Implement fullscreen global

include/sway/tree/container.h

@@ -25,6 +25,12 @@ enum sway_container_border {
 	B_CSD,
 };
 
+enum sway_fullscreen_mode {
+	FULLSCREEN_NONE,
+	FULLSCREEN_WORKSPACE,
+	FULLSCREEN_GLOBAL,
+};
+
 struct sway_root;
 struct sway_output;
 struct sway_workspace;
@@ -38,7 +44,7 @@ struct sway_container_state {
 	double x, y;
 	double width, height;
 
-	bool is_fullscreen;
+	enum sway_fullscreen_mode fullscreen_mode;
 
 	struct sway_workspace *workspace;
 	struct sway_container *parent;
@@ -85,7 +91,7 @@ struct sway_container {
 	double content_x, content_y;
 	int content_width, content_height;
 
-	bool is_fullscreen;
+	enum sway_fullscreen_mode fullscreen_mode;
 
 	enum sway_container_border border;
 
@@ -249,7 +255,13 @@ bool container_has_urgent_child(struct sway_container *container);
  */
 void container_end_mouse_operation(struct sway_container *container);
 
-void container_set_fullscreen(struct sway_container *container, bool enable);
+void container_set_fullscreen(struct sway_container *con,
+		enum sway_fullscreen_mode mode);
+
+/**
+ * Convenience function.
+ */
+void container_fullscreen_disable(struct sway_container *con);
 
 /**
  * Return true if the container is floating, or a child of a floating split

include/sway/tree/root.h

@@ -35,6 +35,8 @@ struct sway_root {
 	// For when there's no connected outputs
 	struct sway_output *noop_output;
 
+	struct sway_container *fullscreen_global;
+
 	struct {
 		struct wl_signal new_node;
 	} events;

sway/commands/focus.c

@@ -89,19 +89,23 @@ static struct sway_node *get_node_in_output_direction(
 
 static struct sway_node *node_get_in_direction(struct sway_container *container,
 		struct sway_seat *seat, enum wlr_direction dir) {
-	if (container->is_fullscreen) {
+	struct sway_container *wrap_candidate = NULL;
+	struct sway_container *current = container;
+	while (current) {
+		if (current->fullscreen_mode == FULLSCREEN_WORKSPACE) {
 			// Fullscreen container with a direction - go straight to outputs
-		struct sway_output *output = container->workspace->output;
+			struct sway_output *output = current->workspace->output;
-		struct sway_output *new_output = output_get_in_direction(output, dir);
+			struct sway_output *new_output =
+				output_get_in_direction(output, dir);
 			if (!new_output) {
 				return NULL;
 			}
 			return get_node_in_output_direction(new_output, dir);
 		}
+		if (current->fullscreen_mode == FULLSCREEN_GLOBAL) {
+			return NULL;
+		}
 
-	struct sway_container *wrap_candidate = NULL;
-	struct sway_container *current = container;
-	while (current) {
 		bool can_move = false;
 		int desired;
 		int idx = container_sibling_index(current);
@@ -227,7 +231,7 @@ static struct cmd_results *focus_output(struct sway_seat *seat,
 static struct cmd_results *focus_parent(void) {
 	struct sway_seat *seat = config->handler_context.seat;
 	struct sway_container *con = config->handler_context.container;
-	if (!con || con->is_fullscreen) {
+	if (!con || con->fullscreen_mode) {
 		return cmd_results_new(CMD_SUCCESS, NULL);
 	}
 	struct sway_node *parent = node_get_parent(&con->node);

sway/commands/fullscreen.c

@@ -1,3 +1,4 @@
+#include <strings.h>
 #include "log.h"
 #include "sway/commands.h"
 #include "sway/config.h"
@@ -7,9 +8,10 @@
 #include "sway/tree/workspace.h"
 #include "util.h"
 
