]> git.lizzy.rs Git - bspwm.git/blobdiff - bspwm.c
Asynchronously parse rule command output
[bspwm.git] / bspwm.c
diff --git a/bspwm.c b/bspwm.c
index 4cba2f303f2303e754533c2b9ee8502825293a8d..d9da173b626797c0a7a56878070642c0e2d61477 100644 (file)
--- a/bspwm.c
+++ b/bspwm.c
-#include <stdlib.h>
+/* * Copyright (c) 2012-2013 Bastien Dejean
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <signal.h>
-#include <fcntl.h>
+#include <sys/select.h>
+#ifdef __OpenBSD__
+#include <sys/types.h>
+#endif
 #include <sys/socket.h>
 #include <sys/un.h>
-#include <sys/select.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <xcb/xcb.h>
-#include <xcb/xcb_event.h>
-#include <xcb/xcb_ewmh.h>
-#include <xcb/xinerama.h>
+#include <signal.h>
+#include <unistd.h>
 #include "types.h"
+#include "desktop.h"
+#include "monitor.h"
 #include "settings.h"
 #include "messages.h"
-#include "rules.h"
+#include "subscribe.h"
 #include "events.h"
 #include "common.h"
-#include "helpers.h"
 #include "window.h"
-#include "bspwm.h"
-#include "tree.h"
+#include "history.h"
+#include "stack.h"
 #include "ewmh.h"
-
-void quit(void)
-{
-    running = false;
-}
-
-void register_events(void)
-{
-    uint32_t values[] = {ROOT_EVENT_MASK};
-    xcb_generic_error_t *e = xcb_request_check(dpy, xcb_change_window_attributes_checked(dpy, screen->root, XCB_CW_EVENT_MASK, values));
-    if (e != NULL) {
-        xcb_disconnect(dpy);
-        err("another WM is already running\n");
-    }
-}
-
-void grab_buttons(void)
-{
-    xcb_grab_button(dpy, false, screen->root, XCB_EVENT_MASK_BUTTON_PRESS, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, XCB_BUTTON_INDEX_1, button_modifier);
-    xcb_grab_button(dpy, false, screen->root, XCB_EVENT_MASK_BUTTON_PRESS, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, XCB_BUTTON_INDEX_2, button_modifier);
-    xcb_grab_button(dpy, false, screen->root, XCB_EVENT_MASK_BUTTON_PRESS, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, XCB_BUTTON_INDEX_3, button_modifier);
-}
-
-void ungrab_buttons(void)
-{
-    xcb_ungrab_button(dpy, XCB_BUTTON_INDEX_1, screen->root, button_modifier);
-    xcb_ungrab_button(dpy, XCB_BUTTON_INDEX_2, screen->root, button_modifier);
-    xcb_ungrab_button(dpy, XCB_BUTTON_INDEX_3, screen->root, button_modifier);
-}
-
-void adopt_orphans(void)
-{
-    xcb_query_tree_reply_t *qtr = xcb_query_tree_reply(dpy, xcb_query_tree(dpy, screen->root), NULL);
-    if (qtr == NULL)
-        return;
-    int len = xcb_query_tree_children_length(qtr);
-    if (len == 0)
-        return;
-    xcb_window_t *wins = xcb_query_tree_children(qtr);
-    for (int i = 0; i < len; i++)
-        manage_window(wins[i]);
-    free(wins);
-    free(qtr);
-}
-
-void setup(void)
-{
-    ewmh_init();
-    screen = xcb_setup_roots_iterator(xcb_get_setup(dpy)).data;
-    if (!screen)
-        err("error: cannot aquire screen\n");
-
-    screen_width = screen->width_in_pixels;
-    screen_height = screen->height_in_pixels;
-    root_depth = screen->root_depth;
-
-    xcb_atom_t net_atoms[] = {ewmh->_NET_SUPPORTED,
-                              ewmh->_NET_DESKTOP_NAMES,
-                              ewmh->_NET_NUMBER_OF_DESKTOPS,
-                              ewmh->_NET_CURRENT_DESKTOP,
-                              ewmh->_NET_CLIENT_LIST,
-                              ewmh->_NET_ACTIVE_WINDOW,
-                              ewmh->_NET_WM_DESKTOP,
-                              ewmh->_NET_WM_STATE,
-                              ewmh->_NET_WM_STATE_FULLSCREEN,
-                              ewmh->_NET_WM_WINDOW_TYPE,
-                              ewmh->_NET_WM_WINDOW_TYPE_DOCK,
-                              ewmh->_NET_WM_WINDOW_TYPE_NOTIFICATION,
-                              ewmh->_NET_WM_WINDOW_TYPE_DIALOG,
-                              ewmh->_NET_WM_WINDOW_TYPE_UTILITY,
-                              ewmh->_NET_WM_WINDOW_TYPE_TOOLBAR};
-
-    xcb_ewmh_set_supported(ewmh, default_screen, LENGTH(net_atoms), net_atoms);
-
-    monitor_uid = desktop_uid = client_uid = 0;
-    mon = last_mon = mon_head = mon_tail = NULL;
-
-    bool xinerama_is_active = false;
-
-    if (xcb_get_extension_data(dpy, &xcb_xinerama_id)->present) {
-        xcb_xinerama_is_active_reply_t *xia = xcb_xinerama_is_active_reply(dpy, xcb_xinerama_is_active(dpy), NULL);
-        if (xia != NULL) {
-            xinerama_is_active = xia->state;
-            free(xia);
-        }
-    }
-
-    if (xinerama_is_active) {
-        xcb_xinerama_query_screens_reply_t *xsq = xcb_xinerama_query_screens_reply(dpy, xcb_xinerama_query_screens(dpy), NULL);
-        xcb_xinerama_screen_info_t *xsi = xcb_xinerama_query_screens_screen_info(xsq);
-        int n = xcb_xinerama_query_screens_screen_info_length(xsq);
-        PRINTF("number of monitors: %d\n", n);
-        for (int i = 0; i < n; i++) {
-            xcb_xinerama_screen_info_t info = xsi[i];
-            xcb_rectangle_t rect = (xcb_rectangle_t) {info.x_org, info.y_org, info.width, info.height};
-            add_monitor(&rect);
-        }
-        free(xsq);
-    } else {
-        warn("Xinerama is inactive");
-        xcb_rectangle_t rect = (xcb_rectangle_t) {0, 0, screen_width, screen_height};
-        add_monitor(&rect);
-    }
-
-    for (monitor_t *m = mon_head; m != NULL; m = m->next)
-        add_desktop(m, NULL);
-
-    ewmh_update_number_of_desktops();
-    ewmh_update_desktop_names();
-    rule_head = make_rule();
-    frozen_pointer = make_pointer_state();
-    get_pointer_position(&pointer_position);
-    split_mode = MODE_AUTOMATIC;
-}
+#include "rule.h"
+#include "bspwm.h"
 
