a7732690 |
1 | #include <err.h> |
2 | #include <stdio.h> |
3 | #include <stdlib.h> |
4 | #include <string.h> |
5 | #include <unistd.h> |
6 | #include <X11/Xlib.h> |
7 | #include <X11/Xutil.h> |
f644b8bc |
8 | #include <X11/Xresource.h> |
858338d9 |
9 | #include <X11/XKBlib.h> |
dbeb9940 |
10 | #include <X11/Xft/Xft.h> |
858338d9 |
11 | |
d2435fcd |
12 | #define PROGNAME "xmenu" |
858338d9 |
13 | #define ITEMPREV 0 |
14 | #define ITEMNEXT 1 |
a7732690 |
15 | |
16 | /* macros */ |
17 | #define LEN(x) (sizeof (x) / sizeof (x[0])) |
f1583285 |
18 | #define MAX(x,y) ((x)>(y)?(x):(y)) |
d8a7caf2 |
19 | #define MIN(x,y) ((x)<(y)?(x):(y)) |
a7732690 |
20 | |
21 | /* color enum */ |
22 | enum {ColorFG, ColorBG, ColorLast}; |
23 | |
24 | /* draw context structure */ |
25 | struct DC { |
dbeb9940 |
26 | XftColor normal[ColorLast]; |
27 | XftColor selected[ColorLast]; |
28 | XftColor decoration[ColorLast]; |
a7732690 |
29 | |
30 | Drawable d; |
31 | GC gc; |
dbeb9940 |
32 | XftFont *font; |
a7732690 |
33 | }; |
34 | |
35 | /* menu geometry structure */ |
36 | struct Geometry { |
37 | int itemb; /* item border */ |
38 | int itemw; /* item width */ |
39 | int itemh; /* item height */ |
a80fee22 |
40 | int border; /* window border width */ |
41 | int separator; /* menu separator width */ |
a7732690 |
42 | }; |
43 | |
44 | /* screen geometry structure */ |
45 | struct ScreenGeometry { |
46 | int cursx, cursy; /* cursor position */ |
47 | int screenw, screenh; /* screen width and height */ |
48 | }; |
49 | |
50 | /* menu item structure */ |
51 | struct Item { |
d8a7caf2 |
52 | char *label; /* string to be drawed on menu */ |
53 | char *output; /* string to be outputed when item is clicked */ |
54 | int y; /* item y position relative to menu */ |
55 | int h; /* item height */ |
56 | size_t labellen; /* strlen(label) */ |
858338d9 |
57 | struct Item *prev; /* previous item */ |
d8a7caf2 |
58 | struct Item *next; /* next item */ |
59 | struct Menu *submenu; /* submenu spawned by clicking on item */ |
a7732690 |
60 | }; |
61 | |
62 | /* menu structure */ |
63 | struct Menu { |
d8a7caf2 |
64 | struct Menu *parent; /* parent menu */ |
65 | struct Item *caller; /* item that spawned the menu */ |
66 | struct Item *list; /* list of items contained by the menu */ |
67 | struct Item *selected; /* item currently selected in the menu */ |
68 | int x, y, w, h; /* menu geometry */ |
69 | unsigned level; /* menu level relative to root */ |
70 | Drawable pixmap; /* pixmap to draw the menu on */ |
dbeb9940 |
71 | XftDraw *draw; |
d8a7caf2 |
72 | Window win; /* menu window to map on the screen */ |
a7732690 |
73 | }; |
74 | |
75 | /* function declarations */ |
dbeb9940 |
76 | static void getcolor(const char *s, XftColor *color); |
f644b8bc |
77 | static void getresources(void); |
a7732690 |
78 | static void setupdc(void); |
79 | static void setupgeom(void); |
a80fee22 |
80 | static struct Item *allocitem(const char *label, const char *output); |
a7732690 |
81 | static struct Menu *allocmenu(struct Menu *parent, struct Item *list, unsigned level); |
f15fc339 |
82 | static void getmenuitem(Window win, int y, struct Menu **menu_ret, struct Item **item_ret); |
a7732690 |
83 | static void drawmenu(void); |
84 | static void calcscreengeom(void); |
85 | static void calcmenu(struct Menu *menu); |
85003546 |
86 | static void grabpointer(void); |
87 | static void grabkeyboard(void); |
a7732690 |
88 | static void setcurrmenu(struct Menu *currmenu_new); |
89 | static void parsestdin(void); |
90 | static void run(void); |
f15fc339 |
91 | static void freewindow(struct Menu *menu); |
08f16589 |
92 | static void cleanup(void); |
a7732690 |
93 | static void usage(void); |
94 | |
95 | /* X variables */ |
96 | static Colormap colormap; |
