openbox/focus.c (raw)
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 |
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- focus.c for the Openbox window manager Copyright (c) 2006 Mikael Magnusson Copyright (c) 2003-2007 Dana Jansens This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. See the COPYING file for a copy of the GNU General Public License. */ #include "debug.h" #include "event.h" #include "openbox.h" #include "grab.h" #include "client.h" #include "config.h" #include "group.h" #include "focus_cycle.h" #include "screen.h" #include "keyboard.h" #include "focus.h" #include "stacking.h" #include "obt/prop.h" #include <X11/Xlib.h> #include <glib.h> #define FOCUS_INDICATOR_WIDTH 6 ObClient *focus_client = NULL; GList *focus_order = NULL; void focus_startup(gboolean reconfig) { if (reconfig) return; /* start with nothing focused */ focus_nothing(); } void focus_shutdown(gboolean reconfig) { if (reconfig) return; /* reset focus to root */ XSetInputFocus(obt_display, PointerRoot, RevertToNone, CurrentTime); } static void push_to_top(ObClient *client) { ObClient *p; /* if it is modal for a single window, then put that window at the top of the focus order first, so it will be right after ours. the same is done with stacking */ if (client->modal && (p = client_direct_parent(client))) push_to_top(p); focus_order = g_list_remove(focus_order, client); focus_order = g_list_prepend(focus_order, client); } void focus_set_client(ObClient *client) { Window active; ob_debug_type(OB_DEBUG_FOCUS, "focus_set_client 0x%lx", client ? client->window : 0); if (focus_client == client) return; /* uninstall the old colormap, and install the new one */ screen_install_colormap(focus_client, FALSE); screen_install_colormap(client, TRUE); focus_client = client; if (client != NULL) { /* move to the top of the list */ push_to_top(client); /* remove hiliting from the window when it gets focused */ client_hilite(client, FALSE); } /* set the NET_ACTIVE_WINDOW hint, but preserve it on shutdown */ if (ob_state() != OB_STATE_EXITING) { active = client ? client->window : None; OBT_PROP_SET32(obt_root(ob_screen), NET_ACTIVE_WINDOW, WINDOW, active); } } static ObClient* focus_fallback_target(gboolean allow_refocus, gboolean allow_pointer, gboolean allow_omnipresent, ObClient *old) { GList *it; ObClient *c; ob_debug_type(OB_DEBUG_FOCUS, "trying pointer stuff"); if (allow_pointer && config_focus_follow) if ((c = client_under_pointer()) && (allow_refocus || client_focus_target(c) != old) && (client_normal(c) && client_focus(c))) { ob_debug_type(OB_DEBUG_FOCUS, "found in pointer stuff"); return c; } ob_debug_type(OB_DEBUG_FOCUS, "trying the focus order"); for (it = focus_order; it; it = g_list_next(it)) { c = it->data; /* fallback focus to a window if: 1. it is on the current desktop. this ignores omnipresent windows, which are problematic in their own rite, unless they are specifically allowed 2. it is a valid auto-focus target 3. it is not shaded */ if ((allow_omnipresent || c->desktop == screen_desktop) && focus_valid_target(c, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE) && !c->shaded && (allow_refocus || client_focus_target(c) != old) && client_focus(c)) { ob_debug_type(OB_DEBUG_FOCUS, "found in focus order"); return c; } } ob_debug_type(OB_DEBUG_FOCUS, "trying a desktop window"); for (it = focus_order; it; it = g_list_next(it)) { c = it->data; /* fallback focus to a window if: 1. it is on the current desktop. this ignores omnipresent windows, which are problematic in their own rite. 2. it is a normal type window, don't fall back onto a dock or a splashscreen or a desktop window (save the desktop as a backup fallback though) */ if (focus_valid_target(c, TRUE, FALSE, FALSE, FALSE, TRUE, FALSE) && (allow_refocus || client_focus_target(c) != old) && client_focus(c)) { ob_debug_type(OB_DEBUG_FOCUS, "found a desktop window"); return c; } } return NULL; } ObClient* focus_fallback(gboolean allow_refocus, gboolean allow_pointer, gboolean allow_omnipresent, gboolean focus_lost) { ObClient *new; ObClient *old = focus_client; /* unfocus any focused clients.. they can be focused by Pointer events and such, and then when we try focus them, we won't get a FocusIn event at all for them. */ if (focus_lost) focus_nothing(); new = focus_fallback_target(allow_refocus, allow_pointer, allow_omnipresent, old); /* get what was really focused */ if (new) new = client_focus_target(new); return new; } void focus_nothing(void) { /* nothing