Merge branch 'rootston'

13 files changed, 1436 insertions, 0 deletions

diff --git a/rootston/config.c b/rootston/config.c
new file mode 100644
index 00000000..3280c6d1
--- /dev/null
+++ b/rootston/config.c
@@ -0,0 +1,269 @@
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#endif
+#include <stdlib.h>
+#include <limits.h>
+#include <getopt.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <wlr/util/log.h>
+#include <wlr/types/wlr_box.h>
+#include "rootston/config.h"
+#include "rootston/ini.h"
+
+static void usage(const char *name, int ret) {
+	fprintf(stderr,
+		"usage: %s [-C <FILE>]\n"
+		"\n"
+		" -C <FILE>      Path to the configuration file\n"
+		"                (default: rootston.ini).\n"
+		"                See `rootston.ini.example` for config\n"
+		"                file documentation.\n", name);
+
+	exit(ret);
+}
+
+static struct wlr_box *parse_geometry(const char *str) {
+	// format: {width}x{height}+{x}+{y}
+	if (strlen(str) > 255) {
+		wlr_log(L_ERROR, "cannot parse geometry string, too long");
+		return NULL;
+	}
+
+	char *buf = strdup(str);
+	struct wlr_box *box = calloc(1, sizeof(struct wlr_box));
+
+	bool has_width = false;
+	bool has_height = false;
+	bool has_x = false;
+	bool has_y = false;
+
+	char *pch = strtok(buf, "x+");
+	while (pch != NULL) {
+		errno = 0;
+		char *endptr;
+		long val = strtol(pch, &endptr, 0);
+
+		if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) ||
+				(errno != 0 && val == 0)) {
+			goto invalid_input;
+		}
+
+		if (endptr == pch) {
+			goto invalid_input;
+		}
+
+		if (!has_width) {
+			box->width = val;
+			has_width = true;
+		} else if (!has_height) {
+			box->height = val;
+			has_height = true;
+		} else if (!has_x) {
+			box->x = val;
+			has_x = true;
+		} else if (!has_y) {
+			box->y = val;
+			has_y = true;
+		} else {
+			break;
+		}
+		pch = strtok(NULL, "x+");
+	}
+
+	if (!has_width || !has_height) {
+		goto invalid_input;
+	}
+
+	free(buf);
+	return box;
+
+invalid_input:
+	wlr_log(L_ERROR, "could not parse geometry string: %s", str);
+	free(buf);
+	free(box);
+	return NULL;
+}
+
+static const char *output_prefix = "output:";
+static const char *device_prefix = "device:";
+
+static int config_ini_handler(void *user, const char *section, const char *name,
+		const char *value) {
+	struct roots_config *config = user;
+	if (strncmp(output_prefix, section, strlen(output_prefix)) == 0) {
+		const char *output_name = section + strlen(output_prefix);
+		struct output_config *oc;
+		bool found = false;
+
+		wl_list_for_each(oc, &config->outputs, link) {
+			if (strcmp(oc->name, output_name) == 0) {
+				found = true;
+				break;
+			}
+		}
+
+		if (!found) {
+			oc = calloc(1, sizeof(struct output_config));
+			oc->name = strdup(output_name);
+			oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
+			wl_list_insert(&config->outputs, &oc->link);
+		}
+
+		if (strcmp(name, "x") == 0) {
+			oc->x = strtol(value, NULL, 10);
+		} else if (strcmp(name, "y") == 0) {
+			oc->y = strtol(value, NULL, 10);
+		} else if (strcmp(name, "rotate") == 0) {
+			if (strcmp(value, "90") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_90;
+			} else if (strcmp(value, "180") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_180;
+			} else if (strcmp(value, "270") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_270;
+			} else if (strcmp(value, "flipped") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
+			} else if (strcmp(value, "flipped-90") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
+			} else if (strcmp(value, "flipped-180") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
+			} else if (strcmp(value, "flipped-270") == 0) {
+				oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
+			} else {
+				wlr_log(L_ERROR, "got unknown transform value: %s", value);
+			}
+		}
+	} else if (strcmp(section, "cursor") == 0) {
+		if (strcmp(name, "map-to-output") == 0) {
+			free(config->cursor.mapped_output);
+			config->cursor.mapped_output = strdup(value);
+		} else if (strcmp(name, "geometry") == 0) {
+			free(config->cursor.mapped_box);
+			config->cursor.mapped_box = parse_geometry(value);
+		} else {
+			wlr_log(L_ERROR, "got unknown cursor config: %s", name);
+		}
+	} else if (strncmp(device_prefix, section, strlen(device_prefix)) == 0) {
+		const char *device_name = section + strlen(device_prefix);
+		struct device_config *dc;
+		bool found = false;
+
+		wl_list_for_each(dc, &config->devices, link) {
+			if (strcmp(dc->name, device_name) == 0) {
+				found = true;
+				break;
+			}
+		}
+
+		if (!found) {
+			dc = calloc(1, sizeof(struct device_config));
+			dc->name = strdup(device_name);
+			wl_list_insert(&config->devices, &dc->link);
+		}
+
+		if (strcmp(name, "map-to-output") == 0) {
+			free(dc->mapped_output);
+			dc->mapped_output = strdup(value);
+		} else if (strcmp(name, "geometry") == 0) {
+			free(dc->mapped_box);
+			dc->mapped_box = parse_geometry(value);
+		} else {
+			wlr_log(L_ERROR, "got unknown device config: %s", name);
+		}
+	} else {
+		wlr_log(L_ERROR, "got unknown config section: %s", section);
+	}
+
+	return 1;
+}
+
+struct roots_config *parse_args(int argc, char *argv[]) {
+	struct roots_config *config = calloc(1, sizeof(struct roots_config));
+	wl_list_init(&config->outputs);
+	wl_list_init(&config->devices);
+
+	int c;
+	while ((c = getopt(argc, argv, "C:h")) != -1) {
+		switch (c) {
+		case 'C':
+			config->config_path = strdup(optarg);
+			break;
+		case 'h':
+		case '?':
+			usage(argv[0], c != 'h');
+		}
+	}
+
+	if (!config->config_path) {
+		// get the config path from the current directory
+		char cwd[MAXPATHLEN];
+		if (getcwd(cwd, sizeof(cwd)) != NULL) {
+			char buf[MAXPATHLEN];
+			snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "rootston.ini");
+			config->config_path = strdup(buf);
+		} else {
+			wlr_log(L_ERROR, "could not get cwd");
+			exit(1);
+		}
+	}
+
+	int result = ini_parse(config->config_path, config_ini_handler, config);
+
+	if (result == -1) {
+		wlr_log(L_DEBUG, "No config file found. Using empty config.");
+	} else if (result == -2) {
