Implements keyboard events for RenderViewTest.This change implements a function RenderViewTest::SendKeyEvent() that sends a keyboard event to a RenderView object.To emulate not only US keyboards but also non-US keyboards, this change adds a new class "MockKeyboard", which implements a mapping function from a triple <keyboard type, key code, modifiers> to a Unicode character so that engineers can write RenderViewTest cases without taking care of keyboard types.As samples for this new function, I updated my test RenderViewTest.OnHandleKeyboardEvent and added another test RenderViewTest.InsertCharacters.I wish this class help engineers write more RenderViewTest cases.

Review URL: http://codereview.chromium.org/92122

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15748 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 47 insertions, 0 deletions

diff --git a/chrome/renderer/mock_keyboard.cc b/chrome/renderer/mock_keyboard.cc
new file mode 100644
index 0000000..b18f3f6
--- /dev/null
+++ b/chrome/renderer/mock_keyboard.cc
@@ -0,0 +1,47 @@
+// Copyright (c) 2009 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 "chrome/renderer/mock_keyboard.h"
+
+#include "base/logging.h"
+
+MockKeyboard::MockKeyboard()
+    : keyboard_layout_(LAYOUT_NULL),
+      keyboard_modifiers_(INVALID) {
+}
+
+MockKeyboard::~MockKeyboard() {
+}
+
+int MockKeyboard::GetCharacters(Layout layout,
+                                int key_code,
+                                Modifiers modifiers,
+                                std::wstring* output) {
+#if defined(OS_WIN)
+  CHECK(output);
+  // Change the keyboard layout only when we have to because it takes a lot of
+  // time to load a keyboard-layout driver.
+  // When we change the layout, we reset the modifier status to force updating
+  // the keyboard status.
+  if (layout != keyboard_layout_) {
+    if (!driver_.SetLayout(layout))
+      return -1;
+    keyboard_layout_ = layout;
+    keyboard_modifiers_ = INVALID;
+  }
+
+  // Update the keyboard states.
+  if (modifiers != keyboard_modifiers_) {
+    if (!driver_.SetModifiers(modifiers))
+      return -1;
+    keyboard_modifiers_ = modifiers;
+  }
+
+  // Retrieve Unicode characters associate with the key code.
+  return driver_.GetCharacters(key_code, output);
+#else
+  NOTIMPLEMENTED();
+  return -1;
+#endif
+}