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00001 /* 00002 * vim:ts=4:sw=4:expandtab 00003 */ 00004 00005 #include "all.h" 00006 00007 /* Stores the X11 window ID of the currently focused window */ 00008 xcb_window_t focused_id = XCB_NONE; 00009 00010 /* 00011 * Describes the X11 state we may modify (map state, position, window stack). 00012 * There is one entry per container. The state represents the current situation 00013 * as X11 sees it (with the exception of the order in the state_head CIRCLEQ, 00014 * which represents the order that will be pushed to X11, while old_state_head 00015 * represents the current order). It will be updated in x_push_changes(). 00016 * 00017 */ 00018 typedef struct con_state { 00019 xcb_window_t id; 00020 bool mapped; 00021 bool unmap_now; 00022 bool child_mapped; 00023 00024 /* For reparenting, we have a flag (need_reparent) and the X ID of the old 00025 * frame this window was in. The latter is necessary because we need to 00026 * ignore UnmapNotify events (by changing the window event mask). */ 00027 bool need_reparent; 00028 xcb_window_t old_frame; 00029 00030 Rect rect; 00031 Rect window_rect; 00032 00033 bool initial; 00034 00035 char *name; 00036 00037 CIRCLEQ_ENTRY(con_state) state; 00038 CIRCLEQ_ENTRY(con_state) old_state; 00039 } con_state; 00040 00041 CIRCLEQ_HEAD(state_head, con_state) state_head = 00042 CIRCLEQ_HEAD_INITIALIZER(state_head); 00043 00044 CIRCLEQ_HEAD(old_state_head, con_state) old_state_head = 00045 CIRCLEQ_HEAD_INITIALIZER(old_state_head); 00046 00047 /* 00048 * Returns the container state for the given frame. This function always 00049 * returns a container state (otherwise, there is a bug in the code and the 00050 * container state of a container for which x_con_init() was not called was 00051 * requested). 00052 * 00053 */ 00054 static con_state *state_for_frame(xcb_window_t window) { 00055 con_state *state; 00056 CIRCLEQ_FOREACH(state, &state_head, state) 00057 if (state->id == window) 00058 return state; 00059 00060 /* TODO: better error handling? */ 00061 ELOG("No state found\n"); 00062 assert(false); 00063 return NULL; 00064 } 00065 00066 /* 00067 * Initializes the X11 part for the given container. Called exactly once for 00068 * every container from con_new(). 00069 * 00070 */ 00071 void x_con_init(Con *con) { 00072 /* TODO: maybe create the window when rendering first? we could then even 00073 * get the initial geometry right */ 00074 00075 uint32_t mask = 0; 00076 uint32_t values[2]; 00077 00078 /* our own frames should not be managed */ 00079 mask |= XCB_CW_OVERRIDE_REDIRECT; 00080 values[0] = 1; 00081 00082 /* see include/xcb.h for the FRAME_EVENT_MASK */ 00083 mask |= XCB_CW_EVENT_MASK; 00084 values[1] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW; 00085 00086 Rect dims = { -15, -15, 10, 10 }; 00087 con->frame = create_window(conn, dims, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values); 00088 00089 struct con_state *state = scalloc(sizeof(struct con_state)); 00090 state->id = con->frame; 00091 state->mapped = false; 00092 state->initial = true; 00093 CIRCLEQ_INSERT_HEAD(&state_head, state, state); 00094 CIRCLEQ_INSERT_HEAD(&old_state_head, state, old_state); 00095 DLOG("adding new state for window id 0x%08x\n", state->id); 00096 } 00097 00098 /* 00099 * Re-initializes the associated X window state for this container. You have 00100 * to call this when you assign a client to an empty container to ensure that 00101 * its state gets updated correctly. 00102 * 00103 */ 00104 void x_reinit(Con *con) { 00105 struct con_state *state; 00106 00107 if ((state = state_for_frame(con->frame)) == NULL) { 00108 ELOG("window state not found\n"); 00109 return; 00110 } 00111 00112 DLOG("resetting state %p to initial\n", state); 00113 state->initial = true; 00114 state->child_mapped = false; 00115 memset(&(state->window_rect), 0, sizeof(Rect)); 00116 } 00117 00118 /* 00119 * Reparents the child window of the given container (necessary for sticky 00120 * containers). The reparenting happens in the next call of x_push_changes(). 