diff options
Diffstat (limited to 'ranger/applications.py')
| -rw-r--r-- | ranger/applications.py | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/ranger/applications.py b/ranger/applications.py index 5f267a42..e5a5fc4e 100644 --- a/ranger/applications.py +++ b/ranger/applications.py @@ -19,12 +19,14 @@ This module faciliates starting of new processes. import os, sys from ranger.ext.waitpid_no_intr import waitpid_no_intr from subprocess import Popen, PIPE +from ranger.ext.iter_tools import flatten +from ranger.shared import FileManagerAware devnull = open(os.devnull, 'a') ALLOWED_FLAGS = 'sdpSDP' -class Applications(object): +class Applications(FileManagerAware): """ This class contains definitions on how to run programs and should be extended in ranger.defaults.apps @@ -59,6 +61,30 @@ class Applications(object): return ('vim', ) + tuple(context) """ + def _meets_dependencies(self, fnc): + try: + deps = fnc.dependencies + except AttributeError: + return True + + for dep in deps: + if hasattr(dep, 'dependencies') \ + and not self._meets_dependencies(dep): + return False + if dep not in self.fm.executables: + return False + + return True + + def either(self, context, *args): + for app in args: + try: + application_handler = getattr(self, 'app_' + app) + except AttributeError: + continue + if self._meets_dependencies(application_handler): + return application_handler(context) + def app_self(self, context): """Run the file itself""" return "./" + context.file.basename @@ -268,4 +294,11 @@ def tup(*args): is equivalent to: tup('a', *some_iterator) """ - return tuple(args) + return args + +def depends_on(*args): + args = tuple(flatten(args)) + def decorator(fnc): + fnc.dependencies = args + return fnc + return decorator |