Fix css. Add docUrl to rule node definition.

application/src/main/java/org/thingsboard/server/service/component/AnnotationComponentDiscoveryService.java

@@ -176,6 +176,7 @@ public class AnnotationComponentDiscoveryService implements ComponentDiscoverySe
         nodeDefinition.setConfigDirective(nodeAnnotation.configDirective());
         nodeDefinition.setIcon(nodeAnnotation.icon());
         nodeDefinition.setIconUrl(nodeAnnotation.iconUrl());
+        nodeDefinition.setDocUrl(nodeAnnotation.docUrl());
         return nodeDefinition;
     }
 

rule-engine/rule-engine-api/src/main/java/org/thingsboard/rule/engine/api/NodeDefinition.java

@@ -33,5 +33,6 @@ public class NodeDefinition {
     String configDirective;
     String icon;
     String iconUrl;
+    String docUrl;
 
 }

rule-engine/rule-engine-api/src/main/java/org/thingsboard/rule/engine/api/RuleNode.java

@@ -53,6 +53,8 @@ public @interface RuleNode {
 
     String iconUrl() default "";
 
+    String docUrl() default "";
+
     boolean customRelations() default false;
 
 }

ui/src/app/help/help-links.constant.js

@@ -100,9 +100,15 @@ export default angular.module('thingsboard.help', [])
             },
             getRuleNodeLink: function(ruleNode) {
                 var link = 'ruleEngine';
-                if (ruleNode && ruleNode.component && ruleNode.component.clazz) {
+                if (ruleNode && ruleNode.component) {
-                    if (ruleNodeClazzHelpLinkMap[ruleNode.component.clazz]) {
+                    if (ruleNode.component.configurationDescriptor &&
-                        link = ruleNodeClazzHelpLinkMap[ruleNode.component.clazz];
+                        ruleNode.component.configurationDescriptor.nodeDefinition &&
+                        ruleNode.component.configurationDescriptor.nodeDefinition.docUrl) {
+                        link = ruleNode.component.configurationDescriptor.nodeDefinition.docUrl;
+                    } else if (ruleNode && ruleNode.component && ruleNode.component.clazz) {
+                        if (ruleNodeClazzHelpLinkMap[ruleNode.component.clazz]) {
+                            link = ruleNodeClazzHelpLinkMap[ruleNode.component.clazz];
+                        }
                     }
                 }
                 return link;

ui/src/scss/main.scss

@@ -283,13 +283,6 @@ div {
   }
 }
 
-md-input-container {
-  .tk-hint {
-    padding-top: 40px;
-  }
-}
-
-
 .md-caption {
   &.tb-required:after {
     content: ' *';