import os, sys
from Tkinter import *

# Configure ------------------------------------------------------------

CONFIGFILE = '~/.ZopeEditDirectories'


# /Configure -----------------------------------------------------------




CONFIGFILE = os.path.expanduser(CONFIGFILE)
# read the file
if os.path.isfile(CONFIGFILE):
    DIRS = [x.strip() for x in file(CONFIGFILE).readlines()]
else:
    DIRS = []
    _base = os.path.expanduser('~/zope')
    for d in os.listdir(_base):
        print d, os.path.isdir(d), d.find('zope')
        if os.path.isdir(os.path.join(_base, d)) and d.find('zope') >-1:
            DIRS.append(os.path.join(_base, d))

#------------------------------------------------------------------------------

class App:

    def __init__(self, master):

        frame = Frame(master)
        frame.pack()

        c =0
        for path in DIRS:
            
            _callback = eval ("lambda: remember_path(%r)" % path)
            
            b = Button(frame, text=path.split('/')[-1],
                       command=_callback)
            setattr(self, 'btn_%s'%c, b)
            #self.btn = b
            
            #self.btn.pack(side=TOP)
            getattr(self, 'btn_%s'%c).pack(side=TOP)
            c += 1
        
        self.button = Button(frame, text="QUIT", fg="red", command=frame.quit)
        self.button.pack(side=BOTTOM)
        

def moveUpListelement(element, xlist):
    """ move an element in a _mutable_ list up one position
    if possible. If the element is a list, then the function
    is self recursivly called for each subelement.
    """
    
    assert type(xlist)==type([]), "List to change not of list type "\
                                  "(%r)"%type(xlist)
        
    if type(element)==type([]):
        for subelement in element:
            moveUpListelement(subelement, xlist)
            
    if element==xlist[0]:
        pass
    elif element in xlist:
        i=xlist.index(element)
        xlist[i], xlist[i-1] = xlist[i-1], xlist[i]
        
def remember_path(desired_path):
    # puts it up one position:
    moveUpListelement(desired_path, DIRS)
    #DIRS.remove(desired_path)
    #DIRS.insert(0, desired_path)
    
    as_string = '\n'.join(DIRS)
    w=file(CONFIGFILE, 'w').write(as_string)
    print desired_path
    sys.exit(0)
        
        

root = Tk()

app = App(root)

root.mainloop()