1  "idlelib.filelist"
       2  
       3  import os
       4  from tkinter import messagebox
       5  
       6  
       7  class ESC[4;38;5;81mFileList:
       8  
       9      # N.B. this import overridden in PyShellFileList.
      10      from idlelib.editor import EditorWindow
      11  
      12      def __init__(self, root):
      13          self.root = root
      14          self.dict = {}
      15          self.inversedict = {}
      16          self.vars = {} # For EditorWindow.getrawvar (shared Tcl variables)
      17  
      18      def open(self, filename, action=None):
      19          assert filename
      20          filename = self.canonize(filename)
      21          if os.path.isdir(filename):
      22              # This can happen when bad filename is passed on command line:
      23              messagebox.showerror(
      24                  "File Error",
      25                  f"{filename!r} is a directory.",
      26                  master=self.root)
      27              return None
      28          key = os.path.normcase(filename)
      29          if key in self.dict:
      30              edit = self.dict[key]
      31              edit.top.wakeup()
      32              return edit
      33          if action:
      34              # Don't create window, perform 'action', e.g. open in same window
      35              return action(filename)
      36          else:
      37              edit = self.EditorWindow(self, filename, key)
      38              if edit.good_load:
      39                  return edit
      40              else:
      41                  edit._close()
      42                  return None
      43  
      44      def gotofileline(self, filename, lineno=None):
      45          edit = self.open(filename)
      46          if edit is not None and lineno is not None:
      47              edit.gotoline(lineno)
      48  
      49      def new(self, filename=None):
      50          return self.EditorWindow(self, filename)
      51  
      52      def close_all_callback(self, *args, **kwds):
      53          for edit in list(self.inversedict):
      54              reply = edit.close()
      55              if reply == "cancel":
      56                  break
      57          return "break"
      58  
      59      def unregister_maybe_terminate(self, edit):
      60          try:
      61              key = self.inversedict[edit]
      62          except KeyError:
      63              print("Don't know this EditorWindow object.  (close)")
      64              return
      65          if key:
      66              del self.dict[key]
      67          del self.inversedict[edit]
      68          if not self.inversedict:
      69              self.root.quit()
      70  
      71      def filename_changed_edit(self, edit):
      72          edit.saved_change_hook()
      73          try:
      74              key = self.inversedict[edit]
      75          except KeyError:
      76              print("Don't know this EditorWindow object.  (rename)")
      77              return
      78          filename = edit.io.filename
      79          if not filename:
      80              if key:
      81                  del self.dict[key]
      82              self.inversedict[edit] = None
      83              return
      84          filename = self.canonize(filename)
      85          newkey = os.path.normcase(filename)
      86          if newkey == key:
      87              return
      88          if newkey in self.dict:
      89              conflict = self.dict[newkey]
      90              self.inversedict[conflict] = None
      91              messagebox.showerror(
      92                  "Name Conflict",
      93                  f"You now have multiple edit windows open for {filename!r}",
      94                  master=self.root)
      95          self.dict[newkey] = edit
      96          self.inversedict[edit] = newkey
      97          if key:
      98              try:
      99                  del self.dict[key]
     100              except KeyError:
     101                  pass
     102  
     103      def canonize(self, filename):
     104          if not os.path.isabs(filename):
     105              try:
     106                  pwd = os.getcwd()
     107              except OSError:
     108                  pass
     109              else:
     110                  filename = os.path.join(pwd, filename)
     111          return os.path.normpath(filename)
     112  
     113  
     114  def _test():  # TODO check and convert to htest
     115      from tkinter import Tk
     116      from idlelib.editor import fixwordbreaks
     117      from idlelib.run import fix_scaling
     118      root = Tk()
     119      fix_scaling(root)
     120      fixwordbreaks(root)
     121      root.withdraw()
     122      flist = FileList(root)
     123      flist.new()
     124      if flist.inversedict:
     125          root.mainloop()
     126  
     127  
     128  if __name__ == '__main__':
     129      from unittest import main
     130      main('idlelib.idle_test.test_filelist', verbosity=2)
     131  
     132  #    _test()