97 | static Display *dpy; |
dbeb9940 |
98 | static Visual *visual; |
a7732690 |
99 | static Window rootwin; |
100 | static int screen; |
101 | static struct DC dc; |
102 | |
103 | /* menu variables */ |
104 | static struct Menu *rootmenu = NULL; |
105 | static struct Menu *currmenu = NULL; |
d2435fcd |
106 | static char **menutitle; |
107 | static int menutitlecount; |
a7732690 |
108 | |
109 | /* geometry variables */ |
110 | static struct Geometry geom; |
a80fee22 |
111 | static struct ScreenGeometry screengeom; |
a7732690 |
112 | |
a7732690 |
113 | #include "config.h" |
114 | |
115 | int |
116 | main(int argc, char *argv[]) |
117 | { |
118 | int ch; |
119 | |
27443900 |
120 | while ((ch = getopt(argc, argv, "")) != -1) { |
a7732690 |
121 | switch (ch) { |
a7732690 |
122 | default: |
123 | usage(); |
124 | break; |
125 | } |
126 | } |
127 | argc -= optind; |
128 | argv += optind; |
129 | |
d2435fcd |
130 | menutitle = argv; |
131 | menutitlecount = argc; |
132 | |
a7732690 |
133 | /* open connection to server and set X variables */ |
134 | if ((dpy = XOpenDisplay(NULL)) == NULL) |
135 | errx(1, "cannot open display"); |
136 | screen = DefaultScreen(dpy); |
dbeb9940 |
137 | visual = DefaultVisual(dpy, screen); |
a7732690 |
138 | rootwin = RootWindow(dpy, screen); |
139 | colormap = DefaultColormap(dpy, screen); |
21a9aaec |
140 | |
a7732690 |
141 | /* setup */ |
f644b8bc |
142 | getresources(); |
a7732690 |
143 | setupdc(); |
144 | setupgeom(); |
a7732690 |
145 | |
146 | /* generate menus and recalculate them */ |
147 | parsestdin(); |
148 | if (rootmenu == NULL) |
149 | errx(1, "no menu generated"); |
150 | calcscreengeom(); |
151 | calcmenu(rootmenu); |
152 | |
465d07db |
153 | /* grab mouse and keyboard */ |
27443900 |
154 | grabpointer(); |
155 | grabkeyboard(); |
465d07db |
156 | |
d8a7caf2 |
157 | /* map root menu */ |
27443900 |
158 | setcurrmenu(rootmenu); |
d8a7caf2 |
159 | XMapWindow(dpy, rootmenu->win); |
160 | |
a7732690 |
161 | /* run event loop */ |
162 | run(); |
163 | |
08f16589 |
164 | cleanup(); |
21a9aaec |
165 | return 0; |
166 | } |
167 | |
f644b8bc |
168 | /* read xrdb for configuration options */ |
169 | static void |
170 | getresources(void) |
171 | { |
172 | char *xrm; |
173 | long n; |
174 | |
175 | XrmInitialize(); |
176 | if ((xrm = XResourceManagerString(dpy))) { |
177 | char *type; |
178 | XrmDatabase xdb; |
179 | XrmValue xval; |
180 | |
181 | xdb = XrmGetStringDatabase(xrm); |
182 | |
183 | if (XrmGetResource(xdb, "xmenu.menuborder", "*", &type, &xval) == True) |
184 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
185 | menuborder = n; |
186 | if (XrmGetResource(xdb, "xmenu.separatorsize", "*", &type, &xval) == True) |
187 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
188 | separatorsize = n; |
189 | if (XrmGetResource(xdb, "xmenu.itemborder", "*", &type, &xval) == True) |
190 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
191 | itemborder = n; |
192 | if (XrmGetResource(xdb, "xmenu.width", "*", &type, &xval) == True) |
193 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
194 | width = n; |
195 | if (XrmGetResource(xdb, "xmenu.background", "*", &type, &xval) == True) |
196 | background = strdup(xval.addr); |
197 | if (XrmGetResource(xdb, "xmenu.foreground", "*", &type, &xval) == True) |
198 | foreground = strdup(xval.addr); |
199 | if (XrmGetResource(xdb, "xmenu.selbackground", "*", &type, &xval) == True) |
200 | selbackground = strdup(xval.addr); |
201 | if (XrmGetResource(xdb, "xmenu.selforeground", "*", &type, &xval) == True) |
202 | selforeground = strdup(xval.addr); |
203 | if (XrmGetResource(xdb, "xmenu.separator", "*", &type, &xval) == True) |
204 | separator = strdup(xval.addr); |
205 | if (XrmGetResource(xdb, "xmenu.border", "*", &type, &xval) == True) |
