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I have written a small application and want to allow other applications to share data with it.
My first idea was to integrate it into the service menu. However, I need dynamically populated submenus and the Apple dev page for System Services states that "There are no submenus in the Services menu" since 10.6.
Are there any alternatives for integrating into the context menu of other applications and having submenus?
Another alternative would be to expose only the top-level services, and then make it your app's responsibility to display the "submenu" choices.
This lends the benefit of putting you in control of keyboard shortcuts for the secondary choices. The user also gains a cleaner list of services.
One alternative might be the AppleScript menu. It presents all scripts in the ~/Library/Scripts/ folder, and preserves the hierarchy of subfolders.
Issues:
A better place to ask is probably the programmer forum https://stackoverflow.com/questions/tagged/osx
But offhand I think you can make a few different variants of your .app each one registering their own Services action. Those variants could then launch your "main" app to do the heavy lifting.
These variants could be bundled inside the main application, like I see some examples here:
/Applications/Adium.app/Contents/Frameworks/Sparkle.framework/Versions/A/Resources/finish_installation.app /Applications/Android File Transfer.app/Contents/Frameworks/Breakpad.framework/Versions/A/Resources/crash_report_sender.app /Applications/Android File Transfer.app/Contents/Resources/Android File Transfer Agent.app /Applications/Android File Transfer.app/Contents/Resources/Android File Transfer Agent.app/Contents/Frameworks/Breakpad.framework/Versions/A/Resources/crash_report_sender.app /Applications/Google Chrome Canary.app/Contents/Versions/26.0.1400.0/Google Chrome Framework.framework/Resources/app_mode_loader.app /Applications/Google Chrome Canary.app/Contents/Versions/26.0.1400.0/Google Chrome Framework.framework/Resources/crash_report_sender.app /Applications/Google Chrome Canary.app/Contents/Versions/26.0.1400.0/Google Chrome Helper EH.app /Applications/Google Chrome Canary.app/Contents/Versions/26.0.1400.0/Google Chrome Helper NP.app /Applications/Google Chrome Canary.app/Contents/Versions/26.0.1400.0/Google Chrome Helper.app /Applications/Quicksilver.app/Contents/Resources/QSDroplet.app /Applications/Stainless.app/Contents/Helpers/StainlessClient.app /Applications/Firefox.app/Contents/MacOS/crashreporter.app /Applications/Firefox.app/Contents/MacOS/plugin-container.app /Applications/Firefox.app/Contents/MacOS/updater.app /Applications/TextMate.app/Contents/SharedSupport/Bundles/ActionScript.tmbundle/Support/bin/XTrace.app /Applications/TextMate.app/Contents/SharedSupport/Support/bin/CocoaDialog.app /Applications/TextMate.app/Contents/SharedSupport/Support/bin/CommitWindow.app /Applications/Xcode.app/Contents/Applications/Accessibility Inspector.app /Applications/Xcode.app/Contents/Applications/Application Loader.app /Applications/Xcode.app/Contents/Applications/FileMerge.app /Applications/Xcode.app/Contents/Applications/Instruments.app /Applications/Xcode.app/Contents/Applications/OpenGL ES Performance Detective.app …
