virtualkeyboard: check if VirtualKeyboard is valid before accessing client. (#6460)

This fixes crash when restarting fcitx (#6378)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/protocols/VirtualKeyboard.cpp b/src/protocols/VirtualKeyboard.cpp
index 89b14c32..009c277c 100644
--- a/src/protocols/VirtualKeyboard.cpp
+++ b/src/protocols/VirtualKeyboard.cpp
@@ -100,7 +100,7 @@ wlr_keyboard* CVirtualKeyboardV1Resource::wlr() {
 }
 
 wl_client* CVirtualKeyboardV1Resource::client() {
-    return resource->client();
+    return resource->resource() ? resource->client() : nullptr;
 }
 
 void CVirtualKeyboardV1Resource::releasePressed() {
@@ -151,4 +151,4 @@ void CVirtualKeyboardProtocol::onCreateKeeb(CZwpVirtualKeyboardManagerV1* pMgr,
     LOGM(LOG, "New VKeyboard at id {}", id);
 
     events.newKeyboard.emit(RESOURCE);
-}
\ No newline at end of file
+}