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mirror of synced 2024-12-23 21:14:51 +01:00
ImHex/lib/libimhex/source/helpers/fs.cpp

372 lines
14 KiB
C++

#include <hex/helpers/fs.hpp>
#include <hex/api/imhex_api.hpp>
#include <hex/api/project_file_manager.hpp>
#include <hex/helpers/logger.hpp>
#include <hex/helpers/fmt.hpp>
#include <hex/helpers/utils_linux.hpp>
#include <hex/helpers/auto_reset.hpp>
#if defined(OS_WINDOWS)
#include <windows.h>
#include <shlobj.h>
#include <shellapi.h>
#elif defined(OS_LINUX) || defined(OS_WEB)
#include <xdg.hpp>
# if defined(OS_FREEBSD)
#include <sys/syslimits.h>
# else
#include <limits.h>
# endif
#endif
#if defined(OS_WEB)
#include <emscripten.h>
#else
#include <GLFW/glfw3.h>
#include <nfd.hpp>
#if defined(OS_WINDOWS)
#define GLFW_EXPOSE_NATIVE_WIN32
#endif
#if defined(OS_MACOS)
// macOS platform headers can't be compiled with gcc
#define GLFW_NATIVE_INCLUDE_NONE
typedef uint32_t CGDirectDisplayID;
typedef void *id;
typedef void NSWindow;
#define GLFW_EXPOSE_NATIVE_COCOA
#endif
#if defined(OS_LINUX)
#if GLFW_VERSION_MAJOR == 3 && GLFW_VERSION_MINOR >= 4
#define GLFW_EXPOSE_NATIVE_X11
#else
#define GLFW_EXPOSE_NATIVE_WAYLAND
#endif
#endif
#include <nfd_glfw3.h>
#if defined(OS_LINUX) && GLFW_VERSION_MAJOR == 3 && GLFW_VERSION_MINOR >= 4
#if GLFW_VERSION_MAJOR == 3 && GLFW_VERSION_MINOR >= 4
#undef GLFW_EXPOSE_NATIVE_X11
#else
#undef GLFW_EXPOSE_NATIVE_WAYLAND
#endif
#endif
#if defined(OS_MACOS)
#undef GLFW_EXPOSE_NATIVE_COCOA
#undef GLFW_NATIVE_INCLUDE_NONE
#endif
#if defined(OS_WINDOWS)
#undef GLFW_EXPOSE_NATIVE_WIN32
#endif
#endif
#include <filesystem>
#include <wolv/io/file.hpp>
#include <wolv/io/fs.hpp>
#include <wolv/utils/string.hpp>
#include <fmt/format.h>
#include <fmt/xchar.h>
namespace hex::fs {
static AutoReset<std::function<void(const std::string&)>> s_fileBrowserErrorCallback;
void setFileBrowserErrorCallback(const std::function<void(const std::string&)> &callback) {
s_fileBrowserErrorCallback = callback;
}
// With help from https://github.com/owncloud/client/blob/cba22aa34b3677406e0499aadd126ce1d94637a2/src/gui/openfilemanager.cpp
void openFileExternal(const std::fs::path &filePath) {
// Make sure the file exists before trying to open it
if (!wolv::io::fs::exists(filePath)) {
return;
}
#if defined(OS_WINDOWS)
hex::unused(
ShellExecuteW(nullptr, L"open", filePath.c_str(), nullptr, nullptr, SW_SHOWNORMAL)
);
#elif defined(OS_MACOS)
hex::unused(system(
hex::format("open {}", wolv::util::toUTF8String(filePath)).c_str()
));
#elif defined(OS_LINUX)
executeCmd({"xdg-open", wolv::util::toUTF8String(filePath)});
#endif
}
void openFolderExternal(const std::fs::path &dirPath) {
// Make sure the folder exists before trying to open it
if (!wolv::io::fs::exists(dirPath)) {
return;
}
#if defined(OS_WINDOWS)
auto args = fmt::format(L"\"{}\"", dirPath.c_str());
ShellExecuteW(nullptr, L"open", L"explorer.exe", args.c_str(), nullptr, SW_SHOWNORMAL);
#elif defined(OS_MACOS)
hex::unused(system(
hex::format("open {}", wolv::util::toUTF8String(dirPath)).c_str()
));
#elif defined(OS_LINUX)
executeCmd({"xdg-open", wolv::util::toUTF8String(dirPath)});
#endif
}
void openFolderWithSelectionExternal(const std::fs::path &selectedFilePath) {
// Make sure the file exists before trying to open it
if (!wolv::io::fs::exists(selectedFilePath)) {
return;
}
#if defined(OS_WINDOWS)
auto args = fmt::format(L"/select,\"{}\"", selectedFilePath.c_str());
