replace go to docs intention with external documentation provider

AngularJS/AngularJS.iml

@@ -5,7 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/resources" isTestSource="false" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />

AngularJS/resources/META-INF/plugin.xml

@@ -46,10 +46,7 @@
     <defaultLiveTemplatesProvider implementation="org.angularjs.AngularJSTemplatesProvider"/>
 
     <typedHandler implementation="org.angularjs.editor.AngularBracesInterpolationTypedHandler"/>
-    <intentionAction>
-      <className>org.angularjs.intentions.OpenAngularJSDocsIntention</className>
-      <category>HTML</category>
-    </intentionAction>
+
     <applicationService serviceInterface="org.angularjs.settings.AngularJSConfig"
                         serviceImplementation="org.angularjs.settings.AngularJSConfig"/>
     <editorSmartKeysConfigurable instance="org.angularjs.settings.AngularJSConfigurationPage"/>
@@ -60,6 +57,7 @@
     <fileBasedIndex implementation="com.intellij.lang.javascript.index.AngularSymbolIndex"/>
 
     <gotoSymbolContributor implementation="org.angularjs.navigation.AngularGotoSymbolContributor"/>
+    <lang.documentationProvider language="JavaScript" implementationClass="org.angularjs.AngularJSDocumentationProvider" />
 
     <multiHostInjector implementation="org.angularjs.editor.AngularJSInjector"/>
   </extensions>

AngularJS/src/org/angularjs/AngularJSDocumentationProvider.java

@@ -0,0 +1,31 @@
+package org.angularjs;
+
+import com.intellij.lang.documentation.DocumentationProviderEx;
+import com.intellij.lang.javascript.index.AngularDirectivesIndex;
+import com.intellij.lang.javascript.index.JSNamedElementProxy;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.psi.PsiElement;
+import org.angularjs.index.AngularIndexUtil;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author Dennis.Ushakov
+ */
+public class AngularJSDocumentationProvider extends DocumentationProviderEx {
+  @Override
+  public List<String> getUrlFor(PsiElement element, PsiElement originalElement) {
+    if (element instanceof JSNamedElementProxy) {
+      final String name = ((JSNamedElementProxy)element).getName();
+      if (AngularIndexUtil.resolve(element.getProject(), AngularDirectivesIndex.INDEX_ID, name) != null) {
+        final String[] words = name.split("-");
+        for (int i = 1; i < words.length; i++) {
+          words[i] = StringUtil.capitalize(words[i]);
+        }
+        return Collections.singletonList("http://docs.angularjs.org/api/ng.directive:" + StringUtil.join(words));
+      }
+    }
+    return null;
+  }
+}