+// fullscreen [enable|disable|toggle] [global]
 struct cmd_results *cmd_fullscreen(int argc, char **argv) {
 	struct cmd_results *error = NULL;
-	if ((error = checkarg(argc, "fullscreen", EXPECTED_AT_MOST, 1))) {
+	if ((error = checkarg(argc, "fullscreen", EXPECTED_AT_MOST, 2))) {
 		return error;
 	}
 	if (!root->outputs->length) {
@@ -23,20 +25,38 @@ struct cmd_results *cmd_fullscreen(int argc, char **argv) {
 		return cmd_results_new(CMD_FAILURE,
 				"Can't fullscreen an empty workspace");
 	}
-	if (node->type == N_WORKSPACE) {
+
+	bool is_fullscreen = container &&
+		container->fullscreen_mode != FULLSCREEN_NONE;
+	bool global = false;
+	bool enable = !is_fullscreen;
+
+	if (argc >= 1) {
+		if (strcasecmp(argv[0], "global") == 0) {
+			global = true;
+		} else {
+			enable = parse_boolean(argv[0], is_fullscreen);
+		}
+	}
+
+	if (argc >= 2) {
+		global = strcasecmp(argv[1], "global") == 0;
+	}
+
+	if (enable && node->type == N_WORKSPACE) {
 		// Wrap the workspace's children in a container so we can fullscreen it
 		container = workspace_wrap_children(workspace);
 		workspace->layout = L_HORIZ;
 		seat_set_focus_container(config->handler_context.seat, container);
 	}
-	bool enable = !container->is_fullscreen;
 
-	if (argc) {
+	enum sway_fullscreen_mode mode = FULLSCREEN_NONE;
-		enable = parse_boolean(argv[0], container->is_fullscreen);
+	if (enable) {
+		mode = global ? FULLSCREEN_GLOBAL : FULLSCREEN_WORKSPACE;
 	}
 
-	container_set_fullscreen(container, enable);
+	container_set_fullscreen(container, mode);
-	arrange_workspace(workspace);
+	arrange_root();
 
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }

sway/commands/move.c

@@ -191,7 +191,7 @@ static void container_move_to_workspace(struct sway_container *container,
 		workspace_add_floating(workspace, container);
 		container_handle_fullscreen_reparent(container);
 		// If changing output, center it within the workspace
-		if (old_output != workspace->output && !container->is_fullscreen) {
+		if (old_output != workspace->output && !container->fullscreen_mode) {
 			container_floating_move_to_center(container);
 		}
 	} else {
@@ -276,7 +276,7 @@ static void workspace_rejigger(struct sway_workspace *ws,
 static bool container_move_in_direction(struct sway_container *container,
 		enum wlr_direction move_dir) {
 	// If moving a fullscreen view, only consider outputs
-	if (container->is_fullscreen) {
+	if (container->fullscreen_mode == FULLSCREEN_WORKSPACE) {
 		struct sway_output *new_output =
 			output_get_in_direction(container->workspace->output, move_dir);
 		if (!new_output) {
@@ -286,6 +286,9 @@ static bool container_move_in_direction(struct sway_container *container,
 		container_move_to_workspace(container, ws);
 		return true;
 	}
+	if (container->fullscreen_mode == FULLSCREEN_GLOBAL) {
+		return false;
+	}
 
 	// If container is in a split container by itself, move out of the split
 	if (container->parent) {
@@ -309,13 +312,19 @@ static bool container_move_in_direction(struct sway_container *container,
 		int index = list_find(siblings, current);
 		int desired = index + offs;
 
+		// Don't allow containers to move out of their
+		// fullscreen or floating parent
+		if (current->fullscreen_mode || container_is_floating(current)) {
+			return false;
+		}
+
 		if (is_parallel(layout, move_dir)) {
 			if (desired == -1 || desired == siblings->length) {
 				if (current->parent == container->parent) {
 					current = current->parent;
 					continue;
 				} else {
-					// Special case
+					// Reparenting
 					if (current->parent) {
 						container_insert_child(current->parent, container,
 								index + (offs < 0 ? 0 : 1));
@@ -334,13 +343,6 @@ static bool container_move_in_direction(struct sway_container *container,
 		}
 
 		current = current->parent;
-
-		// Don't allow containers to move out of their
-		// fullscreen or floating parent
-		if (current &&
-				(current->is_fullscreen || container_is_floating(current))) {
-			return false;
-		}
 	}
 
