Excellent work, just a couple of things that I think would be important to have a really useful open dialog
- bookmarks - recent files (clicking on it, sould take me to that location, with the file selected, but allow me to choose another from the same location) - great keyboard workflow
Ideally, I just want to type as few letters as possible to get to the file I want. SO I guess the smartbar should be really smart. I like the way sublime work, if you type any part of the whole path the it appears in a dropdown combo, with most recently used ones first.
For saving a file a create folder button is a must.
Ctrl-h for showing hidden files
And also it would be handy to be able to copy and delete files (ctrl-c, ctrl-v, del, etc...) that would make it a mini file manager