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LibGUI: Add ModelClient abstract class and allow registering clients

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This solves a problem where the SortingProxyModel doesn't
receive the on_update call because other code overwrote
the handler later on.
This commit is contained in:
Tom 2020-07-11 06:47:26 -06:00 • committed by Andreas Kling
parent 0e10a92ebc
commit b778804d20
13 changed files with 144 additions and 60 deletions
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15
Libraries/LibGUI/Model.cpp
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@ -55,8 +55,9 @@ void Model::for_each_view(Function<void(AbstractView&)> callback)
void Model::did_update(unsigned flags)
{
if (on_update)
on_update();
for (auto* client : m_clients)
client->on_model_update(flags);
for_each_view([&](auto& view) {
view.did_update_model(flags);
});
@ -82,4 +83,14 @@ bool Model::accepts_drag(const ModelIndex&, const StringView&)
return false;
}
void Model::register_client(ModelClient& client)
{
m_clients.set(&client);
}
void Model::unregister_client(ModelClient& client)
{
m_clients.remove(&client);
}
}