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]; |
fd530f3f |
28 | XftColor border; |
29 | XftColor separator; |
a7732690 |
30 | |
31 | Drawable d; |
32 | GC gc; |
dbeb9940 |
33 | XftFont *font; |
a7732690 |
34 | }; |
35 | |
36 | /* menu geometry structure */ |
257e42cc |
37 | struct Geometry { |
38 | int border; /* window border width */ |
39 | int separator; /* menu separator width */ |
40 | int itemw, itemh; /* item width and height */ |
a7732690 |
41 | int cursx, cursy; /* cursor position */ |
42 | int screenw, screenh; /* screen width and height */ |
43 | }; |
44 | |
45 | /* menu item structure */ |
46 | struct Item { |
d8a7caf2 |
47 | char *label; /* string to be drawed on menu */ |
48 | char *output; /* string to be outputed when item is clicked */ |
49 | int y; /* item y position relative to menu */ |
50 | int h; /* item height */ |
51 | size_t labellen; /* strlen(label) */ |
858338d9 |
52 | struct Item *prev; /* previous item */ |
d8a7caf2 |
53 | struct Item *next; /* next item */ |
54 | struct Menu *submenu; /* submenu spawned by clicking on item */ |
a7732690 |
55 | }; |
56 | |
57 | /* menu structure */ |
58 | struct Menu { |
d8a7caf2 |
59 | struct Menu *parent; /* parent menu */ |
60 | struct Item *caller; /* item that spawned the menu */ |
61 | struct Item *list; /* list of items contained by the menu */ |
62 | struct Item *selected; /* item currently selected in the menu */ |
63 | int x, y, w, h; /* menu geometry */ |
64 | unsigned level; /* menu level relative to root */ |
65 | Drawable pixmap; /* pixmap to draw the menu on */ |
dbeb9940 |
66 | XftDraw *draw; |
d8a7caf2 |
67 | Window win; /* menu window to map on the screen */ |
a7732690 |
68 | }; |
69 | |
257e42cc |
70 | /* functions declarations */ |
f644b8bc |
71 | static void getresources(void); |
257e42cc |
72 | static void getcolor(const char *s, XftColor *color); |
a7732690 |
73 | static void setupdc(void); |
257e42cc |
74 | static void calcgeom(void); |
a80fee22 |
75 | static struct Item *allocitem(const char *label, const char *output); |
a7732690 |
76 | static struct Menu *allocmenu(struct Menu *parent, struct Item *list, unsigned level); |
257e42cc |
77 | static struct Menu *parsestdin(void); |
a7732690 |
78 | static void calcmenu(struct Menu *menu); |
85003546 |
79 | static void grabpointer(void); |
80 | static void grabkeyboard(void); |
257e42cc |
81 | static struct Menu *getmenu(struct Menu *currmenu, Window win); |
82 | static struct Item *getitem(struct Menu *menu, int y); |
83 | static void mapmenu(struct Menu *currmenu); |
84 | static void drawseparator(struct Menu *menu, struct Item *item); |
85 | static void drawitem(struct Menu *menu, struct Item *item, XftColor *color); |
86 | static void drawmenu(struct Menu *currmenu); |
87 | static struct Item *itemcycle(struct Menu *currmenu, int direction); |
88 | static void run(struct Menu *currmenu); |
ec4ed1ac |
89 | static void freemenu(struct Menu *menu); |
257e42cc |
90 | static void cleanup(struct Menu *rootmenu); |
a7732690 |
91 | static void usage(void); |
92 | |
257e42cc |
93 | /* global variables (X stuff and geometries) */ |
a7732690 |
94 | static Display *dpy; |
c6d9174e |
95 | static int screen; |
dbeb9940 |
96 | static Visual *visual; |
a7732690 |
97 | static Window rootwin; |
c6d9174e |
98 | static Colormap colormap; |
a7732690 |
99 | static struct DC dc; |
257e42cc |
100 | static struct Geometry geom; |
a7732690 |
101 | |
a7732690 |
102 | #include "config.h" |
103 | |
104 | int |
105 | main(int argc, char *argv[]) |
106 | { |
257e42cc |
107 | struct Menu *rootmenu; |
a7732690 |
108 | int ch; |
109 | |
27443900 |
110 | while ((ch = getopt(argc, argv, "")) != -1) { |
a7732690 |
111 | switch (ch) { |
a7732690 |
112 | default: |
113 | usage(); |
114 | break; |
115 | } |
116 | } |
117 | argc -= optind; |
118 | argv += optind; |
119 | |
