compositor: Remove redundant and not well-defined focus field

It was never clear what this field really did.

src/compositor-drm.c

@@ -2364,7 +2364,6 @@ session_notify(struct wl_listener *listener, void *data)
 
 	if (ec->base.session_active) {
 		weston_log("activating session\n");
-		compositor->focus = 1;
 		compositor->state = ec->prev_state;
 		drm_compositor_set_modes(ec);
 		weston_compositor_damage_all(compositor);
@@ -2373,7 +2372,6 @@ session_notify(struct wl_listener *listener, void *data)
 		weston_log("deactivating session\n");
 		udev_input_disable(&ec->input);
 
-		compositor->focus = 0;
 		ec->prev_state = compositor->state;
 		weston_compositor_offscreen(compositor);
 
@@ -2672,8 +2670,6 @@ drm_compositor_create(struct wl_display *display,
 	ec->base.destroy = drm_destroy;
 	ec->base.restore = drm_restore;
 
-	ec->base.focus = 1;
-
 	ec->prev_state = WESTON_COMPOSITOR_ACTIVE;
 
 	for (key = KEY_F1; key < KEY_F9; key++)

src/compositor-fbdev.c

@@ -816,7 +816,6 @@ session_notify(struct wl_listener *listener, void *data)
 
 	if (compositor->base.session_active) {
 		weston_log("entering VT\n");
-		compositor->base.focus = 1;
 		compositor->base.state = compositor->prev_state;
 
 		wl_list_for_each(output, &compositor->base.output_list, link) {
@@ -834,7 +833,6 @@ session_notify(struct wl_listener *listener, void *data)
 			fbdev_output_disable(output);
 		}
 
-		compositor->base.focus = 0;
 		compositor->prev_state = compositor->base.state;
 		weston_compositor_offscreen(&compositor->base);
 
@@ -906,7 +904,6 @@ fbdev_compositor_create(struct wl_display *display, int *argc, char *argv[],
 	compositor->base.destroy = fbdev_compositor_destroy;
 	compositor->base.restore = fbdev_restore;
 
-	compositor->base.focus = 1;
 	compositor->prev_state = WESTON_COMPOSITOR_ACTIVE;
 	compositor->use_pixman = !param->use_gl;
 

src/compositor-rpi.c

@@ -671,7 +671,6 @@ session_notify(struct wl_listener *listener, void *data)
 
 	if (compositor->base.session_active) {
 		weston_log("activating session\n");
-		compositor->base.focus = 1;
 		compositor->base.state = compositor->prev_state;
 		weston_compositor_damage_all(&compositor->base);
 		wl_list_for_each(seat, &compositor->base.seat_list, link) {
@@ -685,7 +684,6 @@ session_notify(struct wl_listener *listener, void *data)
 			evdev_remove_devices(seat);
 		}
 
-		compositor->base.focus = 0;
 		compositor->prev_state = compositor->base.state;
 		weston_compositor_offscreen(&compositor->base);
 
@@ -762,7 +760,6 @@ rpi_compositor_create(struct wl_display *display, int *argc, char *argv[],
 	compositor->base.destroy = rpi_compositor_destroy;
 	compositor->base.restore = rpi_restore;
 
-	compositor->base.focus = 1;
 	compositor->prev_state = WESTON_COMPOSITOR_ACTIVE;
 	compositor->single_buffer = param->renderer.single_buffer;
 

src/compositor.c

@@ -1042,7 +1042,7 @@ weston_compositor_repick(struct weston_compositor *compositor)
 {
 	struct weston_seat *seat;
 
-	if (!compositor->focus)
+	if (!compositor->session_active)
 		return;
 
 	wl_list_for_each(seat, &compositor->seat_list, link)

src/compositor.h

@@ -591,8 +591,6 @@ struct weston_compositor {
 	struct weston_plane primary_plane;
 	uint32_t capabilities; /* combination of enum weston_capability */
 
-	uint32_t focus;
-
 	struct weston_renderer *renderer;
 
 	pixman_format_code_t read_format;

src/evdev.c

@@ -400,7 +400,7 @@ evdev_device_data(int fd, uint32_t mask, void *data)
 	int len;
 
 	ec = device->seat->compositor;
-	if (!ec->focus)
+	if (!ec->session_active)
 		return 1;
 
 	/* If the compositor is repainting, this function is called only once

src/input.c

@@ -963,9 +963,7 @@ notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
 
 	if (output) {
 		move_pointer(seat, x, y);
-		compositor->focus = 1;
 	} else {
-		compositor->focus = 0;
 		/* FIXME: We should call weston_pointer_set_focus(seat,
 		 * NULL) here, but somehow that breaks re-entry... */
 	}

tests/weston-test.c

@@ -122,8 +122,6 @@ move_pointer(struct wl_client *client, struct wl_resource *resource,
 	struct weston_seat *seat = get_seat(test);
 	struct weston_pointer *pointer = seat->pointer;
 
-	test->compositor->focus = 1;
-
 	notify_motion(seat, 100,
 		      wl_fixed_from_int(x) - pointer->x,
 		      wl_fixed_from_int(y) - pointer->y);
@@ -138,8 +136,6 @@ send_button(struct wl_client *client, struct wl_resource *resource,
 	struct weston_test *test = wl_resource_get_user_data(resource);
 	struct weston_seat *seat = get_seat(test);
 
-	test->compositor->focus = 1;
-
 	notify_button(seat, 100, button, state);
 }
 
@@ -172,8 +168,6 @@ send_key(struct wl_client *client, struct wl_resource *resource,
 	struct weston_test *test = wl_resource_get_user_data(resource);
 	struct weston_seat *seat = get_seat(test);
 
-	test->compositor->focus = 1;
-
 	notify_key(seat, 100, key, state, STATE_UPDATE_AUTOMATIC);
 }