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39
40 #include <QtGui/qtguiglobal.h>
41 #if QT_CONFIG(accessibility)
42
43 #include "qwinrtuiavalueprovider.h"
44 #include "qwinrtuiametadatacache.h"
45 #include "qwinrtuiautils.h"
46
47 #include <QtGui/QAccessible>
48 #include <QtGui/QAccessibleInterface>
49 #include <QtCore/QLoggingCategory>
50 #include <QtCore/QString>
51 #include <QtCore/private/qeventdispatcher_winrt_p.h>
52
53 QT_BEGIN_NAMESPACE
54
55 using namespace QWinRTUiAutomation;
56 using namespace ABI::Windows::UI::Xaml::Automation;
57 using namespace ABI::Windows::UI::Xaml::Automation::Provider;
58
QWinRTUiaValueProvider(QAccessible::Id id)59 QWinRTUiaValueProvider::QWinRTUiaValueProvider(QAccessible::Id id) :
60 QWinRTUiaBaseProvider(id)
61 {
62 qCDebug(lcQpaUiAutomation) << __FUNCTION__;
63 }
64
~QWinRTUiaValueProvider()65 QWinRTUiaValueProvider::~QWinRTUiaValueProvider()
66 {
67 qCDebug(lcQpaUiAutomation) << __FUNCTION__;
68 }
69
70 // True for read-only controls.
get_IsReadOnly(boolean * value)71 HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::get_IsReadOnly(boolean *value)
72 {
73 qCDebug(lcQpaUiAutomation) << __FUNCTION__;
74
75 if (!value)
76 return E_INVALIDARG;
77 QSharedPointer<QWinRTUiaControlMetadata> metadata = QWinRTUiaMetadataCache::instance()->metadataForId(id());
78 *value = (metadata->state().readOnly != 0);
79 return S_OK;
80 }
81
82 // Returns the value in text form.
get_Value(HSTRING * value)83 HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::get_Value(HSTRING *value)
84 {
85 qCDebug(lcQpaUiAutomation) << __FUNCTION__;
86
87 if (!value)
88 return E_INVALIDARG;
89 QSharedPointer<QWinRTUiaControlMetadata> metadata = QWinRTUiaMetadataCache::instance()->metadataForId(id());
90 return qHString(metadata->value(), value);
91 }
92
93 // Sets the value associated with the control.
SetValue(HSTRING value)94 HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::SetValue(HSTRING value)
95 {
96 qCDebug(lcQpaUiAutomation) << __FUNCTION__;
97
98 auto accid = id();
99
100 QString tmpValue = hStrToQStr(value);
101
102 QEventDispatcherWinRT::runOnMainThread([accid, tmpValue]() {
103
104 if (QAccessibleInterface *accessible = accessibleForId(accid)) {
105
106 // First sets the value as a text.
107 accessible->setText(QAccessible::Value, tmpValue);
108
109 // Then, if the control supports the value interface (range value)
110 // and the supplied text can be converted to a number, and that number
111 // lies within the min/max limits, sets it as the control's current (numeric) value.
112 if (QAccessibleValueInterface *valueInterface = accessible->valueInterface()) {
113 bool ok = false;
114 double numval = tmpValue.toDouble(&ok);
115 if (ok) {
116 double minimum = valueInterface->minimumValue().toDouble();
117 double maximum = valueInterface->maximumValue().toDouble();
118 if ((numval >= minimum) && (numval <= maximum)) {
119 valueInterface->setCurrentValue(QVariant(numval));
120 }
121 }
122 }
123 }
124 QWinRTUiaMetadataCache::instance()->load(accid);
125 return S_OK;
126 }, 0);
127
128 return S_OK;
129 }
130
131 QT_END_NAMESPACE
132
133 #endif // QT_CONFIG(accessibility)
134