Add javascript code to split name/email pairs in maintainer fields

In the submit layer form, if a user pastes/types in a name/email pair
(e.g. My Name <my.email@example.com>) then this will automatically be
split into the name and email input fields, saving the user from doing
this by hand (since this is a common notation within repositories and
documentation.)

Additionally, if there is any text after the email address then move it
into the responsibility field unless the responsibility has been entered
by the user.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

layerindex/models.py

@@ -85,7 +85,7 @@ class LayerMaintainer(models.Model):
         ('I', 'Inactive'),
     )
     layer = models.ForeignKey(LayerItem)
-    name = models.CharField(max_length=50)
+    name = models.CharField(max_length=255)
     email = models.CharField(max_length=255)
     responsibility = models.CharField(max_length=200, blank=True, help_text='Specific area(s) this maintainer is responsible for, if not the entire layer')
     status = models.CharField(max_length=1, choices=MAINTAINER_STATUS_CHOICES, default='A')

layerindex/submitlayer.html

@@ -111,6 +111,34 @@
         }
     };
 
+    split_email = function() {
+        // Split email name/email address pairs
+        name_input = $(this)
+        split_regex = /^"?([^"@$<>]+)"? *<([^<> ]+)>[ -]*(.*)?$/
+        matches = split_regex.exec(name_input.val())
+        if( matches ){
+            name_input.val($.trim(matches[1]))
+            email_id = name_input.attr('id').replace('-name', '-email')
+            $('#' + email_id).val($.trim(matches[2]))
+            resp_id = email_id.replace('-email', '-responsibility')
+            currval = $('#' + resp_id).val()
+            // Set the responsibility with the remainder of the value unless the user has entered a value for
+            // responsibility already
+            if( currval == window['last_' + resp_id] || currval == "" ) {
+                newval = $.trim(matches[3])
+                $('#' + resp_id).val(newval)
+                window['last_' + resp_id] = newval
+            }
+        }
+    }
+
+    for(i=0;i<{{ maintainerformset.total_form_count }};i++) {
+        name_input = $('#id_layermaintainer_set-' + i + '-name')
+        name_input.change(split_email)
+        resp_id = 'id_layermaintainer_set-' + i + '-responsibility'
+        window['last_' + resp_id] = ""
+    }
+
     $(document).ready(function() {
         $('#id_vcs_url').change(auto_web_fields)
     });