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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/fml/string_conversion.h"
11 #include "flutter/shell/platform/common/engine_switches.h" // nogncheck
12 #include "flutter/shell/platform/common/path_utils.h"
13
14 namespace flutter {
15
16 FlutterProjectBundle::FlutterProjectBundle(
17 const FlutterDesktopEngineProperties& properties)
18 : assets_path_(properties.assets_path),
19 icu_path_(properties.icu_data_path) {
20 if (properties.aot_library_path != nullptr) {
21 aot_library_path_ = std::filesystem::path(properties.aot_library_path);
22 }
23
24 if (properties.dart_entrypoint && properties.dart_entrypoint[0] != '\0') {
25 dart_entrypoint_ = properties.dart_entrypoint;
26 }
27
28 for (int i = 0; i < properties.dart_entrypoint_argc; i++) {
29 dart_entrypoint_arguments_.push_back(
30 std::string(properties.dart_entrypoint_argv[i]));
31 }
32
33 gpu_preference_ =
34 static_cast<FlutterGpuPreference>(properties.gpu_preference);
35
36 ui_thread_policy_ =
37 static_cast<FlutterUIThreadPolicy>(properties.ui_thread_policy);
38
39 // Resolve any relative paths.
40 if (assets_path_.is_relative() || icu_path_.is_relative() ||
41 (!aot_library_path_.empty() && aot_library_path_.is_relative())) {
42 std::filesystem::path executable_location = GetExecutableDirectory();
43 if (executable_location.empty()) {
44 FML_LOG(ERROR)
45 << "Unable to find executable location to resolve resource paths.";
46 assets_path_ = std::filesystem::path();
47 icu_path_ = std::filesystem::path();
48 } else {
49 assets_path_ = std::filesystem::path(executable_location) / assets_path_;
50 icu_path_ = std::filesystem::path(executable_location) / icu_path_;
51 if (!aot_library_path_.empty()) {
52 aot_library_path_ =
53 std::filesystem::path(executable_location) / aot_library_path_;
54 }
55 }
56 }
57 }
58
59 bool FlutterProjectBundle::HasValidPaths() {
60 return !assets_path_.empty() && !icu_path_.empty();
61 }
62
63 // Attempts to load AOT data from the given path, which must be absolute and
64 // non-empty. Logs and returns nullptr on failure.
65 UniqueAotDataPtr FlutterProjectBundle::LoadAotData(
66 const FlutterEngineProcTable& engine_procs) {
67 if (aot_library_path_.empty()) {
68 FML_LOG(ERROR)
69 << "Attempted to load AOT data, but no aot_library_path was provided.";
70 return UniqueAotDataPtr(nullptr, nullptr);
71 }
72 if (!std::filesystem::exists(aot_library_path_)) {
73 FML_LOG(ERROR) << "Can't load AOT data from " << aot_library_path_
74 << "; no such file.";
75 return UniqueAotDataPtr(nullptr, nullptr);
76 }
77 std::string path_string = fml::PathToUtf8(aot_library_path_);
78 FlutterEngineAOTDataSource source = {};
79 source.type = kFlutterEngineAOTDataSourceTypeElfPath;
80 source.elf_path = path_string.c_str();
81 FlutterEngineAOTData data = nullptr;
82 auto result = engine_procs.CreateAOTData(&source, &data);
83 if (result != kSuccess) {
84 FML_LOG(ERROR) << "Failed to load AOT data from: " << path_string;
85 return UniqueAotDataPtr(nullptr, nullptr);
86 }
87 return UniqueAotDataPtr(data, engine_procs.CollectAOTData);
88 }
89
90 FlutterProjectBundle::~FlutterProjectBundle() {}
91
92 void FlutterProjectBundle::SetSwitches(
93 const std::vector<std::string>& switches) {
94 engine_switches_ = switches;
95 }
96
97 const std::vector<std::string> FlutterProjectBundle::GetSwitches() {
98 if (engine_switches_.size() == 0) {
99 return GetSwitchesFromEnvironment();
100 }
101 std::vector<std::string> switches;
102 switches.insert(switches.end(), engine_switches_.begin(),
103 engine_switches_.end());
104
105 auto env_switches = GetSwitchesFromEnvironment();
106 switches.insert(switches.end(), env_switches.begin(), env_switches.end());
107
108 return switches;
109 }
110
111 } // namespace flutter
flutter::FlutterProjectBundle::HasValidPaths
bool HasValidPaths()
Definition: flutter_project_bundle.cc:59
flutter::FlutterProjectBundle::GetSwitches
const std::vector< std::string > GetSwitches()
Definition: flutter_project_bundle.cc:97
flutter::FlutterProjectBundle::~FlutterProjectBundle
~FlutterProjectBundle()
Definition: flutter_project_bundle.cc:90
flutter::FlutterProjectBundle::FlutterProjectBundle
FlutterProjectBundle(const FlutterDesktopEngineProperties &properties)
Definition: flutter_project_bundle.cc:16
flutter::FlutterProjectBundle::LoadAotData
UniqueAotDataPtr LoadAotData(const FlutterEngineProcTable &engine_procs)
Definition: flutter_project_bundle.cc:65
flutter::FlutterProjectBundle::SetSwitches
void SetSwitches(const std::vector< std::string > &switches)
Definition: flutter_project_bundle.cc:92
engine_switches.h
flutter_project_bundle.h
flutter
Definition: accessibility_bridge_windows.cc:11
flutter::FlutterUIThreadPolicy
FlutterUIThreadPolicy
Definition: flutter_project_bundle.h:26
flutter::GetSwitchesFromEnvironment
std::vector< std::string > GetSwitchesFromEnvironment()
Definition: engine_switches.cc:14
flutter::GetExecutableDirectory
std::filesystem::path GetExecutableDirectory()
Definition: path_utils.cc:16
flutter::FlutterGpuPreference
FlutterGpuPreference
Definition: flutter_project_bundle.h:20
flutter::UniqueAotDataPtr
std::unique_ptr< _FlutterEngineAOTData, FlutterEngineCollectAOTDataFnPtr > UniqueAotDataPtr
Definition: flutter_project_bundle.h:18
path_utils.h
FlutterDesktopEngineProperties
Definition: flutter_windows.h:64
FlutterDesktopEngineProperties::dart_entrypoint
const char * dart_entrypoint
Definition: flutter_windows.h:87
FlutterDesktopEngineProperties::dart_entrypoint_argc
int dart_entrypoint_argc
Definition: flutter_windows.h:90
FlutterDesktopEngineProperties::dart_entrypoint_argv
const char ** dart_entrypoint_argv
Definition: flutter_windows.h:94
FlutterDesktopEngineProperties::ui_thread_policy
FlutterDesktopUIThreadPolicy ui_thread_policy
Definition: flutter_windows.h:100
FlutterDesktopEngineProperties::aot_library_path
const wchar_t * aot_library_path
Definition: flutter_windows.h:79
FlutterDesktopEngineProperties::gpu_preference
FlutterDesktopGpuPreference gpu_preference
Definition: flutter_windows.h:97