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>
46 lines
1.3 KiB
Markdown
46 lines
1.3 KiB
Markdown
# 095 Skeleton 骨架屏
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## 用途
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内容加载前占位，形状为文字行、圆形或矩形。尺寸固定，加载完成后替换为真实内容时不跳动。
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## 最小示例
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```go
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ui.Row(c).Padding(16).Gap(12).Children(func() {
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feedback.Skeleton(c, feedback.SkeletonOptions{Shape: feedback.SkeletonCircle})
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ui.Column(c).Grow(1).Children(func() {
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feedback.Skeleton(c, feedback.SkeletonOptions{Lines: 2})
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})
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})
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```
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签名：`func Skeleton(c *ui.Context, opts SkeletonOptions) ui.Element`
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## 参数
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| 字段 | 类型 | 默认值 | 含义 |
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| --- | --- | --- | --- |
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| `Shape` | `SkeletonShape` | `SkeletonText` | `SkeletonText`、`SkeletonCircle`、`SkeletonRect`。 |
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| `Width` | `float32` | 填满父级；圆形 40 | 宽度；圆形为直径。 |
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| `Height` | `float32` | 当前密度控件高度 | 矩形高度；文字形状由行数决定（每行 21 DIP）。 |
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| `Lines` | `int` | 1 | 文字行数，多行时最后一行为 60% 宽。 |
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负值、NaN、无穷或未知形状 panic。文字行高随系统文本缩放。
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## 状态
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明暗缓慢脉动（1.6 秒周期），只重绘不重建视图；减少动画模式使用静态填充。
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## 事件
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无。
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## 键盘操作
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不可聚焦，不进入无障碍树。
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## 限制
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- 骨架本身不向读屏报告加载；请在容器上配合 Spinner 或 LoadingOverlay 的说明文字。
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