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Annotation of src/usr.bin/tmux/cmd-choose-buffer.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             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,
        !            36:        CMD_TARGET_WINDOW_USAGE " [template]",
        !            37:        CMD_ARG01, "",
        !            38:        cmd_target_init,
        !            39:        cmd_target_parse,
        !            40:        cmd_choose_buffer_exec,
        !            41:        cmd_target_free,
        !            42:        cmd_target_print
        !            43: };
        !            44:
        !            45: struct cmd_choose_buffer_data {
        !            46:        struct client   *client;
        !            47:        char            *template;
        !            48: };
        !            49:
        !            50: int
        !            51: cmd_choose_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
        !            52: {
        !            53:        struct cmd_target_data          *data = self->data;
        !            54:        struct cmd_choose_buffer_data   *cdata;
        !            55:        struct session                  *s;
        !            56:        struct winlink                  *wl;
        !            57:        struct paste_buffer             *pb;
        !            58:        u_int                            idx;
        !            59:        char                            *tmp;
        !            60:
        !            61:        if (ctx->curclient == NULL) {
        !            62:                ctx->error(ctx, "must be run interactively");
        !            63:                return (-1);
        !            64:        }
        !            65:        s = ctx->curclient->session;
        !            66:
        !            67:        if ((wl = cmd_find_window(ctx, data->target, NULL)) == NULL)
        !            68:                return (-1);
        !            69:
        !            70:        if (paste_get_top(&s->buffers) == NULL)
        !            71:                return (0);
        !            72:
        !            73:        if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
        !            74:                return (0);
        !            75:
        !            76:        idx = 0;
        !            77:        while ((pb = paste_walk_stack(&s->buffers, &idx)) != NULL) {
        !            78:                tmp = paste_print(pb, 50);
        !            79:                window_choose_add(wl->window->active, idx - 1,
        !            80:                    "%u: %zu bytes: \"%s\"", idx - 1, pb->size, tmp);
        !            81:                xfree(tmp);
        !            82:        }
        !            83:
        !            84:        cdata = xmalloc(sizeof *cdata);
        !            85:        if (data->arg != NULL)
        !            86:                cdata->template = xstrdup(data->arg);
        !            87:        else
        !            88:                cdata->template = xstrdup("paste-buffer -b '%%'");
        !            89:        cdata->client = ctx->curclient;
        !            90:        cdata->client->references++;
        !            91:
        !            92:        window_choose_ready(wl->window->active,
        !            93:            0, cmd_choose_buffer_callback, cmd_choose_buffer_free, cdata);
        !            94:
        !            95:        return (0);
        !            96: }
        !            97:
        !            98: void
        !            99: cmd_choose_buffer_callback(void *data, int idx)
        !           100: {
        !           101:        struct cmd_choose_buffer_data   *cdata = data;
        !           102:        struct cmd_list                 *cmdlist;
        !           103:        struct cmd_ctx                   ctx;
        !           104:        char                            *template, *cause, tmp[16];
        !           105:
        !           106:        if (idx == -1)
        !           107:                return;
        !           108:        if (cdata->client->flags & CLIENT_DEAD)
        !           109:                return;
        !           110:
        !           111:        xsnprintf(tmp, sizeof tmp, "%u", idx);
        !           112:        template = cmd_template_replace(cdata->template, tmp, 1);
        !           113:
        !           114:        if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
        !           115:                if (cause != NULL) {
        !           116:                        *cause = toupper((u_char) *cause);
        !           117:                        status_message_set(cdata->client, "%s", cause);
        !           118:                        xfree(cause);
        !           119:                }
        !           120:                xfree(template);
        !           121:                return;
        !           122:        }
        !           123:        xfree(template);
        !           124:
        !           125:        ctx.msgdata = NULL;
        !           126:        ctx.curclient = cdata->client;
        !           127:
        !           128:        ctx.error = key_bindings_error;
        !           129:        ctx.print = key_bindings_print;
        !           130:        ctx.info = key_bindings_info;
        !           131:
        !           132:        ctx.cmdclient = NULL;
        !           133:
        !           134:        cmd_list_exec(cmdlist, &ctx);
        !           135:        cmd_list_free(cmdlist);
        !           136: }
        !           137:
        !           138: void
        !           139: cmd_choose_buffer_free(void *data)
        !           140: {
        !           141:        struct cmd_choose_buffer_data   *cdata = data;
        !           142:
        !           143:        cdata->client->references--;
        !           144:        xfree(cdata->template);
        !           145:        xfree(cdata);
        !           146: }