1 files changed, 105 insertions, 0 deletions
diff --git a/layout/forms/nsNumberControlFrame.h b/layout/forms/nsNumberControlFrame.h
new file mode 100644
index 0000000000..f8437f49f7
--- /dev/null
+++ b/layout/forms/nsNumberControlFrame.h
@@ -0,0 +1,105 @@
+/* -*- 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 nsNumberControlFrame_h__
+#define nsNumberControlFrame_h__
+
+#include "mozilla/Attributes.h"
+#include "nsContainerFrame.h"
+#include "nsTextControlFrame.h"
+#include "nsIFormControlFrame.h"
+#include "nsIAnonymousContentCreator.h"
+#include "nsCOMPtr.h"
+
+class nsITextControlFrame;
+class nsPresContext;
+
+namespace mozilla {
+enum class PseudoStyleType : uint8_t;
+class PresShell;
+class WidgetEvent;
+class WidgetGUIEvent;
+namespace dom {
+class HTMLInputElement;
+}  // namespace dom
+}  // namespace mozilla
+
+/**
+ * This frame type is used for <input type=number>.
+ *
+ * TODO(emilio): Maybe merge with nsTextControlFrame?
+ */
+class nsNumberControlFrame final : public nsTextControlFrame {
+  friend nsIFrame* NS_NewNumberControlFrame(mozilla::PresShell* aPresShell,
+                                            ComputedStyle* aStyle);
+
+  typedef mozilla::PseudoStyleType PseudoStyleType;
+  typedef mozilla::dom::Element Element;
+  typedef mozilla::dom::HTMLInputElement HTMLInputElement;
+  typedef mozilla::WidgetEvent WidgetEvent;
+  typedef mozilla::WidgetGUIEvent WidgetGUIEvent;
+
+  explicit nsNumberControlFrame(ComputedStyle* aStyle,
+                                nsPresContext* aPresContext);
+
+ public:
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsNumberControlFrame)
+
+  void DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData&) override;
+
+#ifdef ACCESSIBILITY
+  mozilla::a11y::AccType AccessibleType() override;
+#endif
+
+  // nsIAnonymousContentCreator
+  nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
+  void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
+                                uint32_t aFilter) override;
+
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const override {
+    return MakeFrameName(u"NumberControl"_ns, aResult);
+  }
+#endif
+
+  /**
+   * If the frame is the frame for an nsNumberControlFrame's up or down spin
+   * button, returns the nsNumberControlFrame. Else returns nullptr.
+   */
+  static nsNumberControlFrame* GetNumberControlFrameForSpinButton(
+      nsIFrame* aFrame);
+
+  enum SpinButtonEnum { eSpinButtonNone, eSpinButtonUp, eSpinButtonDown };
+
+  /**
+   * Returns one of the SpinButtonEnum values to depending on whether the
+   * pointer event is over the spin-up button, the spin-down button, or
+   * neither.
+   */
+  int32_t GetSpinButtonForPointerEvent(WidgetGUIEvent* aEvent) const;
+
+  void SpinnerStateChanged() const;
+
+  bool SpinnerUpButtonIsDepressed() const;
+  bool SpinnerDownButtonIsDepressed() const;
+
+  /**
+   * Our element had HTMLInputElement::Select() called on it.
+   */
+  void HandleSelectCall();
+
+  bool ShouldUseNativeStyleForSpinner() const;
+
+ private:
+  // See nsNumberControlFrame::CreateAnonymousContent for a description of
+  // these.
+  nsCOMPtr<Element> mSpinBox;
+  nsCOMPtr<Element> mSpinUp;
+  nsCOMPtr<Element> mSpinDown;
+};
+
+#endif  // nsNumberControlFrame_h__