1 f5e234d6 2018-05-18 omar.polo /* mymenu -- simple dmenu alternative */
3 f5e234d6 2018-05-18 omar.polo /* Copyright (C) 2018 Omar Polo <omar.polo@europecom.net>
5 f5e234d6 2018-05-18 omar.polo * This program is free software: you can redistribute it and/or modify
6 f5e234d6 2018-05-18 omar.polo * it under the terms of the GNU General Public License as published by
7 f5e234d6 2018-05-18 omar.polo * the Free Software Foundation, either version 3 of the License, or
8 f5e234d6 2018-05-18 omar.polo * (at your option) any later version.
10 f5e234d6 2018-05-18 omar.polo * This program is distributed in the hope that it will be useful,
11 f5e234d6 2018-05-18 omar.polo * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 f5e234d6 2018-05-18 omar.polo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 f5e234d6 2018-05-18 omar.polo * GNU General Public License for more details.
15 f5e234d6 2018-05-18 omar.polo * You should have received a copy of the GNU General Public License
16 f5e234d6 2018-05-18 omar.polo * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 f5e234d6 2018-05-18 omar.polo #include <stdio.h>
20 f5e234d6 2018-05-18 omar.polo #include <stdlib.h>
21 f5e234d6 2018-05-18 omar.polo #include <string.h> // strdup, strnlen, ...
22 f5e234d6 2018-05-18 omar.polo #include <ctype.h> // isalnum
23 f5e234d6 2018-05-18 omar.polo #include <locale.h> // setlocale
24 f5e234d6 2018-05-18 omar.polo #include <unistd.h>
25 f5e234d6 2018-05-18 omar.polo #include <sysexits.h>
26 f5e234d6 2018-05-18 omar.polo #include <stdbool.h>
27 f5e234d6 2018-05-18 omar.polo #include <limits.h>
28 f5e234d6 2018-05-18 omar.polo #include <errno.h>
30 f5e234d6 2018-05-18 omar.polo #include <X11/Xlib.h>
31 f5e234d6 2018-05-18 omar.polo #include <X11/Xutil.h> // XLookupString
32 f5e234d6 2018-05-18 omar.polo #include <X11/Xresource.h>
33 f5e234d6 2018-05-18 omar.polo #include <X11/Xcms.h> // colors
34 347d23da 2018-05-19 omar.polo #include <X11/keysym.h>
36 f5e234d6 2018-05-18 omar.polo #ifdef USE_XINERAMA
37 f5e234d6 2018-05-18 omar.polo # include <X11/extensions/Xinerama.h>
40 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
41 c9a3bfaa 2018-05-21 omar.polo # include <X11/Xft/Xft.h>
44 f5e234d6 2018-05-18 omar.polo #define nil NULL
45 347d23da 2018-05-19 omar.polo #define resname "MyMenu"
46 347d23da 2018-05-19 omar.polo #define resclass "mymenu"
48 f5e234d6 2018-05-18 omar.polo #define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
49 f5e234d6 2018-05-18 omar.polo #define MAX(a, b) ((a) > (b) ? (a) : (b))
50 f5e234d6 2018-05-18 omar.polo #define OVERLAP(a,b,c,d) (((a)==(c) && (b)==(d)) || MIN((a)+(b), (c)+(d)) - MAX((a), (c)) > 0)
51 f5e234d6 2018-05-18 omar.polo #define INTERSECT(x,y,w,h,x1,y1,w1,h1) (OVERLAP((x),(w),(x1),(w1)) && OVERLAP((y),(h),(y1),(h1)))
53 f5e234d6 2018-05-18 omar.polo #define update_completions(cs, text, lines) { \
54 f5e234d6 2018-05-18 omar.polo compl_delete(cs); \
55 f5e234d6 2018-05-18 omar.polo cs = filter(text, lines); \
58 f5e234d6 2018-05-18 omar.polo // TODO: dynamic?
59 95b27a5e 2018-05-19 omar.polo #define INITIAL_ITEMS 64
61 f5e234d6 2018-05-18 omar.polo #define TODO(s) { \
62 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "TODO! " s "\n"); \
65 f5e234d6 2018-05-18 omar.polo #define cannot_allocate_memory { \
66 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory\n"); \
67 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE); \
70 f5e234d6 2018-05-18 omar.polo #define check_allocation(a) { \
71 f5e234d6 2018-05-18 omar.polo if (a == nil) \
72 f5e234d6 2018-05-18 omar.polo cannot_allocate_memory; \
75 f5e234d6 2018-05-18 omar.polo enum state {LOOPING, OK, ERR};
77 c9a3bfaa 2018-05-21 omar.polo enum text_type {PROMPT, COMPL, COMPL_HIGH};
79 f5e234d6 2018-05-18 omar.polo struct rendering {
80 f5e234d6 2018-05-18 omar.polo Display *d;
81 f5e234d6 2018-05-18 omar.polo Window w;
82 f5e234d6 2018-05-18 omar.polo GC prompt;
83 f5e234d6 2018-05-18 omar.polo GC prompt_bg;
84 f5e234d6 2018-05-18 omar.polo GC completion;
85 f5e234d6 2018-05-18 omar.polo GC completion_bg;
86 f5e234d6 2018-05-18 omar.polo GC completion_highlighted;
87 f5e234d6 2018-05-18 omar.polo GC completion_highlighted_bg;
88 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
89 c9a3bfaa 2018-05-21 omar.polo XftDraw *xftdraw;
90 c9a3bfaa 2018-05-21 omar.polo XftColor xft_prompt;
91 c9a3bfaa 2018-05-21 omar.polo XftColor xft_completion;
92 c9a3bfaa 2018-05-21 omar.polo XftColor xft_completion_highlighted;
93 c9a3bfaa 2018-05-21 omar.polo XftFont *font;
95 c9a3bfaa 2018-05-21 omar.polo XFontSet *font;
97 f5e234d6 2018-05-18 omar.polo int width;
98 f5e234d6 2018-05-18 omar.polo int height;
99 36a15a9f 2018-05-19 omar.polo bool horizontal_layout;
100 8758854a 2018-05-20 omar.polo char *ps1;
101 8758854a 2018-05-20 omar.polo int ps1len;
104 f5e234d6 2018-05-18 omar.polo struct completions {
105 f5e234d6 2018-05-18 omar.polo char *completion;
106 f5e234d6 2018-05-18 omar.polo bool selected;
107 f5e234d6 2018-05-18 omar.polo struct completions *next;
110 f5e234d6 2018-05-18 omar.polo struct completions *compl_new() {
111 f5e234d6 2018-05-18 omar.polo struct completions *c = malloc(sizeof(struct completions));
113 f5e234d6 2018-05-18 omar.polo if (c == nil)
114 f5e234d6 2018-05-18 omar.polo return c;
116 f5e234d6 2018-05-18 omar.polo c->completion = nil;
117 f5e234d6 2018-05-18 omar.polo c->selected = false;
118 f5e234d6 2018-05-18 omar.polo c->next = nil;
119 f5e234d6 2018-05-18 omar.polo return c;
122 f5e234d6 2018-05-18 omar.polo void compl_delete(struct completions *c) {
123 f5e234d6 2018-05-18 omar.polo free(c);
126 347d23da 2018-05-19 omar.polo struct completions *compl_select_next(struct completions *c, bool n) {
127 347d23da 2018-05-19 omar.polo if (c == nil)
128 347d23da 2018-05-19 omar.polo return nil;
129 347d23da 2018-05-19 omar.polo if (n) {
130 347d23da 2018-05-19 omar.polo c->selected = true;
131 347d23da 2018-05-19 omar.polo return c;
134 347d23da 2018-05-19 omar.polo struct completions *orig = c;
135 347d23da 2018-05-19 omar.polo while (c != nil) {
136 347d23da 2018-05-19 omar.polo if (c->selected) {
