Annotation of src/usr.bin/tmux/window-choose.c, Revision 1.16
1.16 ! nicm 1: /* $OpenBSD: window-choose.c,v 1.15 2010/02/01 22:15:51 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:
21: #include <string.h>
22:
23: #include "tmux.h"
24:
25: struct screen *window_choose_init(struct window_pane *);
26: void window_choose_free(struct window_pane *);
27: void window_choose_resize(struct window_pane *, u_int, u_int);
1.16 ! nicm 28: void window_choose_key(struct window_pane *, struct session *, int);
1.1 nicm 29: void window_choose_mouse(
1.16 ! nicm 30: struct window_pane *, struct session *, struct mouse_event *);
1.1 nicm 31:
32: void window_choose_redraw_screen(struct window_pane *);
33: void window_choose_write_line(
1.13 nicm 34: struct window_pane *, struct screen_write_ctx *, u_int);
1.1 nicm 35:
36: void window_choose_scroll_up(struct window_pane *);
37: void window_choose_scroll_down(struct window_pane *);
38:
39: const struct window_mode window_choose_mode = {
40: window_choose_init,
41: window_choose_free,
42: window_choose_resize,
43: window_choose_key,
44: window_choose_mouse,
45: NULL,
46: };
47:
48: struct window_choose_mode_item {
49: char *name;
50: int idx;
51: };
52:
53: struct window_choose_mode_data {
54: struct screen screen;
55:
56: struct mode_key_data mdata;
57:
58: ARRAY_DECL(, struct window_choose_mode_item) list;
59: u_int top;
60: u_int selected;
61:
1.3 nicm 62: void (*callbackfn)(void *, int);
63: void (*freefn)(void *);
1.1 nicm 64: void *data;
65: };
66:
1.11 nicm 67: int window_choose_key_index(struct window_choose_mode_data *, u_int);
68: int window_choose_index_key(struct window_choose_mode_data *, int);
69:
1.1 nicm 70: void
71: window_choose_vadd(struct window_pane *wp, int idx, const char *fmt, va_list ap)
72: {
73: struct window_choose_mode_data *data = wp->modedata;
74: struct window_choose_mode_item *item;
75:
76: ARRAY_EXPAND(&data->list, 1);
77: item = &ARRAY_LAST(&data->list);
78: xvasprintf(&item->name, fmt, ap);
79: item->idx = idx;
80: }
81:
82: void printflike3
83: window_choose_add(struct window_pane *wp, int idx, const char *fmt, ...)
84: {
85: va_list ap;
86:
87: va_start(ap, fmt);
88: window_choose_vadd(wp, idx, fmt, ap);
89: va_end(ap);
90: }
91:
92: void
1.3 nicm 93: window_choose_ready(struct window_pane *wp, u_int cur,
94: void (*callbackfn)(void *, int), void (*freefn)(void *), void *cdata)
1.1 nicm 95: {
96: struct window_choose_mode_data *data = wp->modedata;
97: struct screen *s = &data->screen;
98:
99: data->selected = cur;
100: if (data->selected > screen_size_y(s) - 1)
101: data->top = ARRAY_LENGTH(&data->list) - screen_size_y(s);
102:
1.3 nicm 103: data->callbackfn = callbackfn;
104: data->freefn = freefn;
1.1 nicm 105: data->data = cdata;
106:
107: window_choose_redraw_screen(wp);
108: }
109:
110: struct screen *
111: window_choose_init(struct window_pane *wp)
112: {
113: struct window_choose_mode_data *data;
114: struct screen *s;
1.5 nicm 115: int keys;
1.1 nicm 116:
117: wp->modedata = data = xmalloc(sizeof *data);
1.3 nicm 118:
119: data->callbackfn = NULL;
120: data->freefn = NULL;
121: data->data = NULL;
122:
1.1 nicm 123: ARRAY_INIT(&data->list);
124: data->top = 0;
125:
126: s = &data->screen;
127: screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
128: s->mode &= ~MODE_CURSOR;
1.7 nicm 129: if (options_get_number(&wp->window->options, "mode-mouse"))
