Fix UI for Kotlin Scripting page

Show 15 items in the list by default
Show hint at the top
Fixed for 201+

^KT-40097 Fixed

idea/src/org/jetbrains/kotlin/idea/script/configuration/KotlinScriptingSettingsConfigurable.form

@@ -35,7 +35,7 @@
               <grid id="5ec35" binding="panelScriptDefinitionsChooser" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
                 <margin top="0" left="0" bottom="0" right="0"/>
                 <constraints>
-                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+                  <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
                 </constraints>
                 <properties/>
                 <border type="none"/>
@@ -49,7 +49,7 @@
               </grid>
               <component id="54c9d" class="javax.swing.JLabel">
                 <constraints>
-                  <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+                  <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"/>
                 </constraints>
                 <properties>
                   <text resource-bundle="messages/KotlinBundle" key="kotlin.script.definitions.model.name.autoReloadScriptDependencies.description"/>

idea/src/org/jetbrains/kotlin/idea/script/configuration/KotlinScriptingSettingsConfigurable.java

@@ -12,9 +12,9 @@ import com.intellij.ui.table.TableView;
 import org.jetbrains.annotations.Nls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.kotlin.idea.KotlinBundle;
 import org.jetbrains.kotlin.idea.core.script.ScriptDefinitionsManager;
 import org.jetbrains.kotlin.idea.core.script.settings.KotlinScriptingSettings;
-import org.jetbrains.kotlin.idea.KotlinBundle;
 import org.jetbrains.kotlin.scripting.definitions.ScriptDefinition;
 
 import javax.swing.*;
@@ -42,13 +42,15 @@ public class KotlinScriptingSettingsConfigurable implements SearchableConfigurab
         model = KotlinScriptDefinitionsModel.Companion.createModel(manager.getAllDefinitions(), settings);
 
         panelScriptDefinitionsChooser.setLayout(new BorderLayout());
+        TableView<ModelDescriptor> table = new TableView<>(model);
         panelScriptDefinitionsChooser.add(
-                ToolbarDecorator.createDecorator(new TableView<>(model))
+                ToolbarDecorator.createDecorator(table)
                         .disableAddAction()
                         .disableRemoveAction()
                         .createPanel()
         );
 
+        table.setVisibleRowCount(15);
         return root;
     }
 

idea/src/org/jetbrains/kotlin/idea/script/configuration/KotlinScriptingSettingsConfigurable.java.193

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+package org.jetbrains.kotlin.idea.script.configuration;
+
+import com.intellij.openapi.options.Configurable;
+import com.intellij.openapi.options.SearchableConfigurable;
+import com.intellij.openapi.project.Project;
+import com.intellij.ui.ToolbarDecorator;
+import com.intellij.ui.table.TableView;
+import org.jetbrains.annotations.Nls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.kotlin.idea.KotlinBundle;
+import org.jetbrains.kotlin.idea.core.script.ScriptDefinitionsManager;
+import org.jetbrains.kotlin.idea.core.script.settings.KotlinScriptingSettings;
+import org.jetbrains.kotlin.scripting.definitions.ScriptDefinition;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class KotlinScriptingSettingsConfigurable implements SearchableConfigurable, Configurable.NoScroll {
+    public static final String ID = "preferences.language.Kotlin.scripting";
+
+    private JPanel root;
+    private JPanel panelScriptDefinitionsChooser;
+
+    private KotlinScriptDefinitionsModel model;
+
+    private final ScriptDefinitionsManager manager;
+    private final KotlinScriptingSettings settings;
+
+    public KotlinScriptingSettingsConfigurable(Project project) {
+        manager = ScriptDefinitionsManager.Companion.getInstance(project);
+        settings = KotlinScriptingSettings.Companion.getInstance(project);
+    }
+
+    @Nullable
+    @Override
+    public JComponent createComponent() {
+        model = KotlinScriptDefinitionsModel.Companion.createModel(manager.getAllDefinitions(), settings);
+
+        panelScriptDefinitionsChooser.setLayout(new BorderLayout());
+        TableView<ModelDescriptor> table = new TableView<>(model);
+        panelScriptDefinitionsChooser.add(
+                ToolbarDecorator.createDecorator(table)
+                        .disableAddAction()
+                        .disableRemoveAction()
+                        .createPanel()
+        );
+
+        return root;
+    }
+
+    @Override
+    public boolean isModified() {
+        return isScriptDefinitionsChanged();
+    }
+
+    @Override
+    public void apply() {
+        if (isScriptDefinitionsChanged()) {
+            for (ModelDescriptor item : model.getItems()) {
+                ScriptDefinition definition = item.getDefinition();
+                int order = model.getItems().indexOf(item);
+                settings.setOrder(definition, order);
+                settings.setEnabled(definition, item.isEnabled());
+                settings.setAutoReloadConfigurations(definition, item.getAutoReloadConfigurations());
+            }
+
+            manager.reorderScriptDefinitions();
+        }
+    }
+
+    @Override
+    public void reset() {
+        model.setDefinitions(manager.getAllDefinitions(), settings);
+    }
+
+    private boolean isScriptDefinitionsChanged() {
+        for (ModelDescriptor item : model.getItems()) {
+            if (settings.isScriptDefinitionEnabled(item.getDefinition()) != item.isEnabled()) {
+                return true;
+            }
+            if (settings.autoReloadConfigurations(item.getDefinition()) != item.getAutoReloadConfigurations()) {
+                return true;
+            }
+        }
+        return !model.getDefinitions().equals(manager.getAllDefinitions());
+    }
+
+
+    @Override
+    @Nls
+    public String getDisplayName() {
+        return KotlinBundle.message("script.name.kotlin.scripting");
+    }
+
+    @Override
+    @NotNull
+    public String getId() {
+        return ID;
+    }
+}