 	// Maybe rejigger the workspace
@@ -563,10 +565,14 @@ static struct cmd_results *cmd_move_container(int argc, char **argv) {
 	}
 
 	// arrange windows
+	if (root->fullscreen_global) {
+		arrange_root();
+	} else {
 		if (old_ws && !old_ws->node.destroying) {
 			arrange_workspace(old_ws);
 		}
 		arrange_node(node_get_parent(destination));
+	}
 
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }
@@ -658,7 +664,7 @@ static struct cmd_results *cmd_move_in_direction(
 				"Cannot move a hidden scratchpad container");
 	}
 	if (container_is_floating(container)) {
-		if (container->is_fullscreen) {
+		if (container->fullscreen_mode) {
 			return cmd_results_new(CMD_FAILURE,
 					"Cannot move fullscreen floating container");
 		}
@@ -690,10 +696,14 @@ static struct cmd_results *cmd_move_in_direction(
 
 	struct sway_workspace *new_ws = container->workspace;
 
+	if (root->fullscreen_global) {
+		arrange_root();
+	} else {
 		arrange_workspace(old_ws);
 		if (new_ws != old_ws) {
 			arrange_workspace(new_ws);
 		}
+	}
 
 	if (container->view) {
 		ipc_event_window(container, "move");

sway/commands/split.c

@@ -26,7 +26,11 @@ static struct cmd_results *do_split(int layout) {
 		container_flatten(con->parent->parent);
 	}
 
+	if (root->fullscreen_global) {
+		arrange_root();
+	} else {
 		arrange_workspace(ws);
+	}
 
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }

sway/commands/swap.c

@@ -77,6 +77,11 @@ static void swap_focus(struct sway_container *con1,
 	} else {
 		seat_set_focus_container(seat, focus);
 	}
+
+	if (root->fullscreen_global) {
+		seat_set_focus(seat,
+				seat_get_focus_inactive(seat, &root->fullscreen_global->node));
+	}
 }
 
 static void container_swap(struct sway_container *con1,
@@ -98,13 +103,13 @@ static void container_swap(struct sway_container *con1,
 	sway_log(SWAY_DEBUG, "Swapping containers %zu and %zu",
 			con1->node.id, con2->node.id);
 
-	bool fs1 = con1->is_fullscreen;
+	enum sway_fullscreen_mode fs1 = con1->fullscreen_mode;
-	bool fs2 = con2->is_fullscreen;
+	enum sway_fullscreen_mode fs2 = con2->fullscreen_mode;
 	if (fs1) {
-		container_set_fullscreen(con1, false);
+		container_fullscreen_disable(con1);
 	}
 	if (fs2) {
-		container_set_fullscreen(con2, false);
+		container_fullscreen_disable(con2);
 	}
 
 	struct sway_seat *seat = config->handler_context.seat;
@@ -136,10 +141,10 @@ static void container_swap(struct sway_container *con1,
 	}
 
 	if (fs1) {
-		container_set_fullscreen(con2, true);
+		container_set_fullscreen(con2, fs1);
 	}
 	if (fs2) {
-		container_set_fullscreen(con1, true);
+		container_set_fullscreen(con1, fs2);
 	}
 }
 
@@ -220,10 +225,14 @@ struct cmd_results *cmd_swap(int argc, char **argv) {
 
 	container_swap(current, other);
 
+	if (root->fullscreen_global) {
+		arrange_root();
+	} else {
 		arrange_node(node_get_parent(&current->node));
 		if (node_get_parent(&other->node) != node_get_parent(&current->node)) {
 			arrange_node(node_get_parent(&other->node));
 		}
+	}
 
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }

sway/commands/workspace.c

@@ -168,6 +168,11 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 					"Can't run this command while there's no outputs connected.");
 		}
 
