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>
1.3 KiB
1.3 KiB
429 CurrentTimeIndicator · 当前时间线
用途
填满父元素，按当前时间在当天中的比例画一条横线，用于时间网格。
最小示例
view := func(c *ui.Context) {
core.Use(c, core.Settings{})
ui.Box(c).Size(200, 240).Children(func() {
datetime.CurrentTimeIndicator(c, datetime.CurrentTimeIndicatorOptions{Location: time.Local})
})
}
ui.Render(view, 400, 300, 1)
参数
func CurrentTimeIndicator(c *ui.Context, opts CurrentTimeIndicatorOptions) ui.Element
| 字段 | 类型 | 默认值 | 含义 |
|---|---|---|---|
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。 |
Day |
Date |
零值（今天） | 父元素自上而下代表的日期；不是今天时不显示。 |
Now |
time.Time |
零值（系统时钟） | 当前时间；固定后不再定时刷新，便于测试。 |
Hour12 |
bool |
false | 12 小时制显示时间。 |
状态
显示（Danger 色线与菱形）、不在当天时隐藏。
事件
无事件；读屏通过标签读出当前时间。
键盘操作
- 不可聚焦。
限制
- 仅在被构建（可见）时用
c.After预约下一分钟的重绘；隐藏后不再预约，自动停止。