external/bsd/tmux/dist/cmd-join-pane.c

   1 /* Id */
   2
   3 /*
   4  * Copyright (c) 2011 George Nachman <tmux@georgester.com>
   5  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #include <sys/types.h>
  21
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 #include "tmux.h"
  26
  27 /*
  28  * Join or move a pane into another (like split/swap/kill).
  29  */
  30
  31 void             cmd_join_pane_key_binding(struct cmd *, int);
  32 enum cmd_retval  cmd_join_pane_exec(struct cmd *, struct cmd_q *);
  33
  34 enum cmd_retval  join_pane(struct cmd *, struct cmd_q *, int);
  35
  36 const struct cmd_entry cmd_join_pane_entry = {
  37         "join-pane", "joinp",
  38         "bdhvp:l:s:t:", 0, 0,
  39         "[-bdhv] [-p percentage|-l size] [-s src-pane] [-t dst-pane]",
  40         0,
  41         cmd_join_pane_key_binding,
  42         cmd_join_pane_exec
  43 };
  44
  45 const struct cmd_entry cmd_move_pane_entry = {
  46         "move-pane", "movep",
  47         "bdhvp:l:s:t:", 0, 0,
  48         "[-bdhv] [-p percentage|-l size] [-s src-pane] [-t dst-pane]",
  49         0,
  50         NULL,
  51         cmd_join_pane_exec
  52 };
  53
  54 void
  55 cmd_join_pane_key_binding(struct cmd *self, int key)
  56 {
  57         switch (key) {
  58         case '%':
  59                 self->args = args_create(0);
  60                 args_set(self->args, 'h', NULL);
  61                 break;
  62         default:
  63                 self->args = args_create(0);
  64                 break;
  65         }
  66 }
  67
  68 enum cmd_retval
  69 cmd_join_pane_exec(struct cmd *self, struct cmd_q *cmdq)
  70 {
  71         return (join_pane(self, cmdq, self->entry == &cmd_join_pane_entry));
  72 }
  73
  74 enum cmd_retval
  75 join_pane(struct cmd *self, struct cmd_q *cmdq, int not_same_window)
  76 {
  77         struct args             *args = self->args;
  78         struct session          *dst_s;
  79         struct winlink          *src_wl, *dst_wl;
  80         struct window           *src_w, *dst_w;
  81         struct window_pane      *src_wp, *dst_wp;
  82         char                    *cause;
  83         int                      size, percentage, dst_idx;
  84         enum layout_type         type;
  85         struct layout_cell      *lc;
  86
  87         dst_wl = cmd_find_pane(cmdq, args_get(args, 't'), &dst_s, &dst_wp);
  88         if (dst_wl == NULL)
  89                 return (CMD_RETURN_ERROR);
  90         dst_w = dst_wl->window;
  91         dst_idx = dst_wl->idx;
  92         server_unzoom_window(dst_w);
  93
  94         src_wl = cmd_find_pane(cmdq, args_get(args, 's'), NULL, &src_wp);
  95         if (src_wl == NULL)
  96                 return (CMD_RETURN_ERROR);
  97         src_w = src_wl->window;
  98         server_unzoom_window(src_w);
  99
 100         if (not_same_window && src_w == dst_w) {
 101                 cmdq_error(cmdq, "can't join a pane to its own window");
 102                 return (CMD_RETURN_ERROR);
 103         }
 104         if (!not_same_window && src_wp == dst_wp) {
 105                 cmdq_error(cmdq, "source and target panes must be different");
 106                 return (CMD_RETURN_ERROR);
 107         }
 108
 109         type = LAYOUT_TOPBOTTOM;
 110         if (args_has(args, 'h'))
 111                 type = LAYOUT_LEFTRIGHT;
 112
 113         size = -1;
 114         if (args_has(args, 'l')) {
 115                 size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
 116                 if (cause != NULL) {
 117                         cmdq_error(cmdq, "size %s", cause);
 118                         free(cause);
 119                         return (CMD_RETURN_ERROR);
 120                 }
 121         } else if (args_has(args, 'p')) {
 122                 percentage = args_strtonum(args, 'p', 0, 100, &cause);
 123                 if (cause != NULL) {
 124                         cmdq_error(cmdq, "percentage %s", cause);
 125                         free(cause);
 126                         return (CMD_RETURN_ERROR);
 127                 }
 128                 if (type == LAYOUT_TOPBOTTOM)
 129                         size = (dst_wp->sy * percentage) / 100;
 130                 else
 131                         size = (dst_wp->sx * percentage) / 100;
 132         }
 133         lc = layout_split_pane(dst_wp, type, size, args_has(args, 'b'));
 134         if (lc == NULL) {
 135                 cmdq_error(cmdq, "create pane failed: pane too small");
 136                 return (CMD_RETURN_ERROR);
 137         }
 138
 139         layout_close_pane(src_wp);
 140
 141         if (src_w->active == src_wp) {
 142                 src_w->active = TAILQ_PREV(src_wp, window_panes, entry);
 143                 if (src_w->active == NULL)
 144                         src_w->active = TAILQ_NEXT(src_wp, entry);
 145         }
 146         TAILQ_REMOVE(&src_w->panes, src_wp, entry);
 147
 148         if (window_count_panes(src_w) == 0)
 149                 server_kill_window(src_w);
 150         else
 151                 notify_window_layout_changed(src_w);
 152
 153         src_wp->window = dst_w;
 154         TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
 155         layout_assign_pane(lc, src_wp);
 156
 157         recalculate_sizes();
 158
 159         server_redraw_window(src_w);
 160         server_redraw_window(dst_w);
 161
 162         if (!args_has(args, 'd')) {
 163                 window_set_active_pane(dst_w, src_wp);
 164                 session_select(dst_s, dst_idx);
 165                 server_redraw_session(dst_s);
 166         } else
 167                 server_status_session(dst_s);
 168
 169         notify_window_layout_changed(dst_w);
 170         return (CMD_RETURN_NORMAL);
 171 }