 int main(int argc, char *argv[])
 {
-    if (argc == 2 && strcmp(argv[1], "-v") == 0) {
-        printf("%s\n", VERSION);
-        exit(EXIT_SUCCESS);
-    }
-
     fd_set descriptors;
     char socket_path[MAXLEN];
-    int sock_fd, ret_fd, dpy_fd, sel, n;
+    config_path[0] = '\0';
+    int sock_fd, cli_fd, dpy_fd, max_fd, n;
     struct sockaddr_un sock_address;
-    size_t rsplen = 0;
+    size_t rsp_len = 0;
     char msg[BUFSIZ] = {0};
     char rsp[BUFSIZ] = {0};
-
     xcb_generic_event_t *event;
+    char opt;
+
+    while ((opt = getopt(argc, argv, "hvc:")) != -1) {
+        switch (opt) {
+            case 'h':
+                printf(WM_NAME " [-h|-v|-c CONFIG_PATH]\n");
+                exit(EXIT_SUCCESS);
+                break;
+            case 'v':
+                printf("%s\n", VERSION);
+                exit(EXIT_SUCCESS);
+                break;
+            case 'c':
+                snprintf(config_path, sizeof(config_path), "%s", optarg);
+                break;
+        }
+    }
 
-    running = true;
+    if (config_path[0] == '\0') {
+        char *config_home = getenv(CONFIG_HOME_ENV);
+        if (config_home != NULL)
+            snprintf(config_path, sizeof(config_path), "%s/%s/%s", config_home, WM_NAME, CONFIG_NAME);
+        else
+            snprintf(config_path, sizeof(config_path), "%s/%s/%s/%s", getenv("HOME"), ".config", WM_NAME, CONFIG_NAME);
+    }
 
     dpy = xcb_connect(NULL, &default_screen);
 
     if (xcb_connection_has_error(dpy))
-        err("error: cannot open display\n");
+        err("Can't open the default display.\n");
 
     setup();
-    register_events();
 
     dpy_fd = xcb_get_file_descriptor(dpy);
 
     char *sp = getenv(SOCKET_ENV_VAR);
-
-    strncpy(socket_path, (sp == NULL ? DEFAULT_SOCKET_PATH : sp), sizeof(socket_path));
+    snprintf(socket_path, sizeof(socket_path), "%s", (sp == NULL ? DEFAULT_SOCKET_PATH : sp));
 
     sock_address.sun_family = AF_UNIX;
-    strncpy(sock_address.sun_path, socket_path, sizeof(sock_address.sun_path));
+    snprintf(sock_address.sun_path, sizeof(sock_address.sun_path), "%s", socket_path);
     unlink(socket_path);
 
     sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
 
     if (sock_fd == -1)
-        err("error: could not create socket\n");
+        err("Couldn't create the socket.\n");
 
