Fix dispatch of leave events with built-in move

* 12to11-test.xml (test_manager) <error>: New error
`resize_rejected'.
<resize_edge>: New enum.
(test_surface) <move_resize, resize_finished>: New events and
requests.

* compositor.h: Update prototypes.

* seat.c (CancelResizeOperation): Fix dangling pointer.
(FakePointerEdge):
(HandlePointerEdge): Always use builtin resize on test seats.
(XLMoveToplevel): Return status code.

* test.c (struct _TestSurface): New field `resize_callbacks'.
(HandleResizeDone): New function.
(DestroyBacking): Free resize callbacks.
(GetResizeDimensions, MoveResize): New functions.
(test_surface_impl, GetTestSurface): Attach new role hooks etc.

* tests/seat_test.c (enum test_expect_event_kind): New event
kind.
(struct test_recorded_button_event): Add serial field.  Set it.
(struct test_recorded_resize_finished_event): New struct.
(enum test_kind): New test.
(test_names): Name that test.
(LAST_TEST): Set it to the new test.
(run_resize_test, test_single_step): Implement the new test.
(expect_button_event): Return the serial of the button event.
(expect_surface_enter, handle_test_surface_resize_finished)
(test_surface_listener, handle_pointer_button)
(handle_keyboard_enter): Adjust for changes to event handling.

12to11-test.xml

@@ -55,6 +55,26 @@
 	     summary="the specified label is invalid"/>
       <entry name="invalid_user_time" value="12"
 	     summary="the specified user time lies in the past"/>
+      <entry name="resize_rejected" value="13"
+	     summary="the resize was rejected"/>
+    </enum>
+
+
+    <enum name="resize_edge">
+      <description summary="edge values for resizing">
+	These values are used to indicate which edge of a surface
+	is being dragged in a resize or move operation.
+      </description>
+      <entry name="none" value="0"/>
+      <entry name="top" value="1"/>
+      <entry name="bottom" value="2"/>
+      <entry name="left" value="4"/>
+      <entry name="top_left" value="5"/>
+      <entry name="bottom_left" value="6"/>
+      <entry name="right" value="8"/>
+      <entry name="top_right" value="9"/>
+      <entry name="bottom_right" value="10"/>
+      <entry name="move" value="11"/>
     </enum>
 
     <request name="get_test_surface">
@@ -155,12 +175,25 @@
     </request>
 
     <request name="set_always_garbage">
-      <description summary="set_always_garbage">
+      <description summary="set always garbage">
 	Force the subcompositor to be garbaged, and all contents
 	redrawn from scratch upon any damage.
       </description>
     </request>
 
+    <request name="move_resize">
+      <description summary="begin move or resize">
+	Begin a move or resize event with the specified resize edge
+	and event serial on the given seat.  Send a resize_rejected
+	event if the edge is invalid or the serial is out of date, or
+	the specified role no longer has a surface.
+      </description>
+      <arg name="edge" type="uint" summary="the resize edge"/>
+      <arg name="serial" type="uint" summary="the resize serial"/>
+      <arg name="seat" type="object" interface="wl_seat"
+	   summary="the resize seat"/>
+    </request>
+
     <event name="mapped">
       <description summary="role initialized">
 	The map event is sent once the window is mapped and its
@@ -208,6 +241,13 @@
       </description>
       <arg name="presentation_hint" type="uint"/>
     </event>
+
+    <event name="resize_finished">
+      <description summary="resize finished">
+	The resize_finished event is sent immediately after a resize
+	completes.
+      </description>
+    </event>
   </interface>
 
   <interface name="test_scale_lock" version="1">

compositor.h

@@ -1632,7 +1632,7 @@ extern void XLDispatchGEForSeats (XEvent *, Surface *,
 extern void XLSelectStandardEvents (Window);
 extern void XLInitSeats (void);
 extern Bool XLResizeToplevel (Seat *, Surface *, uint32_t, uint32_t);
-extern void XLMoveToplevel (Seat *, Surface *, uint32_t);
+extern Bool XLMoveToplevel (Seat *, Surface *, uint32_t);
 extern Bool XLSeatExplicitlyGrabSurface (Seat *, Surface *, uint32_t);
 
 extern void *XLSeatRunAfterResize (Seat *, void (*) (void *, void *),

seat.c

@@ -2051,6 +2051,7 @@ CancelResizeOperation (Seat *seat, Time time, Subcompositor *subcompositor,
   /* Stop the resize operation.  */
   XLSurfaceCancelUnmapCallback (seat->resize_surface_callback);
   seat->resize_surface = NULL;
+  seat->resize_surface_callback = NULL;
 
