Part 10 of cc/ directory shuffles: layers

cc/scrollbar_geometry_stub.h

-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CC_SCROLLBAR_GEOMETRY_STUB_H_
-#define CC_SCROLLBAR_GEOMETRY_STUB_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "cc/base/cc_export.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebScrollbarThemeGeometry.h"
-
-namespace cc {
-
-// This subclass wraps an existing scrollbar geometry class so that
-// another class can derive from it and override specific functions, while
-// passing through the remaining ones.
-class CC_EXPORT ScrollbarGeometryStub : public NON_EXPORTED_BASE(WebKit::WebScrollbarThemeGeometry) {
-public:
-    virtual ~ScrollbarGeometryStub();
-
-    // Allow derived classes to update themselves from a scrollbar.
-    void update(WebKit::WebScrollbar*) { }
-
-    // WebScrollbarThemeGeometry interface
-    virtual WebKit::WebScrollbarThemeGeometry* clone() const OVERRIDE;
-    virtual int thumbPosition(WebKit::WebScrollbar*) OVERRIDE;
-    virtual int thumbLength(WebKit::WebScrollbar*) OVERRIDE;
-    virtual int trackPosition(WebKit::WebScrollbar*) OVERRIDE;
-    virtual int trackLength(WebKit::WebScrollbar*) OVERRIDE;
-    virtual bool hasButtons(WebKit::WebScrollbar*) OVERRIDE;
-    virtual bool hasThumb(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect trackRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect thumbRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual int minimumThumbLength(WebKit::WebScrollbar*) OVERRIDE;
-    virtual int scrollbarThickness(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect backButtonStartRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect backButtonEndRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect forwardButtonStartRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect forwardButtonEndRect(WebKit::WebScrollbar*) OVERRIDE;
-    virtual WebKit::WebRect constrainTrackRectToTrackPieces(WebKit::WebScrollbar*, const WebKit::WebRect&) OVERRIDE;
-    virtual void splitTrack(WebKit::WebScrollbar*, const WebKit::WebRect& track, WebKit::WebRect& startTrack, WebKit::WebRect& thumb, WebKit::WebRect& endTrack) OVERRIDE;
-
-protected:
-    explicit ScrollbarGeometryStub(scoped_ptr<WebKit::WebScrollbarThemeGeometry>);
-
-private:
-    scoped_ptr<WebKit::WebScrollbarThemeGeometry> m_geometry;
-
-    DISALLOW_COPY_AND_ASSIGN(ScrollbarGeometryStub);
-};
-
-}
-
-#endif  // CC_SCROLLBAR_GEOMETRY_STUB_H_