~earboxer/suggpicker

ref: 65c5e36ca5199abc0e5f6264d0c4590440f98fa7 suggpicker/main.c -rw-r--r-- 15.2 KiB
65c5e36cZach DeCook main: Remove unused variables 3 months ago
                                                                                
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
#include <poll.h>
#include "proto/wlr-layer-shell-unstable-v1-client-protocol.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wchar.h>

#include "keyboard.h"
#include "config.h"

/* lazy die macro */
#define die(...)                                                               \
	fprintf(stderr, __VA_ARGS__);                                                \
	exit(1)

/* client state */
static const char *namespace = "wlroots";
static struct wl_display *display;
static struct wl_compositor *compositor;
static struct wl_seat *seat;
static struct wl_pointer *pointer;
static struct wl_touch *touch;
static struct wl_output *wl_output;
static struct zwlr_layer_shell_v1 *layer_shell;
static struct zwlr_layer_surface_v1 *layer_surface;

/* drawing */
static struct drw draw_ctx;
static struct drwsurf draw_surf;

/* layer surface parameters */
static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_TOP;
static uint32_t anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
                         ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
                         ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;

/* application state */
static bool run_display = true;
static int cur_x = -1, cur_y = -1;
static bool cur_press = false;
static struct kbd keyboard;
static uint32_t height, normal_height, landscape_height;

/* event handler prototypes */
static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
                             uint32_t serial, struct wl_surface *surface,
                             wl_fixed_t surface_x, wl_fixed_t surface_y);
static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
                             uint32_t serial, struct wl_surface *surface);
static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
                              uint32_t time, wl_fixed_t surface_x,
                              wl_fixed_t surface_y);
static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
                              uint32_t serial, uint32_t time, uint32_t button,
                              uint32_t state);

static void wl_touch_down(void *data, struct wl_touch *wl_touch,
                          uint32_t serial, uint32_t time,
                          struct wl_surface *surface, int32_t id, wl_fixed_t x,
                          wl_fixed_t y);
static void wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial,
                        uint32_t time, int32_t id);
static void wl_touch_motion(void *data, struct wl_touch *wl_touch,
                            uint32_t time, int32_t id, wl_fixed_t x,
                            wl_fixed_t y);
static void wl_touch_frame(void *data, struct wl_touch *wl_touch);
static void wl_touch_cancel(void *data, struct wl_touch *wl_touch);
static void wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id,
                           wl_fixed_t major, wl_fixed_t minor);
static void wl_touch_orientation(void *data, struct wl_touch *wl_touch,
                                 int32_t id, wl_fixed_t orientation);

static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
                                     enum wl_seat_capability caps);
static void seat_handle_name(void *data, struct wl_seat *wl_seat,
                             const char *name);

static void handle_global(void *data, struct wl_registry *registry,
                          uint32_t name, const char *interface,
                          uint32_t version);
static void handle_global_remove(void *data, struct wl_registry *registry,
                                 uint32_t name);

static void layer_surface_configure(void *data,
                                    struct zwlr_layer_surface_v1 *surface,
                                    uint32_t serial, uint32_t w, uint32_t h);
static void layer_surface_closed(void *data,
                                 struct zwlr_layer_surface_v1 *surface);

/* event handlers */
static const struct wl_pointer_listener pointer_listener = {
  .enter = wl_pointer_enter,
  .leave = wl_pointer_leave,
  .motion = wl_pointer_motion,
  .button = wl_pointer_button,
};

static const struct wl_touch_listener touch_listener = {
  .down = wl_touch_down,
  .up = wl_touch_up,
  .motion = wl_touch_motion,
  .frame = wl_touch_frame,
  .cancel = wl_touch_cancel,
  .shape = wl_touch_shape,
  .orientation = wl_touch_orientation,
};

static const struct wl_seat_listener seat_listener = {
  .capabilities = seat_handle_capabilities,
  .name = seat_handle_name,
};

static const struct wl_registry_listener registry_listener = {
  .global = handle_global,
  .global_remove = handle_global_remove,
};

static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
  .configure = layer_surface_configure,
  .closed = layer_surface_closed,
};

