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>
1.6 KiB
1.6 KiB
078 Statistic · 统计数值
用途
突出显示一个数值，附带标题、单位、前后缀、精度与变化值说明。组件只格式化调用方给出的数值，不计算业务指标。
最小示例
change := 12.5
view := func(c *ui.Context) {
core.Use(c, core.Settings{})
data.Statistic(c, 12840, data.StatisticOptions{
Title: "Pilgrims", Unit: "souls", Precision: 0,
Change: &change, ChangeUnit: "%", ChangeNote: "vs last feast",
})
}
ui.Render(view, 400, 300, 1)
参数
func Statistic(c *ui.Context, value float64, opts StatisticOptions) ui.Element。
| 字段 | 类型 | 默认值 | 含义 |
|---|---|---|---|
Title |
string |
空 | 数值上方的标题。 |
Precision |
int |
0 | 小数位数；负数 panic。 |
Prefix, Suffix |
string |
空 | 紧贴数字的前后缀，如 £、k。 |
Unit |
string |
空 | 数字后的较小单位文字。 |
Format |
func(float64) string |
千分位分组 | 自定义数字格式。 |
Change |
*float64 |
nil | 变化值：正数显示上箭头与 Success 色，负数下箭头与 Danger 色，零为持平；同时带正负号。 |
ChangeUnit |
string |
空 | 变化值单位，如 %。 |
ChangeNote |
string |
空 | 变化值说明，如“较上次”。 |
状态
仅展示：上升、下降、持平（图标、符号与颜色共同表示）。
事件
无。
键盘操作
不获取焦点；分组名称把标题、数值、单位与变化一起读出。
限制
- 默认格式使用逗号分组与点号小数；其他地区格式通过
Format提供。