137 347d23da 2018-05-19 omar.polo c->selected = false;
138 347d23da 2018-05-19 omar.polo if (c->next != nil) {
139 347d23da 2018-05-19 omar.polo // the current one is selected and the next one exists
140 347d23da 2018-05-19 omar.polo c->next->selected = true;
141 347d23da 2018-05-19 omar.polo return c->next;
142 347d23da 2018-05-19 omar.polo } else {
143 347d23da 2018-05-19 omar.polo // the current one is selected and the next one is nill,
144 347d23da 2018-05-19 omar.polo // select the first one
145 347d23da 2018-05-19 omar.polo orig->selected = true;
146 347d23da 2018-05-19 omar.polo return orig;
149 347d23da 2018-05-19 omar.polo c = c->next;
151 347d23da 2018-05-19 omar.polo return nil;
154 347d23da 2018-05-19 omar.polo struct completions *compl_select_prev(struct completions *c, bool n) {
155 347d23da 2018-05-19 omar.polo if (c == nil)
156 347d23da 2018-05-19 omar.polo return nil;
158 347d23da 2018-05-19 omar.polo struct completions *cc = c;
160 347d23da 2018-05-19 omar.polo if (n) // select the last one
161 347d23da 2018-05-19 omar.polo while (cc != nil) {
162 347d23da 2018-05-19 omar.polo if (cc->next == nil) {
163 347d23da 2018-05-19 omar.polo cc->selected = true;
164 347d23da 2018-05-19 omar.polo return cc;
166 347d23da 2018-05-19 omar.polo cc = cc->next;
168 347d23da 2018-05-19 omar.polo else // select the previous one
169 347d23da 2018-05-19 omar.polo while (cc != nil) {
170 347d23da 2018-05-19 omar.polo if (cc->next != nil && cc->next->selected) {
171 347d23da 2018-05-19 omar.polo cc->next->selected = false;
172 347d23da 2018-05-19 omar.polo cc->selected = true;
173 347d23da 2018-05-19 omar.polo return cc;
175 347d23da 2018-05-19 omar.polo cc = cc->next;
178 347d23da 2018-05-19 omar.polo return nil;
181 f5e234d6 2018-05-18 omar.polo struct completions *filter(char *text, char **lines) {
182 f5e234d6 2018-05-18 omar.polo int i = 0;
183 f5e234d6 2018-05-18 omar.polo struct completions *root = compl_new();
184 f5e234d6 2018-05-18 omar.polo struct completions *c = root;
186 f5e234d6 2018-05-18 omar.polo for (;;) {
187 f5e234d6 2018-05-18 omar.polo char *l = lines[i];
188 f5e234d6 2018-05-18 omar.polo if (l == nil)
189 f5e234d6 2018-05-18 omar.polo break;
191 f5e234d6 2018-05-18 omar.polo if (strstr(l, text) != nil) {
192 f5e234d6 2018-05-18 omar.polo c->next = compl_new();
193 f5e234d6 2018-05-18 omar.polo c = c->next;
194 f5e234d6 2018-05-18 omar.polo c->completion = l;
200 f5e234d6 2018-05-18 omar.polo struct completions *r = root->next;
201 f5e234d6 2018-05-18 omar.polo compl_delete(root);
202 f5e234d6 2018-05-18 omar.polo return r;
205 f5e234d6 2018-05-18 omar.polo // push the character c at the end of the string pointed by p
206 f5e234d6 2018-05-18 omar.polo int pushc(char **p, int maxlen, char c) {
207 f5e234d6 2018-05-18 omar.polo int len = strnlen(*p, maxlen);
209 f5e234d6 2018-05-18 omar.polo if (!(len < maxlen -2)) {
210 f5e234d6 2018-05-18 omar.polo maxlen += maxlen >> 1;
211 f5e234d6 2018-05-18 omar.polo char *newptr = realloc(*p, maxlen);
212 f5e234d6 2018-05-18 omar.polo if (newptr == nil) { // bad!
213 f5e234d6 2018-05-18 omar.polo return -1;
215 f5e234d6 2018-05-18 omar.polo *p = newptr;
218 f5e234d6 2018-05-18 omar.polo (*p)[len] = c;
219 f5e234d6 2018-05-18 omar.polo (*p)[len+1] = '\0';
220 f5e234d6 2018-05-18 omar.polo return maxlen;
223 347d23da 2018-05-19 omar.polo int utf8strnlen(char *s, int maxlen) {
224 347d23da 2018-05-19 omar.polo int len = 0;
225 347d23da 2018-05-19 omar.polo while (*s && maxlen > 0) {
226 347d23da 2018-05-19 omar.polo len += (*s++ & 0xc0) != 0x80;
227 347d23da 2018-05-19 omar.polo maxlen--;
229 347d23da 2018-05-19 omar.polo return len;
232 347d23da 2018-05-19 omar.polo // remove the last *glyph* from the *utf8* string!
233 347d23da 2018-05-19 omar.polo // this is different from just setting the last byte to 0 (in some
234 347d23da 2018-05-19 omar.polo // cases ofc). The actual implementation is quite inefficient because
235 347d23da 2018-05-19 omar.polo // it remove the last char until the number of glyphs doesn't change
236 f5e234d6 2018-05-18 omar.polo void popc(char *p, int maxlen) {
237 f5e234d6 2018-05-18 omar.polo int len = strnlen(p, maxlen);
239 347d23da 2018-05-19 omar.polo if (len == 0)
240 347d23da 2018-05-19 omar.polo return;
242 347d23da 2018-05-19 omar.polo int ulen = utf8strnlen(p, maxlen);
243 347d23da 2018-05-19 omar.polo while (len > 0 && utf8strnlen(p, maxlen) == ulen) {
244 347d23da 2018-05-19 omar.polo len--;
245 347d23da 2018-05-19 omar.polo p[len] = 0;
249 8758854a 2018-05-20 omar.polo // If the string is surrounded by quotes (`"`) remove them and replace
250 8758854a 2018-05-20 omar.polo // every `\"` in the string with `"`
251 8758854a 2018-05-20 omar.polo char *normalize_str(const char *str) {
252 8758854a 2018-05-20 omar.polo int len = strlen(str);
253 8758854a 2018-05-20 omar.polo if (len == 0)
254 8758854a 2018-05-20 omar.polo return nil;
256 8758854a 2018-05-20 omar.polo char *s = calloc(len, sizeof(char));
257 8758854a 2018-05-20 omar.polo check_allocation(s);
258 8758854a 2018-05-20 omar.polo int p = 0;
259 8758854a 2018-05-20 omar.polo while (*str) {
260 8758854a 2018-05-20 omar.polo char c = *str;
261 8758854a 2018-05-20 omar.polo if (*str == '\\') {
262 8758854a 2018-05-20 omar.polo if (*(str + 1)) {
263 8758854a 2018-05-20 omar.polo s[p] = *(str + 1);
265 8758854a 2018-05-20 omar.polo str += 2; // skip this and the next char
266 8758854a 2018-05-20 omar.polo continue;
267 8758854a 2018-05-20 omar.polo } else {
268 8758854a 2018-05-20 omar.polo break;
271 8758854a 2018-05-20 omar.polo if (c == '"') {
272 8758854a 2018-05-20 omar.polo str++; // skip only this char
273 8758854a 2018-05-20 omar.polo continue;
275 8758854a 2018-05-20 omar.polo s[p] = c;
277 8758854a 2018-05-20 omar.polo str++;
279 8758854a 2018-05-20 omar.polo return s;
282 f5e234d6 2018-05-18 omar.polo // read an arbitrary long line from stdin and return a pointer to it
283 f5e234d6 2018-05-18 omar.polo // TODO: resize the allocated memory to exactly fit the string once
284 f5e234d6 2018-05-18 omar.polo // read?