/* configuration, allows nested code to access above variables */

char *
estrdup(const char *s) {
	char *p;

	if (!(p = strdup(s))) {
		fprintf(stderr, "strdup:");
		exit(6);
	}

	return p;
}

void
wl_touch_down(void *data, struct wl_touch *wl_touch, uint32_t serial,
              uint32_t time, struct wl_surface *surface, int32_t id,
              wl_fixed_t x, wl_fixed_t y) {
	uint32_t touch_x, touch_y;

	touch_x = wl_fixed_to_int(x);
	touch_y = wl_fixed_to_int(y);

	kbd_motion_key(&keyboard, touch_x, touch_y);
}

void
wl_touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial,
            uint32_t time, int32_t id) {
	kbd_release_key(&keyboard);
}

void
wl_touch_motion(void *data, struct wl_touch *wl_touch, uint32_t time,
                int32_t id, wl_fixed_t x, wl_fixed_t y) {
	uint32_t touch_x, touch_y;

	touch_x = wl_fixed_to_int(x);
	touch_y = wl_fixed_to_int(y);

	kbd_motion_key(&keyboard, touch_x, touch_y);
}

void
wl_touch_frame(void *data, struct wl_touch *wl_touch) {}

void
wl_touch_cancel(void *data, struct wl_touch *wl_touch) {}

void
wl_touch_shape(void *data, struct wl_touch *wl_touch, int32_t id,
               wl_fixed_t major, wl_fixed_t minor) {}

void
wl_touch_orientation(void *data, struct wl_touch *wl_touch, int32_t id,
                     wl_fixed_t orientation) {}

void
wl_pointer_enter(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
                 struct wl_surface *surface, wl_fixed_t surface_x,
                 wl_fixed_t surface_y) {}

void
wl_pointer_leave(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
                 struct wl_surface *surface) {
	cur_x = cur_y = -1;
}

void
wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, uint32_t time,
                  wl_fixed_t surface_x, wl_fixed_t surface_y) {
	cur_x = wl_fixed_to_int(surface_x);
	cur_y = wl_fixed_to_int(surface_y);

	if (cur_press) {
		kbd_motion_key(&keyboard, cur_x, cur_y);
	}
}

void
wl_pointer_button(void *data, struct wl_pointer *wl_pointer, uint32_t serial,
                  uint32_t time, uint32_t button, uint32_t state) {
	cur_press = state == WL_POINTER_BUTTON_STATE_PRESSED;

	if (cur_press) {
		kbd_unpress_key(&keyboard);
	} else {
		kbd_release_key(&keyboard);
	}

	if (cur_press && cur_x >= 0 && cur_y >= 0) {
		kbd_motion_key(&keyboard, cur_x, cur_y);
	}
}

void
seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
                         enum wl_seat_capability caps) {
	if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
		pointer = wl_seat_get_pointer(wl_seat);
		wl_pointer_add_listener(pointer, &pointer_listener, NULL);
	}
	if ((caps & WL_SEAT_CAPABILITY_TOUCH)) {
		touch = wl_seat_get_touch(wl_seat);
		wl_touch_add_listener(touch, &touch_listener, NULL);
	}
}

void
seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {}

static void
display_handle_geometry(void *data, struct wl_output *wl_output, int x, int y,
                        int physical_width, int physical_height, int subpixel,
                        const char *make, const char *model, int transform) {
	if (transform % 2 == 0 && keyboard.landscape) {
		keyboard.landscape = false;
		height = normal_height;
	} else if (transform % 2 != 0 && !keyboard.landscape) {
		keyboard.landscape = true;
		height = landscape_height;
	} else {
		return; // no changes
	}

	zwlr_layer_surface_v1_set_size(layer_surface, 0, height);
	zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
	wl_surface_commit(draw_surf.surf);
}

static void
display_handle_done(void *data, struct wl_output *wl_output) {}

static void
display_handle_scale(void *data, struct wl_output *wl_output, int32_t scale) {
	keyboard.s = scale;
}

static void
display_handle_mode(void *data, struct wl_output *wl_output, uint32_t flags,
                    int width, int height, int refresh) {}

