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1 /* | 1 /* |
2 * Copyright (C) 2011 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2011 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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226 bool ScrollbarTheme::shouldSnapBackToDragOrigin( | 226 bool ScrollbarTheme::shouldSnapBackToDragOrigin( |
227 const ScrollbarThemeClient& scrollbar, | 227 const ScrollbarThemeClient& scrollbar, |
228 const PlatformMouseEvent& evt) { | 228 const PlatformMouseEvent& evt) { |
229 IntPoint mousePosition = scrollbar.convertFromRootFrame(evt.position()); | 229 IntPoint mousePosition = scrollbar.convertFromRootFrame(evt.position()); |
230 mousePosition.move(scrollbar.x(), scrollbar.y()); | 230 mousePosition.move(scrollbar.x(), scrollbar.y()); |
231 return Platform::current()->scrollbarBehavior()->shouldSnapBackToDragOrigin( | 231 return Platform::current()->scrollbarBehavior()->shouldSnapBackToDragOrigin( |
232 mousePosition, trackRect(scrollbar), | 232 mousePosition, trackRect(scrollbar), |
233 scrollbar.orientation() == HorizontalScrollbar); | 233 scrollbar.orientation() == HorizontalScrollbar); |
234 } | 234 } |
235 | 235 |
| 236 double ScrollbarTheme::overlayScrollbarFadeOutDelaySeconds() const { |
| 237 // On Mac, fading is controlled by the painting code in ScrollAnimatorMac. |
| 238 return 0.0; |
| 239 } |
| 240 |
| 241 double ScrollbarTheme::overlayScrollbarFadeOutDurationSeconds() const { |
| 242 // On Mac, fading is controlled by the painting code in ScrollAnimatorMac. |
| 243 return 0.0; |
| 244 } |
| 245 |
236 int ScrollbarTheme::thumbPosition(const ScrollbarThemeClient& scrollbar, | 246 int ScrollbarTheme::thumbPosition(const ScrollbarThemeClient& scrollbar, |
237 float scrollPosition) { | 247 float scrollPosition) { |
238 if (scrollbar.enabled()) { | 248 if (scrollbar.enabled()) { |
239 float size = scrollbar.totalSize() - scrollbar.visibleSize(); | 249 float size = scrollbar.totalSize() - scrollbar.visibleSize(); |
240 // Avoid doing a floating point divide by zero and return 1 when | 250 // Avoid doing a floating point divide by zero and return 1 when |
241 // usedTotalSize == visibleSize. | 251 // usedTotalSize == visibleSize. |
242 if (!size) | 252 if (!size) |
243 return 0; | 253 return 0; |
244 float pos = std::max(0.0f, scrollPosition) * | 254 float pos = std::max(0.0f, scrollPosition) * |
245 (trackLength(scrollbar) - thumbLength(scrollbar)) / size; | 255 (trackLength(scrollbar) - thumbLength(scrollbar)) / size; |
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381 return DisplayItem::kScrollbarBackTrack; | 391 return DisplayItem::kScrollbarBackTrack; |
382 case ForwardTrackPart: | 392 case ForwardTrackPart: |
383 return DisplayItem::kScrollbarForwardTrack; | 393 return DisplayItem::kScrollbarForwardTrack; |
384 default: | 394 default: |
385 ASSERT_NOT_REACHED(); | 395 ASSERT_NOT_REACHED(); |
386 return DisplayItem::kScrollbarBackTrack; | 396 return DisplayItem::kScrollbarBackTrack; |
387 } | 397 } |
388 } | 398 } |
389 | 399 |
390 } // namespace blink | 400 } // namespace blink |
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