c6d9174e |
120 | if (argc != 0) |
121 | usage(); |
122 | |
a7732690 |
123 | /* open connection to server and set X variables */ |
124 | if ((dpy = XOpenDisplay(NULL)) == NULL) |
125 | errx(1, "cannot open display"); |
126 | screen = DefaultScreen(dpy); |
dbeb9940 |
127 | visual = DefaultVisual(dpy, screen); |
a7732690 |
128 | rootwin = RootWindow(dpy, screen); |
129 | colormap = DefaultColormap(dpy, screen); |
21a9aaec |
130 | |
a7732690 |
131 | /* setup */ |
f644b8bc |
132 | getresources(); |
a7732690 |
133 | setupdc(); |
257e42cc |
134 | calcgeom(); |
a7732690 |
135 | |
136 | /* generate menus and recalculate them */ |
257e42cc |
137 | rootmenu = parsestdin(); |
a7732690 |
138 | if (rootmenu == NULL) |
139 | errx(1, "no menu generated"); |
a7732690 |
140 | calcmenu(rootmenu); |
141 | |
465d07db |
142 | /* grab mouse and keyboard */ |
27443900 |
143 | grabpointer(); |
144 | grabkeyboard(); |
465d07db |
145 | |
a7732690 |
146 | /* run event loop */ |
257e42cc |
147 | run(rootmenu); |
a7732690 |
148 | |
257e42cc |
149 | cleanup(rootmenu); |
21a9aaec |
150 | return 0; |
151 | } |
152 | |
f644b8bc |
153 | /* read xrdb for configuration options */ |
154 | static void |
155 | getresources(void) |
156 | { |
157 | char *xrm; |
158 | long n; |
fd530f3f |
159 | char *type; |
160 | XrmDatabase xdb; |
161 | XrmValue xval; |
f644b8bc |
162 | |
163 | XrmInitialize(); |
fd530f3f |
164 | if ((xrm = XResourceManagerString(dpy)) == NULL) |
165 | return; |
166 | |
167 | xdb = XrmGetStringDatabase(xrm); |
168 | |
169 | if (XrmGetResource(xdb, "xmenu.borderWidth", "*", &type, &xval) == True) |
170 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
171 | border_pixels = n; |
172 | if (XrmGetResource(xdb, "xmenu.separatorWidth", "*", &type, &xval) == True) |
173 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
174 | separator_pixels = n; |
175 | if (XrmGetResource(xdb, "xmenu.padding", "*", &type, &xval) == True) |
176 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
177 | padding_pixels = n; |
178 | if (XrmGetResource(xdb, "xmenu.width", "*", &type, &xval) == True) |
179 | if ((n = strtol(xval.addr, NULL, 10)) > 0) |
180 | width_pixels = n; |
181 | if (XrmGetResource(xdb, "xmenu.background", "*", &type, &xval) == True) |
182 | background_color = strdup(xval.addr); |
183 | if (XrmGetResource(xdb, "xmenu.foreground", "*", &type, &xval) == True) |
184 | foreground_color = strdup(xval.addr); |
185 | if (XrmGetResource(xdb, "xmenu.selbackground", "*", &type, &xval) == True) |
186 | selbackground_color = strdup(xval.addr); |
187 | if (XrmGetResource(xdb, "xmenu.selforeground", "*", &type, &xval) == True) |
188 | selforeground_color = strdup(xval.addr); |
189 | if (XrmGetResource(xdb, "xmenu.separator", "*", &type, &xval) == True) |
190 | separator_color = strdup(xval.addr); |
191 | if (XrmGetResource(xdb, "xmenu.border", "*", &type, &xval) == True) |
192 | border_color = strdup(xval.addr); |
193 | if (XrmGetResource(xdb, "xmenu.font", "*", &type, &xval) == True) |
194 | font = strdup(xval.addr); |
195 | |
196 | XrmDestroyDatabase(xdb); |
f644b8bc |
197 | } |
198 | |
a7732690 |
199 | /* get color from color string */ |
dbeb9940 |
200 | static void |
201 | getcolor(const char *s, XftColor *color) |
a7732690 |
202 | { |
dbeb9940 |
203 | if(!XftColorAllocName(dpy, visual, colormap, s, color)) |
a7732690 |
204 | errx(1, "cannot allocate color: %s", s); |
a7732690 |
205 | } |
206 | |
207 | /* init draw context */ |
208 | static void |
209 | setupdc(void) |
210 | { |
211 | /* get color pixels */ |
fd530f3f |
212 | getcolor(background_color, &dc.normal[ColorBG]); |
213 | getcolor(foreground_color, &dc.normal[ColorFG]); |
214 | getcolor(selbackground_color, &dc.selected[ColorBG]); |
215 | getcolor(selforeground_color, &dc.selected[ColorFG]); |
216 | getcolor(separator_color, &dc.separator); |
