110424 2013-02-20 18:37:47 -0800 Web Inspector: Cannot deep expand an element that has previously been partially expanded 2013-02-26 08:00:34 -0800 1 1 1 Unclassified WebKit Web Inspector (Deprecated) 528+ (Nightly build) All All RESOLVED FIXED InRadar P2 Normal --- 1 graouts graouts apavlov joepeck keishi loislo pfeldman pmuellr timothy vsevik web-inspector-bugs webkit-bug-importer yurys oldest_to_newest 838056 0 graouts 2013-02-20 18:37:47 -0800 While we added support for true deep-expansion with https://bugs.webkit.org/show_bug.cgi?id=66868, there is (at least) one case where this fails. In InspectorDOMAgent::pushChildNodesToFrontend(), if we find that we'd already requested children for the given node, we return early: if (m_childrenRequested.contains(nodeId)) return; This could easily happen for the <body> or <html> elements, or basically any element that you inspect directly to open the inspector. 838057 1 webkit-bug-importer 2013-02-20 18:38:26 -0800 <rdar://problem/13260224> 838071 2 189445 graouts 2013-02-20 18:56:44 -0800 Created attachment 189445 Work-in-progress patch, no tests yet. 838157 3 189445 pfeldman 2013-02-20 22:44:29 -0800 Comment on attachment 189445 Work-in-progress patch, no tests yet. View in context: https://bugs.webkit.org/attachment.cgi?id=189445&action=review > Source/WebCore/inspector/InspectorDOMAgent.cpp:453 > + node = node->firstChild(); for (node = innerFirstChild(node); node; node = innerNextSibling(node)) { ... > Source/WebCore/inspector/InspectorDOMAgent.cpp:455 > + nodeId = m_documentNodeToIdMap.get(node); Dangling nodes (the ones printed with console.log(document)) will end up with nodes being a part of another NodeToIdMap instance. m_idToNodesMap knows which map to use. Please do not reuse nodeId, this one is about child node. childNodeId > Source/WebCore/inspector/InspectorDOMAgent.cpp:456 > + if (nodeId) Should be an assertion. We know that m_childrenRequested.contains(nodeId). Hence we've sent its children. 841640 4 graouts 2013-02-25 22:22:31 -0800 (In reply to comment #3) > (From update of attachment 189445 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=189445&action=review > > > Source/WebCore/inspector/InspectorDOMAgent.cpp:455 > > + nodeId = m_documentNodeToIdMap.get(node); > > Dangling nodes (the ones printed with console.log(document)) will end up with nodes being a part of another NodeToIdMap instance. m_idToNodesMap knows which map to use. Should I simply move the `NodeToIdMap* nodeMap = m_idToNodesMap.get(nodeId);` call to before I enter the `m_childrenRequested.contains(nodeId)` condition and used this nodeMap to get the childNodeId? 841671 5 190216 graouts 2013-02-25 23:14:33 -0800 Created attachment 190216 Patch 841712 6 190216 pfeldman 2013-02-26 00:36:14 -0800 Comment on attachment 190216 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=190216&action=review > Source/WebCore/inspector/InspectorDOMAgent.cpp:457 > + childNodeId = nodeMap->get(node); you never use childNodeId outside for scope - declare it inline. 842002 7 graouts 2013-02-26 08:00:12 -0800 (In reply to comment #6) > (From update of attachment 190216 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=190216&action=review > > > Source/WebCore/inspector/InspectorDOMAgent.cpp:457 > > + childNodeId = nodeMap->get(node); > > you never use childNodeId outside for scope - declare it inline. Made the change in commit. Thanks for the review Pavel. 842003 8 graouts 2013-02-26 08:00:34 -0800 Landed in http://trac.webkit.org/changeset/144057. 189445 2013-02-20 18:56:44 -0800 2013-02-25 23:14:25 -0800 Work-in-progress patch, no tests yet. 110424.diff text/plain 1165 graouts ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL2luc3BlY3Rvci9JbnNwZWN0b3JET01BZ2VudC5j cHAgYi9Tb3VyY2UvV2ViQ29yZS9pbnNwZWN0b3IvSW5zcGVjdG9yRE9NQWdlbnQuY3BwCmluZGV4 IDY0OGY4ZDAuLjIxZGQ3ZGYgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XZWJDb3JlL2luc3BlY3Rvci9J bnNwZWN0b3JET01BZ2VudC5jcHAKKysrIGIvU291cmNlL1dlYkNvcmUvaW5zcGVjdG9yL0luc3Bl Y3RvckRPTUFnZW50LmNwcApAQCAtNDQ0LDggKzQ0NCwyMSBAQCB2b2lkIEluc3BlY3RvckRPTUFn ZW50OjpwdXNoQ2hpbGROb2Rlc1RvRnJvbnRlbmQoaW50IG5vZGVJZCwgaW50IGRlcHRoKQogICAg IE5vZGUqIG5vZGUgPSBub2RlRm9ySWQobm9kZUlkKTsKICAgICBpZiAoIW5vZGUgfHwgKG5vZGUt Pm5vZGVUeXBlKCkgIT0gTm9kZTo6RUxFTUVOVF9OT0RFICYmIG5vZGUtPm5vZGVUeXBlKCkgIT0g Tm9kZTo6RE9DVU1FTlRfTk9ERSAmJiBub2RlLT5ub2RlVHlwZSgpICE9IE5vZGU6OkRPQ1VNRU5U 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