+		if (root->fullscreen_global) {
+			return cmd_results_new(CMD_FAILURE, "workspace",
+				"Can't switch workspaces while fullscreen global");
+		}
+
 		bool no_auto_back_and_forth = false;
 		while (strcasecmp(argv[0], "--no-auto-back-and-forth") == 0) {
 			no_auto_back_and_forth = true;

sway/desktop/output.c

@@ -251,19 +251,29 @@ static void output_for_each_surface(struct sway_output *output,
 	};
 
 	struct sway_workspace *workspace = output_get_active_workspace(output);
-	if (workspace->current.fullscreen) {
+	struct sway_container *fullscreen_con = root->fullscreen_global;
-		for_each_surface_container_iterator(
+	if (fullscreen_con && fullscreen_con->scratchpad &&
-			workspace->current.fullscreen, &data);
+			!fullscreen_con->workspace) {
-		container_for_each_child(workspace->current.fullscreen,
+		fullscreen_con = NULL;
+	}
+	if (!fullscreen_con) {
+		fullscreen_con = workspace->current.fullscreen;
+	}
+	if (fullscreen_con) {
+		for_each_surface_container_iterator(fullscreen_con, &data);
+		container_for_each_child(fullscreen_con,
 			for_each_surface_container_iterator, &data);
+
+		// TODO: Show transient containers for fullscreen global
+		if (fullscreen_con == workspace->current.fullscreen) {
 			for (int i = 0; i < workspace->current.floating->length; ++i) {
 				struct sway_container *floater =
 					workspace->current.floating->items[i];
-			if (container_is_transient_for(floater,
+				if (container_is_transient_for(floater, fullscreen_con)) {
-					workspace->current.fullscreen)) {
 					for_each_surface_container_iterator(floater, &data);
 				}
 			}
+		}
 #if HAVE_XWAYLAND
 		output_unmanaged_for_each_surface(output, &root->xwayland_unmanaged,
 			iterator, user_data);

sway/desktop/render.c

@@ -985,7 +985,15 @@ void output_render(struct sway_output *output, struct timespec *when,
 		goto render_overlay;
 	}
 
-	struct sway_container *fullscreen_con = workspace->current.fullscreen;
+	struct sway_container *fullscreen_con = root->fullscreen_global;
+	if (fullscreen_con && fullscreen_con->scratchpad &&
+			!fullscreen_con->workspace) {
+		fullscreen_con = NULL;
+	}
+	if (!fullscreen_con) {
+		fullscreen_con = workspace->current.fullscreen;
+	}
+
 	if (fullscreen_con) {
 		float clear_color[] = {0.0f, 0.0f, 0.0f, 1.0f};
 

sway/desktop/transaction.c

@@ -134,7 +134,7 @@ static void copy_container_state(struct sway_container *container,
 	state->y = container->y;
 	state->width = container->width;
 	state->height = container->height;
-	state->is_fullscreen = container->is_fullscreen;
+	state->fullscreen_mode = container->fullscreen_mode;
 	state->parent = container->parent;
 	state->workspace = container->workspace;
 	state->border = container->border;

sway/desktop/xdg_shell.c

@@ -349,7 +349,7 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 
 	container_set_fullscreen(view->container, e->fullscreen);
 
-	arrange_workspace(view->container->workspace);
+	arrange_root();
 	transaction_commit_dirty();
 }
 

sway/desktop/xdg_shell_v6.c

@@ -342,7 +342,7 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 
 	container_set_fullscreen(view->container, e->fullscreen);
 
-	arrange_workspace(view->container->workspace);
+	arrange_root();
 	transaction_commit_dirty();
 }
 

sway/desktop/xwayland.c

@@ -453,7 +453,7 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 	}
 	container_set_fullscreen(view->container, xsurface->fullscreen);
 
-	arrange_workspace(view->container->workspace);
+	arrange_root();
 	transaction_commit_dirty();
 }
 

sway/input/cursor.c

@@ -90,6 +90,16 @@ struct sway_node *node_at_coords(
 	double ox = lx, oy = ly;
 	wlr_output_layout_output_coords(root->output_layout, wlr_output, &ox, &oy);
 
