i3
manage.c
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1 #undef I3__FILE__
2 #define I3__FILE__ "manage.c"
3 /*
4  * vim:ts=4:sw=4:expandtab
5  *
6  * i3 - an improved dynamic tiling window manager
7  * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
8  *
9  * manage.c: Initially managing new windows (or existing ones on restart).
10  *
11  */
12 #include "all.h"
13 #include "yajl_utils.h"
14 
15 #include <yajl/yajl_gen.h>
16 
17 /*
18  * Go through all existing windows (if the window manager is restarted) and manage them
19  *
20  */
21 void manage_existing_windows(xcb_window_t root) {
22  xcb_query_tree_reply_t *reply;
23  int i, len;
24  xcb_window_t *children;
25  xcb_get_window_attributes_cookie_t *cookies;
26 
27  /* Get the tree of windows whose parent is the root window (= all) */
28  if ((reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, root), 0)) == NULL)
29  return;
30 
31  len = xcb_query_tree_children_length(reply);
32  cookies = smalloc(len * sizeof(*cookies));
33 
34  /* Request the window attributes for every window */
35  children = xcb_query_tree_children(reply);
36  for (i = 0; i < len; ++i)
37  cookies[i] = xcb_get_window_attributes(conn, children[i]);
38 
39  /* Call manage_window with the attributes for every window */
40  for (i = 0; i < len; ++i)
41  manage_window(children[i], cookies[i], true);
42 
43  free(reply);
44  free(cookies);
45 }
46 
47 /*
48  * Restores the geometry of each window by reparenting it to the root window
49  * at the position of its frame.
50  *
51  * This is to be called *only* before exiting/restarting i3 because of evil
52  * side-effects which are to be expected when continuing to run i3.
53  *
54  */
55 void restore_geometry(void) {
56  DLOG("Restoring geometry\n");
57 
58  Con *con;
60  if (con->window) {
61  DLOG("Re-adding X11 border of %d px\n", con->border_width);
62  con->window_rect.width += (2 * con->border_width);
63  con->window_rect.height += (2 * con->border_width);
65  DLOG("placing window %08x at %d %d\n", con->window->id, con->rect.x, con->rect.y);
66  xcb_reparent_window(conn, con->window->id, root,
67  con->rect.x, con->rect.y);
68  }
69 
70  /* Strictly speaking, this line doesn’t really belong here, but since we
71  * are syncing, let’s un-register as a window manager first */
72  xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){ XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT });
73 
74  /* Make sure our changes reach the X server, we restart/exit now */
75  xcb_aux_sync(conn);
76 }
77 
78 /*
79  * The following function sends a new window event, which consists
80  * of fields "change" and "container", the latter containing a dump
81  * of the window's container.
82  *
83  */
84 static void ipc_send_window_new_event(Con *con) {
85  setlocale(LC_NUMERIC, "C");
86  yajl_gen gen = ygenalloc();
87 
88  y(map_open);
89 
90  ystr("change");
91  ystr("new");
92 
93  ystr("container");
94  dump_node(gen, con, false);
95 
96  y(map_close);
97 
98  const unsigned char *payload;
99  ylength length;
100  y(get_buf, &payload, &length);
101 
102  ipc_send_event("window", I3_IPC_EVENT_WINDOW, (const char *)payload);
103  y(free);
104  setlocale(LC_NUMERIC, "");
105 }
106 
107 /*
108  * Do some sanity checks and then reparent the window.
