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

42 lines
1.1 KiB
Go

package overlay
import (
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
)
type HoverCardOptions struct {
// Width is the card's in dots; zero means 160.
Width int
}
type hoverKey struct{}
// HoverCard shows card below trigger while either is hovered.
func HoverCard(c *ui.Context, text string, o HoverCardOptions, trigger func(), card func()) ui.Element {
k := pixel.K(c)
w := pixel.Or("HoverCard Width", o.Width, 160)
wrap := ui.Box(c)
last := ui.Local(wrap, hoverKey{}, func() ui.Rect { return ui.Rect{} })
b := wrap.Bounds()
px, py, _ := wrap.PointerPosition()
show := hint(c, wrap, 0) || last.Contains(b.X+px, b.Y+py)
wrap.Children(trigger)
*last = ui.Rect{}
if !show {
return wrap
}
ww, _ := c.Size()
ui.Overlay(c, func() {
e := ui.Column(c).Absolute().Left(max(0, min(b.X, ww-k.D(w)))).Top(b.Y + b.H).Width(k.D(w)).
Padding(k.D(6)).Role(ui.RoleGroup).Label(text)
*last = e.Bounds()
e.Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
g.Frame(0, 0, g.W, g.H, pixel.Window, pixel.Face)
}).Children(card)
})
return wrap
}