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Analysis: What happens if a project.pr file is dropped onto the desktop?
Last updated at 5:49 am UTC on 23 June 2018
 Project current world 
gives back a PasteUpMorph object.

A method of this object is called when a pr file is dropped onto the Squeak desktop.

Dropping a file onto the desktop.png

The diagram above was made with the following code for the diagram pasted into the input box of this
on-line service: https://sequencediagram.org/
     title Dropping a file onto the desktop

     aPasteUpMorph->aPasteUpMorph: handleEvent:anEvent

     aPasteUpMorph->aPasteUpMorph: handleDropFiles: anEvent

     aPasteUpMorph->aPasteUpMorph: dropFiles: anEvent

     aPasteUpMorph->aPasteUpMorph:handleDroppedItem: anItem event: anEvent

     aPasteUpMorph->ExternalDropHandler: lookupExternalDropHandler: anItem

    ExternalDropHandler->ExternalDropHandler:lookupServiceBasedHandler: dropStream

ExternalDropHandler->FileServices:itemsForFile: fileName



ExternalDropHandler->SimpleServiceEntry:performServiceFor: stream