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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/JsonObject.h>
28#include <LibCore/File.h>
29#include <LibGUI/JsonArrayModel.h>
30
31namespace GUI {
32
33void JsonArrayModel::update()
34{
35 auto file = Core::File::construct(m_json_path);
36 if (!file->open(Core::IODevice::ReadOnly)) {
37 dbg() << "Unable to open " << file->filename();
38 m_array.clear();
39 did_update();
40 return;
41 }
42
43 auto json = JsonValue::from_string(file->read_all());
44
45 ASSERT(json.is_array());
46 m_array = json.as_array();
47
48 did_update();
49}
50
51Model::ColumnMetadata JsonArrayModel::column_metadata(int column) const
52{
53 ASSERT(column < static_cast<int>(m_fields.size()));
54 return { 100, m_fields[column].text_alignment };
55}
56
57Variant JsonArrayModel::data(const ModelIndex& index, Role role) const
58{
59 auto& field_spec = m_fields[index.column()];
60 auto& object = m_array.at(index.row()).as_object();
61
62 if (role == Model::Role::Display) {
63 auto& json_field_name = field_spec.json_field_name;
64 auto data = object.get(json_field_name);
65 if (field_spec.massage_for_display)
66 return field_spec.massage_for_display(object);
67 if (data.is_number())
68 return data.to_i32();
69 return object.get(json_field_name).to_string();
70 }
71
72 if (role == Model::Role::Sort) {
73 if (field_spec.massage_for_sort)
74 return field_spec.massage_for_sort(object);
75 return data(index, Role::Display);
76 }
77
78 if (role == Model::Role::Custom) {
79 if (field_spec.massage_for_custom)
80 return field_spec.massage_for_custom(object);
81 return {};
82 }
83
84 return {};
85}
86
87void JsonArrayModel::set_json_path(const String& json_path)
88{
89 if (m_json_path == json_path)
90 return;
91
92 m_json_path = json_path;
93 update();
94}
95
96}