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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 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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| 34 | 34 |
| 35 namespace blink { | 35 namespace blink { |
| 36 | 36 |
| 37 LayoutScrollbarPart::LayoutScrollbarPart(ScrollableArea* scrollableArea, | 37 LayoutScrollbarPart::LayoutScrollbarPart(ScrollableArea* scrollableArea, |
| 38 LayoutScrollbar* scrollbar, | 38 LayoutScrollbar* scrollbar, |
| 39 ScrollbarPart part) | 39 ScrollbarPart part) |
| 40 : LayoutBlock(nullptr), | 40 : LayoutBlock(nullptr), |
| 41 m_scrollableArea(scrollableArea), | 41 m_scrollableArea(scrollableArea), |
| 42 m_scrollbar(scrollbar), | 42 m_scrollbar(scrollbar), |
| 43 m_part(part) { | 43 m_part(part) { |
| 44 ASSERT(m_scrollableArea); | 44 DCHECK(m_scrollableArea); |
| 45 } | 45 } |
| 46 | 46 |
| 47 LayoutScrollbarPart::~LayoutScrollbarPart() { | 47 LayoutScrollbarPart::~LayoutScrollbarPart() { |
| 48 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS | 48 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS |
| 49 // We may not have invalidated the painting layer for now, but the | 49 // We may not have invalidated the painting layer for now, but the |
| 50 // scrollable area will invalidate during paint invalidation. | 50 // scrollable area will invalidate during paint invalidation. |
| 51 endShouldKeepAlive(); | 51 endShouldKeepAlive(); |
| 52 #endif | 52 #endif |
| 53 } | 53 } |
| 54 | 54 |
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| 200 void LayoutScrollbarPart::styleWillChange(StyleDifference diff, | 200 void LayoutScrollbarPart::styleWillChange(StyleDifference diff, |
| 201 const ComputedStyle& newStyle) { | 201 const ComputedStyle& newStyle) { |
| 202 LayoutBlock::styleWillChange(diff, newStyle); | 202 LayoutBlock::styleWillChange(diff, newStyle); |
| 203 setInline(false); | 203 setInline(false); |
| 204 } | 204 } |
| 205 | 205 |
| 206 void LayoutScrollbarPart::styleDidChange(StyleDifference diff, | 206 void LayoutScrollbarPart::styleDidChange(StyleDifference diff, |
| 207 const ComputedStyle* oldStyle) { | 207 const ComputedStyle* oldStyle) { |
| 208 LayoutBlock::styleDidChange(diff, oldStyle); | 208 LayoutBlock::styleDidChange(diff, oldStyle); |
| 209 // See adjustStyleBeforeSet() above. | 209 // See adjustStyleBeforeSet() above. |
| 210 ASSERT(!isOrthogonalWritingModeRoot()); | 210 DCHECK(!isOrthogonalWritingModeRoot()); |
| 211 setInline(false); | 211 setInline(false); |
| 212 clearPositionedState(); | 212 clearPositionedState(); |
| 213 setFloating(false); | 213 setFloating(false); |
| 214 if (oldStyle && (diff.needsFullPaintInvalidation() || diff.needsLayout())) | 214 if (oldStyle && (diff.needsFullPaintInvalidation() || diff.needsLayout())) |
| 215 setNeedsPaintInvalidation(); | 215 setNeedsPaintInvalidation(); |
| 216 } | 216 } |
| 217 | 217 |
| 218 void LayoutScrollbarPart::imageChanged(WrappedImagePtr image, | 218 void LayoutScrollbarPart::imageChanged(WrappedImagePtr image, |
| 219 const IntRect* rect) { | 219 const IntRect* rect) { |
| 220 setNeedsPaintInvalidation(); | 220 setNeedsPaintInvalidation(); |
| 221 LayoutBlock::imageChanged(image, rect); | 221 LayoutBlock::imageChanged(image, rect); |
| 222 } | 222 } |
| 223 | 223 |
| 224 LayoutObject* LayoutScrollbarPart::scrollbarStyleSource() const { | 224 LayoutObject* LayoutScrollbarPart::scrollbarStyleSource() const { |
| 225 return (!m_scrollbar) ? nullptr : m_scrollbar->styleSource(); | 225 return (!m_scrollbar) ? nullptr : m_scrollbar->styleSource(); |
| 226 } | 226 } |
| 227 | 227 |
| 228 void LayoutScrollbarPart::setNeedsPaintInvalidation() { | 228 void LayoutScrollbarPart::setNeedsPaintInvalidation() { |
| 229 if (m_scrollbar) { | 229 if (m_scrollbar) { |
| 230 m_scrollbar->setNeedsPaintInvalidation(AllParts); | 230 m_scrollbar->setNeedsPaintInvalidation(AllParts); |
| 231 return; | 231 return; |
| 232 } | 232 } |
| 233 | 233 |
| 234 // This LayoutScrollbarPart is a scroll corner or a resizer. | 234 // This LayoutScrollbarPart is a scroll corner or a resizer. |
| 235 ASSERT(m_part == NoPart); | 235 DCHECK_EQ(m_part, NoPart); |
| 236 if (FrameView* frameView = view()->frameView()) { | 236 if (FrameView* frameView = view()->frameView()) { |
| 237 if (frameView->isFrameViewScrollCorner(this)) { | 237 if (frameView->isFrameViewScrollCorner(this)) { |
| 238 frameView->setScrollCornerNeedsPaintInvalidation(); | 238 frameView->setScrollCornerNeedsPaintInvalidation(); |
| 239 return; | 239 return; |
| 240 } | 240 } |
| 241 } | 241 } |
| 242 | 242 |
| 243 m_scrollableArea->setScrollCornerNeedsPaintInvalidation(); | 243 m_scrollableArea->setScrollCornerNeedsPaintInvalidation(); |
| 244 } | 244 } |
| 245 | 245 |
| 246 } // namespace blink | 246 } // namespace blink |
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