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LibGUI+LibCore: Move GML property system from LibCore to LibGUI

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Since Core::Object properties are really only used by GML now that the
Inspector is long gone, there's no need for these to pollute
Core::Object.

This patch adds a new GUI::Object class to hold properties, and makes
it the new base class of GUI::Window, GUI::Widget and GUI::Layout.
The "instantiate an object by name" mechanism that GML uses is also
hoisted into GUI::Object as well.
This commit is contained in:
Andreas Kling 2023-08-06 15:14:59 +02:00
parent 9f6ceff7cf
commit 405187993a
19 changed files with 376 additions and 335 deletions
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74
Userland/Libraries/LibGUI/Object.cpp Normal file
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/*
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Object.h>
namespace GUI {
Object::Object(Core::Object* parent)
: Core::Object(parent)
{
}
Object::~Object() = default;
void Object::register_property(DeprecatedString const& name, Function<JsonValue()> getter, Function<bool(JsonValue const&)> setter)
{
m_properties.set(name, make<Property>(name, move(getter), move(setter)));
}
JsonValue Object::property(DeprecatedString const& name) const
{
auto it = m_properties.find(name);
if (it == m_properties.end())
return JsonValue();
return it->value->get();
}
bool Object::set_property(DeprecatedString const& name, JsonValue const& value)
{
auto it = m_properties.find(name);
if (it == m_properties.end())
return false;
return it->value->set(value);
}
static HashMap<StringView, ObjectClassRegistration*>& object_classes()
{
static HashMap<StringView, ObjectClassRegistration*> s_map;
return s_map;
}
ObjectClassRegistration::ObjectClassRegistration(StringView class_name, Function<ErrorOr<NonnullRefPtr<Object>>()> factory, ObjectClassRegistration* parent_class)
: m_class_name(class_name)
, m_factory(move(factory))
, m_parent_class(parent_class)
{
object_classes().set(class_name, this);
}
bool ObjectClassRegistration::is_derived_from(ObjectClassRegistration const& base_class) const
{
if (&base_class == this)
return true;
if (!m_parent_class)
return false;
return m_parent_class->is_derived_from(base_class);
}
void ObjectClassRegistration::for_each(Function<void(ObjectClassRegistration const&)> callback)
{
for (auto& it : object_classes()) {
callback(*it.value);
}
}
ObjectClassRegistration const* ObjectClassRegistration::find(StringView class_name)
{
return object_classes().get(class_name).value_or(nullptr);
}
}