Add files to draft edited within 3 minutes

app/src/main/java/eu/faircode/email/ActivityCompose.java

@@ -22,6 +22,7 @@ package eu.faircode.email;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
 import android.text.Html;
@@ -35,15 +36,19 @@ import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.LifecycleOwner;
+import androidx.preference.PreferenceManager;
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 import java.util.Map;
 
 public class ActivityCompose extends ActivityBase implements FragmentManager.OnBackStackChangedListener {
     static final int PI_REPLY = 1;
 
+    private static final long APPEND_ATTACHMENT_INTERVAL = 3 * 60 * 1000L;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -207,8 +212,13 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
             args = intent.getExtras();
 
         FragmentManager fm = getSupportFragmentManager();
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+
+        long now = new Date().getTime();
+        long last = prefs.getLong("last_composed", 0L);
 
         if (!create &&
+                now - last < APPEND_ATTACHMENT_INTERVAL &&
                 args.size() == 1 && args.containsKey("attachments")) {
             List<Fragment> fragments = fm.getFragments();
             if (fragments.size() == 1) {

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -1419,13 +1419,18 @@ public class FragmentCompose extends FragmentBase {
 
     @Override
     public void onPause() {
+        final Context context = getContext();
+
         if (state == State.LOADED) {
             Bundle extras = new Bundle();
             extras.putBoolean("autosave", true);
             onAction(R.id.action_save, extras, "pause");
+
+            SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+            prefs.edit().putLong("last_composed", new Date().getTime()).apply();
         }
 
-        ConnectivityManager cm = (ConnectivityManager) getContext().getSystemService(Context.CONNECTIVITY_SERVICE);
+        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
         cm.unregisterNetworkCallback(networkCallback);
 
         super.onPause();