func main() {
runtime.GOMAXPROCS(64)
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
keybind.Initialize(X)
font := loadFont("/usr/share/fonts/truetype/freefont/FreeMono.ttf")
font.Color = xgraphics.BGRA{B: 0x00, G: 0xff, R: 0x00, A: 0xff}
font.Size = 12.0
ximage := xgraphics.New(X, image.Rect(0, 0, 300, 300))
ximage.CreatePixmap()
window, obscured := makeWindow(ximage)
battery := batteryItem(font, 10, ximage, window)
cpu := cpuItem(font, 30, ximage, window)
memory := memoryItem(font, 50, ximage, window)
before, after, quit := xevent.MainPing(X)
loop:
for {
select {
case <-before:
<-after
case <-quit:
break loop
case text := <-battery.Text:
if *obscured {
continue loop
}
battery.update(text)
case text := <-cpu.Text:
if *obscured {
continue loop
}
cpu.update(text)
case text := <-memory.Text:
if *obscured {
continue loop
}
memory.update(text)
}
}
}
func main() {
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
// Start generating other source events.
otherChan := otherSource()
// Start generating X events (by sending client messages to root window).
go xSource(X)
// Listen to those X events.
xwindow.New(X, X.RootWin()).Listen(xproto.EventMaskSubstructureNotify)
// Respond to those X events.
xevent.ClientMessageFun(
func(X *xgbutil.XUtil, ev xevent.ClientMessageEvent) {
atmName, err := xprop.AtomName(X, ev.Type)
if err != nil {
log.Fatal(err)
}
fmt.Printf("ClientMessage: %d. %s\n", ev.Data.Data32[0], atmName)
}).Connect(X, X.RootWin())
// Instead of using the usual xevent.Main, we use xevent.MainPing.
// It runs the main event loop inside a goroutine and returns ping
// channels, which are sent benign values right before an event is
// dequeued and right after that event has finished running all callbacks
// associated with it, respectively.
pingBefore, pingAfter, pingQuit := xevent.MainPing(X)
for {
select {
case <-pingBefore:
// Wait for the event to finish processing.
<-pingAfter
case otherVal := <-otherChan:
fmt.Printf("Processing other event: %d\n", otherVal)
case <-pingQuit:
fmt.Printf("xevent loop has quit")
return
}
}
}
func main() {
if flagWriteConfig {
writeConfigFiles()
os.Exit(0)
}
X, err := xgbutil.NewConn()
if err != nil {
logger.Error.Println(err)
logger.Error.Fatalln("Error connecting to X, quitting...")
}
defer X.Conn().Close()
// Do this first! Attempt to retrieve window manager ownership.
// This includes waiting for any existing window manager to die.
// 'own' also sets up handlers for quitting when a window manager tries
// to replace *us*.
if err := own(X, flagReplace); err != nil {
logger.Error.Fatalf(
"Could not establish window manager ownership: %s", err)
}
if len(flagConfigDir) > 0 {
misc.ConfigPaths.Override = flagConfigDir
}
if len(flagDataDir) > 0 {
misc.DataPaths.Override = flagDataDir
}
misc.ReadData()
keybind.Initialize(X)
mousebind.Initialize(X)
focus.Initialize(X)
stack.Initialize(X)
cursors.Initialize(X)
wm.Initialize(X, commands.Env, newHacks())
hook.Initialize(commands.Env, misc.ConfigFile("hooks.wini"))
// Listen to Root. It is all-important.
err = xwindow.New(X, X.RootWin()).Listen(
xproto.EventMaskPropertyChange |
xproto.EventMaskFocusChange |
xproto.EventMaskButtonPress |
xproto.EventMaskButtonRelease |
xproto.EventMaskStructureNotify |
xproto.EventMaskSubstructureNotify |
xproto.EventMaskSubstructureRedirect)
if err != nil {
logger.Error.Fatalf("Could not listen to Root window events: %s", err)
}
// Update state when the root window changes size
wm.RootGeomChangeFun().Connect(X, wm.Root.Id)
// Oblige map request events
xevent.MapRequestFun(
func(X *xgbutil.XUtil, ev xevent.MapRequestEvent) {
xclient.New(ev.Window)
}).Connect(X, wm.Root.Id)
// Oblige configure requests from windows we don't manage.
xevent.ConfigureRequestFun(
func(X *xgbutil.XUtil, ev xevent.ConfigureRequestEvent) {
// Make sure we aren't managing this client.
if wm.FindManagedClient(ev.Window) != nil {
return
}
xwindow.New(X, ev.Window).Configure(int(ev.ValueMask),
int(ev.X), int(ev.Y), int(ev.Width), int(ev.Height),
ev.Sibling, ev.StackMode)
}).Connect(X, wm.Root.Id)
xevent.FocusInFun(
func(X *xgbutil.XUtil, ev xevent.FocusInEvent) {
if ignoreRootFocus(ev.Mode, ev.Detail) {
return
}
if len(wm.Workspace().Clients) == 0 {
return
}
wm.FocusFallback()
}).Connect(X, wm.Root.Id)
// Listen to Root client message events. This is how we handle all
// of the EWMH bullshit.
xevent.ClientMessageFun(handleClientMessages).Connect(X, wm.Root.Id)
// Tell everyone what we support.
