Lua Patcher and code editor: initial commit

src/jni_driver.cpp

@@ -80,6 +80,12 @@ AlberFunction(void, LoadRom)(JNIEnv* env, jobject obj, jstring path) {
 	env->ReleaseStringUTFChars(path, pathStr);
 }
 
+AlberFunction(void, LoadLuaScript)(JNIEnv* env, jobject obj, jstring script) {
+	const char* scriptStr = env->GetStringUTFChars(script, nullptr);
+	emulator->getLua().loadString(scriptStr);
+	env->ReleaseStringUTFChars(script, scriptStr);
+}
+
 AlberFunction(void, TouchScreenDown)(JNIEnv* env, jobject obj, jint x, jint y) { hidService->setTouchScreenPress((u16)x, (u16)y); }
 AlberFunction(void, TouchScreenUp)(JNIEnv* env, jobject obj) { hidService->releaseTouchScreen(); }
 AlberFunction(void, KeyUp)(JNIEnv* env, jobject obj, jint keyCode) { hidService->releaseKey((u32)keyCode); }

src/pandroid/app/src/main/AndroidManifest.xml

@@ -35,6 +35,10 @@
             android:name=".app.GameActivity"
             android:configChanges="screenSize|screenLayout|orientation|density|uiMode">
         </activity>
+        <activity
+            android:name=".app.editor.CodeEditorActivity"
+            android:configChanges="screenSize|screenLayout|orientation|density|uiMode">
+        </activity>
         <activity android:name=".app.PreferenceActivity"
             android:launchMode="standard"
             android:configChanges="screenSize|screenLayout|orientation|density"/>

src/pandroid/app/src/main/java/com/panda3ds/pandroid/AlberDriver.java

@@ -19,7 +19,7 @@ public class AlberDriver {
 	public static native void TouchScreenDown(int x, int y);
 	public static native void Pause();
 	public static native void Resume();
-
+	public static native void LoadLuaScript(String script);
 	public static native byte[] GetSmdh();
 
 	static { System.loadLibrary("Alber"); }

src/pandroid/app/src/main/java/com/panda3ds/pandroid/app/MainActivity.java

@@ -15,10 +15,13 @@
 import androidx.fragment.app.FragmentManager;
 import com.google.android.material.navigation.NavigationBarView;
 import com.panda3ds.pandroid.R;
+import com.panda3ds.pandroid.app.editor.CodeEditorActivity;
 import com.panda3ds.pandroid.app.main.GamesFragment;
 import com.panda3ds.pandroid.app.main.SearchFragment;
 import com.panda3ds.pandroid.app.main.SettingsFragment;
 
+import java.io.File;
+
 
 public class MainActivity extends BaseActivity implements NavigationBarView.OnItemSelectedListener {
 	private static final int PICK_ROM = 2;
@@ -28,13 +31,6 @@ public class MainActivity extends BaseActivity implements NavigationBarView.OnIt
 	private final SearchFragment searchFragment = new SearchFragment();
 	private final SettingsFragment settingsFragment = new SettingsFragment();
 
-	private void openFile() {
-		Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
-		intent.addCategory(Intent.CATEGORY_OPENABLE);
-		intent.setType("*/*");
-		startActivityForResult(intent, PICK_ROM);
-	}
-
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);

src/pandroid/app/src/main/java/com/panda3ds/pandroid/app/base/BottomDialogFragment.java

@@ -0,0 +1,27 @@
+package com.panda3ds.pandroid.app.base;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.Gravity;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.DialogFragment;
+
+import com.panda3ds.pandroid.R;
+
+public class BottomDialogFragment extends DialogFragment {
+    @Override
+    public int getTheme() {
+        return R.style.AlertDialog;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        Dialog dialog = super.onCreateDialog(savedInstanceState);
+        dialog.getWindow().setGravity(Gravity.CENTER | Gravity.BOTTOM);
+        dialog.getWindow().getAttributes().y = Math.round(getContext().getResources().getDisplayMetrics().density * 15);
+        return dialog;
+    }
+}

src/pandroid/app/src/main/java/com/panda3ds/pandroid/app/editor/CodeEditorActivity.java

