Merge pull request #390 from emersion/rootston-maximize

Maximize views in rootston

include/rootston/view.h

@@ -11,9 +11,10 @@ struct roots_wl_shell_surface {
 
 	// TODO: Maybe destroy listener should go in roots_view
 	struct wl_listener destroy;
-	struct wl_listener ping_timeout;
 	struct wl_listener request_move;
 	struct wl_listener request_resize;
+	struct wl_listener request_set_maximized;
+	struct wl_listener set_state;
 
 	struct wl_listener surface_commit;
 };
@@ -26,6 +27,7 @@ struct roots_xdg_surface_v6 {
 	struct wl_listener destroy;
 	struct wl_listener request_move;
 	struct wl_listener request_resize;
+	struct wl_listener request_maximize;
 };
 
 struct roots_xwayland_surface {
@@ -36,6 +38,7 @@ struct roots_xwayland_surface {
 	struct wl_listener request_configure;
 	struct wl_listener request_move;
 	struct wl_listener request_resize;
+	struct wl_listener request_maximize;
 	struct wl_listener map_notify;
 	struct wl_listener unmap_notify;
 };
@@ -48,8 +51,17 @@ enum roots_view_type {
 
 struct roots_view {
 	struct roots_desktop *desktop;
+
+	double x, y;
+	float rotation;
+
+	bool maximized;
+	struct {
 		double x, y;
+		uint32_t width, height;
 		float rotation;
+	} saved;
+
 	// TODO: Something for roots-enforced width/height
 	enum roots_view_type type;
 	union {
@@ -67,6 +79,7 @@ struct roots_view {
 #endif
 	};
 	struct wlr_surface *wlr_surface;
+
 	// TODO: This would probably be better as a field that's updated on a
 	// configure event from the xdg_shell
 	// If not then this should follow the typical type/impl pattern we use
@@ -77,6 +90,7 @@ struct roots_view {
 	void (*resize)(struct roots_view *view, uint32_t width, uint32_t height);
 	void (*move_resize)(struct roots_view *view, double x, double y,
 		uint32_t width, uint32_t height);
+	void (*maximize)(struct roots_view *view, bool maximized);
 	void (*close)(struct roots_view *view);
 };
 
@@ -86,6 +100,7 @@ void view_move(struct roots_view *view, double x, double y);
 void view_resize(struct roots_view *view, uint32_t width, uint32_t height);
 void view_move_resize(struct roots_view *view, double x, double y,
 	uint32_t width, uint32_t height);
+void view_maximize(struct roots_view *view, bool maximized);
 void view_close(struct roots_view *view);
 bool view_center(struct roots_view *view);
 void view_setup(struct roots_view *view);

include/wlr/types/wlr_wl_shell.h

@@ -42,6 +42,8 @@ struct wlr_wl_shell_popup_grab {
 enum wlr_wl_shell_surface_state {
 	WLR_WL_SHELL_SURFACE_STATE_NONE,
 	WLR_WL_SHELL_SURFACE_STATE_TOPLEVEL,
+	WLR_WL_SHELL_SURFACE_STATE_MAXIMIZED,
+	WLR_WL_SHELL_SURFACE_STATE_FULLSCREEN,
 	WLR_WL_SHELL_SURFACE_STATE_TRANSIENT,
 	WLR_WL_SHELL_SURFACE_STATE_POPUP,
 };

include/wlr/types/wlr_xdg_shell_v6.h

@@ -126,6 +126,8 @@ struct wlr_xdg_surface_v6 {
 		struct wl_signal ack_configure;
 		struct wl_signal ping_timeout;
 
+		struct wl_signal request_maximize;
+		struct wl_signal request_fullscreen;
 		struct wl_signal request_minimize;
 		struct wl_signal request_move;
 		struct wl_signal request_resize;

rootston/cursor.c

@@ -42,8 +42,15 @@ void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
 	input->mode = ROOTS_CURSOR_MOVE;
 	input->offs_x = cursor->x;
 	input->offs_y = cursor->y;
+	if (view->maximized) {
+		input->view_x = view->saved.x;
+		input->view_y = view->saved.y;
+	} else {
 		input->view_x = view->x;
 		input->view_y = view->y;
+	}
+
+	view_maximize(view, false);
 	wlr_seat_pointer_clear_focus(input->wl_seat);
 
