81 lines
1.7 KiB
Go
81 lines
1.7 KiB
Go
package x
|
|
|
|
import "git.tebibyte.media/tomo/tomo"
|
|
import "git.tebibyte.media/tomo/xgbkb"
|
|
|
|
import "github.com/jezek/xgbutil"
|
|
import "github.com/jezek/xgb/xproto"
|
|
import "github.com/jezek/xgbutil/xevent"
|
|
import "github.com/jezek/xgbutil/keybind"
|
|
import "github.com/jezek/xgbutil/mousebind"
|
|
|
|
type Backend struct {
|
|
x *xgbutil.XUtil
|
|
doChannel chan func()
|
|
windows map[xproto.Window] *window
|
|
open bool
|
|
}
|
|
|
|
func NewBackend () (tomo.Backend, error) {
|
|
backend := &Backend {
|
|
doChannel: make(chan func (), 32),
|
|
windows: make(map[xproto.Window] *window),
|
|
open: true,
|
|
}
|
|
|
|
var err error
|
|
backend.x, err = xgbutil.NewConn()
|
|
if err != nil { return nil, err }
|
|
|
|
keybind .Initialize(backend.x)
|
|
xgbkb .Initialize(backend.x)
|
|
mousebind.Initialize(backend.x)
|
|
|
|
return backend, nil
|
|
}
|
|
|
|
func (backend *Backend) Run () error {
|
|
backend.assert()
|
|
pingBefore,
|
|
pingAfter,
|
|
pingQuit := xevent.MainPing(backend.x)
|
|
for {
|
|
select {
|
|
case <- pingBefore:
|
|
<- pingAfter
|
|
case callback := <- backend.doChannel:
|
|
callback()
|
|
case <- pingQuit:
|
|
return nil // FIXME: if we exited due to an error say so
|
|
}
|
|
for _, window := range backend.windows {
|
|
window.afterEvent()
|
|
}
|
|
}
|
|
}
|
|
|
|
func (backend *Backend) Stop () {
|
|
backend.assert()
|
|
if !backend.open { return }
|
|
backend.open = false
|
|
|
|
toClose := []*window { }
|
|
for _, panel := range backend.windows {
|
|
toClose = append(toClose, panel)
|
|
}
|
|
for _, panel := range toClose {
|
|
panel.Close()
|
|
}
|
|
xevent.Quit(backend.x)
|
|
backend.x.Conn().Close()
|
|
}
|
|
|
|
func (backend *Backend) Do (callback func ()) {
|
|
backend.assert()
|
|
backend.doChannel <- callback
|
|
}
|
|
|
|
func (backend *Backend) assert () {
|
|
if backend == nil { panic("nil backend") }
|
|
}
|