Initial (awful) pass on xdg shell support

include/sway/container.h

@@ -11,6 +11,8 @@ typedef struct sway_container swayc_t;
 extern swayc_t root_container;
 extern swayc_t *current_focus;
 
+struct sway_view;
+
 /**
  * Different kinds of containers.
  *
@@ -27,14 +29,6 @@ enum swayc_types {
 	C_TYPES,
 };
 
-enum swayc_view_types {
-	V_WL_SHELL,
-	V_XDG_SHELL_V6,
-	V_XWAYLAND,
-	// Keep last
-	V_TYPES,
-};
-
 /**
  * Different ways to arrange a container.
  */
@@ -76,6 +70,7 @@ struct sway_container {
 
 	union {
 		struct sway_output *output;
+		struct sway_view *view;
 	} _handle;
 
 	/**
@@ -207,7 +202,7 @@ swayc_t *new_container(swayc_t *child, enum swayc_layouts layout);
  *
  * Pass in a sibling view, or a workspace to become this container's parent.
  */
-swayc_t *new_view(swayc_t *sibling, wlc_handle handle);
+swayc_t *new_view(swayc_t *sibling, struct sway_view *view);
 /**
  * Allocates a new floating view in the active workspace.
  */

include/sway/server.h

@@ -5,6 +5,7 @@
 #include <wlr/backend.h>
 #include <wlr/backend/session.h>
 #include <wlr/types/wlr_data_device_manager.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
 #include <wlr/render.h>
 // TODO WLR: make Xwayland optional
 #include <wlr/xwayland.h>
@@ -24,6 +25,9 @@ struct sway_server {
 	struct wl_listener output_add;
 	struct wl_listener output_remove;
 	struct wl_listener output_frame;
+
+	struct wlr_xdg_shell_v6 *xdg_shell_v6;
+	struct wl_listener xdg_shell_v6_surface;
 };
 
 struct sway_server server;
@@ -35,4 +39,6 @@ void server_run(struct sway_server *server);
 void output_add_notify(struct wl_listener *listener, void *data);
 void output_remove_notify(struct wl_listener *listener, void *data);
 
+void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data);
+
 #endif

include/sway/view.h

@@ -0,0 +1,56 @@
+#ifndef _SWAY_VIEW_H
+#define _SWAY_VIEW_H
+#include <wayland-server.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+
+struct sway_container;
+struct sway_view;
+
+struct sway_xdg_surface_v6 {
+	struct sway_view *view;
+
+	struct wl_listener commit;
+	struct wl_listener request_move;
+	struct wl_listener request_resize;
+	struct wl_listener request_maximize;
+};
+
+enum sway_view_type {
+	SWAY_WL_SHELL_VIEW,
+	SWAY_XDG_SHELL_V6_VIEW,
+	SWAY_XWAYLAND_VIEW,
+	// Keep last
+	SWAY_VIEW_TYPES,
+};
+
+enum sway_view_prop {
+	VIEW_PROP_TITLE,
+	VIEW_PROP_CLASS,
+	VIEW_PROP_INSTANCE,
+	VIEW_PROP_APP_ID,
+};
+
+/**
+ * sway_view is a state container for surfaces that are arranged in the sway
+ * tree (shell surfaces).
+ */
+struct sway_view {
+	struct wl_listener destroy;
+	enum sway_view_type type;
+	struct sway_container *swayc;
+
+	union {
+		struct wlr_xdg_surface_v6 *wlr_xdg_surface_v6;
+	};
+
+	union {
+		struct sway_xdg_surface_v6 *sway_xdg_surface_v6;
+	};
+
+	struct {
+		const char *(*get_prop)(struct sway_view *view,
+				enum sway_view_prop prop);
+	} iface;
+};
+
+#endif

sway/CMakeLists.txt

@@ -19,6 +19,7 @@ file(GLOB cmds
 
 add_executable(sway
     desktop/output.c
+    desktop/xdg_shell_v6.c
 
 	tree/container.c
 	tree/criteria.c

sway/config.c

@@ -932,6 +932,7 @@ void merge_output_config(struct output_config *dst, struct output_config *src) {
 
