Module java.desktop
Package javax.accessibility

Class AccessibleHyperlink

java.lang.Object
javax.accessibility.AccessibleHyperlink
All Implemented Interfaces:
AccessibleAction
Direct Known Subclasses:
JEditorPane.JEditorPaneAccessibleHypertextSupport.HTMLLink
public abstract class AccessibleHyperlink
extends Object
implements AccessibleAction
Encapsulation of a link, or set of links (e.g. client side imagemap) in a Hypertext document
See Also:
Accessible, Accessible.getAccessibleContext(), AccessibleContext, AccessibleText, AccessibleContext.getAccessibleText()

  • Constructor Details

  • Method Details

    • isValid

      public abstract boolean isValid()
      Since the document a link is associated with may have changed, this method returns whether or not this Link is still valid (with respect to the document it references).
      Returns:
      a flag indicating whether this link is still valid with respect to the AccessibleHypertext it belongs to

    • getAccessibleActionCount

      public abstract int getAccessibleActionCount()
      Returns the number of accessible actions available in this Link If there are more than one, the first one is NOT considered the "default" action of this LINK object (e.g. in an HTML imagemap). In general, links will have only one AccessibleAction in them.
      Specified by:
      getAccessibleActionCount in interface AccessibleAction
      Returns:
      the zero-based number of actions in this object

    • doAccessibleAction

      public abstract boolean doAccessibleAction​(int i)
      Performs the specified action on the object.
      Specified by:
      doAccessibleAction in interface AccessibleAction
      Parameters:
      i - zero-based index of actions
      Returns:
      true if the action was performed; otherwise false
      See Also:
      getAccessibleActionCount()

    • getAccessibleActionDescription

      public abstract String getAccessibleActionDescription​(int i)
      Returns a string description of this particular link action. This should be a text string associated with anchoring text, this should be the anchor text. E.g. from HTML: <a href="https://link.nowjava.com?target=http://www.sun.com/access">Accessibility</a> this method would return "Accessibility".

      Similarly, from this HTML: <a HREF="#top"><img src="top-hat.gif" alt="top hat"></a> this method would return "top hat"

      Specified by:
      getAccessibleActionDescription in interface AccessibleAction
      Parameters:
      i - zero-based index of the actions
      Returns:
      a string description of the action
      See Also:
      getAccessibleActionCount()

    • getAccessibleActionObject

      public abstract Object getAccessibleActionObject​(int i)
      Returns an object that represents the link action, as appropriate for that link. E.g. from HTML: <a href="https://link.nowjava.com?target=http://www.sun.com/access">Accessibility</a> this method would return a java.net.URL("http://www.sun.com/access.html");
      Parameters:
      i - zero-based index of the actions
      Returns:
      an object representing the hypertext link itself
      See Also:
      getAccessibleActionCount()

    • getAccessibleActionAnchor

      public abstract Object getAccessibleActionAnchor​(int i)
      Returns an object that represents the link anchor, as appropriate for that link. E.g. from HTML: <a href="https://link.nowjava.com?target=http://www.sun.com/access">Accessibility</a> this method would return a String containing the text: "Accessibility".

      Similarly, from this HTML: <a HREF="#top"><img src="top-hat.gif" alt="top hat"></a> this might return the object ImageIcon("top-hat.gif", "top hat");

      Parameters:
      i - zero-based index of the actions
      Returns:
      an object representing the hypertext anchor
      See Also:
      getAccessibleActionCount()

    • getStartIndex

      public abstract int getStartIndex()
      Gets the index with the hypertext document at which this link begins.
      Returns:
      index of start of link

    • getEndIndex

      public abstract int getEndIndex()
      Gets the index with the hypertext document at which this link ends.
      Returns:
      index of end of link