URLHandlerClass.py

   1 from PyObjCTools import AppHelper
   2 from Foundation import *
   3 from AppKit import *
   4 import re
   5 import string
   6 import urllib
   7
   8 class URLHandlerClass (NSScriptCommand):
   9     def performDefaultImplementation (self):
  10         urlString = self.directParameter ()
  11         self.openURL (urlString)
  12         return None
  13
  14     def openURL (self, urlString):
  15         urlString = urllib.unquote (urlString)
  16         m = re.match ("^textedit://([^:]*):?([0-9]*):?([0-9]*):?([0-9]*)$", urlString)
  17         if m == None:
  18             NSLog ("URL doesn't match")
  19             return None
  20
  21         line = 1
  22         char = 1
  23         column = 1
  24         try:
  25             line = string.atoi (m.group (2))
  26             char = string.atoi (m.group (3))
  27             column = string.atoi (m.group (4))
  28         except ValueError:
  29             pass
  30
  31         path = m.group (1)
  32         self.jumpFile (path, line, char)
  33
  34     def charCount (self, str, line, char):
  35         line -= 1
  36         char -= 1
  37
  38         lines = string.split (str, '\n')
  39         lineChars = sum (map (lambda x: len (x) + 1, lines[:line]))
  40         if line < len (lines):
  41             lineChars += min (char, len (lines[line]))
  42         return lineChars + 1
  43
  44     def jumpFile (self, path, line, char):
  45         NSLog ("Jumping to %s %d %d\n" % (path, line, char))
  46
  47         controller = NSDocumentController.sharedDocumentController ()
  48
  49         # FIXME:
  50         #
  51         # When URIs use percent escaping for accented characters,
  52         # a point-and-click action *opens* the GUI just fine, but
  53         # here we need to handle the URI/filename/path correctly.
  54         #
  55         # A "file URL" on Mac OS X looks like this:
  56         #  file://localhost/path/to/file.ly
  57         #
  58         # It seems that file URLs of this form cannot be opened:
  59         #  file://localhost/path/to/sometext%C3%AA.ly
  60         #
  61         # The same file URL without percent escaping is opened fine???
  62         #  file://localhost/path/to/sometextê.ly
  63
  64         url = NSURL.fileURLWithPath_ (path)
  65         (doc, error) = controller.openDocumentWithContentsOfURL_display_error_ (url, True, None)
  66         if not error == None:
  67             NSLog ("Unable to open file %s" % (url))
  68         textView = doc.textView
  69         range = NSRange ()
  70         str = doc.textView.string ()
  71         range.location = self.charCount (str, line, char)
  72         range.location = min (range.location, len (str))
  73         range.length = 1
  74
  75         textView.setSelectedRange_ (range)
  76         textView.scrollRangeToVisible_ (range)
  77         return None
  78
  79 if __name__ == "__main__":
  80     AppHelper.runEventLoop ()
  81
  82