i3
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00001 /* 00002 * vim:ts=4:sw=4:expandtab 00003 * 00004 * i3 - an improved dynamic tiling window manager 00005 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE) 00006 * 00007 * window.c: Updates window attributes (X11 hints/properties). 00008 * 00009 */ 00010 #include "all.h" 00011 00012 /* 00013 * Updates the WM_CLASS (consisting of the class and instance) for the 00014 * given window. 00015 * 00016 */ 00017 void window_update_class(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt) { 00018 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00019 DLOG("WM_CLASS not set.\n"); 00020 FREE(prop); 00021 return; 00022 } 00023 00024 /* We cannot use asprintf here since this property contains two 00025 * null-terminated strings (for compatibility reasons). Instead, we 00026 * use strdup() on both strings */ 00027 char *new_class = xcb_get_property_value(prop); 00028 00029 FREE(win->class_instance); 00030 FREE(win->class_class); 00031 00032 win->class_instance = sstrdup(new_class); 00033 if ((strlen(new_class) + 1) < xcb_get_property_value_length(prop)) 00034 win->class_class = sstrdup(new_class + strlen(new_class) + 1); 00035 else win->class_class = NULL; 00036 LOG("WM_CLASS changed to %s (instance), %s (class)\n", 00037 win->class_instance, win->class_class); 00038 00039 if (before_mgmt) { 00040 free(prop); 00041 return; 00042 } 00043 00044 run_assignments(win); 00045 00046 free(prop); 00047 } 00048 00049 /* 00050 * Updates the name by using _NET_WM_NAME (encoded in UTF-8) for the given 00051 * window. Further updates using window_update_name_legacy will be ignored. 00052 * 00053 */ 00054 void window_update_name(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt) { 00055 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00056 DLOG("_NET_WM_NAME not specified, not changing\n"); 00057 FREE(prop); 00058 return; 00059 } 00060 00061 /* Save the old pointer to make the update atomic */ 00062 char *new_name; 00063 if (asprintf(&new_name, "%.*s", xcb_get_property_value_length(prop), 00064 (char*)xcb_get_property_value(prop)) == -1) { 00065 perror("asprintf()"); 00066 DLOG("Could not get window name\n"); 00067 free(prop); 00068 return; 00069 } 00070 /* Convert it to UCS-2 here for not having to convert it later every time we want to pass it to X */ 00071 int len; 00072 char *ucs2_name = convert_utf8_to_ucs2(new_name, &len); 00073 if (ucs2_name == NULL) { 00074 LOG("Could not convert _NET_WM_NAME to UCS-2, ignoring new hint\n"); 00075 FREE(new_name); 00076 free(prop); 00077 return; 00078 } 00079 FREE(win->name_x); 00080 FREE(win->name_json); 00081 win->name_json = new_name; 00082 win->name_x = ucs2_name; 00083 win->name_len = len; 00084 win->name_x_changed = true; 00085 LOG("_NET_WM_NAME changed to \"%s\"\n", win->name_json); 00086 00087 win->uses_net_wm_name = true; 00088 00089 if (before_mgmt) { 00090 free(prop); 00091 return; 00092 } 00093 00094 run_assignments(win); 00095 00096 free(prop); 00097 } 00098 00099 /* 00100 * Updates the name by using WM_NAME (encoded in COMPOUND_TEXT). We do not 00101 * touch what the client sends us but pass it to xcb_image_text_8. To get 00102 * proper unicode rendering, the application has to use _NET_WM_NAME (see 00103 * window_update_name()). 00104 * 00105 */ 00106 void window_update_name_legacy(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt) { 00107 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00108 DLOG("WM_NAME not set (_NET_WM_NAME is what you want anyways).\n"); 00109 FREE(prop); 00110 return; 00111 } 00112 00113 /* ignore update when the window is known to already have a UTF-8 name */ 00114 if (win->uses_net_wm_name) { 00115 free(prop); 00116 return; 00117 } 00118 00119 char *new_name; 00120 if (asprintf(&new_name, "%.