func handleClientMessages(X *xgbutil.XUtil, ev xevent.ClientMessageEvent) {
name, err := xprop.AtomName(X, ev.Type)
if err != nil {
logger.Warning.Printf("Could not get atom name for '%s': %s", ev, err)
return
}
switch name {
case "_NET_NUMBER_OF_DESKTOPS":
logger.Warning.Printf("Wingo does not support adding/removing " +
"desktops using the _NET_NUMBER_OF_DESKTOPS property. Please use " +
"the Wingo commands 'AddWorkspace' and 'RemoveWorkspace' to add " +
"or remove workspaces.")
case "_NET_DESKTOP_GEOMETRY":
logger.Warning.Printf("Wingo does not support the " +
"_NET_DESKTOP_GEOMETRY property. Namely, more than one workspace " +
"can be visible at a time, so different workspaces can have " +
"different geometries.")
case "_NET_DESKTOP_VIEWPORT":
logger.Warning.Printf("Wingo does not use viewports, and therefore " +
"does not support the _NET_DESKTOP_VIEWPORT property.")
case "_NET_CURRENT_DESKTOP":
index := int(ev.Data.Data32[0])
if wrk := wm.Heads.Workspaces.Get(index); wrk != nil {
wm.SetWorkspace(wrk, false)
wm.FocusFallback()
} else {
logger.Warning.Printf("Desktop index %d is not in the range "+
"[0, %d).", index, len(wm.Heads.Workspaces.Wrks))
}
default:
logger.Warning.Printf("Unknown root client message: %s", name)
}
}
func (cmd WorkspaceToHead) Run() gribble.Value {
return syncRun(func() gribble.Value {
withWorkspace(cmd.Workspace, func(wrk *workspace.Workspace) {
wm.WorkspaceToHead(cmd.Head, wrk)
wm.FocusFallback()
})
return nil
})
}
func (cmd WorkspaceGreedy) Run() gribble.Value {
return syncRun(func() gribble.Value {
withWorkspace(cmd.Workspace, func(wrk *workspace.Workspace) {
wm.SetWorkspace(wrk, true)
wm.FocusFallback()
})
return nil
})
}
func (cmd HeadFocus) Run() gribble.Value {
return syncRun(func() gribble.Value {
wm.Heads.WithVisibleWorkspace(cmd.Head,
func(wrk *workspace.Workspace) {
wm.SetWorkspace(wrk, false)
})
wm.FocusFallback()
return nil
})
}
func (cmd HeadCycle) Run() gribble.Value {
return syncRun(func() gribble.Value {
cur := wm.Heads.VisibleIndex(wm.Workspace())
next := misc.Mod(cur+1, wm.Heads.NumHeads())
wm.Heads.WithVisibleWorkspace(next,
func(wrk *workspace.Workspace) {
wm.SetWorkspace(wrk, false)
})
wm.FocusFallback()
return nil
})
}
func (cmd WorkspaceGreedyWithClient) Run() gribble.Value {
return syncRun(func() gribble.Value {
withWorkspace(cmd.Workspace, func(wrk *workspace.Workspace) {
withClient(cmd.Client, func(c *xclient.Client) {
c.Raise()
wrk.Add(c)
wm.SetWorkspace(wrk, true)
wm.FocusFallback()
})
})
return nil
})
}
func (cmd RemoveWorkspace) Run() gribble.Value {
return syncRun(func() gribble.Value {
withWorkspace(cmd.Workspace, func(wrk *workspace.Workspace) {
if err := wm.RemoveWorkspace(wrk); err != nil {
wm.PopupError("Could not remove workspace '%s': %s", wrk, err)
return
}
wm.FYI("Workspace %s removed.", wrk)
wm.FocusFallback()
})
return nil
})
}
func handleMotionNotify(X *xgbutil.XUtil, ev xevent.MotionNotifyEvent) {
qp, err := xproto.QueryPointer(X.Conn(), X.RootWin()).Reply()
if err != nil {
logger.Warning.Printf("Could not query pointer: %s", err)
return
}
geom := xrect.New(int(qp.RootX), int(qp.RootY), 1, 1)
if wrk := wm.Heads.FindMostOverlap(geom); wrk != nil {
if wrk != wm.Workspace() {
wm.SetWorkspace(wrk, false)
wm.FocusFallback()
}
}
}
func (c *Client) unmanage() {
wm.X.Grab()
defer wm.X.Ungrab()
go func() {
c.frames.destroy()
c.prompts.destroy()
}()
logger.Message.Printf("Unmanaging client: %s", c)
infoWorkspace := c.workspace.String()
infoClass := c.Class().Class
infoInstance := c.Class().Instance
infoName := c.Name()
c.frame.Unmap()
c.win.Detach()
icccm.WmStateSet(wm.X, c.Id(), &icccm.WmState{State: icccm.StateWithdrawn})
focus.Remove(c)
wm.FocusFallback()
stack.Remove(c)
c.workspace.Remove(c)
wm.RemoveClient(c)
c.attnStop()
xproto.ChangeSaveSetChecked(
wm.X.Conn(), xproto.SetModeDelete, c.Id()).Check()
if c.hadStruts {
wm.Heads.ApplyStruts(wm.Clients)
}
event.Notify(event.UnmanagedClient{
Id: c.Id(),
Name: infoName,
Workspace: infoWorkspace,
Class: infoClass,
Instance: infoInstance,
})
}
func rootInit(X *xgbutil.XUtil) {
var err error
// Listen to Root. It is all-important.
evMasks := xproto.EventMaskPropertyChange |
xproto.EventMaskFocusChange |
xproto.EventMaskButtonPress |
xproto.EventMaskButtonRelease |
xproto.EventMaskStructureNotify |
xproto.EventMaskSubstructureNotify |
xproto.EventMaskSubstructureRedirect
if wm.Config.FfmHead {
evMasks |= xproto.EventMaskPointerMotion
}
err = xwindow.New(X, X.RootWin()).Listen(evMasks)
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)
// Check where the pointer is on motion events. If it's crossed a monitor
// boundary, switch the focus of the head.
if wm.Config.FfmHead {
xevent.MotionNotifyFun(handleMotionNotify).Connect(X, wm.Root.Id)
}
}
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)
}
}
}