From 75663d0601e4920b8164e810f76679d27e894867 Mon Sep 17 00:00:00 2001
From: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>
Date: Sun, 21 Jan 2024 22:27:04 +0200
Subject: [PATCH] More app folder utilities

---
 include/emulator.hpp         |  2 ++
 src/emulator.cpp             | 39 ++++++++++++++++++++----------------
 src/panda_qt/main_window.cpp | 11 ++++++++--
 3 files changed, 33 insertions(+), 19 deletions(-)

diff --git a/include/emulator.hpp b/include/emulator.hpp
index f45374253..da12c1bdc 100644
--- a/include/emulator.hpp
+++ b/include/emulator.hpp
@@ -128,6 +128,8 @@ class Emulator {
 
 	std::filesystem::path getConfigPath();
 	std::filesystem::path getAndroidAppPath();
+	// Get the root path for the emulator's app data
+	std::filesystem::path getAppDataRoot();
 
 	std::span<u8> getSMDH();
 };
diff --git a/src/emulator.cpp b/src/emulator.cpp
index e94170a28..673e0ebc0 100644
--- a/src/emulator.cpp
+++ b/src/emulator.cpp
@@ -117,25 +117,16 @@ void Emulator::runFrame() {
 	}
 }
 
-bool Emulator::loadROM(const std::filesystem::path& path) {
-	// Reset the emulator if we've already loaded a ROM
-	if (romType != ROMType::None) {
-		reset(ReloadOption::NoReload);
-	}
-
-	// Reset whatever state needs to be reset before loading a new ROM
-	memory.loadedCXI = std::nullopt;
-	memory.loaded3DSX = std::nullopt;
-
-	// Get path for saving files (AppData on Windows, /home/user/.local/share/ApplicationName on Linux, etc)
-	// Inside that path, we be use a game-specific folder as well. Eg if we were loading a ROM called PenguinDemo.3ds, the savedata would be in
-	// %APPDATA%/Alber/PenguinDemo/SaveData on Windows, and so on. We do this because games save data in their own filesystem on the cart.
-	// If the portable build setting is enabled, then those saves go in the executable directory instead
+// Get path for saving files (AppData on Windows, /home/user/.local/share/ApplicationName on Linux, etc)
+// Inside that path, we be use a game-specific folder as well. Eg if we were loading a ROM called PenguinDemo.3ds, the savedata would be in
+// %APPDATA%/Alber/PenguinDemo/SaveData on Windows, and so on. We do this because games save data in their own filesystem on the cart.
+// If the portable build setting is enabled, then those saves go in the executable directory instead
+std::filesystem::path Emulator::getAppDataRoot() {
 	std::filesystem::path appDataPath;
 
-	#ifdef __ANDROID__
+#ifdef __ANDROID__
 	appDataPath = getAndroidAppPath();
-	#else
+#else
 	char* appData;
 	if (!config.usePortableBuild) {
 		appData = SDL_GetPrefPath(nullptr, "Alber");
@@ -145,8 +136,22 @@ bool Emulator::loadROM(const std::filesystem::path& path) {
 		appDataPath = std::filesystem::path(appData) / "Emulator Files";
 	}
 	SDL_free(appData);
-	#endif
+#endif
+
+	return appDataPath;
+}
+
+bool Emulator::loadROM(const std::filesystem::path& path) {
+	// Reset the emulator if we've already loaded a ROM
+	if (romType != ROMType::None) {
+		reset(ReloadOption::NoReload);
+	}
+
+	// Reset whatever state needs to be reset before loading a new ROM
+	memory.loadedCXI = std::nullopt;
+	memory.loaded3DSX = std::nullopt;
 
+	const std::filesystem::path appDataPath = getAppDataRoot();
 	const std::filesystem::path dataPath = appDataPath / path.filename().stem();
 	const std::filesystem::path aesKeysPath = appDataPath / "sysdata" / "aes_keys.txt";
 	IOFile::setAppDataDir(dataPath);
diff --git a/src/panda_qt/main_window.cpp b/src/panda_qt/main_window.cpp
index e390aa44b..5c6611194 100644
--- a/src/panda_qt/main_window.cpp
+++ b/src/panda_qt/main_window.cpp
@@ -1,6 +1,8 @@
 #include "panda_qt/main_window.hpp"
 
+#include <QDesktopServices>
 #include <QFileDialog>
+#include <QString>
 #include <cstdio>
 #include <fstream>
 
@@ -26,8 +28,14 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	// Create and bind actions for them
 	auto loadGameAction = fileMenu->addAction(tr("Load game"));
 	auto loadLuaAction = fileMenu->addAction(tr("Load Lua script"));
+	auto openAppFolderAction = fileMenu->addAction(tr("Open Panda3DS folder"));
+
 	connect(loadGameAction, &QAction::triggered, this, &MainWindow::selectROM);
 	connect(loadLuaAction, &QAction::triggered, this, &MainWindow::selectLuaFile);
+	connect(openAppFolderAction, &QAction::triggered, this, [this]() {
+		QString path = QString::fromStdU16String(emu->getAppDataRoot().u16string());
+		QDesktopServices::openUrl(QUrl::fromLocalFile(path));
+	});
 
 	auto pauseAction = emulationMenu->addAction(tr("Pause"));
 	auto resumeAction = emulationMenu->addAction(tr("Resume"));
@@ -194,8 +202,7 @@ void MainWindow::dumpRomFS() {
 		return;
 	}
 	std::filesystem::path path(folder.toStdU16String());
-	
-	// TODO: This might break if the game accesses RomFS while we're dumping, we should move it to the emulator thread when we've got a message queue going
+
 	messageQueueMutex.lock();
 	RomFS::DumpingResult res = emu->dumpRomFS(path);
 	messageQueueMutex.unlock();