jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, Dex♪ <dexes.ttp@gmail.com>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <AK/DeprecatedString.h>
8#include <AK/JsonArray.h>
9#include <AK/JsonObject.h>
10#include <AK/Vector.h>
11#include <LibCore/DeprecatedFile.h>
12#include <LibCore/File.h>
13#include <LibCore/StandardPaths.h>
14#include <LibGUI/CommonLocationsProvider.h>
15#include <unistd.h>
16
17namespace GUI {
18
19static bool s_initialized = false;
20static Vector<CommonLocationsProvider::CommonLocation> s_common_locations;
21
22static void initialize_if_needed()
23{
24 if (s_initialized)
25 return;
26
27 auto user_config = DeprecatedString::formatted("{}/CommonLocations.json", Core::StandardPaths::config_directory());
28 if (Core::DeprecatedFile::exists(user_config)) {
29 auto maybe_error = CommonLocationsProvider::load_from_json(user_config);
30 if (!maybe_error.is_error())
31 return;
32 dbgln("Unable to read Common Locations file: {}", maybe_error.error());
33 dbgln("Using the default set instead.");
34 }
35
36 // Fallback : If the user doesn't have custom locations, use some default ones.
37 s_common_locations.append({ "Root", "/" });
38 s_common_locations.append({ "Home", Core::StandardPaths::home_directory() });
39 s_common_locations.append({ "Downloads", Core::StandardPaths::downloads_directory() });
40 s_initialized = true;
41}
42
43ErrorOr<void> CommonLocationsProvider::load_from_json(StringView json_path)
44{
45 auto file = TRY(Core::File::open(json_path, Core::File::OpenMode::Read));
46 auto json = JsonValue::from_string(TRY(file->read_until_eof()));
47 if (json.is_error())
48 return Error::from_string_literal("File is not a valid JSON");
49 if (!json.value().is_array())
50 return Error::from_string_literal("File must contain a JSON array");
51
52 s_common_locations.clear();
53 auto const& contents = json.value().as_array();
54 for (size_t i = 0; i < contents.size(); ++i) {
55 auto entry_value = contents.at(i);
56 if (!entry_value.is_object())
57 continue;
58 auto entry = entry_value.as_object();
59 auto name = entry.get_deprecated_string("name"sv).value_or({});
60 auto path = entry.get_deprecated_string("path"sv).value_or({});
61 TRY(s_common_locations.try_append({ name, path }));
62 }
63
64 s_initialized = true;
65 return {};
66}
67
68Vector<CommonLocationsProvider::CommonLocation> const& CommonLocationsProvider::common_locations()
69{
70 initialize_if_needed();
71 return s_common_locations;
72}
73
74}