00121 * 00122 */ 00123 void x_reparent_child(Con *con, Con *old) { 00124 struct con_state *state; 00125 if ((state = state_for_frame(con->frame)) == NULL) { 00126 ELOG("window state for con not found\n"); 00127 return; 00128 } 00129 00130 state->need_reparent = true; 00131 state->old_frame = old->frame; 00132 } 00133 00134 /* 00135 * Moves a child window from Container src to Container dest. 00136 * 00137 */ 00138 void x_move_win(Con *src, Con *dest) { 00139 struct con_state *state_src, *state_dest; 00140 00141 if ((state_src = state_for_frame(src->frame)) == NULL) { 00142 ELOG("window state for src not found\n"); 00143 return; 00144 } 00145 00146 if ((state_dest = state_for_frame(dest->frame)) == NULL) { 00147 ELOG("window state for dest not found\n"); 00148 return; 00149 } 00150 00151 Rect zero = { 0, 0, 0, 0 }; 00152 if (memcmp(&(state_dest->window_rect), &(zero), sizeof(Rect)) == 0) { 00153 memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect)); 00154 DLOG("COPYING RECT\n"); 00155 } 00156 } 00157 00158 /* 00159 * Kills the window decoration associated with the given container. 00160 * 00161 */ 00162 void x_con_kill(Con *con) { 00163 con_state *state; 00164 00165 xcb_destroy_window(conn, con->frame); 00166 xcb_free_pixmap(conn, con->pixmap); 00167 xcb_free_gc(conn, con->pm_gc); 00168 state = state_for_frame(con->frame); 00169 CIRCLEQ_REMOVE(&state_head, state, state); 00170 CIRCLEQ_REMOVE(&old_state_head, state, old_state); 00171 FREE(state->name); 00172 free(state); 00173 00174 /* Invalidate focused_id to correctly focus new windows with the same ID */ 00175 focused_id = XCB_NONE; 00176 } 00177 00178 /* 00179 * Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW) 00180 * 00181 */ 00182 bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom) { 00183 xcb_get_property_cookie_t cookie; 00184 xcb_icccm_get_wm_protocols_reply_t protocols; 00185 bool result = false; 00186 00187 cookie = xcb_icccm_get_wm_protocols(conn, window, A_WM_PROTOCOLS); 00188 if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &protocols, NULL) != 1) 00189 return false; 00190 00191 /* Check if the client’s protocols have the requested atom set */ 00192 for (uint32_t i = 0; i < protocols.atoms_len; i++) 00193 if (protocols.atoms[i] == atom) 00194 result = true; 00195 00196 xcb_icccm_get_wm_protocols_reply_wipe(&protocols); 00197 00198 return result; 00199 } 00200 00201 /* 00202 * Kills the given X11 window using WM_DELETE_WINDOW (if supported). 00203 * 00204 */ 00205 void x_window_kill(xcb_window_t window, kill_window_t kill_window) { 00206 /* if this window does not support WM_DELETE_WINDOW, we kill it the hard way */ 00207 if (!window_supports_protocol(window, A_WM_DELETE_WINDOW)) { 00208 if (kill_window == KILL_WINDOW) { 00209 LOG("Killing specific window 0x%08x\n", window); 00210 xcb_destroy_window(conn, window); 00211 } else { 00212 LOG("Killing the X11 client which owns window 0x%08x\n", window); 00213 xcb_kill_client(conn, window); 00214 } 00215 return; 00216 } 00217 00218 /* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes. 00219 * In order to properly initialize these bytes, we allocate 32 bytes even 00220 * though we only need less for an xcb_configure_notify_event_t */ 00221 void *event = scalloc(32); 00222 xcb_client_message_event_t *ev = event; 00223 00224 ev->response_type = XCB_CLIENT_MESSAGE; 00225 ev->window = window; 00226 ev->type = A_WM_PROTOCOLS; 00227 ev->format = 32; 00228 ev->data.data32[0] = A_WM_DELETE_WINDOW; 00229 ev->data.data32[1] = XCB_CURRENT_TIME; 00230 00231 LOG("Sending WM_DELETE to the client\n"); 00232 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)ev); 00233 xcb_flush(conn); 00234 free(event); 00235 } 00236 00237 /* 00238 * Draws the decoration of the given container onto its parent. 