110359 2013-02-20 11:20:12 -0800 Web Inspector: CSSAgent.setStyleSheetText crashes on inline styles 2013-02-26 01:17:12 -0800 1 1 1 Unclassified WebKit Web Inspector (Deprecated) 528+ (Nightly build) All All RESOLVED FIXED P2 Normal --- 1 timothy apavlov apavlov graouts joepeck keishi loislo pfeldman pmuellr vsevik web-inspector-bugs webkit.review.bot yurys oldest_to_newest 837596 0 timothy 2013-02-20 11:20:12 -0800 While experimenting with style editing I found that calling CSSAgent.setStyleSheetText on an inline style's StyleSheetId will cause a crash. This happens because m_pageStyleSheet is always null for InspectorStyleSheetForInlineStyle. Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.WebCore 0x0000000101af332e WebCore::InspectorStyleSheet::reparseStyleSheet(WTF::String const&) + 62 (RefPtr.h:58) 1 com.apple.WebCore 0x0000000101a953aa WebCore::InspectorCSSAgent::SetStyleSheetTextAction::redo(int&) + 42 (InspectorCSSAgent.cpp:334) 2 com.apple.WebCore 0x0000000101a9532b WebCore::InspectorCSSAgent::SetStyleSheetTextAction::perform(int&) + 43 (InspectorCSSAgent.cpp:319) 3 com.apple.WebCore 0x0000000101aca931 WebCore::InspectorHistory::perform(WTF::PassOwnPtr<WebCore::InspectorHistory::Action>, int&) + 33 (InspectorHistory.cpp:92) 4 com.apple.WebCore 0x0000000101a8cc1c WebCore::InspectorCSSAgent::setStyleSheetText(WTF::String*, WTF::String const&, WTF::String const&) + 108 (PassOwnPtr.h:56) 5 com.apple.WebCore 0x0000000101a609e2 WebCore::InspectorBackendDispatcherImpl::CSS_setStyleSheetText(long, WebCore::InspectorObject*) + 882 (PassRefPtr.h:97) 6 com.apple.WebCore 0x0000000101a7e507 WebCore::InspectorBackendDispatcherImpl::dispatch(WTF::String const&) + 1687 (RefPtr.h:56) 7 com.apple.WebCore 0x0000000101ac7ad5 WebCore::InspectorBackendDispatchTask::onTimer(WebCore::Timer<WebCore::InspectorBackendDispatchTask>*) + 69 (RefPtr.h:56) 8 com.apple.WebCore 0x0000000102243c6f WebCore::ThreadTimers::sharedTimerFiredInternal() + 175 (ThreadTimers.cpp:132) 9 com.apple.WebCore 0x00000001020cbeda WebCore::timerFired(__CFRunLoopTimer*, void*) + 58 (SharedTimerMac.mm:167) 10 com.apple.CoreFoundation 0x00007fff902e4804 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20 11 com.apple.CoreFoundation 0x00007fff902e431d __CFRunLoopDoTimer + 557 12 com.apple.CoreFoundation 0x00007fff902c9ad9 __CFRunLoopRun + 1529 13 com.apple.CoreFoundation 0x00007fff902c90e2 CFRunLoopRunSpecific + 290 14 com.apple.HIToolbox 0x00007fff95e3eeb4 RunCurrentEventLoopInMode + 209 15 com.apple.HIToolbox 0x00007fff95e3ec52 ReceiveNextEventCommon + 356 16 com.apple.HIToolbox 0x00007fff95e3eae3 BlockUntilNextEventMatchingListInMode + 62 17 com.apple.AppKit 0x00007fff93bf5563 _DPSNextEvent + 685 18 com.apple.AppKit 0x00007fff93bf4e22 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128 19 com.apple.AppKit 0x00007fff93bec1d3 -[NSApplication run] + 517 20 com.apple.WebCore 0x0000000102076e8c WebCore::RunLoop::run() + 76 (RunLoopMac.mm:43) 21 com.apple.WebKit2 0x000000010029d29c int WebKit::ChildProcessMain<WebKit::WebProcess, WebKit::WebContentProcessMainDelegate>(int, char**) + 702 (ChildProcessEntryPoint.h:100) 22 com.apple.WebProcess 0x0000000100000df7 main + 228 (ChildProcessMain.mm:73) 23 libdyld.dylib 0x00007fff8e0c07e1 start + 1 837642 1 apavlov 2013-02-20 12:13:31 -0800 In fact, as you figure InspectorStyleSheetForInlineStyle is not intended to be given a new stylesheet text. How did you extract the styleSheetId for that? 837690 2 timothy 2013-02-20 13:21:22 -0800 The styleSheetId property on the CSSStyleId. 838151 3 apavlov 2013-02-20 22:24:29 -0800 (In reply to comment #2) > The styleSheetId property on the CSSStyleId. OK, so you didn't get it through getAllStyleSheets() or something. Do you think the best option is to make setStyleSheetText() (and some other operations, like addRule()) a no-op (return error) for these stylesheets? Or can you think of some special semantics for [some of] those? 838294 4 189499 apavlov 2013-02-21 03:36:41 -0800 Created attachment 189499 Patch 838727 5 timothy 2013-02-21 12:55:37 -0800 Returning an error is fine. Setting the text for any style declaration is tracked by bug 109340. And that should work for inline styles. 841773 6 189499 webkit.review.bot 2013-02-26 01:17:08 -0800 Comment on attachment 189499 Patch Clearing flags on attachment: 189499 Committed r144025: <http://trac.webkit.org/changeset/144025> 841774 7 webkit.review.bot 2013-02-26 01:17:12 -0800 All reviewed patches have been landed. Closing bug. 189499 2013-02-21 03:36:41 -0800 2013-02-26 01:17:08 -0800 Patch bug-110359-20130221153301.patch text/plain 9845 apavlov U3VidmVyc2lvbiBSZXZpc2lvbjogMTQzNTY4CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggNzcwNjI0YzRiMjNhYWFl ZDVlOWVmODUyYTg3ZTFhNDMxYTI3OTE2Ni4uOGQ0N2U4MzQxMjZjZmZkZTNkYzc0NjViYzg3ZDQz ZGI5NWU5ZTUxOSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIzIEBACisyMDEzLTAyLTIxICBBbGV4 YW5kZXIgUGF2bG92ICA8YXBhdmxvdkBjaHJvbWl1bS5vcmc+CisKKyAgICAgICAgV2ViIEluc3Bl Y3RvcjogQ1NTQWdlbnQuc2V0U3R5bGVTaGVldFRleHQgY3Jhc2hlcyBvbiBpbmxpbmUgc3R5bGVz CisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xMTAzNTkK KworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICAqIGluc3Bl Y3Rvci9JbnNwZWN0b3JDU1NBZ2VudC5jcHA6CisgICAgICAgIChXZWJDb3JlOjpJbnNwZWN0b3JD U1NBZ2VudDo6U2V0U3R5bGVTaGVldFRleHRBY3Rpb246OnVuZG8pOiBQYXNzIEV4Y2VwdGlvbkNv 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