7 files changed, 120 insertions, 79 deletions
diff --git a/include/rootston/input.h b/include/rootston/input.h
index ddd5a05d..aacb3016 100644
--- a/include/rootston/input.h
+++ b/include/rootston/input.h
@@ -64,6 +64,18 @@ struct roots_input_event {
 	struct wlr_input_device *device;
 };
 
+struct roots_drag_icon {
+	struct wlr_surface *surface;
+	struct wl_list link; // roots_input::drag_icons
+	bool mapped;
+
+	int32_t sx;
+	int32_t sy;
+
+	struct wl_listener surface_destroy;
+	struct wl_listener surface_commit;
+};
+
 struct roots_touch_point {
 	struct roots_touch *device;
 	int32_t slot;
@@ -80,6 +92,7 @@ struct roots_input {
 	struct wlr_xcursor_theme *theme;
 	struct wlr_xcursor *xcursor;
 	struct wlr_seat *wl_seat;
+	struct wl_list drag_icons;
 	struct wl_client *cursor_client;
 
 	enum roots_cursor_mode mode;
@@ -113,6 +126,7 @@ struct roots_input {
 	struct wl_listener cursor_tool_axis;
 	struct wl_listener cursor_tool_tip;
 
+	struct wl_listener pointer_grab_begin;
 	struct wl_list touch_points;
 
 	struct wl_listener pointer_grab_end;
diff --git a/include/rootston/server.h b/include/rootston/server.h
index a4eacb7f..8fc6530e 100644
--- a/include/rootston/server.h
+++ b/include/rootston/server.h
@@ -3,7 +3,7 @@
 #include <wayland-server.h>
 #include <wlr/backend.h>
 #include <wlr/backend/session.h>
-#include <wlr/types/wlr_data_device_manager.h>
+#include <wlr/types/wlr_data_device.h>
 #include <wlr/render.h>
 #ifdef HAS_XWAYLAND
 #include <wlr/xwayland.h>
diff --git a/include/wlr/interfaces/wlr_data_source.h b/include/wlr/interfaces/wlr_data_source.h
deleted file mode 100644
index 821bdea0..00000000
--- a/include/wlr/interfaces/wlr_data_source.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef WLR_INTERFACES_WLR_DATA_SOURCE_H
-#define WLR_INTERFACES_WLR_DATA_SOURCE_H
-
-#include <wlr/types/wlr_data_source.h>
-
-struct wlr_data_source_impl {
-	void (*send)(struct wlr_data_source *data_source, const char *type, int fd);
-	void (*accepted)(struct wlr_data_source *data_source, const char *type);
-	void (*cancelled)(struct wlr_data_source *data_source);
-};
-
-bool wlr_data_source_init(struct wlr_data_source *source,
-		struct wlr_data_source_impl *impl);
-void wlr_data_source_finish(struct wlr_data_source *source);
-
-#endif
diff --git a/include/wlr/types/wlr_data_device.h b/include/wlr/types/wlr_data_device.h
new file mode 100644
index 00000000..e1e1e516
--- /dev/null
+++ b/include/wlr/types/wlr_data_device.h
@@ -0,0 +1,89 @@
+#ifndef WLR_TYPES_WLR_DATA_DEVICE_H
+#define WLR_TYPES_WLR_DATA_DEVICE_H
+
+#include <wayland-server.h>
+#include <wlr/types/wlr_seat.h>
+
+extern const struct
+wlr_pointer_grab_interface wlr_data_device_pointer_drag_interface;
+
+extern const struct
+wlr_keyboard_grab_interface wlr_data_device_keyboard_drag_interface;
+
+struct wlr_data_device_manager {
+	struct wl_global *global;
+};
+
+struct wlr_data_offer {
+	struct wl_resource *resource;
+	struct wlr_data_source *source;
+
+	uint32_t dnd_actions;
+	enum wl_data_device_manager_dnd_action preferred_dnd_action;
+	bool in_ask;
+
+	struct wl_listener source_destroy;
+};
+
+struct wlr_data_source {
+	struct wl_resource *resource;
+	struct wlr_data_offer *offer;
+	struct wlr_seat_handle *seat;
+	struct wl_array mime_types;
+
+	bool accepted;
+
+	// drag and drop
+	enum wl_data_device_manager_dnd_action current_dnd_action;
+	uint32_t dnd_actions;
+	uint32_t compositor_action;
+	bool actions_set;
+
+	void (*accept)(struct wlr_data_source *source, uint32_t serial,
+			const char *mime_type);
+	void (*send)(struct wlr_data_source *source, const char *mime_type,
+			int32_t fd);
+	void (*cancel)(struct wlr_data_source *source);
+
+	struct {
+		struct wl_signal destroy;
+	} events;
+};
+
+struct wlr_drag {
+	struct wlr_seat_pointer_grab pointer_grab;
+	struct wlr_seat_keyboard_grab keyboard_grab;
+
+	struct wlr_seat_handle *handle;
+	struct wlr_seat_handle *focus_handle;
+
+	struct wlr_surface *icon;
+	struct wlr_surface *focus;
+	struct wlr_data_source *source;
+
+	struct wl_listener icon_destroy;
+	struct wl_listener source_destroy;
+	struct wl_listener handle_unbound;
+};
+
+/**
+ * Create a wl data device manager global for this display.
+ */
+struct wlr_data_device_manager *wlr_data_device_manager_create(
+		struct wl_display *display);
+
+/**
+ * Creates a new wl_data_offer if there is a wl_data_source currently set as the
+ * seat selection and sends it to the client for this handle, followed by the
+ * wl_data_device.selection() event.
+ * If there is no current selection, the wl_data_device.selection() event will
+ * carry a NULL wl_data_offer.
+ * If the client does not have a wl_data_device for the seat nothing * will be
+ * done.
+ */
+void wlr_seat_handle_send_selection(struct wlr_seat_handle *handle);
+
+void wlr_seat_set_selection(struct wlr_seat *seat,
+		struct wlr_data_source *source, uint32_t serial);
+
+#endif
diff --git a/include/wlr/types/wlr_data_device_manager.h b/include/wlr/types/wlr_data_device_manager.h
deleted file mode 100644
index 500f8acd..00000000
--- a/include/wlr/types/wlr_data_device_manager.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef WLR_TYPES_WLR_DATA_DEVICE_MANAGER_H
-#define WLR_TYPES_WLR_DATA_DEVICE_MANAGER_H
-
-#include <wayland-server.h>
-
-struct wlr_data_device_manager {
-	struct wl_global *global;
-};
-
-struct wlr_data_device_manager *wlr_data_device_manager_create(struct wl_display *dpy);
-void wlr_data_device_manager_destroy(struct wlr_data_device_manager *manager);
-
-struct wlr_data_device {
-	struct wlr_seat *seat;
-	struct wlr_data_source *selection;
-	struct wl_listener selection_destroyed;
-
-	struct {
-		struct wl_signal selection_change;
-	} events;
-};
-
-void wlr_data_device_set_selection(struct wlr_data_device *manager,
-		struct wlr_data_source *source);
-
-#endif
diff --git a/include/wlr/types/wlr_data_source.h b/include/wlr/types/wlr_data_source.h
deleted file mode 100644
index 19834cb6..00000000
--- a/include/wlr/types/wlr_data_source.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef WLR_TYPES_WLR_DATA_SOURCE_H
-#define WLR_TYPES_WLR_DATA_SOURCE_H
-
-#include <wayland-server.h>
-#include <wlr/util/list.h>
-
-struct wlr_data_source_impl;
-
-struct wlr_data_source {
-	struct wlr_data_source_impl *impl;
-	list_t *types;
-	void *data;
-
-	struct {
-		struct wl_signal destroy;
-	} events;
-};
-
-void wlr_data_source_send(struct wlr_data_source *src, const char *type, int fd);
-void wlr_data_source_accepted(struct wlr_data_source *src, const char *type);
-void wlr_data_source_cancelled(struct wlr_data_source *src);
-
-struct wlr_wl_data_source {
-	struct wlr_data_source base;
-	struct wl_resource *resource;
-};
-
-struct wlr_wl_data_source *wlr_wl_data_source_create(
-		struct wl_client *client,
-		uint32_t version, uint32_t id);
-
-#endif
diff --git a/include/wlr/types/wlr_seat.h b/include/wlr/types/wlr_seat.h
index d267924c..f5d5c357 100644
--- a/include/wlr/types/wlr_seat.h
+++ b/include/wlr/types/wlr_seat.h
@@ -75,11 +75,16 @@ struct wlr_seat_pointer_state {
 	struct wlr_seat_handle *focused_handle;
 	struct wlr_surface *focused_surface;
 
