Bug 243374

Summary: dragend event doesn't have dragged content unlike drop event
Product: WebKit Reporter: Ahmad Saleem <ahmad.saleem792>
Component: HTML EditingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: ap, bfulgham, karlcow, rniwa, webkit-bug-importer, wenson_hsieh
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: Mac (Apple Silicon)   
OS: macOS 12   
URL: https://jsfiddle.net/3vjnqdmw/show
Attachments:
Description Flags
safari, firefox, chrome console log for event.dataTransfer none

Ahmad Saleem
Reported 2022-07-30 10:49:51 PDT
Hi Team, Thanks for your continuous effort. I took the example data from below mentioned source and changed it into JSFiddle: JSFiddle Link - https://jsfiddle.net/3vjnqdmw/show Source - http://udn.realityripple.com/docs/Web/API/DataTransfer/clearData Now I experience following bug: *** STEPS TO REPRODUCE *** 1. Open JSFiddle and Run 2. Drag and Drag [Select this element...] into [Drop Zone] >> ACTUAL RESULT: Status: Drop done Data is: empty >> EXPECTED RESULT: Status: Drop done Data is: source _____ Other browsers: Chrome Canary 106 -> same as Safari 15.6 Firefox Nightly 105 -> Show "Expected Result". _______ Thanks for your continuous work, please mark it as duplicate since I am not able to find related bug. Hence, I am filing this.
Attachments
safari, firefox, chrome console log for event.dataTransfer (209.28 KB, image/png)
2022-07-31 20:09 PDT, Karl Dubost 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Ryosuke Niwa
Comment 1 2022-07-31 12:39:24 PDT
This isn't really an issue with clearData but rather with dragend event getting dispatched without the drag content.
Karl Dubost
Comment 2 2022-07-31 20:09:49 PDT
Created attachment 461328 [details] safari, firefox, chrome console log for event.dataTransfer Firefox Nightly 105.0a1 Google Chrome Canary 106.0.5212.0 Safari 16.0 According to https://html.spec.whatwg.org/multipage/dnd.html#dndevents The drag data store mode is drop -> read-only mode dragend -> protected mode Protected mode. https://html.spec.whatwg.org/multipage/dnd.html#concept-dnd-p > For all other events. The formats and kinds in the drag data store list of items representing dragged data can be enumerated, but the data itself is unavailable and no new data can be added. *data itself is unavailable* So would it be a bug from Firefox?
Karl Dubost
Comment 3 2022-08-01 18:36:24 PDT
I opened https://bugzilla.mozilla.org/show_bug.cgi?id=1782633
Radar WebKit Bug Importer
Comment 4 2022-08-06 10:50:16 PDT
<rdar://problem/98247037>
Ryosuke Niwa
Comment 5 2022-08-06 14:20:25 PDT
I think this is config changed since WebKit's behavior is probably right here.
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