50 lines
1.7 KiB
Go
50 lines
1.7 KiB
Go
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package goquery
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import "golang.org/x/net/html"
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// Is checks the current matched set of elements against a selector and
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// returns true if at least one of these elements matches.
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func (s *Selection) Is(selector string) bool {
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return s.IsMatcher(compileMatcher(selector))
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}
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// IsMatcher checks the current matched set of elements against a matcher and
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// returns true if at least one of these elements matches.
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func (s *Selection) IsMatcher(m Matcher) bool {
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if len(s.Nodes) > 0 {
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if len(s.Nodes) == 1 {
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return m.Match(s.Nodes[0])
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}
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return len(m.Filter(s.Nodes)) > 0
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}
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return false
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}
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// IsFunction checks the current matched set of elements against a predicate and
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// returns true if at least one of these elements matches.
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func (s *Selection) IsFunction(f func(int, *Selection) bool) bool {
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return s.FilterFunction(f).Length() > 0
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}
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// IsSelection checks the current matched set of elements against a Selection object
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// and returns true if at least one of these elements matches.
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func (s *Selection) IsSelection(sel *Selection) bool {
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return s.FilterSelection(sel).Length() > 0
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}
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// IsNodes checks the current matched set of elements against the specified nodes
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// and returns true if at least one of these elements matches.
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func (s *Selection) IsNodes(nodes ...*html.Node) bool {
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return s.FilterNodes(nodes...).Length() > 0
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}
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// Contains returns true if the specified Node is within,
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// at any depth, one of the nodes in the Selection object.
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// It is NOT inclusive, to behave like jQuery's implementation, and
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// unlike Javascript's .contains, so if the contained
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// node is itself in the selection, it returns false.
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func (s *Selection) Contains(n *html.Node) bool {
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return sliceContains(s.Nodes, n)
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}
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