1 f5e234d6 2018-05-18 omar.polo #include <stdio.h>
2 f5e234d6 2018-05-18 omar.polo #include <stdlib.h>
3 f5e234d6 2018-05-18 omar.polo #include <string.h> // strdup, strnlen, ...
4 f5e234d6 2018-05-18 omar.polo #include <ctype.h> // isalnum
5 f5e234d6 2018-05-18 omar.polo #include <locale.h> // setlocale
6 f5e234d6 2018-05-18 omar.polo #include <unistd.h>
7 f5e234d6 2018-05-18 omar.polo #include <sysexits.h>
8 f5e234d6 2018-05-18 omar.polo #include <stdbool.h>
9 f5e234d6 2018-05-18 omar.polo #include <limits.h>
10 f5e234d6 2018-05-18 omar.polo #include <errno.h>
12 f5e234d6 2018-05-18 omar.polo #include <X11/Xlib.h>
13 f5e234d6 2018-05-18 omar.polo #include <X11/Xutil.h> // XLookupString
14 f5e234d6 2018-05-18 omar.polo #include <X11/Xresource.h>
15 f5e234d6 2018-05-18 omar.polo #include <X11/Xcms.h> // colors
16 347d23da 2018-05-19 omar.polo #include <X11/keysym.h>
18 f5e234d6 2018-05-18 omar.polo #ifdef USE_XINERAMA
19 f5e234d6 2018-05-18 omar.polo # include <X11/extensions/Xinerama.h>
22 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
23 c9a3bfaa 2018-05-21 omar.polo # include <X11/Xft/Xft.h>
26 f5e234d6 2018-05-18 omar.polo #define nil NULL
27 347d23da 2018-05-19 omar.polo #define resname "MyMenu"
28 347d23da 2018-05-19 omar.polo #define resclass "mymenu"
30 9e94fcbe 2018-05-22 omar.polo #ifdef USE_XFT
31 9e94fcbe 2018-05-22 omar.polo # define default_fontname "monospace"
33 9e94fcbe 2018-05-22 omar.polo # define default_fontname "fixed"
36 9e94fcbe 2018-05-22 omar.polo #define MIN(a, b) ((a) < (b) ? (a) : (b))
37 f5e234d6 2018-05-18 omar.polo #define MAX(a, b) ((a) > (b) ? (a) : (b))
39 9e94fcbe 2018-05-22 omar.polo // If we don't have it or we don't want an "ignore case" completion
40 9e94fcbe 2018-05-22 omar.polo // style, fall back to `strstr(3)`
41 9e94fcbe 2018-05-22 omar.polo #ifndef USE_STRCASESTR
42 9e94fcbe 2018-05-22 omar.polo #define strcasestr strstr
45 f5e234d6 2018-05-18 omar.polo #define update_completions(cs, text, lines) { \
46 f5e234d6 2018-05-18 omar.polo compl_delete(cs); \
47 f5e234d6 2018-05-18 omar.polo cs = filter(text, lines); \
50 95b27a5e 2018-05-19 omar.polo #define INITIAL_ITEMS 64
52 f5e234d6 2018-05-18 omar.polo #define cannot_allocate_memory { \
53 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory\n"); \
54 9e94fcbe 2018-05-22 omar.polo abort(); \
57 f5e234d6 2018-05-18 omar.polo #define check_allocation(a) { \
58 f5e234d6 2018-05-18 omar.polo if (a == nil) \
59 f5e234d6 2018-05-18 omar.polo cannot_allocate_memory; \
62 f5e234d6 2018-05-18 omar.polo enum state {LOOPING, OK, ERR};
64 c9a3bfaa 2018-05-21 omar.polo enum text_type {PROMPT, COMPL, COMPL_HIGH};
66 f5e234d6 2018-05-18 omar.polo struct rendering {
67 f5e234d6 2018-05-18 omar.polo Display *d;
68 f5e234d6 2018-05-18 omar.polo Window w;
69 f5e234d6 2018-05-18 omar.polo GC prompt;
70 f5e234d6 2018-05-18 omar.polo GC prompt_bg;
71 f5e234d6 2018-05-18 omar.polo GC completion;
72 f5e234d6 2018-05-18 omar.polo GC completion_bg;
73 f5e234d6 2018-05-18 omar.polo GC completion_highlighted;
74 f5e234d6 2018-05-18 omar.polo GC completion_highlighted_bg;
75 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
76 c9a3bfaa 2018-05-21 omar.polo XftDraw *xftdraw;
77 c9a3bfaa 2018-05-21 omar.polo XftColor xft_prompt;
78 c9a3bfaa 2018-05-21 omar.polo XftColor xft_completion;
79 c9a3bfaa 2018-05-21 omar.polo XftColor xft_completion_highlighted;
80 c9a3bfaa 2018-05-21 omar.polo XftFont *font;
82 c9a3bfaa 2018-05-21 omar.polo XFontSet *font;
84 f5e234d6 2018-05-18 omar.polo int width;
85 f5e234d6 2018-05-18 omar.polo int height;
86 36a15a9f 2018-05-19 omar.polo bool horizontal_layout;
87 8758854a 2018-05-20 omar.polo char *ps1;
88 8758854a 2018-05-20 omar.polo int ps1len;
91 f5e234d6 2018-05-18 omar.polo struct completions {
92 f5e234d6 2018-05-18 omar.polo char *completion;
93 f5e234d6 2018-05-18 omar.polo bool selected;
94 f5e234d6 2018-05-18 omar.polo struct completions *next;
97 f5e234d6 2018-05-18 omar.polo struct completions *compl_new() {
98 f5e234d6 2018-05-18 omar.polo struct completions *c = malloc(sizeof(struct completions));
100 f5e234d6 2018-05-18 omar.polo if (c == nil)
101 f5e234d6 2018-05-18 omar.polo return c;
103 f5e234d6 2018-05-18 omar.polo c->completion = nil;
104 f5e234d6 2018-05-18 omar.polo c->selected = false;
105 f5e234d6 2018-05-18 omar.polo c->next = nil;
106 f5e234d6 2018-05-18 omar.polo return c;
109 f5e234d6 2018-05-18 omar.polo void compl_delete(struct completions *c) {
110 f5e234d6 2018-05-18 omar.polo free(c);
113 347d23da 2018-05-19 omar.polo struct completions *compl_select_next(struct completions *c, bool n) {
114 347d23da 2018-05-19 omar.polo if (c == nil)
115 347d23da 2018-05-19 omar.polo return nil;
116 347d23da 2018-05-19 omar.polo if (n) {
117 347d23da 2018-05-19 omar.polo c->selected = true;
118 347d23da 2018-05-19 omar.polo return c;
121 347d23da 2018-05-19 omar.polo struct completions *orig = c;
122 347d23da 2018-05-19 omar.polo while (c != nil) {
123 347d23da 2018-05-19 omar.polo if (c->selected) {
124 347d23da 2018-05-19 omar.polo c->selected = false;
125 347d23da 2018-05-19 omar.polo if (c->next != nil) {
126 347d23da 2018-05-19 omar.polo // the current one is selected and the next one exists
127 347d23da 2018-05-19 omar.polo c->next->selected = true;
128 347d23da 2018-05-19 omar.polo return c->next;
129 347d23da 2018-05-19 omar.polo } else {
130 347d23da 2018-05-19 omar.polo // the current one is selected and the next one is nill,
131 347d23da 2018-05-19 omar.polo // select the first one
