1 files changed, 136 insertions, 0 deletions
diff --git a/src/plugins/platforms/winrt/uiautomation/qwinrtuiavalueprovider.cpp b/src/plugins/platforms/winrt/uiautomation/qwinrtuiavalueprovider.cpp
new file mode 100644
index 0000000000..21389b74d2
--- /dev/null
+++ b/src/plugins/platforms/winrt/uiautomation/qwinrtuiavalueprovider.cpp
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/qtguiglobal.h>
+#if QT_CONFIG(accessibility)
+
+#include "qwinrtuiavalueprovider.h"
+#include "qwinrtuiametadatacache.h"
+#include "qwinrtuiautils.h"
+
+#include <QtGui/QAccessible>
+#include <QtGui/QAccessibleInterface>
+#include <QtCore/QLoggingCategory>
+#include <QtCore/QString>
+#include <QtCore/private/qeventdispatcher_winrt_p.h>
+
+QT_BEGIN_NAMESPACE
+
+using namespace QWinRTUiAutomation;
+using namespace ABI::Windows::UI::Xaml::Automation;
+using namespace ABI::Windows::UI::Xaml::Automation::Provider;
+
+QWinRTUiaValueProvider::QWinRTUiaValueProvider(QAccessible::Id id) :
+    QWinRTUiaBaseProvider(id)
+{
+    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
+}
+
+QWinRTUiaValueProvider::~QWinRTUiaValueProvider()
+{
+    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
+}
+
+// True for read-only controls.
+HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::get_IsReadOnly(boolean *value)
+{
+    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
+
+    if (!value)
+        return E_INVALIDARG;
+    QSharedPointer<QWinRTUiaControlMetadata> metadata = QWinRTUiaMetadataCache::instance()->metadataForId(id());
+    *value = (metadata->state().readOnly != 0);
+    return S_OK;
+}
+
+// Returns the value in text form.
+HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::get_Value(HSTRING *value)
+{
+    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
+
+    if (!value)
+        return E_INVALIDARG;
+    QSharedPointer<QWinRTUiaControlMetadata> metadata = QWinRTUiaMetadataCache::instance()->metadataForId(id());
+    return qHString(metadata->value(), value);
+}
+
+// Sets the value associated with the control.
+HRESULT STDMETHODCALLTYPE QWinRTUiaValueProvider::SetValue(HSTRING value)
+{
+    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
+
+    auto accid = id();
+    auto tmpValue = QSharedPointer<QString>(new QString);
+    auto ptrValue = new QSharedPointer<QString>(tmpValue);
+
+    *tmpValue = hStrToQStr(value);
+
+    QEventDispatcherWinRT::runOnMainThread([accid, ptrValue]() {
+
+        if (QAccessibleInterface *accessible = accessibleForId(accid)) {
+
+            // First sets the value as a text.
+            accessible->setText(QAccessible::Value, **ptrValue);
+
+            // Then, if the control supports the value interface (range value)
+            // and the supplied text can be converted to a number, and that number
+            // lies within the min/max limits, sets it as the control's current (numeric) value.
+            if (QAccessibleValueInterface *valueInterface = accessible->valueInterface()) {
+                bool ok = false;
+                double numval = (*ptrValue)->toDouble(&ok);
+                if (ok) {
+                    double minimum = valueInterface->minimumValue().toDouble();
+                    double maximum = valueInterface->maximumValue().toDouble();
+                    if ((numval >= minimum) && (numval <= maximum)) {
+                        valueInterface->setCurrentValue(QVariant(numval));
+                    }
+                }
+            }
+        }
+        QWinRTUiaMetadataCache::instance()->load(accid);
+        delete ptrValue;
+        return S_OK;
+    }, 0);
+
+    return S_OK;
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(accessibility)