/*
- * i3bar - an xcb-based status- and ws-bar for i3
- *
- * © 2010-2011 Axel Wagner and contributors
+ * vim:ts=4:sw=4:expandtab
*
- * See file LICNSE for license information
+ * i3bar - an xcb-based status- and ws-bar for i3
+ * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
*
- * src/ipc.c: Communicating with i3
+ * ipc.c: Communicating with i3
*
*/
#include <stdlib.h>
#include "common.h"
-ev_io *i3_connection;
-ev_timer *reconn = NULL;
+ev_io *i3_connection;
const char *sock_path;
-typedef void(*handler_t)(char*);
-
-/*
- * Retry to connect.
- *
- */
-void retry_connection(struct ev_loop *loop, ev_timer *w, int events) {
- static int retries = 8;
- if (init_connection(sock_path) == 0) {
- if (retries == 0) {
- ELOG("Retried 8 times - connection failed!\n");
- exit(EXIT_FAILURE);
- }
- retries--;
- return;
- }
- retries = 8;
- ev_timer_stop(loop, w);
- subscribe_events();
-
- /* We get the current outputs and workspaces, to
- * reconfigure all bars with the current configuration */
- i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
- if (!config.disable_ws) {
- i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_WORKSPACES, NULL);
- }
-}
-
-/*
- * Schedule a reconnect
- *
- */
-void reconnect() {
- if (reconn == NULL) {
- if ((reconn = malloc(sizeof(ev_timer))) == NULL) {
- ELOG("malloc() failed: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
- } else {
- ev_timer_stop(main_loop, reconn);
- }
- ev_timer_init(reconn, retry_connection, 0.25, 0.25);
- ev_timer_start(main_loop, reconn);
-}
+typedef void (*handler_t)(char *);
/*
* Called, when we get a reply to a command from i3.
*
*/
void got_command_reply(char *reply) {
- /* TODO: Error handling for command-replies */
+ /* TODO: Error handling for command replies */
}
/*
- * Called, when we get a reply with workspaces-data
+ * Called, when we get a reply with workspaces data
*
*/
void got_workspace_reply(char *reply) {
DLOG("Got Workspace-Data!\n");
parse_workspaces_json(reply);
- draw_bars();
+ draw_bars(false);
}
/*
*/
void got_subscribe_reply(char *reply) {
DLOG("Got Subscribe Reply: %s\n", reply);
- /* TODO: Error handling for subscribe-commands */
+ /* TODO: Error handling for subscribe commands */
}
/*
- * Called, when we get a reply with outputs-data
+ * Called, when we get a reply with outputs data
*
*/
void got_output_reply(char *reply) {
parse_outputs_json(reply);
DLOG("Reconfiguring Windows...\n");
realloc_sl_buffer();
- reconfig_windows();
+ reconfig_windows(false);
+
+ i3_output *o_walk;
+ SLIST_FOREACH(o_walk, outputs, slist) {
+ kick_tray_clients(o_walk);
+ }
+
+ draw_bars(false);
+}
+
+/*
+ * Called when we get the configuration for our bar instance
+ *
+ */
+void got_bar_config(char *reply) {
+ DLOG("Received bar config \"%s\"\n", reply);
+ /* We initiate the main function by requesting infos about the outputs and
+ * workspaces. Everything else (creating the bars, showing the right workspace-
+ * buttons and more) is taken care of by the event-drivenness of the code */
+ i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
+
+ free_colors(&(config.colors));
+ parse_config_json(reply);
+
+ /* Now we can actually use 'config', so let's subscribe to the appropriate
+ * events and request the workspaces if necessary. */
+ subscribe_events();
+ if (!config.disable_ws)
+ i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_WORKSPACES, NULL);
+
+ /* Initialize the rest of XCB */
+ init_xcb_late(config.fontname);
+
+ /* Resolve color strings to colorpixels and save them, then free the strings. */
+ init_colors(&(config.colors));
+
+ start_child(config.command);
+ FREE(config.command);
}
-/* Data-structure to easily call the reply-handlers later */
+/* Data-structure to easily call the reply handlers later */
handler_t reply_handlers[] = {
&got_command_reply,
&got_workspace_reply,
&got_subscribe_reply,
&got_output_reply,
+ NULL,
+ NULL,
+ &got_bar_config,
};
/*
- * Called, when a workspace-event arrives (i.e. the user changed the workspace)
+ * Called, when a workspace event arrives (i.e. the user changed the workspace)
*
*/
void got_workspace_event(char *event) {
}
/*
- * Called, when an output-event arrives (i.e. the screen-configuration changed)
+ * Called, when an output event arrives (i.e. the screen-configuration changed)
*
*/
void got_output_event(char *event) {
}
}
-/* Data-structure to easily call the reply-handlers later */
+/*
+ * Called, when a mode event arrives (i3 changed binding mode).
