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Annotation of src/usr.bin/tmux/window-choose.c, Revision 1.19

1.19    ! nicm        1: /* $OpenBSD: window-choose.c,v 1.18 2012/04/23 22:40:47 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2009 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:
1.19    ! nicm       21: #include <ctype.h>
1.1       nicm       22: #include <string.h>
                     23:
                     24: #include "tmux.h"
                     25:
                     26: struct screen *window_choose_init(struct window_pane *);
                     27: void   window_choose_free(struct window_pane *);
                     28: void   window_choose_resize(struct window_pane *, u_int, u_int);
1.16      nicm       29: void   window_choose_key(struct window_pane *, struct session *, int);
1.1       nicm       30: void   window_choose_mouse(
1.16      nicm       31:            struct window_pane *, struct session *, struct mouse_event *);
1.1       nicm       32:
1.19    ! nicm       33: void   window_choose_fire_callback(
        !            34:            struct window_pane *, struct window_choose_data *);
1.1       nicm       35: void   window_choose_redraw_screen(struct window_pane *);
                     36: void   window_choose_write_line(
1.13      nicm       37:            struct window_pane *, struct screen_write_ctx *, u_int);
1.1       nicm       38:
                     39: void   window_choose_scroll_up(struct window_pane *);
                     40: void   window_choose_scroll_down(struct window_pane *);
                     41:
                     42: const struct window_mode window_choose_mode = {
                     43:        window_choose_init,
                     44:        window_choose_free,
                     45:        window_choose_resize,
                     46:        window_choose_key,
                     47:        window_choose_mouse,
                     48:        NULL,
                     49: };
                     50:
                     51: struct window_choose_mode_data {
                     52:        struct screen           screen;
                     53:
                     54:        struct mode_key_data    mdata;
                     55:
                     56:        ARRAY_DECL(, struct window_choose_mode_item) list;
                     57:        u_int                   top;
                     58:        u_int                   selected;
                     59:
1.19    ! nicm       60:        void                    (*callbackfn)(struct window_choose_data *);
        !            61:        void                    (*freefn)(struct window_choose_data *);
1.1       nicm       62: };
                     63:
1.11      nicm       64: int    window_choose_key_index(struct window_choose_mode_data *, u_int);
                     65: int    window_choose_index_key(struct window_choose_mode_data *, int);
                     66:
1.1       nicm       67: void
1.19    ! nicm       68: window_choose_add(struct window_pane *wp, struct window_choose_data *wcd)
1.1       nicm       69: {
                     70:        struct window_choose_mode_data  *data = wp->modedata;
                     71:        struct window_choose_mode_item  *item;
                     72:
                     73:        ARRAY_EXPAND(&data->list, 1);
                     74:        item = &ARRAY_LAST(&data->list);
                     75:
1.19    ! nicm       76:        item->name = format_expand(wcd->ft, wcd->ft_template);
        !            77:        item->wcd = wcd;
1.1       nicm       78: }
                     79:
                     80: void
1.3       nicm       81: window_choose_ready(struct window_pane *wp, u_int cur,
1.19    ! nicm       82:     void (*callbackfn)(struct window_choose_data *),
        !            83:     void (*freefn)(struct window_choose_data *))
1.1       nicm       84: {
                     85:        struct window_choose_mode_data  *data = wp->modedata;
                     86:        struct screen                   *s = &data->screen;
                     87:
                     88:        data->selected = cur;
                     89:        if (data->selected > screen_size_y(s) - 1)
                     90:                data->top = ARRAY_LENGTH(&data->list) - screen_size_y(s);
                     91:
1.3       nicm       92:        data->callbackfn = callbackfn;
                     93:        data->freefn = freefn;
1.1       nicm       94:
                     95:        window_choose_redraw_screen(wp);
                     96: }
                     97:
                     98: struct screen *
                     99: window_choose_init(struct window_pane *wp)
                    100: {
                    101:        struct window_choose_mode_data  *data;
                    102:        struct screen                   *s;
1.5       nicm      103:        int                              keys;
1.1       nicm      104:
                    105:        wp->modedata = data = xmalloc(sizeof *data);
1.3       nicm      106:
                    107:        data->callbackfn = NULL;
                    108:        data->freefn = NULL;
                    109:
1.1       nicm      110:        ARRAY_INIT(&data->list);
                    111:        data->top = 0;
                    112:
                    113:        s = &data->screen;
                    114:        screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
                    115:        s->mode &= ~MODE_CURSOR;
1.7       nicm      116:        if (options_get_number(&wp->window->options, "mode-mouse"))
1.17      nicm      117:                s->mode |= MODE_MOUSE_STANDARD;
1.1       nicm      118:
1.5       nicm      119:        keys = options_get_number(&wp->window->options, "mode-keys");