00239 * 00240 */ 00241 void x_draw_decoration(Con *con) { 00242 Con *parent = con->parent; 00243 /* This code needs to run for: 00244 * • leaf containers 00245 * • non-leaf containers which are in a stacked/tabbed container 00246 * 00247 * It does not need to run for: 00248 * • floating containers (they don’t have a decoration) 00249 */ 00250 if ((!con_is_leaf(con) && 00251 parent->layout != L_STACKED && 00252 parent->layout != L_TABBED) || 00253 con->type == CT_FLOATING_CON) 00254 return; 00255 DLOG("decoration should be rendered for con %p\n", con); 00256 00257 /* Skip containers whose height is 0 (for example empty dockareas) */ 00258 if (con->rect.height == 0) { 00259 DLOG("height == 0, not rendering\n"); 00260 return; 00261 } 00262 00263 /* Skip containers whose pixmap has not yet been created (can happen when 00264 * decoration rendering happens recursively for a window for which 00265 * x_push_node() was not yet called) */ 00266 if (con->pixmap == XCB_NONE) { 00267 DLOG("pixmap not yet created, not rendering\n"); 00268 return; 00269 } 00270 00271 /* 1: build deco_params and compare with cache */ 00272 struct deco_render_params *p = scalloc(sizeof(struct deco_render_params)); 00273 00274 /* find out which colors to use */ 00275 if (con->urgent) 00276 p->color = &config.client.urgent; 00277 else if (con == focused) 00278 p->color = &config.client.focused; 00279 else if (con == TAILQ_FIRST(&(parent->focus_head))) 00280 p->color = &config.client.focused_inactive; 00281 else 00282 p->color = &config.client.unfocused; 00283 00284 p->border_style = con_border_style(con); 00285 00286 Rect *r = &(con->rect); 00287 Rect *w = &(con->window_rect); 00288 p->con_rect = (struct width_height){ r->width, r->height }; 00289 p->con_window_rect = (struct width_height){ w->width, w->height }; 00290 p->con_deco_rect = con->deco_rect; 00291 p->background = config.client.background; 00292 p->con_is_leaf = con_is_leaf(con); 00293 p->font = config.font.id; 00294 00295 if (con->deco_render_params != NULL && 00296 (con->window == NULL || !con->window->name_x_changed) && 00297 !parent->pixmap_recreated && 00298 !con->pixmap_recreated && 00299 memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) { 00300 DLOG("CACHE HIT, copying existing pixmaps\n"); 00301 free(p); 00302 goto copy_pixmaps; 00303 } 00304 00305 DLOG("CACHE MISS\n"); 00306 Con *next = con; 00307 while ((next = TAILQ_NEXT(next, nodes))) { 00308 DLOG("Also invalidating cache of %p\n", next); 00309 FREE(next->deco_render_params); 00310 } 00311 00312 FREE(con->deco_render_params); 00313 con->deco_render_params = p; 00314 00315 if (con->window != NULL && con->window->name_x_changed) 00316 con->window->name_x_changed = false; 00317 00318 parent->pixmap_recreated = false; 00319 con->pixmap_recreated = false; 00320 00321 /* 2: draw the client.background, but only for the parts around the client_rect */ 00322 if (con->window != NULL) { 00323 xcb_rectangle_t background[] = { 00324 /* top area */ 00325 { 0, 0, r->width, w->y }, 00326 /* bottom area */ 00327 { 0, (w->y + w->height), r->width, r->height - (w->y + w->height) }, 00328 /* left area */ 00329 { 0, 0, w->x, r->height }, 00330 /* right area */ 00331 { w->x + w->width, 0, r->width - (w->x + w->width), r->height } 00332 }; 00333 #if 0 00334 for (int i = 0; i < 4; i++) 00335 DLOG("rect is (%d, %d) with %d x %d\n", 00336 background[i].x, 00337 background[i].y, 00338 background[i].width, 00339 background[i].height 00340 ); 00341 #endif 00342 00343 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, config.client.background); 00344 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, sizeof(background) / sizeof(xcb_rectangle_t), background); 00345 } 00346 00347 /* 3: draw a rectangle in border color around the client */ 00348 if (p->border_style != BS_NONE && p->con_is_leaf) { 00349 Rect br = con_border_style_rect(con); 00350 #if 0 00351 DLOG("con->rect spans %d x %d\n", con->rect.width, con->rect.height); 00352 DLOG("border_rect spans (%d, %d) with %d x %d\n", br.x, br.y, br.width, br.height); 00353 DLOG("window_rect spans (%d, %d) with %d x %d\n", con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height); 00354 #endif 00355 00356 /* These rectangles represents the border around the child window 00357 * (left, bottom and right part). We don’t just fill the whole 00358 * rectangle because some childs are not freely resizable and we want 00359 * their background color to "shine through". */ 00360 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, p->color->background); 00361 xcb_rectangle_t borders[] = { 00362 { 0, 0, br.x, r->height }, 00363 { 0, r->height + br.height + br.y, r->width, r->height }, 00364 { r->width + br.width + br.x, 0, r->width, r->height } 00365 }; 00366 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 3, borders); 00367 /* 1pixel border needs an additional line at the top */ 00368 if (p->border_style == BS_1PIXEL) { 00369 xcb_rectangle_t topline = { br.x, 0, con->rect.width + br.width + br.x, br.y }; 00370 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 1, &topline); 00371 } 00372 } 00373 00374 /* if this is a borderless/1pixel window, we don’t * need to render the 00375 * decoration. */ 00376 if (p->border_style != BS_NORMAL) { 00377 DLOG("border style not BS_NORMAL, aborting rendering of decoration\n"); 00378 goto copy_pixmaps; 00379 } 00380 00381 /* 4: paint the bar */ 00382 xcb_change_gc_single(conn, parent->pm_gc, XCB_GC_FOREGROUND, p->color->background); 00383 xcb_rectangle_t drect = { con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height }; 00384 xcb_poly_fill_rectangle(conn, parent->pixmap, parent->pm_gc, 1, &drect); 00385 00386 /* 5: draw two unconnected lines in border color */ 00387 xcb_change_gc_single(conn, parent->pm_gc, XCB_GC_FOREGROUND, p->color->border); 00388 Rect *dr = &(con->deco_rect); 00389 xcb_segment_t segments[] = { 00390 { dr->x, dr->y, 00391 dr->x + dr->width, dr->y }, 00392 00393 { dr->x, dr->y + dr->height - 1, 00394 dr->x + dr->width, dr->y + dr->height - 1 } 00395 }; 00396 xcb_poly_segment(conn, parent->pixmap, parent->pm_gc, 2, segments); 00397 00398 /* 6: draw the title */ 00399 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT; 00400 uint32_t values[] = { p->color->text, p->color->background, config.font.id }; 00401 xcb_change_gc(conn, parent->pm_gc, mask, values); 00402 int text_offset_y = config.font.height + (con->deco_rect.height - config.font.height) / 2 - 1; 00403 00404 struct Window *win = con->window; 00405 if (win == NULL || win->name_x == NULL) { 00406 /* this is a non-leaf container, we need to make up a good description */ 00407 // TODO: use a good description instead of just "another container" 00408 xcb_image_text_8( 00409 conn, 00410 strlen("another container"), 00411 parent->pixmap, 00412 parent->pm_gc, 00413 con->deco_rect.x + 2, 00414 con->deco_rect.y + text_offset_y, 00415 "another container" 00416 ); 00417 00418 goto copy_pixmaps; 00419 } 00420 00421 int indent_level = 0, 00422 indent_mult = 0; 00423 Con *il_parent = parent; 00424 if (il_parent->layout != L_STACKED) { 00425 while (1) { 00426 DLOG("il_parent = %p, layout = %d\n", il_parent, il_parent->layout); 00427 if (il_parent->layout == L_STACKED) 00428 indent_level++; 00429 if (il_parent->type == CT_WORKSPACE || il_parent->type == CT_DOCKAREA || il_parent->type == CT_OUTPUT) 00430 break; 00431 il_parent = il_parent->parent; 00432 indent_mult++; 00433 } 00434 } 00435 DLOG("indent_level = %d, indent_mult = %d\n", indent_level, indent_mult); 00436 int indent_px = (indent_level * 5) * indent_mult; 00437 00438 if (win->uses_net_wm_name) 00439 xcb_image_text_16( 00440 conn, 00441 win->name_len, 00442 parent->pixmap, 00443 parent->pm_gc, 00444 con->deco_rect.x + 2 + indent_px, 00445 con->deco_rect.y + text_offset_y, 00446 (xcb_char2b_t*)win->name_x 00447 ); 00448 else 00449 xcb_image_text_8( 00450 conn, 00451 win->name_len, 00452 parent->pixmap, 00453 parent->pm_gc, 00454 con->deco_rect.x + 2 + indent_px, 00455 con->deco_rect.y + text_offset_y, 00456 win->name_x 00457 ); 00458 00459 copy_pixmaps: 00460 xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height); 00461 } 00462 00463 /* 00464 * Recursively calls x_draw_decoration. This cannot be done in x_push_node 00465 * because x_push_node uses focus order to recurse (see the comment above) 00466 * while drawing the decoration needs to happen in the actual order. 00467 * 00468 */ 00469 void x_deco_recurse(Con *con) { 00470 Con *current; 00471 bool leaf = TAILQ_EMPTY(&(con->nodes_head)) && 00472 TAILQ_EMPTY(&(con->floating_head)); 00473 con_state *state = state_for_frame(con->frame); 00474 00475 if (!leaf) { 00476 TAILQ_FOREACH(current, &(con->nodes_head), nodes) 00477 x_deco_recurse(current); 00478 00479 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) 00480 x_deco_recurse(current); 00481 00482 if (state->mapped) 00483 xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height); 00484 } 00485 00486 if ((con->type != CT_ROOT && con->type != CT_OUTPUT) && 00487 con->mapped) 00488 x_draw_decoration(con); 00489 } 00490 00491 /* 00492 * This function pushes the properties of each node of the layout tree to 00493 * X11 if they have changed (like the map state, position of the window, …). 