132 347d23da 2018-05-19 omar.polo orig->selected = true;
133 347d23da 2018-05-19 omar.polo return orig;
136 347d23da 2018-05-19 omar.polo c = c->next;
138 347d23da 2018-05-19 omar.polo return nil;
141 347d23da 2018-05-19 omar.polo struct completions *compl_select_prev(struct completions *c, bool n) {
142 347d23da 2018-05-19 omar.polo if (c == nil)
143 347d23da 2018-05-19 omar.polo return nil;
145 347d23da 2018-05-19 omar.polo struct completions *cc = c;
147 347d23da 2018-05-19 omar.polo if (n) // select the last one
148 347d23da 2018-05-19 omar.polo while (cc != nil) {
149 347d23da 2018-05-19 omar.polo if (cc->next == nil) {
150 347d23da 2018-05-19 omar.polo cc->selected = true;
151 347d23da 2018-05-19 omar.polo return cc;
153 347d23da 2018-05-19 omar.polo cc = cc->next;
155 347d23da 2018-05-19 omar.polo else // select the previous one
156 347d23da 2018-05-19 omar.polo while (cc != nil) {
157 347d23da 2018-05-19 omar.polo if (cc->next != nil && cc->next->selected) {
158 347d23da 2018-05-19 omar.polo cc->next->selected = false;
159 347d23da 2018-05-19 omar.polo cc->selected = true;
160 347d23da 2018-05-19 omar.polo return cc;
162 347d23da 2018-05-19 omar.polo cc = cc->next;
165 347d23da 2018-05-19 omar.polo return nil;
168 f5e234d6 2018-05-18 omar.polo struct completions *filter(char *text, char **lines) {
169 f5e234d6 2018-05-18 omar.polo int i = 0;
170 f5e234d6 2018-05-18 omar.polo struct completions *root = compl_new();
171 f5e234d6 2018-05-18 omar.polo struct completions *c = root;
173 f5e234d6 2018-05-18 omar.polo for (;;) {
174 f5e234d6 2018-05-18 omar.polo char *l = lines[i];
175 f5e234d6 2018-05-18 omar.polo if (l == nil)
176 f5e234d6 2018-05-18 omar.polo break;
178 9e94fcbe 2018-05-22 omar.polo if (strcasestr(l, text) != nil) {
179 f5e234d6 2018-05-18 omar.polo c->next = compl_new();
180 f5e234d6 2018-05-18 omar.polo c = c->next;
181 f5e234d6 2018-05-18 omar.polo c->completion = l;
187 f5e234d6 2018-05-18 omar.polo struct completions *r = root->next;
188 f5e234d6 2018-05-18 omar.polo compl_delete(root);
189 f5e234d6 2018-05-18 omar.polo return r;
192 f5e234d6 2018-05-18 omar.polo // push the character c at the end of the string pointed by p
193 f5e234d6 2018-05-18 omar.polo int pushc(char **p, int maxlen, char c) {
194 f5e234d6 2018-05-18 omar.polo int len = strnlen(*p, maxlen);
196 f5e234d6 2018-05-18 omar.polo if (!(len < maxlen -2)) {
197 f5e234d6 2018-05-18 omar.polo maxlen += maxlen >> 1;
198 f5e234d6 2018-05-18 omar.polo char *newptr = realloc(*p, maxlen);
199 f5e234d6 2018-05-18 omar.polo if (newptr == nil) { // bad!
200 f5e234d6 2018-05-18 omar.polo return -1;
202 f5e234d6 2018-05-18 omar.polo *p = newptr;
205 f5e234d6 2018-05-18 omar.polo (*p)[len] = c;
206 f5e234d6 2018-05-18 omar.polo (*p)[len+1] = '\0';
207 f5e234d6 2018-05-18 omar.polo return maxlen;
210 347d23da 2018-05-19 omar.polo int utf8strnlen(char *s, int maxlen) {
211 347d23da 2018-05-19 omar.polo int len = 0;
212 347d23da 2018-05-19 omar.polo while (*s && maxlen > 0) {
213 347d23da 2018-05-19 omar.polo len += (*s++ & 0xc0) != 0x80;
214 347d23da 2018-05-19 omar.polo maxlen--;
216 347d23da 2018-05-19 omar.polo return len;
219 347d23da 2018-05-19 omar.polo // remove the last *glyph* from the *utf8* string!
220 347d23da 2018-05-19 omar.polo // this is different from just setting the last byte to 0 (in some
221 347d23da 2018-05-19 omar.polo // cases ofc). The actual implementation is quite inefficient because
222 347d23da 2018-05-19 omar.polo // it remove the last char until the number of glyphs doesn't change
223 f5e234d6 2018-05-18 omar.polo void popc(char *p, int maxlen) {
224 f5e234d6 2018-05-18 omar.polo int len = strnlen(p, maxlen);
226 347d23da 2018-05-19 omar.polo if (len == 0)
227 347d23da 2018-05-19 omar.polo return;
229 347d23da 2018-05-19 omar.polo int ulen = utf8strnlen(p, maxlen);
230 347d23da 2018-05-19 omar.polo while (len > 0 && utf8strnlen(p, maxlen) == ulen) {
231 347d23da 2018-05-19 omar.polo len--;
232 347d23da 2018-05-19 omar.polo p[len] = 0;
236 8758854a 2018-05-20 omar.polo // If the string is surrounded by quotes (`"`) remove them and replace
237 8758854a 2018-05-20 omar.polo // every `\"` in the string with `"`
238 8758854a 2018-05-20 omar.polo char *normalize_str(const char *str) {
239 8758854a 2018-05-20 omar.polo int len = strlen(str);
240 8758854a 2018-05-20 omar.polo if (len == 0)
241 8758854a 2018-05-20 omar.polo return nil;
243 8758854a 2018-05-20 omar.polo char *s = calloc(len, sizeof(char));
244 8758854a 2018-05-20 omar.polo check_allocation(s);
245 8758854a 2018-05-20 omar.polo int p = 0;
246 8758854a 2018-05-20 omar.polo while (*str) {
247 8758854a 2018-05-20 omar.polo char c = *str;
248 8758854a 2018-05-20 omar.polo if (*str == '\\') {
249 8758854a 2018-05-20 omar.polo if (*(str + 1)) {
250 8758854a 2018-05-20 omar.polo s[p] = *(str + 1);
252 8758854a 2018-05-20 omar.polo str += 2; // skip this and the next char
253 8758854a 2018-05-20 omar.polo continue;
254 8758854a 2018-05-20 omar.polo } else {
255 8758854a 2018-05-20 omar.polo break;
258 8758854a 2018-05-20 omar.polo if (c == '"') {
259 8758854a 2018-05-20 omar.polo str++; // skip only this char
260 8758854a 2018-05-20 omar.polo continue;
262 8758854a 2018-05-20 omar.polo s[p] = c;
264 8758854a 2018-05-20 omar.polo str++;
266 8758854a 2018-05-20 omar.polo return s;
269 f5e234d6 2018-05-18 omar.polo // read an arbitrary long line from stdin and return a pointer to it
270 f5e234d6 2018-05-18 omar.polo // TODO: resize the allocated memory to exactly fit the string once
271 f5e234d6 2018-05-18 omar.polo // read?
