ladybird/Libraries/LibGUI/JsonArrayModel.cpp

96 lines
3.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/JsonObject.h>
#include <LibCore/File.h>
#include <LibGUI/JsonArrayModel.h>
namespace GUI {
void JsonArrayModel::update()
{
auto file = Core::File::construct(m_json_path);
if (!file->open(Core::IODevice::ReadOnly)) {
dbg() << "Unable to open " << file->filename();
m_array.clear();
did_update();
return;
}
auto json = JsonValue::from_string(file->read_all());
ASSERT(json.is_array());
m_array = json.as_array();
did_update();
}
Model::ColumnMetadata JsonArrayModel::column_metadata(int column) const
{
ASSERT(column < static_cast<int>(m_fields.size()));
return { 100, m_fields[column].text_alignment };
}
Variant JsonArrayModel::data(const ModelIndex& index, Role role) const
{
auto& field_spec = m_fields[index.column()];
auto& object = m_array.at(index.row()).as_object();
if (role == Model::Role::Display) {
auto& json_field_name = field_spec.json_field_name;
auto data = object.get(json_field_name);
if (field_spec.massage_for_display)
return field_spec.massage_for_display(object);
if (data.is_number())
return data.to_i32();
return object.get(json_field_name).to_string();
}
if (role == Model::Role::Sort) {
if (field_spec.massage_for_sort)
return field_spec.massage_for_sort(object);
return data(index, Role::Display);
}
if (role == Model::Role::Custom) {
if (field_spec.massage_for_custom)
return field_spec.massage_for_custom(object);
return {};
}
return {};
}
void JsonArrayModel::set_json_path(const String& json_path)
{
if (m_json_path == json_path)
return;
m_json_path = json_path;
update();
}
}