Make WebView keep keyboard when losing focus

content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser.input;
 
 import android.content.res.Configuration;
 import android.os.Build;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
@@ skipping 328 matching lines @@
         if (mNativeImeAdapterAndroid != 0) {
             nativeResetImeAdapter(mNativeImeAdapterAndroid);
         }
         if (nativeImeAdapter != 0) {
             nativeAttachImeAdapter(nativeImeAdapter);
         }
         mNativeImeAdapterAndroid = nativeImeAdapter;
         if (nativeImeAdapter != 0) {
             createInputConnectionFactory();
         }
+        resetAndHideKeyboard();

[yabinh, 2016/08/30 06:32:10]

For navigation.

     }
 
     /**
      * Show soft keyboard only if it is the current keyboard configuration.
      */
     private void showSoftKeyboard() {
         if (DEBUG_LOGS) Log.w(TAG, "showSoftKeyboard");
         mInputMethodManagerWrapper.showSoftInput(
                 mViewEmbedder.getAttachedView(), 0, mViewEmbedder.getNewShowKeyboardReceiver());
         if (mViewEmbedder.getAttachedView().getResources().getConfiguration().keyboard
@@ skipping 71 matching lines @@
             mInputConnectionFactory.onViewDetachedFromWindow();
         }
     }
 
     /**
      * Call this when view's focus has changed.
      * @param gainFocus True if we're gaining focus.
      */
     public void onViewFocusChanged(boolean gainFocus) {
         if (DEBUG_LOGS) Log.w(TAG, "onViewFocusChanged: gainFocus [%b]", gainFocus);
-        if (!gainFocus) resetAndHideKeyboard();
         if (mInputConnectionFactory != null) {
             mInputConnectionFactory.onViewFocusChanged(gainFocus);
         }
     }
 
     /**
      * Move cursor to the end of the current selection.
      */
     public void moveCursorToSelectionEnd() {
         if (DEBUG_LOGS) Log.w(TAG, "movecursorToEnd");
@@ skipping 324 matching lines @@
             int start, int end);
     private native void nativeSetComposingRegion(long nativeImeAdapterAndroid, int start, int end);
     private native void nativeDeleteSurroundingText(long nativeImeAdapterAndroid,
             int before, int after);
     private native void nativeResetImeAdapter(long nativeImeAdapterAndroid);
     private native boolean nativeRequestTextInputStateUpdate(long nativeImeAdapterAndroid);
     private native void nativeRequestCursorUpdate(long nativeImeAdapterAndroid,
             boolean immediateRequest, boolean monitorRequest);
     private native boolean nativeIsImeThreadEnabled(long nativeImeAdapterAndroid);
 }