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>
1.1 KiB
1.1 KiB
297 ReorderTransition 重排过渡
用途
按稳定键排列子项，顺序变化时子项平滑移动到新位置；新增淡入，移除淡出。
最小示例
order := []string{"Sakiko", "Uika", "Mutsumi"}
view := func(c *ui.Context) {
core.Use(c, core.Settings{})
feedback.ReorderTransition(c, order, feedback.ReorderTransitionOptions{Gap: 4}, func(name string) {
ui.Text(c, name)
})
}
ui.Render(view, 400, 300, 1)
签名：func ReorderTransition[K comparable](c *ui.Context, keys []K, opts ReorderTransitionOptions, item func(key K)) ui.Element
参数
ReorderTransitionOptions
| 字段 | 类型 | 默认值 | 含义 |
|---|---|---|---|
| Duration | time.Duration | 0（即 120 ms） | 移动时长；为负 panic。 |
| Gap | float32 | 0 | 子项间距。 |
键重复时 panic。基于 MyGo Transition 的 Position、Enter 与 Exit。
状态
- 减少动画：直接到位。动画结束后停止重绘。
事件
- 无。
键盘操作
- 焦点随键跟随子项移动。
限制
- 只做纵向列；虚拟化列表（List）的行不支持此过渡（MyGo 文档 transitions.md）。