Merge pull request #760 from emersion/xwayland-dnd

xwayland: add drag'n'drop support

1 files changed, 72 insertions, 0 deletions

diff --git a/include/xwayland/selection.h b/include/xwayland/selection.h
new file mode 100644
index 00000000..bb3a894d
--- /dev/null
+++ b/include/xwayland/selection.h
@@ -0,0 +1,72 @@
+#ifndef XWAYLAND_SELECTION_H
+#define XWAYLAND_SELECTION_H
+
+#include <xcb/xfixes.h>
+
+#define INCR_CHUNK_SIZE (64 * 1024)
+
+#define XDND_VERSION 5
+
+struct wlr_xwm_selection;
+
+struct wlr_xwm_selection_transfer {
+	struct wlr_xwm_selection *selection;
+
+	bool incr;
+	bool flush_property_on_delete;
+	bool property_set;
+	struct wl_array source_data;
+	int source_fd;
+	struct wl_event_source *source;
+
+	// when sending to x11
+	xcb_selection_request_event_t request;
+	struct wl_list outgoing_link;
+
+	// when receiving from x11
+	int property_start;
+	xcb_get_property_reply_t *property_reply;
+};
+
+struct wlr_xwm_selection {
+	struct wlr_xwm *xwm;
+	xcb_atom_t atom;
+	xcb_window_t window;
+	xcb_window_t owner;
+	xcb_timestamp_t timestamp;
+
+	struct wlr_xwm_selection_transfer incoming;
+	struct wl_list outgoing;
+};
+
+void xwm_selection_transfer_remove_source(
+	struct wlr_xwm_selection_transfer *transfer);
+void xwm_selection_transfer_close_source_fd(
+	struct wlr_xwm_selection_transfer *transfer);
+void xwm_selection_transfer_destroy_property_reply(
+	struct wlr_xwm_selection_transfer *transfer);
+
+xcb_atom_t xwm_mime_type_to_atom(struct wlr_xwm *xwm, char *mime_type);
+char *xwm_mime_type_from_atom(struct wlr_xwm *xwm, xcb_atom_t atom);
+struct wlr_xwm_selection *xwm_get_selection(struct wlr_xwm *xwm,
+	xcb_atom_t selection_atom);
+
+void xwm_send_incr_chunk(struct wlr_xwm_selection_transfer *transfer);
+void xwm_handle_selection_request(struct wlr_xwm *xwm,
+	xcb_selection_request_event_t *req);
+
+void xwm_get_incr_chunk(struct wlr_xwm_selection_transfer *transfer);
+void xwm_handle_selection_notify(struct wlr_xwm *xwm,
+	xcb_selection_notify_event_t *event);
+int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
+	xcb_xfixes_selection_notify_event_t *event);
+bool wlr_data_source_is_xwayland_data_source(struct wlr_data_source *wlr_source);
+bool wlr_primary_selection_source_is_xwayland_primary_selection_source(
+	struct wlr_primary_selection_source *wlr_source);
+
+void xwm_seat_handle_start_drag(struct wlr_xwm *xwm, struct wlr_drag *drag);
+
+void xwm_selection_init(struct wlr_xwm *xwm);
+void xwm_selection_finish(struct wlr_xwm *xwm);
+
+#endif