206 | border = strdup(xval.addr); |
207 | if (XrmGetResource(xdb, "xmenu.font", "*", &type, &xval) == True) |
208 | font = strdup(xval.addr); |
209 | |
210 | XrmDestroyDatabase(xdb); |
211 | } |
212 | } |
213 | |
a7732690 |
214 | /* get color from color string */ |
dbeb9940 |
215 | static void |
216 | getcolor(const char *s, XftColor *color) |
a7732690 |
217 | { |
dbeb9940 |
218 | if(!XftColorAllocName(dpy, visual, colormap, s, color)) |
a7732690 |
219 | errx(1, "cannot allocate color: %s", s); |
a7732690 |
220 | } |
221 | |
222 | /* init draw context */ |
223 | static void |
224 | setupdc(void) |
225 | { |
226 | /* get color pixels */ |
dbeb9940 |
227 | getcolor(background, &dc.normal[ColorBG]); |
228 | getcolor(foreground, &dc.normal[ColorFG]); |
229 | getcolor(selbackground, &dc.selected[ColorBG]); |
230 | getcolor(selforeground, &dc.selected[ColorFG]); |
231 | getcolor(separator, &dc.decoration[ColorBG]); |
232 | getcolor(border, &dc.decoration[ColorFG]); |
a7732690 |
233 | |
234 | /* try to get font */ |
dbeb9940 |
235 | if ((dc.font = XftFontOpenName(dpy, screen, font)) == NULL) |
a7732690 |
236 | errx(1, "cannot load font"); |
a7732690 |
237 | |
dbeb9940 |
238 | /* create GC */ |
a7732690 |
239 | dc.gc = XCreateGC(dpy, rootwin, 0, NULL); |
a7732690 |
240 | } |
241 | |
242 | /* init menu geometry values */ |
243 | static void |
244 | setupgeom(void) |
245 | { |
f644b8bc |
246 | geom.itemb = itemborder; |
dbeb9940 |
247 | geom.itemh = dc.font->height + itemborder * 2; |
f644b8bc |
248 | geom.itemw = width; |
249 | geom.border = menuborder; |
250 | geom.separator = separatorsize; |
a7732690 |
251 | } |
252 | |
a7732690 |
253 | /* allocate an item */ |
254 | static struct Item * |
a80fee22 |
255 | allocitem(const char *label, const char *output) |
a7732690 |
256 | { |
257 | struct Item *item; |
258 | |
259 | if ((item = malloc(sizeof *item)) == NULL) |
260 | err(1, "malloc"); |
7fbd1c5e |
261 | if (*label == '\0') { |
262 | item->label = NULL; |
263 | item->output = NULL; |
264 | } else { |
265 | if ((item->label = strdup(label)) == NULL) |
266 | err(1, "strdup"); |
267 | if ((item->output = strdup(output)) == NULL) |
268 | err(1, "strdup"); |
269 | } |
a80fee22 |
270 | item->y = 0; |
7fbd1c5e |
271 | item->h = item->label ? geom.itemh : geom.separator; |
f1583285 |
272 | if (item->label == NULL) |
273 | item->labellen = 0; |
274 | else |
275 | item->labellen = strlen(item->label); |
a7732690 |
276 | item->next = NULL; |
277 | item->submenu = NULL; |
278 | |
279 | return item; |
280 | } |
281 | |
282 | /* allocate a menu */ |
283 | static struct Menu * |
284 | allocmenu(struct Menu *parent, struct Item *list, unsigned level) |
285 | { |
286 | XSetWindowAttributes swa; |
287 | struct Menu *menu; |
288 | |
289 | if ((menu = malloc(sizeof *menu)) == NULL) |
290 | err(1, "malloc"); |
291 | menu->parent = parent; |
292 | menu->list = list; |
d888f2ca |
293 | menu->caller = NULL; |
a7732690 |
294 | menu->selected = NULL; |
a7732690 |
295 | menu->w = geom.itemw; |
a80fee22 |
296 | menu->h = 0; /* calculated by calcmenu() */ |
297 | menu->x = 0; /* calculated by calcmenu() */ |
298 | menu->y = 0; /* calculated by calcmenu() */ |
a7732690 |
299 | menu->level = level; |
a7732690 |
300 | |
27443900 |
301 | swa.override_redirect = True; |
dbeb9940 |
302 | swa.background_pixel = dc.decoration[ColorBG].pixel; |
303 | swa.border_pixel = dc.decoration[ColorFG].pixel; |
a7732690 |
304 | swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask |
f15fc339 |
305 | | PointerMotionMask | LeaveWindowMask; |
a7732690 |
306 | menu->win = XCreateWindow(dpy, rootwin, 0, 0, geom.itemw, geom.itemh, geom.border, |
307 | CopyFromParent, CopyFromParent, CopyFromParent, |