                    120:        if (keys == MODEKEY_EMACS)
1.6       nicm      121:                mode_key_init(&data->mdata, &mode_key_tree_emacs_choice);
1.5       nicm      122:        else
1.6       nicm      123:                mode_key_init(&data->mdata, &mode_key_tree_vi_choice);
1.1       nicm      124:
                    125:        return (s);
                    126: }
                    127:
1.19    ! nicm      128: struct window_choose_data *
        !           129: window_choose_data_create(struct cmd_ctx *ctx)
        !           130: {
        !           131:        struct window_choose_data       *wcd;
        !           132:
        !           133:        wcd = xmalloc(sizeof *wcd);
        !           134:        wcd->ft = format_create();
        !           135:        wcd->ft_template = NULL;
        !           136:        wcd->action = NULL;
        !           137:        wcd->raw_format = NULL;
        !           138:        wcd->client = ctx->curclient;
        !           139:        wcd->session = ctx->curclient->session;
        !           140:        wcd->idx = -1;
        !           141:
        !           142:        return (wcd);
        !           143: }
        !           144:
1.1       nicm      145: void
                    146: window_choose_free(struct window_pane *wp)
                    147: {
                    148:        struct window_choose_mode_data  *data = wp->modedata;
1.19    ! nicm      149:        struct window_choose_mode_item  *item;
1.1       nicm      150:        u_int                            i;
                    151:
1.19    ! nicm      152:        for (i = 0; i < ARRAY_LENGTH(&data->list); i++) {
        !           153:                item = &ARRAY_ITEM(&data->list, i);
        !           154:                if (data->freefn != NULL && item->wcd != NULL)
        !           155:                        data->freefn(item->wcd);
        !           156:                xfree(item->name);
        !           157:        }
1.1       nicm      158:        ARRAY_FREE(&data->list);
                    159:
                    160:        screen_free(&data->screen);
                    161:        xfree(data);
                    162: }
                    163:
                    164: void
                    165: window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
                    166: {
                    167:        struct window_choose_mode_data  *data = wp->modedata;
                    168:        struct screen                   *s = &data->screen;
                    169:
                    170:        data->top = 0;
                    171:        if (data->selected > sy - 1)
                    172:                data->top = data->selected - (sy - 1);
                    173:
                    174:        screen_resize(s, sx, sy);
                    175:        window_choose_redraw_screen(wp);
                    176: }
                    177:
1.18      nicm      178: void
1.19    ! nicm      179: window_choose_fire_callback(
        !           180:        struct window_pane *wp, struct window_choose_data *wcd)
1.18      nicm      181: {
                    182:        struct window_choose_mode_data  *data = wp->modedata;
                    183:        const struct window_mode        *oldmode;
                    184:
                    185:        oldmode = wp->mode;
                    186:        wp->mode = NULL;
                    187:
1.19    ! nicm      188:        data->callbackfn(wcd);
1.18      nicm      189:
                    190:        wp->mode = oldmode;
                    191: }
                    192:
1.12      nicm      193: /* ARGSUSED */
1.1       nicm      194: void
1.16      nicm      195: window_choose_key(struct window_pane *wp, unused struct session *sess, int key)
1.1       nicm      196: {
                    197:        struct window_choose_mode_data  *data = wp->modedata;
                    198:        struct screen                   *s = &data->screen;
                    199:        struct screen_write_ctx          ctx;
                    200:        struct window_choose_mode_item  *item;
1.11      nicm      201:        u_int                            items;
                    202:        int                              idx;
1.1       nicm      203:
                    204:        items = ARRAY_LENGTH(&data->list);
                    205:
                    206:        switch (mode_key_lookup(&data->mdata, key)) {
1.5       nicm      207:        case MODEKEYCHOICE_CANCEL:
1.19    ! nicm      208:                window_choose_fire_callback(wp, NULL);
1.1       nicm      209:                window_pane_reset_mode(wp);
                    210:                break;
1.5       nicm      211:        case MODEKEYCHOICE_CHOOSE:
1.1       nicm      212:                item = &ARRAY_ITEM(&data->list, data->selected);
1.19    ! nicm      213:                window_choose_fire_callback(wp, item->wcd);
1.1       nicm      214:                window_pane_reset_mode(wp);
                    215:                break;
1.5       nicm      216:        case MODEKEYCHOICE_UP:
1.1       nicm      217:                if (items == 0)
                    218:                        break;
                    219:                if (data->selected == 0) {
                    220:                        data->selected = items - 1;
                    221:                        if (data->selected > screen_size_y(s) - 1)
                    222:                                data->top = items - screen_size_y(s);
                    223:                        window_choose_redraw_screen(wp);
                    224:                        break;
