core: fix segfault when cursor_shape is not supported (#76)

Co-authored-by: alcubierre-drive <alcubierre-drive>

src/events/Events.cpp

@@ -82,7 +82,9 @@ void Events::handleCapabilities(void* data, wl_seat* wl_seat, uint32_t capabilit
     if (capabilities & WL_SEAT_CAPABILITY_POINTER) {
         const auto POINTER = wl_seat_get_pointer(wl_seat);
         wl_pointer_add_listener(POINTER, &pointerListener, wl_seat);
-        g_pHyprpicker->m_pCursorShapeDevice = wp_cursor_shape_manager_v1_get_pointer(g_pHyprpicker->m_pCursorShape, POINTER);
+        g_pHyprpicker->m_pCursorShapeDevice = (g_pHyprpicker->m_pCursorShape) ?
+            wp_cursor_shape_manager_v1_get_pointer(g_pHyprpicker->m_pCursorShape, POINTER) :
+            nullptr;
     } else {
         Debug::log(CRIT, "Hyprpicker cannot work without a pointer!");
         g_pHyprpicker->finish(1);
@@ -103,11 +105,14 @@ void Events::handlePointerEnter(void* data, struct wl_pointer* wl_pointer, uint3
             if (!ls->pCursorImg)
                 break;
 
-            // wl_surface_set_buffer_scale(ls->pCursorSurface, ls->m_pMonitor->scale);
-            // wl_surface_attach(ls->pCursorSurface, wl_cursor_image_get_buffer(ls->pCursorImg), 0, 0);
-            // wl_pointer_set_cursor(wl_pointer, serial, ls->pCursorSurface, ls->pCursorImg->hotspot_x / ls->m_pMonitor->scale, ls->pCursorImg->hotspot_y / ls->m_pMonitor->scale);
-            // wl_surface_commit(ls->pCursorSurface);
-            wp_cursor_shape_device_v1_set_shape(g_pHyprpicker->m_pCursorShapeDevice, serial, WP_CURSOR_SHAPE_DEVICE_V1_SHAPE_CROSSHAIR);
+            if (g_pHyprpicker->m_pCursorShapeDevice) {
+                wp_cursor_shape_device_v1_set_shape(g_pHyprpicker->m_pCursorShapeDevice, serial, WP_CURSOR_SHAPE_DEVICE_V1_SHAPE_CROSSHAIR);
+            } else {
+                wl_surface_set_buffer_scale(ls->pCursorSurface, ls->m_pMonitor->scale);
+                wl_surface_attach(ls->pCursorSurface, wl_cursor_image_get_buffer(ls->pCursorImg), 0, 0);
+                wl_pointer_set_cursor(wl_pointer, serial, ls->pCursorSurface, ls->pCursorImg->hotspot_x / ls->m_pMonitor->scale, ls->pCursorImg->hotspot_y / ls->m_pMonitor->scale);
+                wl_surface_commit(ls->pCursorSurface);
+            }
         }
     }
 }