cmd-select-layout.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <stdlib.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Switch window to selected layout.
  27  */
  28
  29 static enum cmd_retval  cmd_select_layout_exec(struct cmd *,
  30                             struct cmdq_item *);
  31
  32 const struct cmd_entry cmd_select_layout_entry = {
  33         .name = "select-layout",
  34         .alias = "selectl",
  35
  36         .args = { "Enopt:", 0, 1, NULL },
  37         .usage = "[-Enop] " CMD_TARGET_PANE_USAGE " [layout-name]",
  38
  39         .target = { 't', CMD_FIND_PANE, 0 },
  40
  41         .flags = CMD_AFTERHOOK,
  42         .exec = cmd_select_layout_exec
  43 };
  44
  45 const struct cmd_entry cmd_next_layout_entry = {
  46         .name = "next-layout",
  47         .alias = "nextl",
  48
  49         .args = { "t:", 0, 0, NULL },
  50         .usage = CMD_TARGET_WINDOW_USAGE,
  51
  52         .target = { 't', CMD_FIND_WINDOW, 0 },
  53
  54         .flags = CMD_AFTERHOOK,
  55         .exec = cmd_select_layout_exec
  56 };
  57
  58 const struct cmd_entry cmd_previous_layout_entry = {
  59         .name = "previous-layout",
  60         .alias = "prevl",
  61
  62         .args = { "t:", 0, 0, NULL },
  63         .usage = CMD_TARGET_WINDOW_USAGE,
  64
  65         .target = { 't', CMD_FIND_WINDOW, 0 },
  66
  67         .flags = CMD_AFTERHOOK,
  68         .exec = cmd_select_layout_exec
  69 };
  70
  71 static enum cmd_retval
  72 cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
  73 {
  74         struct args             *args = cmd_get_args(self);
  75         struct cmd_find_state   *target = cmdq_get_target(item);
  76         struct winlink          *wl = target->wl;
  77         struct window           *w = wl->window;
  78         struct window_pane      *wp = target->wp;
  79         const char              *layoutname;
  80         char                    *oldlayout, *cause;
  81         int                      next, previous, layout;
  82
  83         server_unzoom_window(w);
  84
  85         next = (cmd_get_entry(self) == &cmd_next_layout_entry);
  86         if (args_has(args, 'n'))
  87                 next = 1;
  88         previous = (cmd_get_entry(self) == &cmd_previous_layout_entry);
  89         if (args_has(args, 'p'))
  90                 previous = 1;
  91
  92         oldlayout = w->old_layout;
  93         w->old_layout = layout_dump(w->layout_root);
  94
  95         if (next || previous) {
  96                 if (next)
  97                         layout_set_next(w);
  98                 else
  99                         layout_set_previous(w);
 100                 goto changed;
 101         }
 102
 103         if (args_has(args, 'E')) {
 104                 layout_spread_out(wp);
 105                 goto changed;
 106         }
 107
 108         if (args_count(args) != 0)
 109                 layoutname = args_string(args, 0);
 110         else if (args_has(args, 'o'))
 111                 layoutname = oldlayout;
 112         else
 113                 layoutname = NULL;
 114
 115         if (!args_has(args, 'o')) {
 116                 if (layoutname == NULL)
 117                         layout = w->lastlayout;
 118                 else
 119                         layout = layout_set_lookup(layoutname);
 120                 if (layout != -1) {
 121                         layout_set_select(w, layout);
 122                         goto changed;
 123                 }
 124         }
 125
 126         if (layoutname != NULL) {
 127                 if (layout_parse(w, layoutname, &cause) == -1) {
 128                         cmdq_error(item, "%s: %s", cause, layoutname);
 129                         free(cause);
 130                         goto error;
 131                 }
 132                 goto changed;
 133         }
 134
 135         free(oldlayout);
 136         return (CMD_RETURN_NORMAL);
 137
 138 changed:
 139         free(oldlayout);
 140         recalculate_sizes();
 141         server_redraw_window(w);
 142         notify_window("window-layout-changed", w);
 143         return (CMD_RETURN_NORMAL);
 144
 145 error:
 146         free(w->old_layout);
 147         w->old_layout = oldlayout;
 148         return (CMD_RETURN_ERROR);
 149 }