1 /* Copyright (c) 2012, Bastien Dejean
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 bool restore_tree(const char *file_path)
45 char *json = read_string(file_path, &jslen);
53 jsmntok_t *tokens = malloc(nbtok * sizeof(jsmntok_t));
56 perror("Restore tree: malloc");
64 while ((ret = jsmn_parse(&parser, json, jslen, tokens, nbtok)) == JSMN_ERROR_NOMEM) {
66 jsmntok_t *rtokens = realloc(tokens, nbtok * sizeof(jsmntok_t));
67 if (rtokens == NULL) {
68 perror("Restore tree: realloc");
78 warn("Restore tree: jsmn_parse: ");
80 case JSMN_ERROR_NOMEM:
81 warn("not enough memory.\n");
83 case JSMN_ERROR_INVAL:
84 warn("found invalid character inside JSON string.\n");
87 warn("not a full JSON packet.\n");
90 warn("unknown error.\n");
100 int num = tokens[0].size;
110 while (mon_head != NULL) {
111 remove_monitor(mon_head);
114 jsmntok_t *t = tokens + 1;
115 char *focusedMonitorName = NULL, *primaryMonitorName = NULL;
117 for (int i = 0; i < num; i++) {
118 if (keyeq("focusedMonitorName", t, json)) {
119 free(focusedMonitorName);
121 focusedMonitorName = copy_string(json + t->start, t->end - t->start);
122 } else if (keyeq("primaryMonitorName", t, json)) {
123 free(primaryMonitorName);
125 primaryMonitorName = copy_string(json + t->start, t->end - t->start);
126 } else if (keyeq("clientsCount", t, json)) {
128 sscanf(json + t->start, "%u", &clients_count);
129 } else if (keyeq("monitors", t, json)) {
133 for (int j = 0; j < s; j++) {
134 monitor_t *m = restore_monitor(&t, json);
135 if (m->desk == NULL) {
136 add_desktop(m, make_desktop(NULL, XCB_NONE));
141 } else if (keyeq("focusHistory", t, json)) {
143 restore_history(&t, json);
145 } else if (keyeq("stackingList", t, json)) {
147 restore_stack(&t, json);
153 if (focusedMonitorName != NULL) {
155 if (locate_monitor(focusedMonitorName, &loc)) {
160 if (primaryMonitorName != NULL) {
162 if (locate_monitor(primaryMonitorName, &loc)) {
163 pri_mon = loc.monitor;
167 free(focusedMonitorName);
168 free(primaryMonitorName);
170 for (monitor_t *m = mon_head; m != NULL; m = m->next) {
171 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
172 refresh_presel_feebacks_in(d->root, d, m);
173 restack_presel_feedback(d);
174 for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root)) {
175 if (n->client == NULL) {
178 initialize_client(n);
179 uint32_t values[] = {CLIENT_EVENT_MASK | (focus_follows_pointer ? XCB_EVENT_MASK_ENTER_WINDOW : 0)};
180 xcb_change_window_attributes(dpy, n->id, XCB_CW_EVENT_MASK, values);
185 ewmh_update_client_list(false);
186 ewmh_update_client_list(true);
187 ewmh_update_active_window();
188 ewmh_update_number_of_desktops();
189 ewmh_update_current_desktop();
190 ewmh_update_desktop_names();
198 #define RESTORE_INT(k, p) \
199 } else if (keyeq(#k, *t, json)) { \
201 sscanf(json + (*t)->start, "%i", p);
203 #define RESTORE_UINT(k, p) \
204 } else if (keyeq(#k, *t, json)) { \
206 sscanf(json + (*t)->start, "%u", p);
208 #define RESTORE_USINT(k, p) \
209 } else if (keyeq(#k, *t, json)) { \
211 sscanf(json + (*t)->start, "%hu", p);
213 #define RESTORE_DOUBLE(k, p) \
214 } else if (keyeq(#k, *t, json)) { \
216 sscanf(json + (*t)->start, "%lf", p);
218 #define RESTORE_ANY(k, p, f) \
219 } else if (keyeq(#k, *t, json)) { \
221 char *val = copy_string(json + (*t)->start, (*t)->end - (*t)->start); \
225 #define RESTORE_BOOL(k, p) RESTORE_ANY(k, p, parse_bool)
227 monitor_t *restore_monitor(jsmntok_t **t, char *json)
229 int num = (*t)->size;