-    bind(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address));
-    listen(sock_fd, SOMAXCONN);
+    if (bind(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address)) == -1)
+        err("Couldn't bind a name to the socket.\n");
 
-    sel = MAX(sock_fd, dpy_fd) + 1;
+    if (listen(sock_fd, SOMAXCONN) == -1)
+        err("Couldn't listen to the socket.\n");
 
+    signal(SIGPIPE, SIG_IGN);
     load_settings();
-    run_autostart();
-    grab_buttons();
-    ewmh_update_wm_name();
-    adopt_orphans();
+    run_config();
+    running = true;
 
     while (running) {
 
@@ -199,19 +124,41 @@ int main(int argc, char *argv[])
         FD_ZERO(&descriptors);
         FD_SET(sock_fd, &descriptors);
         FD_SET(dpy_fd, &descriptors);
+        max_fd = MAX(sock_fd, dpy_fd);
+        for (pending_rule_t *pr = pending_rule_head; pr != NULL; pr = pr->next) {
+            FD_SET(pr->fd, &descriptors);
+            if (pr->fd > max_fd)
+                max_fd = pr->fd;
+        }
 
-        if (select(sel, &descriptors, NULL, NULL, NULL)) {
+        if (select(max_fd + 1, &descriptors, NULL, NULL, NULL) > 0) {
+
+            pending_rule_t *pr = pending_rule_head;
+            while (pr != NULL) {
+                pending_rule_t *next = pr->next;
+                if (FD_ISSET(pr->fd, &descriptors)) {
+                    manage_window(pr->win, pr->csq, pr->fd);
+                    remove_pending_rule(pr);
+                }
+                pr = next;
+            }
 
             if (FD_ISSET(sock_fd, &descriptors)) {
-                ret_fd = accept(sock_fd, NULL, 0);
-                if (ret_fd > 0 && (n = recv(ret_fd, msg, sizeof(msg), 0)) > 0) {
+                cli_fd = accept(sock_fd, NULL, 0);
+                if (cli_fd > 0 && (n = recv(cli_fd, msg, sizeof(msg), 0)) > 0) {
                     msg[n] = '\0';
-                    process_message(msg, rsp);
-                    rsplen = strlen(rsp);
-                    if (rsp[rsplen - 1] == '\n')
-                        rsp[--rsplen] = '\0';
-                    send(ret_fd, rsp, rsplen, 0);
-                    close(ret_fd);
+                    if (handle_message(msg, n, rsp)) {
+                        rsp_len = strlen(rsp);
+                    } else {
+                        rsp[0] = MESSAGE_FAILURE;
+                        rsp_len = 1;
+                    }
+                    if (rsp_len == 1 && rsp[0] == MESSAGE_SUBSCRIBE) {
+                        add_subscriber(cli_fd);
+                    } else {
+                        send(cli_fd, rsp, rsp_len, 0);
+                        close(cli_fd);
+                    }
                     rsp[0] = '\0';
                 }
             }
@@ -222,18 +169,146 @@ int main(int argc, char *argv[])
                     free(event);
                 }
             }
-
         }
 
-        if (xcb_connection_has_error(dpy)) {
-            err("connection has errors\n");
-        }
+        if (xcb_connection_has_error(dpy))
+            err("The server has closed the connection.\n");
     }
 