+	if (root->fullscreen_global) {
+		// Try fullscreen container
+		struct sway_container *con = tiling_container_at(
+				&root->fullscreen_global->node, lx, ly, surface, sx, sy);
+		if (con) {
+			return &con->node;
+		}
+		return NULL;
+	}
+
 	// find the focused workspace on the output for this seat
 	struct sway_workspace *ws = output_get_active_workspace(output);
 
@@ -659,7 +669,7 @@ void dispatch_cursor_button(struct sway_cursor *cursor,
 	// Handle moving a tiling container
 	if (config->tiling_drag && (mod_pressed || on_titlebar) &&
 			state == WLR_BUTTON_PRESSED && !is_floating_or_child &&
-			cont && !cont->is_fullscreen) {
+			cont && cont->fullscreen_mode == FULLSCREEN_NONE) {
 		struct sway_container *focus = seat_get_focused_container(seat);
 		bool focused = focus == cont || container_has_ancestor(focus, cont);
 		if (on_titlebar && !focused) {

sway/input/seat.c

@@ -753,6 +753,18 @@ void seat_set_focus(struct sway_seat *seat, struct sway_node *node) {
 			return;
 		}
 	}
+	// Deny setting focus to a workspace node when using fullscreen global
+	if (root->fullscreen_global && !container && new_workspace) {
+		return;
+	}
+	// Deny setting focus to a view which is hidden by a fullscreen global
+	if (root->fullscreen_global && container != root->fullscreen_global &&
+				!container_has_ancestor(container, root->fullscreen_global)) {
+		// Unless it's a transient container
+		if (!container_is_transient_for(container, root->fullscreen_global)) {
+			return;
+		}
+	}
 
 	struct sway_output *new_output = new_workspace->output;
 

sway/ipc-json.c

@@ -425,7 +425,9 @@ static void ipc_json_describe_container(struct sway_container *c, json_object *o
 		view_is_urgent(c->view) : container_has_urgent_child(c);
 	json_object_object_add(object, "urgent", json_object_new_boolean(urgent));
 	json_object_object_add(object, "sticky", json_object_new_boolean(c->is_sticky));
-	json_object_object_add(object, "fullscreen_mode", json_object_new_int(c->is_fullscreen));
+
+	json_object_object_add(object, "fullscreen_mode",
+			json_object_new_int(c->fullscreen_mode));
 
 	struct sway_node *parent = node_get_parent(&c->node);
 	struct wlr_box parent_box = {0, 0, 0, 0};

sway/sway.5.scd

@@ -134,9 +134,10 @@ They are expected to be used with *bindsym* or at runtime through *swaymsg*(1).
 *focus* mode\_toggle
 	Moves focus between the floating and tiled layers.
 
-*fullscreen* [enable|disable|toggle]
+*fullscreen* [enable|disable|toggle] [global]
 	Makes focused view fullscreen, non-fullscreen, or the opposite of what it
-	is now. If no argument is given, it does the same as _toggle_.
+	is now. If no argument is given, it does the same as _toggle_. If _global_
+	is specified, the view will be fullscreen across all outputs.
 
 *gaps* inner|outer|horizontal|vertical|top|right|bottom|left all|current
 set|plus|minus <amount>

sway/tree/arrange.c

@@ -261,11 +261,21 @@ void arrange_root(void) {
 	root->y = layout_box->y;
 	root->width = layout_box->width;
 	root->height = layout_box->height;
+
+	if (root->fullscreen_global) {
+		struct sway_container *fs = root->fullscreen_global;
+		fs->x = root->x;
+		fs->y = root->y;
+		fs->width = root->width;
+		fs->height = root->height;
+		arrange_container(fs);
+	} else {
 		for (int i = 0; i < root->outputs->length; ++i) {
 			struct sway_output *output = root->outputs->items[i];
 			arrange_output(output);
 		}
 	}
+}
 