+		wlr_log(L_ERROR, "Could not allocate memory to parse config file");
+		exit(1);
+	} else if (result != 0) {
+		wlr_log(L_ERROR, "Could not parse config file");
+		exit(1);
+	}
+
+	return config;
+}
+
+void roots_config_destroy(struct roots_config *config) {
+	struct output_config *oc, *otmp = NULL;
+	wl_list_for_each_safe(oc, otmp, &config->outputs, link) {
+		free(oc->name);
+		free(oc);
+	}
+
+	struct device_config *dc, *dtmp = NULL;
+	wl_list_for_each_safe(dc, dtmp, &config->devices, link) {
+		free(dc->name);
+		free(dc->mapped_output);
+		free(dc->mapped_box);
+		free(dc);
+	}
+
+	free(config->config_path);
+	free(config->cursor.mapped_output);
+	free(config->cursor.mapped_box);
+	free(config);
+}
+
+struct output_config *config_get_output(struct roots_config *config,
+		struct wlr_output *output) {
+	struct output_config *o_config;
+	wl_list_for_each(o_config, &config->outputs, link) {
+		if (strcmp(o_config->name, output->name) == 0) {
+			return o_config;
+		}
+	}
+
+	return NULL;
+}
+
+struct device_config *config_get_device(struct roots_config *config,
+		struct wlr_input_device *device) {
+	struct device_config *d_config;
+	wl_list_for_each(d_config, &config->devices, link) {
+		if (strcmp(d_config->name, device->name) == 0) {
+			return d_config;
+		}
+	}
+
+	return NULL;
+}
diff --git a/rootston/cursor.c b/rootston/cursor.c
new file mode 100644
index 00000000..89f5874e
--- /dev/null
+++ b/rootston/cursor.c
@@ -0,0 +1,225 @@
+#include <stdint.h>
+#include <string.h>
+// TODO: BSD et al
+#include <linux/input-event-codes.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/util/log.h>
+#include "rootston/config.h"
+#include "rootston/input.h"
+#include "rootston/desktop.h"
+
+void cursor_update_position(struct roots_input *input, uint32_t time) {
+	struct roots_desktop *desktop = input->server->desktop;
+	struct roots_view *view;
+	switch (input->mode) {
+	case ROOTS_CURSOR_PASSTHROUGH:
+		view = view_at(desktop, input->cursor->x, input->cursor->y);
+		if (view) {
+			struct wlr_box box;
+			view_get_input_bounds(view, &box);
+			double sx = input->cursor->x - view->x;
+			double sy = input->cursor->y - view->y;
+			wlr_seat_pointer_enter(input->wl_seat, view->wlr_surface, sx, sy);
+			wlr_seat_pointer_send_motion(input->wl_seat, time, sx, sy);
+		} else {
+			wlr_seat_pointer_clear_focus(input->wl_seat);
+		}
+		break;
+	case ROOTS_CURSOR_MOVE:
+		if (input->active_view) {
+			input->active_view->x = input->cursor->x - input->offs_x;
+			input->active_view->y = input->cursor->y - input->offs_y;
+		}
+		break;
+	case ROOTS_CURSOR_RESIZE:
+		break;
+	case ROOTS_CURSOR_ROTATE:
+		break;
+	}
+}
+
+static void set_view_focus(struct roots_input *input,
+		struct roots_desktop *desktop, struct roots_view *view) {
+	if (input->active_view == view) {
+		return;
+	}
+	struct roots_view *_view;
+	wl_list_for_each(_view, &desktop->views, link) {
+		view_activate(_view, _view == view);
+	}
+	input->active_view = view;
+	input->mode = ROOTS_CURSOR_PASSTHROUGH;
+}
+
+static void handle_cursor_motion(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_motion);
+	struct wlr_event_pointer_motion *event = data;
+	wlr_cursor_move(input->cursor, event->device,
+			event->delta_x, event->delta_y);
+	cursor_update_position(input, (uint32_t)event->time_usec);
+}
+
+static void handle_cursor_motion_absolute(struct wl_listener *listener,
+		void *data) {
+	struct roots_input *input = wl_container_of(listener,
+			input, cursor_motion_absolute);
+	struct wlr_event_pointer_motion_absolute *event = data;
+	wlr_cursor_warp_absolute(input->cursor, event->device,
+		event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+	cursor_update_position(input, (uint32_t)event->time_usec);
+}
+
+static void handle_cursor_axis(struct wl_listener *listener, void *data) {
+	struct roots_input *input =
+		wl_container_of(listener, input, cursor_axis);
+	struct wlr_event_pointer_axis *event = data;
+	wlr_seat_pointer_send_axis(input->wl_seat, event->time_sec,
+		event->orientation, event->delta);
+}
+
+static void do_cursor_button_press(struct roots_input *input,
+		struct wlr_cursor *cursor, struct wlr_input_device *device,
+		uint32_t time, uint32_t button, uint32_t state) {
+	struct roots_desktop *desktop = input->server->desktop;
+	struct roots_view *view = view_at(desktop,
+			input->cursor->x, input->cursor->y);
+	uint32_t serial = wlr_seat_pointer_send_button(
+			input->wl_seat, time, button, state);
+	int i;
+	switch (state) {
+	case WLR_BUTTON_RELEASED:
+		input->active_view = NULL;
+		input->mode = ROOTS_CURSOR_PASSTHROUGH;
+		break;
+	case WLR_BUTTON_PRESSED:
+		i = input->input_events_idx;
+		input->input_events[i].serial = serial;
+		input->input_events[i].cursor = cursor;
+		input->input_events[i].device = device;
+		input->input_events_idx = (i + 1)
+			% (sizeof(input->input_events) / sizeof(input->input_events[0]));
+		set_view_focus(input, desktop, view);
+		if (view) {
+			wlr_seat_keyboard_enter(input->wl_seat, view->wlr_surface);
+		}
+		break;
+	}
+}
+
+static void handle_cursor_button(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_button);
+	struct wlr_event_pointer_button *event = data;
+	do_cursor_button_press(input, input->cursor, event->device,
+			(uint32_t)event->time_usec, event->button, event->state);
+}
+
+static void handle_tool_axis(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_tool_axis);
+	struct wlr_event_tablet_tool_axis *event = data;
+	if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X) &&
+			(event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
+		wlr_cursor_warp_absolute(input->cursor, event->device,
+			event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+		cursor_update_position(input, (uint32_t)event->time_usec);
+	}
+}
+
+static void handle_tool_tip(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_tool_tip);
+	struct wlr_event_tablet_tool_tip *event = data;
+	do_cursor_button_press(input, input->cursor, event->device,
+			(uint32_t)event->time_usec, BTN_LEFT, event->state);
+}
+
+void cursor_initialize(struct roots_input *input) {
