content/test/mock_keyboard.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/test/mock_keyboard.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace content {
  10
  11 MockKeyboard::MockKeyboard()
  12     : keyboard_layout_(LAYOUT_NULL),
  13       keyboard_modifiers_(INVALID) {
  14 }
  15
  16 MockKeyboard::~MockKeyboard() {
  17 }
  18
  19 int MockKeyboard::GetCharacters(Layout layout,
  20                                 int key_code,
  21                                 Modifiers modifiers,
  22                                 std::wstring* output) {
  23 #if defined(OS_WIN)
  24   CHECK(output);
  25   // Change the keyboard layout only when we have to because it takes a lot of
  26   // time to load a keyboard-layout driver.
  27   // When we change the layout, we reset the modifier status to force updating
  28   // the keyboard status.
  29   if (layout != keyboard_layout_) {
  30     if (!driver_.SetLayout(layout))
  31       return -1;
  32     keyboard_layout_ = layout;
  33     keyboard_modifiers_ = INVALID;
  34   }
  35
  36   // Update the keyboard states.
  37   if (modifiers != keyboard_modifiers_) {
  38     if (!driver_.SetModifiers(modifiers))
  39       return -1;
  40     keyboard_modifiers_ = modifiers;
  41   }
  42
  43   // Retrieve Unicode characters associate with the key code.
  44   return driver_.GetCharacters(key_code, output);
  45 #else
  46   NOTIMPLEMENTED();
  47   return -1;
  48 #endif
  49 }
  50
  51 }  // namespace content