 void arrange_node(struct sway_node *node) {
 	switch (node->type) {

sway/tree/container.c

@@ -92,7 +92,7 @@ void container_begin_destroy(struct sway_container *con) {
 	}
 	// The workspace must have the fullscreen pointer cleared so that the
 	// seat code can find an appropriate new focus.
-	if (con->is_fullscreen && con->workspace) {
+	if (con->fullscreen_mode == FULLSCREEN_WORKSPACE && con->workspace) {
 		con->workspace->fullscreen = NULL;
 	}
 	wl_signal_emit(&con->node.events.destroy, &con->node);
@@ -106,6 +106,10 @@ void container_begin_destroy(struct sway_container *con) {
 		root_scratchpad_remove_container(con);
 	}
 
+	if (con->fullscreen_mode == FULLSCREEN_GLOBAL) {
+		container_fullscreen_disable(con);
+	}
+
 	if (con->parent || con->workspace) {
 		container_detach(con);
 	}
@@ -840,15 +844,15 @@ void container_floating_move_to_center(struct sway_container *con) {
 		return;
 	}
 	struct sway_workspace *ws = con->workspace;
-	bool full = con->is_fullscreen;
+	enum sway_fullscreen_mode fullscreen_mode = con->fullscreen_mode;
-	if (full) {
+	if (fullscreen_mode) {
-		container_set_fullscreen(con, false);
+		container_fullscreen_disable(con);
 	}
 	double new_lx = ws->x + (ws->width - con->width) / 2;
 	double new_ly = ws->y + (ws->height - con->height) / 2;
 	container_floating_translate(con, new_lx - con->x, new_ly - con->y);
-	if (full) {
+	if (fullscreen_mode) {
-		container_set_fullscreen(con, true);
+		container_set_fullscreen(con, fullscreen_mode);
 	}
 }
 
@@ -877,59 +881,125 @@ static void set_fullscreen_iterator(struct sway_container *con, void *data) {
 	}
 }
 
-void container_set_fullscreen(struct sway_container *container, bool enable) {
+static void container_fullscreen_workspace(struct sway_container *con) {
-	if (container->is_fullscreen == enable) {
+	if (!sway_assert(con->fullscreen_mode == FULLSCREEN_NONE,
+				"Expected a non-fullscreen container")) {
 		return;
 	}
+	bool enable = true;
+	set_fullscreen_iterator(con, &enable);
+	container_for_each_child(con, set_fullscreen_iterator, &enable);
 
-	struct sway_workspace *workspace = container->workspace;
+	con->workspace->fullscreen = con;
-	if (enable && workspace->fullscreen) {
+	con->saved_x = con->x;
-		container_set_fullscreen(workspace->fullscreen, false);
+	con->saved_y = con->y;
+	con->saved_width = con->width;
+	con->saved_height = con->height;
+
+	struct sway_seat *seat;
+	struct sway_workspace *focus_ws;
+	wl_list_for_each(seat, &server.input->seats, link) {
+		focus_ws = seat_get_focused_workspace(seat);
+		if (focus_ws == con->workspace) {
+			seat_set_focus_container(seat, con);
+		}
 	}
 
-	set_fullscreen_iterator(container, &enable);
+	con->fullscreen_mode = FULLSCREEN_WORKSPACE;
-	container_for_each_child(container, set_fullscreen_iterator, &enable);
+	container_end_mouse_operation(con);
+	ipc_event_window(con, "fullscreen_mode");
+}
 
-	container->is_fullscreen = enable;
+static void container_fullscreen_global(struct sway_container *con) {
+	if (!sway_assert(con->fullscreen_mode == FULLSCREEN_NONE,
+				"Expected a non-fullscreen container")) {
+		return;
+	}
+	bool enable = true;
+	set_fullscreen_iterator(con, &enable);
+	container_for_each_child(con, set_fullscreen_iterator, &enable);
 
