Files
MujicaUI/audio_player.go
T

85 lines
2.4 KiB
Go

package mujica
import (
"log/slog"
"time"
"github.com/egoist/mygo/ui"
"mujicaui/theme"
)
// AudioState is what the caller's playback reports.
type AudioState struct {
Title string
Position time.Duration
Duration time.Duration
Playing bool
}
// AudioPlayerOptions are the callbacks a player shell reports to.
type AudioPlayerOptions struct {
OnPlay, OnPause func()
OnSeek func(time.Duration)
Disabled bool
}
// AudioPlayer is a play, pause and seek shell.
func AudioPlayer(c *ui.Context, st AudioState, opts AudioPlayerOptions) *ui.Element {
if opts.OnPlay == nil || opts.OnPause == nil || opts.OnSeek == nil {
panic("mujica: AudioPlayer needs OnPlay, OnPause and OnSeek")
}
k := Tokens(c)
u := Density(c).Unit()
row := ui.Row(c).Gap(u*3).AlignItems(ui.Center).MinHeight(Density(c).ControlHeight()).Padding(u*2, u*3).
Radius(theme.CardRadius).Background(k.Surface).Border(theme.BorderWidth, k.Border).Role(ui.RoleGroup).
Disabled(opts.Disabled)
if st.Title != "" {
row.Label(st.Title)
}
row.Children(func() {
mediaPlayToggle(c, st.Playing, opts.OnPlay, opts.OnPause)
ui.Column(c).Grow(1).MinWidth(0).Gap(2).Children(func() {
if st.Title != "" {
ui.Text(c, st.Title).SingleLine()
}
if st.Duration > 0 {
pos := min(max(0, st.Position), st.Duration)
if VideoScrubber(c, &pos, VideoScrubberOptions{Duration: st.Duration, Label: st.Title}).Changed() {
opts.OnSeek(pos)
}
}
})
ui.Text(c, mediaClock(st.Position)+" / "+mediaClock(st.Duration)).FontSize(FontSize(c, theme.CaptionSize)).
TextColor(k.TextMuted).FontFeatures("tnum").SingleLine()
})
// Space plays or pauses wherever the focus is inside.
if !row.IsDisabled() && row.Shortcut(0, ui.KeySpace) {
mediaToggle(st.Playing, opts.OnPlay, opts.OnPause)
}
return row
}
// mediaPlayToggle is the play/pause button; it calls the matching callback.
func mediaPlayToggle(c *ui.Context, playing bool, onPlay, onPause func()) *ui.Element {
icon, label := mediaPlay, msg(c, "media_controls.play")
if playing {
icon, label = mediaPause, msg(c, "media_controls.pause")
}
b := IconButton(c, icon, label, IconButtonOptions{})
if b.Clicked() && !b.IsDisabled() {
mediaToggle(playing, onPlay, onPause)
}
return b
}
func mediaToggle(playing bool, onPlay, onPause func()) {
if playing {
slog.Debug("mujica: media pause")
onPause()
return
}
slog.Debug("mujica: media play")
onPlay()
}