Slate config file

.slate.js

var current_position = 0;

var pushLeft = slate.operation("move", {
    "x": "screenOriginX",
    "y": "screenOriginY",
    "width": "screenSizeX/2",
    "height": "screenSizeY"
});

var pushRight = slate.operation("move", {
    "x": "screenOriginX+screenSizeX/2",
    "y": "screenOriginY",
    "width": "screenSizeX/2",
    "height": "screenSizeY"
});

var fullscreen = slate.operation("move", {
    "x": "screenOriginX",
    "y": "screenOriginY",
    "width": "screenSizeX",
    "height": "screenSizeY"
});

slate.bind("right:ctrl,cmd", function(win) {
    win.doOperation(pushRight);
});
slate.bind("left:ctrl,cmd", function(win) {
    win.doOperation(pushLeft);
});
slate.bind("up:ctrl,cmd", function(win) {
    win.doOperation(fullscreen);
});
slate.bind("down:ctrl,cmd", function(win) {
    var x = "screenOriginX";
    var y = "screenOriginY";
    if (current_position == 1 || current_position == 3){
        x = "screenOriginX+screenSizeX/2";
    }
    if (current_position == 2 || current_position == 3){
        y = "screenOriginY+screenSizeY/2";
    }
    win.doOperation(slate.operation("move", {
        "x": x,
        "y": y,
        "width": "screenSizeX/2",
        "height": "screenSizeY/2"
    }));
    current_position += 1;
    current_position = current_position % 4;
});