Ensure format of dumped bindings for i3bar is compatible with i3 bindings.

fixes #1695

i3bar/include/config.h

@@ -22,16 +22,16 @@ typedef enum { M_DOCK = 0,
                M_HIDE = 1,
                M_INVISIBLE = 2 } bar_display_mode_t;
 
-typedef struct mouse_command_t {
-    int button;
+typedef struct binding_t {
+    int input_code;
     char *command;
 
-    TAILQ_ENTRY(mouse_command_t) commands;
-} mouse_command_t;
+    TAILQ_ENTRY(binding_t) bindings;
+} binding_t;
 
 typedef struct config_t {
     int modifier;
-    TAILQ_HEAD(mouse_commands_head, mouse_command_t) mouse_commands;
+    TAILQ_HEAD(bindings_head, binding_t) bindings;
     position_t position;
     int verbose;
     struct xcb_color_strings_t colors;

i3bar/src/config.c

@@ -20,7 +20,7 @@
 #include "common.h"
 
 static char *cur_key;
-static bool parsing_mouse_commands;
+static bool parsing_bindings;
 
 /*
  * Parse a key.
@@ -35,14 +35,14 @@ static int config_map_key_cb(void *params_, const unsigned char *keyVal, size_t
     strncpy(cur_key, (const char *)keyVal, keyLen);
     cur_key[keyLen] = '\0';
 
-    if (strcmp(cur_key, "mouse_commands") == 0)
-        parsing_mouse_commands = true;
+    if (strcmp(cur_key, "bindings") == 0)
+        parsing_bindings = true;
 
     return 1;
 }
 
-static int config_end_map_cb(void *params_) {
-    parsing_mouse_commands = false;
+static int config_end_array_cb(void *params_) {
+    parsing_bindings = false;
     return 1;
 }
 
@@ -72,25 +72,27 @@ static int config_string_cb(void *params_, const unsigned char *val, size_t _len
     if (!strcmp(cur_key, "id") || !strcmp(cur_key, "socket_path"))
         return 1;
 
-    if (parsing_mouse_commands) {
-        int button = atoi(cur_key + sizeof("button") - 1);
-
-        mouse_command_t *current;
-        TAILQ_FOREACH(current, &(config.mouse_commands), commands) {
-            if (current->button == button) {
-                FREE(current->command);
-                sasprintf(&(current->command), "%.*s", len, val);
-                return 1;
-            }
+    if (parsing_bindings) {
+        if (strcmp(cur_key, "command") == 0) {
+            binding_t *binding = TAILQ_LAST(&(config.bindings), bindings_head);
+            if (binding == NULL) {
+                ELOG("There is no binding to put the current command onto. This is a bug in i3.\n");
+                return 0;
             }
 
-        mouse_command_t *command = scalloc(sizeof(mouse_command_t));
-        command->button = button;
-        sasprintf(&(command->command), "%.*s", len, val);
-        TAILQ_INSERT_TAIL(&(config.mouse_commands), command, commands);
+            if (binding->command != NULL) {
+                ELOG("The binding for input_code = %d already has a command. This is a bug in i3.\n", binding->input_code);
+                return 0;
+            }
+
+            sasprintf(&(binding->command), "%.*s", len, val);
             return 1;
         }
 
+        ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
+        return 0;
+    }
+
     if (!strcmp(cur_key, "mode")) {
         DLOG("mode = %.*s, len = %d\n", len, val, len);
         config.hide_on_modifier = (len == 4 && !strncmp((const char *)val, "dock", strlen("dock")) ? M_DOCK
@@ -268,12 +270,34 @@ static int config_boolean_cb(void *params_, int val) {
     return 0;
 }
 
+/*
+ * Parse an integer value
+ *
+ */
+static int config_integer_cb(void *params_, long long val) {
+    if (parsing_bindings) {
+        if (strcmp(cur_key, "input_code") == 0) {
+            binding_t *binding = scalloc(sizeof(binding_t));
+            binding->input_code = val;
+            TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
+
+            return 1;
+        }
+
+        ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
+        return 0;
+    }
+
+    return 0;
+}
+
 /* A datastructure to pass all these callbacks to yajl */
 static yajl_callbacks outputs_callbacks = {
     .yajl_null = config_null_cb,
     .yajl_boolean = config_boolean_cb,
+    .yajl_integer = config_integer_cb,
     .yajl_string = config_string_cb,
-    .yajl_end_map = config_end_map_cb,
+    .yajl_end_array = config_end_array_cb,
     .yajl_map_key = config_map_key_cb,
 };
 
@@ -286,7 +310,7 @@ void parse_config_json(char *json) {
     yajl_status state;
     handle = yajl_alloc(&outputs_callbacks, NULL, NULL);
 
-    TAILQ_INIT(&(config.mouse_commands));
+    TAILQ_INIT(&(config.bindings));
 
     state = yajl_parse(handle, (const unsigned char *)json, strlen(json));
 

i3bar/src/xcb.c

@@ -470,12 +470,12 @@ void handle_button(xcb_button_press_event_t *event) {
 
     /* If a custom command was specified for this mouse button, it overrides
      * the default behavior. */
-    mouse_command_t *command;
-    TAILQ_FOREACH(command, &(config.mouse_commands), commands) {
-        if (command->button != event->detail)
+    binding_t *binding;
+    TAILQ_FOREACH(binding, &(config.bindings), bindings) {
+        if (binding->input_code != event->detail)
             continue;
 
