Files
8bitMyGoUI/navigation/bottomnav.go
T
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

56 lines
1.5 KiB
Go

package navigation
import (
"log/slog"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type BottomNavOptions struct {
Disabled bool
}
type BottomNavResult struct {
Element ui.Element
Changed bool
}
// BottomNav is a bar of labeled icons for narrow screens.
func BottomNav(c *ui.Context, text string, items []NavItem, selected *int, o BottomNavOptions) BottomNavResult {
k := pixel.K(c)
res := BottomNavResult{}
// The bases turn before they learn they are off.
v := *selected
res.Element = ui.RadioGroup(c, func() {
for i, it := range items {
shell, _, st := pixel.Shell(c, func() ui.Element {
return ui.RadioBase(c, &v, i).Label(it.Label).Disabled(o.Disabled)
})
w := max(pixel.Measure(it.Label), 12) + 12
shell.Size(k.D(w), k.D(16+pixel.LineHeight)).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
ink := pixel.Faint
if i == *selected {
ink = pixel.Accent
g.HLine(2, 0, g.W-4, pixel.Accent)
} else if st.Hover {
ink = pixel.Ink
}
g.Sprite((g.W-it.Icon.W)/2, 2, it.Icon, 0, ink, 1)
g.Text((g.W-pixel.Measure(it.Label))/2, 14, it.Label, ink, 1)
g.Finish(st)
})
}
}).Row().Gap(k.D(4)).Padding(k.D(2), k.D(6)).Label(text).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
g.Rect(0, 0, g.W, g.H, pixel.Face)
g.HLine(0, 0, g.W, pixel.Edge)
})
if res.Changed = keep(c, v, selected, o.Disabled); res.Changed {
slog.Debug("8bit: bottom nav", "label", text, "selected", *selected)
}
return res
}