1 files changed, 82 insertions, 0 deletions
diff --git a/src/android/app/src/main/java/org/citra/citra_emu/ui/main/MainPresenter.java b/src/android/app/src/main/java/org/citra/citra_emu/ui/main/MainPresenter.java
new file mode 100644
index 000000000..4e9994c2a
--- /dev/null
+++ b/src/android/app/src/main/java/org/citra/citra_emu/ui/main/MainPresenter.java
@@ -0,0 +1,82 @@
+package org.citra.citra_emu.ui.main;
+
+import android.os.SystemClock;
+
+import org.citra.citra_emu.BuildConfig;
+import org.citra.citra_emu.CitraApplication;
+import org.citra.citra_emu.R;
+import org.citra.citra_emu.features.settings.model.Settings;
+import org.citra.citra_emu.features.settings.utils.SettingsFile;
+import org.citra.citra_emu.model.GameDatabase;
+import org.citra.citra_emu.utils.AddDirectoryHelper;
+
+public final class MainPresenter {
+    public static final int REQUEST_ADD_DIRECTORY = 1;
+    public static final int REQUEST_INSTALL_CIA = 2;
+
+    private final MainView mView;
+    private String mDirToAdd;
+    private long mLastClickTime = 0;
+
+    public MainPresenter(MainView view) {
+        mView = view;
+    }
+
+    public void onCreate() {
+        String versionName = BuildConfig.VERSION_NAME;
+        mView.setVersionString(versionName);
+        refeshGameList();
+    }
+
+    public void launchFileListActivity(int request) {
+        if (mView != null) {
+            mView.launchFileListActivity(request);
+        }
+    }
+
+    public boolean handleOptionSelection(int itemId) {
+        // Double-click prevention, using threshold of 500 ms
+        if (SystemClock.elapsedRealtime() - mLastClickTime < 500) {
+            return false;
+        }
+        mLastClickTime = SystemClock.elapsedRealtime();
+
+        switch (itemId) {
+            case R.id.menu_settings_core:
+                mView.launchSettingsActivity(SettingsFile.FILE_NAME_CONFIG);
+                return true;
+
+            case R.id.button_add_directory:
+                launchFileListActivity(REQUEST_ADD_DIRECTORY);
+                return true;
+
+            case R.id.button_install_cia:
+                launchFileListActivity(REQUEST_INSTALL_CIA);
+                return true;
+
+            case R.id.button_premium:
+                mView.launchSettingsActivity(Settings.SECTION_PREMIUM);
+                return true;
+        }
+
+        return false;
+    }
+
+    public void addDirIfNeeded(AddDirectoryHelper helper) {
+        if (mDirToAdd != null) {
+            helper.addDirectory(mDirToAdd, mView::refresh);
+
+            mDirToAdd = null;
+        }
+    }
+
+    public void onDirectorySelected(String dir) {
+        mDirToAdd = dir;
+    }
+
+    public void refeshGameList() {
+        GameDatabase databaseHelper = CitraApplication.databaseHelper;
+        databaseHelper.scanLibrary(databaseHelper.getWritableDatabase());
+        mView.refresh();
+    }
+}