ladybird/Userland/Libraries/LibGUI/Model.cpp
sin-ack ca2c81251a Everywhere: Replace Model::update() with Model::invalidate()
Most of the models were just calling did_update anyway, which is
pointless since it can be unified to the base Model class. Instead, code
calling update() will now call invalidate(), which functions identically
and is more obvious in what it does.

Additionally, a default implementation is provided, which removes the
need to add empty implementations of update() for each model subclass.

Co-Authored-By: Ali Mohammad Pur <ali.mpfard@gmail.com>
2021-08-06 19:14:31 +02:00

110 lines
2.3 KiB
C++

/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/AbstractView.h>
#include <LibGUI/Model.h>
namespace GUI {
Model::Model()
{
}
Model::~Model()
{
}
void Model::register_view(Badge<AbstractView>, AbstractView& view)
{
m_views.set(&view);
m_clients.set(&view);
}
void Model::unregister_view(Badge<AbstractView>, AbstractView& view)
{
m_views.remove(&view);
m_clients.remove(&view);
}
void Model::invalidate()
{
did_update();
}
void Model::for_each_view(Function<void(AbstractView&)> callback)
{
for (auto* view : m_views)
callback(*view);
}
void Model::did_update(unsigned flags)
{
for (auto* client : m_clients)
client->model_did_update(flags);
}
ModelIndex Model::create_index(int row, int column, const void* data) const
{
return ModelIndex(*this, row, column, const_cast<void*>(data));
}
ModelIndex Model::index(int row, int column, const ModelIndex&) const
{
return create_index(row, column);
}
bool Model::accepts_drag(const ModelIndex&, const Vector<String>&) const
{
return false;
}
void Model::register_client(ModelClient& client)
{
m_clients.set(&client);
}
void Model::unregister_client(ModelClient& client)
{
m_clients.remove(&client);
}
RefPtr<Core::MimeData> Model::mime_data(const ModelSelection& selection) const
{
auto mime_data = Core::MimeData::construct();
RefPtr<Gfx::Bitmap> bitmap;
StringBuilder text_builder;
StringBuilder data_builder;
bool first = true;
selection.for_each_index([&](auto& index) {
auto text_data = index.data();
if (!first)
text_builder.append(", ");
text_builder.append(text_data.to_string());
if (!first)
data_builder.append('\n');
auto data = index.data(ModelRole::MimeData);
data_builder.append(data.to_string());
first = false;
if (!bitmap) {
Variant icon_data = index.data(ModelRole::Icon);
if (icon_data.is_icon())
bitmap = icon_data.as_icon().bitmap_for_size(32);
}
});
mime_data->set_data(drag_data_type(), data_builder.to_byte_buffer());
mime_data->set_text(text_builder.to_string());
if (bitmap)
mime_data->set_data("image/x-raw-bitmap", bitmap->serialize_to_byte_buffer());
return mime_data;
}
}