285 f5e234d6 2018-05-18 omar.polo char *readline(bool *eof) {
286 f5e234d6 2018-05-18 omar.polo int maxlen = 8;
287 f5e234d6 2018-05-18 omar.polo char *str = calloc(maxlen, sizeof(char));
288 f5e234d6 2018-05-18 omar.polo if (str == nil) {
289 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Cannot allocate memory!\n");
290 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
293 f5e234d6 2018-05-18 omar.polo int c;
294 f5e234d6 2018-05-18 omar.polo while((c = getchar()) != EOF) {
295 f5e234d6 2018-05-18 omar.polo if (c == '\n')
296 f5e234d6 2018-05-18 omar.polo return str;
298 f5e234d6 2018-05-18 omar.polo maxlen = pushc(&str, maxlen, c);
300 f5e234d6 2018-05-18 omar.polo if (maxlen == -1) {
301 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Cannot allocate memory!\n");
302 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
305 f5e234d6 2018-05-18 omar.polo *eof = true;
306 f5e234d6 2018-05-18 omar.polo return str;
309 95b27a5e 2018-05-19 omar.polo int readlines (char ***lns, int items) {
310 f5e234d6 2018-05-18 omar.polo bool finished = false;
311 f5e234d6 2018-05-18 omar.polo int n = 0;
312 95b27a5e 2018-05-19 omar.polo char **lines = *lns;
313 95b27a5e 2018-05-19 omar.polo while (true) {
314 f5e234d6 2018-05-18 omar.polo lines[n] = readline(&finished);
316 6da98882 2018-05-20 omar.polo if (strlen(lines[n]) == 0 || lines[n][0] == '\n') {
317 6da98882 2018-05-20 omar.polo free(lines[n]);
318 f5e234d6 2018-05-18 omar.polo --n; // forget about this line
321 f5e234d6 2018-05-18 omar.polo if (finished)
322 f5e234d6 2018-05-18 omar.polo break;
326 95b27a5e 2018-05-19 omar.polo if (n == items - 1) {
327 95b27a5e 2018-05-19 omar.polo items += items >>1;
328 95b27a5e 2018-05-19 omar.polo char **l = realloc(lines, sizeof(char*) * items);
329 95b27a5e 2018-05-19 omar.polo check_allocation(l);
330 95b27a5e 2018-05-19 omar.polo *lns = l;
331 95b27a5e 2018-05-19 omar.polo lines = l;
336 f5e234d6 2018-05-18 omar.polo lines[n] = nil;
337 95b27a5e 2018-05-19 omar.polo return items;
340 c9a3bfaa 2018-05-21 omar.polo int text_extents(char *str, int len, struct rendering *r, int *ret_width, int *ret_height) {
341 c9a3bfaa 2018-05-21 omar.polo int height;
342 c9a3bfaa 2018-05-21 omar.polo int width;
343 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
344 c9a3bfaa 2018-05-21 omar.polo XGlyphInfo gi;
345 c9a3bfaa 2018-05-21 omar.polo XftTextExtentsUtf8(r->d, r->font, str, len, &gi);
346 c9a3bfaa 2018-05-21 omar.polo height = (r->font->ascent - r->font->descent)/2;
347 c9a3bfaa 2018-05-21 omar.polo width = gi.width - gi.x;
349 c9a3bfaa 2018-05-21 omar.polo XRectangle rect;
350 c9a3bfaa 2018-05-21 omar.polo XmbTextExtents(*r->font, str, len, nil, &rect);
351 c9a3bfaa 2018-05-21 omar.polo height = rect.height;
352 c9a3bfaa 2018-05-21 omar.polo width = rect.width;
353 c9a3bfaa 2018-05-21 omar.polo #endif
354 c9a3bfaa 2018-05-21 omar.polo if (ret_width != nil) *ret_width = width;
355 c9a3bfaa 2018-05-21 omar.polo if (ret_height != nil) *ret_height = height;
356 c9a3bfaa 2018-05-21 omar.polo return width;
359 c9a3bfaa 2018-05-21 omar.polo void draw_string(char *str, int len, int x, int y, struct rendering *r, enum text_type tt) {
360 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
361 c9a3bfaa 2018-05-21 omar.polo XftColor xftcolor;
362 c9a3bfaa 2018-05-21 omar.polo if (tt == PROMPT) xftcolor = r->xft_prompt;
363 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL) xftcolor = r->xft_completion;
364 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL_HIGH) xftcolor = r->xft_completion_highlighted;
366 c9a3bfaa 2018-05-21 omar.polo XftDrawStringUtf8(r->xftdraw, &xftcolor, r->font, x, y, str, len);
368 c9a3bfaa 2018-05-21 omar.polo GC gc;
369 c9a3bfaa 2018-05-21 omar.polo if (tt == PROMPT) gc = r->prompt;
370 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL) gc = r->completion;
371 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL_HIGH) gc = r->completion_highlighted;
372 c9a3bfaa 2018-05-21 omar.polo Xutf8DrawString(r->d, r->w, *r->font, gc, x, y, str, len);
373 c9a3bfaa 2018-05-21 omar.polo #endif
376 c9a3bfaa 2018-05-21 omar.polo char *strdupn(char *str) {
377 c9a3bfaa 2018-05-21 omar.polo int len = strlen(str);
379 c9a3bfaa 2018-05-21 omar.polo if (str == nil || len == 0)
380 c9a3bfaa 2018-05-21 omar.polo return nil;
382 c9a3bfaa 2018-05-21 omar.polo char *dup = strdup(str);
383 c9a3bfaa 2018-05-21 omar.polo if (dup == nil)
384 c9a3bfaa 2018-05-21 omar.polo return nil;
386 c9a3bfaa 2018-05-21 omar.polo for (int i = 0; i < len; ++i)
387 c9a3bfaa 2018-05-21 omar.polo if (dup[i] == ' ')
388 c9a3bfaa 2018-05-21 omar.polo dup[i] = 'n';
390 c9a3bfaa 2018-05-21 omar.polo return dup;
393 f5e234d6 2018-05-18 omar.polo // |------------------|----------------------------------------------|
394 f5e234d6 2018-05-18 omar.polo // | 20 char text | completion | completion | completion | compl |
395 f5e234d6 2018-05-18 omar.polo // |------------------|----------------------------------------------|
396 36a15a9f 2018-05-19 omar.polo void draw_horizontally(struct rendering *r, char *text, struct completions *cs) {
397 f5e234d6 2018-05-18 omar.polo // TODO: make these dynamic?
