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>
40 lines
953 B
Markdown
40 lines
953 B
Markdown
# 251 DateSeparator · 日期分隔
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## 用途
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在消息流中标出新的一天：今天、昨天，其余显示本地化的完整日期。
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## 最小示例
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```go
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view := func(c *ui.Context) {
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core.Use(c, core.Settings{})
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chat.DateSeparator(c, core.DateOf(time.Now()), chat.DateSeparatorOptions{})
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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 DateSeparator(c *ui.Context, day Date, opts DateSeparatorOptions) ui.Element`。`day` 必须是有效日期。
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| 字段 | 类型 | 默认值 | 含义 |
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| --- | --- | --- | --- |
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| `Today` | `Date` | 零值（窗口时钟） | 判断“今天/昨天”的当天。 |
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## 状态
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细线 + 旧金色菱形 + 说明文字；无交互状态。
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## 事件
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无。
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## 键盘操作
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不获取焦点；辅助技术读出日期文字。
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## 限制
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- 日期格式沿用 Calendar 的文案（`calendar.day_label`），en-US 为“Tuesday, September 1, 2026”，zh-CN 为“2026年9月1日 星期二”。
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