1 files changed, 59 insertions, 0 deletions
diff --git a/layout/generic/FrameChildList.cpp b/layout/generic/FrameChildList.cpp
new file mode 100644
index 000000000..1d2fe25c0
--- /dev/null
+++ b/layout/generic/FrameChildList.cpp
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/layout/FrameChildList.h"
+
+#include "nsIFrame.h"
+
+namespace mozilla {
+namespace layout {
+
+FrameChildListIterator::FrameChildListIterator(const nsIFrame* aFrame)
+  : FrameChildListArrayIterator(mLists)
+{
+  aFrame->GetChildLists(&mLists);
+#ifdef DEBUG
+  // Make sure that there are no duplicate list IDs.
+  FrameChildListIDs ids;
+  uint32_t count = mLists.Length();
+  for (uint32_t i = 0; i < count; ++i) {
+    NS_ASSERTION(!ids.Contains(mLists[i].mID),
+                 "Duplicate item found!");
+    ids |= mLists[i].mID;
+  }
+#endif
+}
+
+#ifdef DEBUG_FRAME_DUMP
+const char*
+ChildListName(FrameChildListID aListID)
+{
+  switch (aListID) {
+    case kPrincipalList: return "";
+    case kPopupList: return "PopupList";
+    case kCaptionList: return "CaptionList";
+    case kColGroupList: return "ColGroupList";
+    case kSelectPopupList: return "SelectPopupList";
+    case kAbsoluteList: return "AbsoluteList";
+    case kFixedList: return "FixedList";
+    case kOverflowList: return "OverflowList";
+    case kOverflowContainersList: return "OverflowContainersList";
+    case kExcessOverflowContainersList: return "ExcessOverflowContainersList";
+    case kOverflowOutOfFlowList: return "OverflowOutOfFlowList";
+    case kFloatList: return "FloatList";
+    case kBulletList: return "BulletList";
+    case kPushedFloatsList: return "PushedFloatsList";
+    case kBackdropList: return "BackdropList";
+    case kNoReflowPrincipalList: return "NoReflowPrincipalList";
+  }
+
+  NS_NOTREACHED("unknown list");
+  return "UNKNOWN_FRAME_CHILD_LIST";
+}
+#endif
+
+} // namespace layout
+} // namespace mozilla