func initShape() {
initShapeOnce.Do(func() {
shape.Init(XU.Conn())
})
}
func Initialize(x *xgbutil.XUtil,
cmdEnv *gribble.Environment, hacks CommandHacks, configDir string) {
var err error
X = x
Startup = true
ConfigDir = configDir
gribbleEnv = cmdEnv
cmdHacks = hacks
Root = xwindow.New(X, X.RootWin())
if _, err = Root.Geometry(); err != nil {
logger.Error.Fatalf("Could not get ROOT window geometry: %s", err)
}
if Config, err = loadConfig(); err != nil {
logger.Error.Fatalf("Could not load configuration: %s", err)
}
if Theme, err = loadTheme(); err != nil {
logger.Error.Fatalf("Could not load theme: %s", err)
}
Clients = make(ClientList, 0, 50)
Prompts = newPrompts()
Heads = heads.NewHeads(X, Config.DefaultLayout)
// If _NET_DESKTOP_NAMES is set, let's use workspaces from that instead.
if names, _ := ewmh.DesktopNamesGet(X); len(names) > 0 {
for _, wrkName := range names {
if err := AddWorkspace(wrkName); err != nil {
logger.Warning.Printf("Could not add workspace %s: %s",
wrkName, err)
}
}
} else {
for _, wrkName := range Config.Workspaces {
if err := AddWorkspace(wrkName); err != nil {
logger.Error.Fatalf("Could not initialize workspaces: %s", err)
}
}
}
Heads.Initialize(Clients)
keybindings()
rootMouseSetup()
StickyWrk = Heads.Workspaces.NewSticky()
err = shape.Init(X.Conn())
if err != nil {
ShapeExt = false
logger.Warning.Printf("The X SHAPE extension could not be loaded. " +
"Google Chrome might look ugly.")
} else {
ShapeExt = true
}
Restart = false
ewmhClientList()
ewmhNumberOfDesktops()
ewmhCurrentDesktop()
ewmhVisibleDesktops()
ewmhDesktopNames()
ewmhDesktopGeometry()
}
func main() {
// I don't want to retype all of these things
// TODO: find/replace fatal with util.Fatal
fatal := util.Fatal
// establish X connection
X, err := xgbutil.NewConn()
fatal(err)
// initiate extension tools
shape.Init(X.Conn())
mousebind.Initialize(X)
// Detail our current window manager. Insures a minimum of EWMH compliance
wm_name, err := ewmh.GetEwmhWM(X)
fatal(err)
log.Printf("Window manager: %s\n", wm_name)
// create the cross UI
cross_ui := makeCross(X)
cross := cross_ui.Window
// map the icons on the cross the the actions they should perform
// when objects are dropped over them
win_to_action := make(map[xproto.Window]wm.WindowInteraction)
for name, icon := range cross_ui.Icons {
if action, ok := wm.Actions[name]; ok {
win_to_action[icon.Window.Id] = action
} else {
// otherwise,
// shade the icon because it has no action attatched to it
icon.SetState(ui.StateDisabled)
}
}
// define handlers for the three parts of any drag-drop operation
dm := util.DragManager{}
handleDragStart := func(X *xgbutil.XUtil, rx, ry, ex, ey int) (cont bool, cursor xproto.Cursor) {
// find the window we are trying to drag
win, err := wm.FindManagedWindowUnderMouse(X)
if err != nil {
// don't continue the drag
log.Printf("DragStart: could not get incoming window: %v\n", err)
return false, 0
}
// cool awesome!
dm.StartDrag(win)
// continue the drag
return true, 0
}
handleDragStep := func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
// see if we have a window that ISN'T the incoming window
win, err := wm.FindManagedWindowUnderMouse(X)
if err != nil {
// whatever
log.Printf("DragStep: no window found or something: %v\n", err)
return
}
// oh we have a window? and it isn't the start window!? And not the current target!?
if win != dm.Incoming && win != dm.Target {
// reposition the cross over it
// TODO: actually do this, center operates on rects, and all I have is this xproto.Window
dm.SetTarget(win)
// get the target width/height
target_geom, err := xwindow.New(X, win).Geometry()
if err != nil {
log.Printf("DragStep: issues getting target geometry: %v\n", err)
return
}
// set the target goemetry X, Y to the actual x, y relative to the root window
tx, ty, err := wm.TranslateCoordinatesSync(X, win, X.RootWin(), 0, 0)
if err != nil {
log.Printf("DragStep: issue translating target coordinates to root coordinates: %v\n", err)
return
}
target_geom.XSet(tx)
target_geom.YSet(ty)
x, y := util.CenterOver(cross.Geom, target_geom)
cross.Move(x, y)
cross.Map()
}
}
handleDragEnd := func(X *xgbutil.XUtil, rx, ry, ex, ey int) {
exit_early := false
// get icon we are dropping over
icon_win, _, err := wm.FindNextUnderMouse(X, cross.Id)
if err != nil {
log.Printf("DragEnd: icon not found: %v\n", err)
exit_early = true
}
incoming, target, err := dm.EndDrag()
// drag manager produces errors if we don't have both an Incoming and a Target yet
if err != nil {
log.Printf("DragEnd: drag manager state error: %v\n", err)
exit_early = true
}
// we tried: hide UI
cross.Unmap()
// we had some sort of error, escape!
if exit_early {
return
}
// retrieve the action that this icon indicates
if action, ok := win_to_action[icon_win]; ok {
// create util-window objects from our window IDs
if incoming_id, inc_ok := incoming.(xproto.Window); inc_ok {
inc_win := xwindow.New(X, incoming_id)
if target_id, t_ok := target.(xproto.Window); t_ok {
t_win := xwindow.New(X, target_id)
// perform the action!
action(t_win, inc_win)
} else {
log.Println("DragEnd: target type error (was %v)\n", target)
}
} else {
log.Println("DragEnd: incoming type error (was %v)\n", incoming)
}
} else {
log.Printf("DragEnd: couldn't map window %v to an action", icon_win)
}
}
mousebind.Drag(X, X.RootWin(), X.RootWin(), KeyComboMove, true,
handleDragStart,
handleDragStep,
handleDragEnd)
///////////////////////////////////////////////////////////////////////////
// Window resizing behavior spike
ManageResizingWindows(X)
// start event loop, even though we have no events
// to keep app from just closing
xevent.Main(X)
}