I hate .textClipping files, they are some kind of bastard implementation of a file. They really aren't terribly useable but they are easy to create and so show up far too often. I've never looked into the format but I don't understand why Apple didn't just make them txt or rtf files. Instead they created a specially functioning file that is not well supported.
.textClipping files are supported as expected if you drag from the Finder to an open document in TextMate, i.e. the contents are inserted at the insertion point.
Dropping a .textClipping file on TextMate's app icon opens a new empty window with the textClipping's name. Desired behavior would be to display the textClipping's contents. Bonus points for making the textClipping editable!
Selecting a textClipping in the project drawer displays an empty window with the title set to the textClipping file's title. Desired behavior would be to display the textClipping's contents. Bonus points for making the textClipping editable.
Dragging a textClipping file from a project window to the currently displayed document results in no change to the current document. Desired behavior is to insert the contents of the textClipping file at the insertion point, i.e. the same behavior as dragging from the Finder.
thanks for listening!