Listen for document unload and kill the autocomplete popup if it's open. Bug 257354, r+sr=ben.

toolkit/components/satchel/src/nsFormFillController.cpp

@@ -78,6 +78,7 @@ NS_INTERFACE_MAP_BEGIN(nsFormFillController)
   NS_INTERFACE_MAP_ENTRY(nsIDOMKeyListener)
   NS_INTERFACE_MAP_ENTRY(nsIDOMFormListener)
   NS_INTERFACE_MAP_ENTRY(nsIDOMMouseListener)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMLoadListener)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIFormFillController)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIDOMEventListener, nsIDOMFocusListener)
 NS_INTERFACE_MAP_END
@@ -758,6 +759,51 @@ nsFormFillController::MouseOut(nsIDOMEvent* aMouseEvent)
   return NS_OK;
 }
 
+////////////////////////////////////////////////////////////////////////
+//// nsIDOMLoadListener
+
+NS_IMETHODIMP
+nsFormFillController::Load(nsIDOMEvent *aLoadEvent)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFormFillController::BeforeUnload(nsIDOMEvent *aLoadEvent)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFormFillController::Unload(nsIDOMEvent *aLoadEvent)
+{
+  if (mFocusedInput) {
+    nsCOMPtr<nsIDOMEventTarget> target;
+    aLoadEvent->GetTarget(getter_AddRefs(target));
+
+    nsCOMPtr<nsIDOMDocument> eventDoc = do_QueryInterface(target);
+    nsCOMPtr<nsIDOMDocument> inputDoc;
+    mFocusedInput->GetOwnerDocument(getter_AddRefs(inputDoc));
+
+    if (eventDoc == inputDoc)
+      StopControllingInput();
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFormFillController::Abort(nsIDOMEvent *aLoadEvent)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFormFillController::Error(nsIDOMEvent *aLoadEvent)
+{
+  return NS_OK;
+}
+
 ////////////////////////////////////////////////////////////////////////
 //// nsFormFillController
 
@@ -796,6 +842,10 @@ nsFormFillController::AddWindowListeners(nsIDOMWindow *aWindow)
   target->AddEventListener(NS_LITERAL_STRING("input"),
                            NS_STATIC_CAST(nsIDOMFormListener *, this),
                            PR_TRUE);
+
+  target->AddEventListener(NS_LITERAL_STRING("unload"),
+                           NS_STATIC_CAST(nsIDOMLoadListener *, this),
+                           PR_TRUE);
 }
 
 void
@@ -835,6 +885,10 @@ nsFormFillController::RemoveWindowListeners(nsIDOMWindow *aWindow)
   target->RemoveEventListener(NS_LITERAL_STRING("input"),
                               NS_STATIC_CAST(nsIDOMFormListener *, this),
                               PR_TRUE);
+
+  target->RemoveEventListener(NS_LITERAL_STRING("unload"),
+                              NS_STATIC_CAST(nsIDOMLoadListener *, this),
+                              PR_TRUE);
 }
 
 void

toolkit/components/satchel/src/nsFormFillController.h

@@ -49,6 +49,7 @@
 #include "nsIDOMKeyListener.h"
 #include "nsIDOMFormListener.h"
 #include "nsIDOMMouseListener.h"
+#include "nsIDOMLoadListener.h"
 #include "nsCOMPtr.h"
 #include "nsISupportsArray.h"
 #include "nsIDocShell.h"
@@ -62,7 +63,8 @@ class nsFormFillController : public nsIFormFillController,
                              public nsIDOMFocusListener,
                              public nsIDOMKeyListener,
                              public nsIDOMFormListener,
-                             public nsIDOMMouseListener
+                             public nsIDOMMouseListener,
+                             public nsIDOMLoadListener
 {
 public:
   NS_DECL_ISUPPORTS
@@ -95,6 +97,13 @@ public:
   NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent);
   NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent);
 
+  // nsIDOMLoadListener
+  NS_IMETHOD Load(nsIDOMEvent *aLoadEvent);
+  NS_IMETHOD BeforeUnload(nsIDOMEvent *aLoadEvent);
+  NS_IMETHOD Unload(nsIDOMEvent *aLoadEvent);
+  NS_IMETHOD Abort(nsIDOMEvent *aLoadEvent);
+  NS_IMETHOD Error(nsIDOMEvent *aLoadEvent);
+
   nsFormFillController();
   virtual ~nsFormFillController();