1 files changed, 151 insertions, 0 deletions
diff --git a/layout/forms/nsImageControlFrame.cpp b/layout/forms/nsImageControlFrame.cpp
new file mode 100644
index 0000000000..898d890e04
--- /dev/null
+++ b/layout/forms/nsImageControlFrame.cpp
@@ -0,0 +1,151 @@
+/* -*- 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 "nsImageFrame.h"
+
+#include "mozilla/MouseEvents.h"
+#include "mozilla/PresShell.h"
+#include "nsIFormControlFrame.h"
+#include "nsPresContext.h"
+#include "nsGkAtoms.h"
+#include "nsStyleConsts.h"
+#include "nsLayoutUtils.h"
+#include "nsIContent.h"
+
+using namespace mozilla;
+
+class nsImageControlFrame final : public nsImageFrame,
+                                  public nsIFormControlFrame {
+ public:
+  explicit nsImageControlFrame(ComputedStyle* aStyle,
+                               nsPresContext* aPresContext);
+  ~nsImageControlFrame() final;
+
+  void Init(nsIContent* aContent, nsContainerFrame* aParent,
+            nsIFrame* aPrevInFlow) final;
+
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsImageControlFrame)
+
+  void Reflow(nsPresContext*, ReflowOutput&, const ReflowInput&,
+              nsReflowStatus&) final;
+
+  nsresult HandleEvent(nsPresContext*, WidgetGUIEvent*, nsEventStatus*) final;
+
+#ifdef ACCESSIBILITY
+  mozilla::a11y::AccType AccessibleType() final;
+#endif
+
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const final {
+    return MakeFrameName(u"ImageControl"_ns, aResult);
+  }
+#endif
+
+  Maybe<Cursor> GetCursor(const nsPoint&) final;
+
+  // nsIFormContromFrame
+  void SetFocus(bool aOn, bool aRepaint) final;
+  nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) final;
+};
+
+nsImageControlFrame::nsImageControlFrame(ComputedStyle* aStyle,
+                                         nsPresContext* aPresContext)
+    : nsImageFrame(aStyle, aPresContext, kClassID) {}
+
+nsImageControlFrame::~nsImageControlFrame() = default;
+
+nsIFrame* NS_NewImageControlFrame(PresShell* aPresShell,
+                                  ComputedStyle* aStyle) {
+  return new (aPresShell)
+      nsImageControlFrame(aStyle, aPresShell->GetPresContext());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsImageControlFrame)
+
+void nsImageControlFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
+                               nsIFrame* aPrevInFlow) {
+  nsImageFrame::Init(aContent, aParent, aPrevInFlow);
+
+  if (aPrevInFlow) {
+    return;
+  }
+
+  mContent->SetProperty(nsGkAtoms::imageClickedPoint, new CSSIntPoint(0, 0),
+                        nsINode::DeleteProperty<CSSIntPoint>);
+}
+
+NS_QUERYFRAME_HEAD(nsImageControlFrame)
+  NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsImageFrame)
+
+#ifdef ACCESSIBILITY
+a11y::AccType nsImageControlFrame::AccessibleType() {
+  if (mContent->IsAnyOfHTMLElements(nsGkAtoms::button, nsGkAtoms::input)) {
+    return a11y::eHTMLButtonType;
+  }
+
+  return a11y::eNoType;
+}
+#endif
+
+void nsImageControlFrame::Reflow(nsPresContext* aPresContext,
+                                 ReflowOutput& aDesiredSize,
+                                 const ReflowInput& aReflowInput,
+                                 nsReflowStatus& aStatus) {
+  DO_GLOBAL_REFLOW_COUNT("nsImageControlFrame");
+  DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+  MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+  return nsImageFrame::Reflow(aPresContext, aDesiredSize, aReflowInput,
+                              aStatus);
+}
+
+nsresult nsImageControlFrame::HandleEvent(nsPresContext* aPresContext,
+                                          WidgetGUIEvent* aEvent,
+                                          nsEventStatus* aEventStatus) {
+  NS_ENSURE_ARG_POINTER(aEventStatus);
+
+  // Don't do anything if the event has already been handled by someone
+  if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
+    return NS_OK;
+  }
+
+  if (IsContentDisabled()) {
+    return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
+  }
+
+  *aEventStatus = nsEventStatus_eIgnore;
+
+  if (aEvent->mMessage == eMouseUp &&
+      aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) {
+    // Store click point for HTMLInputElement::SubmitNamesValues
+    // Do this on MouseUp because the specs don't say and that's what IE does
+    auto* lastClickedPoint = static_cast<CSSIntPoint*>(
+        mContent->GetProperty(nsGkAtoms::imageClickedPoint));
+    if (lastClickedPoint) {
+      // normally lastClickedPoint is not null, as it's allocated in Init()
+      nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(
+          aEvent, RelativeTo{this});
+      *lastClickedPoint = TranslateEventCoords(pt);
+    }
+  }
+  return nsImageFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
+}
+
+void nsImageControlFrame::SetFocus(bool aOn, bool aRepaint) {}
+
+Maybe<nsIFrame::Cursor> nsImageControlFrame::GetCursor(const nsPoint&) {
+  StyleCursorKind kind = StyleUI()->Cursor().keyword;
+  if (kind == StyleCursorKind::Auto) {
+    kind = StyleCursorKind::Pointer;
+  }
+  return Some(Cursor{kind, AllowCustomCursorImage::Yes});
+}
+
+nsresult nsImageControlFrame::SetFormProperty(nsAtom* aName,
+                                              const nsAString& aValue) {
+  return NS_OK;
+}