00494 * It recursively traverses all children of the given node. 00495 * 00496 */ 00497 void x_push_node(Con *con) { 00498 Con *current; 00499 con_state *state; 00500 Rect rect = con->rect; 00501 00502 //DLOG("Pushing changes for node %p / %s\n", con, con->name); 00503 state = state_for_frame(con->frame); 00504 00505 if (state->name != NULL) { 00506 DLOG("pushing name %s for con %p\n", state->name, con); 00507 00508 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame, 00509 A_WM_NAME, A_STRING, 8, strlen(state->name), state->name); 00510 FREE(state->name); 00511 } 00512 00513 if (con->window == NULL) { 00514 /* Calculate the height of all window decorations which will be drawn on to 00515 * this frame. */ 00516 uint32_t max_y = 0, max_height = 0; 00517 TAILQ_FOREACH(current, &(con->nodes_head), nodes) { 00518 Rect *dr = &(current->deco_rect); 00519 if (dr->y >= max_y && dr->height >= max_height) { 00520 max_y = dr->y; 00521 max_height = dr->height; 00522 } 00523 } 00524 rect.height = max_y + max_height; 00525 if (rect.height == 0) { 00526 DLOG("Unmapping container %p because it does not contain anything.\n", con); 00527 con->mapped = false; 00528 } 00529 } 00530 00531 /* reparent the child window (when the window was moved due to a sticky 00532 * container) */ 00533 if (state->need_reparent && con->window != NULL) { 00534 DLOG("Reparenting child window\n"); 00535 00536 /* Temporarily set the event masks to XCB_NONE so that we won’t get 00537 * UnmapNotify events (otherwise the handler would close the container). 00538 * These events are generated automatically when reparenting. */ 00539 uint32_t values[] = { XCB_NONE }; 00540 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values); 00541 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values); 00542 00543 xcb_reparent_window(conn, con->window->id, con->frame, 0, 0); 00544 00545 values[0] = FRAME_EVENT_MASK; 00546 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values); 00547 values[0] = CHILD_EVENT_MASK; 00548 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values); 00549 00550 state->old_frame = XCB_NONE; 00551 state->need_reparent = false; 00552 00553 con->ignore_unmap++; 00554 DLOG("ignore_unmap for reparenting of con %p (win 0x%08x) is now %d\n", 00555 con, con->window->id, con->ignore_unmap); 00556 } 00557 00558 bool fake_notify = false; 00559 /* Set new position if rect changed (and if height > 0) */ 00560 if (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0 && 00561 rect.height > 0) { 00562 /* We first create the new pixmap, then render to it, set it as the 00563 * background and only afterwards change the window size. This reduces 00564 * flickering. */ 00565 00566 /* As the pixmap only depends on the size and not on the position, it 00567 * is enough to check if width/height have changed. Also, we don’t 00568 * create a pixmap at all when the window is actually not visible 00569 * (height == 0). */ 00570 if ((state->rect.width != rect.width || 00571 state->rect.height != rect.height)) { 00572 DLOG("CACHE: creating new pixmap for con %p (old: %d x %d, new: %d x %d)\n", 00573 con, state->rect.width, state->rect.height, 00574 rect.width, rect.height); 00575 if (con->pixmap == 0) { 00576 con->pixmap = xcb_generate_id(conn); 00577 con->pm_gc = xcb_generate_id(conn); 00578 } else { 00579 xcb_free_pixmap(conn, con->pixmap); 00580 xcb_free_gc(conn, con->pm_gc); 00581 } 00582 xcb_create_pixmap(conn, root_depth, con->pixmap, con->frame, rect.width, rect.height); 00583 /* For the graphics context, we disable GraphicsExposure events. 