                    225:                }
                    226:                data->selected--;
                    227:                if (data->selected < data->top)
                    228:                        window_choose_scroll_up(wp);
                    229:                else {
                    230:                        screen_write_start(&ctx, wp, NULL);
                    231:                        window_choose_write_line(
                    232:                            wp, &ctx, data->selected - data->top);
                    233:                        window_choose_write_line(
                    234:                            wp, &ctx, data->selected + 1 - data->top);
                    235:                        screen_write_stop(&ctx);
                    236:                }
                    237:                break;
1.5       nicm      238:        case MODEKEYCHOICE_DOWN:
1.1       nicm      239:                if (items == 0)
                    240:                        break;
                    241:                if (data->selected == items - 1) {
                    242:                        data->selected = 0;
                    243:                        data->top = 0;
                    244:                        window_choose_redraw_screen(wp);
                    245:                        break;
                    246:                }
                    247:                data->selected++;
1.5       nicm      248:
1.15      nicm      249:                if (data->selected < data->top + screen_size_y(s)) {
1.1       nicm      250:                        screen_write_start(&ctx, wp, NULL);
                    251:                        window_choose_write_line(
                    252:                            wp, &ctx, data->selected - data->top);
                    253:                        window_choose_write_line(
                    254:                            wp, &ctx, data->selected - 1 - data->top);
                    255:                        screen_write_stop(&ctx);
1.15      nicm      256:                } else
                    257:                        window_choose_scroll_down(wp);
                    258:                break;
                    259:        case MODEKEYCHOICE_SCROLLUP:
                    260:                if (items == 0 || data->top == 0)
                    261:                        break;
                    262:                if (data->selected == data->top + screen_size_y(s) - 1) {
                    263:                        data->selected--;
                    264:                        window_choose_scroll_up(wp);
                    265:                        screen_write_start(&ctx, wp, NULL);
                    266:                        window_choose_write_line(
                    267:                            wp, &ctx, screen_size_y(s) - 1);
                    268:                        screen_write_stop(&ctx);
                    269:                } else
                    270:                        window_choose_scroll_up(wp);
                    271:                break;
                    272:        case MODEKEYCHOICE_SCROLLDOWN:
                    273:                if (items == 0 ||
                    274:                    data->top + screen_size_y(&data->screen) >= items)
                    275:                        break;
                    276:                if (data->selected == data->top) {
                    277:                        data->selected++;
                    278:                        window_choose_scroll_down(wp);
                    279:                        screen_write_start(&ctx, wp, NULL);
                    280:                        window_choose_write_line(wp, &ctx, 0);
                    281:                        screen_write_stop(&ctx);
                    282:                } else
                    283:                        window_choose_scroll_down(wp);
1.1       nicm      284:                break;
1.5       nicm      285:        case MODEKEYCHOICE_PAGEUP:
1.1       nicm      286:                if (data->selected < screen_size_y(s)) {
                    287:                        data->selected = 0;
                    288:                        data->top = 0;
                    289:                } else {
                    290:                        data->selected -= screen_size_y(s);
                    291:                        if (data->top < screen_size_y(s))
                    292:                                data->top = 0;
                    293:                        else
                    294:                                data->top -= screen_size_y(s);
                    295:                }
1.13      nicm      296:                window_choose_redraw_screen(wp);
1.1       nicm      297:                break;
1.5       nicm      298:        case MODEKEYCHOICE_PAGEDOWN:
1.1       nicm      299:                data->selected += screen_size_y(s);
                    300:                if (data->selected > items - 1)
                    301:                        data->selected = items - 1;
                    302:                data->top += screen_size_y(s);
                    303:                if (screen_size_y(s) < items) {
                    304:                        if (data->top + screen_size_y(s) > items)
                    305:                                data->top = items - screen_size_y(s);
                    306:                } else
                    307:                        data->top = 0;
                    308:                if (data->selected < data->top)
                    309:                        data->top = data->selected;