 	struct wlr_xcursor *xcursor = get_move_xcursor(input->xcursor_theme);
@@ -57,13 +64,22 @@ void view_begin_resize(struct roots_input *input, struct wlr_cursor *cursor,
 	input->mode = ROOTS_CURSOR_RESIZE;
 	input->offs_x = cursor->x;
 	input->offs_y = cursor->y;
+	if (view->maximized) {
+		input->view_x = view->saved.x;
+		input->view_y = view->saved.y;
+		input->view_width = view->saved.width;
+		input->view_height = view->saved.height;
+	} else {
 		input->view_x = view->x;
 		input->view_y = view->y;
 		struct wlr_box size;
 		view_get_size(view, &size);
 		input->view_width = size.width;
 		input->view_height = size.height;
+	}
 	input->resize_edges = edges;
+
+	view_maximize(view, false);
 	wlr_seat_pointer_clear_focus(input->wl_seat);
 
 	struct wlr_xcursor *xcursor = get_resize_xcursor(input->xcursor_theme, edges);
@@ -78,6 +94,8 @@ void view_begin_rotate(struct roots_input *input, struct wlr_cursor *cursor,
 	input->offs_x = cursor->x;
 	input->offs_y = cursor->y;
 	input->view_rotation = view->rotation;
+
+	view_maximize(view, false);
 	wlr_seat_pointer_clear_focus(input->wl_seat);
 
 	struct wlr_xcursor *xcursor = get_rotate_xcursor(input->xcursor_theme);
@@ -102,7 +120,8 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
 			set_compositor_cursor = view_client != input->cursor_client;
 		}
 		if (set_compositor_cursor) {
-			struct wlr_xcursor *xcursor = get_default_xcursor(input->xcursor_theme);
+			struct wlr_xcursor *xcursor =
+				get_default_xcursor(input->xcursor_theme);
 			cursor_set_xcursor_image(input, xcursor->images[0]);
 			input->cursor_client = NULL;
 		}

rootston/desktop.c

@@ -106,6 +106,50 @@ void view_move_resize(struct roots_view *view, double x, double y,
 	view_resize(view, width, height);
 }
 
+void view_maximize(struct roots_view *view, bool maximized) {
+	if (view->maximized == maximized) {
+		return;
+	}
+
+	if (view->maximize) {
+		view->maximize(view, maximized);
+	}
+
+	if (!view->maximized && maximized) {
+		struct wlr_box view_box;
+		view_get_size(view, &view_box);
+
+		view->maximized = true;
+		view->saved.x = view->x;
+		view->saved.y = view->y;
+		view->saved.rotation = view->rotation;
+		view->saved.width = view_box.width;
+		view->saved.height = view_box.height;
+
+		double output_x, output_y;
+		wlr_output_layout_closest_point(view->desktop->layout, NULL,
+			view->x + (double)view_box.width/2,
+			view->y + (double)view_box.height/2,
+			&output_x, &output_y);
+		struct wlr_output *output = wlr_output_layout_output_at(
+			view->desktop->layout, output_x, output_y);
+		struct wlr_box *output_box =
+			wlr_output_layout_get_box(view->desktop->layout, output);
+
+		view_move_resize(view, output_box->x, output_box->y, output_box->width,
+			output_box->height);
+		view->rotation = 0;
+	}
+
+	if (view->maximized && !maximized) {
+		view->maximized = false;
+
+		view_move_resize(view, view->saved.x, view->saved.y, view->saved.width,
+			view->saved.height);
+		view->rotation = view->saved.rotation;
+	}
+}
+
 void view_close(struct roots_view *view) {
 	if (view->close) {
 		view->close(view);

rootston/wl_shell.c

@@ -49,6 +49,26 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
 	view_begin_resize(input, event->cursor, view, e->edges);
 }
 
+static void handle_request_set_maximized(struct wl_listener *listener,
+		void *data) {
+	struct roots_wl_shell_surface *roots_surface =
+		wl_container_of(listener, roots_surface, request_set_maximized);
+	struct roots_view *view = roots_surface->view;
+	//struct wlr_wl_shell_surface_set_maximized_event *e = data;
+	view_maximize(view, true);
+}
+
+static void handle_set_state(struct wl_listener *listener, void *data) {
+	struct roots_wl_shell_surface *roots_surface =
+		wl_container_of(listener, roots_surface, set_state);
+	struct roots_view *view = roots_surface->view;
+	struct wlr_wl_shell_surface *surface = view->wl_shell_surface;
+	if (view->maximized &&
+			surface->state != WLR_WL_SHELL_SURFACE_STATE_MAXIMIZED) {
+		view_maximize(view, false);
+	}
+}
+
 static void handle_surface_commit(struct wl_listener *listener, void *data) {
 	// TODO do we need to do anything here?
 }
@@ -60,6 +80,9 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&roots_surface->destroy.link);
 	wl_list_remove(&roots_surface->request_move.link);
 	wl_list_remove(&roots_surface->request_resize.link);
+	wl_list_remove(&roots_surface->request_set_maximized.link);
+	wl_list_remove(&roots_surface->set_state.link);
+	wl_list_remove(&roots_surface->surface_commit.link);
 	view_destroy(roots_surface->view);
 	free(roots_surface);
 }
@@ -93,6 +116,11 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 	roots_surface->request_resize.notify = handle_request_resize;
 	wl_signal_add(&surface->events.request_resize,
 		&roots_surface->request_resize);
+	roots_surface->request_set_maximized.notify = handle_request_set_maximized;
+	wl_signal_add(&surface->events.request_set_maximized,
+		&roots_surface->request_set_maximized);
+	roots_surface->set_state.notify = handle_set_state;
+	wl_signal_add(&surface->events.set_state, &roots_surface->set_state);
 	roots_surface->surface_commit.notify = handle_surface_commit;
 	wl_signal_add(&surface->surface->events.commit,
 		&roots_surface->surface_commit);

