Initial work on window events

include/ipc-server.h

@@ -17,6 +17,10 @@ void ipc_event_barconfig_update(struct bar_config *bar);
  * Send IPC mode event to all listening clients
  */
 void ipc_event_mode(const char *mode);
+/**
+ * Send IPC window change event
+ */
+void ipc_event_window(swayc_t *window, const char *change);
 /**
  * Sends an IPC modifier event to all listening clients.  The modifier event
  * includes a key 'change' with the value of state and a key 'modifier' with

sway/commands.c

@@ -679,6 +679,7 @@ static struct cmd_results *cmd_floating(int argc, char **argv) {
 		view->width = view->height = 0;
 		arrange_windows(swayc_active_workspace(), -1, -1);
 		remove_view_from_scratchpad(view);
+		ipc_event_window(view, "floating");
 	}
 	set_focused_container(view);
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
@@ -2495,6 +2496,7 @@ static struct cmd_results *cmd_fullscreen(int argc, char **argv) {
 		arrange_windows(container, -1, -1);
 		workspace->fullscreen = NULL;
 	}
+	ipc_event_window(container, "fullscreen_mode");
 
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }

sway/extensions.c

@@ -8,6 +8,7 @@
 #include "log.h"
 #include "input_state.h"
 #include "extensions.h"
+#include "ipc-server.h"
 
 struct desktop_shell_state desktop_shell;
 
@@ -128,6 +129,7 @@ static void set_lock_surface(struct wl_client *client, struct wl_resource *resou
 		}
 		wlc_view_set_state(view->handle, WLC_BIT_FULLSCREEN, true);
 		workspace->fullscreen = view;
+		ipc_event_window(view, "fullscreen_mode");
 		desktop_shell.is_locked = true;
 		// reset input state
 		input_init();

sway/focus.c

@@ -118,6 +118,10 @@ bool set_focused_container(swayc_t *c) {
 		c = focused;
 	}
 
+	if (c->type == C_VIEW) {
+		// dispatch a window event
+		ipc_event_window(c, "focus");
+	}
 	// update container focus from here to root, making necessary changes along
 	// the way
 	swayc_t *p = c;

sway/handlers.c

@@ -369,6 +369,7 @@ static bool handle_view_created(wlc_handle handle) {
 	suspend_workspace_cleanup = true;
 
 	if (newview) {
+		ipc_event_window(newview, "new");
 		set_focused_container(newview);
 		swayc_t *output = swayc_parent_by_type(newview, C_OUTPUT);
 		arrange_windows(output, -1, -1);
@@ -461,6 +462,7 @@ static void handle_view_destroyed(wlc_handle handle) {
 		}
 
 		arrange_windows(parent, -1, -1);
+		ipc_event_window(parent, "close");
 	} else {
 		// Is it unmanaged?
 		int i;
@@ -555,6 +557,7 @@ static void handle_view_properties_updated(wlc_handle view, uint32_t mask) {
 				} else if (c->border_type == B_NORMAL) {
 					update_view_border(c);
 				}
+				ipc_event_window(c, "title");
 			}
 		}
 	}

sway/ipc-server.c

@@ -339,6 +339,8 @@ void ipc_client_handle_command(struct ipc_client *client) {
 				client->subscribed_events |= IPC_EVENT_BARCONFIG_UPDATE;
 			} else if (strcmp(event_type, "mode") == 0) {
 				client->subscribed_events |= IPC_EVENT_MODE;
+			} else if (strcmp(event_type, "window") == 0) {
+				client->subscribed_events |= IPC_EVENT_WINDOW;
 			} else if (strcmp(event_type, "modifier") == 0) {
 				client->subscribed_events |= IPC_EVENT_MODIFIER;
 #if SWAY_BINDING_EVENT
@@ -556,6 +558,21 @@ void ipc_event_workspace(swayc_t *old, swayc_t *new, const char *change) {
 	json_object_put(obj); // free
 }
 
+void ipc_event_window(swayc_t *window, const char *change) {
+	json_object *obj = json_object_new_object();
+	json_object_object_add(obj, "change", json_object_new_string(change));
+	if (strcmp(change, "close") == 0 || !window) {
+		json_object_object_add(obj, "container", NULL);
+	} else {
+		json_object_object_add(obj, "container", ipc_json_describe_container(window));
+	}
+
+	const char *json_string = json_object_to_json_string(obj);
+	ipc_send_event(json_string, IPC_EVENT_WINDOW);
+
+	json_object_put(obj); // free
+}
+
 void ipc_event_barconfig_update(struct bar_config *bar) {
 	json_object *json = ipc_json_describe_bar_config(bar);
 	const char *json_string = json_object_to_json_string(json);

sway/layout.c

@@ -91,6 +91,7 @@ void add_floating(swayc_t *ws, swayc_t *child) {
 	if (!ws->focused) {
 		ws->focused = child;
 	}
+	ipc_event_window(child, "floating");
 }
 
 swayc_t *add_sibling(swayc_t *fixed, swayc_t *active) {
@@ -305,6 +306,7 @@ void move_container(swayc_t *container, enum movement_direction dir) {
 		parent = child->parent;
 	}
 	arrange_windows(parent->parent, -1, -1);
+	ipc_event_window(container, "move");
 	set_focused_container_for(parent->parent, container);
 }