If the currently active list is deleted, switch to active tasks

api/src/com/todoroo/astrid/api/AstridApiConstants.java

@@ -262,4 +262,9 @@ public class AstridApiConstants {
      */
     public static final String BROADCAST_EVENT_TASK_REPEATED = PACKAGE + ".TASK_REPEATED";
 
+    /**
+     * Action name for broadcast intent notifying that tag was deleted
+     */
+    public static final String BROADCAST_EVENT_TAG_DELETED = PACKAGE + ".TAG_DELETED";
+
 }

astrid/plugin-src/com/todoroo/astrid/tags/TagFilterExposer.java

@@ -270,6 +270,10 @@ public class TagFilterExposer extends BroadcastReceiver implements AstridFilterE
             }
             Toast.makeText(this, getString(shared ? R.string.TEA_tags_left : R.string.TEA_tags_deleted, tag, deleted),
                     Toast.LENGTH_SHORT).show();
+
+            Intent tagDeleted = new Intent(AstridApiConstants.BROADCAST_EVENT_TAG_DELETED);
+            tagDeleted.putExtra(TagViewFragment.EXTRA_TAG_NAME, tag);
+            sendBroadcast(tagDeleted);
             return true;
         }
 

astrid/src/com/todoroo/astrid/activity/FilterListFragment.java

@@ -352,12 +352,21 @@ public class FilterListFragment extends ListFragment {
         if (mDualFragments)
             getListView().setItemChecked(position, true);
         Filter item = adapter.getItem(position);
+        setFilterItemSelected(item, position);
+    }
+
+    private void setFilterItemSelected(Filter item, int position) {
         mSelectedIndex = position;
         adapter.setLastSelected(mSelectedIndex);
         getActivity().getIntent().putExtra(TOKEN_LAST_SELECTED, mSelectedIndex);
         mListener.onFilterItemClicked(item);
     }
 
+    public void switchToActiveTasks() {
+        if (adapter.getCount() > 0)
+            setFilterItemSelected(adapter.getItem(0), 0);
+    }
+
     @Override
     public void onCreateContextMenu(ContextMenu menu, View v,
             ContextMenuInfo menuInfo) {

astrid/src/com/todoroo/astrid/activity/TaskListActivity.java

@@ -1,7 +1,10 @@
 package com.todoroo.astrid.activity;
 
 import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.os.Bundle;
 import android.support.v4.app.ActionBar;
 import android.support.v4.app.Fragment;
@@ -22,6 +25,8 @@ import com.todoroo.andlib.utility.AndroidUtilities;
 import com.todoroo.astrid.actfm.ActFmLoginActivity;
 import com.todoroo.astrid.actfm.TagSettingsActivity;
 import com.todoroo.astrid.actfm.TagUpdatesFragment;
+import com.todoroo.astrid.actfm.TagViewFragment;
+import com.todoroo.astrid.api.AstridApiConstants;
 import com.todoroo.astrid.api.Filter;
 import com.todoroo.astrid.api.FilterListItem;
 import com.todoroo.astrid.reminders.NotificationFragment;
@@ -47,6 +52,8 @@ public class TaskListActivity extends AstridActivity implements MainMenuListener
     private FragmentPopover commentsPopover;
     private MainMenuPopover mainMenuPopover;
 
+    private final TagDeletedReceiver tagDeletedReceiver = new TagDeletedReceiver();
+
     private final OnClickListener mainMenuClickListener = new OnClickListener() {
         @Override
         public void onClick(View v) {
@@ -276,6 +283,12 @@ public class TaskListActivity extends AstridActivity implements MainMenuListener
         lists.setText(title);
     }
 
+    @Override
+    protected void onResume() {
+        super.onResume();
+        registerReceiver(tagDeletedReceiver, new IntentFilter(AstridApiConstants.BROADCAST_EVENT_TAG_DELETED));
+    }
+
     @Override
     protected void onPause() {
         super.onPause();
@@ -289,6 +302,13 @@ public class TaskListActivity extends AstridActivity implements MainMenuListener
             commentsPopover.dismiss();
     }
 
+    @Override
+    protected void onStop() {
+        super.onStop();
+        System.err.println("Unregistering");
+        unregisterReceiver(tagDeletedReceiver);
+    }
+
     public void setSelectedItem(Filter item) {
        lists.setText(item.title);
     }
@@ -365,4 +385,19 @@ public class TaskListActivity extends AstridActivity implements MainMenuListener
             break;
         }
     }
+
+    private class TagDeletedReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String deletedTag = intent.getStringExtra(TagViewFragment.EXTRA_TAG_NAME);
+            String currentlyShowing = getIntent().getStringExtra(TagViewFragment.EXTRA_TAG_NAME);
+            if (currentlyShowing != null && currentlyShowing.equals(deletedTag)) {
+                FilterListFragment fl = getFilterListFragment();
+                if (fl != null) {
+                    fl.switchToActiveTasks();
+                }
+            }
+        }
+
+    }
 }