6 files changed, 422 insertions, 0 deletions
diff --git a/include/rootston/config.h b/include/rootston/config.h
new file mode 100644
index 00000000..0832d88d
--- /dev/null
+++ b/include/rootston/config.h
@@ -0,0 +1,51 @@
+#ifndef _ROOTSTON_CONFIG_H
+#define _ROOTSTON_CONFIG_H
+#include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_input_device.h>
+#include <wlr/types/wlr_cursor.h>
+
+struct output_config {
+	char *name;
+	enum wl_output_transform transform;
+	int x, y;
+	struct wl_list link;
+};
+
+struct device_config {
+	char *name;
+	char *mapped_output;
+	struct wlr_box *mapped_box;
+	struct wl_list link;
+};
+
+struct roots_config {
+	// TODO: Multiple cursors, multiseat
+	struct {
+		char *mapped_output;
+		struct wlr_box *mapped_box;
+	} cursor;
+
+	struct wl_list outputs;
+	struct wl_list devices;
+	char *config_path;
+};
+
+struct roots_config *parse_args(int argc, char *argv[]);
+
+void roots_config_destroy(struct roots_config *config);
+
+/**
+ * Get configuration for the output. If the output is not configured, returns
+ * NULL.
+ */
+struct output_config *config_get_output(struct roots_config *config,
+		struct wlr_output *output);
+
+/**
+ * Get configuration for the device. If the device is not configured, returns
+ * NULL.
+ */
+struct device_config *config_get_device(struct roots_config *config,
+		struct wlr_input_device *device);
+
+#endif
diff --git a/include/rootston/desktop.h b/include/rootston/desktop.h
new file mode 100644
index 00000000..5e138c11
--- /dev/null
+++ b/include/rootston/desktop.h
@@ -0,0 +1,64 @@
+#ifndef _ROOTSTON_DESKTOP_H
+#define _ROOTSTON_DESKTOP_H
+#include <time.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_output.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/types/wlr_gamma_control.h>
+#include "rootston/view.h"
+#include "rootston/config.h"
+
+struct roots_output {
+	struct roots_desktop *desktop;
+	struct wlr_output *wlr_output;
+	struct wl_listener frame;
+	struct wl_listener resolution;
+	struct timespec last_frame;
+	struct wl_list link;
+};
+
+struct roots_desktop {
+	struct wl_list views;
+
+	struct wl_list outputs;
+	struct timespec last_frame;
+
+	struct roots_server *server;
+	struct roots_config *config;
+
+	struct wlr_output_layout *layout;
+
+	struct wlr_compositor *compositor;
+	struct wlr_wl_shell *wl_shell;
+	struct wlr_xdg_shell_v6 *xdg_shell_v6;
+	struct wlr_xwayland *xwayland;
+	struct wlr_gamma_control_manager *gamma_control_manager;
+
+	struct wl_listener output_add;
+	struct wl_listener output_remove;
+	struct wl_listener xdg_shell_v6_surface;
+	struct wl_listener xwayland_surface;
+	struct wl_listener wl_shell_surface;
+};
+
+struct roots_server;
+
+struct roots_desktop *desktop_create(struct roots_server *server,
+		struct roots_config *config);
+void desktop_destroy(struct roots_desktop *desktop);
+
+void view_destroy(struct roots_view *view);
+struct roots_view *view_at(struct roots_desktop *desktop, int x, int y);
+void view_activate(struct roots_view *view, bool activate);
+
+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);
+void handle_wl_shell_surface(struct wl_listener *listener, void *data);
+void handle_xwayland_surface(struct wl_listener *listener, void *data);
+
+#endif
diff --git a/include/rootston/ini.h b/include/rootston/ini.h
new file mode 100644
index 00000000..2804255b
--- /dev/null
+++ b/include/rootston/ini.h
@@ -0,0 +1,93 @@
+/* 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
+
+*/
+
+#ifndef __INI_H__
+#define __INI_H__
+
+/* Make this header file easier to include in C++ code */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+
+/* Typedef for prototype of handler function. */
+typedef int (*ini_handler)(void* user, const char* section,
+                           const char* name, const char* value);
+
+/* Typedef for prototype of fgets-style reader function. */
+typedef char* (*ini_reader)(char* str, int num, void* stream);
+
+/* Parse given INI-style file. May have [section]s, name=value pairs
+   (whitespace stripped), and comments starting with ';' (semicolon). Section
+   is "" if name=value pair parsed before any section heading. name:value
+   pairs are also supported as a concession to Python's configparser.
+
+   For each name=value pair parsed, call handler function with given user
+   pointer as well as section, name, and value (data only valid for duration
+   of handler call). Handler should return nonzero on success, zero on error.
