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| 1 // Copyright 2013 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/shell/renderer/test_runner/AccessibilityController.h" | |
| 6 | |
| 7 #include "content/shell/renderer/test_runner/WebTestDelegate.h" | |
| 8 #include "third_party/WebKit/public/platform/WebCString.h" | |
| 9 #include "third_party/WebKit/public/web/WebAXObject.h" | |
| 10 #include "third_party/WebKit/public/web/WebElement.h" | |
| 11 #include "third_party/WebKit/public/web/WebFrame.h" | |
| 12 #include "third_party/WebKit/public/web/WebNode.h" | |
| 13 #include "third_party/WebKit/public/web/WebView.h" | |
| 14 | |
| 15 using namespace blink; | |
| 16 | |
| 17 namespace WebTestRunner { | |
| 18 | |
| 19 AccessibilityController::AccessibilityController() | |
| 20 : m_logAccessibilityEvents(false) | |
| 21 { | |
| 22 | |
| 23 bindMethod("logAccessibilityEvents", &AccessibilityController::logAccessibil
ityEventsCallback); | |
| 24 bindMethod("addNotificationListener", &AccessibilityController::addNotificat
ionListenerCallback); | |
| 25 bindMethod("removeNotificationListener", &AccessibilityController::removeNot
ificationListenerCallback); | |
| 26 | |
| 27 bindProperty("focusedElement", &AccessibilityController::focusedElementGette
rCallback); | |
| 28 bindProperty("rootElement", &AccessibilityController::rootElementGetterCallb
ack); | |
| 29 | |
| 30 bindMethod("accessibleElementById", &AccessibilityController::accessibleElem
entByIdGetterCallback); | |
| 31 | |
| 32 bindFallbackMethod(&AccessibilityController::fallbackCallback); | |
| 33 } | |
| 34 | |
| 35 AccessibilityController::~AccessibilityController() | |
| 36 { | |
| 37 } | |
| 38 | |
| 39 void AccessibilityController::bindToJavascript(WebFrame* frame, const WebString&
classname) | |
| 40 { | |
| 41 WebAXObject::enableAccessibility(); | |
| 42 WebAXObject::enableInlineTextBoxAccessibility(); | |
| 43 CppBoundClass::bindToJavascript(frame, classname); | |
| 44 } | |
| 45 | |
| 46 void AccessibilityController::reset() | |
| 47 { | |
| 48 m_rootElement = WebAXObject(); | |
| 49 m_focusedElement = WebAXObject(); | |
| 50 m_elements.clear(); | |
| 51 m_notificationCallbacks.clear(); | |
| 52 | |
| 53 m_logAccessibilityEvents = false; | |
| 54 } | |
| 55 | |
| 56 void AccessibilityController::setFocusedElement(const WebAXObject& focusedElemen
t) | |
| 57 { | |
| 58 m_focusedElement = focusedElement; | |
| 59 } | |
| 60 | |
| 61 WebAXObjectProxy* AccessibilityController::getFocusedElement() | |
| 62 { | |
| 63 if (m_focusedElement.isNull()) | |
| 64 m_focusedElement = m_webView->accessibilityObject(); | |
| 65 return m_elements.getOrCreate(m_focusedElement); | |
| 66 } | |
| 67 | |
| 68 WebAXObjectProxy* AccessibilityController::getRootElement() | |
| 69 { | |
| 70 if (m_rootElement.isNull()) | |
| 71 m_rootElement = m_webView->accessibilityObject(); | |
| 72 return m_elements.createRoot(m_rootElement); | |
| 73 } | |
| 74 | |
| 75 WebAXObjectProxy* AccessibilityController::findAccessibleElementByIdRecursive(co
nst WebAXObject& obj, const WebString& id) | |
| 76 { | |
| 77 if (obj.isNull() || obj.isDetached()) | |
| 78 return 0; | |
| 79 | |
| 80 WebNode node = obj.node(); | |
| 81 if (!node.isNull() && node.isElementNode()) { | |
| 82 WebElement element = node.to<WebElement>(); | |
| 83 element.getAttribute("id"); | |
| 84 if (element.getAttribute("id") == id) | |
| 85 return m_elements.getOrCreate(obj); | |
| 86 } | |
| 87 | |
| 88 unsigned childCount = obj.childCount(); | |
| 89 for (unsigned i = 0; i < childCount; i++) { | |
| 90 if (WebAXObjectProxy* result = findAccessibleElementByIdRecursive(obj.ch
