Remove ScrollableArea and Scrollbar

sky/engine/core/editing/EditorCommand.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Igalia S.L.
  *
  * 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 31 matching lines @@
 #include "sky/engine/core/editing/htmlediting.h"
 #include "sky/engine/core/events/Event.h"
 #include "sky/engine/core/frame/FrameHost.h"
 #include "sky/engine/core/frame/FrameView.h"
 #include "sky/engine/core/frame/LocalFrame.h"
 #include "sky/engine/core/frame/Settings.h"
 #include "sky/engine/core/html/HTMLImageElement.h"
 #include "sky/engine/core/page/EditorClient.h"
 #include "sky/engine/core/page/EventHandler.h"
 #include "sky/engine/core/rendering/RenderBox.h"
-#include "sky/engine/platform/scroll/Scrollbar.h"
 #include "sky/engine/public/platform/Platform.h"
 #include "sky/engine/wtf/text/AtomicString.h"
 
 namespace blink {
 
 class EditorInternalCommand {
 public:
     int idForUserMetrics;
     bool (*execute)(LocalFrame&, Event*, EditorCommandSource, const String&);
     bool (*isSupportedFromDOM)(LocalFrame*);
     bool (*isEnabled)(LocalFrame&, Event*, EditorCommandSource);
     TriState (*state)(LocalFrame&, Event*);
     String (*value)(LocalFrame&, Event*);
     bool isTextInsertion;
     bool allowExecutionWhenDisabled;
 };
 
 typedef HashMap<String, const EditorInternalCommand*, CaseFoldingHash> CommandMap;
 
 static const bool notTextInsertion = false;
 static const bool isTextInsertion = true;
 
 static const bool allowExecutionWhenDisabled = true;
 static const bool doNotAllowExecutionWhenDisabled = false;
 
+static const float kMinFractionToStepWhenPaging = 0.875f;
+
 // Related to Editor::selectionForCommand.
 // Certain operations continue to use the target control's selection even if the event handler
 // already moved the selection outside of the text control.
 static LocalFrame* targetFrame(LocalFrame& frame, Event* event)
 {
     if (!event)
         return &frame;
     Node* node = event->target()->toNode();
     if (!node)
         return &frame;
     return node->document().frame();
 }
 
 static unsigned verticalScrollDistance(LocalFrame& frame)
 {
     Element* focusedElement = frame.document()->focusedElement();
     if (!focusedElement)
         return 0;
     RenderObject* renderer = focusedElement->renderer();
     if (!renderer || !renderer->isBox())
         return 0;
     RenderBox& renderBox = toRenderBox(*renderer);
     RenderStyle* style = renderBox.style();
     if (!style)
         return 0;
     if (!(style->overflowY() == OSCROLL || style->overflowY() == OAUTO || focusedElement->hasEditableStyle()))
         return 0;
     int height = std::min<int>(renderBox.clientHeight(),
         frame.view()->height());
-    return static_cast<unsigned>(max(max<int>(height * ScrollableArea::minFractionToStepWhenPaging(), height - ScrollableArea::maxOverlapBetweenPages()), 1));
+    return static_cast<unsigned>(max<int>(height * kMinFractionToStepWhenPaging, 1));
 }
 
 static bool executeCopy(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
     frame.editor().copy();
     return true;
 }
 
 static bool executeCut(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
@@ skipping 528 matching lines @@
 {
     return m_command && m_command->isTextInsertion;
 }
 
 int Editor::Command::idForHistogram() const
 {
     return isSupported() ? m_command->idForUserMetrics : 0;
 }
 
 } // namespace blink