109  *
110  */
111 void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie,
112  bool needs_to_be_mapped) {
113  xcb_drawable_t d = { window };
114  xcb_get_geometry_cookie_t geomc;
115  xcb_get_geometry_reply_t *geom;
116  xcb_get_window_attributes_reply_t *attr = NULL;
117 
118  xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie,
119  utf8_title_cookie, title_cookie,
120  class_cookie, leader_cookie, transient_cookie,
121  role_cookie, startup_id_cookie, wm_hints_cookie;
122 
123 
124  geomc = xcb_get_geometry(conn, d);
125 
126  /* Check if the window is mapped (it could be not mapped when intializing and
127  calling manage_window() for every window) */
128  if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) {
129  DLOG("Could not get attributes\n");
130  xcb_discard_reply(conn, geomc.sequence);
131  return;
132  }
133 
134  if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) {
135  xcb_discard_reply(conn, geomc.sequence);
136  goto out;
137  }
138 
139  /* Don’t manage clients with the override_redirect flag */
140  if (attr->override_redirect) {
141  xcb_discard_reply(conn, geomc.sequence);
142  goto out;
143  }
144 
145  /* Check if the window is already managed */
146  if (con_by_window_id(window) != NULL) {
147  DLOG("already managed (by con %p)\n", con_by_window_id(window));
148  xcb_discard_reply(conn, geomc.sequence);
149  goto out;
150  }
151 
152  /* Get the initial geometry (position, size, …) */
153  if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) {
154  DLOG("could not get geometry\n");
155  goto out;
156  }
157 
158  uint32_t values[1];
159 
160  /* Set a temporary event mask for the new window, consisting only of
161  * PropertyChange and StructureNotify. We need to be notified of
162  * PropertyChanges because the client can change its properties *after* we
163  * requested them but *before* we actually reparented it and have set our
164  * final event mask.
165  * We need StructureNotify because the client may unmap the window before
166  * we get to re-parent it.
167  * If this request fails, we assume the client has already unmapped the
168  * window between the MapRequest and our event mask change. */
169  values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
170  XCB_EVENT_MASK_STRUCTURE_NOTIFY;
171  xcb_void_cookie_t event_mask_cookie =
172  xcb_change_window_attributes_checked(conn, window, XCB_CW_EVENT_MASK, values);
173  if (xcb_request_check(conn, event_mask_cookie) != NULL) {
174  LOG("Could not change event mask, the window probably already disappeared.\n");
175  goto out;
176  }
177 
178 #define GET_PROPERTY(atom, len) xcb_get_property(conn, false, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, len)
179 
180  wm_type_cookie = GET_PROPERTY(A__NET_WM_WINDOW_TYPE, UINT32_MAX);
181  strut_cookie = GET_PROPERTY(A__NET_WM_STRUT_PARTIAL, UINT32_MAX);
182  state_cookie = GET_PROPERTY(A__NET_WM_STATE, UINT32_MAX);
183  utf8_title_cookie = GET_PROPERTY(A__NET_WM_NAME, 128);
184  leader_cookie = GET_PROPERTY(A_WM_CLIENT_LEADER, UINT32_MAX);
185  transient_cookie = GET_PROPERTY(XCB_ATOM_WM_TRANSIENT_FOR, UINT32_MAX);
186  title_cookie = GET_PROPERTY(XCB_ATOM_WM_NAME, 128);
187  class_cookie = GET_PROPERTY(XCB_ATOM_WM_CLASS, 128);
188  role_cookie = GET_PROPERTY(A_WM_WINDOW_ROLE, 128);
189  startup_id_cookie = GET_PROPERTY(A__NET_STARTUP_ID, 512);
190  wm_hints_cookie = xcb_icccm_get_wm_hints(conn, window);
191  /* TODO: also get wm_normal_hints here. implement after we got rid of xcb-event */
192 
193  DLOG("Managing window 0x%08x\n", window);
194 
195  i3Window *cwindow = scalloc(sizeof(i3Window));
196  cwindow->id = window;
197  cwindow->depth = get_visual_depth(attr->visual);
198 
199  /* We need to grab the mouse buttons for click to focus */
200  xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
201  XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
202  1 /* left mouse button */,
203  XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
204 
205  xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
206  XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
207  2 /* middle mouse button */,