+ *
+ */
+void got_mode_event(char *event) {
+ DLOG("Got Mode Event!\n");
+ parse_mode_json(event);
+ draw_bars(false);
+}
+
+/*
+ * Called, when a barconfig_update event arrives (i.e. i3 changed the bar hidden_state or mode)
+ *
+ */
+void got_bar_config_update(char *event) {
+ /* check whether this affect this bar instance by checking the bar_id */
+ char *expected_id;
+ sasprintf(&expected_id, "\"id\":\"%s\"", config.bar_id);
+ char *found_id = strstr(event, expected_id);
+ FREE(expected_id);
+ if (found_id == NULL)
+ return;
+
+ /* reconfigure the bar based on the current outputs */
+ i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
+
+ free_colors(&(config.colors));
+
+ /* update the configuration with the received settings */
+ DLOG("Received bar config update \"%s\"\n", event);
+ bar_display_mode_t old_mode = config.hide_on_modifier;
+ parse_config_json(event);
+ if (old_mode != config.hide_on_modifier) {
+ reconfig_windows(true);
+ }
+
+ /* update fonts and colors */
+ init_xcb_late(config.fontname);
+ init_colors(&(config.colors));
+ realloc_sl_buffer();
+
+ draw_bars(false);
+}
+
+/* Data-structure to easily call the event handlers later */
handler_t event_handlers[] = {
&got_workspace_event,
- &got_output_event
+ &got_output_event,
+ &got_mode_event,
+ NULL,
+ &got_bar_config_update,
};
/*
int fd = watcher->fd;
/* First we only read the header, because we know its length */
- uint32_t header_len = strlen(I3_IPC_MAGIC) + sizeof(uint32_t)*2;
- char *header = malloc(header_len);
- if (header == NULL) {
- ELOG("Could not allocate memory: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
+ uint32_t header_len = strlen(I3_IPC_MAGIC) + sizeof(uint32_t) * 2;
+ char *header = smalloc(header_len);
/* We first parse the fixed-length IPC-header, to know, how much data
* we have to expect */
exit(EXIT_FAILURE);
}
if (n == 0) {
- /* EOF received. We try to recover a few times, because most likely
- * i3 just restarted */
- ELOG("EOF received, try to recover...\n");
- destroy_connection();
- reconnect();
- return;
+ /* EOF received. Since i3 will restart i3bar instances as appropriate,
+ * we exit here. */
+ DLOG("EOF received, exiting...\n");
+ clean_xcb();
+ exit(EXIT_SUCCESS);
}
rec += n;
}
if (strncmp(header, I3_IPC_MAGIC, strlen(I3_IPC_MAGIC))) {
ELOG("Wrong magic code: %.*s\n Expected: %s\n",
- (int) strlen(I3_IPC_MAGIC),
+ (int)strlen(I3_IPC_MAGIC),
header,
I3_IPC_MAGIC);
exit(EXIT_FAILURE);
char *walk = header + strlen(I3_IPC_MAGIC);
uint32_t size;
- memcpy(&size, (uint32_t*)walk, sizeof(uint32_t));
+ memcpy(&size, (uint32_t *)walk, sizeof(uint32_t));
walk += sizeof(uint32_t);
uint32_t type;
- memcpy(&type, (uint32_t*)walk, sizeof(uint32_t));
+ memcpy(&type, (uint32_t *)walk, sizeof(uint32_t));
/* Now that we know, what to expect, we can start read()ing the rest
* of the message */
- char *buffer = malloc(size + 1);
- if (buffer == NULL) {
- /* EOF received. We try to recover a few times, because most likely
- * i3 just restarted */
- ELOG("EOF received, try to recover...\n");
