1 files changed, 167 insertions, 0 deletions
diff --git a/layout/forms/nsCheckboxRadioFrame.cpp b/layout/forms/nsCheckboxRadioFrame.cpp
new file mode 100644
index 0000000000..e2b8541613
--- /dev/null
+++ b/layout/forms/nsCheckboxRadioFrame.cpp
@@ -0,0 +1,167 @@
+/* -*- 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/. */
+
+#include "nsCheckboxRadioFrame.h"
+
+#include "nsGkAtoms.h"
+#include "nsLayoutUtils.h"
+#include "mozilla/dom/HTMLInputElement.h"
+#include "mozilla/PresShell.h"
+#include "nsIContent.h"
+#include "nsStyleConsts.h"
+
+using namespace mozilla;
+using mozilla::dom::HTMLInputElement;
+
+// #define FCF_NOISY
+
+nsCheckboxRadioFrame* NS_NewCheckboxRadioFrame(PresShell* aPresShell,
+                                               ComputedStyle* aStyle) {
+  return new (aPresShell)
+      nsCheckboxRadioFrame(aStyle, aPresShell->GetPresContext());
+}
+
+nsCheckboxRadioFrame::nsCheckboxRadioFrame(ComputedStyle* aStyle,
+                                           nsPresContext* aPresContext)
+    : nsAtomicContainerFrame(aStyle, aPresContext, kClassID) {}
+
+nsCheckboxRadioFrame::~nsCheckboxRadioFrame() = default;
+
+NS_IMPL_FRAMEARENA_HELPERS(nsCheckboxRadioFrame)
+
+NS_QUERYFRAME_HEAD(nsCheckboxRadioFrame)
+  NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsAtomicContainerFrame)
+
+nscoord nsCheckboxRadioFrame::DefaultSize() {
+  if (StyleDisplay()->HasAppearance()) {
+    return PresContext()->Theme()->GetCheckboxRadioPrefSize();
+  }
+  return CSSPixel::ToAppUnits(9);
+}
+
+/* virtual */
+void nsCheckboxRadioFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                            const nsDisplayListSet& aLists) {
+  DO_GLOBAL_REFLOW_COUNT_DSP("nsCheckboxRadioFrame");
+  DisplayBorderBackgroundOutline(aBuilder, aLists);
+}
+
+/* virtual */
+nscoord nsCheckboxRadioFrame::GetMinISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_MIN_INLINE_SIZE(this, result);
+  result = StyleDisplay()->HasAppearance() ? DefaultSize() : 0;
+  return result;
+}
+
+/* virtual */
+nscoord nsCheckboxRadioFrame::GetPrefISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_PREF_INLINE_SIZE(this, result);
+  result = StyleDisplay()->HasAppearance() ? DefaultSize() : 0;
+  return result;
+}
+
+/* virtual */
+LogicalSize nsCheckboxRadioFrame::ComputeAutoSize(
+    gfxContext* aRC, WritingMode aWM, const LogicalSize& aCBSize,
+    nscoord aAvailableISize, const LogicalSize& aMargin,
+    const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
+    ComputeSizeFlags aFlags) {
+  LogicalSize size(aWM, 0, 0);
+  if (!StyleDisplay()->HasAppearance()) {
+    return size;
+  }
+
+  // Note: this call always set the BSize to NS_UNCONSTRAINEDSIZE.
+  size = nsAtomicContainerFrame::ComputeAutoSize(
+      aRC, aWM, aCBSize, aAvailableISize, aMargin, aBorderPadding,
+      aSizeOverrides, aFlags);
+  size.BSize(aWM) = DefaultSize();
+  return size;
+}
+
+Maybe<nscoord> nsCheckboxRadioFrame::GetNaturalBaselineBOffset(
+    WritingMode aWM, BaselineSharingGroup aBaselineGroup,
+    BaselineExportContext) const {
+  NS_ASSERTION(!IsSubtreeDirty(), "frame must not be dirty");
+
+  if (aBaselineGroup == BaselineSharingGroup::Last) {
+    return Nothing{};
+  }
+
+  if (StyleDisplay()->IsBlockOutsideStyle()) {
+    return Nothing{};
+  }
+
+  // For appearance:none we use a standard CSS baseline, i.e. synthesized from
+  // our margin-box.
+  if (!StyleDisplay()->HasAppearance()) {
+    return Nothing{};
+  }
+
+  if (aWM.IsCentralBaseline()) {
+    return Some(GetLogicalUsedBorderAndPadding(aWM).BStart(aWM) +
+                ContentBSize(aWM) / 2);
+  }
+  // This is for compatibility with Chrome, Safari and Edge (Dec 2016).
+  // Treat radio buttons and checkboxes as having an intrinsic baseline
+  // at the block-end of the control (use the block-end content edge rather
+  // than the margin edge).
+  // For "inverted" lines (typically in writing-mode:vertical-lr), use the
+  // block-start end instead.
+  return Some(aWM.IsLineInverted()
+                  ? GetLogicalUsedBorderAndPadding(aWM).BStart(aWM)
+                  : BSize(aWM) - GetLogicalUsedBorderAndPadding(aWM).BEnd(aWM));
+}
+
+void nsCheckboxRadioFrame::Reflow(nsPresContext* aPresContext,
+                                  ReflowOutput& aDesiredSize,
+                                  const ReflowInput& aReflowInput,
+                                  nsReflowStatus& aStatus) {
+  MarkInReflow();
+  DO_GLOBAL_REFLOW_COUNT("nsCheckboxRadioFrame");
+  DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+  MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+  NS_FRAME_TRACE(
+      NS_FRAME_TRACE_CALLS,
+      ("enter nsCheckboxRadioFrame::Reflow: aMaxSize=%d,%d",
+       aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
+
+  const auto wm = aReflowInput.GetWritingMode();
+  aDesiredSize.SetSize(wm, aReflowInput.ComputedSizeWithBorderPadding(wm));
+
+  if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
+    float inflation = nsLayoutUtils::FontSizeInflationFor(this);
+    aDesiredSize.Width() *= inflation;
+    aDesiredSize.Height() *= inflation;
+  }
+
+  NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
+                 ("exit nsCheckboxRadioFrame::Reflow: size=%d,%d",
+                  aDesiredSize.Width(), aDesiredSize.Height()));
+
+  aDesiredSize.SetOverflowAreasToDesiredBounds();
+  FinishAndStoreOverflow(&aDesiredSize);
+}
+
+void nsCheckboxRadioFrame::SetFocus(bool aOn, bool aRepaint) {}
+
+nsresult nsCheckboxRadioFrame::HandleEvent(nsPresContext* aPresContext,
+                                           WidgetGUIEvent* aEvent,
+                                           nsEventStatus* aEventStatus) {
+  // Check for disabled content so that selection works properly (?).
+  if (IsContentDisabled()) {
+    return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
+  }
+  return NS_OK;
+}
+
+nsresult nsCheckboxRadioFrame::SetFormProperty(nsAtom* aName,
+                                               const nsAString& aValue) {
+  return NS_OK;
+}