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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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18
Libraries/LibGUI/ModelSelection.h
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@ -26,7 +26,9 @@
#pragma once
#include <AK/Badge.h>
#include <AK/HashTable.h>
#include <AK/TemporaryChange.h>
#include <AK/Vector.h>
#include <LibGUI/ModelIndex.h>
@ -91,9 +93,25 @@ public:
void remove_matching(Function<bool(const ModelIndex&)>);
template<typename Function>
void change_from_model(Badge<SortingProxyModel>, Function f)
{
{
TemporaryChange change(m_disable_notify, true);
m_notify_pending = false;
f(*this);
}
if (m_notify_pending)
notify_selection_changed();
}
private:
void notify_selection_changed();
AbstractView& m_view;
HashTable<ModelIndex> m_indexes;
bool m_disable_notify { false };
bool m_notify_pending { false };
};
}