From 54d6ba78c33b15480c75025f15893f006a2ca5d1 Mon Sep 17 00:00:00 2001
From: emersion <contact@emersion.fr>
Date: Fri, 8 Mar 2019 16:14:30 +0100
Subject: [PATCH] rootston: add output-management-v1 support

---
 include/rootston/desktop.h |  6 +++++-
 rootston/desktop.c         | 29 +++++++++++++++++++++++++++++
 rootston/output.c          | 20 ++++++++++++++++++++
 3 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/include/rootston/desktop.h b/include/rootston/desktop.h
index 81faba81..fdd3abe0 100644
--- a/include/rootston/desktop.h
+++ b/include/rootston/desktop.h
@@ -7,6 +7,7 @@
 #include <wlr/types/wlr_foreign_toplevel_management_v1.h>
 #include <wlr/types/wlr_gamma_control_v1.h>
 #include <wlr/types/wlr_gamma_control.h>
+#include <wlr/types/wlr_gtk_primary_selection.h>
 #include <wlr/types/wlr_idle_inhibit_v1.h>
 #include <wlr/types/wlr_idle.h>
 #include <wlr/types/wlr_input_inhibitor.h>
@@ -14,10 +15,10 @@
 #include <wlr/types/wlr_layer_shell_v1.h>
 #include <wlr/types/wlr_list.h>
 #include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_output_management_v1.h>
 #include <wlr/types/wlr_output.h>
 #include <wlr/types/wlr_pointer_gestures_v1.h>
 #include <wlr/types/wlr_presentation_time.h>
-#include <wlr/types/wlr_gtk_primary_selection.h>
 #include <wlr/types/wlr_relative_pointer_v1.h>
 #include <wlr/types/wlr_screencopy_v1.h>
 #include <wlr/types/wlr_screenshooter.h>
@@ -69,6 +70,7 @@ struct roots_desktop {
 	struct wlr_foreign_toplevel_manager_v1 *foreign_toplevel_manager_v1;
 	struct wlr_relative_pointer_manager_v1 *relative_pointer_manager;
 	struct wlr_pointer_gestures_v1 *pointer_gestures;
+	struct wlr_output_manager_v1 *output_manager_v1;
 
 	struct wl_listener new_output;
 	struct wl_listener layout_change;
@@ -81,6 +83,8 @@ struct roots_desktop {
 	struct wl_listener input_inhibit_deactivate;
 	struct wl_listener virtual_keyboard_new;
 	struct wl_listener pointer_constraint;
+	struct wl_listener output_manager_apply;
+	struct wl_listener output_manager_test;
 
 #if WLR_HAS_XWAYLAND
 	struct wlr_xwayland *xwayland;
diff --git a/rootston/desktop.c b/rootston/desktop.c
index b0530ea1..35962cbb 100644
--- a/rootston/desktop.c
+++ b/rootston/desktop.c
@@ -294,6 +294,26 @@ static void handle_pointer_constraint(struct wl_listener *listener,
 	}
 }
 
+static void handle_output_manager_apply(struct wl_listener *listener,
+		void *data) {
+	struct roots_desktop *desktop =
+		wl_container_of(listener, desktop, output_manager_apply);
+	struct wlr_output_configuration_v1 *config = data;
+	(void)config;
+	wlr_log(WLR_DEBUG, "APPLY"); // TODO
+}
+
+static void handle_output_manager_test(struct wl_listener *listener,
+		void *data) {
+	struct roots_desktop *desktop =
+		wl_container_of(listener, desktop, output_manager_test);
+	struct wlr_output_configuration_v1 *config = data;
+
+	// TODO: implement test-only mode
+	wlr_output_configuration_v1_send_succeeded(config);
+	wlr_output_configuration_v1_destroy(config);
+}
+
 struct roots_desktop *desktop_create(struct roots_server *server,
 		struct roots_config *config) {
 	wlr_log(WLR_DEBUG, "Initializing roots desktop");
@@ -457,6 +477,15 @@ struct roots_desktop *desktop_create(struct roots_server *server,
 	desktop->pointer_gestures =
 		wlr_pointer_gestures_v1_create(server->wl_display);
 
+	desktop->output_manager_v1 =
+		wlr_output_manager_v1_create(server->wl_display);
+	desktop->output_manager_apply.notify = handle_output_manager_apply;
+	wl_signal_add(&desktop->output_manager_v1->events.apply,
+		&desktop->output_manager_apply);
+	desktop->output_manager_test.notify = handle_output_manager_test;
+	wl_signal_add(&desktop->output_manager_v1->events.test,
+		&desktop->output_manager_test);
+
 	wlr_primary_selection_v1_device_manager_create(server->wl_display);
 	wlr_data_control_manager_v1_create(server->wl_display);
 
diff --git a/rootston/output.c b/rootston/output.c
index 3edd07b0..0f684c85 100644
--- a/rootston/output.c
+++ b/rootston/output.c
@@ -424,11 +424,27 @@ static void set_mode(struct wlr_output *output,
 	}
 }
 
+static void update_output_manager_config(struct roots_desktop *desktop) {
+	struct wlr_output_configuration_v1 *config =
+		wlr_output_configuration_v1_create();
+
+	struct roots_output *output;
+	wl_list_for_each(output, &desktop->outputs, link) {
+		struct wlr_output_configuration_head_v1 *head =
+			wlr_output_configuration_head_v1_create(config, output->wlr_output);
+		(void)head;
+	}
+
+	wlr_output_manager_v1_set_configuration(desktop->output_manager_v1, config);
+}
+
 static void output_destroy(struct roots_output *output) {
 	// TODO: cursor
 	//example_config_configure_cursor(sample->config, sample->cursor,
 	//	sample->compositor);
 
+	struct roots_desktop *desktop = output->desktop;
+
 	wl_list_remove(&output->link);
 	wl_list_remove(&output->destroy.link);
 	wl_list_remove(&output->mode.link);
@@ -437,6 +453,8 @@ static void output_destroy(struct roots_output *output) {
 	wl_list_remove(&output->damage_frame.link);
 	wl_list_remove(&output->damage_destroy.link);
 	free(output);
+
+	update_output_manager_config(desktop);
 }
 
 static void output_handle_destroy(struct wl_listener *listener, void *data) {
@@ -579,4 +597,6 @@ void handle_new_output(struct wl_listener *listener, void *data) {
 
 	arrange_layers(output);
 	output_damage_whole(output);
+
+	update_output_manager_config(desktop);
 }