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Prevent a race between surface destruction and focus
The Wayland protocol is asynchronous, by the time we destroy a surface, the compositor may have sent a wl_keyboard::enter or wl_pointer::enter events which now point to no surface, yet we receive it after. To prevent this race, we can just ignore any enter event targetting a NULL surface. Fixes #1150.
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@ -49,6 +49,10 @@ static void pointerHandleEnter(void* data,
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wl_fixed_t sx,
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wl_fixed_t sy)
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{
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// Happens in the case we just destroyed the surface.
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if (!surface)
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return;
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_GLFWwindow* window = wl_surface_get_user_data(surface);
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_glfw.wl.pointerSerial = serial;
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@ -280,6 +284,10 @@ static void keyboardHandleEnter(void* data,
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struct wl_surface* surface,
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struct wl_array* keys)
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{
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// Happens in the case we just destroyed the surface.
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if (!surface)
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return;
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_GLFWwindow* window = wl_surface_get_user_data(surface);
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_glfw.wl.keyboardFocus = window;
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