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>
67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
package overlay
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import (
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"log/slog"
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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/theme"
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)
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// PopoverOptions configure a Popover.
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type PopoverOptions struct {
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// Title shows in serif at the top and names the panel.
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Title string
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// Width fixes the panel width; zero fits the content, at least the anchor's width.
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Width float32
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// Label names an untitled panel for assistive technology.
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Label string
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}
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// Popover shows content below anchor, or above it, inside the window while *open is true.
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func Popover(c *ui.Context, anchor ui.Element, open *bool, opts PopoverOptions, content func()) ui.Element {
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if !anchor.Valid() {
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panic("mujica: Popover needs an anchor")
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}
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if !*open {
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return ui.Element{}
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}
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core.OverlayLayer(c, open)
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u := core.Density(c).Unit()
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b := anchor.Bounds()
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label := opts.Label
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if opts.Title != "" {
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label = opts.Title
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}
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panel := ui.PopoverBase(c, anchor, open, func(panel ui.Element) {
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core.OverlayStyle(c, panel, OverlayAnchored(c, panel, b))
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panel.Margin(6, 0, 0, 0).Padding(u * 3).Gap(u * 2).MinWidth(PopoverWide(c, b.W)).MaxHeight(PopoverRoom(c, b)).Label(label)
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if opts.Width > 0 {
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panel.Width(PopoverWide(c, opts.Width))
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} else {
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panel.MaxWidth(PopoverWide(c, 360))
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}
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if opts.Title != "" {
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ui.Text(c, opts.Title).Font(theme.SerifFont).FontSize(core.FontSize(c, theme.BodySize+2)).FontWeight(600).Shrink(0)
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}
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ui.Scroll(c).Shrink(1).Children(content)
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})
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if !*open {
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slog.Debug("mujica: popover close")
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}
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return panel
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}
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// PopoverRoom is the tallest a panel below or above anchor b may be.
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func PopoverRoom(c *ui.Context, b ui.Rect) float32 {
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_, h := c.Size()
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return max(b.Y, h-b.Y-b.H) - 16
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}
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// PopoverWide caps a panel width w to the window.
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func PopoverWide(c *ui.Context, w float32) float32 {
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ww, _ := c.Size()
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return min(w, ww-8)
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}
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