ZacharyZhang-NYandClaude Opus 5.5
bcce34cda1
MyGo v0.5.5 returns ui.Element as a checked value handle instead of a
pointer. Migrated with `mygo migrate-ui`, then fixed what the codemod
leaves to review:
- Element nil checks become .Valid(); absent elements are ui.Element{}.
- Input handlers and paint callbacks run outside the build pass, where
elements expire and Context methods are inert: read IsDisabled into a
local during the build, keep a ui.Handle for Focus, use c.Services()
for clipboard access, create ui.Local state during the build.
- Add core.AutoFocus: v0.5.5 records an overlay's opener after its
content builds, so same-frame autofocus lost focus restore on close.
It focuses one frame later; cascader rows defer their focus likewise.
- core.OverlayLayer identifies build passes by the root element, not
c.Now(), which repeats across passes and under the Tester clock.
- Context menus survive the opening press counted as PressedOutside;
split button tooltip no longer reorders its open menu; disabled
menubar rows pass presses to the panel; Form defers blur-started
async checks so the growing message no longer moves Submit away
from the release; Combobox drops its disabled copy now that MyGo
blocks typing under a disabled wrapper (canary flipped to a guard).
- The Tester clock is virtual: tests use Advance/Now instead of
time.Sleep/time.Now and read element state inside the view. The web
mirror advances the clock to wall time before each frame and input.
- AGENTS.md and docs describe the value Element API and the new pin.
Snapshot goldens are darwin-only and were not re-verified here.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
46 lines
1.5 KiB
Go
46 lines
1.5 KiB
Go
package chat
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import (
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"fmt"
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"math"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/internal"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
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)
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// typingPeriod is one cycle of the dots, in milliseconds.
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const typingPeriod = 1200
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// TypingIndicator shows that name is typing: three fading dots, or static text under reduced motion.
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func TypingIndicator(c *ui.Context, name string) ui.Element {
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if name == "" {
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panic("mujica: TypingIndicator needs a name")
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}
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k := core.Tokens(c)
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u := core.Density(c).Unit()
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label := fmt.Sprintf(core.Msg(c, "typing_indicator.label"), name)
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still := c.Preferences().ReduceMotion
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row := ui.Row(c).Gap(u*2).AlignItems(ui.Center).Padding(u, u*3).Radius(theme.CardRadius).
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Background(k.Surface).Border(theme.BorderWidth, k.Border).Role(ui.RoleStatus).Label(label).AlignSelf(ui.Start)
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row.Children(func() {
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if still {
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ui.Text(c, label).FontSize(core.FontSize(c, theme.CaptionSize)).TextColor(k.TextMuted).SingleLine()
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return
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}
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ui.Box(c).Size(30, 12).Draw(func(p *ui.Painter, r ui.Rect) {
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// Repaints only while shown: the painter asks for the next frame.
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p.AnimationFrame()
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phase := float64(p.Now().UnixMilli()%typingPeriod) / typingPeriod
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for i := range 3 {
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a := 0.35 + 0.65*(0.5+0.5*math.Cos(2*math.Pi*(phase-float64(i)/6)))
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cx := internal.Snap(p, r.X+5+float32(i)*10)
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p.Fill(ui.Rect{X: cx - 3, Y: r.Y + r.H/2 - 3, W: 6, H: 6}, k.TextMuted.Alpha(float32(a)), 3)
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}
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})
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})
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return row
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}
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