00584 * Those will be sent when a CopyArea request cannot be fulfilled 00585 * properly due to parts of the source being unmapped or otherwise 00586 * unavailable. Since we always copy from pixmaps to windows, this 00587 * is not a concern for us. */ 00588 uint32_t values[] = { 0 }; 00589 xcb_create_gc(conn, con->pm_gc, con->pixmap, XCB_GC_GRAPHICS_EXPOSURES, values); 00590 00591 con->pixmap_recreated = true; 00592 00593 /* Don’t render the decoration for windows inside a stack which are 00594 * not visible right now */ 00595 if (!con->parent || 00596 con->parent->layout != L_STACKED || 00597 TAILQ_FIRST(&(con->parent->focus_head)) == con) 00598 /* Render the decoration now to make the correct decoration visible 00599 * from the very first moment. Later calls will be cached, so this 00600 * doesn’t hurt performance. */ 00601 x_deco_recurse(con); 00602 } 00603 00604 DLOG("setting rect (%d, %d, %d, %d)\n", rect.x, rect.y, rect.width, rect.height); 00605 /* flush to ensure that the following commands are sent in a single 00606 * buffer and will be processed directly afterwards (the contents of a 00607 * window get lost when resizing it, therefore we want to provide it as 00608 * fast as possible) */ 00609 xcb_flush(conn); 00610 xcb_set_window_rect(conn, con->frame, rect); 00611 if (con->pixmap != XCB_NONE) 00612 xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height); 00613 xcb_flush(conn); 00614 00615 memcpy(&(state->rect), &rect, sizeof(Rect)); 00616 fake_notify = true; 00617 } 00618 00619 /* dito, but for child windows */ 00620 if (con->window != NULL && 00621 memcmp(&(state->window_rect), &(con->window_rect), sizeof(Rect)) != 0) { 00622 DLOG("setting window rect (%d, %d, %d, %d)\n", 00623 con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height); 00624 xcb_set_window_rect(conn, con->window->id, con->window_rect); 00625 memcpy(&(state->window_rect), &(con->window_rect), sizeof(Rect)); 00626 fake_notify = true; 00627 } 00628 00629 /* Map if map state changed, also ensure that the child window 00630 * is changed if we are mapped *and* in initial state (meaning the 00631 * container was empty before, but now got a child). Unmaps are handled in 00632 * x_push_node_unmaps(). */ 00633 if ((state->mapped != con->mapped || (con->mapped && state->initial)) && 00634 con->mapped) { 00635 xcb_void_cookie_t cookie; 00636 00637 if (con->window != NULL) { 00638 /* Set WM_STATE_NORMAL because GTK applications don’t want to 00639 * drag & drop if we don’t. Also, xprop(1) needs it. */ 00640 long data[] = { XCB_ICCCM_WM_STATE_NORMAL, XCB_NONE }; 00641 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id, 00642 A_WM_STATE, A_WM_STATE, 32, 2, data); 00643 } 00644 00645 uint32_t values[1]; 00646 if (!state->child_mapped && con->window != NULL) { 00647 cookie = xcb_map_window(conn, con->window->id); 00648 00649 /* We are interested in EnterNotifys as soon as the window is 00650 * mapped */ 00651 values[0] = CHILD_EVENT_MASK; 00652 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values); 00653 DLOG("mapping child window (serial %d)\n", cookie.sequence); 00654 state->child_mapped = true; 00655 } 00656 00657 cookie = xcb_map_window(conn, con->frame); 00658 00659 values[0] = FRAME_EVENT_MASK; 00660 xcb_change_window_attributes(conn, con->frame, XCB_CW_EVENT_MASK, values); 00661 00662 /* copy the pixmap contents to the frame window immediately after mapping */ 00663 if (con->pixmap != XCB_NONE) 00664 xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height); 00665 xcb_flush(conn); 00666 00667 DLOG("mapping container %08x (serial %d)\n", con->frame, cookie.sequence); 00668 state->mapped = con->mapped; 00669 } 00670 00671 state->unmap_now = (state->mapped != con->mapped) && !con->mapped; 00672 00673 if (fake_notify) { 00674 DLOG("Sending fake configure notify\n"); 00675 fake_absolute_configure_notify(con); 00676 } 00677 00678 /* Handle all children and floating windows of this node. We recurse 00679 * in focus order to display the focused client in a stack first when 00680 * switching workspaces (reduces flickering). */ 00681 TAILQ_FOREACH(current, &(con->focus_head), focused) 00682 x_push_node(current); 00683 } 00684 00685 /* 00686 * Same idea as in x_push_node(), but this function only unmaps windows. It is 00687 * necessary to split this up to handle new fullscreen clients properly: The 00688 * new window needs to be mapped and focus needs to be set *before* the 00689 * underlying windows are unmapped. Otherwise, focus will revert to the 00690 * PointerRoot and will then be set to the new window, generating unnecessary 00691 * FocusIn/FocusOut events. 