--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderTextControl.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
+ *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RenderTextControl_h
+#define RenderTextControl_h
+
+#include "RenderBlock.h"
+
+namespace WebCore {
+
+class VisibleSelection;
+class TextControlInnerElement;
+class TextControlInnerTextElement;
+
+class RenderTextControl : public RenderBlock {
+public:
+    virtual ~RenderTextControl();
+
+    bool wasChangedSinceLastChangeEvent() const { return m_wasChangedSinceLastChangeEvent; }
+    void setChangedSinceLastChangeEvent(bool wasChangedSinceLastChangeEvent) { m_wasChangedSinceLastChangeEvent = wasChangedSinceLastChangeEvent; }
+
+    bool lastChangeWasUserEdit() const { return m_lastChangeWasUserEdit; }
+    void setLastChangeWasUserEdit(bool lastChangeWasUserEdit);
+
+    int selectionStart();
+    int selectionEnd();
+    void setSelectionStart(int);
+    void setSelectionEnd(int);
+    void select();
+    void setSelectionRange(int start, int end);
+    VisibleSelection selection(int start, int end) const;
+
+    virtual void subtreeHasChanged();
+    String text();
+    String textWithHardLineBreaks();
+    void selectionChanged(bool userTriggered);
+
+    VisiblePosition visiblePositionForIndex(int index);
+    int indexForVisiblePosition(const VisiblePosition&);
+
+    void updatePlaceholderVisibility(bool, bool);
+
+protected:
+    RenderTextControl(Node*, bool);
+
+    int scrollbarThickness() const;
+    void adjustInnerTextStyle(const RenderStyle* startStyle, RenderStyle* textBlockStyle) const;
+    void setInnerTextValue(const String&);
+
+    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
+
+    void createSubtreeIfNeeded(TextControlInnerElement* innerBlock);
+    void hitInnerTextElement(HitTestResult&, int x, int y, int tx, int ty);
+    void forwardEvent(Event*);
+
+    int textBlockWidth() const;
+    int textBlockHeight() const;
+
+    float scaleEmToUnits(int x) const;
+
+    static bool hasValidAvgCharWidth(AtomicString family);
+    virtual float getAvgCharWidth(AtomicString family);
+    virtual int preferredContentWidth(float charWidth) const = 0;
+    virtual void adjustControlHeightBasedOnLineHeight(int lineHeight) = 0;
+    virtual void cacheSelection(int start, int end) = 0;
+    virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const = 0;
+    virtual RenderStyle* textBaseStyle() const = 0;
+
+    virtual void updateFromElement();
+    virtual void calcHeight();
+
+    friend class TextIterator;
+    HTMLElement* innerTextElement() const;
+
+    bool m_placeholderVisible;
+
+private:
+    virtual const char* renderName() const { return "RenderTextControl"; }
+    virtual bool isTextControl() const { return true; }
+    virtual void calcPrefWidths();
+    virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
+    virtual bool canHaveChildren() const { return false; }
+    virtual bool avoidsFloats() const { return true; }
+    void setInnerTextStyle(PassRefPtr<RenderStyle>);
+    
+    virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);
+
+    virtual bool canBeProgramaticallyScrolled(bool) const { return true; }
+
+    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
+
+    String finishText(Vector<UChar>&) const;
+
+    bool m_wasChangedSinceLastChangeEvent;
+    bool m_lastChangeWasUserEdit;
+    RefPtr<TextControlInnerTextElement> m_innerText;
+};
+
+inline RenderTextControl* toRenderTextControl(RenderObject* object)
+{ 
+    ASSERT(!object || object->isTextControl());
+    return static_cast<RenderTextControl*>(object);
+}
+
+inline const RenderTextControl* toRenderTextControl(const RenderObject* object)
+{ 
+    ASSERT(!object || object->isTextControl());
+    return static_cast<const RenderTextControl*>(object);
+}
+
+// This will catch anyone doing an unnecessary cast.
+void toRenderTextControl(const RenderTextControl*);
+
+} // namespace WebCore
+
+#endif // RenderTextControl_h