is focused, update the colormap and _the root property_ */ focus_set_client(NULL); /* when nothing will be focused, send focus to the backup target */ XSetInputFocus(obt_display, screen_support_win, RevertToPointerRoot, event_curtime); } void focus_order_add_new(ObClient *c) { if (c->iconic) focus_order_to_top(c); else { g_assert(!g_list_find(focus_order, c)); /* if there are any iconic windows, put this above them in the order, but if there are not, then put it under the currently focused one */ if (focus_order && ((ObClient*)focus_order->data)->iconic) focus_order = g_list_insert(focus_order, c, 0); else focus_order = g_list_insert(focus_order, c, 1); } /* in the middle of cycling..? kill it. */ focus_cycle_stop(c); } void focus_order_remove(ObClient *c) { focus_order = g_list_remove(focus_order, c); /* in the middle of cycling..? kill it. */ focus_cycle_stop(c); } void focus_order_to_top(ObClient *c) { focus_order = g_list_remove(focus_order, c); if (!c->iconic) { focus_order = g_list_prepend(focus_order, c); } else { GList *it; /* insert before first iconic window */ for (it = focus_order; it && !((ObClient*)it->data)->iconic; it = g_list_next(it)); focus_order = g_list_insert_before(focus_order, it, c); } } void focus_order_to_bottom(ObClient *c) { focus_order = g_list_remove(focus_order, c); if (c->iconic) { focus_order = g_list_append(focus_order, c); } else { GList *it; /* insert before first iconic window */ for (it = focus_order; it && !((ObClient*)it->data)->iconic; it = g_list_next(it)); focus_order = g_list_insert_before(focus_order, it, c); } } ObClient *focus_order_find_first(guint desktop) { GList *it; for (it = focus_order; it; it = g_list_next(it)) { ObClient *c = it->data; if (c->desktop == desktop || c->desktop == DESKTOP_ALL) return c; } return NULL; } /*! Returns if a focus target has valid group siblings that can be cycled to in its place */ static gboolean focus_target_has_siblings(ObClient *ft, gboolean iconic_windows, gboolean all_desktops) { GSList *it; if (!ft->group) return FALSE; for (it = ft->group->members; it; it = g_slist_next(it)) { ObClient *c = it->data; /* check that it's not a helper window to avoid infinite recursion */ if (c != ft && c->type == OB_CLIENT_TYPE_NORMAL && focus_valid_target(c, TRUE, iconic_windows, all_desktops, FALSE, FALSE, FALSE)) { return TRUE; } } return FALSE; } gboolean focus_valid_target(ObClient *ft, gboolean helper_windows, gboolean iconic_windows, gboolean all_desktops, gboolean dock_windows, gboolean desktop_windows, gboolean user_request) { gboolean ok = FALSE; /* it's on this desktop unless you want all desktops. do this check first because it will usually filter out the most windows */ ok = (all_desktops || ft->desktop == screen_desktop || ft->desktop == DESKTOP_ALL); /* the window can receive focus somehow */ ok = ok && (ft->can_focus || ft->focus_notify); /* the window is not iconic, or we're allowed to go to iconic ones */ ok = ok && (iconic_windows || !ft->iconic); /* it's the right type of window */ if (dock_windows || desktop_windows) ok = ok && ((dock_windows && ft->type == OB_CLIENT_TYPE_DOCK) || (desktop_windows && ft->type == OB_CLIENT_TYPE_DESKTOP)); /* modal windows are important and can always get focus if they are visible and stuff, so don't change 'ok' based on their type */ else if (!ft->modal) /* normal non-helper windows are valid targets */ ok = ok && ((client_normal(ft) && !client_helper(ft)) || /* helper windows are valid targets if... */ (client_helper(ft) && /* ...a window in its group already has focus and we want to include helper windows ... */ ((focus_client && ft->group == focus_client->group && helper_windows) || /* ... or if there are no other windows in its group that can be focused instead */ !focus_target_has_siblings(ft, iconic_windows, all_desktops)))); /* it's not set to skip the taskbar (but this only applies to normal typed windows, and is overridden if the window is modal or if the user asked for this window to be focused) */ ok = ok && (ft->type != OB_CLIENT_TYPE_NORMAL || ft->modal || user_request || !ft->skip_taskbar); /* it's not going to just send focus off somewhere else (modal window), unless that modal window is not one of our valid targets, then let you choose this window and bring the modal one here */ { ObClient *cft = client_focus_target(ft); ok = ok && (ft == cft || !focus_valid_target(cft, TRUE, iconic_windows, all_desktops, dock_windows, desktop_windows, FALSE)); } return ok; } |