Split ThemePainter out of LayoutTheme

Source/core/paint/ThemePainter.h

+/*
+ * This file is part of the theme implementation for form controls in WebCore.
+ *
+ * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc.
+ *
+ * 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 ThemePainter_h
+#define ThemePainter_h
+
+#include "platform/ThemeTypes.h"
+
+namespace blink {
+
+class IntRect;
+class LayoutObject;
+
+struct PaintInfo;
+
+class ThemePainter {
+public:
+    // This method is called to paint the widget as a background of the LayoutObject.  A widget's foreground, e.g., the
+    // text of a button, is always rendered by the engine itself.  The boolean return value indicates
+    // whether the CSS border/background should also be painted.
+    bool paint(LayoutObject*, const PaintInfo&, const IntRect&);
+    bool paintBorderOnly(LayoutObject*, const PaintInfo&, const IntRect&);
+    bool paintDecorations(LayoutObject*, const PaintInfo&, const IntRect&);
+
+    virtual bool paintCapsLockIndicator(LayoutObject*, const PaintInfo&, const IntRect&) { return 0; };
+    void paintSliderTicks(LayoutObject*, const PaintInfo&, const IntRect&);
+
+protected:
+#if !USE(NEW_THEME)
+    virtual bool paintCheckbox(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintRadio(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintInnerSpinButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+#endif
+
+    virtual bool paintTextField(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintTextArea(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMenuList(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMenuListButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMeter(LayoutObject*, const PaintInfo&, const IntRect&);
+    virtual bool paintProgressBar(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSliderTrack(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSliderThumb(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSearchField(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSearchFieldCancelButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSearchFieldDecoration(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintSearchFieldResultsDecoration(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+
+    virtual bool paintMediaFullscreenButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }

[Xianzhu, 2015/04/30 04:18:30]

In next CL, I will de-virtualize these paintMediaXXX methods because they have
the same implementation in ThemePainterDefault and ThemePainterMac.

+    virtual bool paintMediaPlayButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaOverlayPlayButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaMuteButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaSliderTrack(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaSliderThumb(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaVolumeSliderContainer(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaVolumeSliderTrack(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaVolumeSliderThumb(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaToggleClosedCaptionsButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaCastButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; };
+    virtual bool paintMediaControlsBackground(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaCurrentTime(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaTimeRemaining(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaFullScreenVolumeSliderTrack(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+    virtual bool paintMediaFullScreenVolumeSliderThumb(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
+
+    bool paintUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
+    bool paintCheckboxUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
+    bool paintRadioUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
+};
+
+} // namespace blink
+
+#endif // ThemePainter_h