| /* |
| * 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 LayoutScrollbarTheme_h |
| #define LayoutScrollbarTheme_h |
| |
| #include "platform/scroll/ScrollbarTheme.h" |
| |
| namespace blink { |
| |
| class PlatformMouseEvent; |
| |
| class LayoutScrollbarTheme final : public ScrollbarTheme { |
| public: |
| ~LayoutScrollbarTheme() override { } |
| |
| int scrollbarThickness(ScrollbarControlSize controlSize) override { return ScrollbarTheme::theme()->scrollbarThickness(controlSize); } |
| |
| ScrollbarButtonsPlacement buttonsPlacement() const override { return ScrollbarTheme::theme()->buttonsPlacement(); } |
| |
| void paintScrollCorner(GraphicsContext*, const DisplayItemClientWrapper&, const IntRect& cornerRect) override; |
| |
| bool shouldCenterOnThumb(const ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& event) override { return ScrollbarTheme::theme()->shouldCenterOnThumb(scrollbar, event); } |
| bool shouldSnapBackToDragOrigin(const ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& event) override { return ScrollbarTheme::theme()->shouldSnapBackToDragOrigin(scrollbar, event); } |
| |
| double initialAutoscrollTimerDelay() override { return ScrollbarTheme::theme()->initialAutoscrollTimerDelay(); } |
| double autoscrollTimerDelay() override { return ScrollbarTheme::theme()->autoscrollTimerDelay(); } |
| |
| void registerScrollbar(ScrollbarThemeClient* scrollbar) override { return ScrollbarTheme::theme()->registerScrollbar(scrollbar); } |
| void unregisterScrollbar(ScrollbarThemeClient* scrollbar) override { return ScrollbarTheme::theme()->unregisterScrollbar(scrollbar); } |
| |
| int minimumThumbLength(const ScrollbarThemeClient*) override; |
| |
| void buttonSizesAlongTrackAxis(const ScrollbarThemeClient*, int& beforeSize, int& afterSize); |
| |
| static LayoutScrollbarTheme* layoutScrollbarTheme(); |
| |
| protected: |
| bool hasButtons(const ScrollbarThemeClient*) override; |
| bool hasThumb(const ScrollbarThemeClient*) override; |
| |
| IntRect backButtonRect(const ScrollbarThemeClient*, ScrollbarPart, bool painting = false) override; |
| IntRect forwardButtonRect(const ScrollbarThemeClient*, ScrollbarPart, bool painting = false) override; |
| IntRect trackRect(const ScrollbarThemeClient*, bool painting = false) override; |
| |
| void paintScrollbarBackground(GraphicsContext*, const ScrollbarThemeClient*) override; |
| void paintTrackBackground(GraphicsContext*, const ScrollbarThemeClient*, const IntRect&) override; |
| void paintTrackPiece(GraphicsContext*, const ScrollbarThemeClient*, const IntRect&, ScrollbarPart) override; |
| void paintButton(GraphicsContext*, const ScrollbarThemeClient*, const IntRect&, ScrollbarPart) override; |
| void paintThumb(GraphicsContext*, const ScrollbarThemeClient*, const IntRect&) override; |
| void paintTickmarks(GraphicsContext*, const ScrollbarThemeClient*, const IntRect&) override; |
| |
| IntRect constrainTrackRectToTrackPieces(const ScrollbarThemeClient*, const IntRect&) override; |
| }; |
| |
| } // namespace blink |
| |
| #endif // LayoutScrollbarTheme_h |