272 f5e234d6 2018-05-18 omar.polo char *readline(bool *eof) {
273 f5e234d6 2018-05-18 omar.polo int maxlen = 8;
274 f5e234d6 2018-05-18 omar.polo char *str = calloc(maxlen, sizeof(char));
275 f5e234d6 2018-05-18 omar.polo if (str == nil) {
276 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Cannot allocate memory!\n");
277 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
280 f5e234d6 2018-05-18 omar.polo int c;
281 f5e234d6 2018-05-18 omar.polo while((c = getchar()) != EOF) {
282 f5e234d6 2018-05-18 omar.polo if (c == '\n')
283 f5e234d6 2018-05-18 omar.polo return str;
285 f5e234d6 2018-05-18 omar.polo maxlen = pushc(&str, maxlen, c);
287 f5e234d6 2018-05-18 omar.polo if (maxlen == -1) {
288 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Cannot allocate memory!\n");
289 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
292 f5e234d6 2018-05-18 omar.polo *eof = true;
293 f5e234d6 2018-05-18 omar.polo return str;
296 95b27a5e 2018-05-19 omar.polo int readlines (char ***lns, int items) {
297 f5e234d6 2018-05-18 omar.polo bool finished = false;
298 f5e234d6 2018-05-18 omar.polo int n = 0;
299 95b27a5e 2018-05-19 omar.polo char **lines = *lns;
300 95b27a5e 2018-05-19 omar.polo while (true) {
301 f5e234d6 2018-05-18 omar.polo lines[n] = readline(&finished);
303 6da98882 2018-05-20 omar.polo if (strlen(lines[n]) == 0 || lines[n][0] == '\n') {
304 6da98882 2018-05-20 omar.polo free(lines[n]);
305 f5e234d6 2018-05-18 omar.polo --n; // forget about this line
308 f5e234d6 2018-05-18 omar.polo if (finished)
309 f5e234d6 2018-05-18 omar.polo break;
313 95b27a5e 2018-05-19 omar.polo if (n == items - 1) {
314 95b27a5e 2018-05-19 omar.polo items += items >>1;
315 95b27a5e 2018-05-19 omar.polo char **l = realloc(lines, sizeof(char*) * items);
316 95b27a5e 2018-05-19 omar.polo check_allocation(l);
317 95b27a5e 2018-05-19 omar.polo *lns = l;
318 95b27a5e 2018-05-19 omar.polo lines = l;
323 f5e234d6 2018-05-18 omar.polo lines[n] = nil;
324 95b27a5e 2018-05-19 omar.polo return items;
327 c9a3bfaa 2018-05-21 omar.polo int text_extents(char *str, int len, struct rendering *r, int *ret_width, int *ret_height) {
328 c9a3bfaa 2018-05-21 omar.polo int height;
329 c9a3bfaa 2018-05-21 omar.polo int width;
330 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
331 c9a3bfaa 2018-05-21 omar.polo XGlyphInfo gi;
332 c9a3bfaa 2018-05-21 omar.polo XftTextExtentsUtf8(r->d, r->font, str, len, &gi);
333 c9a3bfaa 2018-05-21 omar.polo height = (r->font->ascent - r->font->descent)/2;
334 c9a3bfaa 2018-05-21 omar.polo width = gi.width - gi.x;
336 c9a3bfaa 2018-05-21 omar.polo XRectangle rect;
337 c9a3bfaa 2018-05-21 omar.polo XmbTextExtents(*r->font, str, len, nil, &rect);
338 c9a3bfaa 2018-05-21 omar.polo height = rect.height;
339 c9a3bfaa 2018-05-21 omar.polo width = rect.width;
340 c9a3bfaa 2018-05-21 omar.polo #endif
341 c9a3bfaa 2018-05-21 omar.polo if (ret_width != nil) *ret_width = width;
342 c9a3bfaa 2018-05-21 omar.polo if (ret_height != nil) *ret_height = height;
343 c9a3bfaa 2018-05-21 omar.polo return width;
346 c9a3bfaa 2018-05-21 omar.polo void draw_string(char *str, int len, int x, int y, struct rendering *r, enum text_type tt) {
347 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
348 c9a3bfaa 2018-05-21 omar.polo XftColor xftcolor;
349 c9a3bfaa 2018-05-21 omar.polo if (tt == PROMPT) xftcolor = r->xft_prompt;
350 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL) xftcolor = r->xft_completion;
351 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL_HIGH) xftcolor = r->xft_completion_highlighted;
353 c9a3bfaa 2018-05-21 omar.polo XftDrawStringUtf8(r->xftdraw, &xftcolor, r->font, x, y, str, len);
355 c9a3bfaa 2018-05-21 omar.polo GC gc;
356 c9a3bfaa 2018-05-21 omar.polo if (tt == PROMPT) gc = r->prompt;
357 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL) gc = r->completion;
358 c9a3bfaa 2018-05-21 omar.polo if (tt == COMPL_HIGH) gc = r->completion_highlighted;
359 c9a3bfaa 2018-05-21 omar.polo Xutf8DrawString(r->d, r->w, *r->font, gc, x, y, str, len);
360 c9a3bfaa 2018-05-21 omar.polo #endif
363 c9a3bfaa 2018-05-21 omar.polo char *strdupn(char *str) {
364 c9a3bfaa 2018-05-21 omar.polo int len = strlen(str);
366 c9a3bfaa 2018-05-21 omar.polo if (str == nil || len == 0)
367 c9a3bfaa 2018-05-21 omar.polo return nil;
369 c9a3bfaa 2018-05-21 omar.polo char *dup = strdup(str);
370 c9a3bfaa 2018-05-21 omar.polo if (dup == nil)
371 c9a3bfaa 2018-05-21 omar.polo return nil;
373 c9a3bfaa 2018-05-21 omar.polo for (int i = 0; i < len; ++i)
374 c9a3bfaa 2018-05-21 omar.polo if (dup[i] == ' ')
375 c9a3bfaa 2018-05-21 omar.polo dup[i] = 'n';
377 c9a3bfaa 2018-05-21 omar.polo return dup;
380 f5e234d6 2018-05-18 omar.polo // |------------------|----------------------------------------------|
381 f5e234d6 2018-05-18 omar.polo // | 20 char text | completion | completion | completion | compl |
382 f5e234d6 2018-05-18 omar.polo // |------------------|----------------------------------------------|
383 36a15a9f 2018-05-19 omar.polo void draw_horizontally(struct rendering *r, char *text, struct completions *cs) {
384 f5e234d6 2018-05-18 omar.polo // TODO: make these dynamic?
385 f5e234d6 2018-05-18 omar.polo int prompt_width = 20; // char
386 f5e234d6 2018-05-18 omar.polo int padding = 10;
388 c9a3bfaa 2018-05-21 omar.polo int width, height;
389 c9a3bfaa 2018-05-21 omar.polo char *ps1_dup = strdupn(r->ps1);
390 c9a3bfaa 2018-05-21 omar.polo ps1_dup = ps1_dup == nil ? r->ps1 : ps1_dup;
391 c9a3bfaa 2018-05-21 omar.polo int ps1xlen = text_extents(ps1_dup, r->ps1len, r, &width, &height);
392 c9a3bfaa 2018-05-21 omar.polo free(ps1_dup);
393 8758854a 2018-05-20 omar.polo int start_at = ps1xlen;
395 c9a3bfaa 2018-05-21 omar.polo start_at = text_extents("n", 1, r, nil, nil);
396 347d23da 2018-05-19 omar.polo start_at = start_at * prompt_width + padding;
398 c9a3bfaa 2018-05-21 omar.polo int texty = (height + r->height) >>1;
400 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, r->prompt_bg, 0, 0, start_at, r->height);
402 f5e234d6 2018-05-18 omar.polo int text_len = strlen(text);
403 f5e234d6 2018-05-18 omar.polo if (text_len > prompt_width)
404 f5e234d6 2018-05-18 omar.polo text = text + (text_len - prompt_width);
405 c9a3bfaa 2018-05-21 omar.polo draw_string(r->ps1, r->ps1len, padding, texty, r, PROMPT);
406 c9a3bfaa 2018-05-21 omar.polo draw_string(text, MIN(text_len, prompt_width), padding + ps1xlen, texty, r, PROMPT);
408 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, r->completion_bg, start_at, 0, r->width, r->height);
410 f5e234d6 2018-05-18 omar.polo while (cs != nil) {
411 c9a3bfaa 2018-05-21 omar.polo enum text_type tt = cs->selected ? COMPL_HIGH : COMPL;
412 f5e234d6 2018-05-18 omar.polo GC h = cs->selected ? r->completion_highlighted_bg : r->completion_bg;
414 f5e234d6 2018-05-18 omar.polo int len = strlen(cs->completion);
415 c9a3bfaa 2018-05-21 omar.polo int text_width = text_extents(cs->completion, len, r, nil, nil);
417 f5e234d6 2018-05-18 omar.polo XFillRectangle(r->d, r->w, h, start_at, 0, text_width + padding*2, r->height);
419 c9a3bfaa 2018-05-21 omar.polo draw_string(cs->completion, len, start_at + padding, texty, r, tt);
421 f5e234d6 2018-05-18 omar.polo start_at += text_width + padding * 2;
423 0ee198aa 2018-05-19 omar.polo if (start_at > r->width)
424 0ee198aa 2018-05-19 omar.polo break; // don't draw completion if the space isn't enough
426 f5e234d6 2018-05-18 omar.polo cs = cs->next;
429 f5e234d6 2018-05-18 omar.polo XFlush(r->d);
432 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
433 36a15a9f 2018-05-19 omar.polo // | prompt |
434 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
435 36a15a9f 2018-05-19 omar.polo // | completion |
436 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
437 36a15a9f 2018-05-19 omar.polo // | completion |
438 36a15a9f 2018-05-19 omar.polo // |-----------------------------------------------------------------|
439 36a15a9f 2018-05-19 omar.polo // TODO: dunno why but in the call to Xutf8DrawString, by logic,
440 36a15a9f 2018-05-19 omar.polo // should be padding and not padding*2, but the text doesn't seem to
441 36a15a9f 2018-05-19 omar.polo // be vertically centered otherwise....
