Merge pull request #1397 from emersion/refactor-primary-selection

gtk-primary-selection: refactor everything, untie from seat

5 files changed, 84 insertions, 36 deletions

diff --git a/include/wlr/types/meson.build b/include/wlr/types/meson.build
index df611970..491d4a50 100644
--- a/include/wlr/types/meson.build
+++ b/include/wlr/types/meson.build
@@ -23,6 +23,7 @@ install_headers(
 	'wlr_output.h',
 	'wlr_pointer.h',
 	'wlr_presentation_time.h',
+	'wlr_primary_selection.h',
 	'wlr_region.h',
 	'wlr_screencopy_v1.h',
 	'wlr_screenshooter.h',
diff --git a/include/wlr/types/wlr_gtk_primary_selection.h b/include/wlr/types/wlr_gtk_primary_selection.h
index f3410f69..7cf34201 100644
--- a/include/wlr/types/wlr_gtk_primary_selection.h
+++ b/include/wlr/types/wlr_gtk_primary_selection.h
@@ -14,7 +14,8 @@
 
 struct wlr_gtk_primary_selection_device_manager {
 	struct wl_global *global;
-	struct wl_list resources;
+	struct wl_list resources; // wl_resource_get_link
+	struct wl_list devices; // wlr_gtk_primary_selection_device::link
 
 	struct wl_listener display_destroy;
 
@@ -25,30 +26,20 @@ struct wlr_gtk_primary_selection_device_manager {
 	void *data;
 };
 
-struct wlr_gtk_primary_selection_source {
-	// source metadata
-	struct wl_array mime_types;
-
-	// source implementation
-	void (*send)(struct wlr_gtk_primary_selection_source *source,
-		const char *mime_type, int32_t fd);
-	void (*cancel)(struct wlr_gtk_primary_selection_source *source);
-
-	// source status
-	struct wlr_seat_client *seat_client;
-
-	struct {
-		struct wl_signal destroy;
-	} events;
-
-	void *data;
-};
+/**
+ * A device is a per-seat object used to set and get the current selection.
+ */
+struct wlr_gtk_primary_selection_device {
+	struct wlr_gtk_primary_selection_device_manager *manager;
+	struct wlr_seat *seat;
+	struct wl_list link; // wlr_gtk_primary_selection_device_manager::devices
+	struct wl_list resources; // wl_resource_get_link
 
-struct wlr_gtk_primary_selection_offer {
-	struct wl_resource *resource;
-	struct wlr_gtk_primary_selection_source *source;
+	struct wl_list offers; // wl_resource_get_link
 
-	struct wl_listener source_destroy;
+	struct wl_listener seat_destroy;
+	struct wl_listener seat_focus_change;
+	struct wl_listener seat_primary_selection;
 
 	void *data;
 };
@@ -58,13 +49,4 @@ struct wlr_gtk_primary_selection_device_manager *
 void wlr_gtk_primary_selection_device_manager_destroy(
 	struct wlr_gtk_primary_selection_device_manager *manager);
 
