click_events as documented at https://i3wm.org/docs/i3bar-protocol.html

1 files changed, 80 insertions, 2 deletions

diff --git a/swaybar/status_line.c b/swaybar/status_line.c
index 83e8ce2c..f0888273 100644
--- a/swaybar/status_line.c
+++ b/swaybar/status_line.c
@@ -27,6 +27,8 @@ struct {
 static char line[1024];
 static char line_rest[1024];
 
+static char event_buff[1024];
+
 static void free_status_block(void *item) {
         if (!item) {
                 return;
@@ -391,6 +393,67 @@ static int i3json_handle_fd(struct bar *bar) {
         return i3json_parse(bar);
 }
 
+bool status_line_mouse_event(struct bar *bar, int x, int y, uint32_t button) {
+        sway_log(L_DEBUG, "status_line_mouse_event.");
+        if (!bar->status->click_events) {
+                sway_log(L_DEBUG, "click_events are not enabled.");
+                return false;
+        }
+
+        if (bar->status->protocol == I3BAR) {
+                sway_log(L_DEBUG, "Sending click event.");
+
+                // find clicked block
+                struct status_block *clicked_block = NULL;
+                struct status_block *current_block = NULL;
+                int num_blocks = bar->status->block_line->length;
+
+                if (num_blocks == 0) {
+                        return false;
+                }
+                else {
+                        current_block = bar->status->block_line->items[0];
+                        if (x < current_block->x) {
+                                return false;
+                        }
+                }
+
+                for (int i = 0; i < num_blocks; i++) {
+                        current_block = bar->status->block_line->items[i];
+                        if (x < (current_block->x + current_block->width)) {
+                                clicked_block = current_block;
+                                break;
+                        }
+                }
+
+                if (!clicked_block || !clicked_block->name) {
+                        return false;
+                }
+
+                // event example {"name":"capture","instance":"label","button":1,"x":3431,"y":18}
+        
+                struct json_object *event_json = json_object_new_object();
+                json_object_object_add(event_json, "name", json_object_new_string(clicked_block->name));
+                if (clicked_block->instance) {
+                        json_object_object_add(event_json, "instance", json_object_new_string(clicked_block->instance));
+                }
+                json_object_object_add(event_json, "button", json_object_new_int(button));
+                json_object_object_add(event_json, "x", json_object_new_int(x));
+                json_object_object_add(event_json, "y", json_object_new_int(y));
+
+                int len = snprintf(event_buff, sizeof(event_buff), "%s,\n", json_object_to_json_string(event_json));
+
+                json_object_put(event_json);
+
+                if (len <= (int)sizeof(event_buff)) { // if not truncated
+                        write(bar->status_write_fd, event_buff, len);
+                        return true;
+                }
+        }
+
+        return false;
+}
+
 bool handle_status_line(struct bar *bar) {
         bool dirty = false;
 
@@ -418,15 +481,29 @@ bool handle_status_line(struct bar *bar) {
                 if (line[0] == '{') {
                         // detect i3bar json protocol
                         json_object *proto = json_tokener_parse(line);
-                        json_object *version;
                         if (proto) {
+
+                                json_object *version;
                                 if (json_object_object_get_ex(proto, "version", &version)
                                                         && json_object_get_int(version) == 1
                                 ) {
                                         sway_log(L_DEBUG, "Switched to i3bar protocol.");
                                         bar->status->protocol = I3BAR;
-                                        i3json_handle_data(bar, line_rest);
                                 }
+
+                                json_object *click_events;
+                                if (json_object_object_get_ex(proto, "click_events", &click_events)
+                                                        && json_object_get_boolean(click_events)
+                                ) {
+                                        sway_log(L_DEBUG, "Enabling click events.");
+                                        bar->status->click_events = true;
+
+                                        const char *events_array = "[\n";
+                                        write(bar->status_write_fd, events_array, strlen(events_array));
+                                }
+
+                                i3json_handle_data(bar, line_rest);
+
                                 json_object_put(proto);
                         }
                 }
@@ -441,6 +518,7 @@ struct status_line *init_status_line() {
         line->block_line = create_list();
         line->text_line = NULL;
         line->protocol = UNDEF;
+        line->click_events = false;
 
         return line;
 }