130: s->mode |= MODE_MOUSE;
1.1 nicm 131:
1.5 nicm 132: keys = options_get_number(&wp->window->options, "mode-keys");
133: if (keys == MODEKEY_EMACS)
1.6 nicm 134: mode_key_init(&data->mdata, &mode_key_tree_emacs_choice);
1.5 nicm 135: else
1.6 nicm 136: mode_key_init(&data->mdata, &mode_key_tree_vi_choice);
1.1 nicm 137:
138: return (s);
139: }
140:
141: void
142: window_choose_free(struct window_pane *wp)
143: {
144: struct window_choose_mode_data *data = wp->modedata;
145: u_int i;
146:
1.3 nicm 147: if (data->freefn != NULL && data->data != NULL)
148: data->freefn(data->data);
1.1 nicm 149:
150: for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
151: xfree(ARRAY_ITEM(&data->list, i).name);
152: ARRAY_FREE(&data->list);
153:
154: screen_free(&data->screen);
155: xfree(data);
156: }
157:
158: void
159: window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
160: {
161: struct window_choose_mode_data *data = wp->modedata;
162: struct screen *s = &data->screen;
163:
164: data->top = 0;
165: if (data->selected > sy - 1)
166: data->top = data->selected - (sy - 1);
167:
168: screen_resize(s, sx, sy);
169: window_choose_redraw_screen(wp);
170: }
171:
1.12 nicm 172: /* ARGSUSED */
1.1 nicm 173: void
1.16 ! nicm 174: window_choose_key(struct window_pane *wp, unused struct session *sess, int key)
1.1 nicm 175: {
176: struct window_choose_mode_data *data = wp->modedata;
177: struct screen *s = &data->screen;
178: struct screen_write_ctx ctx;
179: struct window_choose_mode_item *item;
1.11 nicm 180: u_int items;
181: int idx;
1.1 nicm 182:
183: items = ARRAY_LENGTH(&data->list);
184:
185: switch (mode_key_lookup(&data->mdata, key)) {
1.5 nicm 186: case MODEKEYCHOICE_CANCEL:
1.3 nicm 187: data->callbackfn(data->data, -1);
1.1 nicm 188: window_pane_reset_mode(wp);
189: break;
1.5 nicm 190: case MODEKEYCHOICE_CHOOSE:
1.1 nicm 191: item = &ARRAY_ITEM(&data->list, data->selected);
1.3 nicm 192: data->callbackfn(data->data, item->idx);
1.1 nicm 193: window_pane_reset_mode(wp);
194: break;
1.5 nicm 195: case MODEKEYCHOICE_UP:
1.1 nicm 196: if (items == 0)
197: break;
198: if (data->selected == 0) {
199: data->selected = items - 1;
200: if (data->selected > screen_size_y(s) - 1)
201: data->top = items - screen_size_y(s);
202: window_choose_redraw_screen(wp);
203: break;
204: }
205: data->selected--;
206: if (data->selected < data->top)
207: window_choose_scroll_up(wp);
208: else {
209: screen_write_start(&ctx, wp, NULL);
210: window_choose_write_line(
211: wp, &ctx, data->selected - data->top);
212: window_choose_write_line(
213: wp, &ctx, data->selected + 1 - data->top);
214: screen_write_stop(&ctx);
215: }
216: break;
1.5 nicm 217: case MODEKEYCHOICE_DOWN:
1.1 nicm 218: if (items == 0)
219: break;
220: if (data->selected == items - 1) {
221: data->selected = 0;
222: data->top = 0;
223: window_choose_redraw_screen(wp);
224: break;
225: }
226: data->selected++;
1.5 nicm 227:
1.15 nicm 228: if (data->selected < data->top + screen_size_y(s)) {
1.1 nicm 229: screen_write_start(&ctx, wp, NULL);
230: window_choose_write_line(
231: wp, &ctx, data->selected - data->top);
232: window_choose_write_line(
233: wp, &ctx, data->selected - 1 - data->top);
234: screen_write_stop(&ctx);
1.15 nicm 235: } else
236: window_choose_scroll_down(wp);
237: break;
238: case MODEKEYCHOICE_SCROLLUP:
239: if (items == 0 || data->top == 0)
240: break;