rootston/xdg_shell_v6.c

@@ -84,6 +84,16 @@ static void move_resize(struct roots_view *view, double x, double y,
 	wlr_xdg_toplevel_v6_set_size(surf, contrained_width, contrained_height);
 }
 
+static void maximize(struct roots_view *view, bool maximized) {
+	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
+	struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
+	if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
+	}
+
+	wlr_xdg_toplevel_v6_set_maximized(surface, maximized);
+}
+
 static void close(struct roots_view *view) {
 	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
 	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
@@ -118,8 +128,25 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
 	view_begin_resize(input, event->cursor, view, e->edges);
 }
 
+static void handle_request_maximize(struct wl_listener *listener, void *data) {
+	struct roots_xdg_surface_v6 *roots_xdg_surface =
+		wl_container_of(listener, roots_xdg_surface, request_maximize);
+	struct roots_view *view = roots_xdg_surface->view;
+	struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
+
+	if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
+	}
+
+	view_maximize(view, surface->toplevel_state->next.maximized);
+}
+
 static void handle_commit(struct wl_listener *listener, void *data) {
-	// TODO is there anything we need to do here?
+	//struct roots_xdg_surface_v6 *roots_xdg_surface =
+	//	wl_container_of(listener, roots_xdg_surface, commit);
+	//struct roots_view *view = roots_xdg_surface->view;
+	//struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
+	// TODO
 }
 
 static void handle_destroy(struct wl_listener *listener, void *data) {
@@ -164,6 +191,9 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	roots_surface->request_resize.notify = handle_request_resize;
 	wl_signal_add(&surface->events.request_resize,
 		&roots_surface->request_resize);
+	roots_surface->request_maximize.notify = handle_request_maximize;
+	wl_signal_add(&surface->events.request_maximize,
+		&roots_surface->request_maximize);
 
 	struct roots_view *view = calloc(1, sizeof(struct roots_view));
 	if (!view) {
@@ -178,6 +208,7 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	view->activate = activate;
 	view->resize = resize;
 	view->move_resize = move_resize;
+	view->maximize = maximize;
 	view->close = close;
 	view->desktop = desktop;
 	roots_surface->view = view;

rootston/xwayland.c

@@ -85,11 +85,22 @@ static void close(struct roots_view *view) {
 	wlr_xwayland_surface_close(view->desktop->xwayland, view->xwayland_surface);
 }
 
+static void maximize(struct roots_view *view, bool maximized) {
+	assert(view->type == ROOTS_XWAYLAND_VIEW);
+
+	wlr_xwayland_surface_set_maximized(view->desktop->xwayland,
+		view->xwayland_surface, maximized);
+}
+
 static void handle_destroy(struct wl_listener *listener, void *data) {
 	struct roots_xwayland_surface *roots_surface =
 		wl_container_of(listener, roots_surface, destroy);
 	view_teardown(roots_surface->view);
 	wl_list_remove(&roots_surface->destroy.link);
+	wl_list_remove(&roots_surface->request_configure.link);
+	wl_list_remove(&roots_surface->request_move.link);
+	wl_list_remove(&roots_surface->request_resize.link);
+	wl_list_remove(&roots_surface->request_maximize.link);
 	wl_list_remove(&roots_surface->map_notify.link);
 	wl_list_remove(&roots_surface->unmap_notify.link);
 	view_destroy(roots_surface->view);
@@ -161,6 +172,17 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
 	view_begin_resize(input, cursor, view, e->edges);
 }
 