+	struct wlr_cursor *cursor = input->cursor;
+
+	wl_list_init(&input->cursor_motion.link);
+	wl_signal_add(&cursor->events.motion, &input->cursor_motion);
+	input->cursor_motion.notify = handle_cursor_motion;
+
+	wl_list_init(&input->cursor_motion_absolute.link);
+	wl_signal_add(&cursor->events.motion_absolute,
+		&input->cursor_motion_absolute);
+	input->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
+
+	wl_list_init(&input->cursor_button.link);
+	wl_signal_add(&cursor->events.button, &input->cursor_button);
+	input->cursor_button.notify = handle_cursor_button;
+
+	wl_list_init(&input->cursor_axis.link);
+	wl_signal_add(&cursor->events.axis, &input->cursor_axis);
+	input->cursor_axis.notify = handle_cursor_axis;
+
+	wl_list_init(&input->cursor_tool_axis.link);
+	wl_signal_add(&cursor->events.tablet_tool_axis, &input->cursor_tool_axis);
+	input->cursor_tool_axis.notify = handle_tool_axis;
+
+	wl_list_init(&input->cursor_tool_tip.link);
+	wl_signal_add(&cursor->events.tablet_tool_tip, &input->cursor_tool_tip);
+	input->cursor_tool_tip.notify = handle_tool_tip;
+}
+
+static void reset_device_mappings(struct roots_config *config,
+		struct wlr_cursor *cursor, struct wlr_input_device *device) {
+	wlr_cursor_map_input_to_output(cursor, device, NULL);
+	struct device_config *dconfig;
+	if ((dconfig = config_get_device(config, device))) {
+		wlr_cursor_map_input_to_region(cursor, device, dconfig->mapped_box);
+	}
+}
+
+static void set_device_output_mappings(struct roots_config *config,
+		struct wlr_cursor *cursor, struct wlr_output *output,
+		struct wlr_input_device *device) {
+	struct device_config *dconfig;
+	dconfig = config_get_device(config, device);
+	if (dconfig && dconfig->mapped_output &&
+			strcmp(dconfig->mapped_output, output->name) == 0) {
+		wlr_cursor_map_input_to_output(cursor, device, output);
+	}
+}
+
+void cursor_load_config(struct roots_config *config,
+		struct wlr_cursor *cursor,
+		struct roots_input *input,
+		struct roots_desktop *desktop) {
+	struct roots_pointer *pointer;
+	struct roots_touch *touch;
+	struct roots_tablet_tool *tablet_tool;
+	struct roots_output *output;
+
+	// reset mappings
+	wlr_cursor_map_to_output(cursor, NULL);
+	wl_list_for_each(pointer, &input->pointers, link) {
+		reset_device_mappings(config, cursor, pointer->device);
+	}
+	wl_list_for_each(touch, &input->touch, link) {
+		reset_device_mappings(config, cursor, touch->device);
+	}
+	wl_list_for_each(tablet_tool, &input->tablet_tools, link) {
+		reset_device_mappings(config, cursor, tablet_tool->device);
+	}
+
+	// configure device to output mappings
+	const char *mapped_output = config->cursor.mapped_output;
+	wl_list_for_each(output, &desktop->outputs, link) {
+		if (mapped_output && strcmp(mapped_output, output->wlr_output->name) == 0) {
+			wlr_cursor_map_to_output(cursor, output->wlr_output);
+		}
+
+		wl_list_for_each(pointer, &input->pointers, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				pointer->device);
+		}
+		wl_list_for_each(tablet_tool, &input->tablet_tools, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				tablet_tool->device);
+		}
+		wl_list_for_each(touch, &input->touch, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				touch->device);
+		}
+	}
+}
diff --git a/rootston/desktop.c b/rootston/desktop.c
new file mode 100644
index 00000000..697c83df
--- /dev/null
+++ b/rootston/desktop.c
@@ -0,0 +1,102 @@
+#define _POSIX_C_SOURCE 199309L
+#include <time.h>
+#include <stdlib.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_compositor.h>
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_gamma_control.h>
+#include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_wl_shell.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+#include <wlr/util/log.h>
+#include "rootston/desktop.h"
+#include "rootston/server.h"
+
+void view_destroy(struct roots_view *view) {
+	wl_list_remove(&view->link);
+	free(view);
+}
+
+void view_get_input_bounds(struct roots_view *view, struct wlr_box *box) {
+	if (view->get_input_bounds) {
+		view->get_input_bounds(view, box);
+		return;
+	}
+	box->x = box->y = 0;
+	box->width = view->wlr_surface->current.width;
+	box->height = view->wlr_surface->current.height;
+}
+
+void view_activate(struct roots_view *view, bool activate) {
+	if (view->activate) {
+		view->activate(view, activate);
+	}
+}
+
+struct roots_view *view_at(struct roots_desktop *desktop, int x, int y) {
+	struct roots_view *view;
+	wl_list_for_each(view, &desktop->views, link) {
+		struct wlr_box box;
+		view_get_input_bounds(view, &box);
+		box.x += view->x;
+		box.y += view->y;
+		if (wlr_box_contains_point(&box, x, y)) {
+			return view;
+		}
+	}
+	return NULL;
+}
+
+struct roots_desktop *desktop_create(struct roots_server *server,
+		struct roots_config *config) {
+	struct roots_desktop *desktop = calloc(1, sizeof(struct roots_desktop));
+	wlr_log(L_DEBUG, "Initializing roots desktop");
+
+	wl_list_init(&desktop->views);
+	wl_list_init(&desktop->outputs);
+	wl_list_init(&desktop->output_add.link);
+	desktop->output_add.notify = output_add_notify;
+	wl_list_init(&desktop->output_remove.link);
+	desktop->output_remove.notify = output_remove_notify;
+
+	wl_signal_add(&server->backend->events.output_add,
+			&desktop->output_add);
+	wl_signal_add(&server->backend->events.output_remove,
+			&desktop->output_remove);
+
+	desktop->server = server;
+	desktop->config = config;
+	desktop->layout = wlr_output_layout_create();
+	desktop->compositor = wlr_compositor_create(
+			server->wl_display, server->renderer);
+
+	wlr_cursor_attach_output_layout(server->input->cursor, desktop->layout);
+	wlr_cursor_map_to_region(server->input->cursor, config->cursor.mapped_box);
+	cursor_load_config(config, server->input->cursor,
+			server->input, desktop);
+
+	desktop->xdg_shell_v6 = wlr_xdg_shell_v6_create(server->wl_display);
+	wl_signal_add(&desktop->xdg_shell_v6->events.new_surface,
+		&desktop->xdg_shell_v6_surface);
+	desktop->xdg_shell_v6_surface.notify = handle_xdg_shell_v6_surface;
+
+	desktop->wl_shell = wlr_wl_shell_create(server->wl_display);
