Make applet and embed elements focusable. Bug 257488, r=aaronl, sr=jst

content/html/content/src/nsHTMLAppletElement.cpp

@@ -77,6 +77,11 @@ public:
   virtual void DoneAddingChildren();
   virtual PRBool IsDoneAddingChildren();
 
+  // nsIContent
+  // Have to override tabindex for <embed> to act right
+  NS_IMETHOD GetTabIndex(PRInt32* aTabIndex);
+  NS_IMETHOD SetTabIndex(PRInt32 aTabIndex);
+
   virtual PRBool ParseAttribute(nsIAtom* aAttribute,
                                 const nsAString& aValue,
                                 nsAttrValue& aResult);
@@ -143,7 +148,8 @@ NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Name, name)
 NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Object, object)
 NS_IMPL_INT_ATTR(nsHTMLAppletElement, Vspace, vspace)
 NS_IMPL_STRING_ATTR(nsHTMLAppletElement, Width, width)
-
+NS_IMPL_INT_ATTR_DEFAULT_VALUE(nsHTMLAppletElement, TabIndex, tabindex, 0)
+  
 PRBool
 nsHTMLAppletElement::ParseAttribute(nsIAtom* aAttribute,
                                     const nsAString& aValue,

content/html/content/src/nsHTMLSharedElement.cpp

@@ -112,6 +112,11 @@ public:
   // nsIDOMHTMLBaseFontElement
   NS_DECL_NSIDOMHTMLBASEFONTELEMENT
 
+  // nsIContent
+  // Have to override tabindex for <embed> to act right
+  NS_IMETHOD GetTabIndex(PRInt32* aTabIndex);
+  NS_IMETHOD SetTabIndex(PRInt32 aTabIndex);
+  
   virtual PRBool ParseAttribute(nsIAtom* aAttribute,
                                 const nsAString& aValue,
                                 nsAttrValue& aResult);
@@ -206,6 +211,10 @@ NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Color, color)
 NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Face, face)
 NS_IMPL_INT_ATTR(nsHTMLSharedElement, Size, size)
 
+// TabIndex for embed
+NS_IMPL_INT_ATTR_DEFAULT_VALUE(nsHTMLSharedElement, TabIndex, tabindex,
+                               mNodeInfo->Equals(nsHTMLAtoms::embed) ? 0 : -1)
+  
 NS_IMETHODIMP
 nsHTMLSharedElement::GetType(nsAString& aType)
 {
@@ -242,8 +251,6 @@ nsHTMLSharedElement::GetForm(nsIDOMHTMLFormElement** aForm)
 NS_IMPL_URI_ATTR(nsHTMLSharedElement, Href, href)
 NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Target, target)
 
-// spacer element code
-
 PRBool
 nsHTMLSharedElement::ParseAttribute(nsIAtom* aAttribute,
                                     const nsAString& aValue,
@@ -319,6 +326,8 @@ nsHTMLSharedElement::AttributeToString(nsIAtom* aAttribute,
   return nsGenericHTMLElement::AttributeToString(aAttribute, aValue, aResult);
 }
 
+// spacer element code
+
 static void
 SpacerMapAttributesIntoRule(const nsMappedAttributes* aAttributes,
                             nsRuleData* aData)