208  XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
209 
210  xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
211  XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
212  3 /* right mouse button */,
213  XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
214 
215  /* update as much information as possible so far (some replies may be NULL) */
216  window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL), true);
217  window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL), true);
218  window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL), true);
219  window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL));
220  window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL));
221  window_update_strut_partial(cwindow, xcb_get_property_reply(conn, strut_cookie, NULL));
222  window_update_role(cwindow, xcb_get_property_reply(conn, role_cookie, NULL), true);
223  window_update_hints(cwindow, xcb_get_property_reply(conn, wm_hints_cookie, NULL));
224 
225  xcb_get_property_reply_t *startup_id_reply;
226  startup_id_reply = xcb_get_property_reply(conn, startup_id_cookie, NULL);
227  char *startup_ws = startup_workspace_for_window(cwindow, startup_id_reply);
228  DLOG("startup workspace = %s\n", startup_ws);
229 
230  /* check if the window needs WM_TAKE_FOCUS */
231  cwindow->needs_take_focus = window_supports_protocol(cwindow->id, A_WM_TAKE_FOCUS);
232 
233  /* Where to start searching for a container that swallows the new one? */
234  Con *search_at = croot;
235 
236  xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
237  if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DOCK)) {
238  LOG("This window is of type dock\n");
239  Output *output = get_output_containing(geom->x, geom->y);
240  if (output != NULL) {
241  DLOG("Starting search at output %s\n", output->name);
242  search_at = output->con;
243  }
244 
245  /* find out the desired position of this dock window */
246  if (cwindow->reserved.top > 0 && cwindow->reserved.bottom == 0) {
247  DLOG("Top dock client\n");
248  cwindow->dock = W_DOCK_TOP;
249  } else if (cwindow->reserved.top == 0 && cwindow->reserved.bottom > 0) {
250  DLOG("Bottom dock client\n");
251  cwindow->dock = W_DOCK_BOTTOM;
252  } else {
253  DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
254  if (geom->y < (search_at->rect.height / 2)) {
255  DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
256  geom->y, (search_at->rect.height / 2));
257  cwindow->dock = W_DOCK_TOP;
258  } else {
259  DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
260  geom->y, (search_at->rect.height / 2));
261  cwindow->dock = W_DOCK_BOTTOM;
262  }
263  }
264  }
265 
266  DLOG("Initial geometry: (%d, %d, %d, %d)\n", geom->x, geom->y, geom->width, geom->height);
267 
268  Con *nc = NULL;
269  Match *match = NULL;
270  Assignment *assignment;
271 
272  /* TODO: two matches for one container */
273 
274  /* See if any container swallows this new window */
275  nc = con_for_window(search_at, cwindow, &match);
276  if (nc == NULL) {
277  /* If not, check if it is assigned to a specific workspace / output */
278  if ((assignment = assignment_for(cwindow, A_TO_WORKSPACE | A_TO_OUTPUT))) {
279  DLOG("Assignment matches (%p)\n", match);
280  if (assignment->type == A_TO_WORKSPACE) {
281  nc = con_descend_tiling_focused(workspace_get(assignment->dest.workspace, NULL));
282  DLOG("focused on ws %s: %p / %s\n", assignment->dest.workspace, nc, nc->name);
283  if (nc->type == CT_WORKSPACE)
284  nc = tree_open_con(nc, cwindow);
285  else nc = tree_open_con(nc->parent, cwindow);
286  }
287  /* TODO: handle assignments with type == A_TO_OUTPUT */
288  } else if (startup_ws) {
289  /* If it’s not assigned, but was started on a specific workspace,
290  * we want to open it there */
291  DLOG("Using workspace on which this application was started (%s)\n", startup_ws);
292  nc = con_descend_tiling_focused(workspace_get(startup_ws, NULL));
293  DLOG("focused on ws %s: %p / %s\n", startup_ws, nc, nc->name);
294  if (nc->type == CT_WORKSPACE)
295  nc = tree_open_con(nc, cwindow);
296  else nc = tree_open_con(nc->parent, cwindow);
297  } else {
