Add QAccessibleHyperlinkInterface

This is needed in order to support hyperlinks in text content.

Task-number: QTBUG-67878
Change-Id: I1e990a5db8f0cf78e5cdcec7359e5aabffe42e3d
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

src/gui/accessible/qaccessible.cpp

@@ -448,6 +448,7 @@ Q_LOGGING_CATEGORY(lcAccessibilityCore, "qt.accessibility.core");
     \omitvalue ImageInterface       \omit For objects that represent an image. This interface is generally less important. \endomit
     \value TableInterface           For lists, tables and trees.
     \value TableCellInterface       For cells in a TableInterface object.
+    \value HyperlinkInterface       For hyperlink nodes (usually embedded as children of text nodes)
 
     \sa QAccessibleInterface::interface_cast(), QAccessibleTextInterface, QAccessibleValueInterface, QAccessibleActionInterface, QAccessibleTableInterface, QAccessibleTableCellInterface
 */
@@ -2958,6 +2959,44 @@ QString qAccessibleLocalizedActionDescription(const QString &actionName)
     return accessibleActionStrings()->localizedDescription(actionName);
 }
 
+/*!
+    \internal
+    \fn QString QAccessibleHyperlinkInterface::anchor() const
+
+    The logical/human readable name of the hyperlink
+*/
+
+/*!
+    \internal
+    \fn QString QAccessibleHyperlinkInterface::anchorTarget() const
+
+    The target url of the hyperlink
+*/
+
+/*!
+    \internal
+    \fn int QAccessibleHyperlinkInterface::startIndex() const
+
+    Returns the start index that will refer to the first character in the text where the hyperlink
+    begins. The index corresponds to the index that the QAccessibleTextInterface needs in order
+    to find the start of the hyperlink.
+
+*/
+
+/*!
+    \internal
+    \fn int QAccessibleHyperlinkInterface::endIndex() const
+
+    Returns the end index that will refer to the first character in the text where the hyperlink
+    begins. The index corresponds to the index that the QAccessibleTextInterface needs in order
+    to find the end of the hyperlink.
+*/
+
+QAccessibleHyperlinkInterface::~QAccessibleHyperlinkInterface()
+{
+
+}
+
 #endif // QT_NO_ACCESSIBILITY
 
 QT_END_NAMESPACE

src/gui/accessible/qaccessible.h

@@ -384,7 +384,8 @@ public:
         ActionInterface,
         ImageInterface,
         TableInterface,
-        TableCellInterface
+        TableCellInterface,
+        HyperlinkInterface
     };
 
     enum TextBoundaryType {
@@ -451,6 +452,7 @@ class QAccessibleActionInterface;
 class QAccessibleImageInterface;
 class QAccessibleTableInterface;
 class QAccessibleTableCellInterface;
+class QAccessibleHyperlinkInterface;
 class QAccessibleTableModelChangeEvent;
 
 class Q_GUI_EXPORT QAccessibleInterface
@@ -508,6 +510,9 @@ public:
     inline QAccessibleTableCellInterface *tableCellInterface()
     { return reinterpret_cast<QAccessibleTableCellInterface *>(interface_cast(QAccessible::TableCellInterface)); }
 
+    inline QAccessibleHyperlinkInterface *hyperlinkInterface()
+    { return reinterpret_cast<QAccessibleHyperlinkInterface *>(interface_cast(QAccessible::HyperlinkInterface)); }
+
     virtual void virtual_hook(int id, void *data);
 
     virtual void *interface_cast(QAccessible::InterfaceType)
@@ -659,6 +664,17 @@ public:
     virtual QPoint imagePosition() const = 0;
 };
 
+class Q_GUI_EXPORT QAccessibleHyperlinkInterface
+{
+public:
+    virtual ~QAccessibleHyperlinkInterface();
+
+    virtual QString anchor() const = 0;
+    virtual QString anchorTarget() const = 0;
+    virtual int startIndex() const = 0;
+    virtual int endIndex() const = 0;
+    virtual bool isValid() const = 0;
+};
 
 class Q_GUI_EXPORT QAccessibleEvent
 {