ipc: add binding event

1 files changed, 76 insertions, 0 deletions

diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index 72031e24..8fceafa2 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -3,12 +3,18 @@
 // Any value will hide SOCK_CLOEXEC on FreeBSD (__BSD_VISIBLE=0)
 #define _XOPEN_SOURCE 700
 #endif
+#ifdef __linux__
+#include <linux/input-event-codes.h>
+#elif __FreeBSD__
+#include <dev/evdev/input-event-codes.h>
+#endif
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <json-c/json.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
@@ -28,6 +34,7 @@
 #include "sway/tree/view.h"
 #include "list.h"
 #include "log.h"
+#include "util.h"
 
 static int ipc_socket = -1;
 static struct wl_event_source *ipc_event_source =  NULL;
@@ -367,6 +374,75 @@ void ipc_event_shutdown(const char *reason) {
         json_object_put(json);
 }
 
+void ipc_event_binding(struct sway_binding *binding) {
+        if (!ipc_has_event_listeners(IPC_EVENT_BINDING)) {
+                return;
+        }
+        wlr_log(WLR_DEBUG, "Sending binding event");
+
+        json_object *json_binding = json_object_new_object();
+        json_object_object_add(json_binding, "command", json_object_new_string(binding->command));
+
+        const char *names[10];
+        int len = get_modifier_names(names, binding->modifiers);
+        json_object *modifiers = json_object_new_array();
+        for (int i = 0; i < len; ++i) {
+                json_object_array_add(modifiers, json_object_new_string(names[i]));
+        }
+        json_object_object_add(json_binding, "event_state_mask", modifiers);
+
+        json_object *input_codes = json_object_new_array();
+        int input_code = 0;
+        json_object *symbols = json_object_new_array();
+        json_object *symbol = NULL;
+
+        if (binding->type == BINDING_KEYCODE) { // bindcode: populate input_codes
+                uint32_t keycode;
+                for (int i = 0; i < binding->keys->length; ++i) {
+                        keycode = *(uint32_t *)binding->keys->items[i];
+                        json_object_array_add(input_codes, json_object_new_int(keycode));
+                        if (i == 0) {
+                                input_code = keycode;
+                        }
+                }
+        } else { // bindsym/mouse: populate symbols
+                uint32_t keysym;
+                char buffer[64];
+                for (int i = 0; i < binding->keys->length; ++i) {
+                        keysym = *(uint32_t *)binding->keys->items[i];
+                        if (keysym >= BTN_LEFT && keysym <= BTN_LEFT + 8) {
+                                snprintf(buffer, 64, "button%u", keysym - BTN_LEFT + 1);
+                        } else if (xkb_keysym_get_name(keysym, buffer, 64) < 0) {
+                                continue;
+                        }
+
+                        json_object *str = json_object_new_string(buffer);
+                        if (i == 0) {
+                                // str is owned by both symbol and symbols. Make sure
+                                // to bump the ref count.
+                                json_object_array_add(symbols, json_object_get(str));
+                                symbol = str;
+                        } else {
+                                json_object_array_add(symbols, str);
+                        }
+                }
+        }
+
+        json_object_object_add(json_binding, "input_codes", input_codes);
+        json_object_object_add(json_binding, "input_code", json_object_new_int(input_code));
+        json_object_object_add(json_binding, "symbols", symbols);
+        json_object_object_add(json_binding, "symbol", symbol);
+        json_object_object_add(json_binding, "input_type", binding->type == BINDING_MOUSE ?
+                        json_object_new_string("mouse") : json_object_new_string("keyboard"));
+
+        json_object *json = json_object_new_object();
+        json_object_object_add(json, "change", json_object_new_string("run"));
+        json_object_object_add(json, "binding", json_binding);
+        const char *json_string = json_object_to_json_string(json);
+        ipc_send_event(json_string, IPC_EVENT_BINDING);
+        json_object_put(json);
+}
+
 int ipc_client_handle_writable(int client_fd, uint32_t mask, void *data) {
         struct ipc_client *client = data;