+static void handle_request_maximize(struct wl_listener *listener, void *data) {
+	struct roots_xwayland_surface *roots_surface =
+		wl_container_of(listener, roots_surface, request_maximize);
+	struct roots_view *view = roots_surface->view;
+	struct wlr_xwayland_surface *xwayland_surface = view->xwayland_surface;
+
+	bool maximized = xwayland_surface->maximized_vert &&
+		xwayland_surface->maximized_horz;
+	view_maximize(view, maximized);
+}
+
 static void handle_map_notify(struct wl_listener *listener, void *data) {
 	struct roots_xwayland_surface *roots_surface =
 		wl_container_of(listener, roots_surface, map_notify);
@@ -202,24 +224,24 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	if (roots_surface == NULL) {
 		return;
 	}
+
 	roots_surface->destroy.notify = handle_destroy;
 	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
-
 	roots_surface->request_configure.notify = handle_request_configure;
 	wl_signal_add(&surface->events.request_configure,
 		&roots_surface->request_configure);
-
 	roots_surface->map_notify.notify = handle_map_notify;
 	wl_signal_add(&surface->events.map_notify, &roots_surface->map_notify);
-
 	roots_surface->unmap_notify.notify = handle_unmap_notify;
 	wl_signal_add(&surface->events.unmap_notify, &roots_surface->unmap_notify);
-
 	roots_surface->request_move.notify = handle_request_move;
 	wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
-
 	roots_surface->request_resize.notify = handle_request_resize;
-	wl_signal_add(&surface->events.request_resize, &roots_surface->request_resize);
+	wl_signal_add(&surface->events.request_resize,
+		&roots_surface->request_resize);
+	roots_surface->request_maximize.notify = handle_request_maximize;
+	wl_signal_add(&surface->events.request_maximize,
+		&roots_surface->request_maximize);
 
 	struct roots_view *view = calloc(1, sizeof(struct roots_view));
 	if (view == NULL) {
@@ -237,6 +259,7 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	view->resize = resize;
 	view->move = move;
 	view->move_resize = move_resize;
+	view->maximize = maximize;
 	view->close = close;
 	roots_surface->view = view;
 	wlr_list_add(desktop->views, view);

types/wlr_wl_shell.c

@@ -171,7 +171,6 @@ static void shell_surface_destroy_popup_state(
 	}
 }
 
-
 static void shell_surface_protocol_resize(struct wl_client *client,
 		struct wl_resource *resource, struct wl_resource *seat_resource,
 		uint32_t serial, enum wl_shell_surface_resize edges) {
@@ -287,9 +286,8 @@ static void shell_surface_protocol_set_fullscreen(struct wl_client *client,
 		output = wl_resource_get_user_data(output_resource);
 	}
 
-	if (surface->state == WLR_WL_SHELL_SURFACE_STATE_TOPLEVEL) {
+	shell_surface_set_state(surface, WLR_WL_SHELL_SURFACE_STATE_FULLSCREEN,
-		return;
+		NULL, NULL);
-	}
 
 	struct wlr_wl_shell_surface_set_fullscreen_event *event =
 		calloc(1, sizeof(struct wlr_wl_shell_surface_set_fullscreen_event));
@@ -377,9 +375,8 @@ static void shell_surface_protocol_set_maximized(struct wl_client *client,
 		output = wl_resource_get_user_data(output_resource);
 	}
 
-	if (surface->state == WLR_WL_SHELL_SURFACE_STATE_TOPLEVEL) {
+	shell_surface_set_state(surface, WLR_WL_SHELL_SURFACE_STATE_MAXIMIZED,
-		return;
+		NULL, NULL);
-	}
 
 	struct wlr_wl_shell_surface_set_maximized_event *event =
 		calloc(1, sizeof(struct wlr_wl_shell_surface_set_maximized_event));

types/wlr_xdg_shell_v6.c

@@ -664,24 +664,28 @@ static void xdg_toplevel_protocol_set_maximized(struct wl_client *client,
 		struct wl_resource *resource) {
 	struct wlr_xdg_surface_v6 *surface = wl_resource_get_user_data(resource);
 	surface->toplevel_state->next.maximized = true;
+	wl_signal_emit(&surface->events.request_maximize, surface);
 }
 
 static void xdg_toplevel_protocol_unset_maximized(struct wl_client *client,
 		struct wl_resource *resource) {
 	struct wlr_xdg_surface_v6 *surface = wl_resource_get_user_data(resource);
 	surface->toplevel_state->next.maximized = false;
+	wl_signal_emit(&surface->events.request_maximize, surface);
 }
 