217 | getcolor(border_color, &dc.border); |
a7732690 |
218 | |
219 | /* try to get font */ |
dbeb9940 |
220 | if ((dc.font = XftFontOpenName(dpy, screen, font)) == NULL) |
a7732690 |
221 | errx(1, "cannot load font"); |
a7732690 |
222 | |
fd530f3f |
223 | /* create common GC */ |
a7732690 |
224 | dc.gc = XCreateGC(dpy, rootwin, 0, NULL); |
a7732690 |
225 | } |
226 | |
257e42cc |
227 | /* calculate menu and screen geometry */ |
a7732690 |
228 | static void |
257e42cc |
229 | calcgeom(void) |
a7732690 |
230 | { |
257e42cc |
231 | Window w1, w2; /* unused variables */ |
232 | int a, b; /* unused variables */ |
233 | unsigned mask; /* unused variable */ |
234 | |
235 | XQueryPointer(dpy, rootwin, &w1, &w2, &geom.cursx, &geom.cursy, &a, &b, &mask); |
236 | geom.screenw = DisplayWidth(dpy, screen); |
237 | geom.screenh = DisplayHeight(dpy, screen); |
fd530f3f |
238 | geom.itemh = dc.font->height + padding_pixels * 2; |
239 | geom.itemw = width_pixels; |
240 | geom.border = border_pixels; |
241 | geom.separator = separator_pixels; |
a7732690 |
242 | } |
243 | |
a7732690 |
244 | /* allocate an item */ |
245 | static struct Item * |
a80fee22 |
246 | allocitem(const char *label, const char *output) |
a7732690 |
247 | { |
248 | struct Item *item; |
249 | |
250 | if ((item = malloc(sizeof *item)) == NULL) |
251 | err(1, "malloc"); |
7fbd1c5e |
252 | if (*label == '\0') { |
253 | item->label = NULL; |
254 | item->output = NULL; |
255 | } else { |
256 | if ((item->label = strdup(label)) == NULL) |
257 | err(1, "strdup"); |
258 | if ((item->output = strdup(output)) == NULL) |
259 | err(1, "strdup"); |
260 | } |
a80fee22 |
261 | item->y = 0; |
7fbd1c5e |
262 | item->h = item->label ? geom.itemh : geom.separator; |
f1583285 |
263 | if (item->label == NULL) |
264 | item->labellen = 0; |
265 | else |
266 | item->labellen = strlen(item->label); |
a7732690 |
267 | item->next = NULL; |
268 | item->submenu = NULL; |
269 | |
270 | return item; |
271 | } |
272 | |
273 | /* allocate a menu */ |
274 | static struct Menu * |
275 | allocmenu(struct Menu *parent, struct Item *list, unsigned level) |
276 | { |
277 | XSetWindowAttributes swa; |
278 | struct Menu *menu; |
279 | |
280 | if ((menu = malloc(sizeof *menu)) == NULL) |
281 | err(1, "malloc"); |
282 | menu->parent = parent; |
283 | menu->list = list; |
d888f2ca |
284 | menu->caller = NULL; |
a7732690 |
285 | menu->selected = NULL; |
a7732690 |
286 | menu->w = geom.itemw; |
a80fee22 |
287 | menu->h = 0; /* calculated by calcmenu() */ |
288 | menu->x = 0; /* calculated by calcmenu() */ |
289 | menu->y = 0; /* calculated by calcmenu() */ |
a7732690 |
290 | menu->level = level; |
a7732690 |
291 | |
27443900 |
292 | swa.override_redirect = True; |
fd530f3f |
293 | swa.background_pixel = dc.normal[ColorBG].pixel; |
294 | swa.border_pixel = dc.border.pixel; |
295 | swa.save_under = True; /* pop-up windows should save_under*/ |
a7732690 |
296 | swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask |
f15fc339 |
297 | | PointerMotionMask | LeaveWindowMask; |
a7732690 |
298 | menu->win = XCreateWindow(dpy, rootwin, 0, 0, geom.itemw, geom.itemh, geom.border, |
299 | CopyFromParent, CopyFromParent, CopyFromParent, |
fd530f3f |
300 | CWOverrideRedirect | CWBackPixel | |
301 | CWBorderPixel | CWEventMask | CWSaveUnder, |
a7732690 |
302 | &swa); |
303 | |
304 | return menu; |
305 | } |
306 | |
307 | /* create menus and items from the stdin */ |
257e42cc |
308 | static struct Menu * |
a7732690 |
309 | parsestdin(void) |
310 | { |
311 | char *s, buf[BUFSIZ]; |
312 | char *label, *output; |
313 | unsigned level = 0; |
314 | unsigned i; |
a80fee22 |
315 | struct Item *curritem = NULL; /* item currently being read */ |
316 | struct Menu *prevmenu = NULL; /* menu the previous item was added to */ |
c6d9174e |
317 | struct Item *item; /* dummy item for loops */ |