static const struct wl_output_listener output_listener = {
  .geometry = display_handle_geometry,
  .mode = display_handle_mode,
  .done = display_handle_done,
  .scale = display_handle_scale};

void
handle_global(void *data, struct wl_registry *registry, uint32_t name,
              const char *interface, uint32_t version) {
	if (strcmp(interface, wl_compositor_interface.name) == 0) {
		compositor = wl_registry_bind(registry, name, &wl_compositor_interface, 3);
	} else if (strcmp(interface, wl_shm_interface.name) == 0) {
		draw_ctx.shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
	} else if (strcmp(interface, "wl_output") == 0) {
		if (!wl_output) {
			wl_output = wl_registry_bind(registry, name, &wl_output_interface, 2);
			keyboard.s = 1;
			wl_output_add_listener(wl_output, &output_listener, NULL);
		}
	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
		seat = wl_registry_bind(registry, name, &wl_seat_interface, 1);
		wl_seat_add_listener(seat, &seat_listener, NULL);
	} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
		layer_shell =
		  wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, 1);

	}
}

void
handle_global_remove(void *data, struct wl_registry *registry, uint32_t name) {}

void
layer_surface_configure(void *data, struct zwlr_layer_surface_v1 *surface,
                        uint32_t serial, uint32_t w, uint32_t h) {
	if (w != keyboard.w || h != keyboard.h) {
		keyboard.w = w;
		keyboard.h = h;
		kbd_resize(&keyboard);
	}

	zwlr_layer_surface_v1_ack_configure(surface, serial);
}

void
layer_surface_closed(void *data, struct zwlr_layer_surface_v1 *surface) {
	zwlr_layer_surface_v1_destroy(surface);
	wl_surface_destroy(draw_surf.surf);
	run_display = false;
}

void
usage(char *argv0) {
	fprintf(stderr,
	        "usage: %s [-hv] [-H height] [-L landscape height] [-fn font]\n",
	        argv0);
	fprintf(stderr, "Options:\n");
	fprintf(stderr, "  -D         - Enable debug\n");
	fprintf(stderr, "  -H [int]   - Height in pixels\n");
	fprintf(stderr, "  -L [int]   - Landscape height in pixels\n");
	fprintf(stderr, "  --fn [font] - Set font (e.g: DejaVu Sans 20)\n");
	fprintf(stderr, "  --hidden   - Start hidden (send SIGUSR2 to show)\n");
}

void
hide(int sigint) {
	signal(SIGUSR1, hide);
	if (!layer_surface) {
		return;
	}

	zwlr_layer_surface_v1_destroy(layer_surface);
	wl_surface_destroy(draw_surf.surf);
	layer_surface = NULL;
	if (draw_surf.cb) {
		wl_callback_destroy(draw_surf.cb);
		draw_surf.cb = NULL;
	}
}

void
show(int sigint) {
	signal(SIGUSR2, show);
	if (layer_surface) {
		return;
	}

	wl_display_sync(display);

	draw_surf.surf = wl_compositor_create_surface(compositor);
	;
	layer_surface = zwlr_layer_shell_v1_get_layer_surface(
	  layer_shell, draw_surf.surf, wl_output, layer, namespace);

	zwlr_layer_surface_v1_set_size(layer_surface, 0, height);
	zwlr_layer_surface_v1_set_anchor(layer_surface, anchor);
	zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, height);
	zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface, false);
	zwlr_layer_surface_v1_add_listener(layer_surface, &layer_surface_listener,
	                                   NULL);
	wl_surface_commit(draw_surf.surf);

	wl_display_roundtrip(display);
	drwsurf_flip(&draw_surf);
}

void
handle_input(FILE *fd, struct key *sugg, struct kbd *kb) {
	char *line;
	line = malloc(1024);

