Merge branch 'master' into snapshotserver

[potlatch2.git] / net / systemeD / potlatch2 / mapfeatures / Presence.as

diff --git a/net/systemeD/potlatch2/mapfeatures/Presence.as b/net/systemeD/potlatch2/mapfeatures/Presence.as
index 307428a3a78a7e51466d2cc8ef8e7bf6c980e4f5..4e815053b875d91946c2133992c3d30c7fbf5e76 100644 (file)
--- a/net/systemeD/potlatch2/mapfeatures/Presence.as
+++ b/net/systemeD/potlatch2/mapfeatures/Presence.as
@@ -2,12 +2,15 @@ package net.systemeD.potlatch2.mapfeatures {
 
     import net.systemeD.halcyon.connection.*;
 
-
+        /** This class defines the behaviour of the "Presence" attribute in a Map Feature definition. Presence is one of "always", "onTagMatch" or "withCategory".
+        * This is used to control whether edit controls for a feature show up on an given edit page.
+        */
        public class Presence {
            private static var ALWAYS:Presence;
            private static var ON_TAG_MATCH:Presence;
            private static var WITH_CATEGORY:Presence;
-       
+
+        /** Translates a string from the XML form (eg "onTagMatch") to a constant (ON_TAG_MATCH) */
         public static function getPresence(presence:String):Presence {
             if ( ALWAYS == null ) {
                 ALWAYS = new Presence();
@@ -23,6 +26,11 @@ package net.systemeD.potlatch2.mapfeatures {
             return ON_TAG_MATCH;
         }
 
+        /** Determines whether a given edit control (editor) should be used for a given entity, given a certain category page is open.
+        *
+        * If not overriden by a child class, the behaviour is "always": show the edit control on the "Basic" page, and on the appropriate category page.
+        *
+        */
         public function isEditorPresent(editor:EditorFactory, forEntity:Entity, forCategory:String):Boolean {
             return forCategory == null || forCategory == editor.category;
         }
@@ -33,19 +41,21 @@ package net.systemeD.potlatch2.mapfeatures {
 
     import net.systemeD.halcyon.connection.*;
     import net.systemeD.potlatch2.mapfeatures.*;
-
+    /** Special behaviour for the "onTagMatch" case: only show the edit controls if the tags specified for the feature are present on the entity. */
     class OnTagMatch extends Presence {
         public function OnTagMatch() {}
-        
+
         override public function isEditorPresent(editor:EditorFactory, forEntity:Entity, forCategory:String):Boolean {
             return (forCategory == null || forCategory == editor.category) &&
                       editor.areTagsMatching(forEntity);
         }
     }
 
+    /** Special behaviour for the "withCategory" case: only show the edit controls if the tags specified for the feature are present on the entity AND
+     * if the appropriate category page is open. */
     class WithCategory extends Presence {
         public function WithCategory() {}
-        
+
         override public function isEditorPresent(editor:EditorFactory, forEntity:Entity, forCategory:String):Boolean {
             return forCategory == editor.category &&
                       editor.areTagsMatching(forEntity);