 static void invoke_swaybar(struct bar_config *bar) {
 	return; // TODO WLR
+	sway_log(L_DEBUG, "Invoking swaybar for bar id '%s'", bar->id);
 	// Pipe to communicate errors
 	int filedes[2];
 	if (pipe(filedes) == -1) {
@@ -1059,7 +1060,6 @@ void load_swaybars() {
 		if (bar->pid != 0) {
 			terminate_swaybar(bar->pid);
 		}
-		sway_log(L_DEBUG, "Invoking swaybar for bar id '%s'", bar->id);
 		invoke_swaybar(bar);
 	}
 

sway/desktop/xdg_shell_v6.c

@@ -0,0 +1,117 @@
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+#include "sway/commands.h"
+#include "sway/container.h"
+#include "sway/focus.h"
+#include "sway/ipc-server.h"
+#include "sway/server.h"
+#include "sway/view.h"
+#include "log.h"
+
+// TODO: move elsewhere
+static void temp_ws_cleanup() {
+	swayc_t *op, *ws;
+	int i = 0, j;
+	if (!root_container.children)
+		return;
+	while (i < root_container.children->length) {
+		op = root_container.children->items[i++];
+		if (!op->children)
+			continue;
+		j = 0;
+		while (j < op->children->length) {
+			ws = op->children->items[j++];
+			if (ws->children->length == 0 && ws->floating->length == 0 && ws != op->focused) {
+				if (destroy_workspace(ws)) {
+					j--;
+				}
+			}
+		}
+	}
+}
+
+// TODO: move elsewhere
+static swayc_t *move_focus_to_tiling(swayc_t *focused) {
+	if (focused->is_floating) {
+		if (focused->parent->children->length == 0) {
+			return focused->parent;
+		}
+		// TODO find a better way of doing this
+		// Or to focused container
+		return get_focused_container(focused->parent->children->items[0]);
+	}
+	return focused;
+}
+
+static const char *get_prop(struct sway_view *view, enum sway_view_prop prop) {
+	if (!sway_assert(view->type == SWAY_XDG_SHELL_V6_VIEW,
+				"xdg get_prop for non-xdg view!")) {
+		return NULL;
+	}
+	switch (prop) {
+	case VIEW_PROP_TITLE:
+		return view->wlr_xdg_surface_v6->title;
+	case VIEW_PROP_APP_ID:
+		return view->wlr_xdg_surface_v6->app_id;
+	default:
+		return NULL;
+	}
+}
+
+void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
+	struct sway_server *server = wl_container_of(
+			listener, server, xdg_shell_v6_surface);
+	struct wlr_xdg_surface_v6 *xdg_surface = data;
+
+	if (xdg_surface->role == WLR_XDG_SURFACE_V6_ROLE_POPUP) {
+		// TODO: popups
+		return;
+	}
+
+	sway_log(L_DEBUG, "New xdg_shell_v6 toplevel title='%s' app_id='%s'",
+			xdg_surface->title, xdg_surface->app_id);
+	wlr_xdg_surface_v6_ping(xdg_surface);
+
+	struct sway_xdg_surface_v6 *sway_surface =
+		calloc(1, sizeof(struct sway_xdg_surface_v6));
+	if (!sway_assert(sway_surface, "Failed to allocate surface!")) {
+		return;
+	}
+
+	struct sway_view *sway_view = calloc(1, sizeof(struct sway_view));
+	if (!sway_assert(sway_view, "Failed to allocate view!")) {
+		return;
+	}
+	sway_view->type = SWAY_XDG_SHELL_V6_VIEW;
+	sway_view->iface.get_prop = get_prop;
+	sway_surface->view = sway_view;
+	
+	// TODO:
+	// - Consolodate common logic between shells
+	// - Wire up listeners
+	// - Handle popups
+	// - Look up pid and open on appropriate workspace
+	// - Set new view to maximized so it behaves nicely
+	// - Criteria
+
+	suspend_workspace_cleanup = true;
+	//swayc_t *current_ws = swayc_active_workspace();
+	swayc_t *prev_focus = get_focused_container(&root_container);
+	swayc_t *focused = move_focus_to_tiling(prev_focus);
+
+	// TODO: fix new_view
+	swayc_t *view = new_view(focused, sway_view);
+	ipc_event_window(view, "new");
+	set_focused_container(view);
+
+	swayc_t *output = swayc_parent_by_type(view, C_OUTPUT);
+	arrange_windows(output, -1, -1);
+
+	swayc_t *workspace = swayc_parent_by_type(focused, C_WORKSPACE);
+	if (workspace && workspace->fullscreen) {
+		set_focused_container(workspace->fullscreen);
+	}
+	suspend_workspace_cleanup = false;
+	temp_ws_cleanup();
+}

sway/server.c

@@ -34,6 +34,11 @@ bool server_init(struct sway_server *server) {
 	wl_signal_add(&server->backend->events.output_remove,
 			&server->output_remove);
 
