[DevTools] Accessibility: Show siblings and children of selected node

third_party/WebKit/Source/core/inspector/browser_protocol.json

Index: third_party/WebKit/Source/core/inspector/browser_protocol.json
diff --git a/third_party/WebKit/Source/core/inspector/browser_protocol.json b/third_party/WebKit/Source/core/inspector/browser_protocol.json
index 91d1c6f7f9b2c3fcd69a7d1018f2f7a6be681adf..2af81016de4966d4721fdae7e5cf80f27495e46f 100644
--- a/third_party/WebKit/Source/core/inspector/browser_protocol.json
+++ b/third_party/WebKit/Source/core/inspector/browser_protocol.json
@@ -4377,22 +4377,25 @@
                     { "name": "name", "$ref": "AXValue", "description": "The accessible name for this <code>Node</code>.", "optional": true },
                     { "name": "description", "$ref": "AXValue", "description": "The accessible description for this <code>Node</code>.", "optional": true },
                     { "name": "value", "$ref": "AXValue", "description": "The value for this <code>Node</code>.", "optional": true },
-                    { "name": "properties", "type": "array", "items": { "$ref": "AXProperty" }, "description": "All other properties", "optional": true }
+                    { "name": "properties", "type": "array", "items": { "$ref": "AXProperty" }, "description": "All other properties", "optional": true },
+                    { "name": "parentId", "$ref": "AXNodeId", "description": "The ID of this node's parent node.", "optional": true },
+                    { "name": "childIds", "type": "array", "items": { "$ref": "AXNodeId" }, "description": "IDs for each of this node's child nodes.", "optional": true },

[dgozman, 2016/10/31 21:36:30]

It's usually unnecessary and error-prone to have both parentId and childId,
since they must be symmetrical and bugs can cripple in. Do we need both?

[aboxhall, 2016/10/31 22:45:15]

Hm, yeah, I can probably do without parentId.

+                    { "name": "backendDomNodeId", "$ref": "DOM.BackendNodeId", "description": "The backend ID for the associated DOM node, if any.", "optional": true }
                 ],
                 "description": "A node in the accessibility tree."
             }
         ],
         "commands": [
             {
-                "name": "getAXNodeChain",
+                "name": "getPartialAXTree",
                 "parameters": [
-                    { "name": "nodeId", "$ref": "DOM.NodeId", "description": "ID of node to get accessibility node for." },
-                    { "name": "fetchAncestors", "type": "boolean", "description": "Whether to also push down a partial tree (parent chain)." }
+                    { "name": "nodeId", "$ref": "DOM.NodeId", "description": "ID of node to get the partial accessibility tree for." },
+                    { "name": "fetchRelatives", "type": "boolean", "description": "Whether to fetch this nodes ancestors, siblings and children. Defaults to true.", "optional": true }
                 ],
                 "returns": [
-                    { "name": "nodes", "type": "array", "items": { "$ref": "AXNode" }, "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists, plus ancestors if requested." }
+                    { "name": "nodes", "type": "array", "items": { "$ref": "AXNode" }, "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists, plus its ancestors, siblings and children, if requested." }
                 ],
-                "description": "Fetches the accessibility node for this DOM node, if it exists.",
+                "description": "Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists.",
                 "experimental": true
             }
         ]