Remove a lot of Widget APIs.

sky/engine/platform/Widget.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora Ltd.  All rights reserved.
  * Copyright (C) 2013 Google Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 22 matching lines @@
 #include "platform/geometry/IntRect.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class Event;
 class GraphicsContext;
 class HostWindow;
 
-// The Widget class serves as a base class for three kinds of objects:
-// (1) Scrollable areas (ScrollView)
-// (2) Scrollbars (Scrollbar)
-// (3) Plugins (PluginView)
-//
-// Widgets are connected in a hierarchy, with the restriction that plugins and
-// scrollbars are always leaves of the tree. Only ScrollViews can have children
-// (and therefore the Widget class has no concept of children).
+// The Widget class serves as a base class for Scrollbar and FrameView.
 class PLATFORM_EXPORT Widget : public RefCounted<Widget> {
 public:
     Widget();
     virtual ~Widget();
 
     int x() const { return frameRect().x(); }
     int y() const { return frameRect().y(); }
     int width() const { return frameRect().width(); }
     int height() const { return frameRect().height(); }
     IntSize size() const { return frameRect().size(); }
     IntPoint location() const { return frameRect().location(); }
 
     virtual void setFrameRect(const IntRect& frame) { m_frame = frame; }
     const IntRect& frameRect() const { return m_frame; }
     IntRect boundsRect() const { return IntRect(0, 0, width(),  height()); }
 
     void resize(int w, int h) { setFrameRect(IntRect(x(), y(), w, h)); }
     void resize(const IntSize& s) { setFrameRect(IntRect(location(), s)); }
     void move(int x, int y) { setFrameRect(IntRect(x, y, width(), height())); }
     void move(const IntPoint& p) { setFrameRect(IntRect(p, size())); }
 
     virtual void paint(GraphicsContext*, const IntRect&) { }
     void invalidate() { invalidateRect(boundsRect()); }
     virtual void invalidateRect(const IntRect&) = 0;
 
-    bool isSelfVisible() const { return m_selfVisible; } // Whether or not we have been explicitly marked as visible or not.
-    bool isParentVisible() const { return m_parentVisible; } // Whether or not our parent is visible.
-    bool isVisible() const { return m_selfVisible && m_parentVisible; } // Whether or not we are actually visible.
-    virtual void setParentVisible(bool visible) { m_parentVisible = visible; }
-    void setSelfVisible(bool v) { m_selfVisible = v; }
-
     virtual bool isFrameView() const { return false; }
     virtual bool isScrollbar() const { return false; }
-    virtual bool isScrollView() const { return false; }
 
     virtual HostWindow* hostWindow() const { ASSERT_NOT_REACHED(); return 0; }
-    virtual void setParent(Widget*);
+    void setParent(Widget* parent) { m_parent = parent; }
     Widget* parent() const { return m_parent; }
     Widget* root() const;
 
-    virtual void handleEvent(Event*) { }
-
     IntRect convertToRootView(const IntRect&) const;
     IntRect convertFromRootView(const IntRect&) const;
 
     IntPoint convertToRootView(const IntPoint&) const;
     IntPoint convertFromRootView(const IntPoint&) const;
 
     // It is important for cross-platform code to realize that Mac has flipped coordinates. Therefore any code
     // that tries to convert the location of a rect using the point-based convertFromContainingWindow will end
     // up with an inaccurate rect. Always make sure to use the rect-based convertFromContainingWindow method
     // when converting window rects.
     IntRect convertToContainingWindow(const IntRect&) const;
     IntRect convertFromContainingWindow(const IntRect&) const;
 
     IntPoint convertToContainingWindow(const IntPoint&) const;
     IntPoint convertFromContainingWindow(const IntPoint&) const;
     FloatPoint convertFromContainingWindow(const FloatPoint&) const;
 
     // Virtual methods to convert points to/from the containing ScrollView
     virtual IntRect convertToContainingView(const IntRect&) const;
     virtual IntRect convertFromContainingView(const IntRect&) const;
     virtual IntPoint convertToContainingView(const IntPoint&) const;
     virtual IntPoint convertFromContainingView(const IntPoint&) const;
 
-    // Virtual methods to convert points to/from child widgets
-    virtual IntPoint convertChildToSelf(const Widget*, const IntPoint&) const;
-    virtual IntPoint convertSelfToChild(const Widget*, const IntPoint&) const;
-
 private:
     Widget* m_parent;
     IntRect m_frame;
-    bool m_selfVisible;
-    bool m_parentVisible;
 };
 
 } // namespace blink
 
 #endif // Widget_h