+	wl_signal_add(&desktop->wl_shell->events.new_surface,
+		&desktop->wl_shell_surface);
+	desktop->wl_shell_surface.notify = handle_wl_shell_surface;
+
+	desktop->xwayland = wlr_xwayland_create(server->wl_display,
+		desktop->compositor);
+	wl_signal_add(&desktop->xwayland->events.new_surface,
+		&desktop->xwayland_surface);
+	desktop->xwayland_surface.notify = handle_xwayland_surface;
+
+	desktop->gamma_control_manager = wlr_gamma_control_manager_create(
+			server->wl_display);
+
+	return desktop;
+}
+
+void desktop_destroy(struct roots_desktop *desktop) {
+	// TODO
+}
diff --git a/rootston/ini.c b/rootston/ini.c
new file mode 100644
index 00000000..56cc9ea6
--- /dev/null
+++ b/rootston/ini.c
@@ -0,0 +1,195 @@
+/* inih -- simple .INI file parser
+
+inih is released under the New BSD license (see LICENSE.txt). Go to the project
+home page for more info:
+
+https://github.com/benhoyt/inih
+
+*/
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+
+#include "rootston/ini.h"
+
+#if !INI_USE_STACK
+#include <stdlib.h>
+#endif
+
+#define MAX_SECTION 50
+#define MAX_NAME 50
+
+/* Strip whitespace chars off end of given string, in place. Return s. */
+static char* rstrip(char* s)
+{
+    char* p = s + strlen(s);
+    while (p > s && isspace((unsigned char)(*--p)))
+        *p = '\0';
+    return s;
+}
+
+/* Return pointer to first non-whitespace char in given string. */
+static char* lskip(const char* s)
+{
+    while (*s && isspace((unsigned char)(*s)))
+        s++;
+    return (char*)s;
+}
+
+/* Return pointer to first char (of chars) or inline comment in given string,
+   or pointer to null at end of string if neither found. Inline comment must
+   be prefixed by a whitespace character to register as a comment. */
+static char* find_chars_or_comment(const char* s, const char* chars)
+{
+#if INI_ALLOW_INLINE_COMMENTS
+    int was_space = 0;
+    while (*s && (!chars || !strchr(chars, *s)) &&
+           !(was_space && strchr(INI_INLINE_COMMENT_PREFIXES, *s))) {
+        was_space = isspace((unsigned char)(*s));
+        s++;
+    }
+#else
+    while (*s && (!chars || !strchr(chars, *s))) {
+        s++;
+    }
+#endif
+    return (char*)s;
+}
+
+/* Version of strncpy that ensures dest (size bytes) is null-terminated. */
+static char* strncpy0(char* dest, const char* src, size_t size)
+{
+    strncpy(dest, src, size);
+    dest[size - 1] = '\0';
+    return dest;
+}
+
+/* See documentation in header file. */
+int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
+                     void* user)
+{
+    /* Uses a fair bit of stack (use heap instead if you need to) */
+#if INI_USE_STACK
+    char line[INI_MAX_LINE];
+#else
+    char* line;
+#endif
+    char section[MAX_SECTION] = "";
+    char prev_name[MAX_NAME] = "";
+
+    char* start;
+    char* end;
+    char* name;
+    char* value;
+    int lineno = 0;
+    int error = 0;
+
+#if !INI_USE_STACK
+    line = (char*)malloc(INI_MAX_LINE);
+    if (!line) {
+        return -2;
+    }
+#endif
+
+    /* Scan through stream line by line */
+    while (reader(line, INI_MAX_LINE, stream) != NULL) {
+        lineno++;
+
+        start = line;
+#if INI_ALLOW_BOM
+        if (lineno == 1 && (unsigned char)start[0] == 0xEF &&
+                           (unsigned char)start[1] == 0xBB &&
+                           (unsigned char)start[2] == 0xBF) {
+            start += 3;
+        }
+#endif
+        start = lskip(rstrip(start));
+
+        if (*start == ';' || *start == '#') {
+            /* Per Python configparser, allow both ; and # comments at the
+               start of a line */
+        }
+#if INI_ALLOW_MULTILINE
+        else if (*prev_name && *start && start > line) {
+            /* Non-blank line with leading whitespace, treat as continuation
+               of previous name's value (as per Python configparser). */
+            if (!handler(user, section, prev_name, start) && !error)
+                error = lineno;
+        }
+#endif
+        else if (*start == '[') {
+            /* A "[section]" line */
+            end = find_chars_or_comment(start + 1, "]");
+            if (*end == ']') {
+                *end = '\0';
+                strncpy0(section, start + 1, sizeof(section));
+                *prev_name = '\0';
+            }
+            else if (!error) {
+                /* No ']' found on section line */
+                error = lineno;
+            }
+        }
+        else if (*start) {
+            /* Not a comment, must be a name[=:]value pair */
+            end = find_chars_or_comment(start, "=:");
+            if (*end == '=' || *end == ':') {
+                *end = '\0';
+                name = rstrip(start);
+                value = lskip(end + 1);
+#if INI_ALLOW_INLINE_COMMENTS
+                end = find_chars_or_comment(value, NULL);
+                if (*end)
+                    *end = '\0';
+#endif
+                rstrip(value);
+
+                /* Valid name[=:]value pair found, call handler */
+                strncpy0(prev_name, name, sizeof(prev_name));
+                if (!handler(user, section, name, value) && !error)
+                    error = lineno;
+				memset(value, 0, strlen(value));
+            }
+            else if (!error) {
+                /* No '=' or ':' found on name[=:]value line */
+                error = lineno;
+            }
+        }
+
+#if INI_STOP_ON_FIRST_ERROR
+        if (error)
+            break;
+#endif
+    }
+
+#if !INI_USE_STACK
+    free(line);
+#endif
+
+    return error;
+}
+
+/* See documentation in header file. */
+int ini_parse_file(FILE* file, ini_handler handler, void* user)
+{
+    return ini_parse_stream((ini_reader)fgets, file, handler, user);
+}
+
+/* See documentation in header file. */
+int ini_parse(const char* filename, ini_handler handler, void* user)
+{
+    FILE* file;
+    int error;
+
+    file = fopen(filename, "r");
+    if (!file)
+        return -1;
+    error = ini_parse_file(file, handler, user);
+    fclose(file);
+    return error;
+}
diff --git a/rootston/input.c b/rootston/input.c
new file mode 100644
index 00000000..b4427212