398 f5e234d6 2018-05-18 omar.polo int prompt_width = 20; // char
399 f5e234d6 2018-05-18 omar.polo int padding = 10;
401 c9a3bfaa 2018-05-21 omar.polo int width, height;
402 c9a3bfaa 2018-05-21 omar.polo char *ps1_dup = strdupn(r->ps1);
403 c9a3bfaa 2018-05-21 omar.polo ps1_dup = ps1_dup == nil ? r->ps1 : ps1_dup;
404 c9a3bfaa 2018-05-21 omar.polo int ps1xlen = text_extents(ps1_dup, r->ps1len, r, &width, &height);
405 c9a3bfaa 2018-05-21 omar.polo free(ps1_dup);
406 8758854a 2018-05-20 omar.polo int start_at = ps1xlen;
408 c9a3bfaa 2018-05-21 omar.polo start_at = text_extents("n", 1, r, nil, nil);
409 347d23da 2018-05-19 omar.polo start_at = start_at * prompt_width + padding;
411 c9a3bfaa 2018-05-21 omar.polo int texty = (height + r->height) >>1;
413 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, r->prompt_bg, 0, 0, start_at, r->height);
415 f5e234d6 2018-05-18 omar.polo int text_len = strlen(text);
416 f5e234d6 2018-05-18 omar.polo if (text_len > prompt_width)
417 f5e234d6 2018-05-18 omar.polo text = text + (text_len - prompt_width);
418 c9a3bfaa 2018-05-21 omar.polo draw_string(r->ps1, r->ps1len, padding, texty, r, PROMPT);
419 c9a3bfaa 2018-05-21 omar.polo draw_string(text, MIN(text_len, prompt_width), padding + ps1xlen, texty, r, PROMPT);
421 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, r->completion_bg, start_at, 0, r->width, r->height);
423 f5e234d6 2018-05-18 omar.polo while (cs != nil) {
424 c9a3bfaa 2018-05-21 omar.polo enum text_type tt = cs->selected ? COMPL_HIGH : COMPL;
425 f5e234d6 2018-05-18 omar.polo GC h = cs->selected ? r->completion_highlighted_bg : r->completion_bg;
427 f5e234d6 2018-05-18 omar.polo int len = strlen(cs->completion);
428 c9a3bfaa 2018-05-21 omar.polo int text_width = text_extents(cs->completion, len, r, nil, nil);
430 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, h, start_at, 0, text_width + padding*2, r->height);
432 c9a3bfaa 2018-05-21 omar.polo draw_string(cs->completion, len, start_at + padding, texty, r, tt);
434 f5e234d6 2018-05-18 omar.polo start_at += text_width + padding * 2;
436 0ee198aa 2018-05-19 omar.polo if (start_at > r->width)
437 0ee198aa 2018-05-19 omar.polo break; // don't draw completion if the space isn't enough
439 f5e234d6 2018-05-18 omar.polo cs = cs->next;
442 f5e234d6 2018-05-18 omar.polo XFlush(r->d);
445 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
446 36a15a9f 2018-05-19 omar.polo // | prompt |
447 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
448 36a15a9f 2018-05-19 omar.polo // | completion |
449 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
450 36a15a9f 2018-05-19 omar.polo // | completion |
451 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
452 36a15a9f 2018-05-19 omar.polo // TODO: dunno why but in the call to Xutf8DrawString, by logic,
453 36a15a9f 2018-05-19 omar.polo // should be padding and not padding*2, but the text doesn't seem to
454 36a15a9f 2018-05-19 omar.polo // be vertically centered otherwise....
455 36a15a9f 2018-05-19 omar.polo void draw_vertically(struct rendering *r, char *text, struct completions *cs) {
456 36a15a9f 2018-05-19 omar.polo int padding = 10; // TODO make this dynamic
458 c9a3bfaa 2018-05-21 omar.polo int height, width;
459 c9a3bfaa 2018-05-21 omar.polo text_extents("fjpgl", 5, r, &width, &height);
460 c9a3bfaa 2018-05-21 omar.polo int start_at = height + padding*2;
462 36a15a9f 2018-05-19 omar.polo XFillRectangle(r->d, r->w, r->completion_bg, 0, 0, r->width, r->height);
463 36a15a9f 2018-05-19 omar.polo XFillRectangle(r->d, r->w, r->prompt_bg, 0, 0, r->width, start_at);
465 c9a3bfaa 2018-05-21 omar.polo char *ps1_dup = strdupn(r->ps1);
466 c9a3bfaa 2018-05-21 omar.polo ps1_dup = ps1_dup == nil ? r->ps1 : ps1_dup;
467 c9a3bfaa 2018-05-21 omar.polo int ps1xlen = text_extents(ps1_dup, r->ps1len, r, nil, nil);
468 c9a3bfaa 2018-05-21 omar.polo free(ps1_dup);
470 c9a3bfaa 2018-05-21 omar.polo draw_string(r->ps1, r->ps1len, padding, padding*2, r, PROMPT);
471 c9a3bfaa 2018-05-21 omar.polo draw_string(text, strlen(text), padding + ps1xlen, padding*2, r, PROMPT);
473 36a15a9f 2018-05-19 omar.polo while (cs != nil) {
474 c9a3bfaa 2018-05-21 omar.polo enum text_type tt = cs->selected ? COMPL_HIGH : COMPL;
475 36a15a9f 2018-05-19 omar.polo GC h = cs->selected ? r->completion_highlighted_bg : r->completion_bg;
477 36a15a9f 2018-05-19 omar.polo int len = strlen(cs->completion);
478 c9a3bfaa 2018-05-21 omar.polo text_extents(cs->completion, len, r, &width, &height);
479 c9a3bfaa 2018-05-21 omar.polo XFillRectangle(r->d, r->w, h, 0, start_at, r->width, height + padding*2);
480 c9a3bfaa 2018-05-21 omar.polo draw_string(cs->completion, len, padding, start_at + padding*2, r, tt);
482 c9a3bfaa 2018-05-21 omar.polo start_at += height + padding *2;
484 0ee198aa 2018-05-19 omar.polo if (start_at > r->height)
485 0ee198aa 2018-05-19 omar.polo break; // don't draw completion if the space isn't enough
487 36a15a9f 2018-05-19 omar.polo cs = cs->next;
490 36a15a9f 2018-05-19 omar.polo XFlush(r->d);
493 36a15a9f 2018-05-19 omar.polo void draw(struct rendering *r, char *text, struct completions *cs) {
494 36a15a9f 2018-05-19 omar.polo if (r->horizontal_layout)
495 36a15a9f 2018-05-19 omar.polo draw_horizontally(r, text, cs);
497 36a15a9f 2018-05-19 omar.polo draw_vertically(r, text, cs);
500 f5e234d6 2018-05-18 omar.polo /* Set some WM stuff */
501 f5e234d6 2018-05-18 omar.polo void set_win_atoms_hints(Display *d, Window w, int width, int height) {
502 f5e234d6 2018-05-18 omar.polo Atom type;
503 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_WINDOW_TYPE_DOCK", false);
504 f5e234d6 2018-05-18 omar.polo XChangeProperty(
507 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_WINDOW_TYPE", false),
508 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
510 f5e234d6 2018-05-18 omar.polo PropModeReplace,
511 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
515 f5e234d6 2018-05-18 omar.polo /* some window managers honor this properties */
516 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_STATE_ABOVE", false);
517 f5e234d6 2018-05-18 omar.polo XChangeProperty(d,
519 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_STATE", false),
520 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
522 f5e234d6 2018-05-18 omar.polo PropModeReplace,
523 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
527 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_STATE_FOCUSED", false);
528 f5e234d6 2018-05-18 omar.polo XChangeProperty(d,
530 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_STATE", false),
531 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
533 f5e234d6 2018-05-18 omar.polo PropModeAppend,
534 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
538 f5e234d6 2018-05-18 omar.polo // setting window hints
539 f5e234d6 2018-05-18 omar.polo XClassHint *class_hint = XAllocClassHint();
540 f5e234d6 2018-05-18 omar.polo if (class_hint == nil) {
541 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory for class hint\n");
542 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
544 f5e234d6 2018-05-18 omar.polo class_hint->res_name = "mymenu";
545 f5e234d6 2018-05-18 omar.polo class_hint->res_class = "mymenu";
546 f5e234d6 2018-05-18 omar.polo XSetClassHint(d, w, class_hint);
547 f5e234d6 2018-05-18 omar.polo XFree(class_hint);
549 f5e234d6 2018-05-18 omar.polo XSizeHints *size_hint = XAllocSizeHints();
550 f5e234d6 2018-05-18 omar.polo if (size_hint == nil) {
551 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory for size hint\n");
552 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
554 f5e234d6 2018-05-18 omar.polo size_hint->min_width = width;
555 f5e234d6 2018-05-18 omar.polo size_hint->base_width = width;
556 f5e234d6 2018-05-18 omar.polo size_hint->min_height = height;
557 f5e234d6 2018-05-18 omar.polo size_hint->base_height = height;
559 f5e234d6 2018-05-18 omar.polo XFlush(d);
562 f5e234d6 2018-05-18 omar.polo void get_wh(Display *d, Window *w, int *width, int *height) {
563 f5e234d6 2018-05-18 omar.polo XWindowAttributes win_attr;
564 f5e234d6 2018-05-18 omar.polo XGetWindowAttributes(d, *w, &win_attr);
565 f5e234d6 2018-05-18 omar.polo *height = win_attr.height;
566 f5e234d6 2018-05-18 omar.polo *width = win_attr.width;
569 f5e234d6 2018-05-18 omar.polo // I know this may seem a little hackish BUT is the only way I managed
570 f5e234d6 2018-05-18 omar.polo // to actually grab that goddam keyboard. Only one call to
571 f5e234d6 2018-05-18 omar.polo // XGrabKeyboard does not always end up with the keyboard grabbed!
