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LibGUI: JsonArrayModel update without invalidating indices

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Add function to update a JsonArrayModel without invalidating it. Now,
for example in the SystemMonitor in the Network tab, a selected line
will not be deselected whenever the data is updated.
This commit is contained in:
martinfalisse
2022-02-17 08:19:38 +01:00
committed by Andreas Kling
parent fd24782d85
commit b6c3fad078
3 changed files with 22 additions and 3 deletions
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18
Userland/Libraries/LibGUI/JsonArrayModel.cpp
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@@ -28,6 +28,24 @@ void JsonArrayModel::invalidate()
did_update();
}
void JsonArrayModel::update()
{
auto file = Core::File::construct(m_json_path);
if (!file->open(Core::OpenMode::ReadOnly)) {
dbgln("Unable to open {}", file->filename());
m_array.clear();
did_update();
return;
}
auto json = JsonValue::from_string(file->read_all()).release_value_but_fixme_should_propagate_errors();
VERIFY(json.is_array());
m_array = json.as_array();
did_update(GUI::Model::UpdateFlag::DontInvalidateIndices);
}
bool JsonArrayModel::store()
{
auto file = Core::File::construct(m_json_path);