97 lines
2.6 KiB
Go
97 lines
2.6 KiB
Go
package main
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import (
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"context"
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"fmt"
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"io"
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wailsruntime "github.com/wailsapp/wails/v2/pkg/runtime"
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"gitea.neitzel.de/konrad/funknetz/audio"
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"gitea.neitzel.de/konrad/funknetz/station"
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)
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// App is the window's view of the station.
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type App struct {
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ctx context.Context
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cancel context.CancelFunc
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station *station.Station
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quit func(context.Context)
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}
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func (a *App) startup(ctx context.Context) {
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a.ctx = ctx
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runCtx, cancel := context.WithCancel(ctx)
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a.cancel = cancel
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if err := audio.Start(runCtx, a.station.WriteMicrophone, a.station.TakePlayback); err != nil {
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a.station.Fail("could not open the audio device")
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return
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}
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go func() { _ = a.station.Run(runCtx) }() // Run returns when the window closes.
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}
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func (a *App) shutdown(context.Context) {
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if a.cancel != nil {
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a.cancel()
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}
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}
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// State returns the station state the page renders.
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func (a *App) State() station.State { return a.station.State() }
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// HoldButton reports that the on-screen button is held.
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func (a *App) HoldButton() { a.station.HoldButton() }
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// ReleaseButton reports that the on-screen button was released.
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func (a *App) ReleaseButton() { a.station.ReleaseButton() }
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// HoldSpace reports that Space is held.
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func (a *App) HoldSpace() { a.station.HoldSpace() }
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// ReleaseSpace reports that Space was released.
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func (a *App) ReleaseSpace() { a.station.ReleaseSpace() }
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// Config returns the Config window form.
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func (a *App) Config() station.ConfigState { return a.station.Config() }
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// OpenConfig opens the Config window, re-reading the file.
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func (a *App) OpenConfig() { a.station.OpenConfig() }
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// Save validates and writes the config form.
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func (a *App) Save(form station.ConfigForm) error { return a.station.Save(form) }
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// CancelConfig discards the form. When no config has loaded, it quits.
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func (a *App) CancelConfig() {
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if !a.station.Cancel() {
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return
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}
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quit := a.quit
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if quit == nil {
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quit = wailsruntime.Quit
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}
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if a.ctx != nil {
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quit(a.ctx)
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}
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}
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func openStation(args []string) (*station.Station, error) {
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path, err := resolveConfigPath(args)
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if err != nil {
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return nil, err
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}
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return station.New(station.Options{ConfigPath: path})
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}
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// openStationReported opens the station from args. A flag or path failure is
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// one line on stderr and the returned error. A missing or invalid config still
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// returns a station so the window can open.
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func openStationReported(args []string, stderr io.Writer) (*station.Station, error) {
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st, err := openStation(args)
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if err != nil {
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// The returned error is the failure. A write error does not replace it.
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_, _ = fmt.Fprintln(stderr, err.Error())
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return nil, err
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}
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return st, nil
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}
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