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Add support for the new Wayland protocol xdg-system-bell

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From the release notes:

    system bell - allowing e.g. terminal emulators to hand off system
    bell alerts to the compositor for among other things accessibility
    purposes

The new protocol is used when the new config option
bell.system=yes (and the compositor implements the protocol,
obviously).

The system bell is rung independent of whether the foot window has
keyboard focus or not (thus relying on compositor configuration to
determine whether anything should be done or not in response to the
bell).

The new option is enabled by default.
This commit is contained in:
Daniel Eklöf 2025-01-17 10:10:10 +01:00
parent 7e7fd0468d
commit 2a07a2e6b9
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GPG key ID: 5BBD4992C116573F
11 changed files with 91 additions and 11 deletions
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37
wayland.c
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@ -1374,6 +1374,17 @@ handle_global(void *data, struct wl_registry *registry,
}
#endif
#if defined(HAVE_XDG_SYSTEM_BELL)
else if (streq(interface, xdg_system_bell_v1_interface.name)) {
const uint32_t required = 1;
if (!verify_iface_version(interface, version, required))
return;
wayl->system_bell = wl_registry_bind(
wayl->registry, name, &xdg_system_bell_v1_interface, required);
}
#endif
#if defined(FOOT_IME_ENABLED) && FOOT_IME_ENABLED
else if (streq(interface, zwp_text_input_manager_v3_interface.name)) {
const uint32_t required = 1;
@ -1696,6 +1707,10 @@ wayl_destroy(struct wayland *wayl)
zwp_text_input_manager_v3_destroy(wayl->text_input_manager);
#endif
#if defined(HAVE_XDG_SYSTEM_BELL)
if (wayl->system_bell != NULL)
xdg_system_bell_v1_destroy(wayl->system_bell);
#endif
#if defined(HAVE_XDG_TOPLEVEL_ICON)
if (wayl->toplevel_icon_manager != NULL)
xdg_toplevel_icon_manager_v1_destroy(wayl->toplevel_icon_manager);
@ -2247,6 +2262,28 @@ wayl_win_set_urgent(struct wl_window *win)
return false;
}
bool
wayl_win_ring_bell(const struct wl_window *win)
{
#if defined(HAVE_XDG_SYSTEM_BELL)
if (win->term->wl->system_bell == NULL) {
static bool have_warned = false;
if (!have_warned) {
LOG_WARN("compositor does not implement the XDG system bell protocol");
have_warned = true;
}
return false;
}
xdg_system_bell_v1_ring(win->term->wl->system_bell, win->surface.surf);
return true;
#else
return false;
#endif
}
bool
wayl_win_csd_titlebar_visible(const struct wl_window *win)
{