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>
43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
# 268 AgentProgress Agent 进度
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## 用途
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显示整体进度和当前动作文字;时长未知时用不确定模式。
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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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agent.AgentProgress(c, 0.4, agent.AgentProgressOptions{Action: "Reading ledger.md"})
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}
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ui.Render(view, 400, 300, 1)
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```
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签名:`func AgentProgress(c *ui.Context, value float64, opts AgentProgressOptions) ui.Element`。确定模式下 `value` 不在 0 到 1 时 panic。
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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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| `Label` | `string` | “进度” | 进度名称。 |
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| `Action` | `string` | `""` | 当前动作,如“正在读取 ledger.md”。 |
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| `Indeterminate` | `bool` | `false` | 不确定模式,忽略 value。 |
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| `Still` | `bool` | `false` | 停止执行中动画;系统减少动画时也自动静止。 |
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## 状态
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- 确定模式显示百分比;不确定模式显示流动条,减少动画时为静态条加“进行中”。
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## 事件
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- 无事件;当前动作以状态角色读出。
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## 键盘操作
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- 不获取焦点。
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## 限制
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- 进度值由调用方计算。
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