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HTML5 should allow drag and drop sources and targets to register which formats they support. Use case: Janis is using the keyboard to move items in a Web application. There are a hundred icons functioning as drag sources and targets, not all of which support the same data types. She wants to drag an icon representing a User onto one representing a Group or Office. She navigates to the icon and chooses the Drag command from its shortcut menu. At this point, a browser add-on highlights only those icons representing appropriate drag targets (those supporting the user data type). The add-on could also create temporary keyboard shortcuts for just those compatible targets or even present them as a drop-down list, which would make the operation much more efficient than if Janis had to navigate through a dozens of icons to reach her goal, more closely approximating the ease and efficiency available to mouse users. Note: See bug 13591 for a discussion of why drag and drop is valuable for accessibility.
The @dropzone attribute already does precisely this.
mass-move component to LC1
EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html Status: Accepted Change Description: no spec change Rationale: This seems to have been fixed already.