cxx: Add _get_wref() convenience to all classes

This allows constructs like:

  auto w_obj = obj._get_wref();
  auto cb = std::bind([w_obj]() {
    auto o = w_obj.lock();
    if (!o) return;
    o->call();
  });
  event_add(..., obj, cb);

Note: I don't like how those wref work. Close to c++ wref but far from
EFL wref.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/lib/eolian_cxx/grammar/class_definition.hpp b/src/lib/eolian_cxx/grammar/class_definition.hpp
index 15ef86d371..320d806398 100644
--- a/src/lib/eolian_cxx/grammar/class_definition.hpp
+++ b/src/lib/eolian_cxx/grammar/class_definition.hpp
@@ -170,6 +170,10 @@ struct class_definition_generator
      // /// @endcond
      if(!as_generator(scope_tab << "/// @endcond\n").generate(sink, attributes::unused, context)) return false;
 
+     if(!as_generator(   scope_tab << "::efl::eo::wref<" << string << "> _get_wref() const { "
+                         "return ::efl::eo::wref<" << string << ">(*this); }\n"
+                     ).generate(sink, std::make_tuple(cls.cxx_name, cls.cxx_name), context)) return false;
+
      if(!as_generator(   scope_tab << "::efl::eo::concrete const& _get_concrete() const { return *this; }\n"
                       << scope_tab << "::efl::eo::concrete& _get_concrete() { return *this; }\n"
                      ).generate(sink, attributes::unused, context)) return false;