[KeyboardEvent] Add embedder APIs to translate between Dom |key| enum and strings

ui/events/event.cc

 // Copyright (c) 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.
 
 #include "ui/events/event.h"
 
 #if defined(USE_X11)
 #include <X11/extensions/XInput2.h>
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
@@ skipping 790 matching lines @@
   KeyboardCode dummy_key_code;
 #if defined(OS_WIN)
 // Native Windows character events always have is_char_ == true,
 // so this is a synthetic or native keystroke event.
 // Therefore, perform only the fallback action.
 #elif defined(USE_X11)
   // When a control key is held, prefer ASCII characters to non ASCII
   // characters in order to use it for shortcut keys.  GetCharacterFromKeyCode
   // returns 'a' for VKEY_A even if the key is actually bound to 'à' in X11.
   // GetCharacterFromXEvent returns 'à' in that case.
-  if (!IsControlDown() && native_event()) {
-    character_ = GetCharacterFromXEvent(native_event());
-    // TODO(kpschoedel): set key_ field for X11.
-    return;
-  }
+  character_ = (IsControlDown() || !native_event()) ?
+      GetCharacterFromKeyCode(key_code_, flags()) :
+      GetCharacterFromXEvent(native_event());
+  GetMeaningFromKeyCode(key_code_, flags(), &key_, &character_);
 #elif defined(USE_OZONE)
   if (KeyboardLayoutEngineManager::GetKeyboardLayoutEngine()->Lookup(
           code, flags(), &key_, &character_, &dummy_key_code,
           &platform_keycode_)) {
     return;
   }
 #else
   if (native_event()) {
     DCHECK(EventTypeFromNative(native_event()) == ET_KEY_PRESSED ||
            EventTypeFromNative(native_event()) == ET_KEY_RELEASED);
@@ skipping 183 matching lines @@
                    gfx::PointF(x, y),
                    time_stamp,
                    flags | EF_FROM_TOUCH),
       details_(details) {
 }
 
 GestureEvent::~GestureEvent() {
 }
 
 }  // namespace ui