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>
52 lines
1.3 KiB
Markdown
52 lines
1.3 KiB
Markdown
# 356 ScreenRecorderControls 录屏控制
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## 用途
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开始、暂停、继续、停止录制并显示计时；录制本身由调用方实现。
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## 最小示例
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```go
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st := media.RecorderState{}
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view := func(c *ui.Context) {
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core.Use(c, core.Settings{})
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media.ScreenRecorderControls(c, st, media.ScreenRecorderControlsOptions{
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OnStart: func() { st.Status = media.RecorderRecording },
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OnPause: func() { st.Status = media.RecorderPaused },
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OnResume: func() { st.Status = media.RecorderRecording },
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OnStop: func() { st = media.RecorderState{} },
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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 ScreenRecorderControls(c *ui.Context, st RecorderState, opts ScreenRecorderControlsOptions) ui.Element`
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`RecorderState`：`Status`（`RecorderIdle`、`RecorderRecording`、`RecorderPaused`）、`Elapsed`。
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| 字段 | 类型 | 默认值 | 含义 |
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| --- | --- | --- | --- |
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| `OnStart / OnPause / OnResume / OnStop` | `func()` | 必填 | 缺少任一回调时 panic。 |
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| `Disabled` | `bool` | false | 禁用。 |
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## 状态
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就绪、录制中（红点）、已暂停；状态同时用文字表示，不只靠圆点颜色。录制中的圆点不闪烁。
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## 事件
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全部通过回调报告。
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## 键盘操作
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| 按键 | 作用 |
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| --- | --- |
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| Tab | 在按钮间移动 |
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| Enter / Space | 按下 |
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## 限制
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- 计时由调用方更新 `Elapsed`。
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