Show reasons why nodes are ignored in accessibility sidebar

Source/modules/accessibility/InspectorTypeBuilderHelper.cpp

+// Copyright 2015 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 "config.h"
+#include "modules/accessibility/InspectorTypeBuilderHelper.h"
+
+#include "core/InspectorTypeBuilder.h"
+#include "core/dom/DOMNodeIds.h"
+#include "modules/accessibility/AXObject.h"
+#include "modules/accessibility/AXObjectCacheImpl.h"
+
+namespace blink {
+
+using TypeBuilder::Accessibility::AXRelatedNode;
+
+PassRefPtr<AXProperty> createProperty(String name, PassRefPtr<AXValue> value)
+{
+    RefPtr<AXProperty> property = AXProperty::create().setName(name).setValue(value);
+    return property;
+}
+
+PassRefPtr<AXProperty> createProperty(AXGlobalStates::Enum name, PassRefPtr<AXValue> value)
+{
+    return createProperty(TypeBuilder::getEnumConstantValue(name), value);
+}
+
+PassRefPtr<AXProperty> createProperty(AXLiveRegionAttributes::Enum name, PassRefPtr<AXValue> value)
+{
+    return createProperty(TypeBuilder::getEnumConstantValue(name), value);
+}
+
+PassRefPtr<AXProperty> createProperty(AXRelationshipAttributes::Enum name, PassRefPtr<AXValue> value)
+{
+    return createProperty(TypeBuilder::getEnumConstantValue(name), value);
+}
+
+PassRefPtr<AXProperty> createProperty(AXWidgetAttributes::Enum name, PassRefPtr<AXValue> value)
+{
+    return createProperty(TypeBuilder::getEnumConstantValue(name), value);
+}
+
+PassRefPtr<AXProperty> createProperty(AXWidgetStates::Enum name, PassRefPtr<AXValue> value)
+{
+    return createProperty(TypeBuilder::getEnumConstantValue(name), value);
+}
+
+String ignoredReasonName(AXIgnoredReason reason)
+{
+    switch (reason) {
+    case AXActiveModalDialog:
+        return "activeModalDialog";
+    case AXAncestorDisallowsChild:
+        return "ancestorDisallowsChild";
+    case AXAncestorIsLeafNode:
+        return "ancestorIsLeafNode";
+    case AXAriaHidden:
+        return "ariaHidden";
+    case AXAriaHiddenRoot:
+        return "ariaHiddenRoot";
+    case AXEmptyAlt:
+        return "emptyAlt";
+    case AXEmptyText:
+        return "emptyText";
+    case AXInert:
+        return "inert";
+    case AXInheritsPresentation:
+        return "inheritsPresentation";
+    case AXLabelContainer:
+        return "labelContainer";
+    case AXLabelFor:
+        return "labelFor";
+    case AXNotRendered:
+        return "notRendered";
+    case AXNotVisible:
+        return "notVisible";
+    case AXPresentationRole:
+        return "presentationRole";
+    case AXProbablyPresentational:
+        return "probablyPresentational";
+    case AXStaticTextUsedAsNameFor:
+        return "staticTextUsedAsNameFor";
+    case AXUninteresting:
+        return "uninteresting";
+    }
+}
+
+PassRefPtr<AXProperty> createProperty(IgnoredReason reason)
+{
+    if (reason.relatedObject)
+        return createProperty(ignoredReasonName(reason.reason), createRelatedNodeValue(reason.relatedObject));
+    return createProperty(ignoredReasonName(reason.reason), createBooleanValue(true));
+}
+
+PassRefPtr<AXValue> createValue(String value, AXValueType::Enum type)
+{
+    RefPtr<AXValue> axValue = AXValue::create().setType(type);
+    axValue->setValue(JSONString::create(value));
+    return axValue;
+}
+
+PassRefPtr<AXValue> createValue(int value, AXValueType::Enum type)
+{
+    RefPtr<AXValue> axValue = AXValue::create().setType(type);
+    axValue->setValue(JSONBasicValue::create(value));
+    return axValue;
+}
+
+PassRefPtr<AXValue> createValue(float value, AXValueType::Enum type)
+{
+    RefPtr<AXValue> axValue = AXValue::create().setType(type);
+    axValue->setValue(JSONBasicValue::create(value));
+    return axValue;
+}
+
+PassRefPtr<AXValue> createBooleanValue(bool value, AXValueType::Enum type)
+{
+    RefPtr<AXValue> axValue = AXValue::create().setType(type);
+    axValue->setValue(JSONBasicValue::create(value));
+    return axValue;
+}
+
+PassRefPtr<AXRelatedNode> relatedNodeForAXObject(const AXObject* axObject)
+{
+    Node* node = axObject->node();
+    if (!node)
+        return PassRefPtr<AXRelatedNode>();
+    int backendNodeId = DOMNodeIds::idForNode(node);
+    if (!backendNodeId)
+        return PassRefPtr<AXRelatedNode>();
+    RefPtr<AXRelatedNode> relatedNode = AXRelatedNode::create().setBackendNodeId(backendNodeId);
+    if (!node->isElementNode())
+        return relatedNode;
+
+    Element* element = toElement(node);
+    const AtomicString& idref = element->getIdAttribute();
+    if (!idref.isEmpty())
+        relatedNode->setIdref(idref);
+    return relatedNode;
+}
+
+PassRefPtr<AXValue> createRelatedNodeValue(const AXObject* axObject)
+{
+    RefPtr<AXValue> axValue = AXValue::create().setType(AXValueType::Idref);
+    RefPtr<AXRelatedNode> relatedNode = relatedNodeForAXObject(axObject);
+    axValue->setRelatedNodeValue(relatedNode);
+    return axValue;
+}
+
+PassRefPtr<AXValue> createRelatedNodeListValue(AXObject::AccessibilityChildrenVector axObjects)
+{
+    RefPtr<TypeBuilder::Array<AXRelatedNode>> relatedNodes = TypeBuilder::Array<AXRelatedNode>::create();
+    for (unsigned i = 0; i < axObjects.size(); i++) {
+        if (RefPtr<AXRelatedNode> relatedNode = relatedNodeForAXObject(axObjects[i].get()))
+            relatedNodes->addItem(relatedNode);
+    }
+    RefPtr<AXValue> axValue = AXValue::create().setType(AXValueType::IdrefList);
+    axValue->setRelatedNodeArrayValue(relatedNodes);
+    return axValue;
+}
+
+} // namespace blink