Import TestRunner library into chromium.

content/test/layout_tests/runner/AccessibilityController.cpp

+// Copyright 2013 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.
+
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "content/test/layout_tests/runner/AccessibilityController.h"
+
+#include "content/public/test/layout_tests/WebTestDelegate.h"
+#include "third_party/WebKit/public/platform/WebCString.h"
+#include "third_party/WebKit/public/web/WebAXObject.h"
+#include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebFrame.h"
+#include "third_party/WebKit/public/web/WebNode.h"
+#include "third_party/WebKit/public/web/WebView.h"
+
+using namespace blink;
+
+namespace WebTestRunner {
+
+AccessibilityController::AccessibilityController()
+    : m_logAccessibilityEvents(false)
+{
+
+    bindMethod("logAccessibilityEvents", &AccessibilityController::logAccessibilityEventsCallback);
+    bindMethod("addNotificationListener", &AccessibilityController::addNotificationListenerCallback);
+    bindMethod("removeNotificationListener", &AccessibilityController::removeNotificationListenerCallback);
+
+    bindProperty("focusedElement", &AccessibilityController::focusedElementGetterCallback);
+    bindProperty("rootElement", &AccessibilityController::rootElementGetterCallback);
+
+    bindMethod("accessibleElementById", &AccessibilityController::accessibleElementByIdGetterCallback);
+
+    bindFallbackMethod(&AccessibilityController::fallbackCallback);
+}
+
+void AccessibilityController::bindToJavascript(WebFrame* frame, const WebString& classname)
+{
+    WebAXObject::enableAccessibility();
+    WebAXObject::enableInlineTextBoxAccessibility();
+    CppBoundClass::bindToJavascript(frame, classname);
+}
+
+void AccessibilityController::reset()
+{
+    m_rootElement = WebAXObject();
+    m_focusedElement = WebAXObject();
+    m_elements.clear();
+    m_notificationCallbacks.clear();
+
+    m_logAccessibilityEvents = false;
+}
+
+void AccessibilityController::setFocusedElement(const WebAXObject& focusedElement)
+{
+    m_focusedElement = focusedElement;
+}
+
+WebAXObjectProxy* AccessibilityController::getFocusedElement()
+{
+    if (m_focusedElement.isNull())
+        m_focusedElement = m_webView->accessibilityObject();
+    return m_elements.getOrCreate(m_focusedElement);
+}
+
+WebAXObjectProxy* AccessibilityController::getRootElement()
+{
+    if (m_rootElement.isNull())
+        m_rootElement = m_webView->accessibilityObject();
+    return m_elements.createRoot(m_rootElement);
+}
+
+WebAXObjectProxy* AccessibilityController::findAccessibleElementByIdRecursive(const WebAXObject& obj, const WebString& id)
+{
+    if (obj.isNull() || obj.isDetached())
+        return 0;
+
+    WebNode node = obj.node();
+    if (!node.isNull() && node.isElementNode()) {
+        WebElement element = node.to<WebElement>();
+        element.getAttribute("id");
+        if (element.getAttribute("id") == id)
+            return m_elements.getOrCreate(obj);
+    }
+
+    unsigned childCount = obj.childCount();
+    for (unsigned i = 0; i < childCount; i++) {
+        if (WebAXObjectProxy* result = findAccessibleElementByIdRecursive(obj.childAt(i), id))
+            return result;
+    }
+
+    return 0;
+}
+
+WebAXObjectProxy* AccessibilityController::getAccessibleElementById(const std::string& id)
+{
+    if (m_rootElement.isNull())
+        m_rootElement = m_webView->accessibilityObject();
+
+    if (!m_rootElement.updateBackingStoreAndCheckValidity())
+        return 0;
+
+    return findAccessibleElementByIdRecursive(m_rootElement, WebString::fromUTF8(id.c_str()));
+}
+
+bool AccessibilityController::shouldLogAccessibilityEvents()
+{
+    return m_logAccessibilityEvents;
+}
+
+void AccessibilityController::notificationReceived(const blink::WebAXObject& target, const char* notificationName)
+{
+    // Call notification listeners on the element.
+    WebAXObjectProxy* element = m_elements.getOrCreate(target);
+    element->notificationReceived(notificationName);
+
+    // Call global notification listeners.
+    size_t callbackCount = m_notificationCallbacks.size();
+    for (size_t i = 0; i < callbackCount; i++) {
+        CppVariant arguments[2];
+        arguments[0].set(*element->getAsCppVariant());
+        arguments[1].set(notificationName);
+        CppVariant invokeResult;
+        m_notificationCallbacks[i].invokeDefault(arguments, 2, invokeResult);
+    }
+}
+
+void AccessibilityController::logAccessibilityEventsCallback(const CppArgumentList&, CppVariant* result)
+{
+    m_logAccessibilityEvents = true;
+    result->setNull();
+}
+
+void AccessibilityController::addNotificationListenerCallback(const CppArgumentList& arguments, CppVariant* result)
+{
+    if (arguments.size() < 1 || !arguments[0].isObject()) {
+        result->setNull();
+        return;
+    }
+
+    m_notificationCallbacks.push_back(arguments[0]);
+    result->setNull();
+}
+
+void AccessibilityController::removeNotificationListenerCallback(const CppArgumentList&, CppVariant* result)
+{
+    // FIXME: Implement this.
+    result->setNull();
+}
+
+void AccessibilityController::focusedElementGetterCallback(CppVariant* result)
+{
+    result->set(*(getFocusedElement()->getAsCppVariant()));
+}
+
+void AccessibilityController::rootElementGetterCallback(CppVariant* result)
+{
+    result->set(*(getRootElement()->getAsCppVariant()));
+}
+
+void AccessibilityController::accessibleElementByIdGetterCallback(const CppArgumentList& arguments, CppVariant* result)
+{
+    result->setNull();
+
+    if (arguments.size() < 1 || !arguments[0].isString())
+        return;
+
+    std::string id = arguments[0].toString();
+    WebAXObjectProxy* foundElement = getAccessibleElementById(id);
+    if (!foundElement)
+        return;
+
+    result->set(*(foundElement->getAsCppVariant()));
+}
+
+void AccessibilityController::fallbackCallback(const CppArgumentList&, CppVariant* result)
+{
+    m_delegate->printMessage("CONSOLE MESSAGE: JavaScript ERROR: unknown method called on AccessibilityController\n");
+    result->setNull();
+}
+
+}