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cssselector: Report finer granularity for position changes

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This commit is contained in:
Benjamin Otte 2015-07-06 00:21:03 +02:00
parent 6323010e2e
commit 69e396ea0a
1 changed files with 25 additions and 1 deletions
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26
gtk/gtkcssselector.c
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@ -1036,7 +1036,31 @@ comp_pseudoclass_position (const GtkCssSelector *a,
return a->position.b - b->position.b;
}
#define GTK_CSS_CHANGE_PSEUDOCLASS_POSITION GTK_CSS_CHANGE_POSITION
static GtkCssChange
change_pseudoclass_position (const GtkCssSelector *selector)
{
switch (selector->position.type)
{
case POSITION_FORWARD:
if (selector->position.a == 0 && selector->position.b == 1)
return GTK_CSS_CHANGE_FIRST_CHILD;
else
return GTK_CSS_CHANGE_NTH_CHILD;
case POSITION_BACKWARD:
if (selector->position.a == 0 && selector->position.b == 1)
return GTK_CSS_CHANGE_LAST_CHILD;
else
return GTK_CSS_CHANGE_NTH_LAST_CHILD;
case POSITION_ONLY:
return GTK_CSS_CHANGE_FIRST_CHILD | GTK_CSS_CHANGE_LAST_CHILD;
default:
g_assert_not_reached ();
case POSITION_SORTED:
return 0;
}
}
#define GTK_CSS_CHANGE_PSEUDOCLASS_POSITION change_pseudoclass_position(selector)
DEFINE_SIMPLE_SELECTOR(pseudoclass_position, PSEUDOCLASS_POSITION, print_pseudoclass_position,
match_pseudoclass_position, hash_pseudoclass_position, comp_pseudoclass_position,
FALSE, TRUE, FALSE)