1 files changed, 63 insertions, 0 deletions
diff --git a/layout/generic/nsLeafFrame.cpp b/layout/generic/nsLeafFrame.cpp
new file mode 100644
index 0000000000..2688da3d4b
--- /dev/null
+++ b/layout/generic/nsLeafFrame.cpp
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+/* base class for rendering objects that do not have child lists */
+
+#include "nsLeafFrame.h"
+
+#include "mozilla/PresShell.h"
+#include "nsPresContext.h"
+
+using namespace mozilla;
+
+nsLeafFrame::~nsLeafFrame() = default;
+
+/* virtual */
+void nsLeafFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                   const nsDisplayListSet& aLists) {
+  DO_GLOBAL_REFLOW_COUNT_DSP("nsLeafFrame");
+  DisplayBorderBackgroundOutline(aBuilder, aLists);
+}
+
+/* virtual */
+nscoord nsLeafFrame::GetMinISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_MIN_INLINE_SIZE(this, result);
+  result = GetIntrinsicISize();
+  return result;
+}
+
+/* virtual */
+nscoord nsLeafFrame::GetPrefISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_PREF_INLINE_SIZE(this, result);
+  result = GetIntrinsicISize();
+  return result;
+}
+
+/* virtual */
+LogicalSize nsLeafFrame::ComputeAutoSize(
+    gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize,
+    nscoord aAvailableISize, const LogicalSize& aMargin,
+    const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
+    ComputeSizeFlags aFlags) {
+  const WritingMode wm = GetWritingMode();
+  LogicalSize result(wm, GetIntrinsicISize(), GetIntrinsicBSize());
+  return result.ConvertTo(aWM, wm);
+}
+
+nscoord nsLeafFrame::GetIntrinsicBSize() {
+  MOZ_ASSERT_UNREACHABLE("Someone didn't override Reflow or ComputeAutoSize");
+  return 0;
+}
+
+void nsLeafFrame::SizeToAvailSize(const ReflowInput& aReflowInput,
+                                  ReflowOutput& aDesiredSize) {
+  aDesiredSize.SetSize(aReflowInput.GetWritingMode(),
+                       aReflowInput.AvailableSize());
+  aDesiredSize.SetOverflowAreasToDesiredBounds();
+  FinishAndStoreOverflow(&aDesiredSize, aReflowInput.mStyleDisplay);
+}