blob: 0f91927d4c15ae321b50313898101f014ea48fd2 (
plain)
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
|
// Copyright (C) 2016 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 "qaccessiblebridgeutils_p.h"
#include <QtCore/qmath.h>
QT_BEGIN_NAMESPACE
namespace QAccessibleBridgeUtils {
static bool performAction(QAccessibleInterface *iface, const QString &actionName)
{
if (QAccessibleActionInterface *actionIface = iface->actionInterface()) {
if (actionIface->actionNames().contains(actionName)) {
actionIface->doAction(actionName);
return true;
}
}
return false;
}
QStringList effectiveActionNames(QAccessibleInterface *iface)
{
QStringList actions;
if (QAccessibleActionInterface *actionIface = iface->actionInterface())
actions = actionIface->actionNames();
if (iface->valueInterface()) {
if (!actions.contains(QAccessibleActionInterface::increaseAction()))
actions << QAccessibleActionInterface::increaseAction();
if (!actions.contains(QAccessibleActionInterface::decreaseAction()))
actions << QAccessibleActionInterface::decreaseAction();
}
return actions;
}
bool performEffectiveAction(QAccessibleInterface *iface, const QString &actionName)
{
if (!iface)
return false;
if (performAction(iface, actionName))
return true;
if (actionName != QAccessibleActionInterface::increaseAction()
&& actionName != QAccessibleActionInterface::decreaseAction())
return false;
QAccessibleValueInterface *valueIface = iface->valueInterface();
if (!valueIface)
return false;
bool success;
const QVariant currentVariant = valueIface->currentValue();
double stepSize = valueIface->minimumStepSize().toDouble(&success);
if (!success || qFuzzyIsNull(stepSize)) {
const double min = valueIface->minimumValue().toDouble(&success);
if (!success)
return false;
const double max = valueIface->maximumValue().toDouble(&success);
if (!success)
return false;
stepSize = (max - min) / 10; // this is pretty arbitrary, we just need to provide something
const int typ = currentVariant.userType();
if (typ != QMetaType::Float && typ != QMetaType::Double) {
// currentValue is an integer. Round it up to ensure stepping in case it was below 1
stepSize = qCeil(stepSize);
}
}
const double current = currentVariant.toDouble(&success);
if (!success)
return false;
if (actionName == QAccessibleActionInterface::decreaseAction())
stepSize = -stepSize;
valueIface->setCurrentValue(current + stepSize);
return true;
}
QString accessibleId(QAccessibleInterface *accessible) {
QString result;
if (!accessible)
return result;
result = accessible->text(QAccessible::Identifier);
if (!result.isEmpty())
return result;
while (accessible) {
if (!result.isEmpty())
result.prepend(u'.');
if (auto obj = accessible->object()) {
const QString name = obj->objectName();
if (!name.isEmpty())
result.prepend(name);
else
result.prepend(QString::fromUtf8(obj->metaObject()->className()));
}
accessible = accessible->parent();
}
return result;
}
} //namespace
QT_END_NAMESPACE
|
