Edit: FileList.py
import os from tkinter import * import tkinter.messagebox as tkMessageBox class FileList: # N.B. this import overridden in PyShellFileList. from idlelib.EditorWindow import EditorWindow def __init__(self, root): self.root = root self.dict = {} self.inversedict = {} self.vars = {} # For EditorWindow.getrawvar (shared Tcl variables) def open(self, filename, action=None): assert filename filename = self.canonize(filename) if os.path.isdir(filename): # This can happen when bad filename is passed on command line: tkMessageBox.showerror( "File Error", "%r is a directory." % (filename,), master=self.root) return None key = os.path.normcase(filename) if key in self.dict: edit = self.dict[key] edit.top.wakeup() return edit if action: # Don't create window, perform 'action', e.g. open in same window return action(filename) else: edit = self.EditorWindow(self, filename, key) if edit.good_load: return edit else: edit._close() return None def gotofileline(self, filename, lineno=None): edit = self.open(filename) if edit is not None and lineno is not None: edit.gotoline(lineno) def new(self, filename=None): return self.EditorWindow(self, filename) def close_all_callback(self, *args, **kwds): for edit in list(self.inversedict): reply = edit.close() if reply == "cancel": break return "break" def unregister_maybe_terminate(self, edit): try: key = self.inversedict[edit] except KeyError: print("Don't know this EditorWindow object. (close)") return if key: del self.dict[key] del self.inversedict[edit] if not self.inversedict: self.root.quit() def filename_changed_edit(self, edit): edit.saved_change_hook() try: key = self.inversedict[edit] except KeyError: print("Don't know this EditorWindow object. (rename)") return filename = edit.io.filename if not filename: if key: del self.dict[key] self.inversedict[edit] = None return filename = self.canonize(filename) newkey = os.path.normcase(filename) if newkey == key: return if newkey in self.dict: conflict = self.dict[newkey] self.inversedict[conflict] = None tkMessageBox.showerror( "Name Conflict", "You now have multiple edit windows open for %r" % (filename,), master=self.root) self.dict[newkey] = edit self.inversedict[edit] = newkey if key: try: del self.dict[key] except KeyError: pass def canonize(self, filename): if not os.path.isabs(filename): try: pwd = os.getcwd() except OSError: pass else: filename = os.path.join(pwd, filename) return os.path.normpath(filename) def _test(): from idlelib.EditorWindow import fixwordbreaks import sys root = Tk() fixwordbreaks(root) root.withdraw() flist = FileList(root) if sys.argv[1:]: for filename in sys.argv[1:]: flist.open(filename) else: flist.new() if flist.inversedict: root.mainloop() if __name__ == '__main__': _test()
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