442 36a15a9f 2018-05-19 omar.polo void draw_vertically(struct rendering *r, char *text, struct completions *cs) {
443 36a15a9f 2018-05-19 omar.polo int padding = 10; // TODO make this dynamic
445 c9a3bfaa 2018-05-21 omar.polo int height, width;
446 c9a3bfaa 2018-05-21 omar.polo text_extents("fjpgl", 5, r, &width, &height);
447 c9a3bfaa 2018-05-21 omar.polo int start_at = height + padding*2;
449 36a15a9f 2018-05-19 omar.polo XFillRectangle(r->d, r->w, r->completion_bg, 0, 0, r->width, r->height);
450 36a15a9f 2018-05-19 omar.polo XFillRectangle(r->d, r->w, r->prompt_bg, 0, 0, r->width, start_at);
452 c9a3bfaa 2018-05-21 omar.polo char *ps1_dup = strdupn(r->ps1);
453 c9a3bfaa 2018-05-21 omar.polo ps1_dup = ps1_dup == nil ? r->ps1 : ps1_dup;
454 c9a3bfaa 2018-05-21 omar.polo int ps1xlen = text_extents(ps1_dup, r->ps1len, r, nil, nil);
455 c9a3bfaa 2018-05-21 omar.polo free(ps1_dup);
457 c9a3bfaa 2018-05-21 omar.polo draw_string(r->ps1, r->ps1len, padding, padding*2, r, PROMPT);
458 c9a3bfaa 2018-05-21 omar.polo draw_string(text, strlen(text), padding + ps1xlen, padding*2, r, PROMPT);
460 36a15a9f 2018-05-19 omar.polo while (cs != nil) {
461 c9a3bfaa 2018-05-21 omar.polo enum text_type tt = cs->selected ? COMPL_HIGH : COMPL;
462 36a15a9f 2018-05-19 omar.polo GC h = cs->selected ? r->completion_highlighted_bg : r->completion_bg;
464 36a15a9f 2018-05-19 omar.polo int len = strlen(cs->completion);
465 c9a3bfaa 2018-05-21 omar.polo text_extents(cs->completion, len, r, &width, &height);
466 c9a3bfaa 2018-05-21 omar.polo XFillRectangle(r->d, r->w, h, 0, start_at, r->width, height + padding*2);
467 c9a3bfaa 2018-05-21 omar.polo draw_string(cs->completion, len, padding, start_at + padding*2, r, tt);
469 c9a3bfaa 2018-05-21 omar.polo start_at += height + padding *2;
471 0ee198aa 2018-05-19 omar.polo if (start_at > r->height)
472 0ee198aa 2018-05-19 omar.polo break; // don't draw completion if the space isn't enough
474 36a15a9f 2018-05-19 omar.polo cs = cs->next;
477 36a15a9f 2018-05-19 omar.polo XFlush(r->d);
480 36a15a9f 2018-05-19 omar.polo void draw(struct rendering *r, char *text, struct completions *cs) {
481 36a15a9f 2018-05-19 omar.polo if (r->horizontal_layout)
482 36a15a9f 2018-05-19 omar.polo draw_horizontally(r, text, cs);
484 36a15a9f 2018-05-19 omar.polo draw_vertically(r, text, cs);
487 f5e234d6 2018-05-18 omar.polo /* Set some WM stuff */
488 f5e234d6 2018-05-18 omar.polo void set_win_atoms_hints(Display *d, Window w, int width, int height) {
489 f5e234d6 2018-05-18 omar.polo Atom type;
490 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_WINDOW_TYPE_DOCK", false);
491 f5e234d6 2018-05-18 omar.polo XChangeProperty(
494 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_WINDOW_TYPE", false),
495 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
497 f5e234d6 2018-05-18 omar.polo PropModeReplace,
498 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
502 f5e234d6 2018-05-18 omar.polo /* some window managers honor this properties */
503 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_STATE_ABOVE", false);
504 f5e234d6 2018-05-18 omar.polo XChangeProperty(d,
506 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_STATE", false),
507 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
509 f5e234d6 2018-05-18 omar.polo PropModeReplace,
510 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
514 f5e234d6 2018-05-18 omar.polo type = XInternAtom(d, "_NET_WM_STATE_FOCUSED", false);
515 f5e234d6 2018-05-18 omar.polo XChangeProperty(d,
517 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "_NET_WM_STATE", false),
518 f5e234d6 2018-05-18 omar.polo XInternAtom(d, "ATOM", false),
520 f5e234d6 2018-05-18 omar.polo PropModeAppend,
521 f5e234d6 2018-05-18 omar.polo (unsigned char *)&type,
525 f5e234d6 2018-05-18 omar.polo // setting window hints
526 f5e234d6 2018-05-18 omar.polo XClassHint *class_hint = XAllocClassHint();
527 f5e234d6 2018-05-18 omar.polo if (class_hint == nil) {
528 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory for class hint\n");
529 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
531 7ef37ee0 2018-05-21 omar.polo class_hint->res_name = resname;
532 7ef37ee0 2018-05-21 omar.polo class_hint->res_class = resclass;
533 f5e234d6 2018-05-18 omar.polo XSetClassHint(d, w, class_hint);
534 f5e234d6 2018-05-18 omar.polo XFree(class_hint);
536 f5e234d6 2018-05-18 omar.polo XSizeHints *size_hint = XAllocSizeHints();
537 f5e234d6 2018-05-18 omar.polo if (size_hint == nil) {
538 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not allocate memory for size hint\n");
539 f5e234d6 2018-05-18 omar.polo exit(EX_UNAVAILABLE);
541 7ef37ee0 2018-05-21 omar.polo size_hint->flags = PMinSize | PBaseSize;
542 f5e234d6 2018-05-18 omar.polo size_hint->min_width = width;
543 f5e234d6 2018-05-18 omar.polo size_hint->base_width = width;
544 f5e234d6 2018-05-18 omar.polo size_hint->min_height = height;
545 f5e234d6 2018-05-18 omar.polo size_hint->base_height = height;
547 f5e234d6 2018-05-18 omar.polo XFlush(d);
550 f5e234d6 2018-05-18 omar.polo void get_wh(Display *d, Window *w, int *width, int *height) {
551 f5e234d6 2018-05-18 omar.polo XWindowAttributes win_attr;
552 f5e234d6 2018-05-18 omar.polo XGetWindowAttributes(d, *w, &win_attr);
553 f5e234d6 2018-05-18 omar.polo *height = win_attr.height;
554 f5e234d6 2018-05-18 omar.polo *width = win_attr.width;
557 f5e234d6 2018-05-18 omar.polo // I know this may seem a little hackish BUT is the only way I managed
558 f5e234d6 2018-05-18 omar.polo // to actually grab that goddam keyboard. Only one call to
559 f5e234d6 2018-05-18 omar.polo // XGrabKeyboard does not always end up with the keyboard grabbed!
