeId},
{QAccessible::PopupMenu, UIA_MenuControlTypeId},
{QAccessible::MenuItem, UIA_MenuItemControlTypeId},
{QAccessible::ToolTip, UIA_ToolTipControlTypeId},
{QAccessible::Application, UIA_CustomControlTypeId},
{QAccessible::Document, UIA_DocumentControlTypeId},
{QAccessible::Pane, UIA_PaneControlTypeId},
{QAccessible::Chart, UIA_CustomControlTypeId},
{QAccessible::Dialog, UIA_WindowControlTypeId},
{QAccessible::Border, UIA_CustomControlTypeId},
{QAccessible::Grouping, UIA_GroupControlTypeId},
{QAccessible::Separator, UIA_SeparatorControlTypeId},
{QAccessible::ToolBar, UIA_ToolBarControlTypeId},
{QAccessible::StatusBar, UIA_StatusBarControlTypeId},
{QAccessible::Table, UIA_TableControlTypeId},
{QAccessible::ColumnHeader, UIA_HeaderControlTypeId},
{QAccessible::RowHeader, UIA_HeaderControlTypeId},
{QAccessible::Column, UIA_HeaderItemControlTypeId},
{QAccessible::Row, UIA_HeaderItemControlTypeId},
{QAccessible::Cell, UIA_DataItemControlTypeId},
{QAccessible::Link, UIA_HyperlinkControlTypeId},
{QAccessible::HelpBalloon, UIA_ToolTipControlTypeId},
{QAccessible::Assistant, UIA_CustomControlTypeId},
{QAccessible::List, UIA_ListControlTypeId},
{QAccessible::ListItem, UIA_ListItemControlTypeId},
{QAccessible::Tree, UIA_TreeControlTypeId},
{QAccessible::TreeItem, UIA_TreeItemControlTypeId},
{QAccessible::PageTab, UIA_TabItemControlTypeId},
{QAccessible::PropertyPage, UIA_CustomControlTypeId},
{QAccessible::Indicator, UIA_CustomControlTypeId},
{QAccessible::Graphic, UIA_ImageControlTypeId},
{QAccessible::StaticText, UIA_TextControlTypeId},
{QAccessible::EditableText, UIA_EditControlTypeId},
{QAccessible::Button, UIA_ButtonControlTypeId},
{QAccessible::CheckBox, UIA_CheckBoxControlTypeId},
{QAccessible::RadioButton, UIA_RadioButtonControlTypeId},
{QAccessible::ComboBox, UIA_ComboBoxControlTypeId},
{QAccessible::ProgressBar, UIA_ProgressBarControlTypeId},
{QAccessible::Dial, UIA_CustomControlTypeId},
{QAccessible::HotkeyField, UIA_CustomControlTypeId},
{QAccessible::Slider, UIA_SliderControlTypeId},
{QAccessible::SpinBox, UIA_SpinnerControlTypeId},
{QAccessible::Canvas, UIA_CustomControlTypeId},
{QAccessible::Animation, UIA_CustomControlTypeId},
{QAccessible::Equation, UIA_CustomControlTypeId},
{QAccessible::ButtonDropDown, UIA_ButtonControlTypeId},
{QAccessible::ButtonMenu, UIA_ButtonControlTypeId},
{QAccessible::ButtonDropGrid, UIA_ButtonControlTypeId},
{QAccessible::Whitespace, UIA_CustomControlTypeId},
{QAccessible::PageTabList, UIA_TabControlTypeId},
{QAccessible::Clock, UIA_CustomControlTypeId},
{QAccessible::Splitter, UIA_CustomControlTypeId},
};
return mapping.value(role, UIA_CustomControlTypeId);
}
// True if a character can be a separator for a text unit.
bool isTextUnitSeparator(TextUnit unit, const QChar &ch)
{
return (((unit == TextUnit_Word) || (unit == TextUnit_Format)) && ch.isSpace())
|| ((unit == TextUnit_Line) && (ch.toLatin1() == '\n'));
}
} // namespace QWindowsUiAutomation
QT_END_NAMESPACE
#endif // QT_CONFIG(accessibility)
|
