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>
53 lines
1.5 KiB
Markdown
53 lines
1.5 KiB
Markdown
# 428 EventPopover · 事件浮层
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## 用途
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在锚点旁显示事件摘要：时间、地点、重复、参与者与提醒，并提供编辑与删除入口。
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## 最小示例
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```go
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loc := time.Local
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ev := exampleEvents(loc)[0]
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open := false
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view := func(c *ui.Context) {
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core.Use(c, core.Settings{})
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chip := datetime.EventChip(c, ev, datetime.EventChipOptions{Location: loc})
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if chip.Clicked() {
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open = true
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}
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r := datetime.EventPopover(c, chip, &open, ev, datetime.EventPopoverOptions{Location: loc})
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if r.Delete() {
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fmt.Println("delete", ev.ID)
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}
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}
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ui.Render(view, 400, 300, 1)
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```
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## 参数
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`func EventPopover(c *ui.Context, anchor ui.Element, open *bool, ev CalendarEvent, opts EventPopoverOptions) EventPopoverResult`
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| 字段 | 类型 | 默认值 | 含义 |
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| --- | --- | --- | --- |
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| `Location` | `*time.Location` | 必填 | 切分日期与显示时间所用的时区；为 nil 时 panic，不做隐式 UTC 转换。 |
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| `Hour12` | `bool` | false | 12 小时制显示时间。 |
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| `ReadOnly` | `bool` | false | 隐藏编辑与删除。 |
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| `Disabled` | `bool` | false | 禁用：不响应点击、拖动与快捷键，弹层随之关闭。 |
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## 状态
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打开（160 ms 淡入，减少动画时直接显示）、只读、禁用（自动关闭）。
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## 事件
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`Edit()`、`Delete()` 报告点击并关闭浮层；删除只报告，确认由调用方决定。
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## 键盘操作
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- Tab 到达关闭、删除与编辑；Escape 或点击外部关闭。
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## 限制
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- 浮层尺寸受窗口限制，内容超出时滚动。
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