560 f5e234d6 2018-05-18 omar.polo int take_keyboard(Display *d, Window w) {
561 686e9237 2018-05-18 omar.polo int i;
562 686e9237 2018-05-18 omar.polo for (i = 0; i < 100; i++) {
563 686e9237 2018-05-18 omar.polo if (XGrabKeyboard(d, w, True, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
564 686e9237 2018-05-18 omar.polo return 1;
565 686e9237 2018-05-18 omar.polo usleep(1000);
567 686e9237 2018-05-18 omar.polo return 0;
570 f5e234d6 2018-05-18 omar.polo void release_keyboard(Display *d) {
571 686e9237 2018-05-18 omar.polo XUngrabKeyboard(d, CurrentTime);
574 f5e234d6 2018-05-18 omar.polo int parse_integer(const char *str, int default_value, int max) {
575 f5e234d6 2018-05-18 omar.polo int len = strlen(str);
576 f5e234d6 2018-05-18 omar.polo if (len > 0 && str[len-1] == '%') {
577 f5e234d6 2018-05-18 omar.polo char *cpy = strdup(str);
578 f5e234d6 2018-05-18 omar.polo check_allocation(cpy);
579 f5e234d6 2018-05-18 omar.polo cpy[len-1] = '\0';
580 f5e234d6 2018-05-18 omar.polo int val = parse_integer(cpy, default_value, max);
581 f5e234d6 2018-05-18 omar.polo free(cpy);
582 f5e234d6 2018-05-18 omar.polo return val * max / 100;
585 f5e234d6 2018-05-18 omar.polo errno = 0;
586 f5e234d6 2018-05-18 omar.polo char *ep;
587 f5e234d6 2018-05-18 omar.polo long lval = strtol(str, &ep, 10);
588 f5e234d6 2018-05-18 omar.polo if (str[0] == '\0' || *ep != '\0') { // NaN
589 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "'%s' is not a valid number! Using %d as default.\n", str, default_value);
590 f5e234d6 2018-05-18 omar.polo return default_value;
592 f5e234d6 2018-05-18 omar.polo if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
593 f5e234d6 2018-05-18 omar.polo (lval > INT_MAX || lval < INT_MIN)) {
594 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "%s out of range! Using %d as default.\n", str, default_value);
595 f5e234d6 2018-05-18 omar.polo return default_value;
597 f5e234d6 2018-05-18 omar.polo return lval;
600 f5e234d6 2018-05-18 omar.polo int parse_int_with_middle(const char *str, int default_value, int max, int self) {
601 f5e234d6 2018-05-18 omar.polo if (!strcmp(str, "middle")) {
602 f5e234d6 2018-05-18 omar.polo return (max - self)/2;
604 f5e234d6 2018-05-18 omar.polo return parse_integer(str, default_value, max);
607 f5e234d6 2018-05-18 omar.polo int main() {
608 95b27a5e 2018-05-19 omar.polo char **lines = calloc(INITIAL_ITEMS, sizeof(char*));
609 6da98882 2018-05-20 omar.polo int nlines = readlines(&lines, INITIAL_ITEMS);
611 f5e234d6 2018-05-18 omar.polo setlocale(LC_ALL, getenv("LANG"));
613 f5e234d6 2018-05-18 omar.polo enum state status = LOOPING;
615 f5e234d6 2018-05-18 omar.polo // where the monitor start (used only with xinerama)
616 f5e234d6 2018-05-18 omar.polo int offset_x = 0;
617 f5e234d6 2018-05-18 omar.polo int offset_y = 0;
619 f5e234d6 2018-05-18 omar.polo // width and height of the window
620 f5e234d6 2018-05-18 omar.polo int width = 400;
621 f5e234d6 2018-05-18 omar.polo int height = 20;
623 f5e234d6 2018-05-18 omar.polo // position on the screen
624 f5e234d6 2018-05-18 omar.polo int x = 0;
625 f5e234d6 2018-05-18 omar.polo int y = 0;
627 8758854a 2018-05-20 omar.polo char *ps1 = strdup("$ ");
628 8758854a 2018-05-20 omar.polo check_allocation(ps1);
630 9e94fcbe 2018-05-22 omar.polo char *fontname = strdup(default_fontname);
631 f5e234d6 2018-05-18 omar.polo check_allocation(fontname);
633 f5e234d6 2018-05-18 omar.polo int textlen = 10;
634 f5e234d6 2018-05-18 omar.polo char *text = malloc(textlen * sizeof(char));
635 f5e234d6 2018-05-18 omar.polo check_allocation(text);
637 f5e234d6 2018-05-18 omar.polo struct completions *cs = filter(text, lines);
638 f5e234d6 2018-05-18 omar.polo bool nothing_selected = true;
640 f5e234d6 2018-05-18 omar.polo // start talking to xorg
641 f5e234d6 2018-05-18 omar.polo Display *d = XOpenDisplay(nil);
642 f5e234d6 2018-05-18 omar.polo if (d == nil) {
643 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "Could not open display!\n");
644 f5e234d6 2018-05-18 omar.polo return EX_UNAVAILABLE;
647 f5e234d6 2018-05-18 omar.polo // get display size
648 f5e234d6 2018-05-18 omar.polo // XXX: is getting the default root window dimension correct?
649 f5e234d6 2018-05-18 omar.polo XWindowAttributes xwa;
650 f5e234d6 2018-05-18 omar.polo XGetWindowAttributes(d, DefaultRootWindow(d), &xwa);
651 f5e234d6 2018-05-18 omar.polo int d_width = xwa.width;
652 f5e234d6 2018-05-18 omar.polo int d_height = xwa.height;
654 f5e234d6 2018-05-18 omar.polo #ifdef USE_XINERAMA
655 f5e234d6 2018-05-18 omar.polo if (XineramaIsActive(d)) {
656 7ca8829b 2018-05-21 omar.polo // find the mice
657 7ca8829b 2018-05-21 omar.polo int number_of_screens = XScreenCount(d);
658 7ca8829b 2018-05-21 omar.polo bool result;
659 7ca8829b 2018-05-21 omar.polo Window r;
660 7ca8829b 2018-05-21 omar.polo Window root;
661 7ca8829b 2018-05-21 omar.polo int root_x, root_y, win_x, win_y;
662 7ca8829b 2018-05-21 omar.polo unsigned int mask;
663 7ca8829b 2018-05-21 omar.polo bool res;
664 7ca8829b 2018-05-21 omar.polo for (int i = 0; i < number_of_screens; ++i) {
665 7ca8829b 2018-05-21 omar.polo root = XRootWindow(d, i);
666 7ca8829b 2018-05-21 omar.polo res = XQueryPointer(d, root, &r, &r, &root_x, &root_y, &win_x, &win_y, &mask);
667 7ca8829b 2018-05-21 omar.polo if (res) break;
669 7ca8829b 2018-05-21 omar.polo if (!res) {
670 7ca8829b 2018-05-21 omar.polo fprintf(stderr, "No mouse found.\n");
671 7ca8829b 2018-05-21 omar.polo root_x = 0;
672 7ca8829b 2018-05-21 omar.polo root_y = 0;
675 7ca8829b 2018-05-21 omar.polo // now find in which monitor the mice is on
676 f5e234d6 2018-05-18 omar.polo int monitors;
677 f5e234d6 2018-05-18 omar.polo XineramaScreenInfo *info = XineramaQueryScreens(d, &monitors);
678 7ca8829b 2018-05-21 omar.polo if (info) {
679 f5e234d6 2018-05-18 omar.polo for (int i = 0; i < monitors; ++i) {
680 7ca8829b 2018-05-21 omar.polo if (info[i].x_org <= root_x && root_x <= (info[i].x_org + info[i].width)
681 7ca8829b 2018-05-21 omar.polo && info[i].y_org <= root_y && root_y <= (info[i].y_org + info[i].height)) {
682 7ca8829b 2018-05-21 omar.polo offset_x = info[i].x_org;
683 7ca8829b 2018-05-21 omar.polo offset_y = info[i].y_org;
684 f5e234d6 2018-05-18 omar.polo d_width = info[i].width;
685 f5e234d6 2018-05-18 omar.polo d_height = info[i].height;
686 7ca8829b 2018-05-21 omar.polo break;
690 f5e234d6 2018-05-18 omar.polo XFree(info);
692 f5e234d6 2018-05-18 omar.polo #endif
694 f5e234d6 2018-05-18 omar.polo Colormap cmap = DefaultColormap(d, DefaultScreen(d));
695 f5e234d6 2018-05-18 omar.polo XColor p_fg, p_bg,
