ca2c81251a
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>
137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/JsonObject.h>
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#include <LibCore/File.h>
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#include <LibGUI/JsonArrayModel.h>
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namespace GUI {
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void JsonArrayModel::invalidate()
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{
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auto file = Core::File::construct(m_json_path);
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if (!file->open(Core::OpenMode::ReadOnly)) {
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dbgln("Unable to open {}", file->filename());
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m_array.clear();
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did_update();
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return;
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}
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auto json = JsonValue::from_string(file->read_all());
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VERIFY(json.has_value());
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VERIFY(json.value().is_array());
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m_array = json.value().as_array();
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did_update();
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}
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bool JsonArrayModel::store()
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{
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auto file = Core::File::construct(m_json_path);
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if (!file->open(Core::OpenMode::WriteOnly)) {
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dbgln("Unable to open {}", file->filename());
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return false;
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}
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file->write(m_array.to_string());
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file->close();
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return true;
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}
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bool JsonArrayModel::add(const Vector<JsonValue>&& values)
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{
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VERIFY(values.size() == m_fields.size());
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JsonObject obj;
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for (size_t i = 0; i < m_fields.size(); ++i) {
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auto& field_spec = m_fields[i];
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obj.set(field_spec.json_field_name, values.at(i));
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}
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m_array.append(move(obj));
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did_update();
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return true;
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}
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bool JsonArrayModel::set(int row, Vector<JsonValue>&& values)
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{
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VERIFY(values.size() == m_fields.size());
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if ((size_t)row >= m_array.size())
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return false;
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JsonObject obj;
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for (size_t i = 0; i < m_fields.size(); ++i) {
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auto& field_spec = m_fields[i];
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obj.set(field_spec.json_field_name, move(values.at(i)));
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}
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m_array.set(row, move(obj));
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did_update();
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return true;
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}
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bool JsonArrayModel::remove(int row)
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{
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if ((size_t)row >= m_array.size())
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return false;
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JsonArray new_array;
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for (size_t i = 0; i < m_array.size(); ++i)
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if (i != (size_t)row)
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new_array.append(m_array.at(i));
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m_array = new_array;
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did_update();
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return true;
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}
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Variant JsonArrayModel::data(const ModelIndex& index, ModelRole role) const
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{
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auto& field_spec = m_fields[index.column()];
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auto& object = m_array.at(index.row()).as_object();
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if (role == ModelRole::TextAlignment) {
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return field_spec.text_alignment;
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}
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if (role == ModelRole::Display) {
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auto& json_field_name = field_spec.json_field_name;
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auto data = object.get(json_field_name);
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if (field_spec.massage_for_display)
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return field_spec.massage_for_display(object);
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if (data.is_number())
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return data;
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return object.get(json_field_name).to_string();
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}
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if (role == ModelRole::Sort) {
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if (field_spec.massage_for_sort)
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return field_spec.massage_for_sort(object);
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return data(index, ModelRole::Display);
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}
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if (role == ModelRole::Custom) {
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if (field_spec.massage_for_custom)
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return field_spec.massage_for_custom(object);
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return {};
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}
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return {};
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}
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void JsonArrayModel::set_json_path(const String& json_path)
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{
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if (m_json_path == json_path)
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return;
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m_json_path = json_path;
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invalidate();
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}
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}
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