572 f5e234d6 2018-05-18 omar.polo int take_keyboard(Display *d, Window w) {
573 686e9237 2018-05-18 omar.polo int i;
574 686e9237 2018-05-18 omar.polo for (i = 0; i < 100; i++) {
575 686e9237 2018-05-18 omar.polo if (XGrabKeyboard(d, w, True, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
576 686e9237 2018-05-18 omar.polo return 1;
577 686e9237 2018-05-18 omar.polo usleep(1000);
579 686e9237 2018-05-18 omar.polo return 0;
582 f5e234d6 2018-05-18 omar.polo void release_keyboard(Display *d) {
583 686e9237 2018-05-18 omar.polo XUngrabKeyboard(d, CurrentTime);
586 f5e234d6 2018-05-18 omar.polo int parse_integer(const char *str, int default_value, int max) {
587 f5e234d6 2018-05-18 omar.polo int len = strlen(str);
588 f5e234d6 2018-05-18 omar.polo if (len > 0 && str[len-1] == '%') {
589 f5e234d6 2018-05-18 omar.polo char *cpy = strdup(str);
590 f5e234d6 2018-05-18 omar.polo check_allocation(cpy);
591 f5e234d6 2018-05-18 omar.polo cpy[len-1] = '\0';
592 f5e234d6 2018-05-18 omar.polo int val = parse_integer(cpy, default_value, max);
593 f5e234d6 2018-05-18 omar.polo free(cpy);
594 f5e234d6 2018-05-18 omar.polo return val * max / 100;
597 f5e234d6 2018-05-18 omar.polo errno = 0;
598 f5e234d6 2018-05-18 omar.polo char *ep;
599 f5e234d6 2018-05-18 omar.polo long lval = strtol(str, &ep, 10);
600 f5e234d6 2018-05-18 omar.polo if (str[0] == '\0' || *ep != '\0') { // NaN
601 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "'%s' is not a valid number! Using %d as default.\n", str, default_value);
602 f5e234d6 2018-05-18 omar.polo return default_value;
604 f5e234d6 2018-05-18 omar.polo if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
605 f5e234d6 2018-05-18 omar.polo (lval > INT_MAX || lval < INT_MIN)) {
606 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "%s out of range! Using %d as default.\n", str, default_value);
607 f5e234d6 2018-05-18 omar.polo return default_value;
609 f5e234d6 2018-05-18 omar.polo return lval;
612 f5e234d6 2018-05-18 omar.polo int parse_int_with_middle(const char *str, int default_value, int max, int self) {
613 f5e234d6 2018-05-18 omar.polo if (!strcmp(str, "middle")) {
614 f5e234d6 2018-05-18 omar.polo return (max - self)/2;
616 f5e234d6 2018-05-18 omar.polo return parse_integer(str, default_value, max);
619 f5e234d6 2018-05-18 omar.polo int main() {
620 95b27a5e 2018-05-19 omar.polo char **lines = calloc(INITIAL_ITEMS, sizeof(char*));
621 6da98882 2018-05-20 omar.polo int nlines = readlines(&lines, INITIAL_ITEMS);
623 f5e234d6 2018-05-18 omar.polo setlocale(LC_ALL, getenv("LANG"));
625 f5e234d6 2018-05-18 omar.polo enum state status = LOOPING;
627 f5e234d6 2018-05-18 omar.polo // where the monitor start (used only with xinerama)
628 f5e234d6 2018-05-18 omar.polo int offset_x = 0;
629 f5e234d6 2018-05-18 omar.polo int offset_y = 0;
631 f5e234d6 2018-05-18 omar.polo // width and height of the window
632 f5e234d6 2018-05-18 omar.polo int width = 400;
633 f5e234d6 2018-05-18 omar.polo int height = 20;
635 f5e234d6 2018-05-18 omar.polo // position on the screen
636 f5e234d6 2018-05-18 omar.polo int x = 0;
637 f5e234d6 2018-05-18 omar.polo int y = 0;
639 8758854a 2018-05-20 omar.polo char *ps1 = strdup("$ ");
640 8758854a 2018-05-20 omar.polo check_allocation(ps1);
642 f5e234d6 2018-05-18 omar.polo char *fontname = strdup("fixed");
643 f5e234d6 2018-05-18 omar.polo check_allocation(fontname);
645 f5e234d6 2018-05-18 omar.polo int textlen = 10;
646 f5e234d6 2018-05-18 omar.polo char *text = malloc(textlen * sizeof(char));
647 f5e234d6 2018-05-18 omar.polo check_allocation(text);
649 f5e234d6 2018-05-18 omar.polo struct completions *cs = filter(text, lines);
650 f5e234d6 2018-05-18 omar.polo bool nothing_selected = true;
652 f5e234d6 2018-05-18 omar.polo // start talking to xorg
653 f5e234d6 2018-05-18 omar.polo Display *d = XOpenDisplay(nil);
654 f5e234d6 2018-05-18 omar.polo if (d == nil) {
655 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not open display!\n");
656 f5e234d6 2018-05-18 omar.polo return EX_UNAVAILABLE;
659 f5e234d6 2018-05-18 omar.polo // get display size
660 f5e234d6 2018-05-18 omar.polo // XXX: is getting the default root window dimension correct?
