Language Server Protocol Rename implementation (#6615)

* #1806 add service and UI for rename feature
Signed-off-by: Yevhen Vydolob <evidolob@codenvy.com>

ide/che-core-ide-api/src/main/java/org/eclipse/che/ide/api/editor/texteditor/TextEditor.java

@@ -11,13 +11,15 @@
 package org.eclipse.che.ide.api.editor.texteditor;
 
 import javax.validation.constraints.NotNull;
+import org.eclipse.che.commons.annotation.Nullable;
 import org.eclipse.che.ide.api.editor.EditorPartPresenter;
 import org.eclipse.che.ide.api.editor.document.Document;
 import org.eclipse.che.ide.api.editor.editorconfig.EditorUpdateAction;
 import org.eclipse.che.ide.api.editor.editorconfig.TextEditorConfiguration;
 import org.eclipse.che.ide.api.editor.keymap.KeyBinding;
 import org.eclipse.che.ide.api.editor.position.PositionConverter;
 import org.eclipse.che.ide.api.editor.text.LinearRange;
+import org.eclipse.che.ide.api.editor.text.Position;
 import org.eclipse.che.ide.api.editor.text.TextPosition;
 import org.eclipse.che.ide.api.editor.text.TextRange;
 
@@ -175,4 +177,13 @@ public interface TextEditor extends EditorPartPresenter {
    * @param action the action to add
    */
   void addEditorUpdateAction(EditorUpdateAction action);
+
+  /**
+   * Get word position under offset.
+   *
+   * @param offset the offset for look for a word
+   * @return the word position
+   */
+  @Nullable
+  Position getWordAtOffset(int offset);
 }

ide/che-core-ide-api/src/main/java/org/eclipse/che/ide/api/parts/Perspective.java

@@ -113,4 +113,11 @@ void addPart(
    * @param container container in which need expose view
    */
   void go(@NotNull AcceptsOneWidget container);
+
+  /**
+   * Get current active part
+   *
+   * @return the active part
+   */
+  PartPresenter getActivePart();
 }

ide/che-core-ide-api/src/main/java/org/eclipse/che/ide/api/parts/WorkspaceAgent.java

@@ -22,13 +22,6 @@
 @SDK(title = "ide.api.ui.workspace")
 public interface WorkspaceAgent {
 
-  /**
-   * Activate given part
-   *
-   * @param part
-   */
-  void setActivePart(PartPresenter part);
-
   void setActivePart(@NotNull PartPresenter part, PartStackType type);
 
   /**
@@ -69,4 +62,18 @@ public interface WorkspaceAgent {
    * @return the part stack found, else null
    */
   PartStack getPartStack(PartStackType type);
+
+  /**
+   * Get current active part
+   *
+   * @return the active part
+   */
+  PartPresenter getActivePart();
+
+  /**
+   * Activate given part
+   *
+   * @param part
+   */
+  void setActivePart(PartPresenter part);
 }

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/actions/RenameItemAction.java

@@ -40,6 +40,7 @@
 import org.eclipse.che.ide.api.editor.EditorAgent;
 import org.eclipse.che.ide.api.editor.EditorPartPresenter;
 import org.eclipse.che.ide.api.notification.NotificationManager;
+import org.eclipse.che.ide.api.parts.WorkspaceAgent;
 import org.eclipse.che.ide.api.resources.RenamingSupport;
 import org.eclipse.che.ide.api.resources.Resource;
 import org.eclipse.che.ide.resource.Path;
@@ -60,6 +61,7 @@ public class RenameItemAction extends AbstractPerspectiveAction {
   private final NotificationManager notificationManager;
   private final DialogFactory dialogFactory;
   private final AppContext appContext;
+  private final WorkspaceAgent workspaceAgent;
 
   @Inject
   public RenameItemAction(
@@ -69,7 +71,8 @@ public RenameItemAction(
       EditorAgent editorAgent,
       NotificationManager notificationManager,
       DialogFactory dialogFactory,
-      AppContext appContext) {
+      AppContext appContext,
+      WorkspaceAgent workspaceAgent) {
     super(
         singletonList(PROJECT_PERSPECTIVE_ID),
         localization.renameItemActionText(),
@@ -82,6 +85,7 @@ public RenameItemAction(
     this.notificationManager = notificationManager;
     this.dialogFactory = dialogFactory;
     this.appContext = appContext;
+    this.workspaceAgent = workspaceAgent;
   }
 