298  /* If not, insert it at the currently focused position */
299  if (focused->type == CT_CON && con_accepts_window(focused)) {
300  LOG("using current container, focused = %p, focused->name = %s\n",
301  focused, focused->name);
302  nc = focused;
303  } else nc = tree_open_con(NULL, cwindow);
304  }
305  } else {
306  /* M_BELOW inserts the new window as a child of the one which was
307  * matched (e.g. dock areas) */
308  if (match != NULL && match->insert_where == M_BELOW) {
309  nc = tree_open_con(nc, cwindow);
310  }
311  }
312 
313  DLOG("new container = %p\n", nc);
314  nc->window = cwindow;
315  x_reinit(nc);
316 
317  nc->border_width = geom->border_width;
318 
319  char *name;
320  sasprintf(&name, "[i3 con] container around %p", cwindow);
321  x_set_name(nc, name);
322  free(name);
323 
324  Con *ws = con_get_workspace(nc);
325  Con *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL);
326  if (fs == NULL)
327  fs = con_get_fullscreen_con(croot, CF_GLOBAL);
328 
329  if (fs == NULL) {
330  DLOG("Not in fullscreen mode, focusing\n");
331  if (!cwindow->dock) {
332  /* Check that the workspace is visible and on the same output as
333  * the current focused container. If the window was assigned to an
334  * invisible workspace, we should not steal focus. */
335  Con *current_output = con_get_output(focused);
336  Con *target_output = con_get_output(ws);
337 
338  if (workspace_is_visible(ws) && current_output == target_output) {
339  if (!match || !match->restart_mode) {
340  con_focus(nc);
341  } else DLOG("not focusing, matched with restart_mode == true\n");
342  } else DLOG("workspace not visible, not focusing\n");
343  } else DLOG("dock, not focusing\n");
344  } else {
345  DLOG("fs = %p, ws = %p, not focusing\n", fs, ws);
346  /* Insert the new container in focus stack *after* the currently
347  * focused (fullscreen) con. This way, the new container will be
348  * focused after we return from fullscreen mode */
349  Con *first = TAILQ_FIRST(&(nc->parent->focus_head));
350  if (first != nc) {
351  /* We only modify the focus stack if the container is not already
352  * the first one. This can happen when existing containers swallow
353  * new windows, for example when restarting. */
354  TAILQ_REMOVE(&(nc->parent->focus_head), nc, focused);
355  TAILQ_INSERT_AFTER(&(nc->parent->focus_head), first, nc, focused);
356  }
357  }
358 
359  /* set floating if necessary */
360  bool want_floating = false;
361  if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DIALOG) ||
362  xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_UTILITY) ||
363  xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_TOOLBAR) ||
364  xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_SPLASH)) {
365  LOG("This window is a dialog window, setting floating\n");
366  want_floating = true;
367  }
368 
369  FREE(reply);
370 
371  if (cwindow->transient_for != XCB_NONE ||
372  (cwindow->leader != XCB_NONE &&
373  cwindow->leader != cwindow->id &&
374  con_by_window_id(cwindow->leader) != NULL)) {
375  LOG("This window is transient for another window, setting floating\n");
376  want_floating = true;
377 
378  if (config.popup_during_fullscreen == PDF_LEAVE_FULLSCREEN &&
379  fs != NULL) {
380  LOG("There is a fullscreen window, leaving fullscreen mode\n");
381  con_toggle_fullscreen(fs, CF_OUTPUT);
382  } else if (config.popup_during_fullscreen == PDF_SMART &&
383  fs != NULL &&
384  fs->window != NULL) {
385  i3Window *transient_win = cwindow;
386  while (transient_win != NULL &&
387  transient_win->transient_for != XCB_NONE) {
388  if (transient_win->transient_for == fs->window->id) {
389  LOG("This floating window belongs to the fullscreen window (popup_during_fullscreen == smart)\n");
390  con_focus(nc);
391  break;
392  }
393  Con *next_transient = con_by_window_id(transient_win->transient_for);
394  if (next_transient == NULL)
395  break;
396  transient_win = next_transient->window;
397  }
398  }
399  }
400 
401  /* dock clients cannot be floating, that makes no sense */
402  if (cwindow->dock)
403  want_floating = false;
404 
405  /* Store the requested geometry. The width/height gets raised to at least
