Files
8bitMyGoUI/data/collapsible.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

62 lines
1.5 KiB
Go

package data
import (
"log/slog"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type CollapsibleOptions struct {
Disabled bool
}
type CollapsibleResult struct {
Element ui.Element
Changed bool
}
// Collapsible shows content under its ▸ ▾ header while *open.
func Collapsible(c *ui.Context, title string, open *bool, o CollapsibleOptions, content func()) CollapsibleResult {
k := pixel.K(c)
col := ui.Column(c).AlignItems(ui.Stretch)
res := CollapsibleResult{Element: col}
col.Children(func() {
// The base turns before it learns it is off.
v := *open
shell, base, st := pixel.Shell(c, func() ui.Element {
return ui.CollapsibleBase(c, &v).Trigger.Label(title).Disabled(o.Disabled)
})
if res.Changed = v != *open && !base.IsDisabled(); res.Changed {
*open = v
}
shown := *open
shell.Height(k.D(pixel.LineHeight + 6)).MinWidth(k.D(pixel.Measure(title) + 20)).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
fill, dy := pixel.Face, 0
switch {
case st.Press:
fill, dy = pixel.Shade, 1
case st.Hover:
fill = pixel.Lit
}
g.Frame(0, 0, g.W, g.H, pixel.Raised, fill)
if shown {
g.Sprite(5, 8+dy, down, 0, pixel.Ink, 1)
} else {
g.Sprite(6, 6+dy, pointer, 0, pixel.Ink, 1)
}
g.Text(14, 3+dy, title, pixel.Ink, 1)
g.Finish(st)
})
if shown {
ui.Column(c).Padding(k.D(4), k.D(6)).Children(content)
}
})
if res.Changed {
slog.Debug("8bit: collapsible", "title", title, "open", *open)
}
return res
}