   /* Run resize completion callbacks.  */
   RunResizeDoneCallbacks (seat);
@@ -5098,6 +5099,8 @@ FakePointerEdge (Seat *seat, Surface *target, uint32_t serial,
   XISetMask (mask.mask, XI_ButtonPress);
   XISetMask (mask.mask, XI_ButtonRelease);
 
+  if (!(seat->flags & IsTestSeat))
+    {
       /* Grab the pointer, and don't let go until the button is
 	 released.  */
       state = XIGrabDevice (compositor.display, seat->master_pointer,
@@ -5106,14 +5109,21 @@ FakePointerEdge (Seat *seat, Surface *target, uint32_t serial,
 
       if (state != Success)
 	return False;
+    }
 
   /* On the other hand, cancel focus locking and leave the surface,
      since we will not be reporting motion events until the resize
      operation completes.  */
 
   if (seat->grab_held)
+    {
       CancelGrabEarly (seat);
 
+      /* CancelGrabEarly may not have left the focus surface if the
+	 pointer remains on it.  Force a leave event to be sent.  */
+      EnteredSurface (seat, NULL, seat->its_press_time, 0, 0, False);
+    }
+
   /* Set the surface as the surface undergoing resize.  */
   seat->resize_surface = target;
   seat->resize_surface_callback
@@ -5139,6 +5149,7 @@ HandlePointerEdge (Seat *seat, Surface *target, uint32_t serial,
     return False;
 
   if (!XLWmSupportsHint (_NET_WM_MOVERESIZE)
+      || (seat->flags & IsTestSeat)
       || getenv ("USE_BUILTIN_RESIZE"))
     return FakePointerEdge (seat, target, serial, edge);
 
@@ -5417,10 +5428,10 @@ XLResizeToplevel (Seat *seat, Surface *surface, uint32_t serial,
   return StartResizeTracking (seat, surface, serial, edge);
 }
 
-void
+Bool
 XLMoveToplevel (Seat *seat, Surface *surface, uint32_t serial)
 {
-  StartResizeTracking (seat, surface, serial, MoveEdge);
+  return StartResizeTracking (seat, surface, serial, MoveEdge);
 }
 
 void *

test.c

@@ -47,6 +47,9 @@ struct _TestSurface
   /* The associated buffer release helper.  */
   BufferReleaseHelper *release_helper;
 
+  /* List of live resize callbacks.  */
+  XLList *resize_callbacks;
+
   /* The associated window.  */
   Window window;
 
@@ -71,6 +74,19 @@ static struct wl_global *test_manager_global;
 /* Hash table of all surfaces.  */
 static XLAssocTable *surfaces;
 
+static void
+HandleResizeDone (void *key, void *data)
+{
+  TestSurface *test;
+
+  test = data;
+  test->resize_callbacks
+    = XLListRemove (test->resize_callbacks, key);
+
+  if (test->role.resource)
+    test_surface_send_resize_finished (test->role.resource);
+}
+
 static void
 DestroyBacking (TestSurface *test)
 {
@@ -90,6 +106,10 @@ DestroyBacking (TestSurface *test)
   /* Free the subcompositor.  */
   SubcompositorFree (test->subcompositor);
 
+  /* Free all resize callbacks.  */
+  XLListFree (test->resize_callbacks,
+	      XLSeatCancelResizeCallback);
+
   /* And since there are no C level references to the role anymore, it
      can be freed.  */
   XLFree (test);
@@ -369,6 +389,18 @@ Activate (Surface *surface, Role *role, int deviceid,
     }
 }
 
+static void
+GetResizeDimensions (Surface *surface, Role *role, int *width,
+		     int *height)
+{
+  TestSurface *test;
+
+  test = TestSurfaceFromRole (role);
+
+  *width = SubcompositorWidth (test->subcompositor);
+  *height = SubcompositorHeight (test->subcompositor);
+}
+
 static void
 SetAlwaysGarbage (struct wl_client *client, struct wl_resource *resource)
 {
@@ -380,10 +412,46 @@ SetAlwaysGarbage (struct wl_client *client, struct wl_resource *resource)
   SubcompositorSetAlwaysGarbaged (test->subcompositor);
 }
 
