Abstract: An access control system is provided to prevent the surreptitious granting of access to privacy related functionality on an electronic device. Software-based events to grant access to device functionality can be validated by confirming that the software event corresponds with a hardware input event. This validation prevents the spoofing of a user interface input that may be used to fraudulently grant access to specific functionality.

Abstract: The subject technology provides for identifying an item being dragged over an application in which the items are arranged in a table in a first arrangement. The subject technology copies the first arrangement to generate a second arrangement that corresponds to an initial arrangement of the items when the item is identified as being dragged over the first application. The subject technology updates the first arrangement to reflect changed positions of the items in the table resulting from another item being inserted into the table. The subject technology updates the second arrangement to reflect changed positions of items. Further, the subject technology merges the updated second arrangement with the updated first arrangement to reconcile the changed positions resulting from the item being inserted into the table at the location with the changed positions resulting from the another item being inserted into the table.

Abstract: The subject technology provides for receiving a request for a representation of an item from a destination application. The subject technology sends the request for the representation of the item to a source application. The subject technology receives a link to a file provider, the file provider fulfilling a data transfer of the representation of the item. Further, the subject technology sends the link to the file provider to the destination application.

Abstract: A device implementing drag and drop for touchscreen devices may include a processor configured to detect a drag gesture selecting an item in a first application. The processor may be further configured to detect a touch release at an end of the drag gesture for dropping the item in a second application, and send, in response to the detected touch release, a message to the second application, the message including information for a plurality of representations of the item. The processor may be further configured to receive, from the second application, a request for a representation of the item from among the plurality of representations. The processor may be further configured to send, to the first application, the request for the representation of the item. The processor may be further configured to initiate a data transfer of the representation of the item from the first application to the second application.

Abstract: The subject technology provides for detecting a drag gesture selecting an item in a first application. The subject technology detects a touch release at an end of the drag gesture for dropping the item in a second application. The subject technology sends in response to the detected touch release, a message to the second application, the message including information for a plurality of representations of the item. The subject technology receives, from the second application, a request for a representation of the item from among the plurality of representations. The subject technology sends, to the first application, the request for the representation of the item. Further, the subject technology initiates a data transfer of the representation of the item from the first application to the second application.