125 lines
3.5 KiB
Go
125 lines
3.5 KiB
Go
package mujica
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import (
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"fmt"
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"log/slog"
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"github.com/egoist/mygo/ui"
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"mujicaui/icons"
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"mujicaui/theme"
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)
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// Severity is the meaning of a message. The zero value is SeverityInfo.
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type Severity int
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const (
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SeverityInfo Severity = iota
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SeveritySuccess
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SeverityWarning
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SeverityError
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)
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func (s Severity) String() string {
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switch s {
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case SeverityInfo:
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return "info"
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case SeveritySuccess:
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return "success"
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case SeverityWarning:
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return "warning"
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case SeverityError:
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return "error"
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}
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panic(fmt.Sprintf("mujica: unknown Severity %d", int(s)))
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}
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// severityLook returns the color and icon that, with text, mark s.
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func severityLook(k theme.Tokens, s Severity) (ui.Color, *ui.SVG) {
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switch s {
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case SeveritySuccess:
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return k.Success, icons.Must("circle-check")
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case SeverityWarning:
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return k.Warning, icons.Must("triangle-alert")
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case SeverityError:
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return k.Danger, icons.Must("circle-x")
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case SeverityInfo:
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return k.Info, icons.Must("info")
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}
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panic(fmt.Sprintf("mujica: unknown Severity %d", int(s)))
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}
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// AlertOptions configure an Alert.
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type AlertOptions struct {
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Severity Severity
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// Title goes above the message in bold; empty shows none.
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Title string
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// Action labels a button at the end; empty shows none.
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Action string
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}
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// AlertResult is what an Alert built and reported this frame.
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type AlertResult struct {
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// Element is nil while the alert is closed.
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Element *ui.Element
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// Action reports a click on the action button.
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Action bool
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// Closed reports the user dismissing the alert.
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Closed bool
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}
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// Alert shows an inline message; a non-nil open adds a dismiss button that clears it.
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func Alert(c *ui.Context, open *bool, message string, opts AlertOptions) AlertResult {
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if message == "" {
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panic("mujica: Alert needs a message")
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}
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if open != nil && !*open {
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return AlertResult{}
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}
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k := Tokens(c)
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u := Density(c).Unit()
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tone, icon := severityLook(k, opts.Severity)
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name := msg(c, "alert."+opts.Severity.String())
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var res AlertResult
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box := ui.Row(c).FillWidth().AlignItems(ui.Start).Gap(u*3).Padding(u*3, u*3, u*3, u*4).
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Radius(theme.CardRadius).Background(k.Surface).Border(theme.BorderWidth, k.Border).
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Role(ui.RoleGroup).Label(name).Clip()
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// A bar in the severity color along the leading edge.
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box.Draw(func(p *ui.Painter, r ui.Rect) {
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p.Fill(ui.Rect{X: r.X, Y: r.Y, W: 3, H: r.H}, tone, 0)
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})
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// Warnings and errors are read out when they appear or change.
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said := ui.Local(box, "alert.said", func() string { return "" })
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if news := name + ": " + message; opts.Severity >= SeverityWarning && *said != news {
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*said = news
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c.Announce(news)
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}
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box.Children(func() {
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ui.Icon(c, icon).Size(20, 20).TextColor(tone).Margin(1, 0, 0, 0)
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ui.Column(c).Grow(1).Shrink(1).Gap(u).Children(func() {
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if opts.Title != "" {
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ui.Text(c, opts.Title).Bold().TextColor(k.Text)
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}
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ui.Text(c, message).TextColor(k.Text).LineHeight(theme.LineHeight)
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if opts.Action != "" {
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ui.Row(c).Margin(u, 0, 0, 0).Children(func() {
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if Button(c, opts.Action, ButtonOptions{Variant: Outline}).Clicked() {
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slog.Debug("mujica: alert action", "severity", opts.Severity, "action", opts.Action)
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res.Action = true
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}
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})
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}
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})
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if open != nil {
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dismiss := Button(c, "", ButtonOptions{Variant: Ghost, Icon: icons.Must("x"), Label: msg(c, "alert.close")})
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dismiss.TextColor(k.TextMuted).Padding(0).MinHeight(theme.MinHitSize).Margin(-u, -u, -u, 0)
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if dismiss.Clicked() {
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slog.Debug("mujica: alert closed", "severity", opts.Severity)
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*open, res.Closed = false, true
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}
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}
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})
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res.Element = box
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return res
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}
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