Added validation logic to multivalued text field

https://fedorahosted.org/freeipa/ticket/1466

install/ui/field.js

@@ -522,7 +522,35 @@ IPA.multivalued_field = function(spec) {
 
     that.widget_value_changed = function() {
         that.set_dirty(that.test_dirty());
-        //that.validate(); disabling validation for now
+        that.validate();
+    };
+
+    that.validate = function() {
+
+        that.hide_error();
+        that.valid = true;
+
+        var values = that.save();
+
+        if (that.is_empty(values)) {
+            return that.valid;
+        }
+
+        for (var i=0; i<values.length; i++) {
+
+            for (var j=0; j<that.validators.length; j++) {
+
+                var validation_result = that.validators[j].validate(values[i], that);
+                if (!validation_result.valid) {
+                    that.valid = false;
+                    var row_index = that.widget.get_saved_value_row_index(i);
+                    that.widget.show_child_error(row_index, validation_result.message);
+                    break;
+                }
+            }
+        }
+
+        return that.valid;
     };
 
     return that;

install/ui/widget.js

@@ -351,7 +351,7 @@ IPA.multivalued_text_widget = function(spec) {
         for(var i=0; i<that.rows.length; i++) {
             var row = that.rows[i];
             row.widget.hide_undo();
-            if(row.is_new) row.remove_link.show();
+            row.remove_link.show();
         }
     };
 
@@ -365,6 +365,31 @@ IPA.multivalued_text_widget = function(spec) {
         that.show_undo();
     };
 
+    that.hide_error = function() {
+
+        that.widget_hide_error();
+
+        for (var i=0; i<that.rows.length; i++) {
+            that.rows[i].widget.hide_error();
+        }
+    };
+
+    that.show_child_error = function(index, error) {
+
+        that.rows[index].widget.show_error(error);
+    };
+
+    that.get_saved_value_row_index = function(index) {
+
+        for (var i=0; i<that.rows.length;i++) {
+
+            if(that.rows[i].deleted) index++;
+            if(i === index) return i;
+        }
+
+        return -1; //error state
+    };
+
     that.save = function() {
 
         var values = [];