00692 * 00693 */ 00694 static void x_push_node_unmaps(Con *con) { 00695 Con *current; 00696 con_state *state; 00697 00698 //DLOG("Pushing changes (with unmaps) for node %p / %s\n", con, con->name); 00699 state = state_for_frame(con->frame); 00700 00701 /* map/unmap if map state changed, also ensure that the child window 00702 * is changed if we are mapped *and* in initial state (meaning the 00703 * container was empty before, but now got a child) */ 00704 if (state->unmap_now) { 00705 xcb_void_cookie_t cookie; 00706 if (con->window != NULL) { 00707 /* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */ 00708 long data[] = { XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE }; 00709 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id, 00710 A_WM_STATE, A_WM_STATE, 32, 2, data); 00711 } 00712 00713 cookie = xcb_unmap_window(conn, con->frame); 00714 DLOG("unmapping container (serial %d)\n", cookie.sequence); 00715 /* we need to increase ignore_unmap for this container (if it 00716 * contains a window) and for every window "under" this one which 00717 * contains a window */ 00718 if (con->window != NULL) { 00719 con->ignore_unmap++; 00720 DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame, con->ignore_unmap); 00721 } 00722 state->mapped = con->mapped; 00723 } 00724 00725 /* handle all children and floating windows of this node */ 00726 TAILQ_FOREACH(current, &(con->nodes_head), nodes) 00727 x_push_node_unmaps(current); 00728 00729 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) 00730 x_push_node_unmaps(current); 00731 } 00732 00733 /* 00734 * Pushes all changes (state of each node, see x_push_node() and the window 00735 * stack) to X11. 00736 * 00737 * NOTE: We need to push the stack first so that the windows have the correct 00738 * stacking order. This is relevant for workspace switching where we map the 00739 * windows because mapping may generate EnterNotify events. When they are 00740 * generated in the wrong order, this will cause focus problems when switching 00741 * workspaces. 00742 * 00743 */ 00744 void x_push_changes(Con *con) { 00745 con_state *state; 00746 00747 DLOG("-- PUSHING WINDOW STACK --\n"); 00748 //DLOG("Disabling EnterNotify\n"); 00749 uint32_t values[1] = { XCB_NONE }; 00750 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) { 00751 if (state->mapped) 00752 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values); 00753 } 00754 //DLOG("Done, EnterNotify disabled\n"); 00755 bool order_changed = false; 00756 /* X11 correctly represents the stack if we push it from bottom to top */ 00757 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) { 00758 //DLOG("stack: 0x%08x\n", state->id); 00759 con_state *prev = CIRCLEQ_PREV(state, state); 00760 con_state *old_prev = CIRCLEQ_PREV(state, old_state); 00761 if (prev != old_prev) 00762 order_changed = true; 00763 if ((state->initial || order_changed) && prev != CIRCLEQ_END(&state_head)) { 00764 DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id); 00765 uint32_t mask = 0; 00766 mask |= XCB_CONFIG_WINDOW_SIBLING; 00767 mask |= XCB_CONFIG_WINDOW_STACK_MODE; 00768 uint32_t values[] = {state->id, XCB_STACK_MODE_ABOVE}; 00769 00770 xcb_configure_window(conn, prev->id, mask, values); 00771 } 00772 state->initial = false; 00773 } 00774 //DLOG("Re-enabling EnterNotify\n"); 00775 values[0] = FRAME_EVENT_MASK; 00776 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) { 00777 if (state->mapped) 00778 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values); 00779 } 00780 //DLOG("Done, EnterNotify re-enabled\n"); 00781 00782 DLOG("\n\n PUSHING CHANGES\n\n"); 00783 x_push_node(con); 00784 x_deco_recurse(con); 00785 00786 xcb_window_t to_focus = focused->frame; 00787 if (focused->window != NULL) 00788 to_focus = focused->window->id; 00789 00790 DLOG("focused_id = 0x%08x, to_focus = 0x%08x\n", focused_id, to_focus); 00791 if (focused_id != to_focus) { 00792 if (!focused->mapped) { 00793 DLOG("Not updating focus (to %p / %s), focused window is not mapped.