From 8b57331e71b02731be780bd5180ed5506c338792 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Thu, 23 May 2019 11:05:43 -0700
Subject: [PATCH] Fixed hiding the Android virtual keyboard when the return key
 is pressed

---
 .../main/java/org/libsdl/app/SDLActivity.java    | 16 ++++++++--------
 src/core/android/SDL_android.c                   | 15 ++++++++++++++-
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java b/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
index 17697daac..41279a245 100644
--- a/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
+++ b/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
@@ -762,6 +762,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
     public static native void onNativeResize();
     public static native void onNativeKeyDown(int keycode);
     public static native void onNativeKeyUp(int keycode);
+    public static native boolean onNativeSoftReturnKey();
     public static native void onNativeKeyboardFocusLost();
     public static native void onNativeMouse(int button, int action, float x, float y, boolean relative);
     public static native void onNativeTouch(int touchDevId, int pointerFingerId,
@@ -2087,14 +2088,8 @@ class SDLInputConnection extends BaseInputConnection {
          */
 
         if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
-            String imeHide = SDLActivity.nativeGetHint("SDL_RETURN_KEY_HIDES_IME");
-            if ((imeHide != null) && imeHide.equals("1")) {
-                Context c = SDL.getContext();
-                if (c instanceof SDLActivity) {
-                    SDLActivity activity = (SDLActivity)c;
-                    activity.sendCommand(SDLActivity.COMMAND_TEXTEDIT_HIDE, null);
-                    return true;
-                }
+            if (SDLActivity.onNativeSoftReturnKey()) {
+                return true;
             }
         }
 
@@ -2107,6 +2102,11 @@ class SDLInputConnection extends BaseInputConnection {
 
         for (int i = 0; i < text.length(); i++) {
             char c = text.charAt(i);
+            if (c == '\n') {
+                if (SDLActivity.onNativeSoftReturnKey()) {
+                    return true;
+                }
+            }
             nativeGenerateScancodeForUnichar(c);
         }
 
diff --git a/src/core/android/SDL_android.c b/src/core/android/SDL_android.c
index 2e7240d29..2793ec70a 100644
--- a/src/core/android/SDL_android.c
+++ b/src/core/android/SDL_android.c
@@ -97,6 +97,9 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyUp)(
         JNIEnv *env, jclass jcls,
         jint keycode);
 
+JNIEXPORT jboolean JNICALL SDL_JAVA_INTERFACE(onNativeSoftReturnKey)(
+        JNIEnv *env, jclass jcls);
+
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyboardFocusLost)(
         JNIEnv *env, jclass jcls);
 
@@ -920,6 +923,17 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyUp)(
     Android_OnKeyUp(keycode);
 }
 
+/* Virtual keyboard return key might stop text input */
+JNIEXPORT jboolean JNICALL SDL_JAVA_INTERFACE(onNativeSoftReturnKey)(
+                                    JNIEnv *env, jclass jcls)
+{
+    if (SDL_GetHintBoolean(SDL_HINT_RETURN_KEY_HIDES_IME, SDL_FALSE)) {
+        SDL_StopTextInput();
+        return JNI_TRUE;
+    }
+    return JNI_FALSE;
+}
+
 /* Keyboard Focus Lost */
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyboardFocusLost)(
                                     JNIEnv *env, jclass jcls)
@@ -1127,7 +1141,6 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeGenerateScancod
     }
 }
 
-
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeSetComposingText)(
                                     JNIEnv *env, jclass cls,
                                     jstring text, jint newCursorPosition)