66288 2011-08-16 03:34:52 -0700 Selecting all and inserting text into a page with a frameset leads to a NULL ptr 2011-08-18 01:44:20 -0700 1 1 1 Unclassified WebKit HTML Editing 528+ (Nightly build) PC Windows Vista RESOLVED FIXED P1 Normal --- 1 skylined webkit-unassigned cmarcelo eric rniwa tony wcarss webkit.review.bot oldest_to_newest 451540 0 104020 skylined 2011-08-16 03:34:52 -0700 Created attachment 104020 Repro Repro: <html> <script> setTimeout(function() { document.designMode="on"; document.execCommand("selectall"); document.execCommand("InsertText",false); }, 100); </script> <frameset><frame></frame></frameset> </html> id: chrome.dll!WebCore::Node::nodeIndex ReadAV@NULL (2478f9a3629a4d08efa42d9180043895) description: Attempt to read from unallocated NULL pointer+0x18 in chrome.dll!WebCore::Node::nodeIndex stack: chrome.dll!WebCore::Node::nodeIndex chrome.dll!WebCore::positionInParentBeforeNode chrome.dll!WebCore::InsertTextCommand::doApply chrome.dll!WebCore::EditCommand::apply chrome.dll!WebCore::CompositeEditCommand::applyCommandToComposite chrome.dll!WebCore::TypingCommand::insertTextRunWithoutNewlines chrome.dll!WebCore::TypingCommand::insertText chrome.dll!WebCore::TypingCommand::doApply chrome.dll!WebCore::EditCommand::apply chrome.dll!WebCore::applyCommand chrome.dll!WebCore::TypingCommand::insertText chrome.dll!WebCore::TypingCommand::insertText chrome.dll!WebCore::executeInsertText chrome.dll!WebCore::Editor::Command::execute chrome.dll!WebCore::Document::execCommand chrome.dll!WebCore::DocumentInternal::execCommandCallback ... This causes a selection which has no anchor node, something the code does not handle: void InsertTextCommand::doApply() { <<<snip>>> // It is possible for the node that contains startPosition to contain only unrendered whitespace, // and so deleteInsignificantText could remove it. Save the position before the node in case that happens. Position positionBeforeStartNode(positionInParentBeforeNode(startPosition.containerNode())); <<<snip>>> "startPosition.containerNode()" return NULL, which causes a NULL pointer in "positionInParentBeforeNode": inline Position positionInParentBeforeNode(const Node* node) { // FIXME: This should ASSERT(node->parentNode()) // At least one caller currently hits this ASSERT though, which indicates // that the caller is trying to make a position relative to a disconnected node (which is likely an error) // Specifically, editing/deleting/delete-ligature-001.html crashes with ASSERT(node->parentNode()) return Position(node->nonShadowBoundaryParentNode(), node->nodeIndex(), Position::PositionIsOffsetInAnchor); } 451541 1 skylined 2011-08-16 03:35:41 -0700 Chromium: https://code.google.com/p/chromium/issues/detail?id=93030 452076 2 104140 wcarss 2011-08-16 19:34:17 -0700 Created attachment 104140 Patch 452151 3 104140 eric 2011-08-16 23:46:54 -0700 Comment on attachment 104140 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=104140&action=review > Source/WebCore/editing/InsertTextCommand.cpp:112 > + if (endingSelection().isNone()) > + return; Should we have a comment here? 452316 4 104187 wcarss 2011-08-17 10:07:41 -0700 Created attachment 104187 Patch 452365 5 104187 tony 2011-08-17 11:01:55 -0700 Comment on attachment 104187 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=104187&action=review > LayoutTests/editing/inserting/insert-text-into-empty-frameset-crash.html:1 > +<html> Nit: <DOCTYPE html> > Source/WebCore/editing/InsertTextCommand.cpp:110 > deleteSelection(false, true, true, false); Wow, this function should take enums rather than 4 bools. (Unrelated to your patch, but would be a good place for a refactoring patch.) 452367 6 104187 eric 2011-08-17 11:04:16 -0700 Comment on attachment 104187 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=104187&action=review > Source/WebCore/editing/InsertTextCommand.cpp:111 > + // deleteSelection may clobber the endingSelection due to some validation wackiness in VisibleSelection. Can you be more descriptive than "wackiness"? Maybe link to a bug about said wackiness? I appreciate the extra comment, btw. The goal here would be to understand why this code is here, and under what conditions we should remove it. If there are no conditions, then we just need to understand the "why" which you gave, but in somewhat imprecise terms. You certainly can link to this bug for more info if you'd rather too. This is a total trivial nit, but I'm unfamiliar with this code and your comment is helping me better understand what you're doing. :) Thank you! 452566 7 104241 wcarss 2011-08-17 14:16:28 -0700 Created attachment 104241 improved comment / fixed test nit 452593 8 wcarss 2011-08-17 14:32:52 -0700 (In reply to comment #7) > Created an attachment (id=104241) [details] > improved comment / fixed test nit Thanks, Tony. :) 452904 9 104241 webkit.review.bot 2011-08-18 01:44:16 -0700 Comment on attachment 104241 improved comment / fixed test nit Clearing flags on attachment: 104241 Committed r93290: <http://trac.webkit.org/changeset/93290> 452905 10 webkit.review.bot 2011-08-18 01:44:20 -0700 All reviewed patches have been landed. Closing bug. 104020 2011-08-16 03:34:52 -0700 2011-08-16 03:34:52 -0700 Repro repro.html text/html 239 skylined PGh0bWw+CiAgPHNjcmlwdD4KICAgIHNldFRpbWVvdXQoZnVuY3Rpb24oKSB7CiAgICAgIGRvY3Vt ZW50LmRlc2lnbk1vZGU9Im9uIjsKICAgICAgZG9jdW1lbnQuZXhlY0NvbW1hbmQoInNlbGVjdGFs bCIpOwogICAgICBkb2N1bWVudC5leGVjQ29tbWFuZCgiSW5zZXJ0VGV4dCIsZmFsc2UpOwogICAg fSwgMTAwKTsKICA8L3NjcmlwdD4KICA8ZnJhbWVzZXQ+PGZyYW1lPjwvZnJhbWU+PC9mcmFtZXNl dD4KPC9odG1sPgo= 104140 2011-08-16 19:34:17 -0700 2011-08-17 10:07:37 -0700 Patch bug-66288-20110816193415.patch text/plain 4436 wcarss U3VidmVyc2lvbiBSZXZpc2lvbjogOTMxNjYKZGlmZiAtLWdpdCBhL0xheW91dFRlc3RzL0NoYW5n ZUxvZyBiL0xheW91dFRlc3RzL0NoYW5nZUxvZwppbmRleCA2N2EwOTRjZWU5YzBiZmU1ZWFkMDBj YzAxZmRiOGY2Y2ZiZDdlM2EzLi5iYTgyNGJiNGFkZmUyZTZkZTM5OWYxZGRiZWUzMDRiOGZhOTM2 MmYxIDEwMDY0NAotLS0gYS9MYXlvdXRUZXN0cy9DaGFuZ2VMb2cKKysrIGIvTGF5b3V0VGVzdHMv Q2hhbmdlTG9nCkBAIC0xLDMgKzEsMTYgQEAKKzIwMTEtMDgtMTYgIFd5YXR0IENhcnNzICA8d2Nh 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