SSR: autocompletion for "contained in search template" text field

platform/structuralsearch/source/com/intellij/structuralsearch/plugin/ui/ConfigurationManager.java

@@ -32,6 +32,8 @@ import org.jetbrains.annotations.Nullable;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 @State(name = "StructuralSearchPlugin", storages = @Storage(StoragePathMacros.WORKSPACE_FILE))
 public class ConfigurationManager implements PersistentStateComponent<Element> {
@@ -131,6 +133,14 @@ public class ConfigurationManager implements PersistentStateComponent<Element> {
     return config;
   }
 
+  /**
+   * @return the names of all configurations, both user defined and built in.
+   */
+  public List<String> getAllConfigurationNames() {
+    final Stream<Configuration> stream = Stream.concat(StructuralSearchUtil.getPredefinedTemplates().stream(), configurations.stream());
+    return stream.map(c -> c.getName()).collect(Collectors.toList());
+  }
+
   @NotNull
   public Collection<Configuration> getConfigurations() {
     return Collections.unmodifiableList(configurations);
@@ -158,13 +168,14 @@ public class ConfigurationManager implements PersistentStateComponent<Element> {
     return Collections.unmodifiableList(historyConfigurations);
   }
 
-  public static @Nullable String findAppropriateName(@NotNull final Collection<Configuration> configurations, @NotNull String _name,
-                                                     @NotNull final Project project) {
+  @Nullable
+  public static String findAppropriateName(@NotNull final Collection<Configuration> configurations, @NotNull String _name,
+                                           @NotNull final Project project) {
     Configuration config;
     String name = _name;
 
     while ((config = findConfigurationByName(configurations, name)) != null) {
-      int i = Messages.showYesNoDialog(
+      final int i = Messages.showYesNoDialog(
         project,
         SSRBundle.message("overwrite.message"),
         SSRBundle.message("overwrite.title"),
@@ -181,7 +192,8 @@ public class ConfigurationManager implements PersistentStateComponent<Element> {
     return name;
   }
 
-  public static @Nullable String showSaveTemplateAsDialog(@NotNull String initial, @NotNull Project project) {
+  @Nullable
+  public static String showSaveTemplateAsDialog(@NotNull String initial, @NotNull Project project) {
     return Messages.showInputDialog(
       project,
       SSRBundle.message("template.name.button"),

platform/structuralsearch/source/com/intellij/structuralsearch/plugin/ui/EditVarConstraintsDialog.java

@@ -37,7 +37,6 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.ComponentWithBrowseButton;
 import com.intellij.openapi.ui.DialogWrapper;
 import com.intellij.openapi.ui.Messages;
-import com.intellij.openapi.ui.TextFieldWithBrowseButton;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.wm.IdeFocusManager;
 import com.intellij.psi.PsiDocumentManager;
@@ -96,7 +95,7 @@ class EditVarConstraintsDialog extends DialogWrapper {
   ComponentWithBrowseButton<EditorTextField> customScriptCode;
   JCheckBox maxoccursUnlimited;
 
-  TextFieldWithBrowseButton withinTextField;
+  TextFieldWithAutoCompletionWithBrowseButton withinTextField;
   private JPanel containedInConstraints;
   private JCheckBox invertWithinIn;
   private JPanel expressionConstraints;
@@ -169,6 +168,8 @@ class EditVarConstraintsDialog extends DialogWrapper {
 
     containedInConstraints.setVisible(false);
 
+    final List<String> names = ConfigurationManager.getInstance(project).getAllConfigurationNames();
+    withinTextField.setAutoCompletionItems(names);
     withinTextField.addActionListener(new ActionListener() {
       @Override
       public void actionPerformed(@NotNull final ActionEvent e) {
@@ -541,6 +542,7 @@ class EditVarConstraintsDialog extends DialogWrapper {
 
     myRegExHelpLabel = RegExHelpPopup.createRegExLink(SSRBundle.message("regular.expression.help.label"), regexp, LOG);
     myRegExHelpLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 5));
+    withinTextField = new TextFieldWithAutoCompletionWithBrowseButton(myProject);
   }
 
   private EditorTextField createRegexComponent() {

platform/structuralsearch/source/com/intellij/structuralsearch/plugin/ui/TextFieldWithAutoCompletionWithBrowseButton.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2000-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.structuralsearch.plugin.ui;
+
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.ui.ComponentWithBrowseButton;
+import com.intellij.ui.TextAccessor;
+import com.intellij.ui.TextFieldWithAutoCompletion;
+
+import java.util.Collection;
+import java.util.Collections;
+
+/**
+ * @author Bas Leijdekkers
+ */
+public class TextFieldWithAutoCompletionWithBrowseButton
+  extends ComponentWithBrowseButton<TextFieldWithAutoCompletion<String>> implements TextAccessor {
+
+  public TextFieldWithAutoCompletionWithBrowseButton(Project project) {
+    super(TextFieldWithAutoCompletion.create(project, Collections.emptyList(), false, null), null);
+  }
+
+  @Override
+  public String getText() {
+    return getChildComponent().getText();
+  }
+
+  public void setAutoCompletionItems(Collection<String> items) {
+    System.out.println("names = " + items);
+    getChildComponent().setVariants(items);
+  }
+
+  @Override
+  public void setText(String text) {
+    getChildComponent().setText(text);
+  }
+}

platform/structuralsearch/source/com/intellij/structuralsearch/plugin/ui/VarConstraints.form

@@ -302,7 +302,7 @@
         </clientProperties>
         <border type="none" title-resource-bundle="messages/SSRBundle" title-key="var.constraints.within.pattern.border"/>
         <children>
-          <component id="ecda0" class="com.intellij.openapi.ui.TextFieldWithBrowseButton" binding="withinTextField">
+          <component id="bfd62" class="com.intellij.structuralsearch.plugin.ui.TextFieldWithAutoCompletionWithBrowseButton" binding="withinTextField" custom-create="true">
             <constraints>
               <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="2" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
             </constraints>