406  * 75x50 when entering floating mode, which is the minimum size for a
407  * window to be useful (smaller windows are usually overlays/toolbars/…
408  * which are not managed by the wm anyways). We store the original geometry
409  * here because it’s used for dock clients. */
410  nc->geometry = (Rect){ geom->x, geom->y, geom->width, geom->height };
411 
412  if (want_floating) {
413  DLOG("geometry = %d x %d\n", nc->geometry.width, nc->geometry.height);
414  floating_enable(nc, true);
415  }
416 
417  /* to avoid getting an UnmapNotify event due to reparenting, we temporarily
418  * declare no interest in any state change event of this window */
419  values[0] = XCB_NONE;
420  xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
421 
422  xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame, 0, 0);
423  if (xcb_request_check(conn, rcookie) != NULL) {
424  LOG("Could not reparent the window, aborting\n");
425  goto geom_out;
426  }
427 
428  values[0] = CHILD_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
429  xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
430  xcb_flush(conn);
431 
432  reply = xcb_get_property_reply(conn, state_cookie, NULL);
433  if (xcb_reply_contains_atom(reply, A__NET_WM_STATE_FULLSCREEN))
434  con_toggle_fullscreen(nc, CF_OUTPUT);
435 
436  FREE(reply);
437 
438  /* Put the client inside the save set. Upon termination (whether killed or
439  * normal exit does not matter) of the window manager, these clients will
440  * be correctly reparented to their most closest living ancestor (=
441  * cleanup) */
442  xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window);
443 
444  /* Check if any assignments match */
445  run_assignments(cwindow);
446 
447  /* 'ws' may be invalid because of the assignments, e.g. when the user uses
448  * "move window to workspace 1", but had it assigned to workspace 2. */
449  ws = con_get_workspace(nc);
450 
451  /* If this window was put onto an invisible workspace (via assignments), we
452  * render this workspace. It wouldn’t be rendered in our normal code path
453  * because only the visible workspaces get rendered.
454  *
455  * By rendering the workspace, we assign proper coordinates (read: not
456  * width=0, height=0) to the window, which is important for windows who
457  * actually use them to position their GUI elements, e.g. rhythmbox. */
458  if (ws && !workspace_is_visible(ws)) {
459  /* This is a bit hackish: we need to copy the content container’s rect
460  * to the workspace, because calling render_con() on the content
461  * container would also take the shortcut and not render the invisible
462  * workspace at all. However, just calling render_con() on the
463  * workspace isn’t enough either — it needs the rect. */
464  ws->rect = ws->parent->rect;
465  render_con(ws, true);
466  }
467  tree_render();
468 
469  /* Send an event about window creation */
471 
472 geom_out:
473  free(geom);
474 out:
475  free(attr);
476  return;
477 }
Con * con_for_window(Con *con, i3Window *window, Match **store_match)
Returns the first container below &#39;con&#39; which wants to swallow this window TODO: priority.
Definition: con.c:478
char * name
Name of the output.
Definition: data.h:297
#define DLOG(fmt,...)
Definition: log.h:28
A &#39;Con&#39; represents everything from the X11 root window down to a single X11 window.
Definition: data.h:457
void window_update_leader(i3Window *win, xcb_get_property_reply_t *prop)
Updates the CLIENT_LEADER (logical parent window).
Definition: window.c:125
void con_toggle_fullscreen(Con *con, int fullscreen_mode)
Toggles fullscreen mode for the given container.
Definition: con.c:576
struct all_cons_head all_cons
Definition: tree.c:17
Config config
Definition: config.c:19
uint32_t bottom
Definition: data.h:123
#define ygenalloc()
Definition: yajl_utils.h:26
uint32_t y
Definition: data.h:109
bool workspace_is_visible(Con *ws)
Returns true if the workspace is currently visible.
Definition: workspace.c:233
struct Con * croot
Definition: tree.c:14
struct Rect window_rect
Definition: data.h:493
An Assignment makes specific windows go to a specific workspace/output or run a command for that wind...
