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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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22
Applications/FileManager/DirectoryView.cpp
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@ -95,16 +95,7 @@ DirectoryView::DirectoryView()
on_path_change(model().root_path());
};
// NOTE: We're using the on_update hook on the GUI::SortingProxyModel here instead of
// the GUI::FileSystemModel's hook. This is because GUI::SortingProxyModel has already
// installed an on_update hook on the GUI::FileSystemModel internally.
// FIXME: This is an unfortunate design. We should come up with something better.
m_table_view->model()->on_update = [this] {
for_each_view_implementation([](auto& view) {
view.selection().clear();
});
update_statusbar();
};
m_model->register_client(*this);
m_model->on_thumbnail_progress = [this](int done, int total) {
if (on_thumbnail_progress)
@ -169,6 +160,17 @@ DirectoryView::DirectoryView()
DirectoryView::~DirectoryView()
{
m_model->unregister_client(*this);
}
void DirectoryView::on_model_update(unsigned flags)
{
if (flags & GUI::Model::UpdateFlag::InvalidateAllIndexes) {
for_each_view_implementation([](auto& view) {
view.selection().clear();
});
}
update_statusbar();
}
void DirectoryView::set_view_mode(ViewMode mode)