696 f5e234d6 2018-05-18 omar.polo compl_fg, compl_bg,
697 f5e234d6 2018-05-18 omar.polo compl_highlighted_fg, compl_highlighted_bg;
699 36a15a9f 2018-05-19 omar.polo bool horizontal_layout = true;
701 f5e234d6 2018-05-18 omar.polo // read resource
702 f5e234d6 2018-05-18 omar.polo XrmInitialize();
703 f5e234d6 2018-05-18 omar.polo char *xrm = XResourceManagerString(d);
704 347d23da 2018-05-19 omar.polo XrmDatabase xdb = nil;
705 f5e234d6 2018-05-18 omar.polo if (xrm != nil) {
706 347d23da 2018-05-19 omar.polo xdb = XrmGetStringDatabase(xrm);
707 f5e234d6 2018-05-18 omar.polo XrmValue value;
708 f5e234d6 2018-05-18 omar.polo char *datatype[20];
710 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.font", "*", datatype, &value) == true) {
711 f5e234d6 2018-05-18 omar.polo fontname = strdup(value.addr);
712 f5e234d6 2018-05-18 omar.polo check_allocation(fontname);
715 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no font defined, using %s\n", fontname);
717 36a15a9f 2018-05-19 omar.polo if (XrmGetResource(xdb, "MyMenu.layout", "*", datatype, &value) == true) {
718 36a15a9f 2018-05-19 omar.polo char *v = strdup(value.addr);
719 36a15a9f 2018-05-19 omar.polo check_allocation(v);
720 36a15a9f 2018-05-19 omar.polo horizontal_layout = !strcmp(v, "horizontal");
721 36a15a9f 2018-05-19 omar.polo free(v);
724 36a15a9f 2018-05-19 omar.polo fprintf(stderr, "no layout defined, using horizontal\n");
726 8758854a 2018-05-20 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt", "*", datatype, &value) == true) {
727 8758854a 2018-05-20 omar.polo free(ps1);
728 8758854a 2018-05-20 omar.polo ps1 = normalize_str(value.addr);
729 8758854a 2018-05-20 omar.polo } else
730 8758854a 2018-05-20 omar.polo fprintf(stderr, "no prompt defined, using \"%s\" as default\n", ps1);
732 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.width", "*", datatype, &value) == true)
733 f5e234d6 2018-05-18 omar.polo width = parse_integer(value.addr, width, d_width);
735 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no width defined, using %d\n", width);
737 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.height", "*", datatype, &value) == true)
738 f5e234d6 2018-05-18 omar.polo height = parse_integer(value.addr, height, d_height);
740 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no height defined, using %d\n", height);
742 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.x", "*", datatype, &value) == true)
743 f5e234d6 2018-05-18 omar.polo x = parse_int_with_middle(value.addr, x, d_width, width);
745 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no x defined, using %d\n", width);
747 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.y", "*", datatype, &value) == true)
748 f5e234d6 2018-05-18 omar.polo y = parse_int_with_middle(value.addr, y, d_height, height);
750 f5e234d6 2018-05-18 omar.polo fprintf(stderr, "no y defined, using %d\n", height);
752 f5e234d6 2018-05-18 omar.polo XColor tmp;
753 f5e234d6 2018-05-18 omar.polo // TODO: tmp needs to be free'd after every allocation?
755 f5e234d6 2018-05-18 omar.polo // prompt
756 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt.foreground", "*", datatype, &value) == true)
757 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &p_fg, &tmp);
759 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &p_fg, &tmp);
761 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.prompt.background", "*", datatype, &value) == true)
762 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &p_bg, &tmp);
764 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &p_bg, &tmp);
766 f5e234d6 2018-05-18 omar.polo // completion
767 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion.foreground", "*", datatype, &value) == true)
768 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_fg, &tmp);
770 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_fg, &tmp);
772 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion.background", "*", datatype, &value) == true)
773 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_bg, &tmp);
775 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_bg, &tmp);
777 f5e234d6 2018-05-18 omar.polo // completion highlighted
778 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion_highlighted.foreground", "*", datatype, &value) == true)
779 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_highlighted_fg, &tmp);
781 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_highlighted_fg, &tmp);
783 f5e234d6 2018-05-18 omar.polo if (XrmGetResource(xdb, "MyMenu.completion_highlighted.background", "*", datatype, &value) == true)
784 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, value.addr, &compl_highlighted_bg, &tmp);
786 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_highlighted_bg, &tmp);
787 f5e234d6 2018-05-18 omar.polo } else {
788 f5e234d6 2018-05-18 omar.polo XColor tmp;
789 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &p_fg, &tmp);
790 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &p_bg, &tmp);
791 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_fg, &tmp);
792 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_bg, &tmp);
793 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "black", &compl_highlighted_fg, &tmp);
794 f5e234d6 2018-05-18 omar.polo XAllocNamedColor(d, cmap, "white", &compl_highlighted_bg, &tmp);
797 f5e234d6 2018-05-18 omar.polo // load the font
798 347d23da 2018-05-19 omar.polo /* XFontStruct *font = XLoadQueryFont(d, fontname); */
799 347d23da 2018-05-19 omar.polo /* if (font == nil) { */
800 347d23da 2018-05-19 omar.polo /* fprintf(stderr, "Unable to load %s font\n", fontname); */
801 347d23da 2018-05-19 omar.polo /* font = XLoadQueryFont(d, "fixed"); */
802 347d23da 2018-05-19 omar.polo /* } */
803 347d23da 2018-05-19 omar.polo // load the font
804 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
805 c9a3bfaa 2018-05-21 omar.polo XftFont *font = XftFontOpenName(d, DefaultScreen(d), fontname);
807 347d23da 2018-05-19 omar.polo char **missing_charset_list;
808 347d23da 2018-05-19 omar.polo int missing_charset_count;
809 347d23da 2018-05-19 omar.polo XFontSet font = XCreateFontSet(d, fontname, &missing_charset_list, &missing_charset_count, nil);
810 f5e234d6 2018-05-18 omar.polo if (font == nil) {
811 347d23da 2018-05-19 omar.polo fprintf(stderr, "Unable to load the font(s) %s\n", fontname);
812 347d23da 2018-05-19 omar.polo return EX_UNAVAILABLE;
814 c9a3bfaa 2018-05-21 omar.polo #endif
816 f5e234d6 2018-05-18 omar.polo // create the window
817 f5e234d6 2018-05-18 omar.polo XSetWindowAttributes attr;