318 | struct Menu *menu; /* dummy menu for loops */ |
319 | struct Menu *rootmenu; /* menu to be returned */ |
a7732690 |
320 | |
257e42cc |
321 | rootmenu = NULL; |
322 | |
a7732690 |
323 | while (fgets(buf, BUFSIZ, stdin) != NULL) { |
324 | level = 0; |
325 | s = buf; |
326 | |
327 | while (*s == '\t') { |
328 | level++; |
329 | s++; |
330 | } |
331 | |
332 | label = output = s; |
333 | |
334 | while (*s != '\0' && *s != '\t' && *s != '\n') |
335 | s++; |
336 | |
337 | while (*s == '\t') |
338 | *s++ = '\0'; |
339 | |
340 | if (*s != '\0' && *s != '\n') |
341 | output = s; |
342 | |
343 | while (*s != '\0' && *s != '\n') |
344 | s++; |
345 | |
346 | if (*s == '\n') |
347 | *s = '\0'; |
348 | |
a80fee22 |
349 | curritem = allocitem(label, output); |
a7732690 |
350 | |
351 | if (prevmenu == NULL) { /* there is no menu yet */ |
a80fee22 |
352 | menu = allocmenu(NULL, curritem, level); |
a7732690 |
353 | rootmenu = menu; |
354 | prevmenu = menu; |
858338d9 |
355 | curritem->prev = NULL; |
356 | curritem->next = NULL; |
a7732690 |
357 | } else if (level < prevmenu->level) { /* item is continuation of a parent menu*/ |
358 | for (menu = prevmenu, i = level; |
359 | menu != NULL && i < prevmenu->level; |
360 | menu = menu->parent, i++) |
361 | ; |
362 | |
363 | if (menu == NULL) |
364 | errx(1, "reached NULL menu"); |
365 | |
a80fee22 |
366 | for (item = menu->list; item->next != NULL; item = item->next) |
a7732690 |
367 | ; |
368 | |
a80fee22 |
369 | item->next = curritem; |
858338d9 |
370 | |
371 | curritem->prev = item; |
372 | curritem->next = NULL; |
373 | |
a7732690 |
374 | prevmenu = menu; |
375 | } else if (level == prevmenu->level) { /* item is a continuation of current menu */ |
a80fee22 |
376 | for (item = prevmenu->list; item->next != NULL; item = item->next) |
a7732690 |
377 | ; |
a80fee22 |
378 | item->next = curritem; |
858338d9 |
379 | |
380 | curritem->prev = item; |
381 | curritem->next = NULL; |
382 | |
a7732690 |
383 | } else if (level > prevmenu->level) { /* item begins a new menu */ |
a80fee22 |
384 | menu = allocmenu(prevmenu, curritem, level); |
a7732690 |
385 | |
a80fee22 |
386 | for (item = prevmenu->list; item->next != NULL; item = item->next) |
a7732690 |
387 | ; |
388 | |
a80fee22 |
389 | item->submenu = menu; |
d888f2ca |
390 | menu->caller = item; |
a7732690 |
391 | |
858338d9 |
392 | curritem->prev = NULL; |
393 | curritem->next = NULL; |
394 | |
a7732690 |
395 | prevmenu = menu; |
396 | } |
397 | } |
a7732690 |
398 | |
257e42cc |
399 | return rootmenu; |
a7732690 |
400 | } |
401 | |
21a9aaec |
402 | /* recursivelly calculate menu geometry and set window hints */ |
a7732690 |
403 | static void |
404 | calcmenu(struct Menu *menu) |
405 | { |
d2435fcd |
406 | static XClassHint classh = {PROGNAME, PROGNAME}; |
a7732690 |
407 | XWindowChanges changes; |
09c13122 |
408 | XSizeHints sizeh; |
dbeb9940 |
409 | XGlyphInfo ext; |
a80fee22 |
410 | struct Item *item; |
f1583285 |
411 | int labelwidth; |
ec4ed1ac |
412 | int width, height; |
a7732690 |
413 | |
f1583285 |
414 | /* calculate items positions and menu width and height */ |
415 | menu->w = geom.itemw; |
a80fee22 |
416 | for (item = menu->list; item != NULL; item = item->next) { |
417 | item->y = menu->h; |
7fbd1c5e |
418 | if (item->label == NULL) /* height for separator item */ |
a80fee22 |
419 | menu->h += geom.separator; |
420 | else |
421 | menu->h += geom.itemh; |
f1583285 |
422 | |
dbeb9940 |
423 | XftTextExtentsUtf8(dpy, dc.font, (XftChar8 *)item->label, |
424 | item->labellen, &ext); |
425 | labelwidth = ext.xOff + dc.font->height * 2; |
f1583285 |
426 | menu->w = MAX(menu->w, labelwidth); |
a80fee22 |
427 | } |
a7732690 |
428 | |
429 | /* calculate menu's x and y positions */ |
ec4ed1ac |
430 | width = menu->w + geom.border * 2; |
431 | height = menu->h + geom.border * 2; |
a7732690 |
