Complete system property names in "VM option" field in Grails Run Target Dialog.

platform/lang-impl/src/com/intellij/util/TextFieldCompletionProvider.java

@@ -46,4 +46,8 @@ public abstract class TextFieldCompletionProvider {
   }
 
   protected abstract void addCompletionVariants(@NotNull String text, int offset, @NotNull String prefix, @NotNull CompletionResultSet result);
+
+  public EditorTextField createEditor(Project project) {
+    return new EditorTextField(createDocument(project), project, PlainTextLanguage.INSTANCE.getAssociatedFileType());
+  }
 }

plugins/groovy/src/org/jetbrains/plugins/groovy/mvc/MvcRunTargetDialog.form

@@ -61,14 +61,6 @@
                   <text value="VM options:"/>
                 </properties>
               </component>
-              <component id="8904c" class="javax.swing.JTextField" binding="myVmOptionsField">
-                <constraints>
-                  <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
-                    <preferred-size width="150" height="-1"/>
-                  </grid>
-                </constraints>
-                <properties/>
-              </component>
               <component id="b107f" class="javax.swing.JLabel" binding="myModuleLabel">
                 <constraints>
                   <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
@@ -83,6 +75,12 @@
                 </constraints>
                 <properties/>
               </component>
+              <component id="b192e" class="com.intellij.ui.EditorTextField" binding="myVmOptionsField" custom-create="true">
+                <constraints>
+                  <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties/>
+              </component>
             </children>
           </grid>
         </children>

plugins/groovy/src/org/jetbrains/plugins/groovy/mvc/MvcRunTargetDialog.java

@@ -44,7 +44,7 @@ public class MvcRunTargetDialog extends DialogWrapper {
   private JPanel contentPane;
   private JLabel myTargetLabel;
   private JPanel myFakePanel;
-  private JTextField myVmOptionsField;
+  private EditorTextField myVmOptionsField;
   private JComboBox myModuleBox;
   private JLabel myModuleLabel;
   private JLabel myVmOptionLabel;
@@ -140,6 +140,22 @@ public class MvcRunTargetDialog extends DialogWrapper {
     myFakePanel = new JPanel(new BorderLayout());
     myFakePanel.add(myTargetField, BorderLayout.CENTER);
 
+    TextFieldCompletionProvider vmOptionCompletionProvider = new TextFieldCompletionProvider() {
+      @NotNull
+      @Override
+      protected String getPrefix(@NotNull String currentTextPrefix) {
+        return MvcRunTargetDialog.getPrefix(currentTextPrefix);
+      }
+
+      @Override
+      protected void addCompletionVariants(@NotNull String text, int offset, @NotNull String prefix, @NotNull CompletionResultSet result) {
+        if (prefix.endsWith("-D")) {
+          result.addAllElements(MvcTargetDialogCompletionUtils.getSystemPropertiesVariants());
+        }
+      }
+    };
+    myVmOptionsField = vmOptionCompletionProvider.createEditor(myModule.getProject());
+
     new TextFieldCompletionProvider() {
 
       @NotNull

plugins/groovy/src/org/jetbrains/plugins/groovy/mvc/util/MvcTargetDialogCompletionUtils.java

@@ -53,20 +53,31 @@ public class MvcTargetDialogCompletionUtils {
     "grails.testing.functional.baseUrl", "grails.compile.artefacts.closures.convert"
   };
 
+  private static List<LookupElement> SYSTEM_PROPERTIES_VARIANTS;
+  
   private MvcTargetDialogCompletionUtils() {
   }
 
-  public static Collection<LookupElement> collectVariants(@NotNull Module module, @NotNull String text, int offset, @NotNull String prefix) {
-    List<LookupElement> res = new ArrayList<LookupElement>();
-
-    if (prefix.startsWith("-D")) {
-      for (String property : SYSTEM_PROPERTIES) {
-        res.add(TailTypeDecorator.withTail(LookupElementBuilder.create("-D" + property), MyTailTypeEQ.INSTANCE));
+  public static List<LookupElement> getSystemPropertiesVariants() {
+    if (SYSTEM_PROPERTIES_VARIANTS == null) {
+      LookupElement[] res = new LookupElement[SYSTEM_PROPERTIES.length];
+      for (int i = 0; i < res.length; i++) {
+        res[i] = TailTypeDecorator.withTail(LookupElementBuilder.create("-D" + SYSTEM_PROPERTIES[i]), MyTailTypeEQ.INSTANCE);
       }
 
-      return res;
+      SYSTEM_PROPERTIES_VARIANTS = Arrays.asList(res);
     }
 
+    return SYSTEM_PROPERTIES_VARIANTS;
+  }
+  
+  public static Collection<LookupElement> collectVariants(@NotNull Module module, @NotNull String text, int offset, @NotNull String prefix) {
+    if (prefix.startsWith("-D")) {
+      return getSystemPropertiesVariants();
+    }
+
+    List<LookupElement> res = new ArrayList<LookupElement>();
+
     if (text.substring(0, offset).matches("\\s*(?:(:?-\\S+|dev|prod|test)\\s+)*\\S*")) {
       // Complete command name because command name is not typed.
       for (String completionVariant : getAllTargetNames(module)) {