-void wlr_seat_client_send_gtk_primary_selection(struct wlr_seat_client *seat_client);
-void wlr_seat_set_gtk_primary_selection(struct wlr_seat *seat,
-	struct wlr_gtk_primary_selection_source *source, uint32_t serial);
-
-void wlr_gtk_primary_selection_source_init(
-	struct wlr_gtk_primary_selection_source *source);
-void wlr_gtk_primary_selection_source_finish(
-	struct wlr_gtk_primary_selection_source *source);
-
 #endif
diff --git a/include/wlr/types/wlr_primary_selection.h b/include/wlr/types/wlr_primary_selection.h
new file mode 100644
index 00000000..9be61acc
--- /dev/null
+++ b/include/wlr/types/wlr_primary_selection.h
@@ -0,0 +1,54 @@
+/*
+ * This an unstable interface of wlroots. No guarantees are made regarding the
+ * future consistency of this API.
+ */
+#ifndef WLR_USE_UNSTABLE
+#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
+#endif
+
+#ifndef WLR_TYPES_WLR_PRIMARY_SELECTION_H
+#define WLR_TYPES_WLR_PRIMARY_SELECTION_H
+
+#include <wayland-server.h>
+#include <wlr/types/wlr_seat.h>
+
+struct wlr_primary_selection_source;
+
+/**
+ * A data source implementation. Only the `send` function is mandatory.
+ */
+struct wlr_primary_selection_source_impl {
+	void (*send)(struct wlr_primary_selection_source *source,
+		const char *mime_type, int fd);
+	void (*destroy)(struct wlr_primary_selection_source *source);
+};
+
+/**
+ * A source is the sending side of a selection.
+ */
+struct wlr_primary_selection_source {
+	const struct wlr_primary_selection_source_impl *impl;
+
+	// source metadata
+	struct wl_array mime_types;
+
+	struct {
+		struct wl_signal destroy;
+	} events;
+
+	void *data;
+};
+
+void wlr_primary_selection_source_init(
+	struct wlr_primary_selection_source *source,
+	const struct wlr_primary_selection_source_impl *impl);
+void wlr_primary_selection_source_destroy(
+	struct wlr_primary_selection_source *source);
+void wlr_primary_selection_source_send(
+	struct wlr_primary_selection_source *source, const char *mime_type,
+	int fd);
+
+void wlr_seat_set_primary_selection(struct wlr_seat *seat,
+	struct wlr_primary_selection_source *source);
+
+#endif
diff --git a/include/wlr/types/wlr_seat.h b/include/wlr/types/wlr_seat.h
index 9670e6a5..942a3420 100644
--- a/include/wlr/types/wlr_seat.h
+++ b/include/wlr/types/wlr_seat.h
@@ -30,7 +30,6 @@ struct wlr_seat_client {
 	struct wl_list keyboards;
 	struct wl_list touches;
 	struct wl_list data_devices;
-	struct wl_list primary_selection_devices;
 
 	struct {
 		struct wl_signal destroy;
@@ -168,6 +167,10 @@ struct wlr_seat_keyboard_state {
 
 	struct wlr_seat_keyboard_grab *grab;
 	struct wlr_seat_keyboard_grab *default_grab;
+
+	struct {
+		struct wl_signal focus_change; // wlr_seat_keyboard_focus_change_event
+	} events;
 };
 
 struct wlr_seat_touch_state {
@@ -181,6 +184,8 @@ struct wlr_seat_touch_state {
 	struct wlr_seat_touch_grab *default_grab;
 };
 
+struct wlr_primary_selection_source;
+
 struct wlr_seat {
 	struct wl_global *global;
 	struct wl_display *display;
@@ -194,8 +199,7 @@ struct wlr_seat {
 	struct wlr_data_source *selection_source;
 	uint32_t selection_serial;
 
-	struct wlr_gtk_primary_selection_source *primary_selection_source;
-	uint32_t primary_selection_serial;
+	struct wlr_primary_selection_source *primary_selection_source;
 
 	// `drag` goes away before `drag_source`, when the implicit grab ends
 	struct wlr_drag *drag;
@@ -248,6 +252,11 @@ struct wlr_seat_pointer_focus_change_event {
 	double sx, sy;
 };
 
+struct wlr_seat_keyboard_focus_change_event {
+	struct wlr_seat *seat;
+	struct wlr_surface *old_surface, *new_surface;
+};
+
 /**
  * Allocates a new wlr_seat and adds a wl_seat global to the display.
  */
diff --git a/include/wlr/xwayland.h b/include/wlr/xwayland.h
index 8247aa15..40cc8848 100644
--- a/include/wlr/xwayland.h
+++ b/include/wlr/xwayland.h
@@ -18,6 +18,7 @@
 
 struct wlr_xwm;
 struct wlr_xwayland_cursor;
+struct wlr_gtk_primary_selection_device_manager;
 
 struct wlr_xwayland {
 	pid_t pid;
@@ -42,13 +43,14 @@ struct wlr_xwayland {
 	struct wl_display *wl_display;
 	struct wlr_compositor *compositor;
 	struct wlr_seat *seat;
-	struct wl_listener seat_destroy;
 
 	struct {
 		struct wl_signal ready;
 		struct wl_signal new_surface;
 	} events;
 
+	struct wl_listener seat_destroy;
+
 	/**
 	 * Add a custom event handler to xwayland. Return 1 if the event was
 	 * handled or 0 to use the default wlr-xwayland handler. wlr-xwayland will