Change InputMethodController#setSelectionOffsets() to use NotUserTriggered parameter

third_party/WebKit/Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 324 matching lines @@
     //    !hasComposition() && !text.isEmpty().
     //    Sending a compositionupdate event at this time ensures that at least one
     //    compositionupdate event is dispatched.
     // 2. Updating the existing composition node.
     //    Send a compositionupdate event when this function updates the existing composition
     //    node, i.e. hasComposition() && !text.isEmpty().
     // 3. Canceling the ongoing composition.
     //    Send a compositionend event when function deletes the existing composition node, i.e.
     //    !hasComposition() && test.isEmpty().
     if (text.isEmpty()) {
         if (hasComposition()) {

[yabinh, 2016/08/03 06:27:01]

If there is composing text, it will be confirmed.

             confirmComposition(emptyString());
         } else {
             // It's weird to call |setComposition()| with empty text outside composition, however some IME
             // (e.g. Japanese IBus-Anthy) did this, so we simply delete selection without sending extra events.
             TypingCommand::deleteSelection(*frame().document(), TypingCommand::PreventSpellChecking);
         }
 

[yabinh, 2016/08/03 06:27:00]

We don't need to change here, because there is no composing text here.

         setEditableSelectionOffsets(selectedRange);
         return;
     }
 
     // We should send a 'compositionstart' event only when the given text is not empty because this
     // function doesn't create a composition node when the text is empty.
     if (!hasComposition()) {
         target->dispatchEvent(CompositionEvent::create(EventTypeNames::compositionstart, frame().domWindow(), frame().selectedText()));
         if (!frame().document())
             return;
@@ skipping 31 matching lines @@
     m_isDirty = true;
     m_hasComposition = true;
     if (!m_compositionRange)
         m_compositionRange = Range::create(baseNode->document());
     m_compositionRange->setStart(baseNode, baseOffset);
     m_compositionRange->setEnd(baseNode, extentOffset);
 
     if (baseNode->layoutObject())
         baseNode->layoutObject()->setShouldDoFullPaintInvalidation();
 
-    setEditableSelectionOffsets(selectedRange);
+    Element* rootEditableElement = frame().selection().rootEditableElement();
+    if (!rootEditableElement)
+        return;
+    const EphemeralRange& range = selectedRange.createRange(*rootEditableElement);
+    frame().selection().setSelectedRange(range, TextAffinity::Downstream, SelectionDirectionalMode::NonDirectional, NotUserTriggered);
 
     if (underlines.isEmpty()) {
         frame().document()->markers().addCompositionMarker(m_compositionRange->startPosition(), m_compositionRange->endPosition(), Color::black, false, LayoutTheme::theme().platformDefaultCompositionBackgroundColor());
         return;
     }
     for (const auto& underline : underlines) {
         unsigned underlineStart = baseOffset + underline.startOffset;
         unsigned underlineEnd = baseOffset + underline.endOffset;
         EphemeralRange ephemeralLineRange = EphemeralRange(Position(baseNode, underlineStart), Position(baseNode, underlineEnd));
         if (ephemeralLineRange.isNull())
@@ skipping 77 matching lines @@
     if (!rootEditableElement)
         return false;
 
     // TODO(dglazkov): The use of updateStyleAndLayoutIgnorePendingStylesheets needs to be audited.
     // see http://crbug.com/590369 for more details.
     rootEditableElement->document().updateStyleAndLayoutIgnorePendingStylesheets();
 
     const EphemeralRange range = selectionOffsets.createRange(*rootEditableElement);
     if (range.isNull())
         return false;
 

[yabinh, 2016/08/03 06:27:00]

It uses |CloseTyping| here.

     return frame().selection().setSelectedRange(range, VP_DEFAULT_AFFINITY, SelectionDirectionalMode::NonDirectional, FrameSelection::CloseTyping);
 }
 
 bool InputMethodController::setEditableSelectionOffsets(const PlainTextRange& selectionOffsets)
 {
     if (!editor().canEdit())
         return false;
     return setSelectionOffsets(selectionOffsets);
 }
 
@@ skipping 61 matching lines @@
     TypingCommand::deleteSelection(*frame().document());
 }
 
 DEFINE_TRACE(InputMethodController)
 {
     visitor->trace(m_frame);
     visitor->trace(m_compositionRange);
 }
 
 } // namespace blink