   /** {@inheritDoc} */
@@ -115,7 +119,7 @@ public void actionPerformed(ActionEvent e) {
         new InputCallback() {
           @Override
           public void accepted(final String value) {
-            //we shouldn't perform renaming file with the same name
+            // we shouldn't perform renaming file with the same name
             if (!value.trim().equals(resourceName)) {
 
               closeRelatedEditors(resource);
@@ -165,6 +169,13 @@ private void closeRelatedEditors(Resource resource) {
   /** {@inheritDoc} */
   @Override
   public void updateInPerspective(@NotNull ActionEvent e) {
+
+    if (workspaceAgent.getActivePart() == null
+        || workspaceAgent.getActivePart() instanceof EditorPartPresenter) {
+      e.getPresentation().setEnabledAndVisible(false);
+      return;
+    }
+
     final Resource[] resources = appContext.getResources();
     e.getPresentation().setVisible(true);
 

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/processes/panel/ProcessesPanelViewImpl.java

@@ -13,11 +13,6 @@
 import static org.eclipse.che.ide.processes.ProcessTreeNode.ProcessNodeType.MACHINE_NODE;
 
 import com.google.gwt.core.client.Scheduler;
-import com.google.gwt.dom.client.DivElement;
-import com.google.gwt.dom.client.Document;
-import com.google.gwt.dom.client.Element;
-import com.google.gwt.dom.client.Node;
-import com.google.gwt.dom.client.NodeList;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.user.client.ui.FlowPanel;
@@ -37,13 +32,13 @@
 import org.eclipse.che.ide.CoreLocalizationConstant;
 import org.eclipse.che.ide.api.parts.PartStackUIResources;
 import org.eclipse.che.ide.api.parts.base.BaseView;
-import org.eclipse.che.ide.api.theme.Style;
 import org.eclipse.che.ide.machine.MachineResources;
 import org.eclipse.che.ide.processes.ProcessDataAdapter;
 import org.eclipse.che.ide.processes.ProcessTreeNode;
 import org.eclipse.che.ide.processes.ProcessTreeRenderer;
 import org.eclipse.che.ide.processes.StopProcessHandler;
 import org.eclipse.che.ide.terminal.TerminalOptionsJso;
+import org.eclipse.che.ide.ui.SplitterFancyUtil;
 import org.eclipse.che.ide.ui.multisplitpanel.SubPanel;
 import org.eclipse.che.ide.ui.multisplitpanel.SubPanelFactory;
 import org.eclipse.che.ide.ui.multisplitpanel.WidgetToShow;
@@ -98,7 +93,8 @@ public ProcessesPanelViewImpl(
       ProcessDataAdapter adapter,
       ProcessesPartViewImplUiBinder uiBinder,
       SubPanelFactory subPanelFactory,
-      CoreLocalizationConstant localizationConstants) {
+      CoreLocalizationConstant localizationConstants,
+      SplitterFancyUtil splitterFancyUtil) {
     super(partStackUIResources);
     setTitle(localizationConstants.viewProcessesTitle());
     this.machineResources = machineResources;
@@ -190,65 +186,11 @@ public void onKeyboard(KeyboardEvent event) {}
     splitLayoutPanel.add(subPanel.getView());
     focusedSubPanel = subPanel;
 
-    tuneSplitter();
+    splitterFancyUtil.tuneSplitter(splitLayoutPanel);
     splitLayoutPanel.setWidgetHidden(navigationPanel, true);
     navigationPanelVisible = false;
   }
 
-  /** Improves splitter visibility. */
-  private void tuneSplitter() {
-    NodeList<Node> nodes = splitLayoutPanel.getElement().getChildNodes();
-    for (int i = 0; i < nodes.getLength(); i++) {
-      Node node = nodes.getItem(i);
-      if (node.hasChildNodes()) {
-        com.google.gwt.dom.client.Element el = node.getFirstChild().cast();
-        if ("gwt-SplitLayoutPanel-HDragger".equals(el.getClassName())) {
-          tuneSplitter(el);
-          return;
-        }
-      }
-    }
-  }
-
-  /**
-   * Tunes splitter. Makes it wider and adds double border to seem rich.
-   *
-   * @param el element to tune
-   */
-  private void tuneSplitter(Element el) {
-    /** Add Z-Index to move the splitter on the top and make content visible */
-    el.getParentElement().getStyle().setProperty("zIndex", "1000");
-    el.getParentElement().getStyle().setProperty("overflow", "visible");
-
-    /** Tune splitter catch panel */
-    el.getStyle().setProperty("boxSizing", "border-box");
-    el.getStyle().setProperty("width", "5px");
-    el.getStyle().setProperty("overflow", "hidden");
-    el.getStyle().setProperty("marginLeft", "-3px");
-    el.getStyle().setProperty("backgroundColor", "transparent");
-
-    /** Add small border */
-    DivElement smallBorder = Document.get().createDivElement();
-    smallBorder.getStyle().setProperty("position", "absolute");
-    smallBorder.getStyle().setProperty("width", "1px");
-    smallBorder.getStyle().setProperty("height", "100%");
-    smallBorder.getStyle().setProperty("left", "3px");
-    smallBorder.getStyle().setProperty("top", "0px");
-    smallBorder.getStyle().setProperty("backgroundColor", Style.getSplitterSmallBorderColor());
-    el.appendChild(smallBorder);
-
-    /** Add large border */
-    DivElement largeBorder = Document.get().createDivElement();
-    largeBorder.getStyle().setProperty("position", "absolute");
-    largeBorder.getStyle().setProperty("width", "2px");
-    largeBorder.getStyle().setProperty("height", "100%");
-    largeBorder.getStyle().setProperty("left", "1px");
-    largeBorder.getStyle().setProperty("top", "0px");
-    largeBorder.getStyle().setProperty("opacity", "0.4");
-    largeBorder.getStyle().setProperty("backgroundColor", Style.getSplitterLargeBorderColor());
-    el.appendChild(largeBorder);
-  }
-
   @Override
   public void addWidget(
       final String processId,