ShellExecuteW(nullptr, L"open", L"explorer.exe", args.c_str(), nullptr, SW_SHOWNORMAL);
#elif defined(OS_MACOS)
hex::unused(system(
hex::format(
R"(osascript -e 'tell application "Finder" to reveal POSIX file "{}"')",
wolv::util::toUTF8String(selectedFilePath)
).c_str()
));
system(R"(osascript -e 'tell application "Finder" to activate')");
#elif defined(OS_LINUX)
// Fallback to only opening the folder for now
// TODO actually select the file
executeCmd({"xdg-open", wolv::util::toUTF8String(selectedFilePath.parent_path())});
#endif
}
#if defined(OS_WEB)
std::function<void(std::fs::path)> currentCallback;
EMSCRIPTEN_KEEPALIVE
extern "C" void fileBrowserCallback(char* path) {
currentCallback(path);
}
EM_JS(int, callJs_saveFile, (const char *rawFilename), {
let filename = UTF8ToString(rawFilename) || "file.bin";
FS.createPath("/", "savedFiles");
if (FS.analyzePath(filename).exists) {
FS.unlink(filename);
}
// Call callback that will write the file
Module._fileBrowserCallback(stringToNewUTF8("/savedFiles/" + filename));
let data = FS.readFile("/savedFiles/" + filename);
const reader = Object.assign(new FileReader(), {
onload: () => {
// Show popup to user to download
let saver = document.createElement('a');
saver.href = reader.result;
saver.download = filename;
saver.style = "display: none";
saver.click();
},
onerror: () => {
throw new Error(reader.error);
},
});
reader.readAsDataURL(new File([data], "", { type: "application/octet-stream" }));
});
EM_JS(int, callJs_openFile, (bool multiple), {
let selector = document.createElement("input");
selector.type = "file";
selector.style = "display: none";
if (multiple) {
selector.multiple = true;
}
selector.onchange = () => {
if (selector.files.length == 0) return;
FS.createPath("/", "openedFiles");
for (let file of selector.files) {
const fr = new FileReader();
fr.onload = () => {
let folder = "/openedFiles/"+Math.random().toString(36).substring(2)+"/";
FS.createPath("/", folder);
if (FS.analyzePath(folder+file.name).exists) {
console.log(`Error: ${folder+file.name} already exist`);
} else {
FS.createDataFile(folder, file.name, fr.result, true, true);
Module._fileBrowserCallback(stringToNewUTF8(folder+file.name));
}
};
fr.readAsBinaryString(file);
}
};
selector.click();
});
bool openFileBrowser(DialogMode mode, const std::vector<ItemFilter> &validExtensions, const std::function<void(std::fs::path)> &callback, const std::string &defaultPath, bool multiple) {
switch (mode) {
case DialogMode::Open: {
currentCallback = callback;
callJs_openFile(multiple);
break;
}
case DialogMode::Save: {
currentCallback = callback;
std::fs::path path;
if (!defaultPath.empty())
path = std::fs::path(defaultPath).filename();
else if (!validExtensions.empty())
path = "file." + validExtensions[0].spec;
callJs_saveFile(path.filename().string().c_str());
break;
}
case DialogMode::Folder: {
throw std::logic_error("Selecting a folder is not implemented");
return false;
}
default:
std::unreachable();
}
return true;
}
#else
bool openFileBrowser(DialogMode mode, const std::vector<ItemFilter> &validExtensions, const std::function<void(std::fs::path)> &callback, const std::string &defaultPath, bool multiple) {
// Turn the content of the ItemFilter objects into something NFD understands
std::vector<nfdfilteritem_t> validExtensionsNfd;
validExtensionsNfd.reserve(validExtensions.size());
