seat: Add implementation for selection source

This functionality will be used by ds_data_device_manager in future
patches.

Change-Id: Id1863f243ab718fff2aeee7cfa515a4c96e66b4d

diff --git a/include/libds/seat.h b/include/libds/seat.h
index 8790bf9..aced712 100644 (file)
--- a/include/libds/seat.h
+++ b/include/libds/seat.h
@@ -7,6 +7,7 @@
 #include <libds/input_device.h>
 #include <libds/keyboard.h>
 #include <libds/surface.h>
+#include <libds/data_device.h>
 
 struct ds_seat;
 
@@ -201,4 +202,7 @@ void ds_seat_touch_end_grab(struct ds_seat *seat);
 void ds_seat_touch_add_grab_start_listener(struct ds_seat *seat,
         struct wl_listener *listener);
 
+void ds_seat_set_selection(struct ds_seat *seat, struct ds_data_source *source,
+        uint32_t serial);
+
 #endif

diff --git a/src/seat.h b/src/seat.h
index 94275f5..59a1d10 100644 (file)
--- a/src/seat.h
+++ b/src/seat.h
@@ -31,6 +31,16 @@ struct ds_seat_touch_grab
     void *data;
 };
 
+void ds_seat_add_set_selection_listener(struct ds_seat *seat,
+        struct wl_listener *listener);
+
+struct ds_data_source *ds_seat_get_selection(struct ds_seat *seat);
+
+struct ds_seat_client *ds_seat_client_from_resource(
+        struct wl_resource *resource);
+
+struct ds_seat *ds_seat_client_get_seat(struct ds_seat_client *seat_client);
+
 void ds_seat_pointer_enter(struct ds_seat *seat, struct ds_surface *surface,
         double sx, double sy);
 

diff --git a/src/seat/seat.c b/src/seat/seat.c
index 36ed366..52a0d8d 100644 (file)
--- a/src/seat/seat.c
+++ b/src/seat/seat.c
@@ -1,5 +1,6 @@
 #include "config.h"
 
+#include <assert.h>
 #define _POSIX_C_SOURCE 200809L
 #include <stdint.h>
 #include <stdlib.h>
@@ -10,10 +11,14 @@
 
 #define SEAT_VERSION 7
 
+static const struct wl_seat_interface seat_impl;
+
 static void seat_handle_bind(struct wl_client *wl_client, void *data,
         uint32_t version, uint32_t id);
 static void seat_handle_display_destroy(struct wl_listener *listener,
         void *data);
+static void seat_handle_selection_source_destroy(struct wl_listener *listener,
+        void *data);
 static void seat_destroy(struct ds_seat *seat);
 static struct ds_seat_client *seat_client_create(struct ds_seat *seat,
         struct wl_client *wl_client);
@@ -65,6 +70,7 @@ ds_seat_create(struct wl_display *display, const char *name)
     wl_signal_init(&seat->events.keyboard_grab_end);
     wl_signal_init(&seat->events.touch_grab_begin);
     wl_signal_init(&seat->events.touch_grab_end);
+    wl_signal_init(&seat->events.set_selection);
 
     seat->display_destroy.notify = seat_handle_display_destroy;
     wl_display_add_destroy_listener(display, &seat->display_destroy);
@@ -149,6 +155,13 @@ ds_seat_client_for_wl_client(struct ds_seat *seat, struct wl_client *wl_client)
     return seat_client_for_wl_client(seat, wl_client);
 }
 
+WL_EXPORT struct ds_seat_client *
+ds_seat_client_from_resource(struct wl_resource *resource)
+{
+    assert(wl_resource_instance_of(resource, &wl_seat_interface, &seat_impl));
+    return wl_resource_get_user_data(resource);
+}
+
 WL_EXPORT void
 ds_seat_client_add_destroy_listener(struct ds_seat_client *seat_client,
         struct wl_listener *listener)
@@ -156,6 +169,64 @@ ds_seat_client_add_destroy_listener(struct ds_seat_client *seat_client,
     wl_signal_add(&seat_client->events.destroy, listener);
 }
 
+WL_EXPORT void
+ds_seat_set_selection(struct ds_seat *seat, struct ds_data_source *source,
+        uint32_t serial)
+{
+    if (seat->selection_source &&
+            seat->selection_serial - serial < UINT32_MAX / 2) {
+        ds_dbg("Rejecting set selection selection_serial(%d) serial(%d)",
+                seat->selection_serial, serial);
+        return;
+    }
+
+    seat->selection_serial = serial;
+
+    if (seat->selection_source == source)
+        return;
+
+    if (seat->selection_source) {
+        /* TODO
+        wl_list_remove(&seat->selection_source_destroy.link);
+        ds_data_source_destroy(seat->selection_source);
+        */
+        seat->selection_source = NULL;
+
+    }
+
+    if (source) {
+        /* TODO
+        seat->selection_source_destroy.notify =
+            seat_handle_selection_source_destroy;
+        wl_signal_add(&source->events.destroy,
+                &seat->selection_source_destroy);
+        */
+
+        seat->selection_source = source;
+    }
+
+    wl_signal_emit(&seat->events.set_selection, seat);
+}
+
+struct ds_data_source *
+ds_seat_get_selection(struct ds_seat *seat)
+{
+    return seat->selection_source;
+}
+
+struct ds_seat *
+ds_seat_client_get_seat(struct ds_seat_client *seat_client)
+{
+    return seat_client->seat;
+}
+
+void
+ds_seat_add_set_selection_listener(struct ds_seat *seat,
+        struct wl_listener *listener)
+{
+    wl_signal_add(&seat->events.set_selection, listener);
+}
+
 struct ds_seat_client *
 seat_client_for_wl_client(struct ds_seat *seat, struct wl_client *wl_client)
 {
@@ -339,6 +410,20 @@ seat_handle_display_destroy(struct wl_listener *listener, void *data)
 }
 
 static void
+seat_handle_selection_source_destroy(struct wl_listener *listener,
+        void *data)
+{
+    struct ds_seat *seat;
+
+    seat = wl_container_of(listener, seat, selection_source_destroy);
+
+    wl_list_remove(&seat->selection_source_destroy.link);
+    seat->selection_source = NULL;
+
+    wl_signal_emit(&seat->events.set_selection, seat);
+}
+
+static void
 seat_destroy(struct ds_seat *seat)
 {
     struct ds_seat_client *seat_client, *tmp;

diff --git a/src/seat/seat_private.h b/src/seat/seat_private.h
index 0211a72..4c6833d 100644 (file)
--- a/src/seat/seat_private.h
+++ b/src/seat/seat_private.h
@@ -120,6 +120,9 @@ struct ds_seat
     struct wl_display *display;
     struct wl_global *global;
 
+    struct ds_data_source *selection_source;
+    uint32_t selection_serial;
+
     struct wl_list clients; // ds_seat_client::link
 
     struct ds_seat_pointer pointer;
@@ -127,6 +130,7 @@ struct ds_seat
     struct ds_seat_touch touch;
 
     struct wl_listener display_destroy;
+    struct wl_listener selection_source_destroy;
 
     struct {
         struct wl_signal destroy;
@@ -139,6 +143,9 @@ struct ds_seat
 
         struct wl_signal touch_grab_begin;
         struct wl_signal touch_grab_end;
+
+        struct wl_signal set_selection;
+        struct wl_signal start_drag;
     } events;
 };