818 55bd6842 2018-05-21 omar.polo attr.override_redirect = true;
820 f5e234d6 2018-05-18 omar.polo Window w = XCreateWindow(d, // display
821 f5e234d6 2018-05-18 omar.polo DefaultRootWindow(d), // parent
822 f5e234d6 2018-05-18 omar.polo x + offset_x, y + offset_y, // x y
823 f5e234d6 2018-05-18 omar.polo width, height, // w h
824 f5e234d6 2018-05-18 omar.polo 0, // border width
825 f5e234d6 2018-05-18 omar.polo DefaultDepth(d, DefaultScreen(d)), // depth
826 f5e234d6 2018-05-18 omar.polo InputOutput, // class
827 f5e234d6 2018-05-18 omar.polo DefaultVisual(d, DefaultScreen(d)), // visual
828 55bd6842 2018-05-21 omar.polo CWOverrideRedirect, // value mask
829 f5e234d6 2018-05-18 omar.polo &attr);
831 f5e234d6 2018-05-18 omar.polo set_win_atoms_hints(d, w, width, height);
833 f5e234d6 2018-05-18 omar.polo // we want some events
834 c9a3bfaa 2018-05-21 omar.polo XSelectInput(d, w, StructureNotifyMask | KeyPressMask | KeymapStateMask);
836 f5e234d6 2018-05-18 omar.polo // make the window appear on the screen
837 f5e234d6 2018-05-18 omar.polo XMapWindow(d, w);
839 f5e234d6 2018-05-18 omar.polo // wait for the MapNotify event (i.e. the event "window rendered")
840 f5e234d6 2018-05-18 omar.polo for (;;) {
841 f5e234d6 2018-05-18 omar.polo XEvent e;
842 f5e234d6 2018-05-18 omar.polo XNextEvent(d, &e);
843 f5e234d6 2018-05-18 omar.polo if (e.type == MapNotify)
844 f5e234d6 2018-05-18 omar.polo break;
847 f5e234d6 2018-05-18 omar.polo // get the *real* width & height after the window was rendered
848 f5e234d6 2018-05-18 omar.polo get_wh(d, &w, &width, &height);
850 f5e234d6 2018-05-18 omar.polo // grab keyboard
851 f5e234d6 2018-05-18 omar.polo take_keyboard(d, w);
853 f5e234d6 2018-05-18 omar.polo // Create some graphics contexts
854 f5e234d6 2018-05-18 omar.polo XGCValues values;
855 347d23da 2018-05-19 omar.polo /* values.font = font->fid; */
857 f5e234d6 2018-05-18 omar.polo struct rendering r = {
858 f5e234d6 2018-05-18 omar.polo .d = d,
859 f5e234d6 2018-05-18 omar.polo .w = w,
860 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
861 c9a3bfaa 2018-05-21 omar.polo .font = font,
863 c9a3bfaa 2018-05-21 omar.polo .font = &font,
864 c9a3bfaa 2018-05-21 omar.polo #endif
865 347d23da 2018-05-19 omar.polo .prompt = XCreateGC(d, w, 0, &values),
866 347d23da 2018-05-19 omar.polo .prompt_bg = XCreateGC(d, w, 0, &values),
867 347d23da 2018-05-19 omar.polo .completion = XCreateGC(d, w, 0, &values),
868 347d23da 2018-05-19 omar.polo .completion_bg = XCreateGC(d, w, 0, &values),
869 347d23da 2018-05-19 omar.polo .completion_highlighted = XCreateGC(d, w, 0, &values),
870 347d23da 2018-05-19 omar.polo .completion_highlighted_bg = XCreateGC(d, w, 0, &values),
871 f5e234d6 2018-05-18 omar.polo .width = width,
872 f5e234d6 2018-05-18 omar.polo .height = height,
873 8758854a 2018-05-20 omar.polo .horizontal_layout = horizontal_layout,
874 8758854a 2018-05-20 omar.polo .ps1 = ps1,
875 8758854a 2018-05-20 omar.polo .ps1len = strlen(ps1)
878 7ca8829b 2018-05-21 omar.polo #ifdef USE_XFT
879 7ca8829b 2018-05-21 omar.polo r.xftdraw = XftDrawCreate(d, w, DefaultVisual(d, 0), DefaultColormap(d, 0));
881 7ca8829b 2018-05-21 omar.polo // prompt
882 7ca8829b 2018-05-21 omar.polo XRenderColor xrcolor;
883 7ca8829b 2018-05-21 omar.polo xrcolor.red = p_fg.red;
884 7ca8829b 2018-05-21 omar.polo xrcolor.green = p_fg.red;
885 7ca8829b 2018-05-21 omar.polo xrcolor.blue = p_fg.red;
886 7ca8829b 2018-05-21 omar.polo xrcolor.alpha = 65535;
887 7ca8829b 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_prompt);
889 7ca8829b 2018-05-21 omar.polo // completion
890 7ca8829b 2018-05-21 omar.polo xrcolor.red = compl_fg.red;
891 7ca8829b 2018-05-21 omar.polo xrcolor.green = compl_fg.green;
892 7ca8829b 2018-05-21 omar.polo xrcolor.blue = compl_fg.blue;
893 7ca8829b 2018-05-21 omar.polo xrcolor.alpha = 65535;
894 7ca8829b 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_completion);
896 7ca8829b 2018-05-21 omar.polo // completion highlighted
897 7ca8829b 2018-05-21 omar.polo xrcolor.red = compl_highlighted_fg.red;
898 7ca8829b 2018-05-21 omar.polo xrcolor.green = compl_highlighted_fg.green;
899 7ca8829b 2018-05-21 omar.polo xrcolor.blue = compl_highlighted_fg.blue;
900 7ca8829b 2018-05-21 omar.polo xrcolor.alpha = 65535;
901 7ca8829b 2018-05-21 omar.polo XftColorAllocValue(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &xrcolor, &r.xft_completion_highlighted);
902 c9a3bfaa 2018-05-21 omar.polo #endif
904 f5e234d6 2018-05-18 omar.polo // load the colors in our GCs
905 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.prompt, p_fg.pixel);
906 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.prompt_bg, p_bg.pixel);
907 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion, compl_fg.pixel);
908 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_bg, compl_bg.pixel);
909 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_highlighted, compl_highlighted_fg.pixel);
910 f5e234d6 2018-05-18 omar.polo XSetForeground(d, r.completion_highlighted_bg, compl_highlighted_bg.pixel);
912 347d23da 2018-05-19 omar.polo // open the X input method
913 347d23da 2018-05-19 omar.polo XIM xim = XOpenIM(d, xdb, resname, resclass);
914 347d23da 2018-05-19 omar.polo check_allocation(xim);
916 347d23da 2018-05-19 omar.polo XIMStyles *xis = nil;
917 347d23da 2018-05-19 omar.polo if (XGetIMValues(xim, XNQueryInputStyle, &xis, NULL) || !xis) {
918 347d23da 2018-05-19 omar.polo fprintf(stderr, "Input Styles could not be retrieved\n");
919 347d23da 2018-05-19 omar.polo return EX_UNAVAILABLE;
922 347d23da 2018-05-19 omar.polo XIMStyle bestMatchStyle = 0;
923 347d23da 2018-05-19 omar.polo for (int i = 0; i < xis->count_styles; ++i) {
924 347d23da 2018-05-19 omar.polo XIMStyle ts = xis->supported_styles[i];
925 347d23da 2018-05-19 omar.polo if (ts == (XIMPreeditNothing | XIMStatusNothing)) {
926 347d23da 2018-05-19 omar.polo bestMatchStyle = ts;
927 347d23da 2018-05-19 omar.polo break;
930 347d23da 2018-05-19 omar.polo XFree(xis);
932 347d23da 2018-05-19 omar.polo if (!bestMatchStyle) {
933 347d23da 2018-05-19 omar.polo fprintf(stderr, "No matching input style could be determined\n");
936 347d23da 2018-05-19 omar.polo XIC xic = XCreateIC(xim, XNInputStyle, bestMatchStyle, XNClientWindow, w, XNFocusWindow, w, NULL);
937 347d23da 2018-05-19 omar.polo check_allocation(xic);
939 f5e234d6 2018-05-18 omar.polo // draw the window for the first time
940 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
942 f5e234d6 2018-05-18 omar.polo // main loop
943 f5e234d6 2018-05-18 omar.polo while (status == LOOPING) {
