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Annotation of src/usr.bin/tmux/cmd-choose-buffer.c, Revision 1.5

1.5     ! nicm        1: /* $OpenBSD: cmd-choose-buffer.c,v 1.4 2011/01/04 00:42:46 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2010 Nicholas Marriott <nicm@users.sourceforge.net>
                      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 <ctype.h>
                     22:
                     23: #include "tmux.h"
                     24:
                     25: /*
                     26:  * Enter choice mode to choose a buffer.
                     27:  */
                     28:
                     29: int    cmd_choose_buffer_exec(struct cmd *, struct cmd_ctx *);
                     30:
                     31: void   cmd_choose_buffer_callback(void *, int);
                     32: void   cmd_choose_buffer_free(void *);
                     33:
                     34: const struct cmd_entry cmd_choose_buffer_entry = {
                     35:        "choose-buffer", NULL,
1.5     ! nicm       36:        "F:t:", 0, 1,
        !            37:        CMD_TARGET_WINDOW_USAGE " [-F format] [template]",
1.4       nicm       38:        0,
                     39:        NULL,
                     40:        NULL,
                     41:        cmd_choose_buffer_exec
1.1       nicm       42: };
                     43:
                     44: struct cmd_choose_buffer_data {
1.4       nicm       45:        struct client   *client;
                     46:        char            *template;
1.1       nicm       47: };
                     48:
                     49: int
                     50: cmd_choose_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
                     51: {
1.4       nicm       52:        struct args                     *args = self->args;
1.1       nicm       53:        struct cmd_choose_buffer_data   *cdata;
                     54:        struct winlink                  *wl;
                     55:        struct paste_buffer             *pb;
1.5     ! nicm       56:        struct format_tree              *ft;
1.1       nicm       57:        u_int                            idx;
1.5     ! nicm       58:        char                            *line;
        !            59:        const char                      *template;
1.1       nicm       60:
                     61:        if (ctx->curclient == NULL) {
                     62:                ctx->error(ctx, "must be run interactively");
                     63:                return (-1);
                     64:        }
                     65:
1.5     ! nicm       66:        if ((template = args_get(args, 'F')) == NULL)
        !            67:                template = DEFAULT_BUFFER_LIST_TEMPLATE;
        !            68:
1.4       nicm       69:        if ((wl = cmd_find_window(ctx, args_get(args, 't'), NULL)) == NULL)
1.1       nicm       70:                return (-1);
                     71:
1.2       nicm       72:        if (paste_get_top(&global_buffers) == NULL)
1.1       nicm       73:                return (0);
                     74:
                     75:        if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
                     76:                return (0);
                     77:
                     78:        idx = 0;
1.2       nicm       79:        while ((pb = paste_walk_stack(&global_buffers, &idx)) != NULL) {
1.5     ! nicm       80:                ft = format_create();
        !            81:                format_add(ft, "line", "%u", idx - 1);
        !            82:                format_paste_buffer(ft, pb);
        !            83:
        !            84:                line = format_expand(ft, template);
        !            85:                window_choose_add(wl->window->active, idx - 1, "%s", line);
        !            86:
        !            87:                xfree(line);
        !            88:                format_free(ft);
1.1       nicm       89:        }
                     90:
                     91:        cdata = xmalloc(sizeof *cdata);
1.4       nicm       92:        if (args->argc != 0)
                     93:                cdata->template = xstrdup(args->argv[0]);
1.1       nicm       94:        else
                     95:                cdata->template = xstrdup("paste-buffer -b '%%'");
                     96:        cdata->client = ctx->curclient;
                     97:        cdata->client->references++;
                     98:
                     99:        window_choose_ready(wl->window->active,
                    100:            0, cmd_choose_buffer_callback, cmd_choose_buffer_free, cdata);
                    101:
                    102:        return (0);
                    103: }
                    104:
                    105: void
                    106: cmd_choose_buffer_callback(void *data, int idx)
                    107: {
                    108:        struct cmd_choose_buffer_data   *cdata = data;
                    109:        struct cmd_list                 *cmdlist;
                    110:        struct cmd_ctx                   ctx;
                    111:        char                            *template, *cause, tmp[16];
                    112:
                    113:        if (idx == -1)
                    114:                return;
                    115:        if (cdata->client->flags & CLIENT_DEAD)
                    116:                return;
                    117:
                    118:        xsnprintf(tmp, sizeof tmp, "%u", idx);
                    119:        template = cmd_template_replace(cdata->template, tmp, 1);
                    120:
                    121:        if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
                    122:                if (cause != NULL) {
                    123:                        *cause = toupper((u_char) *cause);
                    124:                        status_message_set(cdata->client, "%s", cause);
                    125:                        xfree(cause);
                    126:                }
                    127:                xfree(template);
                    128:                return;
                    129:        }
                    130:        xfree(template);
                    131:
                    132:        ctx.msgdata = NULL;
                    133:        ctx.curclient = cdata->client;
                    134:
                    135:        ctx.error = key_bindings_error;
                    136:        ctx.print = key_bindings_print;
                    137:        ctx.info = key_bindings_info;
                    138:
                    139:        ctx.cmdclient = NULL;
                    140:
                    141:        cmd_list_exec(cmdlist, &ctx);
                    142:        cmd_list_free(cmdlist);
                    143: }
                    144:
                    145: void
                    146: cmd_choose_buffer_free(void *data)
                    147: {
                    148:        struct cmd_choose_buffer_data   *cdata = data;
                    149:
                    150:        cdata->client->references--;
                    151:        xfree(cdata->template);
                    152:        xfree(cdata);
                    153: }