setSupported()
// Start up the IPC command listener.
go ipc()
// Just before starting the main event loop, check to see if there are
// any clients that already exist that we should manage.
manageExistingClients()
// Now make sure that clients are in the appropriate visible state.
for _, wrk := range wm.Heads.Workspaces.Wrks {
if wrk.IsVisible() {
wrk.Show()
} else {
wrk.Hide()
}
}
wm.Heads.ApplyStruts(wm.Clients)
wm.FocusFallback()
wm.Startup = false
pingBefore, pingAfter, pingQuit := xevent.MainPing(X)
if len(flagCpuProfile) > 0 {
f, err := os.Create(flagCpuProfile)
if err != nil {
logger.Error.Fatalf("%s\n", err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if flagWingoRestarted {
hook.Fire(hook.Restarted, hook.Args{})
} else {
hook.Fire(hook.Startup, hook.Args{})
}
EVENTLOOP:
for {
select {
case <-pingBefore:
// Wait for the event to finish processing.
<-pingAfter
case f := <-commands.SafeExec:
commands.SafeReturn <- f()
case <-pingQuit:
break EVENTLOOP
}
}
if wm.Restart {
// We need to tell the next invocation of Wingo that it is being
// *restarted*. (So that we don't refire the startup hook.)
// Thus, search os.Args for "--wingo-restarted". If it doesn't exist,
// add it.
found := false
for _, arg := range os.Args {
if strings.ToLower(strings.TrimSpace(arg)) == "--wingo-restarted" {
found = true
}
}
if !found {
os.Args = append(os.Args, "--wingo-restarted")
}
logger.Message.Println("The user has told us to restart...\n\n\n")
if err := syscall.Exec(os.Args[0], os.Args, os.Environ()); err != nil {
logger.Error.Fatalf("Could not exec '%s': %s",
strings.Join(os.Args, " "), err)
}
}
}
func main() {
if flagWriteConfig {
writeConfigFiles()
os.Exit(0)
}
X, err := xgbutil.NewConn()
if err != nil {
logger.Error.Println(err)
logger.Error.Fatalln("Error connecting to X, quitting...")
}
defer X.Conn().Close()
if flagShowSocket {
showSocketPath(X)
return
}
// Do this first! Attempt to retrieve window manager ownership.
// This includes waiting for any existing window manager to die.
// 'own' also sets up handlers for quitting when a window manager tries
// to replace *us*.
if err := own(X, flagReplace); err != nil {
logger.Error.Fatalf(
"Could not establish window manager ownership: %s", err)
}
if len(flagConfigDir) > 0 {
misc.ConfigPaths.Override = flagConfigDir
}
if len(flagDataDir) > 0 {
misc.DataPaths.Override = flagDataDir
}
misc.ReadData()
keybind.Initialize(X)
mousebind.Initialize(X)
focus.Initialize(X)
stack.Initialize(X)
cursors.Initialize(X)
wm.Initialize(X, commands.Env, newHacks())
hook.Initialize(commands.Env, misc.ConfigFile("hooks.wini"))
// Initialize event handlers on the root window.
rootInit(X)
// Tell everyone what we support.
setSupported()
// Start up the IPC command listener.
go ipc(X)
// And start up the IPC event notifier.
go event.Notifier(X, socketFilePath(X))
// Just before starting the main event loop, check to see if there are
// any clients that already exist that we should manage.
manageExistingClients()
// Now make sure that clients are in the appropriate visible state.
for _, wrk := range wm.Heads.Workspaces.Wrks {
if wrk.IsVisible() {
wrk.Show()
} else {
wrk.Hide()
}
}
wm.Heads.ApplyStruts(wm.Clients)
wm.FocusFallback()
wm.Startup = false
pingBefore, pingAfter, pingQuit := xevent.MainPing(X)
if len(flagCpuProfile) > 0 {
f, err := os.Create(flagCpuProfile)
if err != nil {
logger.Error.Fatalf("%s\n", err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if flagWingoRestarted {
hook.Fire(hook.Restarted, hook.Args{})
} else {
hook.Fire(hook.Startup, hook.Args{})
}
EVENTLOOP:
for {
select {
case <-pingBefore:
// Wait for the event to finish processing.
<-pingAfter
case f := <-commands.SafeExec:
commands.SafeReturn <- f()
case <-pingQuit:
break EVENTLOOP
}
}
if wm.Restart {
event.Notify(event.Restarting{})
for _, client := range wm.Clients {
c := client.(*xclient.Client)
if _, ok := c.Frame().(*frame.Full); ok {
c.FrameNada()
}
}
time.Sleep(1 * time.Second)
// We need to tell the next invocation of Wingo that it is being
// *restarted*. (So that we don't refire the startup hook.)
// Thus, search os.Args for "--wingo-restarted". If it doesn't exist,
// add it.
found := false
for _, arg := range os.Args {
if strings.ToLower(strings.TrimSpace(arg)) == "--wingo-restarted" {
found = true
}
}
if !found {
os.Args = append(os.Args, "--wingo-restarted")
}
logger.Message.Println("The user has told us to restart...\n\n\n")
if err := syscall.Exec(os.Args[0], os.Args, os.Environ()); err != nil {
logger.Error.Fatalf("Could not exec '%s': %s",
strings.Join(os.Args, " "), err)
}
}
}