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1 /* | 1 /* |
2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 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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604 // This method needs to behave correctly in the following situations: | 604 // This method needs to behave correctly in the following situations: |
605 // - When the descendant doesn't have a spanner placeholder but should have
one (return true) | 605 // - When the descendant doesn't have a spanner placeholder but should have
one (return true) |
606 // - When the descendant doesn't have a spanner placeholder and still should
not have one (return false) | 606 // - When the descendant doesn't have a spanner placeholder and still should
not have one (return false) |
607 // - When the descendant has a spanner placeholder but should no longer have
one (return false) | 607 // - When the descendant has a spanner placeholder but should no longer have
one (return false) |
608 // - When the descendant has a spanner placeholder and should still have one
(return true) | 608 // - When the descendant has a spanner placeholder and should still have one
(return true) |
609 | 609 |
610 // We assume that we're inside the flow thread. This function is not to be c
alled otherwise. | 610 // We assume that we're inside the flow thread. This function is not to be c
alled otherwise. |
611 ASSERT(descendant->isDescendantOf(this)); | 611 ASSERT(descendant->isDescendantOf(this)); |
612 | 612 |
613 // The spec says that column-span only applies to in-flow block-level elemen
ts. | 613 // The spec says that column-span only applies to in-flow block-level elemen
ts. |
614 if (descendant->style()->columnSpan() != ColumnSpanAll || !descendant->isBox
() || descendant->isInline() || descendant->isFloatingOrOutOfFlowPositioned()) | 614 if (descendant->style()->getColumnSpan() != ColumnSpanAll || !descendant->is
Box() || descendant->isInline() || descendant->isFloatingOrOutOfFlowPositioned()
) |
615 return false; | 615 return false; |
616 | 616 |
617 if (!descendant->containingBlock()->isLayoutBlockFlow()) { | 617 if (!descendant->containingBlock()->isLayoutBlockFlow()) { |
618 // Needs to be in a block-flow container, and not e.g. a table. | 618 // Needs to be in a block-flow container, and not e.g. a table. |
619 return false; | 619 return false; |
620 } | 620 } |
621 | 621 |
622 // This looks like a spanner, but if we're inside something unbreakable or s
omething that | 622 // This looks like a spanner, but if we're inside something unbreakable or s
omething that |
623 // establishes a new formatting context, it's not to be treated as one. | 623 // establishes a new formatting context, it's not to be treated as one. |
624 for (LayoutBox* ancestor = toLayoutBox(descendant)->parentBox(); ancestor; a
ncestor = ancestor->containingBlock()) { | 624 for (LayoutBox* ancestor = toLayoutBox(descendant)->parentBox(); ancestor; a
ncestor = ancestor->containingBlock()) { |
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975 } | 975 } |
976 if (canContainSpannerInParentFragmentationContext(*object)) | 976 if (canContainSpannerInParentFragmentationContext(*object)) |
977 next = object->nextInPreOrder(&root); | 977 next = object->nextInPreOrder(&root); |
978 else | 978 else |
979 next = object->nextInPreOrderAfterChildren(&root); | 979 next = object->nextInPreOrderAfterChildren(&root); |
980 } | 980 } |
981 return true; | 981 return true; |
982 } | 982 } |
983 | 983 |
984 } // namespace blink | 984 } // namespace blink |
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