/* * Copyright (C) 2008 Apple 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. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ScrollbarThemeGtk_h #define ScrollbarThemeGtk_h #include "ScrollbarThemeComposite.h" #include <wtf/glib/GRefPtr.h> namespace WebCore { class Scrollbar; class ScrollbarThemeGtk final : public ScrollbarThemeComposite { public: virtual ~ScrollbarThemeGtk(); bool hasButtons(Scrollbar&) override; bool hasThumb(Scrollbar&) override; IntRect backButtonRect(Scrollbar&, ScrollbarPart, bool) override; IntRect forwardButtonRect(Scrollbar&, ScrollbarPart, bool) override; IntRect trackRect(Scrollbar&, bool) override; #ifndef GTK_API_VERSION_2 ScrollbarThemeGtk(); bool paint(Scrollbar&, GraphicsContext&, const IntRect& damageRect) override; ScrollbarButtonPressAction handleMousePressEvent(Scrollbar&, const PlatformMouseEvent&, ScrollbarPart) override; int scrollbarThickness(ScrollbarControlSize) override; int minimumThumbLength(Scrollbar&) override; // TODO: These are the default GTK+ values. At some point we should pull these from the theme itself. double initialAutoscrollTimerDelay() override { return 0.20; } double autoscrollTimerDelay() override { return 0.02; } void themeChanged() override; bool usesOverlayScrollbars() const override { return m_usesOverlayScrollbars; } // When using overlay scrollbars, always invalidate the whole scrollbar when entering/leaving. bool invalidateOnMouseEnterExit() override { return m_usesOverlayScrollbars; } private: void updateThemeProperties(); bool m_hasForwardButtonStartPart : 1; bool m_hasForwardButtonEndPart : 1; bool m_hasBackButtonStartPart : 1; bool m_hasBackButtonEndPart : 1; bool m_usesOverlayScrollbars { false }; #endif // GTK_API_VERSION_2 }; } #endif