308 | CWOverrideRedirect | CWBackPixel | CWBorderPixel | CWEventMask, |
309 | &swa); |
310 | |
311 | return menu; |
312 | } |
313 | |
314 | /* create menus and items from the stdin */ |
315 | static void |
316 | parsestdin(void) |
317 | { |
318 | char *s, buf[BUFSIZ]; |
319 | char *label, *output; |
320 | unsigned level = 0; |
321 | unsigned i; |
a80fee22 |
322 | struct Item *curritem = NULL; /* item currently being read */ |
323 | struct Menu *prevmenu = NULL; /* menu the previous item was added to */ |
324 | struct Item *item; /* dummy item for for loops */ |
325 | struct Menu *menu; /* dummy menu for for loops */ |
a7732690 |
326 | size_t count = 0; /* number of items in the current menu */ |
327 | |
328 | while (fgets(buf, BUFSIZ, stdin) != NULL) { |
329 | level = 0; |
330 | s = buf; |
331 | |
332 | while (*s == '\t') { |
333 | level++; |
334 | s++; |
335 | } |
336 | |
337 | label = output = s; |
338 | |
339 | while (*s != '\0' && *s != '\t' && *s != '\n') |
340 | s++; |
341 | |
342 | while (*s == '\t') |
343 | *s++ = '\0'; |
344 | |
345 | if (*s != '\0' && *s != '\n') |
346 | output = s; |
347 | |
348 | while (*s != '\0' && *s != '\n') |
349 | s++; |
350 | |
351 | if (*s == '\n') |
352 | *s = '\0'; |
353 | |
a80fee22 |
354 | curritem = allocitem(label, output); |
a7732690 |
355 | |
356 | if (prevmenu == NULL) { /* there is no menu yet */ |
a80fee22 |
357 | menu = allocmenu(NULL, curritem, level); |
a7732690 |
358 | rootmenu = menu; |
359 | prevmenu = menu; |
360 | count = 1; |
858338d9 |
361 | curritem->prev = NULL; |
362 | curritem->next = NULL; |
a7732690 |
363 | } else if (level < prevmenu->level) { /* item is continuation of a parent menu*/ |
364 | for (menu = prevmenu, i = level; |
365 | menu != NULL && i < prevmenu->level; |
366 | menu = menu->parent, i++) |
367 | ; |
368 | |
369 | if (menu == NULL) |
370 | errx(1, "reached NULL menu"); |
371 | |
a80fee22 |
372 | for (item = menu->list; item->next != NULL; item = item->next) |
a7732690 |
373 | ; |
374 | |
a80fee22 |
375 | item->next = curritem; |
858338d9 |
376 | |
377 | curritem->prev = item; |
378 | curritem->next = NULL; |
379 | |
a7732690 |
380 | prevmenu = menu; |
381 | } else if (level == prevmenu->level) { /* item is a continuation of current menu */ |
a80fee22 |
382 | for (item = prevmenu->list; item->next != NULL; item = item->next) |
a7732690 |
383 | ; |
a80fee22 |
384 | item->next = curritem; |
858338d9 |
385 | |
386 | curritem->prev = item; |
387 | curritem->next = NULL; |
388 | |
a7732690 |
389 | } else if (level > prevmenu->level) { /* item begins a new menu */ |
a80fee22 |
390 | menu = allocmenu(prevmenu, curritem, level); |
a7732690 |
391 | |
a80fee22 |
392 | for (item = prevmenu->list; item->next != NULL; item = item->next) |
a7732690 |
393 | ; |
394 | |
a80fee22 |
395 | item->submenu = menu; |
d888f2ca |
396 | menu->caller = item; |
a7732690 |
397 | |
858338d9 |
398 | curritem->prev = NULL; |
399 | curritem->next = NULL; |
400 | |
a7732690 |
401 | prevmenu = menu; |
402 | } |
a80fee22 |
403 | count++; |
a7732690 |
404 | } |
405 | } |
406 | |
407 | /* calculate screen geometry */ |
408 | static void |
409 | calcscreengeom(void) |
410 | { |
411 | Window w1, w2; /* unused variables */ |
412 | int a, b; /* unused variables */ |
413 | unsigned mask; /* unused variable */ |
414 | |
a80fee22 |
415 | XQueryPointer(dpy, rootwin, &w1, &w2, &screengeom.cursx, &screengeom.cursy, &a, &b, &mask); |
416 | screengeom.screenw = DisplayWidth(dpy, screen); |
417 | screengeom.screenh = DisplayHeight(dpy, screen); |
a7732690 |
418 | } |
419 | |
21a9aaec |
420 | /* recursivelly calculate menu geometry and set window hints */ |
a7732690 |
421 | static void |
422 | calcmenu(struct Menu *menu) |
423 | { |
d2435fcd |
424 | static XClassHint classh = {PROGNAME, PROGNAME}; |
