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shell.c: Prevent moving a window from more than one source

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It was possible to start a move or resize with a pointer and then
start another move for the same surface with touch or a pointer from
another seat, which would make the window flicker around.  With this
commit, we now reject any attempts to move or resize a surface that is
currently grabbed.
This commit is contained in:
Kristian Høgsberg 2013-10-24 16:52:00 -07:00
parent 0d94f41b44
commit c85f1d4595
1 changed files with 13 additions and 3 deletions
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16
src/shell.c
View file

@ -207,7 +207,7 @@ struct shell_surface {
int32_t saved_x, saved_y;
bool saved_position_valid;
bool saved_rotation_valid;
int unresponsive;
int unresponsive, grabbed;
struct {
struct weston_transform transform;
@ -375,6 +375,7 @@ shell_grab_start(struct shell_grab *grab,
wl_signal_add(&shsurf->destroy_signal,
&grab->shsurf_destroy_listener);
shsurf->grabbed = 1;
weston_pointer_start_grab(pointer, &grab->grab);
if (shell->child.desktop_shell) {
desktop_shell_send_grab_cursor(shell->child.desktop_shell,
@ -389,8 +390,10 @@ shell_grab_start(struct shell_grab *grab,
static void
shell_grab_end(struct shell_grab *grab)
{
if (grab->shsurf)
if (grab->shsurf) {
wl_list_remove(&grab->shsurf_destroy_listener.link);
grab->shsurf->grabbed = 0;
}
weston_pointer_end_grab(grab->grab.pointer);
}
@ -410,6 +413,7 @@ shell_touch_grab_start(struct shell_touch_grab *grab,
&grab->shsurf_destroy_listener);
grab->touch = touch;
shsurf->grabbed = 1;
weston_touch_start_grab(touch, &grab->grab);
if (shell->child.desktop_shell)
@ -420,8 +424,10 @@ shell_touch_grab_start(struct shell_touch_grab *grab,
static void
shell_touch_grab_end(struct shell_touch_grab *grab)
{
if (grab->shsurf)
if (grab->shsurf) {
wl_list_remove(&grab->shsurf_destroy_listener.link);
grab->shsurf->grabbed = 0;
}
weston_touch_end_grab(grab->touch);
}
@ -1170,6 +1176,8 @@ surface_touch_move(struct shell_surface *shsurf, struct weston_seat *seat)
if (shsurf->type == SHELL_SURFACE_FULLSCREEN)
return 0;
if (shsurf->grabbed)
return 0;
move = malloc(sizeof *move);
if (!move)
@ -1240,6 +1248,8 @@ surface_move(struct shell_surface *shsurf, struct weston_seat *seat)
if (!shsurf)
return -1;
if (shsurf->grabbed)
return 0;
if (shsurf->type == SHELL_SURFACE_FULLSCREEN)
return 0;