*s", xcb_get_property_value_length(prop), 00121 (char*)xcb_get_property_value(prop)) == -1) { 00122 perror("asprintf()"); 00123 DLOG("Could not get legacy window name\n"); 00124 free(prop); 00125 return; 00126 } 00127 00128 LOG("WM_NAME changed to \"%s\"\n", new_name); 00129 LOG("Using legacy window title. Note that in order to get Unicode window " 00130 "titles in i3, the application has to set _NET_WM_NAME (UTF-8)\n"); 00131 00132 FREE(win->name_x); 00133 FREE(win->name_json); 00134 win->name_x = new_name; 00135 win->name_json = sstrdup(new_name); 00136 win->name_len = strlen(new_name); 00137 win->name_x_changed = true; 00138 00139 if (before_mgmt) { 00140 free(prop); 00141 return; 00142 } 00143 00144 run_assignments(win); 00145 00146 free(prop); 00147 } 00148 00149 /* 00150 * Updates the CLIENT_LEADER (logical parent window). 00151 * 00152 */ 00153 void window_update_leader(i3Window *win, xcb_get_property_reply_t *prop) { 00154 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00155 DLOG("CLIENT_LEADER not set.\n"); 00156 FREE(prop); 00157 return; 00158 } 00159 00160 xcb_window_t *leader = xcb_get_property_value(prop); 00161 if (leader == NULL) { 00162 free(prop); 00163 return; 00164 } 00165 00166 DLOG("Client leader changed to %08x\n", *leader); 00167 00168 win->leader = *leader; 00169 00170 free(prop); 00171 } 00172 00173 /* 00174 * Updates the TRANSIENT_FOR (logical parent window). 00175 * 00176 */ 00177 void window_update_transient_for(i3Window *win, xcb_get_property_reply_t *prop) { 00178 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00179 DLOG("TRANSIENT_FOR not set.\n"); 00180 FREE(prop); 00181 return; 00182 } 00183 00184 xcb_window_t transient_for; 00185 if (!xcb_icccm_get_wm_transient_for_from_reply(&transient_for, prop)) { 00186 free(prop); 00187 return; 00188 } 00189 00190 DLOG("Transient for changed to %08x\n", transient_for); 00191 00192 win->transient_for = transient_for; 00193 00194 free(prop); 00195 } 00196 00197 /* 00198 * Updates the _NET_WM_STRUT_PARTIAL (reserved pixels at the screen edges) 00199 * 00200 */ 00201 void window_update_strut_partial(i3Window *win, xcb_get_property_reply_t *prop) { 00202 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00203 DLOG("_NET_WM_STRUT_PARTIAL not set.\n"); 00204 FREE(prop); 00205 return; 00206 } 00207 00208 uint32_t *strut; 00209 if (!(strut = xcb_get_property_value(prop))) { 00210 free(prop); 00211 return; 00212 } 00213 00214 DLOG("Reserved pixels changed to: left = %d, right = %d, top = %d, bottom = %d\n", 00215 strut[0], strut[1], strut[2], strut[3]); 00216 00217 win->reserved = (struct reservedpx){ strut[0], strut[1], strut[2], strut[3] }; 00218 00219 free(prop); 00220 } 00221 00222 /* 00223 * Updates the WM_WINDOW_ROLE 00224 * 00225 */ 00226 void window_update_role(i3Window *win, xcb_get_property_reply_t *prop, bool before_mgmt) { 00227 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00228 DLOG("WM_WINDOW_ROLE not set.\n"); 00229 FREE(prop); 00230 return; 00231 } 00232 00233 char *new_role; 00234 if (asprintf(&new_role, "%.*s", xcb_get_property_value_length(prop), 00235 (char*)xcb_get_property_value(prop)) == -1) { 00236 perror("asprintf()"); 00237 DLOG("Could not get WM_WINDOW_ROLE\n"); 00238 free(prop); 00239 return; 00240 } 00241 FREE(win->role); 00242 win->role = new_role; 00243 LOG("WM_WINDOW_ROLE changed to \"%s\"\n", win->role); 00244 00245 if (before_mgmt) { 00246 free(prop); 00247 return; 00248 } 00249 00250 run_assignments(win); 00251 00252 free(prop); 00253 } 00254 00255 /* 00256 * Updates the WM_HINTS (we only care about the input focus handling part). 00257 * 00258 */ 00259 void window_update_hints(i3Window *win, xcb_get_property_reply_t *prop) { 00260 if (prop == NULL || xcb_get_property_value_length(prop) == 0) { 00261 DLOG("WM_HINTS not set.\n"); 00262 FREE(prop); 00263 return; 00264 } 00265 00266 xcb_icccm_wm_hints_t hints; 00267 00268 if (!xcb_icccm_get_wm_hints_from_reply(&hints, prop)) { 00269 DLOG("Could not get WM_HINTS\n"); 00270 free(prop); 00271 return; 00272 } 00273 00274 win->doesnt_accept_focus = !hints.input; 00275 LOG("WM_HINTS.input changed to \"%d\"\n", hints.input); 00276 00277 free(prop); 00278 }