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587f9af960
Also add slightly richer parse errors now that we can include a string literal with returned errors. This will allow us to use TRY() when working with JSON data.
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()).release_value_but_fixme_should_propagate_errors();
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VERIFY(json.is_array());
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m_array = json.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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