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Annotation of embedaddon/tmux/cmd-swap-window.c, revision 1.1.1.1

1.1       misho       1: /* $OpenBSD$ */
                      2: 
                      3: /*
                      4:  * Copyright (c) 2007 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:  * Swap one window with another.
                     27:  */
                     28: 
                     29: static enum cmd_retval cmd_swap_window_exec(struct cmd *, struct cmdq_item *);
                     30: 
                     31: const struct cmd_entry cmd_swap_window_entry = {
                     32:        .name = "swap-window",
                     33:        .alias = "swapw",
                     34: 
                     35:        .args = { "ds:t:", 0, 0 },
                     36:        .usage = "[-d] " CMD_SRCDST_WINDOW_USAGE,
                     37: 
                     38:        .sflag = CMD_WINDOW_MARKED,
                     39:        .tflag = CMD_WINDOW,
                     40: 
                     41:        .flags = 0,
                     42:        .exec = cmd_swap_window_exec
                     43: };
                     44: 
                     45: static enum cmd_retval
                     46: cmd_swap_window_exec(struct cmd *self, struct cmdq_item *item)
                     47: {
                     48:        struct session          *src, *dst;
                     49:        struct session_group    *sg_src, *sg_dst;
                     50:        struct winlink          *wl_src, *wl_dst;
                     51:        struct window           *w_src, *w_dst;
                     52: 
                     53:        wl_src = item->state.sflag.wl;
                     54:        src = item->state.sflag.s;
                     55:        sg_src = session_group_contains(src);
                     56: 
                     57:        wl_dst = item->state.tflag.wl;
                     58:        dst = item->state.tflag.s;
                     59:        sg_dst = session_group_contains(dst);
                     60: 
                     61:        if (src != dst && sg_src != NULL && sg_dst != NULL &&
                     62:            sg_src == sg_dst) {
                     63:                cmdq_error(item, "can't move window, sessions are grouped");
                     64:                return (CMD_RETURN_ERROR);
                     65:        }
                     66: 
                     67:        if (wl_dst->window == wl_src->window)
                     68:                return (CMD_RETURN_NORMAL);
                     69: 
                     70:        w_dst = wl_dst->window;
                     71:        TAILQ_REMOVE(&w_dst->winlinks, wl_dst, wentry);
                     72:        w_src = wl_src->window;
                     73:        TAILQ_REMOVE(&w_src->winlinks, wl_src, wentry);
                     74: 
                     75:        wl_dst->window = w_src;
                     76:        TAILQ_INSERT_TAIL(&w_src->winlinks, wl_dst, wentry);
                     77:        wl_src->window = w_dst;
                     78:        TAILQ_INSERT_TAIL(&w_dst->winlinks, wl_src, wentry);
                     79: 
                     80:        if (!args_has(self->args, 'd')) {
                     81:                session_select(dst, wl_dst->idx);
                     82:                if (src != dst)
                     83:                        session_select(src, wl_src->idx);
                     84:        }
                     85:        session_group_synchronize_from(src);
                     86:        server_redraw_session_group(src);
                     87:        if (src != dst) {
                     88:                session_group_synchronize_from(dst);
                     89:                server_redraw_session_group(dst);
                     90:        }
                     91:        recalculate_sizes();
                     92: 
                     93:        return (CMD_RETURN_NORMAL);
                     94: }