432 | if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */ |
257e42cc |
433 | if (geom.screenw - geom.cursx >= menu->w) |
434 | menu->x = geom.cursx; |
ec4ed1ac |
435 | else if (geom.cursx > width) |
436 | menu->x = geom.cursx - width; |
257e42cc |
437 | |
ec4ed1ac |
438 | if (geom.screenh - geom.cursy >= height) |
257e42cc |
439 | menu->y = geom.cursy; |
ec4ed1ac |
440 | else if (geom.screenh > height) |
441 | menu->y = geom.screenh - height; |
a7732690 |
442 | } else { /* else, calculate in respect to parent menu */ |
ec4ed1ac |
443 | if (geom.screenw - (menu->parent->x + menu->parent->w + geom.border) >= width) |
f644b8bc |
444 | menu->x = menu->parent->x + menu->parent->w + geom.border; |
445 | else if (menu->parent->x > menu->w + geom.border) |
446 | menu->x = menu->parent->x - menu->w - geom.border; |
a7732690 |
447 | |
ec4ed1ac |
448 | if (geom.screenh - (menu->caller->y + menu->parent->y) > height) |
8455c369 |
449 | menu->y = menu->caller->y + menu->parent->y; |
ec4ed1ac |
450 | else if (geom.screenh - menu->parent->y > height) |
a7732690 |
451 | menu->y = menu->parent->y; |
ec4ed1ac |
452 | else if (geom.screenh > height) |
453 | menu->y = geom.screenh - height; |
a7732690 |
454 | } |
455 | |
456 | /* update menu geometry */ |
457 | changes.height = menu->h; |
f1583285 |
458 | changes.width = menu->w; |
a7732690 |
459 | changes.x = menu->x; |
460 | changes.y = menu->y; |
f1583285 |
461 | XConfigureWindow(dpy, menu->win, CWWidth | CWHeight | CWX | CWY, &changes); |
a7732690 |
462 | |
d2435fcd |
463 | /* set window manager hints */ |
09c13122 |
464 | sizeh.flags = PMaxSize | PMinSize; |
465 | sizeh.min_width = sizeh.max_width = menu->w; |
466 | sizeh.min_height = sizeh.max_height = menu->h; |
0c1a7864 |
467 | XSetWMProperties(dpy, menu->win, NULL, NULL, NULL, 0, &sizeh, |
d2435fcd |
468 | NULL, &classh); |
09c13122 |
469 | |
dbeb9940 |
470 | /* create pixmap and XftDraw */ |
f15fc339 |
471 | menu->pixmap = XCreatePixmap(dpy, menu->win, menu->w, menu->h, |
472 | DefaultDepth(dpy, screen)); |
dbeb9940 |
473 | menu->draw = XftDrawCreate(dpy, menu->pixmap, visual, colormap); |
f15fc339 |
474 | |
a80fee22 |
475 | /* calculate positions of submenus */ |
a7732690 |
476 | for (item = menu->list; item != NULL; item = item->next) { |
477 | if (item->submenu != NULL) |
478 | calcmenu(item->submenu); |
479 | } |
480 | } |
481 | |
85003546 |
482 | /* try to grab pointer, we may have to wait for another process to ungrab */ |
483 | static void |
484 | grabpointer(void) |
485 | { |
486 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; |
487 | int i; |
488 | |
489 | for (i = 0; i < 1000; i++) { |
490 | if (XGrabPointer(dpy, rootwin, True, ButtonPressMask, |
491 | GrabModeAsync, GrabModeAsync, None, |
492 | None, CurrentTime) == GrabSuccess) |
493 | return; |
494 | nanosleep(&ts, NULL); |
495 | } |
496 | errx(1, "cannot grab keyboard"); |
497 | } |
498 | |
499 | /* try to grab keyboard, we may have to wait for another process to ungrab */ |
500 | static void |
501 | grabkeyboard(void) |
502 | { |
503 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; |
504 | int i; |
505 | |
506 | for (i = 0; i < 1000; i++) { |
507 | if (XGrabKeyboard(dpy, rootwin, True, GrabModeAsync, |
508 | GrabModeAsync, CurrentTime) == GrabSuccess) |
509 | return; |
510 | nanosleep(&ts, NULL); |
511 | } |
512 | errx(1, "cannot grab keyboard"); |
513 | } |
514 | |
0c1a7864 |
515 | /* get menu of given window */ |
516 | static struct Menu * |
257e42cc |
517 | getmenu(struct Menu *currmenu, Window win) |
a7732690 |
518 | { |
0c1a7864 |
519 | struct Menu *menu; |
a7732690 |
520 | |
0c1a7864 |
521 | for (menu = currmenu; menu != NULL; menu = menu->parent) |
522 | if (menu->win == win) |
523 | return menu; |
a7732690 |
524 | |
0c1a7864 |
525 | return NULL; |
526 | } |
527 | |
528 | /* get item of given menu and position */ |