+
+   Returns 0 on success, line number of first error on parse error (doesn't
+   stop on first error), -1 on file open error, or -2 on memory allocation
+   error (only when INI_USE_STACK is zero).
+*/
+int ini_parse(const char* filename, ini_handler handler, void* user);
+
+/* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't
+   close the file when it's finished -- the caller must do that. */
+int ini_parse_file(FILE* file, ini_handler handler, void* user);
+
+/* Same as ini_parse(), but takes an ini_reader function pointer instead of
+   filename. Used for implementing custom or string-based I/O. */
+int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
+                     void* user);
+
+/* Nonzero to allow multi-line value parsing, in the style of Python's
+   configparser. If allowed, ini_parse() will call the handler with the same
+   name for each subsequent line parsed. */
+#ifndef INI_ALLOW_MULTILINE
+#define INI_ALLOW_MULTILINE 1
+#endif
+
+/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of
+   the file. See http://code.google.com/p/inih/issues/detail?id=21 */
+#ifndef INI_ALLOW_BOM
+#define INI_ALLOW_BOM 1
+#endif
+
+/* Nonzero to allow inline comments (with valid inline comment characters
+   specified by INI_INLINE_COMMENT_PREFIXES). Set to 0 to turn off and match
+   Python 3.2+ configparser behaviour. */
+#ifndef INI_ALLOW_INLINE_COMMENTS
+#define INI_ALLOW_INLINE_COMMENTS 1
+#endif
+#ifndef INI_INLINE_COMMENT_PREFIXES
+#define INI_INLINE_COMMENT_PREFIXES ";"
+#endif
+
+/* Nonzero to use stack, zero to use heap (malloc/free). */
+#ifndef INI_USE_STACK
+#define INI_USE_STACK 1
+#endif
+
+/* Stop parsing on first error (default is to keep parsing). */
+#ifndef INI_STOP_ON_FIRST_ERROR
+#define INI_STOP_ON_FIRST_ERROR 0
+#endif
+
+/* Maximum line length for any line in INI file. */
+#ifndef INI_MAX_LINE
+#define INI_MAX_LINE 2000
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INI_H__ */
diff --git a/include/rootston/input.h b/include/rootston/input.h
new file mode 100644
index 00000000..0ace6cd1
--- /dev/null
+++ b/include/rootston/input.h
@@ -0,0 +1,110 @@
+#ifndef _ROOTSTON_INPUT_H
+#define _ROOTSTON_INPUT_H
+#include <xkbcommon/xkbcommon.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_input_device.h>
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/types/wlr_seat.h>
+#include <wlr/xcursor.h>
+#include "rootston/config.h"
+#include "rootston/view.h"
+#include "rootston/server.h"
+
+struct roots_keyboard {
+	struct roots_input *input;
+	struct wlr_input_device *device;
+	struct wl_listener key;
+	struct wl_list link;
+};
+
+struct roots_pointer {
+	struct roots_input *input;
+	struct wlr_input_device *device;
+	// We don't listen to any pointer events directly - they go through
+	// wlr_cursor
+	struct wl_list link;
+};
+
+struct roots_touch {
+	struct roots_input *input;
+	struct wlr_input_device *device;
+	struct wl_listener down;
+	struct wl_listener up;
+	struct wl_listener motion;
+	struct wl_listener cancel;
+	struct wl_list link;
+};
+
+// TODO: tablet pad
+struct roots_tablet_tool {
+	struct roots_input *input;
+	struct wlr_input_device *device;
+	struct wl_listener axis;
+	struct wl_listener proximity;
+	struct wl_listener tip;
+	struct wl_listener button;
+	struct wl_list link;
+};
+
+enum roots_cursor_mode {
+	ROOTS_CURSOR_PASSTHROUGH = 0,
+	ROOTS_CURSOR_MOVE = 1,
+	ROOTS_CURSOR_RESIZE = 2,
+	ROOTS_CURSOR_ROTATE = 3,
+};
+
+struct roots_input_event {
+	uint32_t serial;
+	struct wlr_cursor *cursor;
+	struct wlr_input_device *device;
+};
+
+struct roots_input {
+	struct roots_config *config;
+	struct roots_server *server;
+
+	// TODO: multiseat, multicursor
+	struct wlr_cursor *cursor;
+	struct wlr_xcursor *xcursor;
+	struct wlr_seat *wl_seat;
+
+	enum roots_cursor_mode mode;
+	struct roots_view *active_view;
+	int offs_x, offs_y;
+
+	// Ring buffer of input events that could trigger move/resize/rotate
+	int input_events_idx;
+	struct roots_input_event input_events[16];
+
+	struct wl_list keyboards;
+	struct wl_list pointers;