+	server->xdg_shell_v6 = wlr_xdg_shell_v6_create(server->wl_display);
+	wl_signal_add(&server->xdg_shell_v6->events.new_surface,
+		&server->xdg_shell_v6_surface);
+	server->xdg_shell_v6_surface.notify = handle_xdg_shell_v6_surface;
+
 	server->socket = wl_display_add_socket_auto(server->wl_display);
 	if (!sway_assert(server->socket,  "Unable to open wayland socket")) {
 		wlr_backend_destroy(server->backend);

sway/tree/container.c

@@ -15,6 +15,7 @@
 #include "sway/input_state.h"
 #include "sway/ipc-server.h"
 #include "sway/output.h"
+#include "sway/view.h"
 #include "log.h"
 #include "stringop.h"
 
@@ -291,44 +292,49 @@ swayc_t *new_container(swayc_t *child, enum swayc_layouts layout) {
 	return cont;
 }
 
-swayc_t *new_view(swayc_t *sibling, wlc_handle handle) {
+swayc_t *new_view(swayc_t *sibling, struct sway_view *view) {
 	if (!ASSERT_NONNULL(sibling)) {
 		return NULL;
 	}
-	const char *title = wlc_view_get_title(handle);
-	swayc_t *view = new_swayc(C_VIEW);
-	sway_log(L_DEBUG, "Adding new view %" PRIuPTR ":%s to container %p %d",
-		handle, title, sibling, sibling ? sibling->type : 0);
+	const char *title = view->iface.get_prop(view, VIEW_PROP_TITLE);
+	swayc_t *swayc = new_swayc(C_VIEW);
+	sway_log(L_DEBUG, "Adding new view %p:%s to container %p %d",
+		swayc, title, sibling, sibling ? sibling->type : 0);
 	// Setup values
-	view->handle = handle;
-	view->name = title ? strdup(title) : NULL;
-	const char *class = wlc_view_get_class(handle);
-	view->class = class ? strdup(class) : NULL;
-	const char *instance = wlc_view_get_instance(handle);
-	view->instance = instance ? strdup(instance) : NULL;
-	const char *app_id = wlc_view_get_app_id(handle);
-	view->app_id = app_id ? strdup(app_id) : NULL;
-	view->visible = true;
-	view->is_focused = true;
-	view->sticky = false;
-	view->width = 0;
-	view->height = 0;
-	view->desired_width = -1;
-	view->desired_height = -1;
-	// setup border
-	view->border_type = config->border;
-	view->border_thickness = config->border_thickness;
+	swayc->_handle.view = view;
 
-	view->is_floating = false;
+	swayc->name = title ? strdup(title) : NULL;
+
+	const char *class = view->iface.get_prop(view, VIEW_PROP_CLASS);
+	swayc->class = class ? strdup(class) : NULL;
+
+	const char *instance = view->iface.get_prop(view, VIEW_PROP_INSTANCE);
+	swayc->instance = instance ? strdup(instance) : NULL;
+
+	const char *app_id = view->iface.get_prop(view, VIEW_PROP_APP_ID);
+	swayc->app_id = app_id ? strdup(app_id) : NULL;
+
+	swayc->visible = true;
+	swayc->is_focused = true;
+	swayc->sticky = false;
+	swayc->width = 0;
+	swayc->height = 0;
+	swayc->desired_width = -1;
+	swayc->desired_height = -1;
+	// setup border
+	swayc->border_type = config->border;
+	swayc->border_thickness = config->border_thickness;
+
+	swayc->is_floating = false;
 
 	if (sibling->type == C_WORKSPACE) {
 		// Case of focused workspace, just create as child of it
-		add_child(sibling, view);
+		add_child(sibling, swayc);
 	} else {
 		// Regular case, create as sibling of current container
-		add_sibling(sibling, view);
+		add_sibling(sibling, swayc);
 	}
-	return view;
+	return swayc;
 }
 
 swayc_t *new_floating_view(wlc_handle handle) {