Changeset 63697 in vbox

Timestamp:

Sep 2, 2016 1:02:50 PM (8 years ago)

Author:

vboxsync

Message:

FE/Qt: bugref:6899: Accessibility support (step 3): Selector UI: Basic Chooser-view accessibility interface.

File:

• trunk/src/VBox/Frontends/VirtualBox/src/selector/graphics/chooser/UIGChooserView.cpp (modified) (2 diffs)

trunk/src/VBox/Frontends/VirtualBox/src/selector/graphics/chooser/UIGChooserView.cpp

@@ -22 +22 @@
 /* Qt includes: */
 # include <QScrollBar>
+# include <QAccessibleWidget>
 
 /* GUI includes: */
 # include "UIGChooser.h"
+# include "UIGChooserModel.h"
 # include "UIGChooserView.h"
 # include "UIGChooserItem.h"
 
+/* Other VBox includes: */
+# include <iprt/assert.h>
+
 #endif /* !VBOX_WITH_PRECOMPILED_HEADERS */
+
+
+/** QAccessibleWidget extension used as an accessibility interface for Chooser-view. */
+class UIAccessibilityInterfaceForUIGChooserView : public QAccessibleWidget
+{
+public:
+
+    /** Returns an accessibility interface for passed @a strClassname and @a pObject. */
+    static QAccessibleInterface* pFactory(const QString &strClassname, QObject *pObject)
+    {
+        /* Creating Chooser-view accessibility interface: */
+        if (pObject && strClassname == QLatin1String("UIGChooserView"))
+            return new UIAccessibilityInterfaceForUIGChooserView(qobject_cast<QWidget*>(pObject));
+
+        /* Null by default: */
+        return 0;
+    }
+
+    /** Constructs an accessibility interface passing @a pWidget to the base-class. */
+    UIAccessibilityInterfaceForUIGChooserView(QWidget *pWidget)
+        : QAccessibleWidget(pWidget, QAccessible::List)
+    {}
+
+    /** Returns the number of children. */
+    virtual int childCount() const /* override */
+    {
+        /* Make sure view still alive: */
+        AssertPtrReturn(view(), 0);
+
+        /* Return the number of children: */
+        return view()->chooser()->model()->root()->items().size();
+    }
+
+    /** Returns the child with the passed @a iIndex. */
+    virtual QAccessibleInterface *child(int iIndex) const /* override */
+    {
+        /* Make sure view still alive: */
+        AssertPtrReturn(view(), 0);
+
+        /* Make sure index is valid: */
+        if (iIndex < childCount())
+            return QAccessible::queryAccessibleInterface(view()->chooser()->model()->root()->items().at(iIndex));
+
+        /* Null by default: */
+        return 0;
+    }
+
+    /** Returns a text for the passed @a enmTextRole. */
+    virtual QString text(QAccessible::Text enmTextRole) const /* override */
+    {
+        /* Make sure view still alive: */
+        AssertPtrReturn(view(), QString());
+
+        /* Return view tool-tip: */
+        Q_UNUSED(enmTextRole);
+        return view()->toolTip();
+    }
+
+private:
+
+    /** Returns corresponding Chooser-view. */
+    UIGChooserView* view() const { return qobject_cast<UIGChooserView*>(widget()); }
+};
 
 
@@ -37 +105 @@
     , m_iMinimumHeightHint(0)
 {
+    /* Install Chooser-view accessibility interface factory: */
+    QAccessible::installFactory(UIAccessibilityInterfaceForUIGChooserView::pFactory);
+
     /* Setup frame: */
     setFrameShape(QFrame::NoFrame);