Make :target work for history loads too. Bug 197277, r+sr=dbaron

content/html/document/src/nsHTMLContentSink.cpp

@@ -426,7 +426,7 @@ public:
 
   void StartLayout();
 
-  void ScrollToRef();
+  void ScrollToRef(PRBool aReallyScroll);
   void TryToScrollToRef();
 
   void AddBaseTagInfo(nsIHTMLContent* aContent);
@@ -2741,8 +2741,7 @@ HTMLContentSink::DidBuildModel(PRInt32 aQualityLevel)
       PRUint32 LoadType;
       docShell->GetLoadType(&LoadType);
 
-      if (!(LoadType & nsIDocShell::LOAD_CMD_HISTORY))
-        ScrollToRef();
+      ScrollToRef(LoadType & nsIDocShell::LOAD_CMD_HISTORY == 0);
     }
   }
 
@@ -2813,6 +2812,7 @@ HTMLContentSink::Notify(nsITimer *timer)
   }
 
   // Now try and scroll to the reference
+  // XXX Should we scroll unconditionally for history loads??
   TryToScrollToRef();
 
   mNotificationTimer = 0;
@@ -4309,11 +4309,11 @@ HTMLContentSink::TryToScrollToRef()
     return;
   }
 
-  ScrollToRef();
+  ScrollToRef(PR_TRUE);
 }
 
 void
-HTMLContentSink::ScrollToRef()
+HTMLContentSink::ScrollToRef(PRBool aReallyScroll)
 {
   // XXX Duplicate code in nsXMLContentSink.
   // XXX Be sure to change both places if you make changes here.
@@ -4346,7 +4346,7 @@ HTMLContentSink::ScrollToRef()
 
       // Check an empty string which might be caused by the UTF-8 conversion
       if (!ref.IsEmpty()) {
-        rv = shell->GoToAnchor(ref, PR_TRUE);
+        rv = shell->GoToAnchor(ref, aReallyScroll);
       } else {
         rv = NS_ERROR_FAILURE;
       }
@@ -4362,7 +4362,7 @@ HTMLContentSink::ScrollToRef()
           rv = CharsetConvRef(docCharset, unescapedRef, ref);
 
           if (NS_SUCCEEDED(rv) && !ref.IsEmpty())
-            rv = shell->GoToAnchor(ref, PR_TRUE);
+            rv = shell->GoToAnchor(ref, aReallyScroll);
         }
       }
 

content/xml/document/src/nsXMLContentSink.cpp

@@ -94,6 +94,7 @@
 #include "nsIWebNavigation.h"
 #include "nsIScriptElement.h"
 #include "nsStyleLinkElement.h"
+#include "nsIImageLoadingContent.h"
 #include "nsEscape.h"
 #include "nsICharsetConverterManager.h"
 #include "nsICharsetConverterManager2.h"
@@ -127,7 +128,10 @@ public:
     : mInner(do_GetWeakReference(aInner))
   {
   }
-
+  virtual ~nsScriptLoaderObserverProxy()
+  {
+  }
+  
   NS_DECL_ISUPPORTS
   NS_DECL_NSISCRIPTLOADEROBSERVER
 
@@ -325,7 +329,7 @@ nsXMLContentSink::WillBuildModel(void)
 nsresult CharsetConvRef(const nsString& aDocCharset, const nsCString& aRefInDocCharset, nsString& aRefInUnicode);
 
 void
-nsXMLContentSink::ScrollToRef()
+nsXMLContentSink::ScrollToRef(PRBool aReallyScroll)
 {
   // XXX Duplicate code in nsHTMLContentSink.
   // XXX Be sure to change both places if you make changes here.
@@ -353,7 +357,7 @@ nsXMLContentSink::ScrollToRef()
 
         // Check an empty string which might be caused by the UTF-8 conversion
         if (!ref.IsEmpty())
-          rv = shell->GoToAnchor(ref, PR_TRUE);
+          rv = shell->GoToAnchor(ref, aReallyScroll);
         else
           rv = NS_ERROR_FAILURE;
 
@@ -368,7 +372,7 @@ nsXMLContentSink::ScrollToRef()
             rv = CharsetConvRef(docCharset, unescapedRef, ref);
 
             if (NS_SUCCEEDED(rv) && !ref.IsEmpty())
-              rv = shell->GoToAnchor(ref, PR_TRUE);
+              rv = shell->GoToAnchor(ref, aReallyScroll);
           }
         }
       }
@@ -406,8 +410,6 @@ nsXMLContentSink::MaybePrettyPrint()
 NS_IMETHODIMP
 nsXMLContentSink::DidBuildModel(PRInt32 aQualityLevel)
 {
-  nsresult rv = NS_OK;
-
   // XXX this is silly; who cares?
   PRInt32 i, ns = mDocument->GetNumberOfShells();
   for (i = 0; i < ns; i++) {
@@ -458,12 +460,10 @@ nsXMLContentSink::DidBuildModel(PRInt32 aQualityLevel)
     if (docShell) {
       PRUint32 documentLoadType = 0;
       docShell->GetLoadType(&documentLoadType);
-      if (!(documentLoadType & nsIDocShell::LOAD_CMD_HISTORY)) {
-        ScrollToRef();
-      }
+      ScrollToRef(documentLoadType & nsIDocShell::LOAD_CMD_HISTORY == 0);
     }
 #else
-    ScrollToRef();
+    ScrollToRef(PR_TRUE);
 #endif
 
     mDocument->EndLoad();
@@ -549,11 +549,9 @@ nsXMLContentSink::OnTransformDone(nsresult aResult,
   //  Scroll to Anchor only if the document was *not* loaded through history means. 
   PRUint32 documentLoadType = 0;
   docShell->GetLoadType(&documentLoadType);
-  if (!(documentLoadType & nsIDocShell::LOAD_CMD_HISTORY)) {
-    ScrollToRef();
-  }
+  ScrollToRef(documentLoadType & nsIDocShell::LOAD_CMD_HISTORY == 0);
 #else
-  ScrollToRef();
+  ScrollToRef(PR_TRUE);
 #endif
 
   originalDocument->EndLoad();

content/xml/document/src/nsXMLContentSink.h

@@ -170,7 +170,7 @@ protected:
   static void
   GetElementFactory(PRInt32 aNameSpaceID, nsIElementFactory** aResult);
 
-  void ScrollToRef();
+  void ScrollToRef(PRBool aReallyScroll);
   
   nsresult MaybePrettyPrint();