-	struct wl_listener surface_destroy;
-	struct wl_listener resource_destroy;
-
 	struct wlr_seat_pointer_grab *grab;
 	struct wlr_seat_pointer_grab *default_grab;
+
+	uint32_t button_count;
+	uint32_t grab_button;
+	uint32_t grab_serial;
+	uint32_t grab_time;
+
+	struct wl_listener surface_destroy;
+	struct wl_listener resource_destroy;
 };
 
 struct wlr_seat_keyboard {
@@ -111,11 +116,16 @@ struct wlr_seat {
 	struct wl_list keyboards;
 	char *name;
 	uint32_t capabilities;
-	struct wlr_data_device *data_device;
+
+	struct wlr_data_device *data_device; // TODO needed?
+	struct wlr_data_source *selection_source;
+	uint32_t selection_serial;
 
 	struct wlr_seat_pointer_state pointer_state;
 	struct wlr_seat_keyboard_state keyboard_state;
 
+	struct wl_listener selection_data_source_destroy;
+
 	struct {
 		struct wl_signal client_bound;
 		struct wl_signal client_unbound;
@@ -127,6 +137,8 @@ struct wlr_seat {
 		struct wl_signal keyboard_grab_end;
 
 		struct wl_signal request_set_cursor;
+
+		struct wl_signal selection;
 	} events;
 
 	void *data;