Implement SourceCodeEventHandler support for multiple files

src/event_handlers/event_handler_main.py

@@ -4,6 +4,6 @@ from tornado.ioloop import IOLoop
 
 
 if __name__ == '__main__':
-    anchor_webide = SourceCodeEventHandler('anchor_webide', 'login_component.py', 'login')
+    anchor_webide = SourceCodeEventHandler('anchor_webide', 'login_projectdir', 'login')
     anchor_terminado = TerminadoEventHandler('anchor_terminado', 'terminado')
     IOLoop.instance().start()

src/event_handlers/source_code_event_handler.py

@@ -1,5 +1,5 @@
 from shutil import copy, rmtree, copytree
-from os.path import splitext, isfile, join
+from os.path import splitext, isfile, join, basename
 from glob import glob
 
 from tfw.util import SupervisorMixin
@@ -15,12 +15,12 @@ class FileManager:
         self._sourcedir = source_directory
         self._workdir = working_directory
         self._reload_files()
-        self.filename = selected_file or self.files[0]
+        self.filename = selected_file or basename(self.files[0])
         self.language = map_file_extension_to_language(self.filename)
 
     def select_file(self, filename):
-        if not filename in self.files:
-            raise EnvironmentError('No such file in workdir!')
+        if not self._filepath(filename) in self.files:
+           raise EnvironmentError('No such file in workdir!')
         self.filename = filename
         self.language = map_file_extension_to_language(self.filename)
 
@@ -47,13 +47,15 @@ class FileManager:
 
 
 class SourceCodeEventHandler(EventHandlerBase, SupervisorMixin):
-    def __init__(self, anchor, filename, process_name=None):
+    def __init__(self, anchor, directory, process_name=None, selected_file=None):
         super().__init__(anchor)
-        self.filemanager = FileManager('login_projectdir', LOGIN_APP_DIR, selected_file=filename)
-        self.process_name = process_name or splitext(filename)[0]
+        self.filemanager = FileManager(directory, LOGIN_APP_DIR, selected_file=selected_file)
+        self.process_name = process_name
+
         self.commands = {
             'read': self.read,
-            'write': self.write
+            'write': self.write,
+            'select': self.select
         }
 
         # Supervisor needs these to run the login program
@@ -71,6 +73,12 @@ class SourceCodeEventHandler(EventHandlerBase, SupervisorMixin):
         self.filemanager.file_contents = data_json['data']['content']
         self.restart_process()
 
+    def select(self, data_json):
+        try:
+            self.filemanager.select_file(data_json['data']['filename'])
+        except EnvironmentError:
+            log.critical('Failed to select file "{}"'.format(data_json['data']['filename']))
+
     def handle_event(self, anchor, data_json):
         data = data_json['data']
         self.commands[data['command']](data_json)
@@ -84,4 +92,7 @@ def map_file_extension_to_language(filename):
         '.js': 'javascript'
     }
     _, extension = splitext(filename)
-    return language_map[extension]
+    language = 'javascript'
+    try: language = language_map[extension]
+    except KeyError: log.debug('No such extension in list, falling back to default: "{}".'.format(language))
+    return language