529 | static struct Item * |
530 | getitem(struct Menu *menu, int y) |
531 | { |
532 | struct Item *item; |
a7732690 |
533 | |
0c1a7864 |
534 | if (menu == NULL) |
535 | return NULL; |
536 | |
537 | for (item = menu->list; item != NULL; item = item->next) |
538 | if (y >= item->y && y <= item->y + item->h) |
539 | return item; |
540 | |
541 | return NULL; |
a7732690 |
542 | } |
543 | |
257e42cc |
544 | /* umap previous menus and map current menu and its parents */ |
a7732690 |
545 | static void |
257e42cc |
546 | mapmenu(struct Menu *currmenu) |
a7732690 |
547 | { |
257e42cc |
548 | static struct Menu *prevmenu = NULL; |
d8a7caf2 |
549 | struct Menu *menu, *menu_; |
d8a7caf2 |
550 | struct Menu *lcamenu; /* lowest common ancestor menu */ |
551 | unsigned minlevel; /* level of the closest to root menu */ |
552 | unsigned maxlevel; /* level of the closest to root menu */ |
a7732690 |
553 | |
257e42cc |
554 | /* do not remap current menu if it wasn't updated*/ |
555 | if (prevmenu == currmenu) |
a7732690 |
556 | return; |
557 | |
257e42cc |
558 | /* if this is the first time mapping, skip calculations */ |
559 | if (prevmenu == NULL) { |
fd530f3f |
560 | XMapWindow(dpy, currmenu->win); |
cdc4d51f |
561 | prevmenu = currmenu; |
562 | return; |
27443900 |
563 | } |
564 | |
d8a7caf2 |
565 | /* find lowest common ancestor menu */ |
257e42cc |
566 | minlevel = MIN(currmenu->level, prevmenu->level); |
567 | maxlevel = MAX(currmenu->level, prevmenu->level); |
568 | if (currmenu->level == maxlevel) { |
27443900 |
569 | menu = currmenu; |
257e42cc |
570 | menu_ = prevmenu; |
571 | } else { |
572 | menu = prevmenu; |
573 | menu_ = currmenu; |
27443900 |
574 | } |
575 | while (menu->level > minlevel) |
576 | menu = menu->parent; |
577 | while (menu != menu_) { |
578 | menu = menu->parent; |
579 | menu_ = menu_->parent; |
d8a7caf2 |
580 | } |
27443900 |
581 | lcamenu = menu; |
d8a7caf2 |
582 | |
873c080c |
583 | /* unmap menus from currmenu (inclusive) until lcamenu (exclusive) */ |
257e42cc |
584 | for (menu = prevmenu; menu != lcamenu; menu = menu->parent) { |
8455c369 |
585 | menu->selected = NULL; |
a7732690 |
586 | XUnmapWindow(dpy, menu->win); |
587 | } |
588 | |
873c080c |
589 | /* map menus from currmenu (inclusive) until lcamenu (exclusive) */ |
d8a7caf2 |
590 | for (menu = currmenu; menu != lcamenu; menu = menu->parent) { |
a7732690 |
591 | XMapWindow(dpy, menu->win); |
fd530f3f |
592 | } |
257e42cc |
593 | |
257e42cc |
594 | prevmenu = currmenu; |
fd530f3f |
595 | } |
596 | |
597 | /* draw separator item */ |
598 | static void |
599 | drawseparator(struct Menu *menu, struct Item *item) |
600 | { |
601 | int linex, liney, linew; |
602 | |
603 | linex = dc.font->height; |
604 | liney = item->y + item->h/2; |
605 | linew = menu->w - dc.font->height; |
606 | |
607 | XSetForeground(dpy, dc.gc, dc.separator.pixel); |
608 | XDrawLine(dpy, menu->pixmap, dc.gc, linex, liney, linew, liney); |
609 | } |
610 | |
611 | /* draw regular item */ |
612 | static void |
613 | drawitem(struct Menu *menu, struct Item *item, XftColor *color) |
614 | { |
615 | int x, y; |
616 | |
cdc4d51f |
617 | x = dc.font->height; |
257e42cc |
618 | y = item->y + item->h/2 + dc.font->ascent/2 - 1; |
fd530f3f |
619 | XSetForeground(dpy, dc.gc, color[ColorFG].pixel); |
620 | XftDrawStringUtf8(menu->draw, &color[ColorFG], dc.font, |
621 | x, y, item->label, item->labellen); |
622 | |
623 | /* draw triangle, if item contains a submenu */ |
624 | if (item->submenu != NULL) { |
257e42cc |
625 | x = menu->w - dc.font->height/2 - triangle_width/2; |
626 | y = item->y + item->h/2 - triangle_height/2 - 1; |
fd530f3f |
627 | |
628 | XPoint triangle[] = { |
629 | {x, y}, |
630 | {x + triangle_width, y + triangle_height/2}, |
631 | {x, y + triangle_height}, |
632 | {x, y} |
633 | }; |
634 | |