-	if (enable) {
+	root->fullscreen_global = con;
-		workspace->fullscreen = container;
+	con->saved_x = con->x;
-		container->saved_x = container->x;
+	con->saved_y = con->y;
-		container->saved_y = container->y;
+	con->saved_width = con->width;
-		container->saved_width = container->width;
+	con->saved_height = con->height;
-		container->saved_height = container->height;
 
 	struct sway_seat *seat;
-		struct sway_workspace *focus_ws;
 	wl_list_for_each(seat, &server.input->seats, link) {
-			focus_ws = seat_get_focused_workspace(seat);
+		struct sway_container *focus = seat_get_focused_container(seat);
-			if (focus_ws) {
+		if (focus && focus != con) {
-				if (focus_ws == workspace) {
+			seat_set_focus_container(seat, con);
-					seat_set_focus_container(seat, container);
 		}
 	}
+
+	con->fullscreen_mode = FULLSCREEN_GLOBAL;
+	container_end_mouse_operation(con);
+	ipc_event_window(con, "fullscreen_mode");
+}
+
+void container_fullscreen_disable(struct sway_container *con) {
+	if (!sway_assert(con->fullscreen_mode != FULLSCREEN_NONE,
+				"Expected a fullscreen container")) {
+		return;
+	}
+	bool enable = false;
+	set_fullscreen_iterator(con, &enable);
+	container_for_each_child(con, set_fullscreen_iterator, &enable);
+
+	if (container_is_floating(con)) {
+		con->x = con->saved_x;
+		con->y = con->saved_y;
+	}
+	con->width = con->saved_width;
+	con->height = con->saved_height;
+
+	if (con->fullscreen_mode == FULLSCREEN_WORKSPACE) {
+		con->workspace->fullscreen = NULL;
+		if (container_is_floating(con)) {
+			struct sway_output *output = container_floating_find_output(con);
+			if (con->workspace->output != output) {
+				container_floating_move_to_center(con);
 			}
-	} else {
-		workspace->fullscreen = NULL;
-		if (container_is_floating(container)) {
-			container->x = container->saved_x;
-			container->y = container->saved_y;
-			container->width = container->saved_width;
-			container->height = container->saved_height;
-			struct sway_output *output =
-				container_floating_find_output(container);
-			if (workspace->output != output) {
-				container_floating_move_to_center(container);
 		}
 	} else {
-			container->width = container->saved_width;
+		root->fullscreen_global = NULL;
-			container->height = container->saved_height;
 	}
+
+	con->fullscreen_mode = FULLSCREEN_NONE;
+	container_end_mouse_operation(con);
+	ipc_event_window(con, "fullscreen_mode");
 }
 
-	container_end_mouse_operation(container);
+void container_set_fullscreen(struct sway_container *con,
+		enum sway_fullscreen_mode mode) {
+	if (con->fullscreen_mode == mode) {
+		return;
+	}
 
-	ipc_event_window(container, "fullscreen_mode");
+	switch (mode) {
+	case FULLSCREEN_NONE:
+		container_fullscreen_disable(con);
+		break;
+	case FULLSCREEN_WORKSPACE:
+		if (root->fullscreen_global) {
+			container_fullscreen_disable(root->fullscreen_global);
+		}
+		if (con->workspace->fullscreen) {
+			container_fullscreen_disable(con->workspace->fullscreen);
+		}
+		container_fullscreen_workspace(con);
+		break;
+	case FULLSCREEN_GLOBAL:
+		if (root->fullscreen_global) {
+			container_fullscreen_disable(root->fullscreen_global);
+		}
+		if (con->fullscreen_mode == FULLSCREEN_WORKSPACE) {
+			container_fullscreen_disable(con);
+		}
+		container_fullscreen_global(con);
+		break;
+	}
 }
 
 bool container_is_floating_or_child(struct sway_container *container) {
@@ -941,7 +1011,7 @@ bool container_is_floating_or_child(struct sway_container *container) {
 
 bool container_is_fullscreen_or_child(struct sway_container *container) {
 	do {
-		if (container->is_fullscreen) {
+		if (container->fullscreen_mode) {
 			return true;
 		}
 		container = container->parent;
@@ -1111,12 +1181,12 @@ list_t *container_get_current_siblings(struct sway_container *container) {
 }
 
