From 7db1feab2314f93d372d5ccbba016fc1e047f095 Mon Sep 17 00:00:00 2001
From: "bzbarsky%mit.edu"
 <bzbarsky%mit.edu@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Tue, 7 Feb 2006 22:24:47 +0000
Subject: [PATCH] Fix bug 325991 -- spinning event queues requires more care. 
 r=jst, sr=shaver

git-svn-id: svn://10.0.0.236/trunk@189362 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/caps/src/nsScriptSecurityManager.cpp |  7 ++++
 mozilla/layout/printing/nsPrintEngine.cpp    | 41 --------------------
 2 files changed, 7 insertions(+), 41 deletions(-)

diff --git a/mozilla/caps/src/nsScriptSecurityManager.cpp b/mozilla/caps/src/nsScriptSecurityManager.cpp
index ea3e77a87b2..85696a51be3 100644
--- a/mozilla/caps/src/nsScriptSecurityManager.cpp
+++ b/mozilla/caps/src/nsScriptSecurityManager.cpp
@@ -1558,6 +1558,13 @@ nsScriptSecurityManager::CanExecuteScripts(JSContext* cx,
     //-- See if the current window allows JS execution
     nsIScriptContext *scriptContext = GetScriptContext(cx);
     if (!scriptContext) return NS_ERROR_FAILURE;
+
+    if (!scriptContext->GetScriptsEnabled()) {
+        // No scripting on this context, folks
+        *result = PR_FALSE;
+        return NS_OK;
+    }
+    
     nsIScriptGlobalObject *sgo = scriptContext->GetGlobalObject();
 
     if (!sgo) {
diff --git a/mozilla/layout/printing/nsPrintEngine.cpp b/mozilla/layout/printing/nsPrintEngine.cpp
index c33d9a30340..15d749d5b47 100644
--- a/mozilla/layout/printing/nsPrintEngine.cpp
+++ b/mozilla/layout/printing/nsPrintEngine.cpp
@@ -2506,46 +2506,6 @@ nsPrintEngine::ReflowDocList(nsPrintObject* aPO, PRBool aSetPixelScale, PRBool a
   return NS_OK;
 }
 
-PR_STATIC_CALLBACK(void *)
-HandleBarrierEvent(PLEvent *aEvent)
-{
-  PRBool *b = NS_STATIC_CAST(PRBool *, PL_GetEventOwner(aEvent));
-  *b = PR_TRUE;
-  return nsnull;
-}
-
-PR_STATIC_CALLBACK(void)
-DestroyBarrierEvent(PLEvent *aEvent)
-{
-}
-
-static void
-FlushEventQueue()
-{
-  PRBool hitBarrier = PR_FALSE;
-  nsCOMPtr<nsIEventQueue> eventQ;
-  nsresult rv = NS_GetMainEventQ(getter_AddRefs(eventQ));
-  if (NS_FAILED(rv))
-    return;
-
-  PLEvent evt;
-
-  PL_InitEvent(&evt, &hitBarrier, HandleBarrierEvent, DestroyBarrierEvent);
-
-  if (NS_FAILED(eventQ->PostEvent(&evt)))
-    return;
-
-  while (!hitBarrier) {
-    PLEvent *next;
-    eventQ->GetEvent(&next);
-    if (!next) {
-      NS_ERROR("barrier event not found!");
-      return;
-    }
-    eventQ->HandleEvent(next);
-  }
-}
-
 //-------------------------------------------------------
 // Reflow a nsPrintObject
 nsresult
@@ -2756,7 +2716,6 @@ nsPrintEngine::ReflowPrintObject(nsPrintObject * aPO, PRBool aDoCalcShrink)
 
   aPO->mPresContext->SetPageDim(adjRect);
   rv = aPO->mPresShell->InitialReflow(width, height);
-  FlushEventQueue();
   if (NS_SUCCEEDED(rv)) {
     // Transfer Selection Ranges to the new Print PresShell
     nsCOMPtr<nsISelection> selection;