Swap the Enter and Action keys when needed

When IME_FLAG_NO_ENTER_ACTION is set.

srcs/juloo.keyboard2/Config.java

@@ -36,6 +36,7 @@ final class Config
   public int key_flags_to_remove;
   public String actionLabel; // Might be 'null'
   public int actionId; // Meaningful only when 'actionLabel' isn't 'null'
+  public boolean swapEnterActionKey; // Swap the "enter" and "action" keys
 
   public final IKeyEventHandler handler;
 
@@ -66,6 +67,7 @@ final class Config
     key_flags_to_remove = 0;
     actionLabel = null;
     actionId = 0;
+    swapEnterActionKey = false;
     handler = h;
   }
 

srcs/juloo.keyboard2/Keyboard2.java

@@ -162,12 +162,15 @@ public class Keyboard2 extends InputMethodService
     {
       _config.actionLabel = info.actionLabel.toString();
       _config.actionId = info.actionId;
+      _config.swapEnterActionKey = false;
     }
     else
     {
       int action = info.imeOptions & EditorInfo.IME_MASK_ACTION;
       _config.actionLabel = actionLabel_of_imeAction(action); // Might be null
       _config.actionId = action;
+      _config.swapEnterActionKey =
+        (info.imeOptions & EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0;
     }
   }
 

srcs/juloo.keyboard2/Keyboard2View.java

@@ -9,6 +9,7 @@ import android.os.Message;
 import android.os.Vibrator;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
+import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
 import android.widget.PopupWindow;
@@ -68,10 +69,18 @@ public class Keyboard2View extends View
     // Replace the action key to show the right label.
     KeyValue action_key = null; 
     if (_config.actionLabel != null)
+    {
       action_key = new KeyValue(_config.actionLabel, _config.actionLabel,
           KeyValue.CHAR_NONE, KeyValue.EVENT_ACTION, KeyValue.FLAG_NOREPEAT);
-    kw = kw.replaceKeys(
-        new KeyboardData.ReplaceKeysByEvent(KeyValue.EVENT_ACTION, action_key));
+    }
+    if (_config.swapEnterActionKey && action_key != null)
+      kw = kw.replaceKeys(
+          new KeyboardData.ReplaceKeysByEvent2(KeyEvent.KEYCODE_ENTER,
+            action_key, KeyValue.EVENT_ACTION,
+            KeyValue.getKeyByName("enter")));
+    else
+      kw = kw.replaceKeys(
+          new KeyboardData.ReplaceKeysByEvent(KeyValue.EVENT_ACTION, action_key));
     _keyboard = kw;
     reset();
   }

srcs/juloo.keyboard2/KeyboardData.java

@@ -201,4 +201,30 @@ class KeyboardData
       return (k != null && k.eventCode == _eventCode) ? _replacement : k;
     }
   }
+
+  /* Replace two keys at the same time. Used for swaping keys. */
+  public static class ReplaceKeysByEvent2 implements MapKeys
+  {
+    private final int _e1;
+    private final KeyValue _r1;
+    private final int _e2;
+    private final KeyValue _r2;
+
+    public ReplaceKeysByEvent2(int e1, KeyValue r1, int e2, KeyValue r2)
+    {
+      _e1 = e1;
+      _r1 = r1;
+      _e2 = e2;
+      _r2 = r2;
+    }
+
+    public KeyValue map(KeyValue k)
+    {
+      if (k == null)
+        return null;
+      if (k.eventCode == _e1) return _r1;
+      if (k.eventCode == _e2) return _r2;
+      return k;
+    }
+  }
 }