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>
1.2 KiB
1.2 KiB
205 StreamingText 流式文本
用途
显示随流式输出不断增长的文本。可平滑出字（按速率逐字显示），可显示流式光标；减少动画时直接显示全部文本。文本被替换为不以旧文本开头的内容时，从共同前缀继续。
最小示例
chat.StreamingText(c, reply, chat.StreamingTextOptions{Streaming: true, Smooth: true})
签名：func StreamingText(c *ui.Context, text string, opts StreamingTextOptions) ui.Element
参数
| 字段 | 类型 | 默认值 | 含义 |
|---|---|---|---|
text |
string |
必填 | 当前收到的全部文本。 |
Streaming |
bool |
false | 在文本末尾显示 AccentText 色的静态光标 ▍。 |
Smooth |
bool |
false | 新到的文本按 Rate 逐字显示；关闭时立即显示。 |
Rate |
float64 |
80 | 平滑出字速度，字符/秒；负数 panic。 |
状态
出字中 / 完成；减少动画时始终为完成。光标不闪烁，避免装饰性循环。
事件
无。
键盘操作
不获取焦点。辅助技术读到的名称始终是完整文本。
限制
- 只渲染纯文本；Markdown 内容请交给 MarkdownView（206），它的增量解析同样适合流式输出。