Merged GameLauncher and GameActivity together

The GameActivity would not run otherwise as the App started via
GameActivity would call in love::android::getSelectedGameFile() the wrong
activity (namely GameLauncher) that was not initialized properly. Hence it
would result in a segfault.

src/org/love2d/android/GameActivity.java

@@ -1,20 +1,97 @@
 package org.love2d.android;
 
 import org.libsdl.app.SDLActivity;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import android.net.Uri;
 import android.os.Bundle;
+import android.util.Log;
 import android.util.DisplayMetrics;
 
 public class GameActivity extends SDLActivity {
     private static DisplayMetrics metrics = new DisplayMetrics();
-	
-	@Override
+
+    private static String gamePath = "";
+
+    @Override
     protected void onCreate(Bundle savedInstanceState) {
+        Uri game = this.getIntent().getData();
+        if (game != null) {
+          if (game.getScheme().equals ("file")) {
+            gamePath = game.getPath();
+          } else {
+            copyGameToCache (game);
+          }
+          Log.d("GameActivity", "Selected the file: " + getGamePath());
+        }
+
         super.onCreate(savedInstanceState);
-        
         getWindowManager().getDefaultDisplay().getMetrics(metrics);
     }
-    
-    public static DisplayMetrics getMetrics() {
+
+    public static String getGamePath() {
+			Log.d ("GameActivity", "called getGamePath(), game path = " + gamePath);
+        return gamePath;
+    }
+
+		public static DisplayMetrics getMetrics() {
         return metrics;
     }
+  
+    void copyGameToCache (Uri sourceuri)
+    {
+      String destinationFilename = this.getCacheDir().getPath()+"/downloaded.love";
+      gamePath = destinationFilename;
+
+      BufferedOutputStream bos = null;
+      try {
+        bos = new BufferedOutputStream(new FileOutputStream(destinationFilename, false));
+      } catch (IOException e) {
+        Log.d ("GameActivity", "Could not open destination file:" + e.getMessage());
+      }
+
+      int chunk_read = 0;
+      int bytes_written = 0;
+
+      BufferedInputStream bis = null;
+      if (sourceuri.getScheme().equals("content")) {
+        try {
+          bis = new BufferedInputStream(getContentResolver().openInputStream(sourceuri));
+        } catch (IOException e) {
+          Log.d ("GameActivity", "Could not open game file:" + e.getMessage());
+        }
+      } else {
+        Log.d ("GameActivity", "Unsupported scheme: " + sourceuri.getScheme());
+      }
+
+      if (bis != null) {
+        // actual copying
+        try {
+          byte[] buf = new byte[1024];
+          chunk_read = bis.read(buf);
+          do {
+            bos.write(buf, 0, chunk_read);
+            bytes_written += chunk_read;
+            chunk_read = bis.read(buf);        
+          } while(chunk_read != -1);
+        } catch (IOException e) {
+          Log.d ("GameActivity", "Copying failed:" + e.getMessage());
+        } 
+      }
+
+      // close streams
+      try {
+        if (bis != null) bis.close();
+        if (bos != null) bos.close();
+      } catch (IOException e) {
+        Log.d ("GameActivity", "Copying failed: " + e.getMessage());
+      }
+
+      Log.d("GameActivity", "Copied " + bytes_written + " bytes");
+    }
+
 }