241: if (data->selected == data->top + screen_size_y(s) - 1) {
242: data->selected--;
243: window_choose_scroll_up(wp);
244: screen_write_start(&ctx, wp, NULL);
245: window_choose_write_line(
246: wp, &ctx, screen_size_y(s) - 1);
247: screen_write_stop(&ctx);
248: } else
249: window_choose_scroll_up(wp);
250: break;
251: case MODEKEYCHOICE_SCROLLDOWN:
252: if (items == 0 ||
253: data->top + screen_size_y(&data->screen) >= items)
254: break;
255: if (data->selected == data->top) {
256: data->selected++;
257: window_choose_scroll_down(wp);
258: screen_write_start(&ctx, wp, NULL);
259: window_choose_write_line(wp, &ctx, 0);
260: screen_write_stop(&ctx);
261: } else
262: window_choose_scroll_down(wp);
1.1 nicm 263: break;
1.5 nicm 264: case MODEKEYCHOICE_PAGEUP:
1.1 nicm 265: if (data->selected < screen_size_y(s)) {
266: data->selected = 0;
267: data->top = 0;
268: } else {
269: data->selected -= screen_size_y(s);
270: if (data->top < screen_size_y(s))
271: data->top = 0;
272: else
273: data->top -= screen_size_y(s);
274: }
1.13 nicm 275: window_choose_redraw_screen(wp);
1.1 nicm 276: break;
1.5 nicm 277: case MODEKEYCHOICE_PAGEDOWN:
1.1 nicm 278: data->selected += screen_size_y(s);
279: if (data->selected > items - 1)
280: data->selected = items - 1;
281: data->top += screen_size_y(s);
282: if (screen_size_y(s) < items) {
283: if (data->top + screen_size_y(s) > items)
284: data->top = items - screen_size_y(s);
285: } else
286: data->top = 0;
287: if (data->selected < data->top)
288: data->top = data->selected;
289: window_choose_redraw_screen(wp);
290: break;
291: default:
1.11 nicm 292: idx = window_choose_index_key(data, key);
293: if (idx < 0 || (u_int) idx >= ARRAY_LENGTH(&data->list))
294: break;
295: data->selected = idx;
1.13 nicm 296:
1.11 nicm 297: item = &ARRAY_ITEM(&data->list, data->selected);
298: data->callbackfn(data->data, item->idx);
299: window_pane_reset_mode(wp);
1.1 nicm 300: break;
301: }
302: }
303:
1.12 nicm 304: /* ARGSUSED */
1.1 nicm 305: void
1.10 nicm 306: window_choose_mouse(
1.16 ! nicm 307: struct window_pane *wp, unused struct session *sess, struct mouse_event *m)
1.1 nicm 308: {
309: struct window_choose_mode_data *data = wp->modedata;
310: struct screen *s = &data->screen;
311: struct window_choose_mode_item *item;
312: u_int idx;
313:
1.10 nicm 314: if ((m->b & 3) == 3)
1.1 nicm 315: return;
1.10 nicm 316: if (m->x >= screen_size_x(s))
1.1 nicm 317: return;
1.10 nicm 318: if (m->y >= screen_size_y(s))
1.1 nicm 319: return;
320:
1.10 nicm 321: idx = data->top + m->y;
1.1 nicm 322: if (idx >= ARRAY_LENGTH(&data->list))
323: return;
324: data->selected = idx;
325:
326: item = &ARRAY_ITEM(&data->list, data->selected);
1.3 nicm 327: data->callbackfn(data->data, item->idx);
1.1 nicm 328: window_pane_reset_mode(wp);
329: }
330:
331: void
332: window_choose_write_line(
333: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
334: {
335: struct window_choose_mode_data *data = wp->modedata;
336: struct window_choose_mode_item *item;
1.9 nicm 337: struct options *oo = &wp->window->options;
1.1 nicm 338: struct screen *s = &data->screen;
339: struct grid_cell gc;
1.14 nicm 340: int utf8flag, key;
1.1 nicm 341:
1.3 nicm 342: if (data->callbackfn == NULL)
1.1 nicm 343: fatalx("called before callback assigned");
344:
1.2 nicm 345: utf8flag = options_get_number(&wp->window->options, "utf8");