+static void
+MoveResize (struct wl_client *client, struct wl_resource *resource,
+	    uint32_t edge, uint32_t serial,
+	    struct wl_resource *seat_resource)
+{
+  TestSurface *test;
+  Seat *seat;
+  void *key;
+
+  test = wl_resource_get_user_data (resource);
+  seat = wl_resource_get_user_data (seat_resource);
+
+  if (!test->role.surface)
+    {
+      wl_resource_post_error (resource, TEST_MANAGER_ERROR_RESIZE_REJECTED,
+			      "trying to resize test surface without surface");
+      return;
+    }
+
+  if (edge == TEST_MANAGER_RESIZE_EDGE_MOVE)
+    {
+      if (!XLMoveToplevel (seat, test->role.surface, serial))
+	wl_resource_post_error (resource, TEST_MANAGER_ERROR_RESIZE_REJECTED,
+				"move rejected for unspecified reason");
+    }
+  else if (!XLResizeToplevel (seat, test->role.surface, serial, edge))
+    wl_resource_post_error (resource, TEST_MANAGER_ERROR_RESIZE_REJECTED,
+			    "resize rejected for unspecified reason");
+
+  /* Now attach a resize complete callback.  */
+  key = XLSeatRunAfterResize (seat, HandleResizeDone, test);
+  test->resize_callbacks = XLListPrepend (test->resize_callbacks,
+					  key);
+}
+
 static const struct test_surface_interface test_surface_impl =
   {
     .destroy = Destroy,
     .set_always_garbage = SetAlwaysGarbage,
+    .move_resize = MoveResize,
   };
 
 static void
@@ -535,6 +603,7 @@ GetTestSurface (struct wl_client *client, struct wl_resource *resource,
   test->role.funcs.subsurface_update = SubsurfaceUpdate;
   test->role.funcs.get_window = GetWindow;
   test->role.funcs.activate = Activate;
+  test->role.funcs.get_resize_dimensions = GetResizeDimensions;
 
   /* Add the resource implementation.  */
   wl_resource_set_implementation (test->role.resource, &test_surface_impl,

tests/seat_test.c

@@ -33,6 +33,7 @@ enum test_expect_event_kind
     KEYBOARD_ENTER_EVENT,
     KEYBOARD_KEY_EVENT,
     KEYBOARD_MODIFIERS_EVENT,
+    SURFACE_RESIZE_FINISHED_EVENT,
   };
 
 struct test_recorded_event
@@ -84,6 +85,9 @@ struct test_recorded_button_event
 
   /* The button and state.  */
   uint32_t button, state;
+
+  /* The serial.  */
+  uint32_t serial;
 };
 
 struct test_recorded_axis_value120_event
@@ -137,6 +141,12 @@ struct test_recorded_keyboard_modifiers_event
   uint32_t group;
 };
 
+struct test_recorded_resize_finished_event
+{
+  /* The event header.  */
+  struct test_recorded_event header;
+};
+
 struct test_subsurface
 {
   /* The subsurface itself.  */
@@ -154,6 +164,7 @@ enum test_kind
     TEST_GRAB_KIND,
     TEST_VALUATOR_KIND,
     TEST_KEY_KIND,
+    TEST_RESIZE_KIND,
   };
 
 static const char *test_names[] =
@@ -164,9 +175,10 @@ static const char *test_names[] =
     "test_grab",
     "test_valuator",
     "test_key",
+    "test_resize",
   };
 
-#define LAST_TEST	        TEST_KEY_KIND
+#define LAST_TEST	        TEST_RESIZE_KIND
 #define TEST_SOURCE_DEVICE	4500000
 
 /* The display.  */
@@ -206,13 +218,14 @@ static void expect_frame_event (void);
 static void expect_enter_event (struct wl_surface *, double, double);
 static void expect_motion_event (double, double);
 static void expect_leave_event (void);
-static void expect_button_event (int, int);
+static uint32_t expect_button_event (int, int);
 static void expect_axis_value120_event (uint32_t, int32_t);
 static void expect_keyboard_enter_event (struct wl_surface *, uint32_t *,
 					 size_t);
 static void expect_keyboard_key_event (uint32_t, uint32_t);
 static void expect_keyboard_modifiers_event (uint32_t, uint32_t,
 					     uint32_t, uint32_t);
+static void expect_resize_finished_event (void);
 static void expect_no_events (void);
 
 
@@ -749,6 +762,62 @@ run_key_test (void)
   expect_keyboard_enter_event (wayland_surface, NULL, 0);
 }
 