ildAt(i), id)) | |
| 91 return result; | |
| 92 } | |
| 93 | |
| 94 return 0; | |
| 95 } | |
| 96 | |
| 97 WebAXObjectProxy* AccessibilityController::getAccessibleElementById(const std::s
tring& id) | |
| 98 { | |
| 99 if (m_rootElement.isNull()) | |
| 100 m_rootElement = m_webView->accessibilityObject(); | |
| 101 | |
| 102 if (!m_rootElement.updateBackingStoreAndCheckValidity()) | |
| 103 return 0; | |
| 104 | |
| 105 return findAccessibleElementByIdRecursive(m_rootElement, WebString::fromUTF8
(id.c_str())); | |
| 106 } | |
| 107 | |
| 108 bool AccessibilityController::shouldLogAccessibilityEvents() | |
| 109 { | |
| 110 return m_logAccessibilityEvents; | |
| 111 } | |
| 112 | |
| 113 void AccessibilityController::notificationReceived(const blink::WebAXObject& tar
get, const char* notificationName) | |
| 114 { | |
| 115 // Call notification listeners on the element. | |
| 116 WebAXObjectProxy* element = m_elements.getOrCreate(target); | |
| 117 element->notificationReceived(notificationName); | |
| 118 | |
| 119 // Call global notification listeners. | |
| 120 size_t callbackCount = m_notificationCallbacks.size(); | |
| 121 for (size_t i = 0; i < callbackCount; i++) { | |
| 122 CppVariant arguments[2]; | |
| 123 arguments[0].set(*element->getAsCppVariant()); | |
| 124 arguments[1].set(notificationName); | |
| 125 CppVariant invokeResult; | |
| 126 m_notificationCallbacks[i].invokeDefault(arguments, 2, invokeResult); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 void AccessibilityController::logAccessibilityEventsCallback(const CppArgumentLi
st&, CppVariant* result) | |
| 131 { | |
| 132 m_logAccessibilityEvents = true; | |
| 133 result->setNull(); | |
| 134 } | |
| 135 | |
| 136 void AccessibilityController::addNotificationListenerCallback(const CppArgumentL
ist& arguments, CppVariant* result) | |
| 137 { | |
| 138 if (arguments.size() < 1 || !arguments[0].isObject()) { | |
| 139 result->setNull(); | |
| 140 return; | |
| 141 } | |
| 142 | |
| 143 m_notificationCallbacks.push_back(arguments[0]); | |
| 144 result->setNull(); | |
| 145 } | |
| 146 | |
| 147 void AccessibilityController::removeNotificationListenerCallback(const CppArgume
ntList&, CppVariant* result) | |
| 148 { | |
| 149 // FIXME: Implement this. | |
| 150 result->setNull(); | |
| 151 } | |
| 152 | |
| 153 void AccessibilityController::focusedElementGetterCallback(CppVariant* result) | |
| 154 { | |
| 155 result->set(*(getFocusedElement()->getAsCppVariant())); | |
| 156 } | |
| 157 | |
| 158 void AccessibilityController::rootElementGetterCallback(CppVariant* result) | |
| 159 { | |
| 160 result->set(*(getRootElement()->getAsCppVariant())); | |
| 161 } | |
| 162 | |
| 163 void AccessibilityController::accessibleElementByIdGetterCallback(const CppArgum
entList& arguments, CppVariant* result) | |
| 164 { | |
| 165 result->setNull(); | |
| 166 | |
| 167 if (arguments.size() < 1 || !arguments[0].isString()) | |
| 168 return; | |
| 169 | |
| 170 std::string id = arguments[0].toString(); | |
| 171 WebAXObjectProxy* foundElement = getAccessibleElementById(id); | |
| 172 if (!foundElement) | |
| 173 return; | |
| 174 | |
| 175 result->set(*(foundElement->getAsCppVariant())); | |
| 176 } | |
| 177 | |
| 178 void AccessibilityController::fallbackCallback(const CppArgumentList&, CppVarian
t* result) | |
| 179 { | |
| 180 m_delegate->printMessage("CONSOLE MESSAGE: JavaScript ERROR: unknown method
called on AccessibilityController\n"); | |
| 181 result->setNull(); | |
| 182 } | |
| 183 | |
| 184 } | |
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