1.1 nicm 346: memcpy(&gc, &grid_default_cell, sizeof gc);
347: if (data->selected == data->top + py) {
1.9 nicm 348: colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
349: colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
350: gc.attr |= options_get_number(oo, "mode-attr");
1.1 nicm 351: }
352:
353: screen_write_cursormove(ctx, 0, py);
354: if (data->top + py < ARRAY_LENGTH(&data->list)) {
355: item = &ARRAY_ITEM(&data->list, data->top + py);
1.11 nicm 356: key = window_choose_key_index(data, data->top + py);
357: if (key != -1) {
358: screen_write_nputs(ctx, screen_size_x(s) - 1,
359: &gc, utf8flag, "(%c) %s", key, item->name);
360: } else {
361: screen_write_nputs(ctx, screen_size_x(s) - 1,
362: &gc, utf8flag, " %s", item->name);
363: }
364:
1.1 nicm 365: }
366: while (s->cx < screen_size_x(s))
367: screen_write_putc(ctx, &gc, ' ');
1.11 nicm 368: }
369:
370: int
371: window_choose_key_index(struct window_choose_mode_data *data, u_int idx)
372: {
373: static const char keys[] = "0123456789abcdefghijklmnopqrstuvwxyz";
374: const char *ptr;
375: int mkey;
376:
377: for (ptr = keys; *ptr != '\0'; ptr++) {
378: mkey = mode_key_lookup(&data->mdata, *ptr);
379: if (mkey != MODEKEY_NONE && mkey != MODEKEY_OTHER)
380: continue;
381: if (idx-- == 0)
382: return (*ptr);
383: }
384: return (-1);
385: }
386:
387: int
388: window_choose_index_key(struct window_choose_mode_data *data, int key)
389: {
390: static const char keys[] = "0123456789abcdefghijklmnopqrstuvwxyz";
391: const char *ptr;
392: int mkey;
393: u_int idx = 0;
394:
395: for (ptr = keys; *ptr != '\0'; ptr++) {
396: mkey = mode_key_lookup(&data->mdata, *ptr);
397: if (mkey != MODEKEY_NONE && mkey != MODEKEY_OTHER)
398: continue;
399: if (key == *ptr)
400: return (idx);
401: idx++;
402: }
403: return (-1);
1.1 nicm 404: }
405:
406: void
407: window_choose_redraw_screen(struct window_pane *wp)
408: {
409: struct window_choose_mode_data *data = wp->modedata;
410: struct screen *s = &data->screen;
411: struct screen_write_ctx ctx;
412: u_int i;
413:
414: screen_write_start(&ctx, wp, NULL);
415: for (i = 0; i < screen_size_y(s); i++)
416: window_choose_write_line(wp, &ctx, i);
417: screen_write_stop(&ctx);
418: }
419:
420: void
421: window_choose_scroll_up(struct window_pane *wp)
422: {
423: struct window_choose_mode_data *data = wp->modedata;
424: struct screen_write_ctx ctx;
425:
426: if (data->top == 0)
427: return;
428: data->top--;
429:
430: screen_write_start(&ctx, wp, NULL);
431: screen_write_cursormove(&ctx, 0, 0);
432: screen_write_insertline(&ctx, 1);
433: window_choose_write_line(wp, &ctx, 0);
434: if (screen_size_y(&data->screen) > 1)
435: window_choose_write_line(wp, &ctx, 1);
436: screen_write_stop(&ctx);
437: }
438:
439: void
440: window_choose_scroll_down(struct window_pane *wp)
441: {
442: struct window_choose_mode_data *data = wp->modedata;
443: struct screen *s = &data->screen;
444: struct screen_write_ctx ctx;
445:
446: if (data->top >= ARRAY_LENGTH(&data->list))
447: return;
448: data->top++;
449:
450: screen_write_start(&ctx, wp, NULL);
451: screen_write_cursormove(&ctx, 0, 0);
452: screen_write_deleteline(&ctx, 1);
453: window_choose_write_line(wp, &ctx, screen_size_y(s) - 1);
454: if (screen_size_y(&data->screen) > 1)
455: window_choose_write_line(wp, &ctx, screen_size_y(s) - 2);
456: screen_write_stop(&ctx);
457: }
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