package oxbow

  1. Overview
  2. Docs
package oxbow
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source

Source file window_request.ml

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
open! Oxbow_core
open! Oxbow_state

let float_then (window : Window.t) f =
  match window.presentation with
  | Fullscreen _ -> ()
  | Tiled ->
    if not @@ Output.is_floating window.output
    then Window.set_presentation window Floating;
    f ()
  | Maximized _ ->
    Window.set_presentation window Floating;
    f ()
  | Floating -> f ()
;;

let handle_move wm seat (window : Window.t) =
  let from_tiled =
    match window.presentation with
    | Tiled -> not @@ Output.is_floating window.output
    | Floating | Maximized _ | Fullscreen _ -> false
  in
  Column.detach window;
  float_then window @@ fun () -> Drag.begin_move wm seat window ~from_tiled
;;

let handle_resize wm seat window edges =
  float_then window @@ fun () -> Drag.begin_resize wm seat window edges
;;

let handle_set_dimensions (wm : Wm.t) window w h =
  if Output.arranges window
  then (
    Log.warn (fun m ->
      m
        "%s requested dimensions changed while tiling"
        (Option.value ~default:"?" window.app_id));
    Window.reject_dimensions window ~width:w ~height:h)
  else (
    Window.set_geom window { window.geom with w; h };
    if window.float_seed_pending then Window.center_float window;
    let in_resize =
      List.exists
        (fun (s : Seat.t) ->
           match s.op with
           | Some (Resize { window = w; _ }) when w == window -> true
           | _ -> false)
        wm.seats
    in
    if window.presentation = Floating && not in_resize then Window.fit_to_output window)
;;

let handle_set_tags _wm window (arg : Tag.Arg.t) =
  let set_tags s = Window.set_tags window s in
  match window.output, arg with
  | Some o, _ -> Output.resolve_tag_arg ~arg o |> set_tags
  | None, Concrete s -> set_tags s
  | None, Occupied -> ()
;;

let rec handle wm window (request : Window.Request.t) =
  match request with
  | Move r -> handle_move wm r.seat window
  | Move_to { x; y } ->
    Placement.move_window_to ~x ~y window
    |> Result.iter_error @@ fun e -> Log.warn @@ fun m -> m "%s" e
  | Resize r -> handle_resize wm r.seat window r.edges
  | Resize_to { w; h } ->
    Placement.resize_window_to ~width:w ~height:h window
    |> Result.iter_error @@ fun e -> Log.warn @@ fun m -> m "%s" e
  | Maximize -> Placement.maximize wm window
  | Unmaximize -> Placement.unmaximize window
  | Fake_fullscreen -> Window.fake_fullscreen window
  | Exit_fake_fullscreen -> Window.exit_fake_fullscreen window
  | Fullscreen r -> Placement.fullscreen wm r.output window handle
  | Exit_fullscreen -> Placement.exit_fullscreen window
  | Dimensions d -> handle_set_dimensions wm window d.width d.height
  | Set_tags arg -> handle_set_tags wm window arg
  | Set_sticky scope -> Window.set_sticky window scope
  | Send_to_output_name { name; policy } ->
    Result.iter_error (fun e -> Log.warn @@ fun m -> m "%s" e)
    @@ Placement.send_window_to_name wm window name policy
  | Float -> Window.float window
  | Tile -> Window.tile window
;;

let toggle_maximize wm seat target =
  Result.map (fun _ -> None)
  @@ Targets.transact_one_window wm seat target ~plan:(fun w ->
    match w.presentation with
    | Maximized _ -> Ok (fun () -> handle wm w Unmaximize)
    | Tiled | Floating -> Ok (fun () -> handle wm w Maximize)
    | Fullscreen _ -> Error "cannot toggle maximization while window is fullscreen")
;;

let toggle_fake_fullscreen wm seat target =
  Result.map (fun _ -> None)
  @@ Targets.transact_all_windows wm seat target ~plan:(fun w ->
    match w.presentation with
    | Fullscreen _ ->
      Error "cannot toggle fake fullscreen when window is actually fullscreen"
    | _ ->
      Ok
        (fun () ->
          (if w.is_fake_fullscreen then Exit_fake_fullscreen else Fake_fullscreen)
          |> handle wm w))
;;

let toggle_fullscreen wm seat target =
  Result.map (fun _ -> None)
  @@ Targets.transact_one_window wm seat target ~plan:(fun w ->
    match w.presentation with
    | Fullscreen _ -> Ok (fun () -> handle wm w Exit_fullscreen)
    | _ when Option.is_none w.output -> Error Messages.window_missing_output
    | _ -> Ok (fun () -> handle wm w @@ Fullscreen { output = w.output }))
;;

let move_interactive wm (seat : Seat.t) =
  match seat.op, seat.hovered with
  | Some _, _ -> Error "cannot begin move during an active operation"
  | None, None -> Error "no hovered window"
  | None, Some w when Window.is_fullscreen w -> Error "cannot move a fullscreen window"
  | None, Some w ->
    handle wm w @@ Move { seat };
    Ok None
;;

let resize_interactive wm (seat : Seat.t) =
  match seat.op, seat.hovered with
  | Some _, _ -> Error "cannot begin resize during an active operation"
  | None, None -> Error "no hovered window"
  | None, Some w when Window.is_fullscreen w -> Error "cannot resize a fullscreen window"
  | None, Some w ->
    let g = w.geom in
    let open Wire in
    let horiz =
      if Int32.(compare seat.position.x (add g.x (div g.w 2l))) < 0
      then Edges.left
      else Edges.right
    in
    let vert =
      if Int32.(compare seat.position.y (add g.y (div g.h 2l))) < 0
      then Edges.top
      else Edges.bottom
    in
    handle wm w (Resize { seat; edges = Int32.logor horiz vert });
    Ok None
;;