--- /dev/null
+++ b/rootston/input.c
@@ -0,0 +1,112 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/util/log.h>
+#include <wlr/xcursor.h>
+#include "rootston/server.h"
+#include "rootston/config.h"
+#include "rootston/input.h"
+
+static const char *device_type(enum wlr_input_device_type type) {
+	switch (type) {
+	case WLR_INPUT_DEVICE_KEYBOARD:
+		return "keyboard";
+	case WLR_INPUT_DEVICE_POINTER:
+		return "pointer";
+	case WLR_INPUT_DEVICE_TOUCH:
+		return "touch";
+	case WLR_INPUT_DEVICE_TABLET_TOOL:
+		return "tablet tool";
+	case WLR_INPUT_DEVICE_TABLET_PAD:
+		return "tablet pad";
+	}
+	return NULL;
+}
+
+static void input_add_notify(struct wl_listener *listener, void *data) {
+	struct wlr_input_device *device = data;
+	struct roots_input *input = wl_container_of(listener, input, input_add);
+	wlr_log(L_DEBUG, "New input device: %s (%d:%d) %s", device->name,
+			device->vendor, device->product, device_type(device->type));
+	switch (device->type) {
+	case WLR_INPUT_DEVICE_KEYBOARD:
+		keyboard_add(device, input);
+		break;
+	case WLR_INPUT_DEVICE_POINTER:
+		pointer_add(device, input);
+		break;
+	case WLR_INPUT_DEVICE_TOUCH:
+		//touch_add(device, input);
+		break;
+	case WLR_INPUT_DEVICE_TABLET_TOOL:
+		//tablet_tool_add(device, input);
+		break;
+	default:
+		break;
+	}
+}
+
+static void input_remove_notify(struct wl_listener *listener, void *data) {
+	struct wlr_input_device *device = data;
+	struct roots_input *input = wl_container_of(listener, input, input_remove);
+	switch (device->type) {
+	case WLR_INPUT_DEVICE_KEYBOARD:
+		keyboard_remove(device, input);
+		break;
+	case WLR_INPUT_DEVICE_POINTER:
+		pointer_remove(device, input);
+		break;
+	case WLR_INPUT_DEVICE_TOUCH:
+		//touch_remove(device, input);
+		break;
+	case WLR_INPUT_DEVICE_TABLET_TOOL:
+		//tablet_tool_remove(device, input);
+		break;
+	default:
+		break;
+	}
+}
+
+struct roots_input *input_create(struct roots_server *server,
+		struct roots_config *config) {
+	wlr_log(L_DEBUG, "Initializing roots input");
+	struct roots_input *input = calloc(1, sizeof(struct roots_input));
+	assert(input);
+
+	input->config = config;
+	input->server = server;
+
+	struct wlr_xcursor_theme *theme;
+	assert(theme = wlr_xcursor_theme_load("default", 16));
+	assert(input->xcursor = wlr_xcursor_theme_get_cursor(theme, "left_ptr"));
+
+	assert(input->wl_seat = wlr_seat_create(server->wl_display, "seat0"));
+	wlr_seat_set_capabilities(input->wl_seat, WL_SEAT_CAPABILITY_KEYBOARD
+		| WL_SEAT_CAPABILITY_POINTER | WL_SEAT_CAPABILITY_TOUCH);
+
+	wl_list_init(&input->keyboards);
+	wl_list_init(&input->pointers);
+	wl_list_init(&input->touch);
+	wl_list_init(&input->tablet_tools);
+
+	wl_list_init(&input->input_add.link);
+	input->input_add.notify = input_add_notify;
+	wl_list_init(&input->input_remove.link);
+	input->input_remove.notify = input_remove_notify;
+
+	wl_signal_add(&server->backend->events.input_add,
+			&input->input_add);
+	wl_signal_add(&server->backend->events.input_remove,
+			&input->input_remove);
+
+	input->cursor = wlr_cursor_create();
+	cursor_initialize(input);
+	wlr_cursor_set_xcursor(input->cursor, input->xcursor);
+
+	return input;
+}
+
+void input_destroy(struct roots_input *input) {
+	// TODO
+}
diff --git a/rootston/keyboard.c b/rootston/keyboard.c
new file mode 100644
index 00000000..c4c98c91
--- /dev/null
+++ b/rootston/keyboard.c
@@ -0,0 +1,75 @@
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_input_device.h>
+#include <wlr/types/wlr_pointer.h>
+#include <wlr/backend/multi.h>
+#include <wlr/backend/session.h>
+#include <wlr/util/log.h>
+#include <xkbcommon/xkbcommon.h>
+#include "rootston/input.h"
+
+static void keyboard_key_notify(struct wl_listener *listener, void *data) {
+	struct wlr_event_keyboard_key *event = data;
+	struct roots_keyboard *keyboard = wl_container_of(listener, keyboard, key);
+	struct roots_input *input = keyboard->input;
+	struct roots_server *server = input->server;
+
+	enum wlr_key_state key_state = event->state;
+	uint32_t keycode = event->keycode + 8;
+	const xkb_keysym_t *syms;
+	int nsyms = xkb_state_key_get_syms(keyboard->device->keyboard->xkb_state,
+			keycode, &syms);
+	for (int i = 0; i < nsyms; ++i) {
+		xkb_keysym_t sym = syms[i];
+		if (sym == XKB_KEY_Escape) {
+			// TEMPORARY, probably
+			wl_display_terminate(server->wl_display);
+		} else if (key_state == WLR_KEY_PRESSED &&
+				sym >= XKB_KEY_XF86Switch_VT_1 &&
+				sym <= XKB_KEY_XF86Switch_VT_12) {
+			if (wlr_backend_is_multi(server->backend)) {
+				struct wlr_session *session =
+					wlr_multi_get_session(server->backend);
+				if (session) {
+					wlr_session_change_vt(session, sym - XKB_KEY_XF86Switch_VT_1 + 1);
+				}
+			}
+		}
+	}
+}
+
+void keyboard_add(struct wlr_input_device *device, struct roots_input *input) {
+	struct roots_keyboard *keyboard = calloc(sizeof(struct roots_keyboard), 1);
+	device->data = keyboard;
+	keyboard->device = device;
+	keyboard->input = input;
+	wl_list_init(&keyboard->key.link);
+	keyboard->key.notify = keyboard_key_notify;
+	wl_signal_add(&device->keyboard->events.key, &keyboard->key);
+	wl_list_insert(&input->keyboards, &keyboard->link);
+
+	struct xkb_rule_names rules;
+	memset(&rules, 0, sizeof(rules));
+	rules.rules = getenv("XKB_DEFAULT_RULES");
+	rules.model = getenv("XKB_DEFAULT_MODEL");
+	rules.layout = getenv("XKB_DEFAULT_LAYOUT");
+	rules.variant = getenv("XKB_DEFAULT_VARIANT");
+	rules.options = getenv("XKB_DEFAULT_OPTIONS");
+	struct xkb_context *context;
+	assert(context = xkb_context_new(XKB_CONTEXT_NO_FLAGS));
+	wlr_keyboard_set_keymap(device->keyboard,
+			xkb_map_new_from_names(context, &rules,
+				XKB_KEYMAP_COMPILE_NO_FLAGS));
+	xkb_context_unref(context);
+	wlr_seat_attach_keyboard(input->wl_seat, device);
+}
+
+void keyboard_remove(struct wlr_input_device *device, struct roots_input *input) {
+	struct roots_keyboard *keyboard = device->data;
+	wlr_seat_detach_keyboard(input->wl_seat, device->keyboard);
+	wl_list_remove(&keyboard->key.link);
+	wl_list_remove(&keyboard->link);
+	free(keyboard);
+}
diff --git a/rootston/main.c b/rootston/main.c
