Files
ZacharyZhang-NYandClaude Opus 5.5 03e1f91706 Upgrade MyGo to v0.5.5
Elements are now pass-scoped value handles: tests that read bounds
after a frame bind a ui.Handle. pixel tells frames apart by the build
pass's root, since the Tester clock no longer moves on its own.

Fix the regressions the upgrade brought:
- Clipboard reads in input handlers go through c.Services().
- MyGo notes an overlay's opener after building it, so AutoFocus
  inside lost it; pixel.AutoFocus focuses through a Handle, and
  archtest bans the raw call. Dialogs hand the focus back again.
- Elements around a press stay hovered: Tooltip tells a press-given
  focus by focus arriving under the pointer.
- The web host moves the Tester clock with real time, at most 500 ms
  a call, and gives components the real clock.

The gallery's source index also accepts CRLF checkouts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-17 01:31:08 -04:00

76 lines
2.2 KiB
Go

package data
import (
"fmt"
"log/slog"
"time"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type CarouselOptions struct {
// Every turns the page each that many seconds; zero never.
Every int
Disabled bool
}
type CarouselResult struct {
Element ui.Element
Changed bool
}
type carouselKey struct{}
// Carousel turns pages; auto-turning waits on hover, focus, reduce.
func Carousel(c *ui.Context, text string, pages int, page *int, o CarouselOptions, content func(i int)) CarouselResult {
k := pixel.K(c)
if pages < 1 || *page < 0 || *page >= pages {
panic(fmt.Sprintf("data: Carousel page %d of %d", *page, pages))
}
every := pixel.Or("Carousel Every", o.Every, 0)
col := ui.Column(c).AlignItems(ui.Center).Gap(k.D(4)).Role(ui.RoleGroup).Label(text)
since := ui.Local(col, carouselKey{}, func() time.Time { return k.Now() })
old := *page
turn := func(d int) { *page = (*page + d + pages) % pages }
wait := every == 0 || o.Disabled || pixel.Current(c).Inert || k.Reduce() || col.Hovered() || col.FocusWithin()
if wait {
*since = k.Now()
} else if k.Since(c, *since, 4, 4*every) == 4*every {
turn(1)
}
col.Children(func() {
ui.Row(c).Gap(k.D(4)).AlignItems(ui.Center).Children(func() {
if input.IconButton(c, icon.ChevronLeft, k.Msg("prev"), input.IconButtonOptions{Disabled: o.Disabled}).Clicked {
turn(-1)
}
ui.Box(c).Key(*page).Children(func() { content(*page) })
if input.IconButton(c, icon.ChevronRight, k.Msg("next"), input.IconButtonOptions{Disabled: o.Disabled}).Clicked {
turn(1)
}
})
at := *page
ui.Box(c).Size(k.D(pages*6-2), k.D(4)).Role(ui.RoleNone).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
for i := range pages {
if i == at {
g.Rect(i*6, 0, 4, 4, pixel.Accent)
} else {
g.Rect(i*6, 0, 4, 4, pixel.Edge)
g.Rect(i*6+1, 1, 2, 2, pixel.Well)
}
}
})
})
col.Description(fmt.Sprintf("%d/%d", *page+1, pages))
res := CarouselResult{Element: col, Changed: *page != old}
if res.Changed {
*since = k.Now()
slog.Debug("8bit: carousel", "label", text, "page", *page)
}
return res
}