a7732690 |
425 | XWindowChanges changes; |
d2435fcd |
426 | XTextProperty textprop; |
09c13122 |
427 | XSizeHints sizeh; |
dbeb9940 |
428 | XGlyphInfo ext; |
a80fee22 |
429 | struct Item *item; |
f1583285 |
430 | int labelwidth; |
a7732690 |
431 | |
f1583285 |
432 | /* calculate items positions and menu width and height */ |
433 | menu->w = geom.itemw; |
a80fee22 |
434 | for (item = menu->list; item != NULL; item = item->next) { |
435 | item->y = menu->h; |
7fbd1c5e |
436 | if (item->label == NULL) /* height for separator item */ |
a80fee22 |
437 | menu->h += geom.separator; |
438 | else |
439 | menu->h += geom.itemh; |
f1583285 |
440 | |
dbeb9940 |
441 | XftTextExtentsUtf8(dpy, dc.font, (XftChar8 *)item->label, |
442 | item->labellen, &ext); |
443 | labelwidth = ext.xOff + dc.font->height * 2; |
f1583285 |
444 | menu->w = MAX(menu->w, labelwidth); |
a80fee22 |
445 | } |
a7732690 |
446 | |
447 | /* calculate menu's x and y positions */ |
448 | if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */ |
a80fee22 |
449 | if (screengeom.screenw - screengeom.cursx >= menu->w) |
450 | menu->x = screengeom.cursx; |
451 | else if (screengeom.cursx > menu->w) |
452 | menu->x = screengeom.cursx - menu->w; |
453 | |
454 | if (screengeom.screenh - screengeom.cursy >= menu->h) |
455 | menu->y = screengeom.cursy; |
456 | else if (screengeom.screenh > menu->h) |
457 | menu->y = screengeom.screenh - menu->h; |
d2435fcd |
458 | |
459 | XStringListToTextProperty(menutitle, menutitlecount, &textprop); |
a7732690 |
460 | } else { /* else, calculate in respect to parent menu */ |
f644b8bc |
461 | if (screengeom.screenw - (menu->parent->x + menu->parent->w + geom.border) >= menu->w) |
462 | menu->x = menu->parent->x + menu->parent->w + geom.border; |
463 | else if (menu->parent->x > menu->w + geom.border) |
464 | menu->x = menu->parent->x - menu->w - geom.border; |
a7732690 |
465 | |
8455c369 |
466 | if (screengeom.screenh - (menu->caller->y + menu->parent->y) > menu->h) |
467 | menu->y = menu->caller->y + menu->parent->y; |
a80fee22 |
468 | else if (screengeom.screenh - menu->parent->y > menu->h) |
a7732690 |
469 | menu->y = menu->parent->y; |
a80fee22 |
470 | else if (screengeom.screenh > menu->h) |
471 | menu->y = screengeom.screenh - menu->h; |
d2435fcd |
472 | |
473 | XStringListToTextProperty(&(menu->caller->output), 1, &textprop); |
a7732690 |
474 | } |
475 | |
476 | /* update menu geometry */ |
477 | changes.height = menu->h; |
f1583285 |
478 | changes.width = menu->w; |
a7732690 |
479 | changes.x = menu->x; |
480 | changes.y = menu->y; |
f1583285 |
481 | XConfigureWindow(dpy, menu->win, CWWidth | CWHeight | CWX | CWY, &changes); |
a7732690 |
482 | |
d2435fcd |
483 | /* set window manager hints */ |
09c13122 |
484 | sizeh.flags = PMaxSize | PMinSize; |
485 | sizeh.min_width = sizeh.max_width = menu->w; |
486 | sizeh.min_height = sizeh.max_height = menu->h; |
d2435fcd |
487 | XSetWMProperties(dpy, menu->win, &textprop, NULL, NULL, 0, &sizeh, |
488 | NULL, &classh); |
09c13122 |
489 | |
dbeb9940 |
490 | /* create pixmap and XftDraw */ |
f15fc339 |
491 | menu->pixmap = XCreatePixmap(dpy, menu->win, menu->w, menu->h, |
492 | DefaultDepth(dpy, screen)); |
dbeb9940 |
493 | menu->draw = XftDrawCreate(dpy, menu->pixmap, visual, colormap); |
f15fc339 |
494 | |
a80fee22 |
495 | /* calculate positions of submenus */ |
a7732690 |
496 | for (item = menu->list; item != NULL; item = item->next) { |
497 | if (item->submenu != NULL) |
498 | calcmenu(item->submenu); |
499 | } |
500 | } |
501 | |
85003546 |
502 | /* try to grab pointer, we may have to wait for another process to ungrab */ |
503 | static void |
504 | grabpointer(void) |
505 | { |
506 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; |
