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flutter_project_bundle.cc
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "flutter/shell/platform/windows/flutter_project_bundle.h"
6
7 #include <filesystem>
8
9 #include "flutter/fml/logging.h"
10 #include "flutter/shell/platform/common/engine_switches.h" // nogncheck
11 #include "flutter/shell/platform/common/path_utils.h"
12
13 namespace flutter {
14
15 FlutterProjectBundle::FlutterProjectBundle(
16 const FlutterDesktopEngineProperties& properties)
17 : assets_path_(properties.assets_path),
18 icu_path_(properties.icu_data_path) {
19 if (properties.aot_library_path != nullptr) {
20 aot_library_path_ = std::filesystem::path(properties.aot_library_path);
21 }
22
23 if (properties.dart_entrypoint && properties.dart_entrypoint[0] != '\0') {
24 dart_entrypoint_ = properties.dart_entrypoint;
25 }
26
27 for (int i = 0; i < properties.dart_entrypoint_argc; i++) {
28 dart_entrypoint_arguments_.push_back(
29 std::string(properties.dart_entrypoint_argv[i]));
30 }
31
32 // Resolve any relative paths.
33 if (assets_path_.is_relative() || icu_path_.is_relative() ||
34 (!aot_library_path_.empty() && aot_library_path_.is_relative())) {
35 std::filesystem::path executable_location = GetExecutableDirectory();
36 if (executable_location.empty()) {
37 FML_LOG(ERROR)
38 << "Unable to find executable location to resolve resource paths.";
39 assets_path_ = std::filesystem::path();
40 icu_path_ = std::filesystem::path();
41 } else {
42 assets_path_ = std::filesystem::path(executable_location) / assets_path_;
43 icu_path_ = std::filesystem::path(executable_location) / icu_path_;
44 if (!aot_library_path_.empty()) {
45 aot_library_path_ =
46 std::filesystem::path(executable_location) / aot_library_path_;
47 }
48 }
49 }
50 }
51
52 bool FlutterProjectBundle::HasValidPaths() {
53 return !assets_path_.empty() && !icu_path_.empty();
54 }
55
56 // Attempts to load AOT data from the given path, which must be absolute and
57 // non-empty. Logs and returns nullptr on failure.
58 UniqueAotDataPtr FlutterProjectBundle::LoadAotData(
59 const FlutterEngineProcTable& engine_procs) {
60 if (aot_library_path_.empty()) {
61 FML_LOG(ERROR)
62 << "Attempted to load AOT data, but no aot_library_path was provided.";
63 return UniqueAotDataPtr(nullptr, nullptr);
64 }
65 if (!std::filesystem::exists(aot_library_path_)) {
66 FML_LOG(ERROR) << "Can't load AOT data from "
67 << aot_library_path_.u8string() << "; no such file.";
68 return UniqueAotDataPtr(nullptr, nullptr);
69 }
70 std::string path_string = aot_library_path_.u8string();
71 FlutterEngineAOTDataSource source = {};
72 source.type = kFlutterEngineAOTDataSourceTypeElfPath;
73 source.elf_path = path_string.c_str();
74 FlutterEngineAOTData data = nullptr;
75 auto result = engine_procs.CreateAOTData(&source, &data);
76 if (result != kSuccess) {
77 FML_LOG(ERROR) << "Failed to load AOT data from: " << path_string;
78 return UniqueAotDataPtr(nullptr, nullptr);
79 }
80 return UniqueAotDataPtr(data, engine_procs.CollectAOTData);
81 }
82
83 FlutterProjectBundle::~FlutterProjectBundle() {}
84
85 void FlutterProjectBundle::SetSwitches(
86 const std::vector<std::string>& switches) {
87 engine_switches_ = switches;
88 }
89
90 const std::vector<std::string> FlutterProjectBundle::GetSwitches() {
91 if (engine_switches_.size() == 0) {
92 return GetSwitchesFromEnvironment();
93 }
94 std::vector<std::string> switches;
95 switches.insert(switches.end(), engine_switches_.begin(),
96 engine_switches_.end());
97
98 auto env_switches = GetSwitchesFromEnvironment();
99 switches.insert(switches.end(), env_switches.begin(), env_switches.end());
100
101 return switches;
102 }
103
104 } // namespace flutter
FlutterDesktopEngineProperties::aot_library_path
const wchar_t * aot_library_path
Definition: flutter_windows.h:54
flutter::UniqueAotDataPtr
std::unique_ptr< _FlutterEngineAOTData, FlutterEngineCollectAOTDataFnPtr > UniqueAotDataPtr
Definition: flutter_project_bundle.h:18
FlutterDesktopEngineProperties
Definition: flutter_windows.h:39
flutter::FlutterProjectBundle::GetSwitches
const std::vector< std::string > GetSwitches()
Definition: flutter_project_bundle.cc:90
FlutterDesktopEngineProperties::dart_entrypoint_argv
const char ** dart_entrypoint_argv
Definition: flutter_windows.h:69
flutter::GetExecutableDirectory
std::filesystem::path GetExecutableDirectory()
Definition: path_utils.cc:16
FlutterDesktopEngineProperties::dart_entrypoint
const char * dart_entrypoint
Definition: flutter_windows.h:62
path_utils.h
flutter_project_bundle.h
flutter
Definition: accessibility_bridge_windows.cc:11
flutter::GetSwitchesFromEnvironment
std::vector< std::string > GetSwitchesFromEnvironment()
Definition: engine_switches.cc:14
engine_switches.h
flutter::FlutterProjectBundle::~FlutterProjectBundle
~FlutterProjectBundle()
Definition: flutter_project_bundle.cc:83
flutter::FlutterProjectBundle::FlutterProjectBundle
FlutterProjectBundle(const FlutterDesktopEngineProperties &properties)
Definition: flutter_project_bundle.cc:15
FlutterDesktopEngineProperties::dart_entrypoint_argc
int dart_entrypoint_argc
Definition: flutter_windows.h:65
flutter::FlutterProjectBundle::LoadAotData
UniqueAotDataPtr LoadAotData(const FlutterEngineProcTable &engine_procs)
Definition: flutter_project_bundle.cc:58
flutter::FlutterProjectBundle::HasValidPaths
bool HasValidPaths()
Definition: flutter_project_bundle.cc:52
flutter::FlutterProjectBundle::SetSwitches
void SetSwitches(const std::vector< std::string > &switches)
Definition: flutter_project_bundle.cc:85