void
fz_match_css(fz_context *ctx, fz_css_match *match, fz_css_rule *css, fz_xml *node)
{
fz_css_rule *rule;
fz_css_selector *sel;
fz_css_property *prop, *head, *tail;
const char *s;
for (rule = css; rule; rule = rule->next)
{
sel = rule->selector;
while (sel)
{
if (match_selector(sel, node))
{
for (prop = rule->declaration; prop; prop = prop->next)
add_property(match, prop->name, prop->value, selector_specificity(sel, prop->important));
break;
}
sel = sel->next;
}
}
s = fz_xml_att(node, "style");
if (s)
{
fz_try(ctx)
{
head = tail = prop = fz_parse_css_properties(ctx, s);
while (prop)
{
add_property(match, prop->name, prop->value, INLINE_SPECIFICITY);
tail = prop;
prop = prop->next;
}
if (tail)
tail->next = css->garbage;
css->garbage = head;
}
fz_catch(ctx)
{
fz_warn(ctx, "ignoring style attribute");
}
}
sort_properties(match); /* speed up subsequent value_from_raw_property lookups */
}
void
fz_match_css(fz_context *ctx, fz_css_match *match, fz_css_rule *css, fz_xml *node)
{
fz_css_rule *rule;
fz_css_selector *sel;
fz_css_property *prop, *head, *tail;
const char *s;
for (rule = css; rule; rule = rule->next)
{
sel = rule->selector;
while (sel)
{
if (match_selector(sel, node))
{
for (prop = rule->declaration; prop; prop = prop->next)
add_property(match, prop->name, prop->value, selector_specificity(sel));
break;
}
sel = sel->next;
}
}
s = fz_xml_att(node, "style");
if (s)
{
head = tail = prop = fz_parse_css_properties(ctx, s);
while (prop)
{
add_property(match, prop->name, prop->value, INLINE_SPECIFICITY);
tail = prop;
prop = prop->next;
}
if (tail)
tail->next = css->garbage;
css->garbage = head;
}
}
static int
match_selector(fz_css_selector *sel, fz_xml *node)
{
if (!node)
return 0;
if (sel->combine)
{
/* descendant */
if (sel->combine == ' ')
{
fz_xml *parent = fz_xml_up(node);
while (parent)
{
if (match_selector(sel->left, parent))
if (match_selector(sel->right, node))
return 1;
parent = fz_xml_up(parent);
}
return 0;
}
/* child */
if (sel->combine == '>')
{
fz_xml *parent = fz_xml_up(node);
if (!parent)
return 0;
if (!match_selector(sel->left, parent))
return 0;
if (!match_selector(sel->right, node))
return 0;
}
/* adjacent */
if (sel->combine == '+')
{
fz_xml *prev = fz_xml_prev(node);
while (prev && !fz_xml_tag(prev))
prev = fz_xml_prev(prev);
if (!prev)
return 0;
if (!fz_xml_tag(prev))
return 0;
if (!match_selector(sel->left, prev))
return 0;
if (!match_selector(sel->right, node))
return 0;
}
}
if (sel->name)
{
if (strcmp(sel->name, fz_xml_tag(node)))
return 0;
}
if (sel->cond)
{
if (!match_condition(sel->cond, node))
return 0;
}
return 1;
}
