add ui support for stripping subkeys

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

@@ -420,6 +420,14 @@ public class EditKeyFragment extends LoaderFragment implements
                             mSaveKeyringParcel.mRevokeSubKeys.add(keyId);
                         }
                         break;
+                    case EditSubkeyDialogFragment.MESSAGE_STRIP:
+                        // toggle
+                        if (mSaveKeyringParcel.mStripSubKeys.contains(keyId)) {
+                            mSaveKeyringParcel.mStripSubKeys.remove(keyId);
+                        } else {
+                            mSaveKeyringParcel.mStripSubKeys.add(keyId);
+                        }
+                        break;
                 }
                 getLoaderManager().getLoader(LOADER_ID_SUBKEYS).forceLoad();
             }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAdapter.java

@@ -22,6 +22,7 @@ import android.content.res.ColorStateList;
 import android.database.Cursor;
 import android.graphics.Typeface;
 import android.support.v4.widget.CursorAdapter;
+import android.text.Html;
 import android.text.format.DateFormat;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -142,6 +143,8 @@ public class SubkeysAdapter extends CursorAdapter {
 
         long keyId = cursor.getLong(INDEX_KEY_ID);
         String keyIdStr = PgpKeyHelper.convertKeyIdToHex(keyId);
+
+        // may be set with additional "stripped" later on
         String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
                 context,
                 cursor.getInt(INDEX_ALGORITHM),
@@ -150,7 +153,10 @@ public class SubkeysAdapter extends CursorAdapter {
         );
 
         vKeyId.setText(keyIdStr);
-        // may be set with additional "stripped" later on
+
+        if (mSaveKeyringParcel != null && mSaveKeyringParcel.mStripSubKeys.contains(keyId)) {
+            algorithmStr += ", <b>" + context.getString(R.string.key_stripped) + "</b>";
+        } else {
             switch (SecretKeyType.fromNum(cursor.getInt(INDEX_HAS_SECRET))) {
                 case GNU_DUMMY:
                     algorithmStr += ", " + context.getString(R.string.key_stripped);
@@ -166,7 +172,8 @@ public class SubkeysAdapter extends CursorAdapter {
                     //algorithmStr += ", " + context.getString(R.string.key_unavailable);
                     break;
             }
-        vKeyDetails.setText(algorithmStr);
+        }
+        vKeyDetails.setText(Html.fromHtml(algorithmStr));
 
         boolean isMasterKey = cursor.getInt(INDEX_RANK) == 0;
         if (isMasterKey) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/EditSubkeyDialogFragment.java

@@ -34,6 +34,7 @@ public class EditSubkeyDialogFragment extends DialogFragment {
 
     public static final int MESSAGE_CHANGE_EXPIRY = 1;
     public static final int MESSAGE_REVOKE = 2;
+    public static final int MESSAGE_STRIP = 3;
 
     private Messenger mMessenger;
 
@@ -72,6 +73,9 @@ public class EditSubkeyDialogFragment extends DialogFragment {
                     case 1:
                         sendMessageToHandler(MESSAGE_REVOKE, null);
                         break;
+                    case 2:
+                        sendMessageToHandler(MESSAGE_STRIP, null);
+                        break;
                     default:
                         break;
                 }

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

@@ -293,6 +293,7 @@
     <string name="progress_modify_primaryuid">"changing primary user ID…"</string>
     <string name="progress_modify_subkeychange">"modifying subkeys…"</string>
     <string name="progress_modify_subkeyrevoke">"revoking subkeys…"</string>
+    <string name="progress_modify_subkeystrip">"stripping subkeys…"</string>
     <string name="progress_modify_subkeyadd">"adding subkeys…"</string>
     <string name="progress_modify_passphrase">"changing passphrase…"</string>
 
@@ -490,6 +491,7 @@
     <string-array name="edit_key_edit_subkey">
         <item>"Change Expiry"</item>
         <item>"Revoke Subkey"</item>
+        <item>"Strip Subkey"</item>
     </string-array>
     <string name="edit_key_new_subkey">"new"</string>
     <string name="edit_key_select_flag">"Please select at least one flag!"</string>
@@ -713,6 +715,7 @@
     <string name="msg_mf_subkey_new_id">"New subkey ID: %s"</string>
     <string name="msg_mf_error_past_expiry">"Expiry date cannot be in the past!"</string>
     <string name="msg_mf_subkey_revoke">"Revoking subkey %s"</string>
+    <string name="msg_mf_subkey_strip">"Stripping subkey %s"</string>
     <string name="msg_mf_success">"Keyring successfully modified"</string>
     <string name="msg_mf_uid_add">"Adding user id %s"</string>
     <string name="msg_mf_uid_primary">"Changing primary uid to %s"</string>