[Webkit-unassigned] [Bug 15134] New: Assertion failure in WebCore::AppendNodeCommand::doApply() while editing <ul>

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=15134

           Summary: Assertion failure in
                    WebCore::AppendNodeCommand::doApply() while editing <ul>
           Product: WebKit
           Version: 522+ (nightly)
          Platform: All
               URL: data:text/html,<ul contenteditable="true"></ul>
        OS/Version: All
            Status: NEW
          Keywords: HasReduction
          Severity: Normal
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pewtermoose at gmail.com


Load the HTML snippet at the URL and focus it.  Enter a couple lines, then
backspace to delete what you've just entered.  When everything is erased, hit
backspace once more and you'll hit this assert:

This asserts on both Tiger (10.4.10, 8R218) and Windows XP with r25436 with
Safari 3.0.3 Public Beta.  In a release build, this deletes the <ul>.

ASSERTION FAILED: isContentEditable(m_parentNode.get()) ||
enclosingNodeOfType(m_parentNode.get(), &isContentEditable) ||
!m_parentNode->attached()
(WebKit/WebCore/editing/AppendNodeCommand.cpp:46 virtual void
WebCore::AppendNodeCommand::doApply())

Thread 0 Crashed:
0   com.apple.WebCore           0x01213934
WebCore::AppendNodeCommand::doApply() + 508
1   com.apple.WebCore           0x01229884 WebCore::EditCommand::apply() + 496
(EditCommand.cpp:92)
2   com.apple.WebCore           0x0121e1fc
WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr<WebCore::EditCommand>)
+ 72 (CompositeEditCommand.cpp:97)
3   com.apple.WebCore           0x0121e720
WebCore::CompositeEditCommand::appendNode(WebCore::Node*, WebCore::Node*) + 208
(CompositeEditCommand.cpp:172)
4   com.apple.WebCore           0x0121e824
WebCore::CompositeEditCommand::insertNodeAfter(WebCore::Node*, WebCore::Node*)
+ 216 (CompositeEditCommand.cpp:135)
5   com.apple.WebCore           0x012208d0
WebCore::CompositeEditCommand::breakOutOfEmptyListItem() + 592
(CompositeEditCommand.cpp:820)
6   com.apple.WebCore           0x01253778
WebCore::TypingCommand::deleteKeyPressed(WebCore::TextGranularity) + 412
(TypingCommand.cpp:363)
7   com.apple.WebCore           0x01254b50
WebCore::TypingCommand::deleteKeyPressed(WebCore::Document*, bool,
WebCore::TextGranularity) + 240 (TypingCommand.cpp:69)
8   com.apple.WebCore           0x0145c308
WebCore::Editor::deleteRange(WebCore::Range*, bool, bool, bool,
WebCore::EditorDeleteAction, WebCore::TextGranularity) + 428 (Editor.cpp:254)
9   com.apple.WebCore           0x0145c744
WebCore::Editor::deleteWithDirection(WebCore::SelectionController::EDirection,
WebCore::TextGranularity, bool, bool) + 656 (Editor.cpp:315)
10  com.apple.WebKit            0x0035b188 -[WebHTMLView deleteBackward:] + 240
(WebHTMLView.mm:4359)
11  com.apple.WebKit            0x0036a18c -[WebHTMLView(WebNSTextInputSupport)
doCommandBySelector:] + 1164 (WebHTMLView.mm:5636)
12  com.apple.WebKit            0x00369c58 -[WebHTMLView(WebInternal)
_interceptEditingKeyEvent:shouldSaveCommand:] + 780 (WebHTMLView.mm:5279)
13  com.apple.WebKit            0x003c2d74
WebEditorClient::handleKeypress(WebCore::KeyboardEvent*) + 228
(WebEditorClient.mm:437)
14  com.apple.WebCore           0x01457e5c
WebCore::Editor::handleKeypress(WebCore::KeyboardEvent*) + 164 (Editor.cpp:115)
15  com.apple.WebCore           0x014c1d40
WebCore::EventHandler::defaultKeyboardEventHandler(WebCore::KeyboardEvent*) +
112 (EventHandler.cpp:1489)
16  com.apple.WebCore           0x0128f120
WebCore::EventTargetNode::defaultEventHandler(WebCore::Event*) + 308
(EventTargetNode.cpp:593)
17  com.apple.WebCore           0x0128e150
WebCore::EventTargetNode::dispatchGenericEvent(WTF::PassRefPtr<WebCore::Event>,
int&, bool) + 2632 (EventTargetNode.cpp:266)
18  com.apple.WebCore           0x0128e7cc
WebCore::EventTargetNode::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, int&,
bool, WebCore::EventTarget*) + 396 (EventTargetNode.cpp:308)
19  com.apple.WebCore           0x0128e860
WebCore::EventTargetNode::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, int&,
bool) + 80 (EventTargetNode.cpp:292)
20  com.apple.WebCore           0x014c52ec
WebCore::EventHandler::keyEvent(WebCore::PlatformKeyboardEvent const&) + 800
(EventHandler.cpp:1480)
21  com.apple.WebCore           0x014bdd68
WebCore::EventHandler::keyEvent(NSEvent*) + 520 (EventHandlerMac.mm:141)
22  com.apple.WebKit            0x00356670 -[WebHTMLView keyDown:] + 360
(WebHTMLView.mm:3577)
23  com.apple.AppKit            0x937d9fa0 -[NSWindow sendEvent:] + 6424


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