635 | XFillPolygon(dpy, menu->pixmap, dc.gc, triangle, LEN(triangle), |
636 | Convex, CoordModeOrigin); |
d888f2ca |
637 | } |
a7732690 |
638 | } |
639 | |
640 | /* draw items of the current menu and of its ancestors */ |
641 | static void |
257e42cc |
642 | drawmenu(struct Menu *currmenu) |
a7732690 |
643 | { |
644 | struct Menu *menu; |
645 | struct Item *item; |
646 | |
647 | for (menu = currmenu; menu != NULL; menu = menu->parent) { |
a7732690 |
648 | for (item = menu->list; item != NULL; item = item->next) { |
dbeb9940 |
649 | XftColor *color; |
a7732690 |
650 | |
651 | /* determine item color */ |
fd530f3f |
652 | if (item == menu->selected && item->label != NULL) |
f644b8bc |
653 | color = dc.selected; |
a7732690 |
654 | else |
f644b8bc |
655 | color = dc.normal; |
656 | |
a7732690 |
657 | /* draw item box */ |
dbeb9940 |
658 | XSetForeground(dpy, dc.gc, color[ColorBG].pixel); |
f15fc339 |
659 | XFillRectangle(dpy, menu->pixmap, dc.gc, 0, item->y, |
f1583285 |
660 | menu->w, item->h); |
7fbd1c5e |
661 | |
fd530f3f |
662 | if (item->label == NULL) /* item is a separator */ |
663 | drawseparator(menu, item); |
664 | else /* item is a regular item */ |
665 | drawitem(menu, item, color); |
a7732690 |
666 | } |
fd530f3f |
667 | |
668 | XCopyArea(dpy, menu->pixmap, menu->win, dc.gc, 0, 0, |
669 | menu->w, menu->h, 0, 0); |
a7732690 |
670 | } |
671 | } |
672 | |
858338d9 |
673 | /* cycle through the items; non-zero direction is next, zero is prev */ |
674 | static struct Item * |
257e42cc |
675 | itemcycle(struct Menu *currmenu, int direction) |
858338d9 |
676 | { |
677 | struct Item *item; |
678 | struct Item *lastitem; |
679 | |
680 | item = NULL; |
681 | |
682 | if (direction == ITEMNEXT) { |
683 | if (currmenu->selected == NULL) |
684 | item = currmenu->list; |
685 | else if (currmenu->selected->next != NULL) |
686 | item = currmenu->selected->next; |
687 | |
688 | while (item != NULL && item->label == NULL) |
689 | item = item->next; |
690 | |
691 | if (item == NULL) |
692 | item = currmenu->list; |
693 | } else { |
694 | for (lastitem = currmenu->list; |
695 | lastitem != NULL && lastitem->next != NULL; |
696 | lastitem = lastitem->next) |
697 | ; |
698 | |
699 | if (currmenu->selected == NULL) |
700 | item = lastitem; |
701 | else if (currmenu->selected->prev != NULL) |
702 | item = currmenu->selected->prev; |
703 | |
704 | while (item != NULL && item->label == NULL) |
705 | item = item->prev; |
706 | |
707 | if (item == NULL) |
708 | item = lastitem; |
709 | } |
710 | |
711 | return item; |
712 | } |
713 | |
a7732690 |
714 | /* run event loop */ |
715 | static void |
257e42cc |
716 | run(struct Menu *currmenu) |
a7732690 |
717 | { |
718 | struct Menu *menu; |
719 | struct Item *item; |
720 | struct Item *previtem = NULL; |
858338d9 |
721 | KeySym ksym; |
a7732690 |
722 | XEvent ev; |
723 | |
257e42cc |
724 | mapmenu(currmenu); |
fd530f3f |
725 | |
a7732690 |
726 | while (!XNextEvent(dpy, &ev)) { |
727 | switch(ev.type) { |
728 | case Expose: |
858338d9 |
729 | if (ev.xexpose.count == 0) |
257e42cc |
730 | drawmenu(currmenu); |
a7732690 |
731 | break; |
732 | case MotionNotify: |
257e42cc |
733 | menu = getmenu(currmenu, ev.xbutton.window); |
0c1a7864 |
734 | item = getitem(menu, ev.xbutton.y); |
c6d9174e |
735 | if (menu == NULL || item == NULL || previtem == item) |
fd530f3f |
736 | break; |
c6d9174e |
737 | previtem = item; |
738 | menu->selected = item; |
739 | if (item->submenu != NULL) { |
740 | currmenu = item->submenu; |
741 | currmenu->selected = NULL; |
742 | } else { |
743 | currmenu = menu; |
a7732690 |
744 | } |
c6d9174e |
745 | mapmenu(currmenu); |
746 | drawmenu(currmenu); |
a7732690 |
747 | break; |
748 | case ButtonRelease: |
257e42cc |
749 | menu = getmenu(currmenu, ev.xbutton.window); |
0c1a7864 |
750 | item = getitem(menu, ev.xbutton.y); |
fd530f3f |
751 | if (menu == NULL || item == NULL) |