507 | int i; |
508 | |
509 | for (i = 0; i < 1000; i++) { |
510 | if (XGrabPointer(dpy, rootwin, True, ButtonPressMask, |
511 | GrabModeAsync, GrabModeAsync, None, |
512 | None, CurrentTime) == GrabSuccess) |
513 | return; |
514 | nanosleep(&ts, NULL); |
515 | } |
516 | errx(1, "cannot grab keyboard"); |
517 | } |
518 | |
519 | /* try to grab keyboard, we may have to wait for another process to ungrab */ |
520 | static void |
521 | grabkeyboard(void) |
522 | { |
523 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; |
524 | int i; |
525 | |
526 | for (i = 0; i < 1000; i++) { |
527 | if (XGrabKeyboard(dpy, rootwin, True, GrabModeAsync, |
528 | GrabModeAsync, CurrentTime) == GrabSuccess) |
529 | return; |
530 | nanosleep(&ts, NULL); |
531 | } |
532 | errx(1, "cannot grab keyboard"); |
533 | } |
534 | |
a7732690 |
535 | /* get menu and item of given window and position */ |
536 | static void |
a80fee22 |
537 | getmenuitem(Window win, int y, |
a7732690 |
538 | struct Menu **menu_ret, struct Item **item_ret) |
539 | { |
540 | struct Menu *menu = NULL; |
541 | struct Item *item = NULL; |
542 | |
543 | for (menu = currmenu; menu != NULL; menu = menu->parent) { |
544 | if (menu->win == win) { |
545 | for (item = menu->list; item != NULL; item = item->next) { |
7fbd1c5e |
546 | if (y >= item->y && y <= item->y + item->h) { |
a7732690 |
547 | goto done; |
548 | } |
549 | } |
550 | } |
551 | } |
552 | |
553 | |
554 | done: |
555 | *menu_ret = menu; |
556 | *item_ret = item; |
557 | } |
558 | |
559 | /* set currentmenu to menu, umap previous menus and map current menu and its parents */ |
560 | static void |
561 | setcurrmenu(struct Menu *currmenu_new) |
562 | { |
d8a7caf2 |
563 | struct Menu *menu, *menu_; |
d888f2ca |
564 | struct Item *item; |
d8a7caf2 |
565 | struct Menu *lcamenu; /* lowest common ancestor menu */ |
566 | unsigned minlevel; /* level of the closest to root menu */ |
567 | unsigned maxlevel; /* level of the closest to root menu */ |
a7732690 |
568 | |
27443900 |
569 | /* do not update currmenu to itself */ |
a7732690 |
570 | if (currmenu_new == currmenu) |
571 | return; |
572 | |
27443900 |
573 | /* if there was no currmenu, skip calculations */ |
574 | if (currmenu == NULL) { |
575 | currmenu = currmenu_new; |
576 | return; |
577 | } |
578 | |
d8a7caf2 |
579 | /* find lowest common ancestor menu */ |
580 | lcamenu = rootmenu; |
27443900 |
581 | minlevel = MIN(currmenu_new->level, currmenu->level); |
582 | maxlevel = MAX(currmenu_new->level, currmenu->level); |
583 | if (currmenu_new->level == maxlevel) { |
584 | menu = currmenu_new; |
585 | menu_ = currmenu; |
586 | } else { |
587 | menu = currmenu; |
588 | menu_ = currmenu_new; |
589 | } |
590 | while (menu->level > minlevel) |
591 | menu = menu->parent; |
592 | while (menu != menu_) { |
593 | menu = menu->parent; |
594 | menu_ = menu_->parent; |
d8a7caf2 |
595 | } |
27443900 |
596 | lcamenu = menu; |
d8a7caf2 |
597 | |
873c080c |
598 | /* unmap menus from currmenu (inclusive) until lcamenu (exclusive) */ |
d8a7caf2 |
599 | for (menu = currmenu; menu != lcamenu; menu = menu->parent) { |
8455c369 |
600 | menu->selected = NULL; |
a7732690 |
601 | XUnmapWindow(dpy, menu->win); |
602 | } |
603 | |
604 | currmenu = currmenu_new; |
605 | |
873c080c |
606 | /* map menus from currmenu (inclusive) until lcamenu (exclusive) */ |
d888f2ca |
607 | item = NULL; |
d8a7caf2 |
608 | for (menu = currmenu; menu != lcamenu; menu = menu->parent) { |
a7732690 |
609 | XMapWindow(dpy, menu->win); |
d888f2ca |
610 | if (item != NULL) |
611 | menu->selected = item; |
612 | item = menu->caller; |
613 | } |
a7732690 |
614 | } |
615 | |
616 | /* draw items of the current menu and of its ancestors */ |
617 | static void |
618 | drawmenu(void) |
619 | { |
