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PODrop e-mail from mail.app into NSWindow object
 

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  1. PODrop e-mail from mail.app into NSWindow object
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    <p>I have an cocoa app where I would like to accept e-mails from mail.app dragged into the main window of the app. I have in my applicationDidFinishLaunching: </p> <pre><code>[_window registerForDraggedTypes: [NSArray arrayWithObjects: NSFilenamesPboardType, (NSString *)kPasteboardTypeFileURLPromise, nil]]; //kUTTypeData [_window setDelegate:(id) self]; </code></pre> <p>This works fine, I can receive a document, in my performDragOperation: using</p> <pre><code>NSArray * files = [sender namesOfPromisedFilesDroppedAtDestination:url]; </code></pre> <p>However, this only lets me drag the emails one-by-one. If I mark several emails, everything seems OK until I drop, then nothing happens. The performDragOperation is not even called. </p> <p>I have tried to add kUTTypeData to the registerForDraggedTypes..., and then I get the performDragOperation... called, but then I cannot use the namesOfPromisedFilesDroppedAtDestination:url as it returns a nil pointer. </p> <p>When I had the kUTTypeData included in the register... I included this in the performDragOperation to see what types in drag: </p> <pre><code>pboard = [sender draggingPasteboard]; NSLog(@"perform drag entered, %@", [pboard types]); </code></pre> <p>With the following result: </p> <pre><code>2013-07-25 15:09:50.771 BO2ICAL[1672:303] perform drag entered, ( "dyn.ah62d4rv4gu8y4zvanr41a3pwfz30n25wqz4ca5pfsr30c35feb4he2pssrxgn6vasbu1g7dfqm10c6xeeb4hw6df", "MV Super-secret message transfer pasteboard type", "dyn.ah62d4rv4gu8zg7puqz3c465fqr3gn7bakf41k55rqf4g86vasbu1g7dfqm10c6xeeb4hw6df", "Super-secret Automator pasteboard type" ) </code></pre> <p>While the list for single e-mails are: </p> <blockquote> <p>2013-07-25 15:14:30.096 BO2ICAL[1672:303] perform drag entered, ( "dyn.ah62d4rv4gu8y4zvanr41a3pwfz30n25wqz4ca5pfsr30c35feb4he2pssrxgn6vasbu1g7dfqm10c6xeeb4hw6df", "MV Super-secret message transfer pasteboard type", "dyn.ah62d4rv4gu8zg7puqz3c465fqr3gn7bakf41k55rqf4g86vasbu1g7dfqm10c6xeeb4hw6df", "Super-secret Automator pasteboard type", "dyn.ah62d4rv4gu8yc6durvwwa3xmrvw1gkdusm1044pxqyuha2pxsvw0e55bsmwca7d3sbwu", "Apple files promise pasteboard type", "public.url", "CorePasteboardFlavorType 0x75726C20", "dyn.ah62d4rv4gu8yc6durvwwaznwmuuha2pxsvw0e55bsmwca7d3sbwu", "Apple URL pasteboard type", "public.url-name", "CorePasteboardFlavorType 0x75726C6E", "com.apple.pasteboard.promised-file-content-type", "com.apple.pasteboard.promised-file-url", "dyn.ah62d4rv4gu8y6y4usm1044pxqzb085xyqz1hk64uqm10c6xenv61a3k", NSPromiseContentsPboardType )</p> </blockquote> <p>Does anyone have any advice how to do this correctly in order to accept multiple e-mails? </p>
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    1. COI'd submit it to Apple's Bug Reporter. Dragging a single Mail.app message to a Finder window produces a .eml file, and dragging to a plain text editor produces the message's subject, and dragging to a rich text editor produces the message's subject as a hyperlink to the message. Dragging multiple Mail.app messages is useless outside of Mail, though; it appears good only for moving messages between mailboxes. As a workaround, you could ask users to copy messages and paste them into your app.
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    2. COThanks. The purpose is to put the mails into a database where it can be connected to company, project, etc. In my case i use mailcore2 to parse the eml files and put them into this database. If the user want to drag several mails this makes totally sense for this project.
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