Show reasons why nodes are ignored in accessibility sidebar

LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesTest.js

Index: LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesTest.js
diff --git a/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesTest.js b/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesTest.js
new file mode 100644
index 0000000000000000000000000000000000000000..6f814b8b4275715b84420ce1cde16d290b205243
--- /dev/null
+++ b/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodesTest.js
@@ -0,0 +1,173 @@
+// 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.
+
+function initialize_IgnoredNodesTests() {
+InspectorTest.dumpAccessibilityNodesByIdrefAndCompleteTest = function(ids, msg)
+{
+    if (msg.error) {
+        InspectorTest.log(msg.error.message);
+        InspectorTest.completeTest();
+        return;
+    }
+
+
+    var rootNode = msg.result.root;
+    var promises = [];
+    for (var id of ids) {
+        var selector = "#" + id;
+        var promise = InspectorTest._sendQuerySelector(rootNode.nodeId, selector)
+            .then(InspectorTest._getAXNode)
+            .then(InspectorTest._rewriteNodes)
+            .then(InspectorTest._dumpNode.bind(null, selector))
+            .catch(function(msg) {
+                       InspectorTest.log("Error: " + JSON.stringify(msg));
+                   })
+        promises.push(promise);
+    }
+
+    Promise.all(promises).then(function() { InspectorTest.completeTest(); });
+}
+
+InspectorTest._sendCommandPromise = function(command, params)
+{
+    return new Promise(function(resolve, reject) {
+        InspectorTest.sendCommand(command, params, function(msg) {
+            if (msg.error) {
+                reject(msg.error);
+                return;
+            }
+
+            resolve(msg);
+        })
+    });
+}
+
+
+InspectorTest._sendQuerySelector = function(nodeId, selector)
+{
+    return InspectorTest._sendCommandPromise("DOM.querySelector", { "nodeId": nodeId, "selector": selector });
+}
+
+InspectorTest._getAXNode = function(msg)
+{
+    var node = msg.result;
+    return InspectorTest._sendCommandPromise("Accessibility.getAXNode", { "nodeId": node.nodeId });
+}
+
+InspectorTest._describeNode = function(nodeData)
+{
+    var description = nodeData.nodeName.toLowerCase();
+    switch (nodeData.nodeType) {
+    case Node.ELEMENT_NODE:
+        var p = nodeData.attributes.indexOf("id");
+        if (p >= 0)
+            description += "#" + nodeData.attributes[p + 1];
+    }
+    return description;
+}
+
+InspectorTest._rewriteNode = function(relatedNode)
+{
+    function rewriteNodePromise(resolve, reject)
+    {
+        if (!("backendNodeId" in relatedNode)) {
+            reject("Could not find backendNodeId in " + JSON.stringify(relatedNode));
+            return;
+        }
+        var backendNodeId = relatedNode.backendNodeId;
+
+        function onNodeResolved(backendNodeId, message)
+        {
+            var nodeId = message.result.nodeIds[0];
+            if (!(nodeId in nodeInfo)) {
+                relatedNode.nodeResult = "[NODE NOT FOUND]";
+                resolve();
+                return;
+            }
+            var node = nodeInfo[nodeId];
+            delete relatedNode.backendNodeId;
+            relatedNode.nodeResult = InspectorTest._describeNode(node);
+            resolve();
+        }
+        InspectorTest.sendCommand("DOM.pushNodesByBackendIdsToFrontend", { "backendNodeIds": [ backendNodeId ] }, onNodeResolved.bind(null, backendNodeId));
+    }
+    return new Promise(rewriteNodePromise);
+}
+
+InspectorTest._checkExists = function(path, obj, reject)
+{
+    var pathComponents = path.split(".");
+    var currentPath = [];
+    var currentObject = obj;
+    for (var component of pathComponents) {
+        currentPath.push(component);
+        if (!(component in currentObject)) {
+            reject("Could not find " + currentPath.join(".") + " in " + JSON.stringify(obj, null, "  "));
+            return false;
+        }
+        currentObject = currentObject[component];
+    }
+    return true;
+}
+
+InspectorTest._check = function(condition, errorMsg, obj, reject)
+{
+    if (condition)
+        return true;
+    reject(errorMsg + " in " + JSON.stringify(obj, null, "  "));
+}
+
+InspectorTest._rewriteNodes = function(msg)
+{
+    function rewriteNodesPromise(resolve, reject)
+    {
+        if (msg.error) {
+            reject(msg.error.message);
+            return;
+        }
+
+        if (msg.result.accessibilityNode.ignored) {
+            InspectorTest._checkExists("result.accessibilityNode.ignoredReasons", msg);
+            var properties = msg.result.accessibilityNode.ignoredReasons;
+        } else {
+            InspectorTest._checkExists("result.accessibilityNode.properties", msg);
+            var properties = msg.result.accessibilityNode.properties;
+        }
+        var promises = [];
+        for (var property of properties) {
+            if (property.value.type === "idrefList") {
+                if (!InspectorTest._checkExists("value.relatedNodeArrayValue", property, reject))
+                    return;
+                var relatedNodeArray = property.value.relatedNodeArrayValue;
+                InspectorTest._check(Array.isArray(relatedNodeArray), "value.relatedNodeArrayValue should be an array", JSON.stringify(property), reject);
+                 for (var relatedNode of relatedNodeArray)
+                     promises.push(InspectorTest._rewriteNode(relatedNode));
+            } else if (property.value.type === "idref") {
+                if (!InspectorTest._checkExists("value.relatedNodeValue", property, reject))
+                    return;
+                var relatedNode = property.value.relatedNodeValue;
+                promises.push(InspectorTest._rewriteNode(relatedNode));
+            }
+        }
+
+        Promise.all(promises).then(resolve(msg));
+    }
+    return new Promise(rewriteNodesPromise);
+}
+
+InspectorTest._dumpNode = function(selector, msg)
+{
+    function stripIds(key, value)
+    {
+        if (key == "id")
+            return "<int>"
+        if (key == "backendNodeId")
+            return "<string>"
+        if (key == "nodeId")
+            return "<string>"
+        return value;
+    }
+    InspectorTest.log(selector + ": " + JSON.stringify(msg, stripIds, "  "));
+}
+}