- destroy_connection();
- reconnect();
- return;
- }
+ char *buffer = smalloc(size + 1);
rec = 0;
while (rec < size) {
type ^= 1 << 31;
event_handlers[type](buffer);
} else {
- reply_handlers[type](buffer);
+ if (reply_handlers[type])
+ reply_handlers[type](buffer);
}
FREE(header);
}
/* We are a wellbehaved client and send a proper header first */
- uint32_t to_write = strlen (I3_IPC_MAGIC) + sizeof(uint32_t)*2 + len;
+ uint32_t to_write = strlen(I3_IPC_MAGIC) + sizeof(uint32_t) * 2 + len;
/* TODO: I'm not entirely sure if this buffer really has to contain more
* than the pure header (why not just write() the payload from *payload?),
* but we leave it for now */
- char *buffer = malloc(to_write);
- if (buffer == NULL) {
- ELOG("Could not allocate memory: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
-
+ char *buffer = smalloc(to_write);
char *walk = buffer;
strncpy(buffer, I3_IPC_MAGIC, strlen(I3_IPC_MAGIC));
if (payload != NULL)
strncpy(walk, payload, len);
- uint32_t written = 0;
-
- while (to_write > 0) {
- int n = write(i3_connection->fd, buffer + written, to_write);
- if (n == -1) {
- ELOG("write() failed: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
-
- to_write -= n;
- written += n;
- }
+ swrite(i3_connection->fd, buffer, to_write);
FREE(buffer);
/*
* Initiate a connection to i3.
- * socket-path must be a valid path to the ipc_socket of i3
+ * socket_path must be a valid path to the ipc_socket of i3
*
*/
int init_connection(const char *socket_path) {
sock_path = socket_path;
- int sockfd = socket(AF_LOCAL, SOCK_STREAM, 0);
- if (sockfd == -1) {
- ELOG("Could not create Socket: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
-
- struct sockaddr_un addr;
- memset(&addr, 0, sizeof(struct sockaddr_un));
- addr.sun_family = AF_LOCAL;
- strcpy(addr.sun_path, sock_path);
- if (connect(sockfd, (const struct sockaddr*) &addr, sizeof(struct sockaddr_un)) < 0) {
- ELOG("Could not connect to i3! %s: %s\n", sock_path, strerror(errno));
- reconnect();
- return 0;
- }
-
- i3_connection = malloc(sizeof(ev_io));
- if (i3_connection == NULL) {
- ELOG("malloc() failed: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
+ int sockfd = ipc_connect(socket_path);
+ i3_connection = smalloc(sizeof(ev_io));
ev_io_init(i3_connection, &got_data, sockfd, EV_READ);
ev_io_start(main_loop, i3_connection);
return 1;
/*
* Destroy the connection to i3.
*/
-void destroy_connection() {
+void destroy_connection(void) {
close(i3_connection->fd);
ev_io_stop(main_loop, i3_connection);
}
* Subscribe to all the i3-events, we need
*
*/
-void subscribe_events() {
+void subscribe_events(void) {
if (config.disable_ws) {
- i3_send_msg(I3_IPC_MESSAGE_TYPE_SUBSCRIBE, "[ \"output\" ]");
+ i3_send_msg(I3_IPC_MESSAGE_TYPE_SUBSCRIBE, "[ \"output\", \"mode\", \"barconfig_update\" ]");
} else {
- i3_send_msg(I3_IPC_MESSAGE_TYPE_SUBSCRIBE, "[ \"workspace\", \"output\" ]");
+ i3_send_msg(I3_IPC_MESSAGE_TYPE_SUBSCRIBE, "[ \"workspace\", \"output\", \"mode\", \"barconfig_update\" ]");
}
}
projects / i3 / i3 / blobdiff