new file mode 100644
index 00000000..c8ec1249
--- /dev/null
+++ b/rootston/main.c
@@ -0,0 +1,46 @@
+#define _POSIX_C_SOURCE 200112L
+#include <assert.h>
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/backend.h>
+#include <wlr/render.h>
+#include <wlr/render/gles2.h>
+#include <wlr/util/log.h>
+#include "rootston/config.h"
+#include "rootston/server.h"
+
+struct roots_server server = { 0 };
+
+int main(int argc, char **argv) {
+	assert(server.config = parse_args(argc, argv));
+	assert(server.wl_display = wl_display_create());
+	assert(server.wl_event_loop = wl_display_get_event_loop(server.wl_display));
+
+	assert(server.backend = wlr_backend_autocreate(server.wl_display));
+
+	assert(server.renderer = wlr_gles2_renderer_create(server.backend));
+	wl_display_init_shm(server.wl_display);
+	server.input = input_create(&server, server.config);
+	server.desktop = desktop_create(&server, server.config);
+	server.data_device_manager = wlr_data_device_manager_create(
+			server.wl_display);
+
+	const char *socket = wl_display_add_socket_auto(server.wl_display);
+	if (!socket) {
+		wlr_log_errno(L_ERROR, "Unable to open wayland socket");
+		wlr_backend_destroy(server.backend);
+		return 1;
+	}
+
+	wlr_log(L_INFO, "Running compositor on wayland display '%s'", socket);
+	setenv("_WAYLAND_DISPLAY", socket, true);
+
+	if (!wlr_backend_start(server.backend)) {
+		wlr_log(L_ERROR, "Failed to start backend");
+		wlr_backend_destroy(server.backend);
+		return 1;
+	}
+
+	wl_display_run(server.wl_display);
+	return 0;
+}
diff --git a/rootston/meson.build b/rootston/meson.build
new file mode 100644
index 00000000..59f73e96
--- /dev/null
+++ b/rootston/meson.build
@@ -0,0 +1,16 @@
+executable(
+	'rootston', [
+		'config.c',
+		'cursor.c',
+		'desktop.c',
+		'ini.c',
+		'input.c',
+		'keyboard.c',
+		'main.c',
+		'output.c',
+		'pointer.c',
+		'xdg_shell_v6.c',
+		'xwayland.c',
+		'wl_shell.c',
+	], dependencies: wlroots
+)
diff --git a/rootston/output.c b/rootston/output.c
new file mode 100644
index 00000000..0f015fb6
--- /dev/null
+++ b/rootston/output.c
@@ -0,0 +1,140 @@
+#define _POSIX_C_SOURCE 199309L
+#include <time.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_compositor.h>
+#include <wlr/types/wlr_wl_shell.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+#include <wlr/render/matrix.h>
+#include <wlr/util/log.h>
+#include "rootston/server.h"
+#include "rootston/desktop.h"
+#include "rootston/config.h"
+
+static inline int64_t timespec_to_msec(const struct timespec *a) {
+	return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
+}
+
+static void render_view(struct roots_desktop *desktop,
+		struct wlr_output *wlr_output, struct timespec *when,
+		struct roots_view *view, double ox, double oy) {
+	struct wlr_surface *surface = view->wlr_surface;
+	float matrix[16];
+	float transform[16];
+	wlr_surface_flush_damage(surface);
+	if (surface->texture->valid) {
+		wlr_matrix_translate(&transform, ox, oy, 0);
+		wlr_surface_get_matrix(surface, &matrix,
+			&wlr_output->transform_matrix, &transform);
+		wlr_render_with_matrix(desktop->server->renderer,
+				surface->texture, &matrix);
+
+		struct wlr_frame_callback *cb, *cnext;
+		wl_list_for_each_safe(cb, cnext, &surface->frame_callback_list, link) {
+			wl_callback_send_done(cb->resource, timespec_to_msec(when));
+			wl_resource_destroy(cb->resource);
+		}
+	}
+}
+
+static void output_frame_notify(struct wl_listener *listener, void *data) {
+	struct wlr_output *wlr_output = data;
+	struct roots_output *output = wl_container_of(listener, output, frame);
+	struct roots_desktop *desktop = output->desktop;
+	struct roots_server *server = desktop->server;
+
+	struct timespec now;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+
+	wlr_output_make_current(wlr_output);
+	wlr_renderer_begin(server->renderer, wlr_output);
+
+	struct roots_view *view;
+	wl_list_for_each(view, &desktop->views, link) {
+		int width = view->wlr_surface->current.buffer_width;
+		int height = view->wlr_surface->current.buffer_height;
+
+		if (wlr_output_layout_intersects(desktop->layout, wlr_output,
+					view->x, view->y, view->x + width, view->y + height)) {
+			double ox = view->x, oy = view->y;
+			wlr_output_layout_output_coords(
+					desktop->layout, wlr_output, &ox, &oy);
+			render_view(desktop, wlr_output, &now, view, ox, oy);
+		}
+	}
+
+	wlr_renderer_end(server->renderer);
+	wlr_output_swap_buffers(wlr_output);
+
+	output->last_frame = desktop->last_frame = now;
+}
+
+void output_add_notify(struct wl_listener *listener, void *data) {
+	struct wlr_output *wlr_output = data;
+	struct roots_desktop *desktop = wl_container_of(listener, desktop, output_add);
+	struct roots_input *input = desktop->server->input;
+	struct roots_config *config = desktop->config;
+
+	wlr_log(L_DEBUG, "Output '%s' added", wlr_output->name);
+	wlr_log(L_DEBUG, "%s %s %"PRId32"mm x %"PRId32"mm",
+			wlr_output->make, wlr_output->model,
+			wlr_output->phys_width, wlr_output->phys_height);
+	if (wlr_output->modes->length > 0) {
+		wlr_output_set_mode(wlr_output, wlr_output->modes->items[0]);
+	}
+
+	struct roots_output *output = calloc(1, sizeof(struct roots_output));
+	clock_gettime(CLOCK_MONOTONIC, &output->last_frame);
+	output->desktop = desktop;
+	output->wlr_output = wlr_output;
+	output->frame.notify = output_frame_notify;
+	wl_list_init(&output->frame.link);
+	wl_signal_add(&wlr_output->events.frame, &output->frame);
+	wl_list_insert(&desktop->outputs, &output->link);
+
+	struct output_config *output_config = config_get_output(config, wlr_output);
+	if (output_config) {
+		wlr_output_transform(wlr_output, output_config->transform);
+		wlr_output_layout_add(desktop->layout,
+				wlr_output, output_config->x, output_config->y);
+	} else {
+		wlr_output_layout_add_auto(desktop->layout, wlr_output);
+	}
+
+	cursor_load_config(config, input->cursor, input, desktop);
+
+	struct wlr_xcursor_image *image = input->xcursor->images[0];
+	// TODO the cursor must be set depending on which surface it is displayed
+	// over which should happen in the compositor.