661 f5e234d6 2018-05-18 omar.polo XWindowAttributes xwa;
662 f5e234d6 2018-05-18 omar.polo XGetWindowAttributes(d, DefaultRootWindow(d), &xwa);
663 f5e234d6 2018-05-18 omar.polo int d_width = xwa.width;
664 f5e234d6 2018-05-18 omar.polo int d_height = xwa.height;
666 f5e234d6 2018-05-18 omar.polo #ifdef USE_XINERAMA
667 f5e234d6 2018-05-18 omar.polo // TODO: this bit still needs to be improved
668 f5e234d6 2018-05-18 omar.polo if (XineramaIsActive(d)) {
669 f5e234d6 2018-05-18 omar.polo int monitors;
670 f5e234d6 2018-05-18 omar.polo XineramaScreenInfo *info = XineramaQueryScreens(d, &monitors);
671 f5e234d6 2018-05-18 omar.polo if (info)
672 f5e234d6 2018-05-18 omar.polo for (int i = 0; i < monitors; ++i) {
673 f5e234d6 2018-05-18 omar.polo if (INTERSECT(x, y, 1, 1, info[i].x_org, info[i].y_org, info[i].width, info[i].height)) {
674 f5e234d6 2018-05-18 omar.polo offset_x = info[x].x_org;
675 f5e234d6 2018-05-18 omar.polo offset_y = info[y].y_org;
676 f5e234d6 2018-05-18 omar.polo d_width = info[i].width;
677 f5e234d6 2018-05-18 omar.polo d_height = info[i].height;
680 f5e234d6 2018-05-18 omar.polo XFree(info);
682 f5e234d6 2018-05-18 omar.polo #endif
684 f5e234d6 2018-05-18 omar.polo /* fprintf(stderr, "offset_x:\t%d\n" */
685 f5e234d6 2018-05-18 omar.polo /* "offset_y:\t%d\n" */
686 f5e234d6 2018-05-18 omar.polo /* "d_width:\t%d\n" */
687 f5e234d6 2018-05-18 omar.polo /* "d_height:\t%d\n" */
688 f5e234d6 2018-05-18 omar.polo /* , offset_x, offset_y, d_width, d_height); */
690 f5e234d6 2018-05-18 omar.polo Colormap cmap = DefaultColormap(d, DefaultScreen(d));
691 f5e234d6 2018-05-18 omar.polo XColor p_fg, p_bg,
692 f5e234d6 2018-05-18 omar.polo compl_fg, compl_bg,
693 f5e234d6 2018-05-18 omar.polo compl_highlighted_fg, compl_highlighted_bg;
695 36a15a9f 2018-05-19 omar.polo bool horizontal_layout = true;
697 f5e234d6 2018-05-18 omar.polo // read resource
698 f5e234d6 2018-05-18 omar.polo XrmInitialize();
699 f5e234d6 2018-05-18 omar.polo char *xrm = XResourceManagerString(d);
700 347d23da 2018-05-19 omar.polo XrmDatabase xdb = nil;
701 f5e234d6 2018-05-18 omar.polo if (xrm != nil) {
702 347d23da 2018-05-19 omar.polo xdb = XrmGetStringDatabase(xrm);
703 f5e234d6 2018-05-18 omar.polo XrmValue value;
704 f5e234d6 2018-05-18 omar.polo char *datatype[20];
706 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.font", "*", datatype, &value) == true) {
707 f5e234d6 2018-05-18 omar.polo fontname = strdup(value.addr);
708 f5e234d6 2018-05-18 omar.polo check_allocation(fontname);
711 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no font defined, using %s\n", fontname);
713 36a15a9f 2018-05-19 omar.polo if (XrmGetResource(xdb, "MyMenu.layout", "*", datatype, &value) == true) {
714 36a15a9f 2018-05-19 omar.polo char *v = strdup(value.addr);
715 36a15a9f 2018-05-19 omar.polo check_allocation(v);
716 36a15a9f 2018-05-19 omar.polo horizontal_layout = !strcmp(v, "horizontal");
717 36a15a9f 2018-05-19 omar.polo free(v);
720 36a15a9f 2018-05-19 omar.polo fprintf(stderr, "no layout defined, using horizontal\n");
722 8758854a 2018-05-20 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt", "*", datatype, &value) == true) {
723 8758854a 2018-05-20 omar.polo free(ps1);
724 8758854a 2018-05-20 omar.polo ps1 = normalize_str(value.addr);
725 8758854a 2018-05-20 omar.polo } else
726 8758854a 2018-05-20 omar.polo fprintf(stderr, "no prompt defined, using \"%s\" as default\n", ps1);
728 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.width", "*", datatype, &value) == true)
729 f5e234d6 2018-05-18 omar.polo width = parse_integer(value.addr, width, d_width);
731 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no width defined, using %d\n", width);
733 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.height", "*", datatype, &value) == true)
734 f5e234d6 2018-05-18 omar.polo height = parse_integer(value.addr, height, d_height);
736 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no height defined, using %d\n", height);
738 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.x", "*", datatype, &value) == true)
739 f5e234d6 2018-05-18 omar.polo x = parse_int_with_middle(value.addr, x, d_width, width);
741 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no x defined, using %d\n", width);
743 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.y", "*", datatype, &value) == true)
744 f5e234d6 2018-05-18 omar.polo y = parse_int_with_middle(value.addr, y, d_height, height);
746 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no y defined, using %d\n", height);
748 f5e234d6 2018-05-18 omar.polo XColor tmp;
749 f5e234d6 2018-05-18 omar.polo // TODO: tmp needs to be free'd after every allocation?
751 f5e234d6 2018-05-18 omar.polo // prompt
752 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt.foreground", "*", datatype, &value) == true)
753 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &p_fg, &tmp);
755 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &p_fg, &tmp);
757 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt.background", "*", datatype, &value) == true)
758 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &p_bg, &tmp);
760 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &p_bg, &tmp);
762 f5e234d6 2018-05-18 omar.polo // completion
763 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion.foreground", "*", datatype, &value) == true)
764 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_fg, &tmp);
766 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_fg, &tmp);
768 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion.background", "*", datatype, &value) == true)
769 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_bg, &tmp);
771 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_bg, &tmp);
773 f5e234d6 2018-05-18 omar.polo // completion highlighted
774 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion_highlighted.foreground", "*", datatype, &value) == true)
775 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_highlighted_fg, &tmp);
777 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_highlighted_fg, &tmp);
779 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion_highlighted.background", "*", datatype, &value) == true)
780 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_highlighted_bg, &tmp);
782 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_highlighted_bg, &tmp);
783 f5e234d6 2018-05-18 omar.polo } else {
784 f5e234d6 2018-05-18 omar.polo XColor tmp;
785 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &p_fg, &tmp);
786 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &p_bg, &tmp);
787 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_fg, &tmp);
788 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_bg, &tmp);
789 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_highlighted_fg, &tmp);
790 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_highlighted_bg, &tmp);
793 f5e234d6 2018-05-18 omar.polo // load the font
794 347d23da 2018-05-19 omar.polo /* XFontStruct *font = XLoadQueryFont(d, fontname); */