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/workspace/WorkspacePresenter.java

@@ -157,6 +157,11 @@ public PartStack getPartStack(PartStackType type) {
     return activePerspective.getPartStack(type);
   }
 
+  @Override
+  public PartPresenter getActivePart() {
+    return activePerspective.getActivePart();
+  }
+
   @Override
   public JsonObject getState() {
     JsonObject state = Json.createObject();

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/workspace/perspectives/general/AbstractPerspective.java

@@ -310,6 +310,11 @@ public PartStack getPartStack(@NotNull PartStackType type) {
     return partStacks.get(type);
   }
 
+  @Override
+  public PartPresenter getActivePart() {
+    return activePart;
+  }
+
   @Override
   public JsonObject getState() {
     JsonObject state = Json.createObject();

ide/che-core-ide-app/src/test/java/org/eclipse/che/ide/actions/RenameItemActionTest.java

@@ -11,6 +11,7 @@
 package org.eclipse.che.ide.actions;
 
 import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -24,7 +25,10 @@
 import org.eclipse.che.ide.api.app.AppContext;
 import org.eclipse.che.ide.api.dialogs.DialogFactory;
 import org.eclipse.che.ide.api.editor.EditorAgent;
+import org.eclipse.che.ide.api.editor.EditorPartPresenter;
 import org.eclipse.che.ide.api.notification.NotificationManager;
+import org.eclipse.che.ide.api.parts.PartPresenter;
+import org.eclipse.che.ide.api.parts.WorkspaceAgent;
 import org.eclipse.che.ide.api.project.ProjectServiceClient;
 import org.eclipse.che.ide.api.resources.RenamingSupport;
 import org.eclipse.che.ide.api.resources.Resource;
@@ -54,6 +58,9 @@ public class RenameItemActionTest {
   @Mock private ActionEvent event;
   @Mock private Presentation presentation;
 
+  @Mock private WorkspaceAgent workspaceAgent;
+  @Mock private PartPresenter partPresenter;
+
   private Resource[] selectedResources = new Resource[1];
   private Set<RenamingSupport> renamingSupport = new HashSet<>();
 
@@ -63,6 +70,7 @@ public void setUp() throws Exception {
 
     when(appContext.getResources()).thenReturn(selectedResources);
     when(event.getPresentation()).thenReturn(presentation);
+    when(workspaceAgent.getActivePart()).thenReturn(partPresenter);
   }
 
   @Test
@@ -102,7 +110,8 @@ public void actionShouldBeDisabledIfSomeRenameValidatorForbidsRenameOperation()
             editorAgent,
             notificationManager,
             dialogFactory,
-            appContext);
+            appContext,
+            workspaceAgent);
     action.updateInPerspective(event);
 
     verify(presentation).setVisible(true);
@@ -122,10 +131,20 @@ public void actionShouldBeEnabled() throws Exception {
             editorAgent,
             notificationManager,
             dialogFactory,
-            appContext);
+            appContext,
+            workspaceAgent);
     action.updateInPerspective(event);
 
     verify(presentation).setVisible(true);
     verify(presentation).setEnabled(true);
   }
+
+  @Test
+  public void actionShouldBeDisabledIfEditorActive() {
+    when(workspaceAgent.getActivePart()).thenReturn(mock(EditorPartPresenter.class));
+
+    action.updateInPerspective(event);
+
+    verify(presentation).setEnabledAndVisible(false);
+  }
 }

ide/che-core-ide-ui/pom.xml

@@ -37,6 +37,10 @@
             <groupId>com.google.inject.extensions</groupId>
             <artifactId>guice-assistedinject</artifactId>
         </dependency>
+        <dependency>
+            <groupId>javax.inject</groupId>
+            <artifactId>javax.inject</artifactId>
+        </dependency>
         <dependency>
             <groupId>javax.validation</groupId>
             <artifactId>validation-api</artifactId>