 void container_handle_fullscreen_reparent(struct sway_container *con) {
-	if (!con->is_fullscreen || !con->workspace ||
+	if (con->fullscreen_mode != FULLSCREEN_WORKSPACE || !con->workspace ||
 			con->workspace->fullscreen == con) {
 		return;
 	}
 	if (con->workspace->fullscreen) {
-		container_set_fullscreen(con->workspace->fullscreen, false);
+		container_fullscreen_disable(con->workspace->fullscreen);
 	}
 	con->workspace->fullscreen = con;
 
@@ -1171,9 +1241,12 @@ void container_add_child(struct sway_container *parent,
 }
 
 void container_detach(struct sway_container *child) {
-	if (child->is_fullscreen) {
+	if (child->fullscreen_mode == FULLSCREEN_WORKSPACE) {
 		child->workspace->fullscreen = NULL;
 	}
+	if (child->fullscreen_mode == FULLSCREEN_GLOBAL) {
+		root->fullscreen_global = NULL;
+	}
 
 	struct sway_container *old_parent = child->parent;
 	struct sway_workspace *old_workspace = child->workspace;
@@ -1387,4 +1460,3 @@ void container_raise_floating(struct sway_container *con) {
 		node_set_dirty(&floater->workspace->node);
 	}
 }
-

sway/tree/root.c

@@ -101,7 +101,10 @@ void root_scratchpad_show(struct sway_container *con) {
 	// If the current con or any of its parents are in fullscreen mode, we
 	// first need to disable it before showing the scratchpad con.
 	if (new_ws->fullscreen) {
-		container_set_fullscreen(new_ws->fullscreen, false);
+		container_fullscreen_disable(new_ws->fullscreen);
+	}
+	if (root->fullscreen_global) {
+		container_fullscreen_disable(root->fullscreen_global);
 	}
 
 	// Show the container

sway/tree/view.c

@@ -203,12 +203,18 @@ void view_autoconfigure(struct sway_view *view) {
 	}
 	struct sway_output *output = con->workspace->output;
 
-	if (con->is_fullscreen) {
+	if (con->fullscreen_mode == FULLSCREEN_WORKSPACE) {
 		con->content_x = output->lx;
 		con->content_y = output->ly;
 		con->content_width = output->width;
 		con->content_height = output->height;
 		return;
+	} else if (con->fullscreen_mode == FULLSCREEN_GLOBAL) {
+		con->content_x = root->x;
+		con->content_y = root->y;
+		con->content_width = root->width;
+		con->content_height = root->height;
+		return;
 	}
 
 	struct sway_workspace *ws = view->container->workspace;
@@ -648,7 +654,10 @@ void view_unmap(struct sway_view *view) {
 		workspace_consider_destroy(ws);
 	}
 
-	if (ws && !ws->node.destroying) {
+	if (root->fullscreen_global) {
+		// Container may have been a child of the root fullscreen container
+		arrange_root();
+	} else if (ws && !ws->node.destroying) {
 		arrange_workspace(ws);
 		workspace_detect_urgent(ws);
 	}
@@ -1008,15 +1017,12 @@ bool view_is_visible(struct sway_view *view) {
 		con = con->parent;
 	}
 	// Check view isn't hidden by another fullscreen view
-	if (workspace->fullscreen &&
+	struct sway_container *fs = root->fullscreen_global ?
-			!container_is_fullscreen_or_child(view->container)) {
+		root->fullscreen_global : workspace->fullscreen;
-		// However, if we're transient for the fullscreen view and we allow
+	if (fs && !container_is_fullscreen_or_child(view->container) &&
-		// "popups" during fullscreen then it might be visible
+			!container_is_transient_for(view->container, fs)) {
-		if (!container_is_transient_for(view->container,
-					workspace->fullscreen)) {
 		return false;
 	}
-	}
 	return true;
 }