Definition: data.h:421
void window_update_strut_partial(i3Window *win, xcb_get_property_reply_t *prop)
Updates the _NET_WM_STRUT_PARTIAL (reserved pixels at the screen edges)
Definition: window.c:173
struct Rect rect
Definition: data.h:492
void restore_geometry(void)
Restores the geometry of each window by reparenting it to the root window at the position of its fram...
Definition: manage.c:55
void render_con(Con *con, bool render_fullscreen)
&quot;Renders&quot; the given container (and its children), meaning that all rects are updated correctly...
Definition: render.c:126
A &quot;match&quot; is a data structure which acts like a mask or expression to match certain windows or not...
Definition: data.h:371
struct Window * window
Definition: data.h:525
Assignment * assignment_for(i3Window *window, int type)
Returns the first matching assignment for the given window.
Definition: assignments.c:72
#define xcb_icccm_get_wm_hints
Definition: xcb_compat.h:30
union Assignment::@17 dest
destination workspace/output/command, depending on the type
void * scalloc(size_t size)
Safe-wrapper around calloc which exits if malloc returns NULL (meaning that there is no more memory a...
Con * con_get_workspace(Con *con)
Gets the workspace container this node is on.
Definition: con.c:308
int border_width
Definition: data.h:518
#define FREE(pointer)
Definition: util.h:47
void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r)
Configures the given window to have the size/position specified by given rect.
Definition: xcb.c:145
struct Rect Rect
Definition: data.h:44
#define TAILQ_REMOVE(head, elm, field)
Definition: queue.h:387
void window_update_role(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt)
Updates the WM_WINDOW_ROLE.
Definition: window.c:198
xcb_connection_t * conn
Definition: main.c:42
void x_reinit(Con *con)
Re-initializes the associated X window state for this container.
Definition: x.c:161
static void ipc_send_window_new_event(Con *con)
Definition: manage.c:84
Con * con_descend_tiling_focused(Con *con)
Returns the focused con inside this client, descending the tree as far as possible.
Definition: con.c:983
bool con_accepts_window(Con *con)
Returns true if this node accepts a window (if the node swallows windows, it might already have swall...
Definition: con.c:275
Con * tree_open_con(Con *con, i3Window *window)
Opens an empty container in the current container.
Definition: tree.c:136
A &#39;Window&#39; is a type which contains an xcb_window_t and all the related information (hints like _NET_...
Definition: data.h:313
enum Con::@18 type
xcb_window_t root
Definition: main.c:55
char * startup_workspace_for_window(i3Window *cwindow, xcb_get_property_reply_t *startup_id_reply)
Checks if the given window belongs to a startup notification by checking if the _NET_STARTUP_ID prope...
Definition: startup.c:348
struct Rect geometry
the geometry this window requested when getting mapped
Definition: data.h:496
bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom)
Definition: xcb.c:161
#define XCB_ATOM_WM_CLASS
Definition: xcb_compat.h:41
void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie, bool needs_to_be_mapped)
Do some sanity checks and then reparent the window.
Definition: manage.c:111
Con * con_by_window_id(xcb_window_t window)
Returns the container with the given client window ID or NULL if no such container exists...
Definition: con.c:452
void ipc_send_event(const char *event, uint32_t message_type, const char *payload)
Sends the specified event to all IPC clients which are currently connected and subscribed to this kin...
Definition: ipc.c:75
xcb_window_t leader
Holds the xcb_window_t (just an ID) for the leader window (logical parent for toolwindows and similar...
Definition: data.h:318
int sasprintf(char **strp, const char *fmt,...)
Safe-wrapper around asprintf which exits if it returns -1 (meaning that there is no more memory avail...
#define XCB_ATOM_WM_TRANSIENT_FOR
Definition: xcb_compat.h:39
void window_update_name(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt)
Updates the name by using _NET_WM_NAME (encoded in UTF-8) for the given window.
Definition: window.c:56
void * smalloc(size_t size)
Safe-wrapper around malloc which exits if malloc returns NULL (meaning that there is no more memory a...
uint16_t get_visual_depth(xcb_visualid_t visual_id)
Get depth of visual specified by visualid.
