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>
64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
package layout
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import (
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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)
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// StackAlign places children across a Stack's direction. Zero stretches a vertical stack and centers a horizontal one.
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type StackAlign int
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const (
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StackAlignAuto StackAlign = iota
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StackAlignStart
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StackAlignCenter
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StackAlignEnd
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StackAlignStretch
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)
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// StackOptions configure a Stack.
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type StackOptions struct {
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// Horizontal lays children left to right; otherwise top to bottom.
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Horizontal bool
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// Gap defaults to SpaceS.
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Gap Space
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Align StackAlign
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// Justify places children along the direction; zero is ui.Start.
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Justify ui.Align
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// Wrap moves children of a horizontal stack onto more lines.
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Wrap bool
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}
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// Stack arranges children in a row or column. A child not built takes no room and no gap.
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func Stack(c *ui.Context, opts StackOptions, children func()) ui.Element {
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if children == nil {
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panic("mujica: Stack needs children")
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}
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if opts.Wrap && !opts.Horizontal {
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panic("mujica: Stack Wrap needs Horizontal")
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}
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e := ui.Column(c)
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if opts.Horizontal {
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e.Row()
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}
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e.Gap(containerSpace(core.Density(c), opts.Gap, SpaceS)).Justify(opts.Justify)
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switch opts.Align {
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case StackAlignAuto:
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case StackAlignStart:
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e.AlignItems(ui.Start)
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case StackAlignCenter:
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e.AlignItems(ui.Center)
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case StackAlignEnd:
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e.AlignItems(ui.End)
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case StackAlignStretch:
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e.AlignItems(ui.Stretch)
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default:
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panic("mujica: invalid StackAlign")
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}
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if opts.Wrap {
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e.Wrap()
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}
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return e.Children(children)
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}
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