84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package input
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import (
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"log/slog"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type EditableTextOptions struct {
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Placeholder string
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// Width is in dots; zero means 120.
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Width int
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Disabled bool
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}
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type EditableTextResult struct {
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Element *ui.Element
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Changed bool
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}
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type editableKey struct{}
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type editable struct {
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on, refocus bool
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draft string
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}
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// EditableText edits on double click or Enter; Escape reverts.
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func EditableText(c *ui.Context, text string, value *string, o EditableTextOptions) EditableTextResult {
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k := pixel.K(c)
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w := orDef("EditableText Width", o.Width, 120)
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box := ui.Box(c)
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s := ui.Local(box, editableKey{}, func() editable { return editable{} })
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res := EditableTextResult{Element: box}
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if o.Disabled {
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s.on = false
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}
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box.Children(func() {
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if s.on {
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ed, e := field(c, &s.draft, pixel.EditorOptions{Label: text, Placeholder: o.Placeholder}, w, nil, nil, nil)
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ed.Input.AutoFocus()
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enter, escape := e.Shortcut(0, ui.KeyEnter), e.Shortcut(0, ui.KeyEscape)
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if enter {
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res.Changed = *value != s.draft
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*value = s.draft
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}
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if enter || escape {
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s.on, s.refocus = false, true
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}
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return
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}
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shell, base, st := pixel.Shell(c, func() *ui.Element {
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return ui.Box(c).Focusable().Role(ui.RoleButton).Label(text).Description(*value).Disabled(o.Disabled)
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})
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if s.refocus {
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base.Focus()
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s.refocus = false
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}
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enter, double := base.Shortcut(0, ui.KeyEnter), base.DoubleClicked()
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if enter || double {
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s.on, s.draft = true, *value
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}
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shell.Size(k.D(w), k.D(pixel.LineHeight+6)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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if st.Hover {
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g.Rect(0, 0, g.W, g.H, pixel.Lit)
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}
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shown, ink := *value, pixel.Ink
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if shown == "" {
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shown, ink = o.Placeholder, pixel.Faint
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}
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g.Text(4, 3, shown, ink, 1)
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g.Veil(0, g.H-1, g.W, 1, pixel.Faint, 8)
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finish(g, st)
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})
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})
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if res.Changed {
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slog.Debug("8bit: text edited", "label", text, "value", *value)
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}
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return res
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}
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