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xwm: add _XWAYLAND_RANDR_EMU_MONITOR_RECTS support

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Fixes #2125
This commit is contained in:
BBaoVanC 2022-12-19 14:45:54 -06:00
parent 5f264a7d6c
commit 395b0d856a
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GPG key ID: 18089E4E3CCF1D3A
3 changed files with 49 additions and 1 deletions
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5
include/wlr/xwayland/xwayland.h
View file

@ -184,6 +184,11 @@ struct wlr_xwayland_resize_event {
uint32_t edges;
};
struct wlr_xwayland_fullscreen_event {
size_t randr_emu_monitor_rects_count;
struct wlr_box *randr_emu_monitor_rects;
};
struct wlr_xwayland_minimize_event {
struct wlr_xwayland_surface *surface;
bool minimize;

1
include/xwayland/xwm.h
View file

@ -87,6 +87,7 @@ enum atom_name {
DND_ACTION_PRIVATE,
NET_CLIENT_LIST,
NET_CLIENT_LIST_STACKING,
XWAYLAND_RANDR_EMU_MONITOR_RECTS,
ATOM_LAST // keep last
};

44
xwayland/xwm.c
View file

@ -89,6 +89,7 @@ const char *const atom_map[ATOM_LAST] = {
[DND_ACTION_PRIVATE] = "XdndActionPrivate",
[NET_CLIENT_LIST] = "_NET_CLIENT_LIST",
[NET_CLIENT_LIST_STACKING] = "_NET_CLIENT_LIST_STACKING",
[XWAYLAND_RANDR_EMU_MONITOR_RECTS] = "_XWAYLAND_RANDR_EMU_MONITOR_RECTS",
};
#define STARTUP_INFO_REMOVE_PREFIX "remove: ID="
@ -1261,6 +1262,44 @@ static bool xsurface_is_maximized(
return xsurface->maximized_horz && xsurface->maximized_vert;
}
static void read_xwayland_randr_emu_monitor_rects(
struct wlr_xwayland_surface *xsurface,
struct wlr_xwayland_fullscreen_event *fullscreen_event) {
struct wlr_xwm *xwm = xsurface->xwm;
xcb_get_property_cookie_t cookie = xcb_get_property(xwm->xcb_conn, 0, xsurface->window_id,
xwm->atoms[XWAYLAND_RANDR_EMU_MONITOR_RECTS], XCB_ATOM_ANY, 0, 1024);
xcb_get_property_reply_t *reply = xcb_get_property_reply(xwm->xcb_conn, cookie, NULL);
if (reply == NULL) {
wlr_log(WLR_ERROR, "Failed to get _XWAYLAND_RANDR_EMU_MONITOR_RECTS property on window %d",
xsurface->window_id);
return;
}
if (reply->value_len % 4 != 0) {
wlr_log(WLR_ERROR, "_XWAYLAND_RANDR_EMU_MONITOR_RECTS property on window %d has "
"%d elements, but it should be a multiple of 4",
xsurface->window_id, reply->value_len);
free(reply);
return;
}
uint32_t *modes = xcb_get_property_value(reply);
fullscreen_event->randr_emu_monitor_rects_count = reply->value_len / 4;
fullscreen_event->randr_emu_monitor_rects = calloc(
fullscreen_event->randr_emu_monitor_rects_count, sizeof(struct wlr_box));
for (size_t i = 0; i < fullscreen_event->randr_emu_monitor_rects_count; i++) {
uint32_t *rect = (uint32_t *)modes + i * 4;
fullscreen_event->randr_emu_monitor_rects[i] = (struct wlr_box) {
.x = rect[0],
.y = rect[1],
.width = rect[2],
.height = rect[3],
};
}
free(reply);
}
static void xwm_handle_net_wm_state_message(struct wlr_xwm *xwm,
xcb_client_message_event_t *client_message) {
struct wlr_xwayland_surface *xsurface =
@ -1311,7 +1350,10 @@ static void xwm_handle_net_wm_state_message(struct wlr_xwm *xwm,
xsurface->saved_height = xsurface->height;
}
wl_signal_emit_mutable(&xsurface->events.request_fullscreen, xsurface);
struct wlr_xwayland_fullscreen_event fullscreen_event = {0};
read_xwayland_randr_emu_monitor_rects(xsurface, &fullscreen_event);
wl_signal_emit_mutable(&xsurface->events.request_fullscreen, &fullscreen_event);
free(fullscreen_event.randr_emu_monitor_rects);
}
if (maximized != xsurface_is_maximized(xsurface)) {