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LibGUI: Move widget registration to LibCore

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This also moves Widget::load_from_json into Core::Object as a virtual
function in order to allow loading non-widget objects in GML (e.g.
BoxLayout).

Co-authored-by: Gunnar Beutner <gbeutner@serenityos.org>
This commit is contained in:
Tom 2021-04-04 15:40:34 -06:00 • committed by Andreas Kling
parent 6e101adc28
commit 3aaffa2c47
13 changed files with 134 additions and 85 deletions
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31
Userland/Libraries/LibCore/Object.h
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@ -19,6 +19,35 @@
namespace Core {
#define REGISTER_CORE_OBJECT(namespace_, class_name) \
namespace Core { \
namespace Registration { \
Core::ObjectClassRegistration registration_##class_name(#namespace_ "::" #class_name, []() { return namespace_::class_name::construct(); }); \
} \
}
class ObjectClassRegistration {
AK_MAKE_NONCOPYABLE(ObjectClassRegistration);
AK_MAKE_NONMOVABLE(ObjectClassRegistration);
public:
ObjectClassRegistration(const String& class_name, Function<NonnullRefPtr<Object>()> factory, ObjectClassRegistration* parent_class = nullptr);
~ObjectClassRegistration();
String class_name() const { return m_class_name; }
const ObjectClassRegistration* parent_class() const { return m_parent_class; }
NonnullRefPtr<Object> construct() const { return m_factory(); }
bool is_derived_from(const ObjectClassRegistration& base_class) const;
static void for_each(Function<void(const ObjectClassRegistration&)>);
static const ObjectClassRegistration* find(const String& class_name);
private:
String m_class_name;
Function<NonnullRefPtr<Object>()> m_factory;
ObjectClassRegistration* m_parent_class { nullptr };
};
class RPCClient;
enum class TimerShouldFireWhenNotVisible {
@ -129,6 +158,8 @@ public:
void increment_inspector_count(Badge<RPCClient>);
void decrement_inspector_count(Badge<RPCClient>);
virtual bool load_from_json(const JsonObject&, RefPtr<Core::Object> (*)(const String&)) { return false; }
protected:
explicit Object(Object* parent = nullptr);