+	struct wl_list touch;
+	struct wl_list tablet_tools;
+
+	struct wl_listener input_add;
+	struct wl_listener input_remove;
+
+	struct wl_listener cursor_motion;
+	struct wl_listener cursor_motion_absolute;
+	struct wl_listener cursor_button;
+	struct wl_listener cursor_axis;
+	struct wl_listener cursor_tool_axis;
+	struct wl_listener cursor_tool_tip;
+};
+
+struct roots_input *input_create(struct roots_server *server,
+		struct roots_config *config);
+void input_destroy(struct roots_input *input);
+
+void pointer_add(struct wlr_input_device *device, struct roots_input *input);
+void pointer_remove(struct wlr_input_device *device, struct roots_input *input);
+void keyboard_add(struct wlr_input_device *device, struct roots_input *input);
+void keyboard_remove(struct wlr_input_device *device, struct roots_input *input);
+
+void cursor_initialize(struct roots_input *input);
+void cursor_load_config(struct roots_config *config,
+		struct wlr_cursor *cursor,
+		struct roots_input *input,
+		struct roots_desktop *desktop);
+
+#endif
diff --git a/include/rootston/server.h b/include/rootston/server.h
new file mode 100644
index 00000000..15e3a4ee
--- /dev/null
+++ b/include/rootston/server.h
@@ -0,0 +1,33 @@
+#ifndef _ROOTSTON_SERVER_H
+#define _ROOTSTON_SERVER_H
+#include <wayland-server.h>
+#include <wlr/backend.h>
+#include <wlr/backend/session.h>
+#include <wlr/types/wlr_data_device_manager.h>
+#include <wlr/render.h>
+#include <wlr/xwayland.h>
+#include "rootston/config.h"
+#include "rootston/desktop.h"
+#include "rootston/input.h"
+
+struct roots_server {
+	/* Rootston resources */
+	struct roots_config *config;
+	struct roots_desktop *desktop;
+	struct roots_input *input;
+
+	/* Wayland resources */
+	struct wl_display *wl_display;
+	struct wl_event_loop *wl_event_loop;
+
+	/* WLR tools */
+	struct wlr_backend *backend;
+	struct wlr_renderer *renderer;
+
+	/* Global resources */
+	struct wlr_data_device_manager *data_device_manager;
+};
+
+extern struct roots_server server;
+
+#endif
diff --git a/include/rootston/view.h b/include/rootston/view.h
new file mode 100644
index 00000000..9cc2fe04
--- /dev/null
+++ b/include/rootston/view.h
@@ -0,0 +1,71 @@
+#ifndef _ROOTSTON_VIEW_H
+#define _ROOTSTON_VIEW_H
+#include <stdbool.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/types/wlr_xdg_shell_v6.h>
+
+struct roots_wl_shell_surface {
+	struct roots_view *view;
+	// 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_fullscreen;
+	struct wl_listener request_set_maximized;
+};
+
+struct roots_xdg_surface_v6 {
+	struct roots_view *view;
+	// TODO: Maybe destroy listener should go in roots_view
+	struct wl_listener destroy;
+	struct wl_listener ping_timeout;
+	struct wl_listener request_minimize;
+	struct wl_listener request_move;
+	struct wl_listener request_resize;
+	struct wl_listener request_show_window_menu;
+};
+
+struct roots_xwayland_surface {
+	struct roots_view *view;
+	// TODO: Maybe destroy listener should go in roots_view
+	struct wl_listener destroy;
+};
+
+enum roots_view_type {
+	ROOTS_WL_SHELL_VIEW,
+	ROOTS_XDG_SHELL_V6_VIEW,
+	ROOTS_XWAYLAND_VIEW,
+};
+
+struct roots_view {
+	struct roots_desktop *desktop;
+	double x, y;
+	float rotation;
+	// TODO: Something for roots-enforced width/height
+	enum roots_view_type type;
+	union {
+		struct wlr_wl_shell_surface *wl_shell_surface;
+		struct wlr_xdg_surface_v6 *xdg_surface_v6;
+		struct wlr_xwayland_surface *xwayland_surface;
+	};
+	union {
+		struct roots_wl_shell_surface *roots_wl_shell_surface;
+		struct roots_xdg_surface_v6 *roots_xdg_surface_v6;
+		struct roots_xwayland_surface *roots_xwayland_surface;
+	};
+	struct wlr_surface *wlr_surface;
+	struct wl_list link;
+	// 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
+	// elsewhere
+	void (*get_input_bounds)(struct roots_view *view, struct wlr_box *box);
+	void (*activate)(struct roots_view *view, bool active);
+};
+
+void view_get_input_bounds(struct roots_view *view, struct wlr_box *box);
+void view_activate(struct roots_view *view, bool active);
+
+#endif