diff -r 000000000000 -r 6474c204b198 layout/forms/nsFileControlFrame.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/forms/nsFileControlFrame.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,157 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsFileControlFrame_h___
+#define nsFileControlFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsBlockFrame.h"
+#include "nsIFormControlFrame.h"
+#include "nsIDOMEventListener.h"
+#include "nsIAnonymousContentCreator.h"
+#include "nsCOMPtr.h"
+
+class nsTextControlFrame;
+class nsIDOMDragEvent;
+
+class nsFileControlFrame : public nsBlockFrame,
+                           public nsIFormControlFrame,
+                           public nsIAnonymousContentCreator
+{
+public:
+  nsFileControlFrame(nsStyleContext* aContext);
+
+  virtual void Init(nsIContent* aContent,
+                    nsIFrame*   aParent,
+                    nsIFrame*   aPrevInFlow) MOZ_OVERRIDE;
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) MOZ_OVERRIDE;
+
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS
+
+  // nsIFormControlFrame
+  virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) MOZ_OVERRIDE;
+  virtual void SetFocus(bool aOn, bool aRepaint) MOZ_OVERRIDE;
+
+  virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
+#endif
+
+  virtual nsresult AttributeChanged(int32_t         aNameSpaceID,
+                                    nsIAtom*        aAttribute,
+                                    int32_t         aModType) MOZ_OVERRIDE;
+  virtual void ContentStatesChanged(mozilla::EventStates aStates) MOZ_OVERRIDE;
+  virtual bool IsLeaf() const MOZ_OVERRIDE
+  {
+    return true;
+  }
+
+  // nsIAnonymousContentCreator
+  virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
+  virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
+                                        uint32_t aFilter) MOZ_OVERRIDE;
+
+#ifdef ACCESSIBILITY
+  virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
+#endif
+
+  typedef bool (*AcceptAttrCallback)(const nsAString&, void*);
+
+protected:
+
+  class MouseListener;
+  friend class MouseListener;
+  class MouseListener : public nsIDOMEventListener {
+  public:
+    NS_DECL_ISUPPORTS
+
+    MouseListener(nsFileControlFrame* aFrame)
+     : mFrame(aFrame)
+    {}
+    virtual ~MouseListener() {}
+
+    void ForgetFrame() {
+      mFrame = nullptr;
+    }
+
+  protected:
+    nsFileControlFrame* mFrame;
+  };
+
+  class SyncDisabledStateEvent;
+  friend class SyncDisabledStateEvent;
+  class SyncDisabledStateEvent : public nsRunnable
+  {
+  public:
+    SyncDisabledStateEvent(nsFileControlFrame* aFrame)
+      : mFrame(aFrame)
+    {}
+
+    NS_IMETHOD Run() MOZ_OVERRIDE {
+      nsFileControlFrame* frame = static_cast<nsFileControlFrame*>(mFrame.GetFrame());
+      NS_ENSURE_STATE(frame);
+
+      frame->SyncDisabledState();
+      return NS_OK;
+    }
+
+  private:
+    nsWeakFrame mFrame;
+  };
+
+  class DnDListener: public MouseListener {
+  public:
+    DnDListener(nsFileControlFrame* aFrame)
+      : MouseListener(aFrame)
+    {}
+
+    NS_DECL_NSIDOMEVENTLISTENER
+
+    static bool IsValidDropData(nsIDOMDragEvent* aEvent);
+  };
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
+  {
+    return nsBlockFrame::IsFrameOfType(aFlags &
+      ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
+  }
+
+  /**
+   * The text box input.
+   * @see nsFileControlFrame::CreateAnonymousContent
+   */
+  nsCOMPtr<nsIContent> mTextContent;
+  /**
+   * The browse button input.
+   * @see nsFileControlFrame::CreateAnonymousContent
+   */
+  nsCOMPtr<nsIContent> mBrowse;
+
+  /**
+   * Drag and drop mouse listener.
+   * This makes sure we don't get used after destruction.
+   */
+  nsRefPtr<DnDListener> mMouseListener;
+
+protected:
+  /**
+   * Sync the disabled state of the content with anonymous children.
+   */
+  void SyncDisabledState();
+
+  /**
+   * Updates the displayed value by using aValue.
+   */
+  void UpdateDisplayedValue(const nsAString& aValue, bool aNotify);
+};
+
+#endif // nsFileControlFrame_h___