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wayland: implement stacked popups

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Allow multiple popups from the same clients to be stacked under
the same pointer grab.
This is necessary to implement submenus.

https://bugzilla.gnome.org/show_bug.cgi?id=707863
This commit is contained in:
Giovanni Campagna 2013-09-11 14:53:48 +02:00
parent 776a86a65f
commit 9a13b857f4
1 changed files with 60 additions and 23 deletions
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83
src/wayland/meta-wayland-pointer.c
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@ -488,10 +488,18 @@ meta_wayland_pointer_destroy_focus (MetaWaylandPointer *pointer)
typedef struct {
MetaWaylandPointerGrab generic;
MetaWaylandSurface *popup;
struct wl_listener popup_destroy_listener;
struct wl_client *grab_client;
struct wl_list all_popups;
} MetaWaylandPopupGrab;
typedef struct {
MetaWaylandPopupGrab *grab;
MetaWaylandSurface *surface;
struct wl_listener surface_destroy_listener;
struct wl_list link;
} MetaWaylandPopup;
static void
popup_grab_focus (MetaWaylandPointerGrab *grab,
MetaWaylandSurface *surface,
@ -501,8 +509,7 @@ popup_grab_focus (MetaWaylandPointerGrab *grab,
/* Popup grabs are in owner-events mode (ie, events for the same client
are reported as normal) */
if (wl_resource_get_client (surface->resource) ==
wl_resource_get_client (popup_grab->popup->resource))
if (wl_resource_get_client (surface->resource) == popup_grab->grab_client)
default_grab_focus (grab, surface, event);
else
meta_wayland_pointer_set_focus (grab->pointer, NULL);
@ -525,8 +532,7 @@ popup_grab_button (MetaWaylandPointerGrab *grab,
if (pointer->focus_resource)
{
/* This is ensured by popup_grab_focus */
g_assert (wl_resource_get_client (pointer->focus_resource) ==
wl_resource_get_client (popup_grab->popup->resource));
g_assert (wl_resource_get_client (pointer->focus_resource) == popup_grab->grab_client);
default_grab_button (grab, event);
}
@ -545,15 +551,20 @@ static void
meta_wayland_pointer_end_popup_grab (MetaWaylandPointer *pointer)
{
MetaWaylandPopupGrab *popup_grab;
MetaWaylandPopup *popup, *tmp;
popup_grab = (MetaWaylandPopupGrab*)pointer->grab;
g_assert (popup_grab->generic.interface == &popup_grab_interface);
if (popup_grab->popup)
wl_list_for_each_safe (popup, tmp, &popup_grab->all_popups, link)
{
wl_shell_surface_send_popup_done (popup_grab->popup->shell_surface->resource);
wl_list_remove (&popup_grab->popup_destroy_listener.link);
MetaWaylandSurfaceExtension *shell_surface = popup->surface->shell_surface;
wl_shell_surface_send_popup_done (shell_surface->resource);
wl_list_remove (&popup->surface_destroy_listener.link);
wl_list_remove (&popup->link);
g_slice_free (MetaWaylandPopup, popup);
}
meta_wayland_pointer_end_grab (pointer);
@ -564,11 +575,15 @@ static void
on_popup_surface_destroy (struct wl_listener *listener,
void *data)
{
MetaWaylandPopupGrab *grab =
wl_container_of (listener, grab, popup_destroy_listener);
MetaWaylandPopup *popup =
wl_container_of (listener, popup, surface_destroy_listener);
MetaWaylandPopupGrab *popup_grab = popup->grab;
grab->popup = NULL;
meta_wayland_pointer_end_popup_grab (grab->generic.pointer);
wl_list_remove (&popup->link);
g_slice_free (MetaWaylandPopup, popup);
if (wl_list_empty (&popup_grab->all_popups))
meta_wayland_pointer_end_popup_grab (popup_grab->generic.pointer);
}
gboolean
@ -576,20 +591,42 @@ meta_wayland_pointer_start_popup_grab (MetaWaylandPointer *pointer,
MetaWaylandSurface *surface)
{
MetaWaylandPopupGrab *grab;
MetaWaylandPopup *popup;
if (pointer->grab != &pointer->default_grab &&
pointer->grab->interface != &popup_grab_interface)
return FALSE;
if (pointer->grab != &pointer->default_grab)
{
if (pointer->grab->interface == &popup_grab_interface)
{
grab = (MetaWaylandPopupGrab*)pointer->grab;
grab = g_slice_new0 (MetaWaylandPopupGrab);
grab->generic.interface = &popup_grab_interface;
grab->generic.pointer = pointer;
grab->popup = surface;
if (wl_resource_get_client (surface->resource) != grab->grab_client)
return FALSE;
}
grab->popup_destroy_listener.notify = on_popup_surface_destroy;
wl_resource_add_destroy_listener (surface->resource, &grab->popup_destroy_listener);
return FALSE;
}
if (pointer->grab == &pointer->default_grab)
{
grab = g_slice_new0 (MetaWaylandPopupGrab);
grab->generic.interface = &popup_grab_interface;
grab->generic.pointer = pointer;
grab->grab_client = wl_resource_get_client (surface->resource);
wl_list_init (&grab->all_popups);
meta_wayland_pointer_start_grab (pointer, (MetaWaylandPointerGrab*)grab);
}
else
grab = (MetaWaylandPopupGrab*)pointer->grab;
popup = g_slice_new0 (MetaWaylandPopup);
popup->grab = grab;
popup->surface = surface;
popup->surface_destroy_listener.notify = on_popup_surface_destroy;
wl_resource_add_destroy_listener (surface->resource, &popup->surface_destroy_listener);
wl_list_insert (&grab->all_popups, &popup->link);
meta_wayland_pointer_start_grab (pointer, (MetaWaylandPointerGrab*)grab);
return TRUE;
}