2018-08-27 22:53:10 +03:00
|
|
|
package screen
|
|
|
|
|
|
|
|
import (
|
|
|
|
"fmt"
|
|
|
|
"os"
|
2018-08-28 21:24:59 +03:00
|
|
|
"sync"
|
2018-08-27 22:53:10 +03:00
|
|
|
|
2019-02-04 07:17:24 +03:00
|
|
|
"github.com/zyedidia/micro/internal/config"
|
2020-01-01 04:15:45 +03:00
|
|
|
"github.com/zyedidia/tcell"
|
2018-08-27 22:53:10 +03:00
|
|
|
)
|
|
|
|
|
2018-12-31 22:46:04 +03:00
|
|
|
// Screen is the tcell screen we use to draw to the terminal
|
|
|
|
// Synchronization is used because we poll the screen on a separate
|
|
|
|
// thread and sometimes the screen is shut down by the main thread
|
|
|
|
// (for example on TermMessage) so we don't want to poll a nil/shutdown
|
|
|
|
// screen. TODO: maybe we should worry about polling and drawing at the
|
|
|
|
// same time too.
|
2018-08-27 22:53:10 +03:00
|
|
|
var Screen tcell.Screen
|
2018-08-28 21:24:59 +03:00
|
|
|
var lock sync.Mutex
|
2019-01-11 00:37:05 +03:00
|
|
|
var DrawChan chan bool
|
2018-08-28 21:24:59 +03:00
|
|
|
|
|
|
|
func Lock() {
|
|
|
|
lock.Lock()
|
|
|
|
}
|
|
|
|
|
|
|
|
func Unlock() {
|
|
|
|
lock.Unlock()
|
|
|
|
}
|
|
|
|
|
2019-01-11 00:37:05 +03:00
|
|
|
func Redraw() {
|
|
|
|
DrawChan <- true
|
|
|
|
}
|
2018-08-28 21:24:59 +03:00
|
|
|
|
2018-12-31 22:46:04 +03:00
|
|
|
// TempFini shuts the screen down temporarily
|
2019-01-11 00:37:05 +03:00
|
|
|
func TempFini() bool {
|
|
|
|
screenWasNil := Screen == nil
|
2018-08-28 21:24:59 +03:00
|
|
|
|
|
|
|
if !screenWasNil {
|
|
|
|
Screen.Fini()
|
2019-01-11 00:37:05 +03:00
|
|
|
Lock()
|
2018-08-28 21:24:59 +03:00
|
|
|
Screen = nil
|
|
|
|
}
|
2019-01-11 00:37:05 +03:00
|
|
|
return screenWasNil
|
2018-08-28 21:24:59 +03:00
|
|
|
}
|
|
|
|
|
2018-12-31 22:46:04 +03:00
|
|
|
// TempStart restarts the screen after it was temporarily disabled
|
2019-01-11 00:37:05 +03:00
|
|
|
func TempStart(screenWasNil bool) {
|
2018-08-28 21:24:59 +03:00
|
|
|
if !screenWasNil {
|
|
|
|
Init()
|
|
|
|
Unlock()
|
|
|
|
}
|
|
|
|
}
|
2018-08-27 22:53:10 +03:00
|
|
|
|
|
|
|
// Init creates and initializes the tcell screen
|
|
|
|
func Init() {
|
2019-01-15 03:57:19 +03:00
|
|
|
DrawChan = make(chan bool, 8)
|
2019-01-11 00:37:05 +03:00
|
|
|
|
2018-08-27 22:53:10 +03:00
|
|
|
// Should we enable true color?
|
|
|
|
truecolor := os.Getenv("MICRO_TRUECOLOR") == "1"
|
|
|
|
|
2020-01-01 07:09:33 +03:00
|
|
|
if !truecolor {
|
|
|
|
os.Setenv("TCELL_TRUECOLOR", "disable")
|
2018-08-27 22:53:10 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
// Initilize tcell
|
|
|
|
var err error
|
|
|
|
Screen, err = tcell.NewScreen()
|
|
|
|
if err != nil {
|
2020-01-01 07:09:33 +03:00
|
|
|
fmt.Println(err)
|
|
|
|
fmt.Println("Fatal: Micro could not initialize a Screen.")
|
|
|
|
os.Exit(1)
|
2018-08-27 22:53:10 +03:00
|
|
|
}
|
|
|
|
if err = Screen.Init(); err != nil {
|
|
|
|
fmt.Println(err)
|
|
|
|
os.Exit(1)
|
|
|
|
}
|
|
|
|
|
|
|
|
if config.GetGlobalOption("mouse").(bool) {
|
|
|
|
Screen.EnableMouse()
|
|
|
|
}
|
|
|
|
}
|