-        i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, command->command);
+        i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, binding->command);
         return;
     }
 

include/config.h

@@ -281,7 +281,7 @@ struct Barconfig {
         M_MOD5 = 7
     } modifier;
 
-    TAILQ_HEAD(mouse_commands_head, Mousecommand) mouse_commands;
+    TAILQ_HEAD(bar_bindings_head, Barbinding) bar_bindings;
 
     /** Bar position (bottom by default). */
     enum { P_BOTTOM = 0,
@@ -352,14 +352,14 @@ struct Barconfig {
  * clicking on the non-statusline part of i3bar.
  *
  */
-struct Mousecommand {
-    /** The button for this command (e.g., "button1") */
-    char *button;
+struct Barbinding {
+    /** The button to be used (e.g., 1 for "button1"). */
+    int input_code;
 
     /** The command which is to be executed for this button. */
     char *command;
 
-    TAILQ_ENTRY(Mousecommand) commands;
+    TAILQ_ENTRY(Barbinding) bindings;
 };
 
 /**

src/config_directives.c

@@ -530,38 +530,44 @@ CFGFUN(bar_modifier, const char *modifier) {
         current_bar.modifier = M_SHIFT;
 }
 
-static void bar_configure_mouse_command(const char *button, const char *command) {
-    if (strncasecmp(button, "button", sizeof("button") - 1) != 0) {
-        ELOG("unknown button \"%s\" for mouse command, ignoring.\n", button);
+static void bar_configure_binding(const char *button, const char *command) {
+    if (strncasecmp(button, "button", strlen("button")) != 0) {
+        ELOG("Bindings for a bar can only be mouse bindings, not \"%s\", ignoring.\n", button);
         return;
     }
 
-    struct Mousecommand *current;
-    TAILQ_FOREACH(current, &(current_bar.mouse_commands), commands) {
-        if (strcasecmp(current->button, button) == 0) {
+    int input_code = atoi(button + strlen("button"));
+    if (input_code < 1) {
+        ELOG("Button \"%s\" does not seem to be in format 'buttonX'.\n", button);
+        return;
+    }
+
+    struct Barbinding *current;
+    TAILQ_FOREACH(current, &(current_bar.bar_bindings), bindings) {
+        if (current->input_code == input_code) {
             ELOG("command for button %s was already specified, ignoring.\n", button);
             return;
         }
     }
 
-    struct Mousecommand *new_command = scalloc(sizeof(struct Mousecommand));
-    new_command->button = sstrdup(button);
-    new_command->command = sstrdup(command);
-    TAILQ_INSERT_TAIL(&(current_bar.mouse_commands), new_command, commands);
+    struct Barbinding *new_binding = scalloc(sizeof(struct Barbinding));
+    new_binding->input_code = input_code;
+    new_binding->command = sstrdup(command);
+    TAILQ_INSERT_TAIL(&(current_bar.bar_bindings), new_binding, bindings);
 }
 
 CFGFUN(bar_wheel_up_cmd, const char *command) {
     ELOG("'wheel_up_cmd' is deprecated. Please us 'bindsym button4 %s' instead.\n", command);
-    bar_configure_mouse_command("button4", command);
+    bar_configure_binding("button4", command);
 }
 
 CFGFUN(bar_wheel_down_cmd, const char *command) {
     ELOG("'wheel_down_cmd' is deprecated. Please us 'bindsym button5 %s' instead.\n", command);
-    bar_configure_mouse_command("button5", command);
+    bar_configure_binding("button5", command);
 }
 
 CFGFUN(bar_bindsym, const char *button, const char *command) {
-    bar_configure_mouse_command(button, command);
+    bar_configure_binding(button, command);
 }
 
 CFGFUN(bar_position, const char *position) {
@@ -636,7 +642,7 @@ CFGFUN(bar_strip_workspace_numbers, const char *value) {
 }
 
 CFGFUN(bar_start) {
-    TAILQ_INIT(&(current_bar.mouse_commands));
+    TAILQ_INIT(&(current_bar.bar_bindings));
 }
 
 CFGFUN(bar_finish) {

src/ipc.c

@@ -469,17 +469,26 @@ void dump_node(yajl_gen gen, struct Con *con, bool inplace_restart) {
     y(map_close);
 }
 
-static void dump_mouse_commands(yajl_gen gen, Barconfig *config) {
-    ystr("mouse_commands");
+static void dump_bar_bindings(yajl_gen gen, Barconfig *config) {
+    if (TAILQ_EMPTY(&(config->bar_bindings)))
+        return;
+
+    ystr("bindings");
+    y(array_open);
+
+    struct Barbinding *current;
+    TAILQ_FOREACH(current, &(config->bar_bindings), bindings) {
         y(map_open);
 
-    struct Mousecommand *current;
-    TAILQ_FOREACH(current, &(config->mouse_commands), commands) {
-        ystr(current->button);
+        ystr("input_code");
+        y(integer, current->input_code);
+        ystr("command");
         ystr(current->command);
-    }
 
         y(map_close);
+    }
+
+    y(array_close);
 }
 
 static void dump_bar_config(yajl_gen gen, Barconfig *config) {
@@ -562,7 +571,7 @@ static void dump_bar_config(yajl_gen gen, Barconfig *config) {
             break;
     }
 
-    dump_mouse_commands(gen, config);
+    dump_bar_bindings(gen, config);
 
     ystr("position");
     if (config->position == P_BOTTOM)