64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
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package clui
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import (
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term "github.com/nsf/termbox-go"
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)
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// Composer is a service object that manages Views and console, processes
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// events, and provides service methods. One application must have only
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// one object of this type
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type mainLoop struct {
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// a channel to communicate with View(e.g, Views send redraw event to this channel)
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channel chan Event
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}
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var (
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loop *mainLoop
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)
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func initMainLoop() {
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loop = new(mainLoop)
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loop.channel = make(chan Event)
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}
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// MainLoop starts the main application event loop
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func MainLoop() {
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RefreshScreen()
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eventQueue := make(chan term.Event)
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go func() {
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for {
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eventQueue <- term.PollEvent()
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}
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}()
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for {
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RefreshScreen()
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select {
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case ev := <-eventQueue:
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switch ev.Type {
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case term.EventError:
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panic(ev.Err)
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default:
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ProcessEvent(termboxEventToLocal(ev))
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}
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case cmd := <-loop.channel:
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if cmd.Type == EventQuit {
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return
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}
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ProcessEvent(cmd)
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}
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}
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}
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func _putEvent(ev Event) {
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loop.channel <- ev
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}
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// PutEvent send event to a Composer directly.
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// Used by Views to ask for repainting or for quitting the application
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func PutEvent(ev Event) {
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go _putEvent(ev)
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}
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