795 347d23da 2018-05-19 omar.polo /* if (font == nil) { */
796 347d23da 2018-05-19 omar.polo /* fprintf(stderr, "Unable to load %s font\n", fontname); */
797 347d23da 2018-05-19 omar.polo /* font = XLoadQueryFont(d, "fixed"); */
798 347d23da 2018-05-19 omar.polo /* } */
799 347d23da 2018-05-19 omar.polo // load the font
800 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
801 c9a3bfaa 2018-05-21 omar.polo XftFont *font = XftFontOpenName(d, DefaultScreen(d), fontname);
803 347d23da 2018-05-19 omar.polo char **missing_charset_list;
804 347d23da 2018-05-19 omar.polo int missing_charset_count;
805 347d23da 2018-05-19 omar.polo XFontSet font = XCreateFontSet(d, fontname, &missing_charset_list, &missing_charset_count, nil);
806 f5e234d6 2018-05-18 omar.polo if (font == nil) {
807 347d23da 2018-05-19 omar.polo fprintf(stderr, "Unable to load the font(s) %s\n", fontname);
808 347d23da 2018-05-19 omar.polo return EX_UNAVAILABLE;
810 c9a3bfaa 2018-05-21 omar.polo #endif
812 f5e234d6 2018-05-18 omar.polo // create the window
813 f5e234d6 2018-05-18 omar.polo XSetWindowAttributes attr;
815 f5e234d6 2018-05-18 omar.polo Window w = XCreateWindow(d, // display
816 f5e234d6 2018-05-18 omar.polo DefaultRootWindow(d), // parent
817 f5e234d6 2018-05-18 omar.polo x + offset_x, y + offset_y, // x y
818 f5e234d6 2018-05-18 omar.polo width, height, // w h
819 f5e234d6 2018-05-18 omar.polo 0, // border width
820 f5e234d6 2018-05-18 omar.polo DefaultDepth(d, DefaultScreen(d)), // depth
821 f5e234d6 2018-05-18 omar.polo InputOutput, // class
822 f5e234d6 2018-05-18 omar.polo DefaultVisual(d, DefaultScreen(d)), // visual
823 f5e234d6 2018-05-18 omar.polo 0, // value mask
824 f5e234d6 2018-05-18 omar.polo &attr);
826 f5e234d6 2018-05-18 omar.polo set_win_atoms_hints(d, w, width, height);
828 f5e234d6 2018-05-18 omar.polo // we want some events
829 c9a3bfaa 2018-05-21 omar.polo XSelectInput(d, w, StructureNotifyMask | KeyPressMask | KeymapStateMask);
831 f5e234d6 2018-05-18 omar.polo // make the window appear on the screen
832 f5e234d6 2018-05-18 omar.polo XMapWindow(d, w);
834 f5e234d6 2018-05-18 omar.polo // wait for the MapNotify event (i.e. the event "window rendered")
835 f5e234d6 2018-05-18 omar.polo for (;;) {
836 f5e234d6 2018-05-18 omar.polo XEvent e;
837 f5e234d6 2018-05-18 omar.polo XNextEvent(d, &e);
838 f5e234d6 2018-05-18 omar.polo if (e.type == MapNotify)
839 f5e234d6 2018-05-18 omar.polo break;
842 f5e234d6 2018-05-18 omar.polo // get the *real* width & height after the window was rendered
843 f5e234d6 2018-05-18 omar.polo get_wh(d, &w, &width, &height);
845 f5e234d6 2018-05-18 omar.polo // grab keyboard
846 f5e234d6 2018-05-18 omar.polo take_keyboard(d, w);
848 f5e234d6 2018-05-18 omar.polo // Create some graphics contexts
849 f5e234d6 2018-05-18 omar.polo XGCValues values;
850 347d23da 2018-05-19 omar.polo /* values.font = font->fid; */
852 f5e234d6 2018-05-18 omar.polo struct rendering r = {
853 f5e234d6 2018-05-18 omar.polo .d = d,
854 f5e234d6 2018-05-18 omar.polo .w = w,
855 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
856 c9a3bfaa 2018-05-21 omar.polo .font = font,
858 c9a3bfaa 2018-05-21 omar.polo .font = &font,
859 c9a3bfaa 2018-05-21 omar.polo #endif
860 347d23da 2018-05-19 omar.polo .prompt = XCreateGC(d, w, 0, &values),
861 347d23da 2018-05-19 omar.polo .prompt_bg = XCreateGC(d, w, 0, &values),
862 347d23da 2018-05-19 omar.polo .completion = XCreateGC(d, w, 0, &values),
863 347d23da 2018-05-19 omar.polo .completion_bg = XCreateGC(d, w, 0, &values),
864 347d23da 2018-05-19 omar.polo .completion_highlighted = XCreateGC(d, w, 0, &values),
865 347d23da 2018-05-19 omar.polo .completion_highlighted_bg = XCreateGC(d, w, 0, &values),
866 f5e234d6 2018-05-18 omar.polo .width = width,
867 f5e234d6 2018-05-18 omar.polo .height = height,
868 8758854a 2018-05-20 omar.polo .horizontal_layout = horizontal_layout,
869 8758854a 2018-05-20 omar.polo .ps1 = ps1,
870 8758854a 2018-05-20 omar.polo .ps1len = strlen(ps1)
873 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
874 c9a3bfaa 2018-05-21 omar.polo r.xftdraw = XftDrawCreate(d, w, DefaultVisual(d, 0), DefaultColormap(d, 0));
876 c9a3bfaa 2018-05-21 omar.polo // prompt
877 c9a3bfaa 2018-05-21 omar.polo XRenderColor xrcolor;
878 c9a3bfaa 2018-05-21 omar.polo xrcolor.red = p_fg.red;
879 c9a3bfaa 2018-05-21 omar.polo xrcolor.green = p_fg.red;
880 c9a3bfaa 2018-05-21 omar.polo xrcolor.blue = p_fg.red;
881 c9a3bfaa 2018-05-21 omar.polo xrcolor.alpha = 65535;
882 c9a3bfaa 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_prompt);
884 c9a3bfaa 2018-05-21 omar.polo // completion
885 c9a3bfaa 2018-05-21 omar.polo xrcolor.red = compl_fg.red;
886 c9a3bfaa 2018-05-21 omar.polo xrcolor.green = compl_fg.green;
887 c9a3bfaa 2018-05-21 omar.polo xrcolor.blue = compl_fg.blue;
888 c9a3bfaa 2018-05-21 omar.polo xrcolor.alpha = 65535;
889 c9a3bfaa 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_completion);
891 c9a3bfaa 2018-05-21 omar.polo // completion highlighted
892 c9a3bfaa 2018-05-21 omar.polo xrcolor.red = compl_highlighted_fg.red;
893 c9a3bfaa 2018-05-21 omar.polo xrcolor.green = compl_highlighted_fg.green;
894 c9a3bfaa 2018-05-21 omar.polo xrcolor.blue = compl_highlighted_fg.blue;
895 c9a3bfaa 2018-05-21 omar.polo xrcolor.alpha = 65535;
896 c9a3bfaa 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_completion_highlighted);
897 c9a3bfaa 2018-05-21 omar.polo #endif
899 f5e234d6 2018-05-18 omar.polo // load the colors in our GCs
900 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.prompt, p_fg.pixel);
901 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.prompt_bg, p_bg.pixel);
902 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion, compl_fg.pixel);
903 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_bg, compl_bg.pixel);
904 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_highlighted, compl_highlighted_fg.pixel);
905 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_highlighted_bg, compl_highlighted_bg.pixel);
907 347d23da 2018-05-19 omar.polo // open the X input method
908 347d23da 2018-05-19 omar.polo XIM xim = XOpenIM(d, xdb, resname, resclass);
909 347d23da 2018-05-19 omar.polo check_allocation(xim);
911 347d23da 2018-05-19 omar.polo XIMStyles *xis = nil;
912 347d23da 2018-05-19 omar.polo if (XGetIMValues(xim, XNQueryInputStyle, &xis, NULL) || !xis) {
913 347d23da 2018-05-19 omar.polo fprintf(stderr, "Input Styles could not be retrieved\n");
914 347d23da 2018-05-19 omar.polo return EX_UNAVAILABLE;
917 347d23da 2018-05-19 omar.polo XIMStyle bestMatchStyle = 0;
918 347d23da 2018-05-19 omar.polo for (int i = 0; i < xis->count_styles; ++i) {
919 347d23da 2018-05-19 omar.polo XIMStyle ts = xis->supported_styles[i];
920 347d23da 2018-05-19 omar.polo if (ts == (XIMPreeditNothing | XIMStatusNothing)) {
921 347d23da 2018-05-19 omar.polo bestMatchStyle = ts;
922 347d23da 2018-05-19 omar.polo break;
925 347d23da 2018-05-19 omar.polo XFree(xis);
927 347d23da 2018-05-19 omar.polo if (!bestMatchStyle) {
