1 files changed, 122 insertions, 0 deletions
diff --git a/layout/forms/nsHTMLButtonControlFrame.h b/layout/forms/nsHTMLButtonControlFrame.h
new file mode 100644
index 0000000000..7c84cd9d9e
--- /dev/null
+++ b/layout/forms/nsHTMLButtonControlFrame.h
@@ -0,0 +1,122 @@
+/* -*- 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/. */
+
+#ifndef nsHTMLButtonControlFrame_h___
+#define nsHTMLButtonControlFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsContainerFrame.h"
+#include "nsIFormControlFrame.h"
+#include "nsButtonFrameRenderer.h"
+
+class gfxContext;
+class nsPresContext;
+
+class nsHTMLButtonControlFrame : public nsContainerFrame,
+                                 public nsIFormControlFrame {
+ public:
+  explicit nsHTMLButtonControlFrame(ComputedStyle* aStyle,
+                                    nsPresContext* aPresContext)
+      : nsHTMLButtonControlFrame(aStyle, aPresContext, kClassID) {}
+
+  ~nsHTMLButtonControlFrame();
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot,
+                           PostDestroyData& aPostDestroyData) override;
+
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsHTMLButtonControlFrame)
+
+  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
+
+  virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
+
+  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus& aStatus) override;
+
+  bool GetVerticalAlignBaseline(mozilla::WritingMode aWM,
+                                nscoord* aBaseline) const override;
+
+  bool GetNaturalBaselineBOffset(mozilla::WritingMode aWM,
+                                 BaselineSharingGroup aBaselineGroup,
+                                 nscoord* aBaseline) const override;
+
+  virtual nsresult HandleEvent(nsPresContext* aPresContext,
+                               mozilla::WidgetGUIEvent* aEvent,
+                               nsEventStatus* aEventStatus) override;
+
+  virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
+                    nsIFrame* aPrevInFlow) override;
+
+  ComputedStyle* GetAdditionalComputedStyle(int32_t aIndex) const override;
+  void SetAdditionalComputedStyle(int32_t aIndex,
+                                  ComputedStyle* aComputedStyle) override;
+
+#ifdef DEBUG
+  virtual void AppendFrames(ChildListID aListID,
+                            nsFrameList& aFrameList) override;
+  virtual void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
+                            const nsLineList::iterator* aPrevFrameLine,
+                            nsFrameList& aFrameList) override;
+  virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
+#endif
+
+#ifdef ACCESSIBILITY
+  virtual mozilla::a11y::AccType AccessibleType() override;
+#endif
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override {
+    return MakeFrameName(u"HTMLButtonControl"_ns, aResult);
+  }
+#endif
+
+  virtual bool HonorPrintBackgroundSettings() const override { return false; }
+
+  // nsIFormControlFrame
+  void SetFocus(bool aOn, bool aRepaint) override;
+  virtual nsresult SetFormProperty(nsAtom* aName,
+                                   const nsAString& aValue) override;
+
+  // Inserted child content gets its frames parented by our child block
+  virtual nsContainerFrame* GetContentInsertionFrame() override {
+    return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
+  }
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override {
+    return nsContainerFrame::IsFrameOfType(
+        aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
+  }
+
+  // Return the ::-moz-button-content anonymous box.
+  void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
+
+ protected:
+  nsHTMLButtonControlFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
+                           nsIFrame::ClassID aID);
+
+  virtual bool IsInput() { return false; }
+
+  // Indicates whether we should clip our children's painting to our
+  // border-box (either because of "overflow" or because of legacy reasons
+  // about how <input>-flavored buttons work).
+  bool ShouldClipPaintingToBorderBox();
+
+  // Reflows the button's sole child frame, and computes the desired size
+  // of the button itself from the results.
+  void ReflowButtonContents(nsPresContext* aPresContext,
+                            ReflowOutput& aButtonDesiredSize,
+                            const ReflowInput& aButtonReflowInput,
+                            nsIFrame* aFirstKid);
+
+  nsButtonFrameRenderer mRenderer;
+};
+
+#endif