620 | struct Menu *menu; |
621 | struct Item *item; |
622 | |
623 | for (menu = currmenu; menu != NULL; menu = menu->parent) { |
a7732690 |
624 | for (item = menu->list; item != NULL; item = item->next) { |
dbeb9940 |
625 | XftColor *color; |
a7732690 |
626 | int labelx, labely; |
a7732690 |
627 | |
628 | /* determine item color */ |
f644b8bc |
629 | if (item == menu->selected) |
630 | color = dc.selected; |
a7732690 |
631 | else |
f644b8bc |
632 | color = dc.normal; |
633 | |
634 | /* continue if item is a separator */ |
635 | if (item->label == NULL) |
636 | continue; |
a7732690 |
637 | |
a7732690 |
638 | /* draw item box */ |
dbeb9940 |
639 | XSetForeground(dpy, dc.gc, color[ColorBG].pixel); |
d888f2ca |
640 | XDrawRectangle(dpy, menu->pixmap, dc.gc, 0, item->y, |
641 | menu->w, item->h); |
f15fc339 |
642 | XFillRectangle(dpy, menu->pixmap, dc.gc, 0, item->y, |
f1583285 |
643 | menu->w, item->h); |
7fbd1c5e |
644 | |
a7732690 |
645 | /* draw item label */ |
dbeb9940 |
646 | labelx = 0 + dc.font->height; |
647 | labely = item->y + dc.font->height + geom.itemb / 2; |
648 | XSetForeground(dpy, dc.gc, color[ColorFG].pixel); |
649 | XftDrawStringUtf8(menu->draw, &color[ColorFG], dc.font, |
650 | labelx, labely, item->label, |
651 | item->labellen); |
a7732690 |
652 | |
653 | /* draw triangle, if item contains a submenu */ |
654 | if (item->submenu != NULL) { |
dbeb9940 |
655 | int trianglex = menu->w - dc.font->height + geom.itemb - 1; |
2b6968f9 |
656 | int triangley = item->y + (3 * item->h)/8 -1; |
a7732690 |
657 | |
658 | XPoint triangle[] = { |
659 | {trianglex, triangley}, |
2b6968f9 |
660 | {trianglex + item->h/8 + 1, item->y + item->h/2}, |
661 | {trianglex, triangley + item->h/4 + 2}, |
a7732690 |
662 | {trianglex, triangley} |
663 | }; |
664 | |
f15fc339 |
665 | XFillPolygon(dpy, menu->pixmap, dc.gc, triangle, LEN(triangle), |
a7732690 |
666 | Convex, CoordModeOrigin); |
667 | } |
f15fc339 |
668 | |
669 | XCopyArea(dpy, menu->pixmap, menu->win, dc.gc, 0, item->y, |
670 | menu->w, item->h, 0, item->y); |
a7732690 |
671 | } |
672 | } |
673 | } |
674 | |
858338d9 |
675 | /* cycle through the items; non-zero direction is next, zero is prev */ |
676 | static struct Item * |
677 | itemcycle(int direction) |
678 | { |
679 | struct Item *item; |
680 | struct Item *lastitem; |
681 | |
682 | item = NULL; |
683 | |
684 | if (direction == ITEMNEXT) { |
685 | if (currmenu->selected == NULL) |
686 | item = currmenu->list; |
687 | else if (currmenu->selected->next != NULL) |
688 | item = currmenu->selected->next; |
689 | |
690 | while (item != NULL && item->label == NULL) |
691 | item = item->next; |
692 | |
693 | if (item == NULL) |
694 | item = currmenu->list; |
695 | } else { |
696 | for (lastitem = currmenu->list; |
697 | lastitem != NULL && lastitem->next != NULL; |
698 | lastitem = lastitem->next) |
699 | ; |
700 | |
701 | if (currmenu->selected == NULL) |
702 | item = lastitem; |
703 | else if (currmenu->selected->prev != NULL) |
704 | item = currmenu->selected->prev; |
705 | |
706 | while (item != NULL && item->label == NULL) |
707 | item = item->prev; |
708 | |
709 | if (item == NULL) |
710 | item = lastitem; |
711 | } |
712 | |
713 | return item; |
714 | } |
715 | |
a7732690 |
716 | /* run event loop */ |
717 | static void |
718 | run(void) |
719 | { |
720 | struct Menu *menu; |
721 | struct Item *item; |
722 | struct Item *previtem = NULL; |
858338d9 |
723 | KeySym ksym; |
a7732690 |
724 | XEvent ev; |
725 | |
a7732690 |
726 | while (!XNextEvent(dpy, &ev)) { |
727 | switch(ev.type) { |
728 | case Expose: |
858338d9 |
729 | if (ev.xexpose.count == 0) |
730 | drawmenu(); |
a7732690 |
731 | break; |
732 | case MotionNotify: |
a80fee22 |
733 | getmenuitem(ev.xbutton.window, ev.xbutton.y, &menu, &item); |
