Android: handle ImEnterKeyType flag

Replace KEYCODE_ENTER to KEYCODE_TAB if IME_ACTION_NEXT or
IME_ACTION_PREVIOUS flag is set.

Before this change any of imKeyEntryType [1] was handled as default
return key. After the fix, event is changed to Tab or Backtab (if any of
mentioned flag is set)

[1] https://doc.qt.io/qt-5/qt.html#EnterKeyType-enum

Fixes: QTBUG-61652
Pick-to: 5.15
Change-Id: Ia27aa308fdae75bc17d1e892d17048c5afa3e2cb
Reviewed-by: Rami Potinkara <rami.potinkara@qt.io>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>

src/android/jar/src/org/qtproject/qt/android/QtActivityDelegate.java

@@ -375,8 +375,12 @@ public class QtActivityDelegate
                 inputType |= android.text.InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS;
             }
 
-            if ((inputHints & ImhMultiLine) != 0)
+            if ((inputHints & ImhMultiLine) != 0) {
                 inputType |= android.text.InputType.TYPE_TEXT_FLAG_MULTI_LINE;
+                // Clear imeOptions for Multi-Line Type
+                // User should be able to insert new line in such case
+                imeOptions = android.view.inputmethod.EditorInfo.IME_ACTION_DONE;
+            }
             if ((inputHints & (ImhNoPredictiveText | ImhSensitiveData | ImhHiddenText)) != 0)
                 inputType |= android.text.InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS;
 

src/android/jar/src/org/qtproject/qt/android/QtInputConnection.java

@@ -257,6 +257,32 @@ public class QtInputConnection extends BaseInputConnection
         // If the sendKeyEvent was invoked, it means that the button not related with composingText was used
         // In such case composing text (if it exists) should be finished immediately
         finishComposingText();
+        if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER && m_view != null) {
+            KeyEvent fakeEvent;
+            switch (m_view.m_imeOptions) {
+                case android.view.inputmethod.EditorInfo.IME_ACTION_NEXT:
+                    fakeEvent = new KeyEvent(event.getDownTime(),
+                                            event.getEventTime(),
+                                            event.getAction(),
+                                            KeyEvent.KEYCODE_TAB,
+                                            event.getRepeatCount(),
+                                            event.getMetaState());
+                    return super.sendKeyEvent(fakeEvent);
+
+               case android.view.inputmethod.EditorInfo.IME_ACTION_PREVIOUS:
+                    fakeEvent = new KeyEvent(event.getDownTime(),
+                                            event.getEventTime(),
+                                            event.getAction(),
+                                            KeyEvent.KEYCODE_TAB,
+                                            event.getRepeatCount(),
+                                            KeyEvent.META_SHIFT_ON);
+                    return super.sendKeyEvent(fakeEvent);
+
+                default:
+                   break;
+            }
+        }
+
         return super.sendKeyEvent(event);
     }