	if (fgets(line, 1024, fd) != NULL) {
		fprintf(stderr, "Retrieved line: %s", line);
		int i;
		struct key *key = sugg;
		char *l = line;
		for (i = 0; l[i+1]; i++) {
			if (l[i] == '\t') {
				free(key->label);
				key->label = strndup(l,i);
				l += i + 1;
				i = 0;
				key++;
			} else if (l[i] == '\n') {
				break;
			}
		}		
		free(key->label);
		key->label = strndup(l,i);
		key++;
		free(key->label);
		key->label = NULL;
		kbd_init_suggs(sugg, kb->w, kb->h);
		kbd_draw_layout(kb);
	}

	free(line);
}

int
main(int argc, char **argv) {
	/* parse command line arguments */
	const char *fc_font_pattern = NULL;
	height = normal_height = KBD_PIXEL_HEIGHT;
	landscape_height = KBD_PIXEL_LANDSCAPE_HEIGHT;

	/* keyboard settings */
	keyboard.scheme = scheme;

	bool starthidden = false;

	int i;
	for (i = 1; argv[i]; i++) {
		if ((!strcmp(argv[i], "-v")) || (!strcmp(argv[i], "--version"))) {
			printf("suggpicker-%s", VERSION);
			exit(0);
		} else if ((!strcmp(argv[i], "-h")) || (!strcmp(argv[i], "--help"))) {
			usage(argv[0]);
			exit(0);
		} else if (!strcmp(argv[i], "-l")) {
			if (i >= argc - 1) {
				usage(argv[0]);
				exit(1);
			}
		} else if (!strcmp(argv[i], "-H")) {
			if (i >= argc - 1) {
				usage(argv[0]);
				exit(1);
			}
			height = normal_height = atoi(argv[++i]);
		} else if (!strcmp(argv[i], "-L")) {
			if (i >= argc - 1) {
				usage(argv[0]);
				exit(1);
			}
			landscape_height = atoi(argv[++i]);
		} else if (!strcmp(argv[i], "-D")) {
			keyboard.debug = true;
		} else if ((!strcmp(argv[i], "-fn")) || (!strcmp(argv[i], "--fn"))) {
			fc_font_pattern = estrdup(argv[++i]);
		} else if ((!strcmp(argv[i], "-hidden")) ||
		           (!strcmp(argv[i], "--hidden"))) {
			starthidden = true;
		} else {
			fprintf(stderr, "Invalid argument: %s\n", argv[i]);
			usage(argv[0]);
			exit(1);
		}
	}

	if (!fc_font_pattern) {
		fc_font_pattern = default_font;
	}

	display = wl_display_connect(NULL);
	if (display == NULL) {
		die("Failed to create display\n");
	}

	draw_surf.ctx = &draw_ctx;
	keyboard.surf = &draw_surf;

	struct wl_registry *registry = wl_display_get_registry(display);
	wl_registry_add_listener(registry, &registry_listener, NULL);
	wl_display_roundtrip(display);

	if (compositor == NULL) {
		die("wl_compositor not available\n");
	}
	if (draw_ctx.shm == NULL) {
		die("wl_shm not available\n");
	}
	if (layer_shell == NULL) {
		die("layer_shell not available\n");
	}

	kbd_init(&keyboard);

	draw_ctx.font_description =
	  pango_font_description_from_string(fc_font_pattern);

	if (!starthidden) {
		show(0);
	} else {
		signal(SIGUSR2, show);
	}

	signal(SIGUSR1, hide);

	// We need a more complicated event loop than wayland's default.
	struct pollfd fds[2];
	fds[0].fd = STDIN_FILENO;
	fds[0].events = POLLIN;
	fds[1].fd = wl_display_get_fd(display);
	fds[1].events = POLLIN;
	// Initial dispatch so that bar appears (and can take events).
	wl_display_dispatch(display);
	while (run_display) {
		while(layer_surface && poll(fds, 2, -1) != -1) {
			if (fds[0].revents & POLLIN) {
				handle_input(stdin, keyboard.suggs, &keyboard);
			}
			if (wl_display_dispatch(display) == -1) {
				break;
			}
			wl_display_flush(display);
		}
		wl_display_roundtrip(display);
		while (run_display && !layer_surface) {
			// Hidden
			sleep(1);
		}
	}

	if (fc_font_pattern != default_font) {
		free((void *)fc_font_pattern);
	}

	return 0;
}