+    cleanup();
     close(sock_fd);
     xcb_ewmh_connection_wipe(ewmh);
+    xcb_destroy_window(dpy, motion_recorder);
     free(ewmh);
     xcb_flush(dpy);
     xcb_disconnect(dpy);
-    return 0;
+    return exit_status;
+}
+
+void init(void)
+{
+    num_monitors = num_desktops = num_clients = 0;
+    monitor_uid = desktop_uid = 0;
+    mon = mon_head = mon_tail = pri_mon = NULL;
+    history_head = history_tail = history_needle = NULL;
+    stack_head = stack_tail = NULL;
+    subscribe_head = subscribe_tail = NULL;
+    pending_rule_head = pending_rule_tail = NULL;
+    last_motion_time = last_motion_x = last_motion_y = 0;
+    visible = auto_raise = sticky_still = record_history = true;
+    randr_base = 0;
+    exit_status = 0;
+}
+
+void setup(void)
+{
+    init();
+    ewmh_init();
+    screen = xcb_setup_roots_iterator(xcb_get_setup(dpy)).data;
+    if (screen == NULL)
+        err("Can't acquire the default screen.\n");
+    root = screen->root;
+    register_events();
+
+    screen_width = screen->width_in_pixels;
+    screen_height = screen->height_in_pixels;
+    root_depth = screen->root_depth;
+
+    uint32_t mask = XCB_CW_EVENT_MASK;
+    uint32_t values[] = {XCB_EVENT_MASK_POINTER_MOTION};
+    motion_recorder = xcb_generate_id(dpy);
+    xcb_create_window(dpy, XCB_COPY_FROM_PARENT, motion_recorder, root, 0, 0, screen_width, screen_height, 0, XCB_WINDOW_CLASS_INPUT_ONLY, XCB_COPY_FROM_PARENT, mask, values);
+
+    xcb_atom_t net_atoms[] = {ewmh->_NET_SUPPORTED,
+                              ewmh->_NET_SUPPORTING_WM_CHECK,
+                              ewmh->_NET_DESKTOP_NAMES,
+                              ewmh->_NET_NUMBER_OF_DESKTOPS,
+                              ewmh->_NET_CURRENT_DESKTOP,
+                              ewmh->_NET_CLIENT_LIST,
+                              ewmh->_NET_ACTIVE_WINDOW,
+                              ewmh->_NET_CLOSE_WINDOW,
+                              ewmh->_NET_WM_DESKTOP,
+                              ewmh->_NET_WM_STATE,
+                              ewmh->_NET_WM_STATE_FULLSCREEN,
+                              ewmh->_NET_WM_STATE_STICKY,
+                              ewmh->_NET_WM_STATE_DEMANDS_ATTENTION,
+                              ewmh->_NET_WM_WINDOW_TYPE,
+                              ewmh->_NET_WM_WINDOW_TYPE_DOCK,
+                              ewmh->_NET_WM_WINDOW_TYPE_DESKTOP,
+                              ewmh->_NET_WM_WINDOW_TYPE_NOTIFICATION,
+                              ewmh->_NET_WM_WINDOW_TYPE_DIALOG,
+                              ewmh->_NET_WM_WINDOW_TYPE_UTILITY,
+                              ewmh->_NET_WM_WINDOW_TYPE_TOOLBAR};
+
+    xcb_ewmh_set_supported(ewmh, default_screen, LENGTH(net_atoms), net_atoms);
+    ewmh_set_supporting(motion_recorder);
+
+#define GETATOM(a) \
+    get_atom(#a, &a);
+    GETATOM(WM_DELETE_WINDOW)
+    GETATOM(WM_TAKE_FOCUS)
+    GETATOM(_BSPWM_FLOATING_WINDOW)
+    GETATOM(_NET_WM_WINDOW_OPACITY)
+#undef GETATOM
+
+    const xcb_query_extension_reply_t *qep = xcb_get_extension_data(dpy, &xcb_randr_id);
+    if (qep->present && import_monitors()) {
+        randr = true;
+        randr_base = qep->first_event;
+        xcb_randr_select_input(dpy, root, XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
+    } else {
+        randr = false;
+        warn("Couldn't retrieve monitors via RandR.\n");
+        xcb_rectangle_t rect = (xcb_rectangle_t) {0, 0, screen_width, screen_height};
+        monitor_t *m = add_monitor(rect);
+        add_desktop(m, make_desktop(NULL));
+    }
+
+    ewmh_update_number_of_desktops();
+    ewmh_update_desktop_names();
+    ewmh_update_current_desktop();
+    frozen_pointer = make_pointer_state();
+    xcb_get_input_focus_reply_t *ifo = xcb_get_input_focus_reply(dpy, xcb_get_input_focus(dpy), NULL);
+    if (ifo != NULL && (ifo->focus == XCB_INPUT_FOCUS_POINTER_ROOT || ifo->focus == XCB_NONE))
+        clear_input_focus();
+    free(ifo);
+}
+
+void register_events(void)
+{
+    uint32_t values[] = {ROOT_EVENT_MASK};
+    xcb_generic_error_t *e = xcb_request_check(dpy, xcb_change_window_attributes_checked(dpy, root, XCB_CW_EVENT_MASK, values));
+    if (e != NULL) {
+        xcb_disconnect(dpy);
+        err("Another window manager is already running.\n");
+    }
+}
+
+void quit(void)
+{
+    running = false;
+}
+
+void cleanup(void)
+{
+    while (mon_head != NULL)
+        remove_monitor(mon_head);
+    while (stack_head != NULL)
+        remove_stack(stack_head);
+    while (subscribe_head != NULL)
+        remove_subscriber(subscribe_head);
+    while (pending_rule_head != NULL)
+        remove_pending_rule(pending_rule_head);
+    empty_history();
+    free(frozen_pointer);
+}
+
+void put_status(void)
+{
+    subscriber_list_t *sb = subscribe_head;
+    while (sb != NULL) {
+        subscriber_list_t *next = sb->next;
+        feed_subscriber(sb);
+        sb = next;
+    }
 }