Definition: xcb.c:211
enum Match::@15 insert_where
xcb_window_t id
Definition: data.h:314
void con_focus(Con *con)
Sets input focus to the given container.
Definition: con.c:212
bool restart_mode
Definition: data.h:410
bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom)
Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW) ...
Definition: x.c:243
#define TAILQ_FIRST(head)
Definition: queue.h:324
#define GET_PROPERTY(atom, len)
Con * focused
Definition: tree.c:15
An Output is a physical output on your graphics driver.
Definition: data.h:282
uint16_t depth
Depth of the window.
Definition: data.h:360
void manage_existing_windows(xcb_window_t root)
Go through all existing windows (if the window manager is restarted) and manage them.
Definition: manage.c:21
Output * get_output_containing(int x, int y)
Returns the active (!) output which contains the coordinates x, y or NULL if there is no output which...
Definition: randr.c:80
xcb_window_t frame
Definition: data.h:473
#define TAILQ_FOREACH(var, head, field)
Definition: queue.h:335
void window_update_hints(i3Window *win, xcb_get_property_reply_t *prop)
Updates the WM_HINTS (we only care about the input focus handling part).
Definition: window.c:231
void window_update_transient_for(i3Window *win, xcb_get_property_reply_t *prop)
Updates the TRANSIENT_FOR (logical parent window).
Definition: window.c:149
char * workspace
Definition: data.h:446
uint32_t y
Definition: data.h:31
Con * workspace_get(const char *num, bool *created)
Returns a pointer to the workspace with the given number (starting at 0), creating the workspace if n...
Definition: workspace.c:47
void window_update_name_legacy(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt)
Updates the name by using WM_NAME (encoded in COMPOUND_TEXT).
Definition: window.c:88
enum Window::@11 dock
Whether the window says it is a dock window.
struct reservedpx reserved
Pixels the window reserves.
Definition: data.h:357
char * name
Definition: data.h:498
struct Con * parent
Definition: data.h:490
uint32_t x
Definition: data.h:108
void x_set_name(Con *con, const char *name)
Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways) of the given name...
Definition: x.c:1054
Con * con_get_output(Con *con)
Gets the output container (first container with CT_OUTPUT in hierarchy) this node is on...
Definition: con.c:294
void floating_enable(Con *con, bool automatic)
Enables floating mode for the given container by detaching it from its parent, creating a new contain...
Definition: floating.c:105
void window_update_class(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt)
Updates the WM_CLASS (consisting of the class and instance) for the given window. ...
Definition: window.c:19
xcb_window_t transient_for
Definition: data.h:319
void tree_render(void)
Renders the tree, that is rendering all outputs using render_con() and pushing the changes to X11 usi...
Definition: tree.c:501
enum Assignment::@16 type
type of this assignment:
Con * con
Pointer to the Con which represents this output.
Definition: data.h:300
#define LOG(fmt,...)
Definition: libi3.h:76
uint32_t height
Definition: data.h:111
#define TAILQ_INSERT_AFTER(head, listelm, elm, field)
Definition: queue.h:370
Con * con_get_fullscreen_con(Con *con, int fullscreen_mode)
Returns the first fullscreen node below this node.
Definition: con.c:356
void run_assignments(i3Window *window)
Checks the list of assignments for the given window and runs all matching ones (unless they have alre...
Definition: assignments.c:19
uint32_t top
Definition: data.h:122
enum Config::@4 popup_during_fullscreen
What should happen when a new popup is opened during fullscreen mode.
#define CHILD_EVENT_MASK
The XCB_CW_EVENT_MASK for the child (= real window)
Definition: xcb.h:34
void dump_node(yajl_gen gen, struct Con *con, bool inplace_restart)
Definition: ipc.c:150
bool needs_take_focus
Whether the application needs to receive WM_TAKE_FOCUS.
Definition: data.h:344
#define XCB_ATOM_WM_NAME
Definition: xcb_compat.h:40
uint32_t width
Definition: data.h:110
#define ystr(str)
Definition: commands.c:20
unsigned int ylength
Definition: yajl_utils.h:28