231 monitor_t *m = make_monitor(NULL, UINT32_MAX);
232 char *focusedDesktopName = NULL;
234 for (int i = 0; i < num; i++) {
235 if (keyeq("name", *t, json)) {
237 snprintf(m->name, (*t)->end - (*t)->start + 1, "%s", json + (*t)->start);
238 RESTORE_UINT(id, &m->id)
239 RESTORE_UINT(randrId, &m->randr_id)
240 RESTORE_BOOL(wired, &m->wired)
241 RESTORE_UINT(stickyCount, &m->sticky_count)
242 RESTORE_INT(windowGap, &m->window_gap)
243 RESTORE_UINT(borderWidth, &m->border_width)
244 } else if (keyeq("padding", *t, json)) {
246 restore_padding(&m->padding, t, json);
248 } else if (keyeq("rectangle", *t, json)) {
250 restore_rectangle(&m->rectangle, t, json);
251 update_root(m, &m->rectangle);
253 } else if (keyeq("focusedDesktopName", *t, json)) {
254 free(focusedDesktopName);
256 focusedDesktopName = copy_string(json + (*t)->start, (*t)->end - (*t)->start);
257 } else if (keyeq("desktops", *t, json)) {
261 for (int j = 0; j < s; j++) {
262 desktop_t *d = restore_desktop(t, json);
267 warn("Restore monitor: unknown key: '%.*s'.\n", (*t)->end - (*t)->start, json + (*t)->start);
273 if (focusedDesktopName != NULL) {
274 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
275 if (streq(focusedDesktopName, d->name)) {
282 free(focusedDesktopName);
287 desktop_t *restore_desktop(jsmntok_t **t, char *json)
291 desktop_t *d = make_desktop(NULL, UINT32_MAX);
292 xcb_window_t focusedNodeId = XCB_NONE;
294 for (int i = 0; i < s; i++) {
295 if (keyeq("name", *t, json)) {
297 snprintf(d->name, (*t)->end - (*t)->start + 1, "%s", json + (*t)->start);
298 RESTORE_UINT(id, &d->id)
299 RESTORE_ANY(layout, &d->layout, parse_layout)
300 RESTORE_INT(windowGap, &d->window_gap)
301 RESTORE_UINT(borderWidth, &d->border_width)
302 } else if (keyeq("focusedNodeId", *t, json)) {
304 sscanf(json + (*t)->start, "%u", &focusedNodeId);
305 } else if (keyeq("padding", *t, json)) {
307 restore_padding(&d->padding, t, json);
309 } else if (keyeq("root", *t, json)) {
311 d->root = restore_node(t, json);
314 warn("Restore desktop: unknown key: '%.*s'.\n", (*t)->end - (*t)->start, json + (*t)->start);
320 if (focusedNodeId != XCB_NONE) {
321 d->focus = find_by_id_in(d->root, focusedNodeId);
327 node_t *restore_node(jsmntok_t **t, char *json)
329 if ((*t)->type == JSMN_PRIMITIVE) {
335 /* hack to prevent a new ID from being generated */
336 node_t *n = make_node(UINT32_MAX);
338 for (int i = 0; i < s; i++) {
339 if (keyeq("id", *t, json)) {
341 sscanf(json + (*t)->start, "%u", &n->id);
342 RESTORE_ANY(splitType, &n->split_type, parse_split_type)
343 RESTORE_DOUBLE(splitRatio, &n->split_ratio)
344 RESTORE_INT(birthRotation, &n->birth_rotation)
345 RESTORE_BOOL(vacant, &n->vacant)
346 RESTORE_BOOL(sticky, &n->sticky)
347 RESTORE_BOOL(private, &n->private)
348 RESTORE_BOOL(locked, &n->locked)
349 } else if (keyeq("presel", *t, json)) {
351 n->presel = restore_presel(t, json);
353 } else if (keyeq("rectangle", *t, json)) {
355 restore_rectangle(&n->rectangle, t, json);
357 } else if (keyeq("firstChild", *t, json)) {
359 node_t *fc = restore_node(t, json);
365 } else if (keyeq("secondChild", *t, json)) {
367 node_t *sc = restore_node(t, json);
368 n->second_child = sc;
373 } else if (keyeq("client", *t, json)) {
375 n->client = restore_client(t, json);
378 warn("Restore node: unknown key: '%.*s'.\n", (*t)->end - (*t)->start, json + (*t)->start);
388 presel_t *restore_presel(jsmntok_t **t, char *json)
390 if ((*t)->type == JSMN_PRIMITIVE) {
396 presel_t *p = make_presel();