+static void
+run_resize_test (struct test_XIButtonState *button_state)
+{
+  uint32_t serial;
+
+  test_seat_controller_dispatch_XI_ButtonPress (display->seat->controller,
+						test_get_time (),
+						TEST_SOURCE_DEVICE,
+						1,
+						test_get_root (),
+						test_surface_window,
+						None,
+						wl_fixed_from_double (2.0),
+						wl_fixed_from_double (2.0),
+						wl_fixed_from_double (2.0),
+						wl_fixed_from_double (2.0),
+						0,
+						button_state,
+						NULL, NULL, NULL);
+  test_XIButtonState_add_button (button_state, 1);
+  record_events ();
+
+  /* Obtain the serial.  */
+  expect_frame_event ();
+  serial = expect_button_event (BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED);
+  expect_no_events ();
+
+  /* Now, start resize.  */
+  test_surface_move_resize (test_surface, TEST_MANAGER_RESIZE_EDGE_MOVE,
+			    serial, display->seat->seat);
+
+  /* And dispatch the button release.  */
+  test_seat_controller_dispatch_XI_ButtonRelease (display->seat->controller,
+						  test_get_time (),
+						  TEST_SOURCE_DEVICE,
+						  1,
+						  test_get_root (),
+						  test_surface_window,
+						  None,
+						  wl_fixed_from_double (2.0),
+						  wl_fixed_from_double (2.0),
+						  wl_fixed_from_double (2.0),
+						  wl_fixed_from_double (2.0),
+						  0,
+						  button_state,
+						  NULL, NULL, NULL);
+  test_XIButtonState_remove_button (button_state, 1);
+
+  record_events ();
+  expect_frame_event ();
+  expect_enter_event (wayland_surface, 2.0, 2.0);
+  expect_resize_finished_event ();
+  expect_frame_event ();
+  expect_leave_event ();
+}
+
 static void
 test_single_step (enum test_kind kind)
 {
@@ -1007,6 +1076,24 @@ test_single_step (enum test_kind kind)
 	   key (SERIAL, TIME, 59, WL_KEYBOARD_KEY_STATE_RELEASED) */
 
       run_key_test ();
+      kind = TEST_RESIZE_KIND;
+      goto again;
+
+    case TEST_RESIZE_KIND:
+      /* Test simple resize (or rather movement).  Dispatch a
+	 ButtonPress event, obtain the serial of said event, start
+	 resize, and dispatch a ButtonRelease event.  Verify that the
+	 following events are sent to the pointer and surface.
+
+           button (SERIAL, TIME, BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED)
+           frame ()
+           leave ()
+           resize_finished ()
+	   frame ();
+	   enter (SERIAL, SURFACE, 2.0, 2.0)
+	   frame (); */
+
+      run_resize_test (button_state);
       break;
     }
 
@@ -1118,11 +1205,12 @@ expect_leave_event (void)
     report_test_failure ("a leave event was expected, but not received");
 }
 
-static void
+static uint32_t
 expect_button_event (int button, int state)
 {
   struct test_recorded_event *event;
   struct test_recorded_button_event *button_event;
+  uint32_t serial;
 
   event = record_tail;
 
@@ -1136,7 +1224,12 @@ expect_button_event (int button, int state)
       button_event = (struct test_recorded_button_event *) event;
 
       if (button_event->button == button && button_event->state == state)
+	{
+	  serial = button_event->serial;
 	  free (event);
+
+	  return serial;
+	}
       else
 	report_test_failure ("expected button event received "
 			     "with incorrect parameters");
@@ -1283,6 +1376,25 @@ expect_no_events (void)
 			 "yet some arrived");
 }
 
+static void
+expect_resize_finished_event (void)
+{
+  struct test_recorded_event *event;
+
+  event = record_tail;
+
+  if (!event)
+    return;
+
+  record_tail = record_tail->last;
+
+  if (event->kind == SURFACE_RESIZE_FINISHED_EVENT)
+    free (event);
+  else
+    report_test_failure ("expected resize_finished_event, but it was"
+			 " not received");
+}
+
 static void
 expect_surface_enter (double x, double y)
 {
@@ -1331,11 +1443,42 @@ handle_test_surface_committed (void *data, struct test_surface *surface,
 
 }
 
+static void
+handle_test_surface_resize_finished (void *data, struct test_surface *surface)
+{
+  struct test_recorded_resize_finished_event *event;
+
+  if (!recording_events)
+    {
+      test_log ("ignored resize finish event");
+      return;
+    }
+
+  event = malloc (sizeof *event);
+
+  if (!event)
+    report_test_failure ("failed to record event");
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wanalyzer-malloc-leak"
+#endif
+
+  event->header.kind = SURFACE_RESIZE_FINISHED_EVENT;
+  event->header.last = record_tail;
+  record_tail = &event->header;
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+}
+
 static const struct test_surface_listener test_surface_listener =
   {
     handle_test_surface_mapped,
     NULL,
     handle_test_surface_committed,
+    handle_test_surface_resize_finished,
   };
 
 
@@ -1475,6 +1618,7 @@ handle_pointer_button (void *data, struct wl_pointer *wl_pointer,
 
   event->button = button;
   event->state = state;
+  event->serial = serial;
 
 #ifdef __GNUC__
 #pragma GCC diagnostic pop
@@ -1634,6 +1778,7 @@ handle_keyboard_enter (void *data, struct wl_keyboard *keyboard,
 
   memcpy (event->keys, keys->data, keys->size);
   event->num_keys = keys->size / sizeof (uint32_t);
+  event->surface = surface;
 
 #ifdef __GNUC__
 #pragma GCC diagnostic pop