944 f5e234d6 2018-05-18 omar.polo XEvent e;
945 f5e234d6 2018-05-18 omar.polo XNextEvent(d, &e);
947 347d23da 2018-05-19 omar.polo if (XFilterEvent(&e, w))
948 347d23da 2018-05-19 omar.polo continue;
950 f5e234d6 2018-05-18 omar.polo switch (e.type) {
951 f5e234d6 2018-05-18 omar.polo case KeymapNotify:
952 f5e234d6 2018-05-18 omar.polo XRefreshKeyboardMapping(&e.xmapping);
953 f5e234d6 2018-05-18 omar.polo break;
955 347d23da 2018-05-19 omar.polo case KeyPress: {
956 347d23da 2018-05-19 omar.polo XKeyPressedEvent *ev = (XKeyPressedEvent*)&e;
958 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Tab)) {
959 347d23da 2018-05-19 omar.polo bool shift = (ev->state & ShiftMask);
960 347d23da 2018-05-19 omar.polo struct completions *n = shift ? compl_select_prev(cs, nothing_selected)
961 347d23da 2018-05-19 omar.polo : compl_select_next(cs, nothing_selected);
962 347d23da 2018-05-19 omar.polo if (n != nil) {
963 347d23da 2018-05-19 omar.polo nothing_selected = false;
964 347d23da 2018-05-19 omar.polo free(text);
965 347d23da 2018-05-19 omar.polo text = strdup(n->completion);
966 347d23da 2018-05-19 omar.polo if (text == nil) {
967 347d23da 2018-05-19 omar.polo fprintf(stderr, "Memory allocation error!\n");
968 347d23da 2018-05-19 omar.polo status = ERR;
969 347d23da 2018-05-19 omar.polo break;
971 347d23da 2018-05-19 omar.polo textlen = strlen(text);
973 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
974 f5e234d6 2018-05-18 omar.polo break;
977 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_BackSpace)) {
978 f5e234d6 2018-05-18 omar.polo nothing_selected = true;
979 f5e234d6 2018-05-18 omar.polo popc(text, textlen);
980 f5e234d6 2018-05-18 omar.polo update_completions(cs, text, lines);
981 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
982 f5e234d6 2018-05-18 omar.polo break;
985 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Return)) {
986 347d23da 2018-05-19 omar.polo status = OK;
987 347d23da 2018-05-19 omar.polo break;
990 347d23da 2018-05-19 omar.polo if (ev->keycode == XKeysymToKeycode(d, XK_Escape)) {
991 347d23da 2018-05-19 omar.polo status = ERR;
992 347d23da 2018-05-19 omar.polo break;
995 347d23da 2018-05-19 omar.polo // try to read what the user pressed
996 347d23da 2018-05-19 omar.polo int symbol = 0;
997 347d23da 2018-05-19 omar.polo Status s = 0;
998 347d23da 2018-05-19 omar.polo Xutf8LookupString(xic, ev, (char*)&symbol, 4, 0, &s);
1000 347d23da 2018-05-19 omar.polo if (s == XBufferOverflow) {
1001 347d23da 2018-05-19 omar.polo // should not happen since there are no utf-8 characters
1002 347d23da 2018-05-19 omar.polo // larger than 24bits, but is something to be aware of when
1003 347d23da 2018-05-19 omar.polo // used to directly write to a string buffer
1004 347d23da 2018-05-19 omar.polo fprintf(stderr, "Buffer overflow when trying to create keyboard symbol map.\n");
1005 347d23da 2018-05-19 omar.polo break;
1007 347d23da 2018-05-19 omar.polo char *str = (char*)&symbol;
1009 347d23da 2018-05-19 omar.polo if (ev->state & ControlMask) {
1010 347d23da 2018-05-19 omar.polo // check for some key bindings
1011 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-u
1012 f5e234d6 2018-05-18 omar.polo nothing_selected = true;
1013 347d23da 2018-05-19 omar.polo for (int i = 0; i < textlen; ++i)
1014 347d23da 2018-05-19 omar.polo text[i] = 0;
1015 f5e234d6 2018-05-18 omar.polo update_completions(cs, text, lines);
1017 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-h
1018 347d23da 2018-05-19 omar.polo nothing_selected = true;
1019 347d23da 2018-05-19 omar.polo popc(text, textlen);
1020 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1022 347d23da 2018-05-19 omar.polo if (!strcmp(str, "")) { // C-w
1023 347d23da 2018-05-19 omar.polo nothing_selected = true;
1025 347d23da 2018-05-19 omar.polo // `textlen` is the length of the allocated string, not the
1026 347d23da 2018-05-19 omar.polo // length of the ACTUAL string
1027 347d23da 2018-05-19 omar.polo int p = strlen(text) - 1;
1028 347d23da 2018-05-19 omar.polo if (p >= 0) { // delete the current char
1029 347d23da 2018-05-19 omar.polo text[p] = 0;
1032 347d23da 2018-05-19 omar.polo while (p >= 0 && isalnum(text[p])) {
1033 347d23da 2018-05-19 omar.polo text[p] = 0;
1036 347d23da 2018-05-19 omar.polo // erase also trailing white space
1037 347d23da 2018-05-19 omar.polo while (p >= 0 && isspace(text[p])) {
1038 347d23da 2018-05-19 omar.polo text[p] = 0;
1041 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1043 347d23da 2018-05-19 omar.polo if (!strcmp(str, "\r")) { // C-m
1044 347d23da 2018-05-19 omar.polo status = OK;
1046 347d23da 2018-05-19 omar.polo draw(&r, text, cs);
1047 f5e234d6 2018-05-18 omar.polo break;
1050 347d23da 2018-05-19 omar.polo int str_len = strlen(str);
1051 347d23da 2018-05-19 omar.polo for (int i = 0; i < str_len; ++i) {
1052 347d23da 2018-05-19 omar.polo textlen = pushc(&text, textlen, str[i]);
1053 347d23da 2018-05-19 omar.polo if (textlen == -1) {
1054 347d23da 2018-05-19 omar.polo fprintf(stderr, "Memory allocation error\n");
1055 347d23da 2018-05-19 omar.polo status = ERR;
1056 347d23da 2018-05-19 omar.polo break;
1058 347d23da 2018-05-19 omar.polo nothing_selected = true;
1059 347d23da 2018-05-19 omar.polo update_completions(cs, text, lines);
1063 f5e234d6 2018-05-18 omar.polo draw(&r, text, cs);
1064 f5e234d6 2018-05-18 omar.polo break;
1066 f5e234d6 2018-05-18 omar.polo default:
1067 347d23da 2018-05-19 omar.polo fprintf(stderr, "Unknown event %d\n", e.type);
1071 f5e234d6 2018-05-18 omar.polo release_keyboard(d);
1073 f5e234d6 2018-05-18 omar.polo if (status == OK)
1074 f5e234d6 2018-05-18 omar.polo printf("%s\n", text);
1076 6da98882 2018-05-20 omar.polo for (int i = 0; i < nlines; ++i) {
1077 6da98882 2018-05-20 omar.polo free(lines[i]);
1080 c9a3bfaa 2018-05-21 omar.polo #ifdef USE_XFT
1081 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_prompt);
1082 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_completion);
1083 c9a3bfaa 2018-05-21 omar.polo XftColorFree(d, DefaultVisual(d, 0), DefaultColormap(d, 0), &r.xft_completion_highlighted);
1084 c9a3bfaa 2018-05-21 omar.polo #endif
1086 8758854a 2018-05-20 omar.polo free(ps1);
1087 f5e234d6 2018-05-18 omar.polo free(fontname);
1088 f5e234d6 2018-05-18 omar.polo free(text);
1089 95b27a5e 2018-05-19 omar.polo free(lines);
1090 f5e234d6 2018-05-18 omar.polo compl_delete(cs);
1092 8758854a 2018-05-20 omar.polo XDestroyWindow(d, w);
1093 f5e234d6 2018-05-18 omar.polo XCloseDisplay(d);
1095 f5e234d6 2018-05-18 omar.polo return status == OK ? 0 : 1;
