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Ensure containing block has valid height for positioning absolute children

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svn path=/trunk/netsurf/; revision=2680
This commit is contained in:
John Mark Bell 2006-06-29 23:30:06 +00:00
parent f8469d2051
commit 928f949413
1 changed files with 14 additions and 0 deletions
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14
render/layout.c
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@ -158,6 +158,7 @@ bool layout_block_context(struct box *block, struct content *content)
int max_pos_margin = 0;
int max_neg_margin = 0;
int y;
int old_height;
struct box *margin_box;
assert(block->type == BOX_BLOCK ||
@ -296,10 +297,19 @@ bool layout_block_context(struct box *block, struct content *content)
cy = y;
}
/* Before positioning absolute children, ensure box has a
* valid height. */
old_height = box->height;
if (box->height == AUTO)
box->height = 0;
/* Absolutely positioned children. */
if (!layout_absolute_children(box, content))
return false;
/* And restore height for normal layout */
box->height = old_height;
/* Advance to next box. */
if (box->type == BOX_BLOCK && !box->object && box->children) {
y = box->padding[TOP];
@ -2783,6 +2793,10 @@ void layout_compute_offsets(struct box *box,
struct box *containing_block,
int *top, int *right, int *bottom, int *left)
{
assert(containing_block->width != UNKNOWN_WIDTH &&
containing_block->width != AUTO &&
containing_block->height != AUTO);
/* left */
if (box->style->pos[LEFT].pos == CSS_POS_PERCENT)
*left = ((box->style->pos[LEFT].value.percent *