feat: select treenode on snyk showdocument [IDE-957]

plugin/src/main/java/io/snyk/eclipse/plugin/html/BaseHtmlProvider.java

@@ -6,7 +6,6 @@
 
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.resource.ColorRegistry;
-import org.eclipse.jface.resource.FontRegistry;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.RGB;
@@ -142,8 +141,10 @@ private String getScaledFontSize() {
 		} catch (IllegalStateException e) {
 			defaultHeight = 13;
 		}
-		// Language server HTML assumes a base font size of 10px. The default Eclipse font size is 17px (13pt), so we
-		// apply a scaling factor here. This ensures that HTML fonts scale correctly if the user changes the text size.
+		// Language server HTML assumes a base font size of 10px. The default Eclipse
+		// font size is 17px (13pt), so we
+		// apply a scaling factor here. This ensures that HTML fonts scale correctly if
+		// the user changes the text size.
 		int scaledHeight = (int) (defaultHeight / 1.7);
 		return scaledHeight + "pt";
 	}

plugin/src/main/java/io/snyk/eclipse/plugin/views/snyktoolview/ISnykToolView.java

@@ -2,6 +2,8 @@
 
 import org.eclipse.jface.viewers.TreeViewer;
 
+import io.snyk.languageserver.protocolextension.messageObjects.scanResults.Issue;
+
 /**
  * This interface captures the externally used methods with the tool window.
  * Having it, should allow for easier testing of the business logic apart from
@@ -125,4 +127,6 @@ static String getPlural(long count) {
 	 * @return
 	 */
 	abstract void disableDelta();
+
+	abstract void selectTreeNode(Issue issue);
 }

plugin/src/main/java/io/snyk/eclipse/plugin/views/snyktoolview/SnykToolView.java

@@ -21,6 +21,7 @@
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeNode;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.lsp4e.LSPEclipseUtils;
@@ -42,6 +43,7 @@
 import org.eclipse.ui.menus.CommandContributionItemParameter;
 import org.eclipse.ui.part.ViewPart;
 
+import io.snyk.eclipse.plugin.domain.ProductConstants;
 import io.snyk.eclipse.plugin.preferences.Preferences;
 import io.snyk.eclipse.plugin.properties.FolderConfigs;
 import io.snyk.eclipse.plugin.utils.ResourceUtils;
@@ -477,4 +479,31 @@ protected void outputCommandResult(Object result) {
 		}
 	}
 
+	@Override
+	public void selectTreeNode(Issue issue) {
+		ProductTreeNode productNode = getProductNode(ProductConstants.DISPLAYED_CODE_SECURITY, issue.filePath());
+		selectTreenodeForIssue((TreeNode) productNode, issue);
+	}
+
+	private void selectTreenodeForIssue(TreeNode currentParent, Issue issue) {
+		for (Object child : currentParent.getChildren()) {
+			TreeNode childNode = (TreeNode) child;
+
+			if (childNode instanceof IssueTreeNode && ((IssueTreeNode) childNode).getIssue().id().equals(issue.id())) {
+				updateSelection((IssueTreeNode) childNode);
+				return; // Exit the function as we've found a match
+			}
+
+			if (childNode.getChildren() != null && childNode.getChildren().length != 0) {
+				selectTreenodeForIssue(childNode, issue);
+			}
+		}
+	}
+
+	private void updateSelection(IssueTreeNode issueTreeNode) {
+		Display.getDefault().asyncExec(() -> {
+			IStructuredSelection selection = new StructuredSelection(issueTreeNode);
+			treeViewer.setSelection(selection, true);
+		});
+	}
 }

plugin/src/main/java/io/snyk/languageserver/LsConstants.java

@@ -26,4 +26,5 @@ private LsConstants() {
 	public static final String SNYK_PUBLISH_DIAGNOSTICS_316 = "$/snyk.publishDiagnostics316";
 	public static final String SNYK_FOLDER_CONFIG = "$/snyk.folderConfigs";
 	public static final String SNYK_SCAN_SUMMARY = "$/snyk.scanSummary";
+	public static final String SNYK_SHOW_DOCUMENT = "$/snyk.showDocument";
 }