Added on_pre_save() event. Fixes #12. Also added more menu items and …

…new setting: 'delete_blank_lines_on_save'

DeleteBlankLines.py

@@ -20,16 +20,22 @@ def run( self, edit, surplus=False):
         if (st_version == 2):
             edit = self.view.begin_edit()
 
-        # Loop through user selections.
-        for currentSelection in self.view.sel():
-            # Strip blank lines
-            newSelections.append( self.strip( edit, currentSelection, surplus ) )
-
-        # Clear selections since they've been modified.
-        self.view.sel().clear()
-
-        for newSelection in newSelections:
-            self.view.sel().add( newSelection )
+        # If there is no (empty) selection, operate on the whole file.
+        #     else, operate only on each selection (update the selection for changes)
+        if len(self.view.sel()) == 1 and self.view.substr(self.view.sel()[0]) == "":
+            self.strip( edit, sublime.Region(0, self.view.size()), surplus )
+        else:
+            # Loop through user selections.
+            for currentSelection in self.view.sel():
+                # Strip blank lines
+                newSelections.append( self.strip( edit, currentSelection, surplus ) )
+
+            # Clear selections since they've been modified.
+            self.view.sel().clear()
+
+            for newSelection in newSelections:
+                self.view.sel().add( newSelection )
+        # END: if len()...
 
         # A corresponding call to end_edit() is required.
         if (st_version == 2):
@@ -61,3 +67,10 @@ def strip( self, edit, currentSelection, surplus ):
         self.view.replace( edit, currentSelection, output )
 
         return sublime.Region( currentSelection.begin(), currentSelection.begin() + len(output) )
+
+
+class DeleteBlankLines(sublime_plugin.EventListener):
+    def on_pre_save(self, view):
+        settings = sublime.load_settings('DeleteBlankLines.sublime-settings')
+        if settings and settings.has('delete_blank_lines_on_save') and settings.get("delete_blank_lines_on_save") is True:
+            view.run_command("delete_blank_lines")

DeleteBlankLines.sublime-settings

@@ -0,0 +1,3 @@
+{
+   "delete_blank_lines_on_save": false
+}

Main.sublime-menu

@@ -24,5 +24,102 @@
                 ]
             }
         ]
+    },
+
+    {
+        "caption": "Preferences",
+        "mnemonic": "n",
+        "id": "preferences",
+        "children":
+        [
+            {
+                "caption": "Package Settings",
+                "mnemonic": "P",
+                "id": "package-settings",
+                "children":
+                [
+                    {
+                        "caption": "DeleteBlankLines",
+                        "children":
+                        [
+                            {
+                                "args": {
+                                    "file": "${packages}/DeleteBlankLines/README.md"
+                                },
+                                "caption": "README",
+                                "command": "open_file"
+                            },
+                            {
+                                "caption": "-"
+                            },
+                            {
+                                "command": "open_file",
+                                "args": {"file": "${packages}/DeleteBlankLines/DeleteBlankLines.sublime-settings"},
+                                "caption": "Settings – Default"
+                            },
+                            {
+                                "command": "open_file",
+                                "args": {"file": "${packages}/User/DeleteBlankLines.sublime-settings"},
+                                "caption": "Settings – User"
+                            },
+                            {
+                                "caption": "-"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/DeleteBlankLines/Default (Windows).sublime-keymap",
+                                    "platform": "Windows"
+                                },
+                                "caption": "Key Bindings \u2013 Default",
+                                "command": "open_file"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/DeleteBlankLines/Default (OSX).sublime-keymap",
+                                    "platform": "OSX"
+                                },
+                                "caption": "Key Bindings \u2013 Default",
+                                "command": "open_file"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/DeleteBlankLines/Default (Linux).sublime-keymap",
+                                    "platform": "Linux"
+                                },
+                                "caption": "Key Bindings \u2013 Default",
+                                "command": "open_file"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/User/Default (Windows).sublime-keymap",
+                                    "platform": "Windows"
+                                },
+                                "caption": "Key Bindings \u2013 User",
+                                "command": "open_file"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/User/Default (OSX).sublime-keymap",
+                                    "platform": "OSX"
+                                },
+                                "caption": "Key Bindings \u2013 User",
+                                "command": "open_file"
+                            },
+                            {
+                                "args": {
+                                    "file": "${packages}/User/Default (Linux).sublime-keymap",
+                                    "platform": "Linux"
+                                },
+                                "caption": "Key Bindings \u2013 User",
+                                "command": "open_file"
+                            },
+                            {
+                                "caption": "-"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
     }
 ]