| /* |
| * Copyright (c) 2008, 2009, Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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. |
| */ |
| |
| #include "config.h" |
| #include "core/platform/ScrollbarThemeAuraOrGtk.h" |
| |
| #include "RuntimeEnabledFeatures.h" |
| #include "core/platform/ScrollbarThemeOverlay.h" |
| #include "core/platform/graphics/GraphicsContext.h" |
| #include "platform/PlatformMouseEvent.h" |
| #include "platform/scroll/ScrollbarThemeClient.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebRect.h" |
| #include "public/platform/default/WebThemeEngine.h" |
| |
| namespace WebCore { |
| |
| ScrollbarTheme* ScrollbarTheme::nativeTheme() |
| { |
| if (RuntimeEnabledFeatures::overlayScrollbarsEnabled()) { |
| DEFINE_STATIC_LOCAL(ScrollbarThemeOverlay, theme, (10, 0, ScrollbarThemeOverlay::AllowHitTest, Color(128, 128, 128, 192))); |
| return &theme; |
| } |
| |
| DEFINE_STATIC_LOCAL(ScrollbarThemeAuraOrGtk, theme, ()); |
| return &theme; |
| } |
| |
| int ScrollbarThemeAuraOrGtk::scrollbarThickness(ScrollbarControlSize controlSize) |
| { |
| // Horiz and Vert scrollbars are the same thickness. |
| IntSize scrollbarSize = WebKit::Platform::current()->themeEngine()->getSize(WebKit::WebThemeEngine::PartScrollbarVerticalTrack); |
| return scrollbarSize.width(); |
| } |
| |
| void ScrollbarThemeAuraOrGtk::paintTrackPiece(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect, ScrollbarPart partType) |
| { |
| WebKit::WebThemeEngine::State state = scrollbar->hoveredPart() == partType ? WebKit::WebThemeEngine::StateHover : WebKit::WebThemeEngine::StateNormal; |
| IntRect alignRect = trackRect(scrollbar, false); |
| WebKit::WebThemeEngine::ExtraParams extraParams; |
| WebKit::WebCanvas* canvas = gc->canvas(); |
| extraParams.scrollbarTrack.trackX = alignRect.x(); |
| extraParams.scrollbarTrack.trackY = alignRect.y(); |
| extraParams.scrollbarTrack.trackWidth = alignRect.width(); |
| extraParams.scrollbarTrack.trackHeight = alignRect.height(); |
| WebKit::Platform::current()->themeEngine()->paint(canvas, scrollbar->orientation() == HorizontalScrollbar ? WebKit::WebThemeEngine::PartScrollbarHorizontalTrack : WebKit::WebThemeEngine::PartScrollbarVerticalTrack, state, WebKit::WebRect(rect), &extraParams); |
| } |
| |
| void ScrollbarThemeAuraOrGtk::paintButton(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect, ScrollbarPart part) |
| { |
| WebKit::WebThemeEngine::Part paintPart; |
| WebKit::WebThemeEngine::State state = WebKit::WebThemeEngine::StateNormal; |
| WebKit::WebCanvas* canvas = gc->canvas(); |
| bool checkMin = false; |
| bool checkMax = false; |
| if (scrollbar->orientation() == HorizontalScrollbar) { |
| if (part == BackButtonStartPart) { |
| paintPart = WebKit::WebThemeEngine::PartScrollbarLeftArrow; |
| checkMin = true; |
| } else { |
| paintPart = WebKit::WebThemeEngine::PartScrollbarRightArrow; |
| checkMax = true; |
| } |
| } else { |
| if (part == BackButtonStartPart) { |
| paintPart = WebKit::WebThemeEngine::PartScrollbarUpArrow; |
| checkMin = true; |
| } else { |
| paintPart = WebKit::WebThemeEngine::PartScrollbarDownArrow; |
| checkMax = true; |
| } |
| } |
| if ((checkMin && (scrollbar->currentPos() <= 0)) |
| || (checkMax && scrollbar->currentPos() == scrollbar->maximum())) { |
| state = WebKit::WebThemeEngine::StateDisabled; |
| } else { |
| if (part == scrollbar->pressedPart()) |
| state = WebKit::WebThemeEngine::StatePressed; |
| else if (part == scrollbar->hoveredPart()) |
| state = WebKit::WebThemeEngine::StateHover; |
| } |
| WebKit::Platform::current()->themeEngine()->paint(canvas, paintPart, state, WebKit::WebRect(rect), 0); |
| } |
| |
| void ScrollbarThemeAuraOrGtk::paintThumb(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect) |
| { |
| WebKit::WebThemeEngine::State state; |
| WebKit::WebCanvas* canvas = gc->canvas(); |
| if (scrollbar->pressedPart() == ThumbPart) |
| state = WebKit::WebThemeEngine::StatePressed; |
| else if (scrollbar->hoveredPart() == ThumbPart) |
| state = WebKit::WebThemeEngine::StateHover; |
| else |
| state = WebKit::WebThemeEngine::StateNormal; |
| WebKit::Platform::current()->themeEngine()->paint(canvas, scrollbar->orientation() == HorizontalScrollbar ? WebKit::WebThemeEngine::PartScrollbarHorizontalThumb : WebKit::WebThemeEngine::PartScrollbarVerticalThumb, state, WebKit::WebRect(rect), 0); |
| } |
| |
| bool ScrollbarThemeAuraOrGtk::shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseEvent& evt) |
| { |
| return (evt.shiftKey() && evt.button() == LeftButton) || (evt.button() == MiddleButton); |
| } |
| |
| IntSize ScrollbarThemeAuraOrGtk::buttonSize(ScrollbarThemeClient* scrollbar) |
| { |
| if (scrollbar->orientation() == VerticalScrollbar) { |
| IntSize size = WebKit::Platform::current()->themeEngine()->getSize(WebKit::WebThemeEngine::PartScrollbarUpArrow); |
| return IntSize(size.width(), scrollbar->height() < 2 * size.height() ? scrollbar->height() / 2 : size.height()); |
| } |
| |
| // HorizontalScrollbar |
| IntSize size = WebKit::Platform::current()->themeEngine()->getSize(WebKit::WebThemeEngine::PartScrollbarLeftArrow); |
| return IntSize(scrollbar->width() < 2 * size.width() ? scrollbar->width() / 2 : size.width(), size.height()); |
| } |
| |
| int ScrollbarThemeAuraOrGtk::minimumThumbLength(ScrollbarThemeClient* scrollbar) |
| { |
| if (scrollbar->orientation() == VerticalScrollbar) { |
| IntSize size = WebKit::Platform::current()->themeEngine()->getSize(WebKit::WebThemeEngine::PartScrollbarVerticalThumb); |
| return size.height(); |
| } |
| |
| IntSize size = WebKit::Platform::current()->themeEngine()->getSize(WebKit::WebThemeEngine::PartScrollbarHorizontalThumb); |
| return size.width(); |
| } |
| |
| } // namespace WebCore |