+	if (!wlr_output_set_cursor(wlr_output, image->buffer,
+			image->width, image->width, image->height)) {
+		wlr_log(L_DEBUG, "Failed to set hardware cursor");
+		return;
+	}
+
+	wlr_cursor_warp(input->cursor, NULL, input->cursor->x, input->cursor->y);
+}
+
+void output_remove_notify(struct wl_listener *listener, void *data) {
+	struct wlr_output *wlr_output = data;
+	struct roots_desktop *desktop = wl_container_of(listener, desktop, output_remove);
+	struct roots_output *output = NULL, *_output;
+	wl_list_for_each(_output, &desktop->outputs, link) {
+		if (_output->wlr_output == wlr_output) {
+			output = _output;
+			break;
+		}
+	}
+	if (!output) {
+		return; // We are unfamiliar with this output
+	}
+	wlr_output_layout_remove(desktop->layout, output->wlr_output);
+	// TODO: cursor
+	//example_config_configure_cursor(sample->config, sample->cursor,
+	//	sample->compositor);
+	wl_list_remove(&output->link);
+	wl_list_remove(&output->frame.link);
+	wl_list_remove(&output->resolution.link);
+	free(output);
+}
diff --git a/rootston/pointer.c b/rootston/pointer.c
new file mode 100644
index 00000000..299ecdfc
--- /dev/null
+++ b/rootston/pointer.c
@@ -0,0 +1,23 @@
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_input_device.h>
+#include <wlr/types/wlr_pointer.h>
+#include "rootston/input.h"
+
+void pointer_add(struct wlr_input_device *device, struct roots_input *input) {
+	struct roots_pointer *pointer = calloc(sizeof(struct roots_pointer), 1);
+	device->data = pointer;
+	pointer->device = device;
+	pointer->input = input;
+	wl_list_insert(&input->pointers, &pointer->link);
+	wlr_cursor_attach_input_device(input->cursor, device);
+	cursor_load_config(input->server->config, input->cursor,
+			input, input->server->desktop);
+}
+
+void pointer_remove(struct wlr_input_device *device, struct roots_input *input) {
+	struct roots_pointer *pointer = device->data;
+	wlr_cursor_detach_input_device(input->cursor, device);
+	wl_list_remove(&pointer->link);
+	free(pointer);
+}
diff --git a/rootston/wl_shell.c b/rootston/wl_shell.c
new file mode 100644
index 00000000..72725c7f
--- /dev/null
+++ b/rootston/wl_shell.c
@@ -0,0 +1,84 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/types/wlr_wl_shell.h>
+#include <wlr/util/log.h>
+#include "rootston/desktop.h"
+#include "rootston/server.h"
+#include "rootston/input.h"
+
+static void handle_move(struct wl_listener *listener, void *data) {
+	struct roots_wl_shell_surface *roots_surface =
+		wl_container_of(listener, roots_surface, request_move);
+	struct roots_view *view = roots_surface->view;
+	struct roots_input *input = view->desktop->server->input;
+	struct wlr_wl_shell_surface_move_event *e = data;
+
+	// TODO: Some of this might want to live in cursor.c I guess
+	struct roots_input_event *event = NULL;
+	size_t len = sizeof(input->input_events) / sizeof(*input->input_events);
+	for (size_t i = 0; i < len; ++i) {
+		if (input->input_events[i].cursor
+				&& input->input_events[i].serial == e->serial) {
+			event = &input->input_events[i];
+			break;
+		}
+	}
+	if (!event || input->mode != ROOTS_CURSOR_PASSTHROUGH) {
+		return;
+	}
+	input->mode = ROOTS_CURSOR_MOVE;
+	input->offs_x = input->cursor->x - view->x;
+	input->offs_y = input->cursor->y - view->y;
+	wlr_seat_pointer_clear_focus(input->wl_seat);
+}
+
+static void handle_destroy(struct wl_listener *listener, void *data) {
+	struct roots_wl_shell_surface *roots_surface =
+		wl_container_of(listener, roots_surface, destroy);
+	wl_list_remove(&roots_surface->destroy.link);
+	wl_list_remove(&roots_surface->ping_timeout.link);
+	wl_list_remove(&roots_surface->request_move.link);
+	wl_list_remove(&roots_surface->request_resize.link);
+	wl_list_remove(&roots_surface->request_set_fullscreen.link);
+	wl_list_remove(&roots_surface->request_set_maximized.link);
+	view_destroy(roots_surface->view);
+	free(roots_surface);
+}
+
+void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
+	struct roots_desktop *desktop =
+		wl_container_of(listener, desktop, wl_shell_surface);
+
+	struct wlr_wl_shell_surface *surface = data;
+	wlr_log(L_DEBUG, "new shell surface: title=%s, class=%s",
+		surface->title, surface->class);
+	wlr_wl_shell_surface_ping(surface);
+
+	struct roots_wl_shell_surface *roots_surface =
+		calloc(1, sizeof(struct roots_wl_shell_surface));
+	// TODO: all of the trimmings
+	wl_list_init(&roots_surface->destroy.link);
+	roots_surface->destroy.notify = handle_destroy;
+	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
+	wl_list_init(&roots_surface->ping_timeout.link);
+	wl_list_init(&roots_surface->request_move.link);
+	roots_surface->request_move.notify = handle_move;
+	wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
+	wl_list_init(&roots_surface->request_resize.link);
+	wl_list_init(&roots_surface->request_set_fullscreen.link);
+	wl_list_init(&roots_surface->request_set_maximized.link);
+
+	struct roots_view *view = calloc(1, sizeof(struct roots_view));
+	view->type = ROOTS_WL_SHELL_VIEW;
+	view->x = view->y = 200;
+	view->wl_shell_surface = surface;
+	view->roots_wl_shell_surface = roots_surface;
+	view->wlr_surface = surface->surface;
+	view->desktop = desktop;
+	roots_surface->view = view;
+	wl_list_insert(&desktop->views, &view->link);
+}
diff --git a/rootston/xdg_shell_v6.c b/rootston/xdg_shell_v6.c
new file mode 100644
index 00000000..4a809930
--- /dev/null
+++ b/rootston/xdg_shell_v6.c