for (const auto &extension : validExtensions) {
validExtensionsNfd.emplace_back(nfdfilteritem_t{ extension.name.c_str(), extension.spec.c_str() });
}
// Clear errors from previous runs
NFD::ClearError();
// Try to initialize NFD
if (NFD::Init() != NFD_OKAY) {
// Handle errors if initialization failed
log::error("NFD init returned an error: {}", NFD::GetError());
if (*s_fileBrowserErrorCallback != nullptr) {
const auto error = NFD::GetError();
(*s_fileBrowserErrorCallback)(error != nullptr ? error : "No details");
}
return false;
}
NFD::UniquePathU8 outPath;
NFD::UniquePathSet outPaths;
nfdresult_t result = NFD_ERROR;
nfdwindowhandle_t nativeWindow{};
NFD_GetNativeWindowFromGLFWWindow(ImHexApi::System::getMainWindowHandle(), &nativeWindow);
// Open the correct file dialog based on the mode
switch (mode) {
case DialogMode::Open:
if (multiple)
result = NFD::OpenDialogMultiple(outPaths, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str(), nativeWindow);
else
result = NFD::OpenDialog(outPath, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str(), nativeWindow);
break;
case DialogMode::Save:
result = NFD::SaveDialog(outPath, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str(), nullptr, nativeWindow);
break;
case DialogMode::Folder:
result = NFD::PickFolder(outPath, defaultPath.empty() ? nullptr : defaultPath.c_str(), nativeWindow);
break;
}
if (result == NFD_OKAY){
// Handle the path if the dialog was opened in single mode
if (outPath != nullptr) {
// Call the provided callback with the path
callback(outPath.get());
}
// Handle multiple paths if the dialog was opened in multiple mode
if (outPaths != nullptr) {
nfdpathsetsize_t numPaths = 0;
if (NFD::PathSet::Count(outPaths, numPaths) == NFD_OKAY) {
// Loop over all returned paths and call the callback with each of them
for (size_t i = 0; i < numPaths; i++) {
NFD::UniquePathSetPath path;
if (NFD::PathSet::GetPath(outPaths, i, path) == NFD_OKAY)
callback(path.get());
}
}
}
} else if (result == NFD_ERROR) {
// Handle errors that occurred during the file dialog call
log::error("Requested file dialog returned an error: {}", NFD::GetError());
if (*s_fileBrowserErrorCallback != nullptr) {
const auto error = NFD::GetError();
(*s_fileBrowserErrorCallback)(error != nullptr ? error : "No details");
}
}
NFD::Quit();
return result == NFD_OKAY;
}
#endif
bool isPathWritable(const std::fs::path &path) {
constexpr static auto TestFileName = "__imhex__tmp__";
// Try to open the __imhex__tmp__ file in the given path
// If one does exist already, try to delete it
{
wolv::io::File file(path / TestFileName, wolv::io::File::Mode::Read);
if (file.isValid()) {
if (!file.remove())
return false;
}
}
// Try to create a new file in the given path
// If that fails, or the file cannot be deleted anymore afterward; the path is not writable
wolv::io::File file(path / TestFileName, wolv::io::File::Mode::Create);
const bool result = file.isValid();
if (!file.remove())
return false;
return result;
}
std::fs::path toShortPath(const std::fs::path &path) {
#if defined(OS_WINDOWS)
// Get the size of the short path
size_t size = GetShortPathNameW(path.c_str(), nullptr, 0);
if (size == 0)
return path;
// Get the short path
std::wstring newPath(size, 0x00);
GetShortPathNameW(path.c_str(), newPath.data(), newPath.size());
newPath.pop_back();
return newPath;
#else
// Other supported platforms don't have short paths
return path;
#endif
}
}