1 /* 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "ScrollbarThemeSafari.h" 28 29 #if USE(SAFARI_THEME) 30 31 #include "GraphicsContext.h" 32 #include "IntRect.h" 33 #include "Page.h" 34 #include "PlatformMouseEvent.h" 35 #include "Scrollbar.h" 36 #include "ScrollbarClient.h" 37 #include "ScrollbarThemeWin.h" 38 #include "Settings.h" 39 #include "SoftLinking.h" 40 41 #include <CoreGraphics/CoreGraphics.h> 42 43 // If you have an empty placeholder SafariThemeConstants.h, then include SafariTheme.h 44 // This is a workaround until a version of WebKitSupportLibrary is released with an updated SafariThemeConstants.h 45 #include <SafariTheme/SafariThemeConstants.h> 46 #ifndef SafariThemeConstants_h 47 #include <SafariTheme/SafariTheme.h> 48 #endif 49 50 // FIXME: There are repainting problems due to Aqua scroll bar buttons' visual overflow. 51 52 using namespace std; 53 54 namespace WebCore { 55 56 using namespace SafariTheme; 57 58 ScrollbarTheme* ScrollbarTheme::nativeTheme() 59 { 60 static ScrollbarThemeSafari safariTheme; 61 static ScrollbarThemeWin windowsTheme; 62 if (Settings::shouldPaintNativeControls()) 63 return &windowsTheme; 64 return &safariTheme; 65 } 66 67 // FIXME: Get these numbers from CoreUI. 68 static int cScrollbarThickness[] = { 15, 11 }; 69 static int cRealButtonLength[] = { 28, 21 }; 70 static int cButtonInset[] = { 14, 11 }; 71 static int cButtonHitInset[] = { 3, 2 }; 72 // cRealButtonLength - cButtonInset 73 static int cButtonLength[] = { 14, 10 }; 74 static int cThumbMinLength[] = { 26, 20 }; 75 76 #ifdef DEBUG_ALL 77 SOFT_LINK_DEBUG_LIBRARY(SafariTheme) 78 #else 79 SOFT_LINK_LIBRARY(SafariTheme) 80 #endif 81 82 SOFT_LINK(SafariTheme, paintThemePart, void, __stdcall, 83 (ThemePart part, CGContextRef context, const CGRect& rect, NSControlSize size, ThemeControlState state), 84 (part, context, rect, size, state)) 85 86 static ScrollbarControlState scrollbarControlStateFromThemeState(ThemeControlState state) 87 { 88 ScrollbarControlState s = 0; 89 if (state & ActiveState) 90 s |= ActiveScrollbarState; 91 if (state & EnabledState) 92 s |= EnabledScrollbarState; 93 if (state & PressedState) 94 s |= PressedScrollbarState; 95 return s; 96 } 97 98 ScrollbarThemeSafari::~ScrollbarThemeSafari() 99 { 100 } 101 102 int ScrollbarThemeSafari::scrollbarThickness(ScrollbarControlSize controlSize) 103 { 104 return cScrollbarThickness[controlSize]; 105 } 106 107 bool ScrollbarThemeSafari::hasButtons(Scrollbar* scrollbar) 108 { 109 return scrollbar->enabled() && (scrollbar->orientation() == HorizontalScrollbar ? 110 scrollbar->width() : 111 scrollbar->height()) >= 2 * (cRealButtonLength[scrollbar->controlSize()] - cButtonHitInset[scrollbar->controlSize()]); 112 } 113 114 bool ScrollbarThemeSafari::hasThumb(Scrollbar* scrollbar) 115 { 116 return scrollbar->enabled() && (scrollbar->orientation() == HorizontalScrollbar ? 117 scrollbar->width() : 118 scrollbar->height()) >= 2 * cButtonInset[scrollbar->controlSize()] + cThumbMinLength[scrollbar->controlSize()] + 1; 119 } 120 121 static IntRect buttonRepaintRect(const IntRect& buttonRect, ScrollbarOrientation orientation, ScrollbarControlSize controlSize, bool start) 122 { 123 IntRect paintRect(buttonRect); 124 if (orientation == HorizontalScrollbar) { 125 paintRect.setWidth(cRealButtonLength[controlSize]); 126 if (!start) 127 paintRect.setX(buttonRect.x() - (cRealButtonLength[controlSize] - buttonRect.width())); 128 } else { 129 paintRect.setHeight(cRealButtonLength[controlSize]); 130 if (!start) 131 paintRect.setY(buttonRect.y() - (cRealButtonLength[controlSize] - buttonRect.height())); 132 } 133 134 return paintRect; 135 } 136 137 IntRect ScrollbarThemeSafari::backButtonRect(Scrollbar* scrollbar, ScrollbarPart part, bool painting) 138 { 139 IntRect result; 140 141 // Windows just has single arrows. 142 if (part == BackButtonEndPart) 143 return result; 144 145 int thickness = scrollbarThickness(scrollbar->controlSize()); 146 if (scrollbar->orientation() == HorizontalScrollbar) 147 result = IntRect(scrollbar->x(), scrollbar->y(), cButtonLength[scrollbar->controlSize()], thickness); 148 else 149 result = IntRect(scrollbar->x(), scrollbar->y(), thickness, cButtonLength[scrollbar->controlSize()]); 150 if (painting) 151 return buttonRepaintRect(result, scrollbar->orientation(), scrollbar->controlSize(), true); 152 return result; 153 } 154 155 IntRect ScrollbarThemeSafari::forwardButtonRect(Scrollbar* scrollbar, ScrollbarPart part, bool painting) 156 { 157 IntRect result; 158 159 // Windows just has single arrows. 