928 347d23da 2018-05-19 omar.polo fprintf(stderr, "No matching input style could be determined\n");
931 347d23da 2018-05-19 omar.polo XIC xic = XCreateIC(xim, XNInputStyle, bestMatchStyle, XNClientWindow, w, XNFocusWindow, w, NULL);
932 347d23da 2018-05-19 omar.polo check_allocation(xic);
934 f5e234d6 2018-05-18 omar.polo // draw the window for the first time
935 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
937 f5e234d6 2018-05-18 omar.polo // main loop
938 f5e234d6 2018-05-18 omar.polo while (status == LOOPING) {
939 f5e234d6 2018-05-18 omar.polo XEvent e;
940 f5e234d6 2018-05-18 omar.polo XNextEvent(d, &e);
942 347d23da 2018-05-19 omar.polo if (XFilterEvent(&e, w))
943 347d23da 2018-05-19 omar.polo continue;
945 f5e234d6 2018-05-18 omar.polo switch (e.type) {
946 f5e234d6 2018-05-18 omar.polo case KeymapNotify:
947 f5e234d6 2018-05-18 omar.polo XRefreshKeyboardMapping(&e.xmapping);
948 f5e234d6 2018-05-18 omar.polo break;
950 347d23da 2018-05-19 omar.polo case KeyPress: {
951 347d23da 2018-05-19 omar.polo XKeyPressedEvent *ev = (XKeyPressedEvent*)&e;
953 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Tab)) {
954 347d23da 2018-05-19 omar.polo bool shift = (ev->state & ShiftMask);
955 347d23da 2018-05-19 omar.polo struct completions *n = shift ? compl_select_prev(cs, nothing_selected)
956 347d23da 2018-05-19 omar.polo : compl_select_next(cs, nothing_selected);
957 347d23da 2018-05-19 omar.polo if (n != nil) {
958 347d23da 2018-05-19 omar.polo nothing_selected = false;
959 347d23da 2018-05-19 omar.polo free(text);
960 347d23da 2018-05-19 omar.polo text = strdup(n->completion);
961 347d23da 2018-05-19 omar.polo if (text == nil) {
962 347d23da 2018-05-19 omar.polo fprintf(stderr, "Memory allocation error!\n");
963 347d23da 2018-05-19 omar.polo status = ERR;
964 347d23da 2018-05-19 omar.polo break;
966 347d23da 2018-05-19 omar.polo textlen = strlen(text);
968 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
969 f5e234d6 2018-05-18 omar.polo break;
972 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_BackSpace)) {
973 f5e234d6 2018-05-18 omar.polo nothing_selected = true;
974 f5e234d6 2018-05-18 omar.polo popc(text, textlen);
975 f5e234d6 2018-05-18 omar.polo update_completions(cs, text, lines);
976 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
977 f5e234d6 2018-05-18 omar.polo break;
980 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Return)) {
981 347d23da 2018-05-19 omar.polo status = OK;
982 347d23da 2018-05-19 omar.polo break;
985 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Escape)) {
986 347d23da 2018-05-19 omar.polo status = ERR;
987 347d23da 2018-05-19 omar.polo break;
990 347d23da 2018-05-19 omar.polo // try to read what the user pressed
991 347d23da 2018-05-19 omar.polo int symbol = 0;
992 347d23da 2018-05-19 omar.polo Status s = 0;
993 347d23da 2018-05-19 omar.polo Xutf8LookupString(xic, ev, (char*)&symbol, 4, 0, &s);
995 347d23da 2018-05-19 omar.polo if (s == XBufferOverflow) {
996 347d23da 2018-05-19 omar.polo // should not happen since there are no utf-8 characters
997 347d23da 2018-05-19 omar.polo // larger than 24bits, but is something to be aware of when
998 347d23da 2018-05-19 omar.polo // used to directly write to a string buffer
999 347d23da 2018-05-19 omar.polo fprintf(stderr, "Buffer overflow when trying to create keyboard symbol map.\n");
1000 347d23da 2018-05-19 omar.polo break;
1002 347d23da 2018-05-19 omar.polo char *str = (char*)&symbol;
1004 347d23da 2018-05-19 omar.polo if (ev->state & ControlMask) {
1005 347d23da 2018-05-19 omar.polo // check for some key bindings
1006 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-u
1007 f5e234d6 2018-05-18 omar.polo nothing_selected = true;
1008 347d23da 2018-05-19 omar.polo for (int i = 0; i < textlen; ++i)
1009 347d23da 2018-05-19 omar.polo text[i] = 0;
1010 f5e234d6 2018-05-18 omar.polo update_completions(cs, text, lines);
1012 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-h
1013 347d23da 2018-05-19 omar.polo nothing_selected = true;
1014 347d23da 2018-05-19 omar.polo popc(text, textlen);
1015 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1017 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-w
1018 347d23da 2018-05-19 omar.polo nothing_selected = true;
1020 347d23da 2018-05-19 omar.polo // `textlen` is the length of the allocated string, not the
1021 347d23da 2018-05-19 omar.polo // length of the ACTUAL string
1022 347d23da 2018-05-19 omar.polo int p = strlen(text) - 1;
1023 347d23da 2018-05-19 omar.polo if (p >= 0) { // delete the current char
1024 347d23da 2018-05-19 omar.polo text[p] = 0;
1027 347d23da 2018-05-19 omar.polo while (p >= 0 && isalnum(text[p])) {
1028 347d23da 2018-05-19 omar.polo text[p] = 0;
1031 347d23da 2018-05-19 omar.polo // erase also trailing white space
1032 347d23da 2018-05-19 omar.polo while (p >= 0 && isspace(text[p])) {
1033 347d23da 2018-05-19 omar.polo text[p] = 0;
1036 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1038 347d23da 2018-05-19 omar.polo if (!strcmp(str, "\r")) { // C-m
1039 347d23da 2018-05-19 omar.polo status = OK;
1041 347d23da 2018-05-19 omar.polo draw(&r, text, cs);
1042 f5e234d6 2018-05-18 omar.polo break;
1045 347d23da 2018-05-19 omar.polo int str_len = strlen(str);
1046 347d23da 2018-05-19 omar.polo for (int i = 0; i < str_len; ++i) {
1047 347d23da 2018-05-19 omar.polo textlen = pushc(&text, textlen, str[i]);
1048 347d23da 2018-05-19 omar.polo if (textlen == -1) {
1049 347d23da 2018-05-19 omar.polo fprintf(stderr, "Memory allocation error\n");
1050 347d23da 2018-05-19 omar.polo status = ERR;
1051 347d23da 2018-05-19 omar.polo break;
1053 347d23da 2018-05-19 omar.polo nothing_selected = true;
1054 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1058 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
1059 f5e234d6 2018-05-18 omar.polo break;
1061 f5e234d6 2018-05-18 omar.polo default:
1062 347d23da 2018-05-19 omar.polo fprintf(stderr, "Unknown event %d\n", e.type);
1066 f5e234d6 2018-05-18 omar.polo release_keyboard(d);
1068 f5e234d6 2018-05-18 omar.polo if (status == OK)
1069 f5e234d6 2018-05-18 omar.polo printf("%s\n", text);
1071 6da98882 2018-05-20 omar.polo for (int i = 0; i < nlines; ++i) {
1072 6da98882 2018-05-20 omar.polo free(lines[i]);
1075 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
1076 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_prompt);
1077 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_completion);
1078 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_completion_highlighted);
1079 c9a3bfaa 2018-05-21 omar.polo #endif
1081 8758854a 2018-05-20 omar.polo free(ps1);
1082 f5e234d6 2018-05-18 omar.polo free(fontname);
1083 f5e234d6 2018-05-18 omar.polo free(text);
1084 95b27a5e 2018-05-19 omar.polo free(lines);
1085 f5e234d6 2018-05-18 omar.polo compl_delete(cs);
1087 8758854a 2018-05-20 omar.polo XDestroyWindow(d, w);
1088 f5e234d6 2018-05-18 omar.polo XCloseDisplay(d);
1090 f5e234d6 2018-05-18 omar.polo return status == OK ? 0 : 1;
