Fixes issue 1711

Owner: fiouzy
Don't display message subject in notification bar when keyguard is active (system locked)

res/values/strings.xml

@@ -326,6 +326,9 @@ Welcome to K-9 Mail setup.  K-9 is an open source mail client for Android origin
     <string name="global_settings_confirm_action_spam">Spam</string>
     <string name="global_settings_confirm_action_send">Send</string>
 
+    <string name="global_settings_privacy_mode_title">Privacy mode</string>
+    <string name="global_settings_privacy_mode_summary">Don\'t display message subject in notification bar when system is locked</string>
+
     <string name="account_setup_basics_title">Set up a new account</string>
     <string name="account_setup_basics_instructions">Enter this account\'s email address:</string>
     <string name="account_setup_basics_instructions2_fmt">(You may add <xliff:g id="number_accounts">%d</xliff:g> more accounts.)</string>

res/xml/global_preferences.xml

@@ -79,6 +79,11 @@
             android:negativeButtonText="@android:string/cancel"
         />
 
+        <CheckBoxPreference
+            android:key="privacy_mode"
+            android:title="@string/global_settings_privacy_mode_title"
+            android:summary="@string/global_settings_privacy_mode_summary"/>
+
     </PreferenceCategory>
 
     <PreferenceCategory android:title="@string/accountlist_preferences" android:key="accountlist_preferences">

src/com/fsck/k9/K9.java

@@ -107,6 +107,7 @@ public class K9 extends Application
     private static boolean mAnimations = true;
 
     private static boolean mConfirmDelete = false;
+    private static boolean mKeyguardPrivacy = false;
 
     private static boolean mMessageListStars = true;
     private static boolean mMessageListCheckboxes = false;
@@ -356,6 +357,8 @@ public class K9 extends Application
 
         editor.putBoolean("confirmDelete", mConfirmDelete);
 
+        editor.putBoolean("keyguardPrivacy", mKeyguardPrivacy);
+
         fontSizes.save(editor);
     }
 
@@ -389,6 +392,8 @@ public class K9 extends Application
 
         mConfirmDelete = sprefs.getBoolean("confirmDelete", false);
 
+        mKeyguardPrivacy = sprefs.getBoolean("keyguardPrivacy", false);
+
         fontSizes.load(sprefs);
 
         try
@@ -699,6 +704,19 @@ public class K9 extends Application
         mConfirmDelete = confirm;
     }
 
+    /**
+     * @return Whether privacy rules should be applied when system is locked
+     */
+    public static boolean keyguardPrivacy()
+    {
+        return mKeyguardPrivacy;
+    }
+
+    public static void setKeyguardPrivacy(final boolean state)
+    {
+        mKeyguardPrivacy = state;
+    }
+
     /**
      * Check if this system contains a buggy Gallery 3D package.
      *

src/com/fsck/k9/activity/setup/Prefs.java

@@ -58,6 +58,8 @@ public class Prefs extends K9PreferenceActivity
 
     private static final String PREFERENCE_CONFIRM_ACTIONS = "confirm_actions";
 
+    private static final String PREFERENCE_PRIVACY_MODE = "privacy_mode";
+
     private ListPreference mLanguage;
     private ListPreference mTheme;
     private ListPreference mDateFormat;
@@ -82,6 +84,8 @@ public class Prefs extends K9PreferenceActivity
 
     private CheckboxListPreference mConfirmActions;
 
+    private CheckBoxPreference mPrivacyMode;
+
     private String initBackgroundOps;
 
 
@@ -243,6 +247,9 @@ public class Prefs extends K9PreferenceActivity
         mConfirmActions = (CheckboxListPreference) findPreference(PREFERENCE_CONFIRM_ACTIONS);
         mConfirmActions.setItems(new CharSequence[] {getString(R.string.global_settings_confirm_action_delete)});
         mConfirmActions.setCheckedItems(new boolean[] {K9.confirmDelete()});
+
+        mPrivacyMode = (CheckBoxPreference) findPreference(PREFERENCE_PRIVACY_MODE);
+        mPrivacyMode.setChecked(K9.keyguardPrivacy());
     }
 
     @Override
@@ -284,6 +291,8 @@ public class Prefs extends K9PreferenceActivity
 
         K9.setConfirmDelete(mConfirmActions.getCheckedItems()[0]);
 
+        K9.setKeyguardPrivacy(mPrivacyMode.isChecked());
+
         Editor editor = preferences.edit();
         K9.save(editor);
         DateFormatter.setDateFormat(editor, mDateFormat.getValue());

src/com/fsck/k9/controller/MessagingController.java

@@ -22,6 +22,7 @@ import java.util.concurrent.PriorityBlockingQueue;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import android.app.Application;
+import android.app.KeyguardManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ -4565,6 +4566,9 @@ public class MessagingController implements Runnable
     {
         // If we have a message, set the notification to "<From>: <Subject>"
         StringBuffer messageNotice = new StringBuffer();
+        final KeyguardManager keyguardService = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
+        if (!K9.keyguardPrivacy() || !keyguardService.inKeyguardRestrictedInputMode())
+        {
             try
             {
                 if (message != null && message.getFrom() != null)
@@ -4612,6 +4616,7 @@ public class MessagingController implements Runnable
             {
                 Log.e(K9.LOG_TAG, "Unable to get message information for notification.", e);
             }
+        }
 
 
         // If we could not set a per-message notification, revert to a default message