Start to build out window management functions

sway/handlers.c

@@ -0,0 +1,32 @@
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wlc/wlc.h>
+#include "layout.h"
+#include "handlers.h"
+
+bool handle_output_created(wlc_handle output) {
+	return true;
+}
+
+void handle_output_destroyed(wlc_handle output) {
+}
+
+void handle_output_resolution_change(wlc_handle output, const struct wlc_size *from, const struct wlc_size *to) {
+}
+
+bool handle_view_created(wlc_handle view) {
+	printf("View created, focusing");
+	wlc_view_focus(view);
+	wlc_view_bring_to_front(view);
+	return true;
+}
+
+void handle_view_destroyed(wlc_handle view) {
+	printf("View destroyed");
+	wlc_view_focus(get_topmost(wlc_view_get_output(view), 0));
+	return true;
+}
+
+void handle_view_focus(wlc_handle view, bool focus) {
+	wlc_view_set_state(view, WLC_BIT_ACTIVATED, focus);
+}

sway/handlers.h

@@ -0,0 +1,15 @@
+#ifndef _SWAY_HANDLERS_H
+#define _SWAY_HANDLERS_H
+
+#include <stdbool.h>
+#include <wlc/wlc.h>
+
+bool handle_output_created(wlc_handle output);
+void handle_output_destroyed(wlc_handle output);
+void handle_output_resolution_change(wlc_handle output, const struct wlc_size *from, const struct wlc_size *to);
+
+bool handle_view_created(wlc_handle view);
+void handle_view_destroyed(wlc_handle view);
+void handle_view_focus(wlc_handle view, bool focus);
+
+#endif

sway/layout.c

@@ -0,0 +1,10 @@
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wlc/wlc.h>
+#include "layout.h"
+
+wlc_handle get_topmost(wlc_handle output, size_t offset) {
+   size_t memb;
+   const wlc_handle *views = wlc_output_get_views(output, &memb);
+   return (memb > 0 ? views[(memb - 1 + offset) % memb] : 0);
+}

sway/layout.h

@@ -0,0 +1,14 @@
+#ifndef _SWAY_LAYOUT_H
+#define _SWAY_LAYOUT_H
+
+#include <wlc/wlc.h>
+#include "list.h"
+
+struct sway_container {
+    wlc_handle output; // May be NULL
+    list_t children;
+};
+
+wlc_handle get_topmost(wlc_handle output, size_t offset);
+
+#endif

sway/main.c

@@ -3,6 +3,7 @@
 #include <stdbool.h>
 #include <wlc/wlc.h>
 #include "config.h"
+#include "handlers.h"
 
 struct sway_config *config;
 
@@ -27,7 +28,19 @@ void load_config() {
 int main(int argc, char **argv) {
 	load_config();
 
-	static struct wlc_interface interface = { };
+	static struct wlc_interface interface = {
+		.output = {
+			.created = handle_output_created,
+			.destroyed = handle_output_destroyed,
+			.resolution = handle_output_resolution_change
+		},
+		.view = {
+			.created = handle_view_created,
+			.destroyed = handle_view_destroyed,
+			.focus = handle_view_focus
+		}
+	};
+
 	if (!wlc_init(&interface, argc, argv)) {
 		return 1;
 	}