160 if (part == ForwardButtonStartPart) 161 return result; 162 163 int thickness = scrollbarThickness(scrollbar->controlSize()); 164 if (scrollbar->orientation() == HorizontalScrollbar) 165 result = IntRect(scrollbar->x() + scrollbar->width() - cButtonLength[scrollbar->controlSize()], scrollbar->y(), cButtonLength[scrollbar->controlSize()], thickness); 166 else 167 result = IntRect(scrollbar->x(), scrollbar->y() + scrollbar->height() - cButtonLength[scrollbar->controlSize()], thickness, cButtonLength[scrollbar->controlSize()]); 168 if (painting) 169 return buttonRepaintRect(result, scrollbar->orientation(), scrollbar->controlSize(), false); 170 return result; 171 } 172 173 static IntRect trackRepaintRect(const IntRect& trackRect, ScrollbarOrientation orientation, ScrollbarControlSize controlSize) 174 { 175 IntRect paintRect(trackRect); 176 if (orientation == HorizontalScrollbar) 177 paintRect.inflateX(cButtonLength[controlSize]); 178 else 179 paintRect.inflateY(cButtonLength[controlSize]); 180 181 return paintRect; 182 } 183 184 IntRect ScrollbarThemeSafari::trackRect(Scrollbar* scrollbar, bool painting) 185 { 186 if (painting || !hasButtons(scrollbar)) 187 return scrollbar->frameRect(); 188 189 IntRect result; 190 int thickness = scrollbarThickness(scrollbar->controlSize()); 191 if (scrollbar->orientation() == HorizontalScrollbar) 192 return IntRect(scrollbar->x() + cButtonLength[scrollbar->controlSize()], scrollbar->y(), scrollbar->width() - 2 * cButtonLength[scrollbar->controlSize()], thickness); 193 return IntRect(scrollbar->x(), scrollbar->y() + cButtonLength[scrollbar->controlSize()], thickness, scrollbar->height() - 2 * cButtonLength[scrollbar->controlSize()]); 194 } 195 196 int ScrollbarThemeSafari::minimumThumbLength(Scrollbar* scrollbar) 197 { 198 return cThumbMinLength[scrollbar->controlSize()]; 199 } 200 201 bool ScrollbarThemeSafari::shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent& evt) 202 { 203 return evt.shiftKey() && evt.button() == LeftButton; 204 } 205 206 void ScrollbarThemeSafari::paintTrackBackground(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& trackRect) 207 { 208 if (!SafariThemeLibrary()) 209 return; 210 NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize; 211 ThemeControlState state = 0; 212 if (scrollbar->client()->isActive()) 213 state |= ActiveState; 214 if (hasButtons(scrollbar)) 215 state |= EnabledState; 216 paintThemePart(scrollbar->orientation() == VerticalScrollbar ? VScrollTrackPart : HScrollTrackPart, graphicsContext->platformContext(), trackRect, size, state); 217 } 218 219 void ScrollbarThemeSafari::paintButton(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& buttonRect, ScrollbarPart part) 220 { 221 if (!SafariThemeLibrary()) 222 return; 223 NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize; 224 ThemeControlState state = 0; 225 if (scrollbar->client()->isActive()) 226 state |= ActiveState; 227 if (hasButtons(scrollbar)) 228 state |= EnabledState; 229 if (scrollbar->pressedPart() == part) 230 state |= PressedState; 231 if (part == BackButtonStartPart) 232 paintThemePart(scrollbar->orientation() == VerticalScrollbar ? ScrollUpArrowPart : ScrollLeftArrowPart, graphicsContext->platformContext(), 233 buttonRect, size, state); 234 else if (part == ForwardButtonEndPart) 235 paintThemePart(scrollbar->orientation() == VerticalScrollbar ? ScrollDownArrowPart : ScrollRightArrowPart, graphicsContext->platformContext(), 236 buttonRect, size, state); 237 } 238 239 void ScrollbarThemeSafari::paintThumb(GraphicsContext* graphicsContext, Scrollbar* scrollbar, const IntRect& thumbRect) 240 { 241 if (!SafariThemeLibrary()) 242 return; 243 NSControlSize size = scrollbar->controlSize() == SmallScrollbar ? NSSmallControlSize : NSRegularControlSize; 244 ThemeControlState state = 0; 245 if (scrollbar->client()->isActive()) 246 state |= ActiveState; 247 if (hasThumb(scrollbar)) 248 state |= EnabledState; 249 if (scrollbar->pressedPart() == ThumbPart) 250 state |= PressedState; 251 paintThemePart(scrollbar->orientation() == VerticalScrollbar ? VScrollThumbPart : HScrollThumbPart, graphicsContext->platformContext(), 252 thumbRect, size, state); 253 } 254 255 } 256 257 #endif 258