398 for (int i = 0; i < s; i++) {
399 if (keyeq("splitRatio", *t, json)) {
401 sscanf(json + (*t)->start, "%lf", &p->split_ratio);
402 RESTORE_ANY(splitDir, &p->split_dir, parse_direction)
413 client_t *restore_client(jsmntok_t **t, char *json)
415 if ((*t)->type == JSMN_PRIMITIVE) {
421 client_t *c = make_client();
423 for (int i = 0; i < s; i++) {
424 if (keyeq("className", *t, json)) {
426 snprintf(c->class_name, (*t)->end - (*t)->start + 1, "%s", json + (*t)->start);
427 } else if (keyeq("instanceName", *t, json)) {
429 snprintf(c->instance_name, (*t)->end - (*t)->start + 1, "%s", json + (*t)->start);
430 RESTORE_ANY(state, &c->state, parse_client_state)
431 RESTORE_ANY(lastState, &c->last_state, parse_client_state)
432 RESTORE_ANY(layer, &c->layer, parse_stack_layer)
433 RESTORE_ANY(lastLayer, &c->last_layer, parse_stack_layer)
434 RESTORE_UINT(borderWidth, &c->border_width)
435 RESTORE_BOOL(urgent, &c->urgent)
436 RESTORE_BOOL(visible, &c->visible)
437 } else if (keyeq("tiledRectangle", *t, json)) {
439 restore_rectangle(&c->tiled_rectangle, t, json);
441 } else if (keyeq("floatingRectangle", *t, json)) {
443 restore_rectangle(&c->floating_rectangle, t, json);
446 warn("Restore client: unknown key: '%.*s'.\n", (*t)->end - (*t)->start, json + (*t)->start);
457 void restore_rectangle(xcb_rectangle_t *r, jsmntok_t **t, char *json)
462 for (int i = 0; i < s; i++) {
463 if (keyeq("x", *t, json)) {
465 sscanf(json + (*t)->start, "%hi", &r->x);
466 } else if (keyeq("y", *t, json)) {
468 sscanf(json + (*t)->start, "%hi", &r->y);
469 } else if (keyeq("width", *t, json)) {
471 sscanf(json + (*t)->start, "%hu", &r->width);
472 } else if (keyeq("height", *t, json)) {
474 sscanf(json + (*t)->start, "%hu", &r->height);
480 void restore_padding(padding_t *p, jsmntok_t **t, char *json)
485 for (int i = 0; i < s; i++) {
486 if (keyeq("top", *t, json)) {
488 sscanf(json + (*t)->start, "%i", &p->top);
489 } else if (keyeq("right", *t, json)) {
491 sscanf(json + (*t)->start, "%i", &p->right);
492 } else if (keyeq("bottom", *t, json)) {
494 sscanf(json + (*t)->start, "%i", &p->bottom);
495 } else if (keyeq("left", *t, json)) {
497 sscanf(json + (*t)->start, "%i", &p->left);
503 void restore_history(jsmntok_t **t, char *json)
508 for (int i = 0; i < s; i++) {
509 coordinates_t loc = {NULL, NULL, NULL};
510 restore_coordinates(&loc, t, json);
511 if (loc.monitor != NULL && loc.desktop != NULL) {
512 history_add(loc.monitor, loc.desktop, loc.node);
517 void restore_coordinates(coordinates_t *loc, jsmntok_t **t, char *json)
522 for (int i = 0; i < s; i++) {
523 if (keyeq("monitorName", *t, json)) {
525 char *name = copy_string(json + (*t)->start, (*t)->end - (*t)->start);
526 loc->monitor = find_monitor(name);
528 } else if (keyeq("desktopName", *t, json)) {
530 char *name = copy_string(json + (*t)->start, (*t)->end - (*t)->start);
531 loc->desktop = find_desktop_in(name, loc->monitor);
533 } else if (keyeq("nodeId", *t, json)) {
536 sscanf(json + (*t)->start, "%u", &id);
537 loc->node = find_by_id_in(loc->desktop!=NULL?loc->desktop->root:NULL, id);
543 void restore_stack(jsmntok_t **t, char *json)
548 for (int i = 0; i < s; i++) {
550 sscanf(json + (*t)->start, "%u", &id);
552 if (locate_window(id, &loc)) {
553 stack_insert_after(stack_tail, loc.node);
562 #undef RESTORE_DOUBLE
566 bool keyeq(char *s, jsmntok_t *key, char *json)
568 size_t n = key->end - key->start;
569 return (strlen(s) == n && strncmp(s, json + key->start, n) == 0);