IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/base/ime/input_method.cc

Index: ui/base/ime/input_method.cc
diff --git a/ui/base/ime/input_method.cc b/ui/base/ime/input_method.cc
new file mode 100644
index 0000000000000000000000000000000000000000..332f44437142dea836f59124f703941c5f5f4741
--- /dev/null
+++ b/ui/base/ime/input_method.cc
@@ -0,0 +1,53 @@
+// Copyright (c) 2011 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/base/ime/input_method.h"
+
+namespace ui {
+
+InputMethod::~InputMethod() {
+}
+
+// We emulate Windows' WM_KEYDOWN and WM_CHAR messages.  WM_CHAR events are only
+// generated for certain keys; see
+// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646268.aspx.
+bool InputMethod::ShouldSendCharEventForKeyboardCode(KeyboardCode keycode) {
+  if ((keycode >= VKEY_0 && keycode <= VKEY_9) ||
+      (keycode >= VKEY_A && keycode <= VKEY_Z) ||
+      (keycode >= VKEY_NUMPAD0 && keycode <= VKEY_NUMPAD9)) {
+    return true;
+  }
+
+  switch (keycode) {
+    case VKEY_BACK:
+    case VKEY_RETURN:
+    case VKEY_ESCAPE:
+    case VKEY_SPACE:
+    case VKEY_TAB:
+    // In addition to the keys listed at MSDN, we include other
+    // graphic-character and numpad keys.
+    case VKEY_MULTIPLY:
+    case VKEY_ADD:
+    case VKEY_SUBTRACT:
+    case VKEY_DECIMAL:
+    case VKEY_DIVIDE:
+    case VKEY_OEM_1:
+    case VKEY_OEM_2:
+    case VKEY_OEM_3:
+    case VKEY_OEM_4:
+    case VKEY_OEM_5:
+    case VKEY_OEM_6:
+    case VKEY_OEM_7:
+    case VKEY_OEM_102:
+    case VKEY_OEM_PLUS:
+    case VKEY_OEM_COMMA:
+    case VKEY_OEM_MINUS:
+    case VKEY_OEM_PERIOD:
+      return true;
+    default:
+      return false;
+  }
+}
+
+}  // namespace ui