Bug 372131 - nsLinkableAccessible/nsTextAccessible shouldn't be inherited from nsHyperTextAccessbile, r=davidb

accessible/src/base/nsBaseWidgetAccessible.cpp

@@ -109,14 +109,14 @@ nsLeafAccessible::GetChildAtPoint(PRInt32 aX, PRInt32 aY,
 
 nsLinkableAccessible::
   nsLinkableAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell) :
-  nsHyperTextAccessibleWrap(aNode, aShell),
+  nsAccessibleWrap(aNode, aShell),
   mActionContent(nsnull),
   mIsLink(PR_FALSE),
   mIsOnclick(PR_FALSE)
 {
 }
 
-NS_IMPL_ISUPPORTS_INHERITED0(nsLinkableAccessible, nsHyperTextAccessibleWrap)
+NS_IMPL_ISUPPORTS_INHERITED0(nsLinkableAccessible, nsAccessibleWrap)
 
 ////////////////////////////////////////////////////////////////////////////////
 // nsLinkableAccessible. nsIAccessible
@@ -128,14 +128,13 @@ nsLinkableAccessible::TakeFocus()
   if (actionAcc)
     return actionAcc->TakeFocus();
 
-  return nsHyperTextAccessibleWrap::TakeFocus();
+  return nsAccessibleWrap::TakeFocus();
 }
 
 nsresult
 nsLinkableAccessible::GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState)
 {
-  nsresult rv = nsHyperTextAccessibleWrap::GetStateInternal(aState,
-                                                            aExtraState);
+  nsresult rv = nsAccessibleWrap::GetStateInternal(aState, aExtraState);
   NS_ENSURE_A11Y_SUCCESS(rv, rv);
 
   if (mIsLink) {
@@ -153,7 +152,7 @@ nsLinkableAccessible::GetValue(nsAString& aValue)
 {
   aValue.Truncate();
 
-  nsHyperTextAccessible::GetValue(aValue);
+  nsAccessible::GetValue(aValue);
   if (!aValue.IsEmpty())
     return NS_OK;
 
@@ -206,7 +205,7 @@ nsLinkableAccessible::DoAction(PRUint8 aIndex)
   if (actionAcc)
     return actionAcc->DoAction(aIndex);
   
-  return nsHyperTextAccessibleWrap::DoAction(aIndex);
+  return nsAccessibleWrap::DoAction(aIndex);
 }
 
 NS_IMETHODIMP
@@ -250,14 +249,14 @@ nsresult
 nsLinkableAccessible::Init()
 {
   CacheActionContent();
-  return nsHyperTextAccessibleWrap::Init();
+  return nsAccessibleWrap::Init();
 }
 
 nsresult
 nsLinkableAccessible::Shutdown()
 {
   mActionContent = nsnull;
-  return nsHyperTextAccessibleWrap::Shutdown();
+  return nsAccessibleWrap::Shutdown();
 }
 
 ////////////////////////////////////////////////////////////////////////////////

accessible/src/base/nsBaseWidgetAccessible.h

@@ -75,11 +75,12 @@ public:
 };
 
 /**
-  * A type of accessible for DOM nodes containing an href="" attribute.
-  *  It knows how to report the state of the link ( traveled or not )
-  *  and can activate ( click ) the link programmatically.
-  */
-class nsLinkableAccessible : public nsHyperTextAccessibleWrap
+ * Used for text or image accessible nodes contained by link accessibles or
+ * accessibles for nodes with registered click event handler. It knows how to
+ * report the state of the host link (traveled or not) and can activate (click)
+ * the host accessible programmatically.
+ */
+class nsLinkableAccessible : public nsAccessibleWrap
 {
 public:
   enum { eAction_Jump = 0 };
@@ -96,7 +97,7 @@ public:
   NS_IMETHOD TakeFocus();
   NS_IMETHOD GetKeyboardShortcut(nsAString& _retval);
 
-  // nsIHyperLinkAccessible
+  // nsIAccessibleHyperLink
   NS_IMETHOD GetURI(PRInt32 i, nsIURI **aURI);
 
   // nsAccessNode

accessible/src/base/nsTextAccessible.cpp

@@ -50,12 +50,6 @@ nsLinkableAccessible(aDOMNode, aShell)
 { 
 }
 
-// Make sure we don't support text or other irrelevant interfaces.
-// We have nsLinkableAccessible in our inheritance chain as a convenience in order to
-// get link actions and states on the text accessibles. Windows screen readers expect that.
-NS_IMPL_ISUPPORTS_INHERITED2(nsTextAccessible, nsAccessNode,
-                             nsAccessible, nsIAccessible)
-
 /**
   * We are text
   */

accessible/src/base/nsTextAccessible.h

@@ -49,8 +49,6 @@
 class nsTextAccessible : public nsLinkableAccessible
 {
 public:
-  NS_DECL_ISUPPORTS_INHERITED
-
   nsTextAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
 
   // nsIAccessible

accessible/src/html/nsHTMLTextAccessible.cpp

@@ -57,6 +57,8 @@ nsTextAccessibleWrap(aDomNode, aShell)
 { 
 }
 
+NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLTextAccessible, nsTextAccessible)
+
 NS_IMETHODIMP
 nsHTMLTextAccessible::GetName(nsAString& aName)
 {

accessible/src/html/nsHTMLTextAccessible.h

@@ -50,7 +50,10 @@ class nsHTMLTextAccessible : public nsTextAccessibleWrap
 {
 public:
   nsHTMLTextAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
-  
+
+  // nsISupports
+  NS_DECL_ISUPPORTS_INHERITED
+
   // nsIAccessible
   NS_IMETHOD GetName(nsAString& aName);
 

accessible/src/msaa/nsHTMLImageAccessibleWrap.cpp

@@ -44,6 +44,6 @@ NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLImageAccessibleWrap,
                              nsHTMLImageAccessible)
 
 IMPL_IUNKNOWN_INHERITED1(nsHTMLImageAccessibleWrap,
-                         nsHyperTextAccessibleWrap,
+                         nsAccessibleWrap,
                          CAccessibleImage);
 

accessible/src/xul/nsXULTextAccessible.h

@@ -41,11 +41,8 @@
 #define _nsXULTextAccessible_H_
 
 #include "nsBaseWidgetAccessible.h"
-#include "nsTextAccessibleWrap.h"
 #include "nsHyperTextAccessibleWrap.h"
 
-class nsIWeakReference;
-
 class nsXULTextAccessible : public nsHyperTextAccessibleWrap
 {