Add an accessibility API for events raised outside of the web content.

chrome/browser/extensions/extension_accessibility_api_constants.cc

+// Copyright (c) 2010 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/browser/extensions/extension_accessibility_api_constants.h"
+
+namespace extension_accessibility_api_constants {
+
+// String keys for AccessibilityObject properties.
+const wchar_t kTypeKey[] = L"type";
+const wchar_t kNameKey[] = L"name";
+const wchar_t kDetailsKey[] = L"details";
+const wchar_t kValueKey[] = L"details.value";
+const wchar_t kPasswordKey[] = L"details.isPassword";
+const wchar_t kItemCountKey[] = L"details.itemCount";
+const wchar_t kItemIndexKey[] = L"details.itemIndex";
+const wchar_t kSelectionStartKey[] = L"details.selectionStart";
+const wchar_t kSelectionEndKey[] = L"details.selectionEnd";
+const wchar_t kCheckedKey[] = L"details.isChecked";
+
+// Events.
+const char kOnWindowOpened[] = "experimental.accessibility.onWindowOpened";
+const char kOnWindowClosed[] = "experimental.accessibility.onWindowClosed";
+const char kOnControlFocused[] = "experimental.accessibility.onControlFocused";
+const char kOnControlAction[] = "experimental.accessibility.onControlAction";
+const char kOnTextChanged[] = "experimental.accessibility.onTextChanged";
+
+// Types of controls that can receive accessibility events.
+extern const char kTypeButton[] = "button";
+extern const char kTypeCheckbox[] = "checkbox";
+extern const char kTypeComboBox[] = "combobox";
+extern const char kTypeLink[] = "link";
+extern const char kTypeRadioButton[] = "radiobutton";
+extern const char kTypeTab[] = "tab";
+extern const char kTypeTextBox[] = "textbox";
+extern const char kTypeWindow[] = "window";
+
+}  // namespace extension_accessibility_api_constants