Bug 170159 – [WK2] UIKit assertion when rotating device after dismissing popover

• Status: RESOLVED
• Resolution: FIXED
• Component: WebKit2

[Wenson Hsieh]

Last Exception Backtrace:
0   CoreFoundation                     0x186099ea4 __exceptionPreprocess + 228 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/ObjC.subproj/NSException.m:166)
1   libobjc.A.dylib                    0x1a77582fc objc_exception_throw + 56 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/objc4/objc4-713/runtime/objc-exception.mm:521)
2   CoreFoundation                     0x186099d10 +[NSException raise:format:arguments:] + 104 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/ObjC.subproj/NSException.m:132)
3   Foundation                         0x187a395b8 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 112 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1423/ObjC.subproj/NSException.m:157)
4   UIKit                              0x18d0afc6c +[UIViewController _viewControllerForFullScreenPresentationFromView:] + 748 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIViewController.m:7822)
5   WebKit                             0x18e4da76c -[WKActionSheet willRotate] + 72 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/WebKit2/WebKit2-7604.1.14/UIProcess/ios/WKActionSheet.mm:152)
6   CoreFoundation                     0x18602ba5c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 20 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/AppServices.subproj/CFNotificationCenter.c:656)
7   CoreFoundation                     0x18602aff4 _CFXRegistrationPost + 416 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/AppServices.subproj/CFNotificationCenter.c:162)
8   CoreFoundation                     0x18602ad5c ___CFXNotificationPost_block_invoke + 60 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/AppServices.subproj/CFNotificationCenter.c:1054)
9   CoreFoundation                     0x1860a94ac -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1316 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/AppServices.subproj/CFXNotificationRegistrar.m:163)
10  CoreFoundation                     0x185f6007c _CFXNotificationPost + 376 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/AppServices.subproj/CFNotificationCenter.c:1051)
11  Foundation                         0x187993448 -[NSNotificationCenter postNotificationName:object:userInfo:] + 68 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1423/Misc.subproj/NSNotification.m:509)
12  UIKit                              0x18d14faa0 __59-[UIWindow _rotateToBounds:withAnimator:transitionContext:]_block_invoke + 384 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:2801)
13  UIKit                              0x18ceb1af4 +[UIView(Animation) performWithoutAnimation:] + 104 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIView.m:12181)
14  UIKit                              0x18d14f800 -[UIWindow _rotateToBounds:withAnimator:transitionContext:] + 420 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:2811)
15  UIKit                              0x18d151060 -[UIWindow _rotateWindowToOrientation:updateStatusBar:duration:skipCallbacks:] + 1228 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:3412)
16  UIKit                              0x18cf1e768 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 544 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:3455)
17  UIKit                              0x18cf1e3ec -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 148 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:3282)
18  UIKit                              0x18cf1503c __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke + 124 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:2956)
19  UIKit                              0x18cea4c34 -[UIWindow _updateToInterfaceOrientation:duration:force:] + 480 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIWindow.m:2992)
20  UIKit                              0x18d5e4a5c -[_UICanvasMetricsCalculator updateMetricsOnWindows:animated:] + 864 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/_UICanvas.m:49)
21  UIKit                              0x18d5e88d0 -[_UICanvas _computeMetrics:] + 152 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/_UICanvas.m:689)
22  UIKit                              0x18ceb1af4 +[UIView(Animation) performWithoutAnimation:] + 104 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIView.m:12181)
23  UIKit                              0x18d5e76c8 -[_UICanvas _performActions:withOverrideSettings:] + 184 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/_UICanvas.m:528)
24  UIKit                              0x18d10eb38 -[UIApplication _createSnapshotContextForScene:withName:performLayoutWithSettings:] + 428 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6566)
25  UIKit                              0x18d110294 __65-[UIApplication _performSnapshotsWithAction:forScene:completion:]_block_invoke_2 + 124 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6713)
26  FrontBoardServices                 0x194d89a8c -[FBSSceneSnapshotAction _executeNextRequest] + 240 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/FrontBoardServices/FrontBoard-450/FrontBoardServices/FBSSceneSnapshotAction.m:146)
27  FrontBoardServices                 0x194d896ac -[FBSSceneSnapshotAction executeRequestsWithHandler:completionHandler:expirationHandler:] + 228 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/FrontBoardServices/FrontBoard-450/FrontBoardServices/FBSSceneSnapshotAction.m:96)
28  UIKit                              0x18d1101b4 __65-[UIApplication _performSnapshotsWithAction:forScene:completion:]_block_invoke + 292 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6711)
29  UIKit                              0x18d10f734 -[UIApplication _beginSnapshotSessionForScene:withSnapshotBlock:] + 780 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6656)
30  UIKit                              0x18d10fee4 -[UIApplication _performSnapshotsWithAction:forScene:completion:] + 216 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6709)
31  UIKit                              0x18d10fd90 -[UIApplication _handleSnapshotAction:forScene:completion:] + 156 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:6693)
32  UIKit                              0x18d10b770 __71-[UIApplication _handleSnapshotAction:forScene:deactivationCompletion:]_block_invoke + 264 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:5967)
33  UIKit                              0x18d10b5c8 -[UIApplication _handleSnapshotAction:forScene:deactivationCompletion:] + 356 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:5981)
34  UIKit                              0x18d3513ec __98-[__UICanvasLifecycleMonitor_Compatability deactivateEventsOnly:withContext:forceExit:completion:]_block_invoke.221 + 728 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/_UICanvasLifecycleMonitor.m:426)
35  UIKit                              0x18d10f198 _runAfterCACommitDeferredBlocks + 292 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:2400)
36  UIKit                              0x18d102e4c _cleanUpAfterCAFlushAndRunDeferredBlocks + 288 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:2378)
37  UIKit                              0x18ce96178 _afterCACommitHandler + 132 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:2430)
38  CoreFoundation                     0x18604513c __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/RunLoop.subproj/CFRunLoop.c:1827)
39  CoreFoundation                     0x186042adc __CFRunLoopDoObservers + 412 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/RunLoop.subproj/CFRunLoop.c:1923)
40  CoreFoundation                     0x186042fc4 __CFRunLoopRun + 1080 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/RunLoop.subproj/CFRunLoop.c:2878)
41  CoreFoundation                     0x185f5d9a4 CFRunLoopRunSpecific + 548 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/CF/CF-1423/RunLoop.subproj/CFRunLoop.c:3154)
42  GraphicsServices                   0x19635a1ac GSEventRunModal + 100 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/GraphicsServices/GraphicsServices-633/GSEvent.c:2245)
43  UIKit                              0x18cf062f8 UIApplicationMain + 208 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3662.2/UIApplication.m:3826)
44  MobileSafari                       0x103cf3600 main + 2060 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/MobileSafari/MobileSafari-2496/main.m:170)
45  libdyld.dylib                      0x1a84c8f00 start + 4

[Wenson Hsieh]

<rdar://problem/31283829>

[Wenson Hsieh]

Created attachment 305544 [details]
Patch

[Wenson Hsieh]

Committed <trac.webkit.org/changeset/214455>.