ZacharyZhang-NYandClaude Opus 5.5
4efaf2680f
Stack through StickyHeader, with behavior tests and gallery demos. kit gains Arrive, Settle (paint-time layout check) and Shade. Several actions return named ui.Element results; mygo vet forbids elements in structs. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
package layout
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import "github.com/egoist/mygo/ui"
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// HolyGrailSlots fill a HolyGrail; only Main is required.
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type HolyGrailSlots struct {
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Header, Nav, Main, Aside, Footer func()
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}
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// HolyGrail lays out header, nav, main, aside and footer.
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func HolyGrail(c *ui.Context, s HolyGrailSlots) ui.Element {
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if s.Main == nil {
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panic("layout: HolyGrail needs Main")
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}
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t := c.Theme()
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slot := func(key string, fn func()) ui.Element {
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e := ui.Column(c).Key(key).Gap(t.Space(2)).Padding(t.Space(3))
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return e.Transition(ui.ElementTransition{Enter: &ui.Motion{Collapse: true}, Exit: &ui.Motion{Collapse: true}}).
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Children(fn)
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}
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return ui.Column(c).Fill().Children(func() {
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if s.Header != nil {
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slot("header", s.Header).Background(t.Surface)
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}
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ui.Row(c).Grow(1).AlignItems(ui.Stretch).Children(func() {
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if s.Nav != nil {
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slot("nav", s.Nav).Width(t.Rem(12))
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}
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slot("main", s.Main).Grow(1).Basis(0)
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if s.Aside != nil {
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slot("aside", s.Aside).Width(t.Rem(12))
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}
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})
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if s.Footer != nil {
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slot("footer", s.Footer).Background(t.Surface)
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}
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})
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}
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