a7732690 |
734 | if (menu != NULL && item != NULL) { |
735 | if (previtem != item) { |
736 | if (item->submenu != NULL) |
737 | setcurrmenu(item->submenu); |
738 | else |
739 | setcurrmenu(menu); |
740 | previtem = item; |
d888f2ca |
741 | drawmenu(); |
742 | } else if (menu->selected != item) { |
a7732690 |
743 | menu->selected = item; |
d888f2ca |
744 | drawmenu(); |
745 | } |
a7732690 |
746 | } |
a7732690 |
747 | break; |
748 | case ButtonRelease: |
a80fee22 |
749 | getmenuitem(ev.xbutton.window, ev.xbutton.y, &menu, &item); |
a7732690 |
750 | if (menu != NULL && item != NULL) { |
858338d9 |
751 | selectitem: |
7fbd1c5e |
752 | if (item->label == NULL) |
753 | break; /* ignore separators */ |
a7732690 |
754 | if (item->submenu != NULL) { |
755 | setcurrmenu(item->submenu); |
756 | } else { |
757 | printf("%s\n", item->output); |
08f16589 |
758 | return; |
a7732690 |
759 | } |
858338d9 |
760 | currmenu->selected = currmenu->list; |
a7732690 |
761 | drawmenu(); |
858338d9 |
762 | break; |
a7732690 |
763 | } else { |
08f16589 |
764 | return; |
a7732690 |
765 | } |
858338d9 |
766 | case ButtonPress: |
767 | getmenuitem(ev.xbutton.window, ev.xbutton.y, &menu, &item); |
768 | if (menu == NULL || item == NULL) |
769 | return; |
770 | break; |
771 | case KeyPress: |
772 | ksym = XkbKeycodeToKeysym(dpy, ev.xkey.keycode, 0, 0); |
773 | |
774 | if (ksym == XK_Escape && currmenu == rootmenu) |
775 | return; |
776 | |
777 | /* Shift-Tab = ISO_Left_Tab */ |
778 | if (ksym == XK_Tab && (ev.xkey.state & ShiftMask)) |
779 | ksym = XK_ISO_Left_Tab; |
780 | |
781 | /* cycle through menu */ |
782 | item = NULL; |
783 | if (ksym == XK_ISO_Left_Tab || ksym == XK_Up) { |
784 | item = itemcycle(ITEMPREV); |
785 | } else if (ksym == XK_Tab || ksym == XK_Down) { |
786 | item = itemcycle(ITEMNEXT); |
787 | } else if ((ksym == XK_Return || ksym == XK_Right) && |
788 | currmenu->selected != NULL) { |
789 | item = currmenu->selected; |
790 | goto selectitem; |
791 | } else if ((ksym == XK_Escape || ksym == XK_Left) && |
792 | currmenu->parent != NULL) { |
793 | item = currmenu->parent->selected; |
794 | setcurrmenu(currmenu->parent); |
795 | } else |
796 | break; |
797 | currmenu->selected = item; |
798 | drawmenu(); |
a7732690 |
799 | break; |
f15fc339 |
800 | case LeaveNotify: |
801 | currmenu->selected = NULL; |
802 | drawmenu(); |
803 | break; |
a7732690 |
804 | } |
805 | } |
806 | } |
807 | |
f15fc339 |
808 | /* recursivelly free a pixmap */ |
809 | static void |
810 | freewindow(struct Menu *menu) |
811 | { |
812 | struct Item *item; |
813 | |
814 | for (item = menu->list; item != NULL; item = item->next) |
815 | if (item->submenu != NULL) |
816 | freewindow(item->submenu); |
817 | |
818 | XFreePixmap(dpy, menu->pixmap); |
dbeb9940 |
819 | XftDrawDestroy(menu->draw); |
f15fc339 |
820 | XDestroyWindow(dpy, menu->win); |
821 | } |
822 | |
a7732690 |
823 | /* cleanup and exit */ |
824 | static void |
08f16589 |
825 | cleanup(void) |
a7732690 |
826 | { |
f15fc339 |
827 | freewindow(rootmenu); |
dbeb9940 |
828 | |
829 | XftColorFree(dpy, visual, colormap, &dc.normal[ColorBG]); |
830 | XftColorFree(dpy, visual, colormap, &dc.normal[ColorFG]); |
831 | XftColorFree(dpy, visual, colormap, &dc.selected[ColorBG]); |
832 | XftColorFree(dpy, visual, colormap, &dc.selected[ColorFG]); |
833 | XftColorFree(dpy, visual, colormap, &dc.decoration[ColorBG]); |
834 | XftColorFree(dpy, visual, colormap, &dc.decoration[ColorFG]); |
835 | |
f15fc339 |
836 | XFreeGC(dpy, dc.gc); |
a7732690 |
837 | XCloseDisplay(dpy); |
a7732690 |
838 | } |
839 | |
840 | /* show usage */ |
841 | static void |
842 | usage(void) |
843 | { |
27443900 |
844 | (void)fprintf(stderr, "usage: xmenu title...\n"); |
a7732690 |
845 | exit(1); |
846 | } |