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1 /* | 1 /* |
2 * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2008 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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54 , m_pressedPart(NoPart) | 54 , m_pressedPart(NoPart) |
55 , m_pressedPos(0) | 55 , m_pressedPos(0) |
56 , m_scrollPos(0) | 56 , m_scrollPos(0) |
57 , m_draggingDocument(false) | 57 , m_draggingDocument(false) |
58 , m_documentDragPos(0) | 58 , m_documentDragPos(0) |
59 , m_enabled(true) | 59 , m_enabled(true) |
60 , m_scrollTimer(this, &Scrollbar::autoscrollTimerFired) | 60 , m_scrollTimer(this, &Scrollbar::autoscrollTimerFired) |
61 , m_overlapsResizer(false) | 61 , m_overlapsResizer(false) |
62 , m_isAlphaLocked(false) | 62 , m_isAlphaLocked(false) |
63 , m_elasticOverscroll(0) | 63 , m_elasticOverscroll(0) |
| 64 , m_trackBackgroundNeedsRepaint(true) |
| 65 , m_thumbNeedsRepaint(true) |
64 { | 66 { |
65 if (!m_theme) | 67 if (!m_theme) |
66 m_theme = ScrollbarTheme::theme(); | 68 m_theme = ScrollbarTheme::theme(); |
67 | 69 |
68 m_theme->registerScrollbar(this); | 70 m_theme->registerScrollbar(this); |
69 | 71 |
70 // FIXME: This is ugly and would not be necessary if we fix cross-platform c
ode to actually query for | 72 // FIXME: This is ugly and would not be necessary if we fix cross-platform c
ode to actually query for |
71 // scrollbar thickness and use it when sizing scrollbars (rather than leavin
g one dimension of the scrollbar | 73 // scrollbar thickness and use it when sizing scrollbars (rather than leavin
g one dimension of the scrollbar |
72 // alone when sizing). | 74 // alone when sizing). |
73 int thickness = m_theme->scrollbarThickness(controlSize); | 75 int thickness = m_theme->scrollbarThickness(controlSize); |
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534 return 0; | 536 return 0; |
535 | 537 |
536 if (m_orientation == HorizontalScrollbar) | 538 if (m_orientation == HorizontalScrollbar) |
537 return m_scrollableArea->scrollPosition().x() - m_scrollableArea->minimu
mScrollPosition().x(); | 539 return m_scrollableArea->scrollPosition().x() - m_scrollableArea->minimu
mScrollPosition().x(); |
538 | 540 |
539 return m_scrollableArea->scrollPosition().y() - m_scrollableArea->minimumScr
ollPosition().y(); | 541 return m_scrollableArea->scrollPosition().y() - m_scrollableArea->minimumScr
ollPosition().y(); |
540 } | 542 } |
541 | 543 |
542 void Scrollbar::setNeedsPaintInvalidation() | 544 void Scrollbar::setNeedsPaintInvalidation() |
543 { | 545 { |
| 546 if (m_theme->shouldRepaintAllPartsOnInvalidation()) { |
| 547 m_trackBackgroundNeedsRepaint = true; |
| 548 m_thumbNeedsRepaint = true; |
| 549 } |
544 if (m_scrollableArea) | 550 if (m_scrollableArea) |
545 m_scrollableArea->setScrollbarNeedsPaintInvalidation(this); | 551 m_scrollableArea->setScrollbarNeedsPaintInvalidation(this); |
546 } | 552 } |
547 | 553 |
548 } // namespace blink | 554 } // namespace blink |
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