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>
49 lines
1.7 KiB
Go
49 lines
1.7 KiB
Go
package chat
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import (
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"fmt"
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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/icons"
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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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// ScrollToBottomButton shows while away is true, with the unread count; click it to return to the end.
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// While hidden it returns an empty element whose Clicked is false.
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func ScrollToBottomButton(c *ui.Context, away bool, unread int) ui.Element {
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if unread < 0 {
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panic("mujica: ScrollToBottomButton unread must not be negative")
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}
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if !away {
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return ui.Box(c).Absolute().Invisible()
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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 := core.Msg(c, "scroll_to_bottom_button.label")
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if unread > 0 {
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label = fmt.Sprintf(core.Msg(c, "scroll_to_bottom_button.unread"), unread)
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}
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wrap := ui.Row(c).Absolute().Left(0).Right(0).Bottom(u * 3).Justify(ui.Center).PassThrough()
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var b ui.Element
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wrap.Children(func() {
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b = ui.ButtonBase(c).MinHeight(theme.MinHitSize).MinWidth(theme.MinHitSize).Padding(0, u*3).Gap(u*2).
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Radius(theme.MinHitSize/2).Label(label).Background(k.Surface).Border(theme.BorderWidth, k.ControlBorder).
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TextColor(k.Text).Shadow(0, 2, 8, 0, ui.RGBA(0, 0, 0, 0.14)).Transition(core.ColorFade)
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b.Opacity(core.OverlayEnter(c, b))
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internal.Ring(b, k.Focus, theme.MinHitSize/2)
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if b.Hovered() {
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b.Background(k.SurfaceHover)
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}
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b.Children(func() {
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ui.Icon(c, icons.Must("arrow-down")).Size(16, 16)
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if unread > 0 {
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ui.Text(c, fmt.Sprint(unread)).FontFeatures("tnum").FontWeight(600).TextColor(k.AccentText).SingleLine()
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}
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})
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})
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return b
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}
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