diff options
| author | Matt Hoosier <matt.hoosier@gmail.com> | 2017-09-05 08:05:49 -0500 |
|---|---|---|
| committer | Quentin Glidic <sardemff7+git@sardemff7.net> | 2017-12-08 15:16:08 +0100 |
| commit | 555c548c7e968588607f39367fff842226c5846b (patch) | |
| tree | 211d15fbf445c749ab636c3705980101dde99066 | |
| parent | 037f056ec3fc30246dda66e4375d6329e49e4cff (diff) | |
libweston-desktop: add signal for title/app-id changes
As discussed on
https://lists.freedesktop.org/archives/wayland-devel/2017-August/034720.html,
it's useful for the shell implementation to know when these change,
for example to relay the information on to taskbars or similar.
To avoid ABI changes or the need to make the weston_desktop_surface
definition public, new functions are introduced for attaching
listeners to these signals.
Signed-off-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
| -rw-r--r-- | libweston-desktop/libweston-desktop.h | 3 | ||||
| -rw-r--r-- | libweston-desktop/surface.c | 22 |
2 files changed, 21 insertions, 4 deletions
diff --git a/libweston-desktop/libweston-desktop.h b/libweston-desktop/libweston-desktop.h index 03b04c7b..a0fb9381 100644 --- a/libweston-desktop/libweston-desktop.h +++ b/libweston-desktop/libweston-desktop.h @@ -164,6 +164,9 @@ weston_desktop_surface_set_size(struct weston_desktop_surface *surface, int32_t width, int32_t height); void weston_desktop_surface_close(struct weston_desktop_surface *surface); +void +weston_desktop_surface_add_metadata_listener(struct weston_desktop_surface *surface, + struct wl_listener *listener); void * weston_desktop_surface_get_user_data(struct weston_desktop_surface *surface); diff --git a/libweston-desktop/surface.c b/libweston-desktop/surface.c index d3be9364..cbfa5ee0 100644 --- a/libweston-desktop/surface.c +++ b/libweston-desktop/surface.c @@ -64,6 +64,7 @@ struct weston_desktop_surface { char *title; char *app_id; pid_t pid; + struct wl_signal metadata_signal; }; struct { struct weston_desktop_surface *parent; @@ -287,6 +288,8 @@ weston_desktop_surface_create(struct weston_desktop *desktop, wl_list_init(&surface->view_list); wl_list_init(&surface->grab_link); + wl_signal_init(&surface->metadata_signal); + return surface; } @@ -511,6 +514,13 @@ weston_desktop_surface_close(struct weston_desktop_surface *surface) surface->implementation_data); } +WL_EXPORT void +weston_desktop_surface_add_metadata_listener(struct weston_desktop_surface *surface, + struct wl_listener *listener) +{ + wl_signal_add(&surface->metadata_signal, listener); +} + struct weston_desktop_surface * weston_desktop_surface_from_client_link(struct wl_list *link) { @@ -679,28 +689,32 @@ void weston_desktop_surface_set_title(struct weston_desktop_surface *surface, const char *title) { - char *tmp; + char *tmp, *old; tmp = strdup(title); if (tmp == NULL) return; - free(surface->title); + old = surface->title; surface->title = tmp; + wl_signal_emit(&surface->metadata_signal, surface); + free(old); } void weston_desktop_surface_set_app_id(struct weston_desktop_surface *surface, const char *app_id) { - char *tmp; + char *tmp, *old; tmp = strdup(app_id); if (tmp == NULL) return; - free(surface->app_id); + old = surface->app_id; surface->app_id = tmp; + wl_signal_emit(&surface->metadata_signal, surface); + free(old); } void |