                    310:                window_choose_redraw_screen(wp);
                    311:                break;
                    312:        default:
1.11      nicm      313:                idx = window_choose_index_key(data, key);
                    314:                if (idx < 0 || (u_int) idx >= ARRAY_LENGTH(&data->list))
                    315:                        break;
                    316:                data->selected = idx;
1.13      nicm      317:
1.11      nicm      318:                item = &ARRAY_ITEM(&data->list, data->selected);
1.19    ! nicm      319:                window_choose_fire_callback(wp, item->wcd);
1.11      nicm      320:                window_pane_reset_mode(wp);
1.1       nicm      321:                break;
                    322:        }
                    323: }
                    324:
1.12      nicm      325: /* ARGSUSED */
1.1       nicm      326: void
1.10      nicm      327: window_choose_mouse(
1.16      nicm      328:     struct window_pane *wp, unused struct session *sess, struct mouse_event *m)
1.1       nicm      329: {
                    330:        struct window_choose_mode_data  *data = wp->modedata;
                    331:        struct screen                   *s = &data->screen;
                    332:        struct window_choose_mode_item  *item;
                    333:        u_int                            idx;
                    334:
1.10      nicm      335:        if ((m->b & 3) == 3)
1.1       nicm      336:                return;
1.10      nicm      337:        if (m->x >= screen_size_x(s))
1.1       nicm      338:                return;
1.10      nicm      339:        if (m->y >= screen_size_y(s))
1.1       nicm      340:                return;
                    341:
1.10      nicm      342:        idx = data->top + m->y;
1.1       nicm      343:        if (idx >= ARRAY_LENGTH(&data->list))
                    344:                return;
                    345:        data->selected = idx;
                    346:
                    347:        item = &ARRAY_ITEM(&data->list, data->selected);
1.19    ! nicm      348:        window_choose_fire_callback(wp, item->wcd);
1.1       nicm      349:        window_pane_reset_mode(wp);
                    350: }
                    351:
                    352: void
                    353: window_choose_write_line(
                    354:     struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
                    355: {
                    356:        struct window_choose_mode_data  *data = wp->modedata;
                    357:        struct window_choose_mode_item  *item;
1.9       nicm      358:        struct options                  *oo = &wp->window->options;
1.1       nicm      359:        struct screen                   *s = &data->screen;
                    360:        struct grid_cell                 gc;
1.14      nicm      361:        int                              utf8flag, key;
1.1       nicm      362:
1.3       nicm      363:        if (data->callbackfn == NULL)
1.1       nicm      364:                fatalx("called before callback assigned");
                    365:
1.2       nicm      366:        utf8flag = options_get_number(&wp->window->options, "utf8");
1.1       nicm      367:        memcpy(&gc, &grid_default_cell, sizeof gc);
                    368:        if (data->selected == data->top + py) {
1.9       nicm      369:                colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
                    370:                colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
                    371:                gc.attr |= options_get_number(oo, "mode-attr");
1.1       nicm      372:        }
                    373:
                    374:        screen_write_cursormove(ctx, 0, py);
                    375:        if (data->top + py  < ARRAY_LENGTH(&data->list)) {
                    376:                item = &ARRAY_ITEM(&data->list, data->top + py);
1.11      nicm      377:                key = window_choose_key_index(data, data->top + py);
                    378:                if (key != -1) {
                    379:                        screen_write_nputs(ctx, screen_size_x(s) - 1,
                    380:                            &gc, utf8flag, "(%c) %s", key, item->name);
                    381:                } else {
                    382:                        screen_write_nputs(ctx, screen_size_x(s) - 1,
                    383:                            &gc, utf8flag, "    %s", item->name);
                    384:                }
                    385:
1.1       nicm      386:        }
                    387:        while (s->cx < screen_size_x(s))
                    388:                screen_write_putc(ctx, &gc, ' ');
1.11      nicm      389: }
                    390:
                    391: int
                    392: window_choose_key_index(struct window_choose_mode_data *data, u_int idx)
                    393: {
                    394:        static const char       keys[] = "0123456789abcdefghijklmnopqrstuvwxyz";
                    395:        const char             *ptr;
                    396:        int                     mkey;
                    397:
                    398:        for (ptr = keys; *ptr != '\0'; ptr++) {
                    399:                mkey = mode_key_lookup(&data->mdata, *ptr);
                    400:                if (mkey != MODEKEY_NONE && mkey != MODEKEY_OTHER)
                    401:                        continue;
                    402:                if (idx-- == 0)
                    403:                        return (*ptr);
                    404:        }
                    405:        return (-1);
                    406: }
