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Fix compositor crash when dragging to a surface that disappears

This commit is contained in:
Kristian Høgsberg 2010-11-22 13:58:46 -05:00
parent 8857a96a97
commit 3d46534f4a
1 changed files with 50 additions and 24 deletions
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74
compositor/compositor.c
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@ -559,24 +559,58 @@ shell_resize(struct wl_client *client, struct wl_shell *shell,
wlsc_input_device_set_pointer_image(wd, pointer);
}
static uint32_t
get_time(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
struct wlsc_drag {
struct wl_drag drag;
struct wlsc_listener listener;
};
static void
wl_drag_set_pointer_focus(struct wl_drag *drag,
struct wlsc_surface *surface, uint32_t time,
int32_t x, int32_t y, int32_t sx, int32_t sy);
static void
destroy_drag(struct wl_resource *resource, struct wl_client *client)
{
struct wl_drag *drag =
container_of(resource, struct wl_drag, resource);
struct wlsc_drag *drag =
container_of(resource, struct wlsc_drag, drag.resource);
/* FIXME: More stuff */
wl_list_remove(&drag->listener.link);
free(drag);
}
const static struct wl_drag_interface drag_interface;
static void
drag_handle_surface_destroy(struct wlsc_listener *listener,
struct wlsc_surface *surface)
{
struct wlsc_drag *drag =
container_of(listener, struct wlsc_drag, listener);
uint32_t time = get_time();
if (drag->drag.pointer_focus == &surface->base)
wl_drag_set_pointer_focus(&drag->drag, NULL, time, 0, 0, 0, 0);
}
static void
shell_create_drag(struct wl_client *client,
struct wl_shell *shell, uint32_t id)
{
struct wl_drag *drag;
struct wlsc_drag *drag;
struct wlsc_compositor *ec =
container_of(shell, struct wlsc_compositor, shell);
drag = malloc(sizeof *drag);
if (drag == NULL) {
@ -585,14 +619,18 @@ shell_create_drag(struct wl_client *client,
}
memset(drag, 0, sizeof *drag);
drag->resource.base.id = id;
drag->resource.base.interface = &wl_drag_interface;
drag->resource.base.implementation =
drag->drag.resource.base.id = id;
drag->drag.resource.base.interface = &wl_drag_interface;
drag->drag.resource.base.implementation =
(void (**)(void)) &drag_interface;
drag->resource.destroy = destroy_drag;
drag->drag.resource.destroy = destroy_drag;
wl_client_add_resource(client, &drag->resource);
drag->listener.func = drag_handle_surface_destroy;
wl_list_insert(ec->surface_destroy_listener_list.prev,
&drag->listener.link);
wl_client_add_resource(client, &drag->drag.resource);
}
const static struct wl_shell_interface shell_interface = {
@ -712,11 +750,6 @@ pick_surface(struct wlsc_input_device *device, int32_t *sx, int32_t *sy)
return NULL;
}
static void
wl_drag_set_pointer_focus(struct wl_drag *drag,
struct wlsc_surface *surface, uint32_t time,
int32_t x, int32_t y, int32_t sx, int32_t sy);
void
notify_motion(struct wlsc_input_device *device, uint32_t time, int x, int y)
{
@ -996,16 +1029,6 @@ const static struct wl_input_device_interface input_device_interface = {
input_device_attach,
};
static uint32_t
get_time(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
static void
handle_surface_destroy(struct wlsc_listener *listener,
struct wlsc_surface *surface)
@ -1016,6 +1039,9 @@ handle_surface_destroy(struct wlsc_listener *listener,
if (device->keyboard_focus == surface)
wlsc_input_device_set_keyboard_focus(device, NULL, time);
if (device->pointer_focus == surface)
wlsc_input_device_set_pointer_focus(device, NULL, time,
0, 0, 0, 0);
if (device->pointer_focus == surface ||
(&device->pointer_focus->base == &wl_grab_surface &&
device->grab_surface == surface))