 static void xdg_toplevel_protocol_set_fullscreen(struct wl_client *client,
 		struct wl_resource *resource, struct wl_resource *output_resource) {
 	struct wlr_xdg_surface_v6 *surface = wl_resource_get_user_data(resource);
 	surface->toplevel_state->next.fullscreen = true;
+	wl_signal_emit(&surface->events.request_fullscreen, surface);
 }
 
 static void xdg_toplevel_protocol_unset_fullscreen(struct wl_client *client,
 		struct wl_resource *resource) {
 	struct wlr_xdg_surface_v6 *surface = wl_resource_get_user_data(resource);
 	surface->toplevel_state->next.fullscreen = false;
+	wl_signal_emit(&surface->events.request_fullscreen, surface);
 }
 
 static void xdg_toplevel_protocol_set_minimized(struct wl_client *client,
@@ -1143,6 +1147,8 @@ static void xdg_shell_get_xdg_surface(struct wl_client *wl_client,
 	wl_list_init(&surface->configure_list);
 	wl_list_init(&surface->popups);
 
+	wl_signal_init(&surface->events.request_maximize);
+	wl_signal_init(&surface->events.request_fullscreen);
 	wl_signal_init(&surface->events.request_minimize);
 	wl_signal_init(&surface->events.request_move);
 	wl_signal_init(&surface->events.request_resize);

xwayland/xwm.c

@@ -823,31 +823,38 @@ static void xwm_handle_net_wm_state_message(struct wlr_xwm *xwm,
 	if (!xsurface) {
 		return;
 	}
+	if (client_message->format != 32) {
+		return;
+	}
 
-	int maximized = xsurface_is_maximized(xsurface);
+	bool fullscreen = xsurface->fullscreen;
+	bool maximized = xsurface_is_maximized(xsurface);
 
 	uint32_t action = client_message->data.data32[0];
-	uint32_t property = client_message->data.data32[1];
+	for (size_t i = 0; i < 2; ++i) {
+		uint32_t property = client_message->data.data32[1 + i];
 
 		if (property == xwm->atoms[_NET_WM_STATE_FULLSCREEN] &&
 				update_state(action, &xsurface->fullscreen)) {
 			xsurface_set_net_wm_state(xsurface);
+		} else if (property == xwm->atoms[_NET_WM_STATE_MAXIMIZED_VERT] &&
+				update_state(action, &xsurface->maximized_vert)) {
+			xsurface_set_net_wm_state(xsurface);
+		} else if (property == xwm->atoms[_NET_WM_STATE_MAXIMIZED_HORZ] &&
+				update_state(action, &xsurface->maximized_horz)) {
+			xsurface_set_net_wm_state(xsurface);
+		}
+	}
+	// client_message->data.data32[3] is the source indication
+	// all other values are set to 0
 
+	if (fullscreen != xsurface->fullscreen) {
 		if (xsurface->fullscreen) {
 			xsurface->saved_width = xsurface->width;
 			xsurface->saved_height = xsurface->height;
 		}
 
 		wl_signal_emit(&xsurface->events.request_fullscreen, xsurface);
-	} else {
-		if (property == xwm->atoms[_NET_WM_STATE_MAXIMIZED_VERT] &&
-				update_state(action, &xsurface->maximized_vert)) {
-			xsurface_set_net_wm_state(xsurface);
-		}
-
-		if (property == xwm->atoms[_NET_WM_STATE_MAXIMIZED_HORZ] &&
-				update_state(action, &xsurface->maximized_horz)) {
-			xsurface_set_net_wm_state(xsurface);
 	}
 
 	if (maximized != xsurface_is_maximized(xsurface)) {
@@ -859,7 +866,6 @@ static void xwm_handle_net_wm_state_message(struct wlr_xwm *xwm,
 		wl_signal_emit(&xsurface->events.request_maximize, xsurface);
 	}
 }
-}
 
 static void xwm_handle_client_message(struct wlr_xwm *xwm,
 		xcb_client_message_event_t *ev) {
@@ -1310,8 +1316,8 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *wlr_xwayland) {
 		xwm->atoms[_NET_ACTIVE_WINDOW],
 		xwm->atoms[_NET_WM_MOVERESIZE],
 		xwm->atoms[_NET_WM_STATE_FULLSCREEN],
-		xwm->atoms[_NET_WM_STATE_MAXIMIZED_HORZ],
 		xwm->atoms[_NET_WM_STATE_MAXIMIZED_VERT],
+		xwm->atoms[_NET_WM_STATE_MAXIMIZED_HORZ],
 	};
 	xcb_change_property(xwm->xcb_conn,
 		XCB_PROP_MODE_REPLACE,