@@ -0,0 +1,152 @@
+package com.panda3ds.pandroid.app.editor;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.activity.result.contract.ActivityResultContract;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatTextView;
+
+import com.panda3ds.pandroid.R;
+import com.panda3ds.pandroid.app.BaseActivity;
+import com.panda3ds.pandroid.app.base.BottomAlertDialog;
+import com.panda3ds.pandroid.lang.Task;
+import com.panda3ds.pandroid.utils.FileUtils;
+import com.panda3ds.pandroid.view.code.CodeEditor;
+import com.panda3ds.pandroid.view.code.syntax.CodeSyntax;
+
+import java.io.Serializable;
+
+public class CodeEditorActivity extends BaseActivity {
+    private String path;
+    private String fileName;
+    private CodeEditor editor;
+    private AppCompatTextView title;
+    private View saveButton;
+    private boolean changed = false;
+
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_code_editor);
+        Arguments args = (Arguments) getIntent().getSerializableExtra("args");
+
+        editor = findViewById(R.id.editor);
+
+        path = args.path;
+        fileName = args.fileName;
+        title = findViewById(R.id.title);
+        title.setText(fileName);
+
+        saveButton = findViewById(R.id.save);
+
+        saveButton.setVisibility(View.GONE);
+        saveButton.setOnClickListener(v -> save());
+
+        new Task(() -> {
+            String content = FileUtils.readTextFile(path + "/" + fileName);
+            editor.post(() -> {
+                editor.setText(content);
+                editor.setSyntax(CodeSyntax.obtainByFileName(fileName));
+                editor.setOnContentChangedListener(this::onDocumentContentChanged);
+            });
+        }).start();
+
+        switch (args.type) {
+            case LUA_SCRIPT_EDITOR:
+                setupLuaPatchEditor();
+                break;
+            case READ_ONLY_EDITOR:
+                setupReadOnlyEditor();
+                break;
+        }
+    }
+
+    private void setupReadOnlyEditor() {
+        editor.setEnabled(false);
+        editor.setFocusable(false);
+    }
+
+    private void setupLuaPatchEditor() {
+        findViewById(R.id.lua_toolbar).setVisibility(View.VISIBLE);
+        findViewById(R.id.lua_play).setOnClickListener(v -> {
+            if (changed) {
+                save();
+            }
+            setResult(Activity.RESULT_OK, new Intent(Result.ACTION_PLAY.name()));
+            finish();
+        });
+    }
+
+    @SuppressLint("SetTextI18n")
+    private void onDocumentContentChanged() {
+        title.setText("*" + fileName);
+        changed = true;
+        saveButton.setVisibility(View.VISIBLE);
+    }
+
+    public void save() {
+        title.setText(fileName);
+        saveButton.setVisibility(View.GONE);
+        changed = false;
+        new Task(() -> FileUtils.writeTextFile(path, fileName, String.valueOf(editor.getText()))).runSync();
+    }
+
+    @Override
+    public void onBackPressed() {
+        if (changed) {
+            new BottomAlertDialog(this)
+                    .setNeutralButton(android.R.string.cancel, (dialog, which) -> dialog.dismiss())
+                    .setPositiveButton(R.string.save_and_exit, (dialog, which) -> {
+                        save();
+                        finish();
+                    })
+                    .setNegativeButton(R.string.exit_without_save, (dialog, which) -> finish())
+                    .setTitle(String.format(getString(R.string.exit_without_save_title_ff), fileName)).show();
+        } else {
+            super.onBackPressed();
+        }
+    }
+
+    public static final class Arguments implements Serializable {
+        private final String path;
+        private final String fileName;
+        private final EditorType type;
+
+        public Arguments(String path, String fileName, EditorType type) {
+            this.path = path;
+            this.fileName = fileName;
+            this.type = type;
+        }
+    }
+
+    public enum Result {
+        ACTION_PLAY,
+        NULL
+    }
+
+    public enum EditorType {
+        LUA_SCRIPT_EDITOR,
+        READ_ONLY_EDITOR,
+        TEXT_EDITOR
+    }
+
+    public static final class Contract extends ActivityResultContract<Arguments, Result> {
+        @NonNull
+        @Override
+        public Intent createIntent(@NonNull Context context, Arguments args) {
+            return new Intent(context, CodeEditorActivity.class).putExtra("args", args);
+        }
+
+        @Override
+        public Result parseResult(int i, @Nullable Intent intent) {
+            return i == RESULT_OK && intent != null ? Result.valueOf(intent.getAction()) : Result.NULL;
+        }
+    }
+}

src/pandroid/app/src/main/java/com/panda3ds/pandroid/app/game/DrawerFragment.java

@@ -47,6 +47,7 @@ public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceStat
         ((AppCompatTextView)view.findViewById(R.id.game_publisher)).setText(game.getPublisher());
 
         ((NavigationView)view.findViewById(R.id.action_navigation)).setNavigationItemSelectedListener(this);
+        ((NavigationView)view.findViewById(R.id.hacks_navigation)).setNavigationItemSelectedListener(this);
     }
 
     @Override
@@ -100,6 +101,8 @@ public boolean onNavigationItemSelected(@NonNull MenuItem item) {
             close();
         } else if (id == R.id.exit) {
             requireActivity().onBackPressed();
+        } else if (id == R.id.lua_script){
+            new LuaDialogFragment().show(getParentFragmentManager(),null);
         }
 
         return false;