858338d9 |
752 | break; |
fd530f3f |
753 | selectitem: |
754 | if (item->label == NULL) |
755 | break; /* ignore separators */ |
756 | if (item->submenu != NULL) { |
257e42cc |
757 | currmenu = item->submenu; |
a7732690 |
758 | } else { |
fd530f3f |
759 | printf("%s\n", item->output); |
08f16589 |
760 | return; |
a7732690 |
761 | } |
257e42cc |
762 | mapmenu(currmenu); |
fd530f3f |
763 | currmenu->selected = currmenu->list; |
257e42cc |
764 | drawmenu(currmenu); |
fd530f3f |
765 | break; |
858338d9 |
766 | case ButtonPress: |
257e42cc |
767 | menu = getmenu(currmenu, ev.xbutton.window); |
0c1a7864 |
768 | if (menu == NULL) |
858338d9 |
769 | return; |
770 | break; |
771 | case KeyPress: |
772 | ksym = XkbKeycodeToKeysym(dpy, ev.xkey.keycode, 0, 0); |
773 | |
0c1a7864 |
774 | /* esc closes xmenu when current menu is the root menu */ |
257e42cc |
775 | if (ksym == XK_Escape && currmenu->parent == NULL) |
858338d9 |
776 | return; |
777 | |
778 | /* Shift-Tab = ISO_Left_Tab */ |
779 | if (ksym == XK_Tab && (ev.xkey.state & ShiftMask)) |
780 | ksym = XK_ISO_Left_Tab; |
781 | |
782 | /* cycle through menu */ |
783 | item = NULL; |
784 | if (ksym == XK_ISO_Left_Tab || ksym == XK_Up) { |
257e42cc |
785 | item = itemcycle(currmenu, ITEMPREV); |
858338d9 |
786 | } else if (ksym == XK_Tab || ksym == XK_Down) { |
257e42cc |
787 | item = itemcycle(currmenu, ITEMNEXT); |
858338d9 |
788 | } else if ((ksym == XK_Return || ksym == XK_Right) && |
789 | currmenu->selected != NULL) { |
790 | item = currmenu->selected; |
791 | goto selectitem; |
792 | } else if ((ksym == XK_Escape || ksym == XK_Left) && |
793 | currmenu->parent != NULL) { |
794 | item = currmenu->parent->selected; |
257e42cc |
795 | currmenu = currmenu->parent; |
796 | mapmenu(currmenu); |
858338d9 |
797 | } else |
798 | break; |
799 | currmenu->selected = item; |
257e42cc |
800 | drawmenu(currmenu); |
a7732690 |
801 | break; |
f15fc339 |
802 | case LeaveNotify: |
fd530f3f |
803 | previtem = NULL; |
f15fc339 |
804 | currmenu->selected = NULL; |
257e42cc |
805 | drawmenu(currmenu); |
f15fc339 |
806 | break; |
a7732690 |
807 | } |
808 | } |
809 | } |
810 | |
fd530f3f |
811 | /* recursivelly free pixmaps and destroy windows */ |
f15fc339 |
812 | static void |
ec4ed1ac |
813 | freemenu(struct Menu *menu) |
f15fc339 |
814 | { |
815 | struct Item *item; |
ec4ed1ac |
816 | struct Item *tmp; |
f15fc339 |
817 | |
ec4ed1ac |
818 | item = menu->list; |
819 | while (item != NULL) { |
f15fc339 |
820 | if (item->submenu != NULL) |
ec4ed1ac |
821 | freemenu(item->submenu); |
822 | tmp = item; |
823 | item = item->next; |
824 | free(tmp); |
825 | } |
f15fc339 |
826 | |
827 | XFreePixmap(dpy, menu->pixmap); |
dbeb9940 |
828 | XftDrawDestroy(menu->draw); |
f15fc339 |
829 | XDestroyWindow(dpy, menu->win); |
ec4ed1ac |
830 | free(menu); |
f15fc339 |
831 | } |
832 | |
a7732690 |
833 | /* cleanup and exit */ |
834 | static void |
257e42cc |
835 | cleanup(struct Menu *rootmenu) |
a7732690 |
836 | { |
257e42cc |
837 | XUngrabPointer(dpy, CurrentTime); |
838 | XUngrabKeyboard(dpy, CurrentTime); |
839 | |
ec4ed1ac |
840 | freemenu(rootmenu); |
dbeb9940 |
841 | |
842 | XftColorFree(dpy, visual, colormap, &dc.normal[ColorBG]); |
843 | XftColorFree(dpy, visual, colormap, &dc.normal[ColorFG]); |
844 | XftColorFree(dpy, visual, colormap, &dc.selected[ColorBG]); |
845 | XftColorFree(dpy, visual, colormap, &dc.selected[ColorFG]); |
fd530f3f |
846 | XftColorFree(dpy, visual, colormap, &dc.separator); |
847 | XftColorFree(dpy, visual, colormap, &dc.border); |
dbeb9940 |
848 | |
f15fc339 |
849 | XFreeGC(dpy, dc.gc); |
a7732690 |
850 | XCloseDisplay(dpy); |
a7732690 |
851 | } |
852 | |
853 | /* show usage */ |
854 | static void |
855 | usage(void) |
856 | { |
c6d9174e |
857 | (void)fprintf(stderr, "usage: xmenu\n"); |
a7732690 |
858 | exit(1); |
859 | } |