\n", focused, focused->name); 00794 /* Invalidate focused_id to correctly focus new windows with the same ID */ 00795 focused_id = XCB_NONE; 00796 } else { 00797 DLOG("Updating focus (focused: %p / %s)\n", focused, focused->name); 00798 /* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get 00799 * no focus change events for our own focus changes. We only want 00800 * these generated by the clients. */ 00801 if (focused->window != NULL) { 00802 values[0] = CHILD_EVENT_MASK & ~(XCB_EVENT_MASK_FOCUS_CHANGE); 00803 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values); 00804 } 00805 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, to_focus, XCB_CURRENT_TIME); 00806 if (focused->window != NULL) { 00807 values[0] = CHILD_EVENT_MASK; 00808 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values); 00809 } 00810 00811 if (focused->window != NULL && 00812 focused->window->needs_take_focus) { 00813 send_take_focus(to_focus); 00814 } 00815 00816 ewmh_update_active_window(to_focus); 00817 focused_id = to_focus; 00818 } 00819 } 00820 00821 if (focused_id == XCB_NONE) { 00822 DLOG("Still no window focused, better set focus to the root window\n"); 00823 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME); 00824 focused_id = root; 00825 } 00826 00827 xcb_flush(conn); 00828 DLOG("\n\n ENDING CHANGES\n\n"); 00829 00830 /* Disable EnterWindow events for windows which will be unmapped in 00831 * x_push_node_unmaps() now. Unmapping windows happens when switching 00832 * workspaces. We want to avoid getting EnterNotifies during that phase 00833 * because they would screw up our focus. One of these cases is having a 00834 * stack with two windows. If the first window is focused and gets 00835 * unmapped, the second one appears under the cursor and therefore gets an 00836 * EnterNotify event. */ 00837 values[0] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW; 00838 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) { 00839 if (!state->unmap_now) 00840 continue; 00841 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values); 00842 } 00843 00844 /* Push all pending unmaps */ 00845 x_push_node_unmaps(con); 00846 00847 /* save the current stack as old stack */ 00848 CIRCLEQ_FOREACH(state, &state_head, state) { 00849 CIRCLEQ_REMOVE(&old_state_head, state, old_state); 00850 CIRCLEQ_INSERT_TAIL(&old_state_head, state, old_state); 00851 } 00852 //CIRCLEQ_FOREACH(state, &old_state_head, old_state) { 00853 // DLOG("old stack: 0x%08x\n", state->id); 00854 //} 00855 00856 xcb_flush(conn); 00857 } 00858 00859 /* 00860 * Raises the specified container in the internal stack of X windows. The 00861 * next call to x_push_changes() will make the change visible in X11. 00862 * 00863 */ 00864 void x_raise_con(Con *con) { 00865 con_state *state; 00866 state = state_for_frame(con->frame); 00867 //DLOG("raising in new stack: %p / %s / %s / xid %08x\n", con, con->name, con->window ? con->window->name_json : "", state->id); 00868 00869 CIRCLEQ_REMOVE(&state_head, state, state); 00870 CIRCLEQ_INSERT_HEAD(&state_head, state, state); 00871 } 00872 00873 /* 00874 * Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways) 00875 * of the given name. Used for properly tagging the windows for easily spotting 00876 * i3 windows in xwininfo -root -all. 00877 * 00878 */ 00879 void x_set_name(Con *con, const char *name) { 00880 struct con_state *state; 00881 00882 if ((state = state_for_frame(con->frame)) == NULL) { 00883 ELOG("window state not found\n"); 00884 return; 00885 } 00886 00887 FREE(state->name); 00888 state->name = sstrdup(name); 00889 } 00890 00891 /* 00892 * Sets up i3 specific atoms (I3_SOCKET_PATH and I3_CONFIG_PATH) 00893 * 00894 */ 00895 void x_set_i3_atoms() { 00896 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_SOCKET_PATH, A_UTF8_STRING, 8, 00897 (current_socketpath == NULL ? 0 : strlen(current_socketpath)), 00898 current_socketpath); 00899 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_CONFIG_PATH, A_UTF8_STRING, 8, 00900 strlen(current_configpath), current_configpath); 00901 }