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>
101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
package layout
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import (
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"fmt"
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"testing"
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"time"
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"git.zacharyzhang.com/ZacharyZhang-NY/CrychicUI/sound"
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"github.com/egoist/mygo/ui"
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)
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const time2s = 2 * time.Second
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func lines(c *ui.Context, n int) func() {
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return func() {
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for i := range n {
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ui.Text(c, fmt.Sprintf("Line %d", i)).Padding(4)
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}
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}
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}
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func TestScrollAreaEdges(t *testing.T) {
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tt := ui.NewTester(func(c *ui.Context) {
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ScrollArea(c, lines(c, 60)).Size(300, 200)
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}, 300, 200)
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tt.Advance(time2s)
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top, bottom := lum(tt.Image(), 290, 1), lum(tt.Image(), 290, 198)
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if bottom >= top {
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t.Fatal("no bottom shadow while content continues")
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}
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tt.Scroll(150, 100, 0, 200)
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tt.Advance(time2s)
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if lum(tt.Image(), 290, 1) >= top {
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t.Error("no top shadow once scrolled")
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}
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}
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func TestScrollerPages(t *testing.T) {
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forward := 0
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tt := ui.NewTester(func(c *ui.Context) {
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_, _, fwd := Scroller(c, func() {
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for i := range 12 {
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ui.Column(c).Size(90, 40).Children(func() { ui.Text(c, fmt.Sprintf("Tile %d", i)) })
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}
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})
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if fwd.Clicked() {
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forward++
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}
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}, 400, 100)
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taps := count(sound.Tap)
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if err := tt.Click("Scroll back"); err != nil {
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t.Fatal(err)
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}
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if count(sound.Tap) != taps {
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t.Error("disabled back arrow played a cue")
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}
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x5 := find(t, tt, "Tile 5").X
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if err := tt.Click("Scroll forward"); err != nil {
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t.Fatal(err)
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}
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tt.Advance(time2s)
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if count(sound.Tap) != taps+1 || forward != 1 {
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t.Errorf("forward arrow: %d cues, caller saw %d clicks", count(sound.Tap)-taps, forward)
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}
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if x := find(t, tt, "Tile 5").X; x > x5-200 {
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t.Errorf("Tile 5 moved from %v to %v, less than a page", x5, x)
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}
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}
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func TestStickyHeaderStays(t *testing.T) {
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tt := ui.NewTester(func(c *ui.Context) {
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StickyHeader(c, func() { ui.Text(c, "Head") }, lines(c, 60)).Size(300, 200)
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}, 300, 200)
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tt.Advance(time2s)
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y, below := find(t, tt, "Head").Y, find(t, tt, "Line 0")
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shade := lum(tt.Image(), 290, int(below.Y)+2)
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tt.Scroll(150, 150, 0, 300)
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tt.Advance(time2s)
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if find(t, tt, "Head").Y != y {
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t.Error("header moved with the scroll")
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}
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if lum(tt.Image(), 290, int(below.Y)+2) >= shade {
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t.Error("no header shadow once scrolled")
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}
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}
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func TestScrollAreaEdgeFollowsContent(t *testing.T) {
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n := 3
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tt := ui.NewTester(func(c *ui.Context) {
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ScrollArea(c, lines(c, n)).Size(300, 200)
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}, 300, 200)
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tt.Advance(time2s)
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flat := lum(tt.Image(), 290, 198)
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n = 60
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tt.Frame()
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tt.Advance(time2s)
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if lum(tt.Image(), 290, 198) >= flat {
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t.Error("no bottom shadow once content overflows")
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}
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}
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