Bug 5569. Make sure that Terminate() can propogate DidBuildModel() to the sink, and that the sink will ensure an initial reflow has occurred. r=harishd, sr=jst

content/html/document/src/nsHTMLContentSink.cpp

@@ -2383,12 +2383,14 @@ HTMLContentSink::Init(nsIDocument* aDoc,
   mCurrentContext->Begin(eHTMLTag_html, mRoot, 0, -1);
   mContextStack.AppendElement(mCurrentContext);
 
+#ifdef NS_DEBUG
   char* spec;
   (void)aURL->GetSpec(&spec);
   SINK_TRACE(SINK_TRACE_CALLS,
              ("HTMLContentSink::Init: this=%p url='%s'",
               this, spec));
   nsCRT::free(spec);
+#endif
 
   MOZ_TIMER_DEBUGLOG(("Stop: nsHTMLContentSink::Init()\n"));
   MOZ_TIMER_STOP(mWatch);
@@ -2443,11 +2445,19 @@ HTMLContentSink::DidBuildModel(PRInt32 aQualityLevel)
 
 
   // Reflow the last batch of content
-  if (nsnull != mBody) {
+  if (mBody) {
     SINK_TRACE(SINK_TRACE_REFLOW,
                ("HTMLContentSink::DidBuildModel: layout final content"));
     mCurrentContext->FlushTags(PR_TRUE);
   }
+  else if (!mLayoutStarted) {
+    // We never saw the body, and layout never got started. Force
+    // layout *now*, to get an initial reflow.
+    SINK_TRACE(SINK_TRACE_REFLOW,
+               ("HTMLContentSink::DidBuildModel: forcing reflow on empty document"));
+
+    StartLayout();
+  }
 
   ScrollToRef();
 

htmlparser/src/nsParser.cpp

@@ -1414,7 +1414,7 @@ nsresult nsParser::DidBuildModel(nsresult anErrorCode) {
   //One last thing...close any open containers.
   nsresult result=anErrorCode;
 
-  if(mParserEnabled && mParserContext && !mParserContext->mPrevContext) {
+  if(mParserContext && !mParserContext->mPrevContext) {
     if(mParserContext->mDTD) {
       result=mParserContext->mDTD->DidBuildModel(anErrorCode,PRBool(0==mParserContext->mPrevContext),this,mSink);
     }
@@ -1491,11 +1491,10 @@ nsresult nsParser::Terminate(void){
       // Hack - Hold a reference until we are completely done...
       nsCOMPtr<nsIParser> kungFuDeathGrip(this); 
       mInternalState=result;
-      result=DidBuildModel(result);
+      DidBuildModel(result);
+    }
+  }
   return result;
-    }
-  }
-  return mInternalState;
 }
 
 

parser/htmlparser/src/nsParser.cpp

@@ -1414,7 +1414,7 @@ nsresult nsParser::DidBuildModel(nsresult anErrorCode) {
   //One last thing...close any open containers.
   nsresult result=anErrorCode;
 
-  if(mParserEnabled && mParserContext && !mParserContext->mPrevContext) {
+  if(mParserContext && !mParserContext->mPrevContext) {
     if(mParserContext->mDTD) {
       result=mParserContext->mDTD->DidBuildModel(anErrorCode,PRBool(0==mParserContext->mPrevContext),this,mSink);
     }
@@ -1491,11 +1491,10 @@ nsresult nsParser::Terminate(void){
       // Hack - Hold a reference until we are completely done...
       nsCOMPtr<nsIParser> kungFuDeathGrip(this); 
       mInternalState=result;
-      result=DidBuildModel(result);
+      DidBuildModel(result);
+    }
+  }
   return result;
-    }
-  }
-  return mInternalState;
 }