                    407:
                    408: int
                    409: window_choose_index_key(struct window_choose_mode_data *data, int key)
                    410: {
                    411:        static const char       keys[] = "0123456789abcdefghijklmnopqrstuvwxyz";
                    412:        const char             *ptr;
                    413:        int                     mkey;
                    414:        u_int                   idx = 0;
                    415:
                    416:        for (ptr = keys; *ptr != '\0'; ptr++) {
                    417:                mkey = mode_key_lookup(&data->mdata, *ptr);
                    418:                if (mkey != MODEKEY_NONE && mkey != MODEKEY_OTHER)
                    419:                        continue;
                    420:                if (key == *ptr)
                    421:                        return (idx);
                    422:                idx++;
                    423:        }
                    424:        return (-1);
1.1       nicm      425: }
                    426:
                    427: void
                    428: window_choose_redraw_screen(struct window_pane *wp)
                    429: {
                    430:        struct window_choose_mode_data  *data = wp->modedata;
                    431:        struct screen                   *s = &data->screen;
                    432:        struct screen_write_ctx          ctx;
                    433:        u_int                            i;
                    434:
                    435:        screen_write_start(&ctx, wp, NULL);
                    436:        for (i = 0; i < screen_size_y(s); i++)
                    437:                window_choose_write_line(wp, &ctx, i);
                    438:        screen_write_stop(&ctx);
                    439: }
                    440:
                    441: void
                    442: window_choose_scroll_up(struct window_pane *wp)
                    443: {
                    444:        struct window_choose_mode_data  *data = wp->modedata;
                    445:        struct screen_write_ctx          ctx;
                    446:
                    447:        if (data->top == 0)
                    448:                return;
                    449:        data->top--;
                    450:
                    451:        screen_write_start(&ctx, wp, NULL);
                    452:        screen_write_cursormove(&ctx, 0, 0);
                    453:        screen_write_insertline(&ctx, 1);
                    454:        window_choose_write_line(wp, &ctx, 0);
                    455:        if (screen_size_y(&data->screen) > 1)
                    456:                window_choose_write_line(wp, &ctx, 1);
                    457:        screen_write_stop(&ctx);
                    458: }
                    459:
                    460: void
                    461: window_choose_scroll_down(struct window_pane *wp)
                    462: {
                    463:        struct window_choose_mode_data  *data = wp->modedata;
                    464:        struct screen                   *s = &data->screen;
                    465:        struct screen_write_ctx          ctx;
                    466:
                    467:        if (data->top >= ARRAY_LENGTH(&data->list))
                    468:                return;
                    469:        data->top++;
                    470:
                    471:        screen_write_start(&ctx, wp, NULL);
                    472:        screen_write_cursormove(&ctx, 0, 0);
                    473:        screen_write_deleteline(&ctx, 1);
                    474:        window_choose_write_line(wp, &ctx, screen_size_y(s) - 1);
                    475:        if (screen_size_y(&data->screen) > 1)
                    476:                window_choose_write_line(wp, &ctx, screen_size_y(s) - 2);
                    477:        screen_write_stop(&ctx);
1.19    ! nicm      478: }
        !           479:
        !           480: void
        !           481: window_choose_ctx(struct window_choose_data *cdata)
        !           482: {
        !           483:        struct cmd_ctx           ctx;
        !           484:        struct cmd_list         *cmdlist;
        !           485:        char                    *template, *cause;
        !           486:
        !           487:        template = cmd_template_replace(cdata->action,
        !           488:                        cdata->raw_format, 1);
        !           489:
        !           490:        if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
        !           491:                if (cause != NULL) {
        !           492:                        *cause = toupper((u_char) *cause);
        !           493:                        status_message_set(cdata->client, "%s", cause);
        !           494:                        xfree(cause);
        !           495:                }
        !           496:                xfree(template);
        !           497:                return;
        !           498:        }
        !           499:        xfree(template);
        !           500:
        !           501:        ctx.msgdata = NULL;
        !           502:        ctx.curclient = cdata->client;
        !           503:
        !           504:        ctx.error = key_bindings_error;
        !           505:        ctx.print = key_bindings_print;
        !           506:        ctx.info = key_bindings_info;
        !           507:
        !           508:        ctx.cmdclient = NULL;
        !           509:
        !           510:        cmd_list_exec(cmdlist, &ctx);
        !           511:        cmd_list_free(cmdlist);
1.1       nicm      512: }