@@ -0,0 +1,100 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+#include <wlr/util/log.h>
+#include "rootston/desktop.h"
+#include "rootston/server.h"
+#include "rootston/input.h"
+
+static void get_input_bounds(struct roots_view *view, struct wlr_box *box) {
+	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
+	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
+	memcpy(box, surf->geometry, sizeof(struct wlr_box));
+}
+
+static void activate(struct roots_view *view, bool active) {
+	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
+	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
+	if (surf->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		wlr_xdg_toplevel_v6_set_activated(surf, active);
+	}
+}
+
+static void handle_request_move(struct wl_listener *listener, void *data) {
+	struct roots_xdg_surface_v6 *roots_xdg_surface =
+		wl_container_of(listener, roots_xdg_surface, request_move);
+	struct roots_view *view = roots_xdg_surface->view;
+	struct roots_input *input = view->desktop->server->input;
+	struct wlr_xdg_toplevel_v6_move_event *e = data;
+
+	// TODO: Some of this might want to live in cursor.c I guess
+	struct roots_input_event *event = NULL;
+	size_t len = sizeof(input->input_events) / sizeof(*input->input_events);
+	for (size_t i = 0; i < len; ++i) {
+		if (input->input_events[i].cursor
+				&& input->input_events[i].serial == e->serial) {
+			event = &input->input_events[i];
+			break;
+		}
+	}
+	if (!event || input->mode != ROOTS_CURSOR_PASSTHROUGH) {
+		return;
+	}
+	input->mode = ROOTS_CURSOR_MOVE;
+	input->offs_x = input->cursor->x - view->x;
+	input->offs_y = input->cursor->y - view->y;
+	wlr_seat_pointer_clear_focus(input->wl_seat);
+}
+
+static void handle_destroy(struct wl_listener *listener, void *data) {
+	struct roots_xdg_surface_v6 *roots_xdg_surface =
+		wl_container_of(listener, roots_xdg_surface, destroy);
+	wl_list_remove(&roots_xdg_surface->destroy.link);
+	wl_list_remove(&roots_xdg_surface->ping_timeout.link);
+	wl_list_remove(&roots_xdg_surface->request_move.link);
+	wl_list_remove(&roots_xdg_surface->request_resize.link);
+	wl_list_remove(&roots_xdg_surface->request_show_window_menu.link);
+	wl_list_remove(&roots_xdg_surface->request_minimize.link);
+	view_destroy(roots_xdg_surface->view);
+	free(roots_xdg_surface);
+}
+
+void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
+	struct roots_desktop *desktop =
+		wl_container_of(listener, desktop, xdg_shell_v6_surface);
+
+	struct wlr_xdg_surface_v6 *surface = data;
+	wlr_log(L_DEBUG, "new xdg surface: title=%s, app_id=%s",
+		surface->title, surface->app_id);
+	wlr_xdg_surface_v6_ping(surface);
+
+	struct roots_xdg_surface_v6 *roots_surface =
+		calloc(1, sizeof(struct roots_xdg_surface_v6));
+	// TODO: all of the trimmings
+	wl_list_init(&roots_surface->destroy.link);
+	roots_surface->destroy.notify = handle_destroy;
+	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
+	wl_list_init(&roots_surface->ping_timeout.link);
+	wl_list_init(&roots_surface->request_minimize.link);
+	wl_list_init(&roots_surface->request_move.link);
+	roots_surface->request_move.notify = handle_request_move;
+	wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
+	wl_list_init(&roots_surface->request_resize.link);
+	wl_list_init(&roots_surface->request_show_window_menu.link);
+
+	struct roots_view *view = calloc(1, sizeof(struct roots_view));
+	view->type = ROOTS_XDG_SHELL_V6_VIEW;
+	view->x = view->y = 200;
+	view->xdg_surface_v6 = surface;
+	view->roots_xdg_surface_v6 = roots_surface;
+	view->wlr_surface = surface->surface;
+	view->get_input_bounds = get_input_bounds;
+	view->activate = activate;
+	view->desktop = desktop;
+	roots_surface->view = view;
+	wl_list_insert(&desktop->views, &view->link);
+}
diff --git a/rootston/xwayland.c b/rootston/xwayland.c
new file mode 100644
index 00000000..88965f0d
--- /dev/null
+++ b/rootston/xwayland.c
@@ -0,0 +1,49 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/xwayland.h>
+#include <wlr/util/log.h>
+#include "rootston/desktop.h"
+#include "rootston/server.h"
+
+static void handle_destroy(struct wl_listener *listener, void *data) {
+	struct roots_xwayland_surface *roots_surface =
+		wl_container_of(listener, roots_surface, destroy);
+	wl_list_remove(&roots_surface->destroy.link);
+	view_destroy(roots_surface->view);
+	free(roots_surface);
+}
+
+static void x11_activate(struct roots_view *view, bool active) {
+	wlr_xwayland_surface_activate(view->desktop->xwayland,
+		view->xwayland_surface);
+}
+
+void handle_xwayland_surface(struct wl_listener *listener, void *data) {
+	struct roots_desktop *desktop =
+		wl_container_of(listener, desktop, xwayland_surface);
+
+	struct wlr_xwayland_surface *surface = data;
+	// TODO: get and log title, class, etc
+	wlr_log(L_DEBUG, "new xwayland surface");
+
+	struct roots_xwayland_surface *roots_surface =
+		calloc(1, sizeof(struct roots_xwayland_surface));
+	wl_list_init(&roots_surface->destroy.link);
+	roots_surface->destroy.notify = handle_destroy;
+	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
+
+	struct roots_view *view = calloc(1, sizeof(struct roots_view));
+	view->type = ROOTS_XWAYLAND_VIEW;
+	view->x = view->y = 200;
+	view->xwayland_surface = surface;
+	view->roots_xwayland_surface = roots_surface;
+	view->wlr_surface = surface->surface;
+	view->desktop = desktop;
+	view->activate = x11_activate;
+	roots_surface->view = view;
+	wl_list_insert(&desktop->views, &view->link);
+}