Filter key list by certified keys

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java

@@ -49,9 +49,11 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.AbsListView.MultiChoiceModeListener;
 import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.ListView;
+import android.widget.Spinner;
 import android.widget.TextView;
 
 import org.sufficientlysecure.keychain.Constants;
@@ -68,8 +70,10 @@ import org.sufficientlysecure.keychain.ui.util.Highlighter;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.ui.util.Notify;
 
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.List;
 
 import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
 import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
@@ -85,10 +89,13 @@ public class KeyListFragment extends LoaderFragment
     private KeyListAdapter mAdapter;
     private StickyListHeadersListView mStickyList;
     private ListAwareSwipeRefreshLayout mSwipeRefreshLayout;
+    private Spinner mFilterSpinner;
 
     // saves the mode object for multiselect, needed for reset at some point
     private ActionMode mActionMode = null;
 
+    private boolean mShowAllKeys = false;
+
     private String mQuery;
     private SearchView mSearchView;
     // empty list layout
@@ -213,6 +220,42 @@ public class KeyListFragment extends LoaderFragment
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
+        mFilterSpinner = (Spinner) getActivity().findViewById(R.id.key_list_filter_spinner);
+        List<String> list = new ArrayList<String>();
+        list.add(getString(R.string.key_list_filter_show_certified));
+        list.add(getString(R.string.key_list_filter_show_all));
+
+        ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>
+                (getActivity(), android.R.layout.simple_spinner_item, list);
+
+        dataAdapter.setDropDownViewResource
+                (android.R.layout.simple_spinner_dropdown_item);
+
+        mFilterSpinner.setAdapter(dataAdapter);
+
+        mFilterSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                switch (position) {
+                    case 0: {
+                        mShowAllKeys = false;
+                        getLoaderManager().restartLoader(0, null, KeyListFragment.this);
+                        break;
+                    }
+                    case 1: {
+                        mShowAllKeys = true;
+                        getLoaderManager().restartLoader(0, null, KeyListFragment.this);
+                        break;
+                    }
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+
+            }
+        });
+
         mStickyList.setOnItemClickListener(this);
         mStickyList.setAreHeadersSticky(true);
         mStickyList.setDrawingListUnderStickyHeader(false);
@@ -355,6 +398,14 @@ public class KeyListFragment extends LoaderFragment
                 whereArgs[i] = "%" + words[i] + "%";
             }
         }
+        if (!mShowAllKeys) {
+            if (where == null) {
+                where = "";
+            } else {
+                where += " AND ";
+            }
+            where += KeyRings.VERIFIED + " != 0";
+        }
 
         // Now create and return a CursorLoader that will take care of
         // creating a Cursor for the data being displayed.

OpenKeychain/src/main/res/layout/key_list_content.xml

@@ -6,17 +6,42 @@
 
     <include layout="@layout/notify_area" />
 
-    <FrameLayout
+    <LinearLayout
         android:id="@+id/content_frame"
         android:layout_marginLeft="@dimen/drawer_content_padding"
+        android:orientation="vertical"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
+        <LinearLayout
+            android:orientation="vertical"
+            android:background="@color/holo_gray_bright"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <Spinner
+                android:id="@+id/key_list_filter_spinner"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="12dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginTop="4dp"
+                android:layout_marginBottom="4dp" />
+
+            <View
+                android:layout_width="match_parent"
+                android:layout_height="1dip"
+                android:background="?android:attr/listDivider" />
+
+        </LinearLayout>
+
         <fragment
             android:id="@+id/key_list_fragment"
             android:name="org.sufficientlysecure.keychain.ui.KeyListFragment"
             android:layout_width="match_parent"
-            android:layout_height="match_parent" />
+            android:layout_height="0dp"
-    </FrameLayout>
+            android:layout_weight="1" />
+
+    </LinearLayout>
 
 </LinearLayout>

OpenKeychain/src/main/res/layout/view_key_main_fragment.xml

@@ -147,7 +147,6 @@
             android:id="@+id/view_key_action_update"
             android:paddingLeft="8dp"
             android:paddingRight="8dp"
-            android:layout_marginBottom="8dp"
             android:textAppearance="?android:attr/textAppearanceMedium"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"

OpenKeychain/src/main/res/values/strings.xml

@@ -489,6 +489,8 @@
     <string name="key_list_empty_text3">"or"</string>
     <string name="key_list_empty_button_create">"creating your own key"</string>
     <string name="key_list_empty_button_import">"importing an existing key."</string>
+    <string name="key_list_filter_show_all">"Show all keys"</string>
+    <string name="key_list_filter_show_certified">"Show certified keys only"</string>
 
     <!-- Key view -->
     <string name="key_view_action_edit">"Edit key"</string>