{"action":"created","comment":{"url":"https://api.github.com/repos/flutter/flutter/pulls/comments/50208914","id":50208914,"diff_hunk":"@@ -88,16 +88,25 @@ class StockHomeState extends State<StockHome> {\n                 content: new Text('This feature has not yet been implemented.'),\n                 actions: <Widget>[\n                   new FlatButton(\n-                    child: new Text('USE IT'),\n-                    onPressed: () {\n-                      Navigator.pop(context, false);\n-                    }\n+                    onPressed: () { debugDumpRenderTree(); debugDumpSemanticsTree(); },\n+                    child: new Row(\n+                      children: <Widget>[\n+                        new Icon(\n+                          icon: 'device/dvr',\n+                          size: IconSize.s18\n+                        ),\n+                        new Container(\n+                          width: 8.0\n+                        ),\n+                        new Text('DUMP SEMANTICS'),","path":"examples/stocks/lib/stock_home.dart","position":18,"original_position":18,"commit_id":"412fbd99c845b3166b42da2fe34f4b9f93be44cb","original_commit_id":"412fbd99c845b3166b42da2fe34f4b9f93be44cb","user":{"login":"Hixie","id":551196,"avatar_url":"https://avatars.githubusercontent.com/u/551196?v=3","gravatar_id":"","url":"https://api.github.com/users/Hixie","html_url":"https://github.com/Hixie","followers_url":"https://api.github.com/users/Hixie/followers","following_url":"https://api.github.com/users/Hixie/following{/other_user}","gists_url":"https://api.github.com/users/Hixie/gists{/gist_id}","starred_url":"https://api.github.com/users/Hixie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Hixie/subscriptions","organizations_url":"https://api.github.com/users/Hixie/orgs","repos_url":"https://api.github.com/users/Hixie/repos","events_url":"https://api.github.com/users/Hixie/events{/privacy}","received_events_url":"https://api.github.com/users/Hixie/received_events","type":"User","site_admin":false},"body":"I'll revert this change.","created_at":"2016-01-20T02:48:08Z","updated_at":"2016-01-20T02:48:08Z","html_url":"https://github.com/flutter/flutter/pull/1309#discussion_r50208914","pull_request_url":"https://api.github.com/repos/flutter/flutter/pulls/1309","_links":{"self":{"href":"https://api.github.com/repos/flutter/flutter/pulls/comments/50208914"},"html":{"href":"https://github.com/flutter/flutter/pull/1309#discussion_r50208914"},"pull_request":{"href":"https://api.github.com/repos/flutter/flutter/pulls/1309"}}},"pull_request":{"url":"https://api.github.com/repos/flutter/flutter/pulls/1309","id":56557477,"html_url":"https://github.com/flutter/flutter/pull/1309","diff_url":"https://github.com/flutter/flutter/pull/1309.diff","patch_url":"https://github.com/flutter/flutter/pull/1309.patch","issue_url":"https://api.github.com/repos/flutter/flutter/issues/1309","number":1309,"state":"open","locked":false,"title":"Semantics (WIP - DO NOT CHECK IN)","user":{"login":"Hixie","id":551196,"avatar_url":"https://avatars.githubusercontent.com/u/551196?v=3","gravatar_id":"","url":"https://api.github.com/users/Hixie","html_url":"https://github.com/Hixie","followers_url":"https://api.github.com/users/Hixie/followers","following_url":"https://api.github.com/users/Hixie/following{/other_user}","gists_url":"https://api.github.com/users/Hixie/gists{/gist_id}","starred_url":"https://api.github.com/users/Hixie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Hixie/subscriptions","organizations_url":"https://api.github.com/users/Hixie/orgs","repos_url":"https://api.github.com/users/Hixie/repos","events_url":"https://api.github.com/users/Hixie/events{/privacy}","received_events_url":"https://api.github.com/users/Hixie/received_events","type":"User","site_admin":false},"body":"This is a work in progress. I'll leave some notes in the code for things that are definitely not yet done.\r\n\r\nIn addition:\r\n - Sliders and drop-down buttons aren't accessible yet.\r\n - Time picker isn't accessible yet. This will require making it possible to create custom SemanticsNode subtrees.\r\n - The Java/Objective C sides here aren't done.\r\n - I need to write tests, especially for indirect manipulation of the SemanticsNode tree (adding and removing semantics, etc).\r\n - There's some weird bug in the way that I'm generating the semantics tree currently which is resulting in popup menus working the first time but not the second.\r\n - Currently when we mark the tree dirty we're being really aggressive. I'd like to make that either much less aggressive or remove all the complexity that's currently trying to make it less aggressive.\r\n\r\nSee https://github.com/flutter/engine/pull/2277 for the mojom used by this 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