Get rid of PortProcessing object

service/port/shared.py

@@ -0,0 +1,69 @@
+# =============================================================================
+# Copyright (C) 2014 Ryan Holmes
+#
+# This file is part of pyfa.
+#
+# pyfa is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# pyfa is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with pyfa.  If not, see <http://www.gnu.org/licenses/>.
+# =============================================================================
+
+
+from abc import ABCMeta, abstractmethod
+
+
+class UserCancelException(Exception):
+    """when user cancel on port processing."""
+    pass
+
+
+class IPortUser(metaclass=ABCMeta):
+
+    ID_PULSE = 1
+    # Pulse the progress bar
+    ID_UPDATE = ID_PULSE << 1
+    # Replace message with data: update messate
+    ID_DONE = ID_PULSE << 2
+    # open fits: import process done
+    ID_ERROR = ID_PULSE << 3
+    # display error: raise some error
+
+    PROCESS_IMPORT = ID_PULSE << 4
+    # means import process.
+    PROCESS_EXPORT = ID_PULSE << 5
+    # means import process.
+
+    @abstractmethod
+    def on_port_processing(self, action, data=None):
+        """
+        While importing fits from file, the logic calls back to this function to
+        update progress bar to show activity. XML files can contain multiple
+        ships with multiple fits, whereas EFT cfg files contain many fits of
+        a single ship. When iterating through the files, we update the message
+        when we start a new file, and then Pulse the progress bar with every fit
+        that is processed.
+
+        action : a flag that lets us know how to deal with :data
+                None: Pulse the progress bar
+                1: Replace message with data
+                other: Close dialog and handle based on :action (-1 open fits, -2 display error)
+        return: True is continue process, False is cancel.
+        """
+        pass
+
+    def on_port_process_start(self):
+        pass
+
+
+def processing_notify(iportuser, flag, data):
+    if not iportuser.on_port_processing(flag, data):
+        raise UserCancelException