Add tooltip functionality to node titles

CHANGELOG.md

@@ -7,7 +7,7 @@ First release.
 > This section will be removed after the beta phase. <br>
 > Note that semantic versioning rules are not strictly followed during this phase.
 
-- v0.8.4: Fix #90: Tooltip is not shown.
+- v0.8.4: Fix #90: Add tooltip functionality to node titles
 
 - v0.8.3: Fix #84: After editing a node title a javascript error
   "Cannot read properties of null (reading '\_render')" occurs (Chromium).

src/wb_node.ts

@@ -34,6 +34,7 @@ import {
   SetStatusOptions,
   SortCallback,
   SourceType,
+  TooltipOption,
   TristateType,
   WbNodeData,
 } from "./types";
@@ -2626,6 +2627,12 @@ export class WunderbaumNode {
     // this.triggerModify("rename"); // TODO
   }
 
+  /** Set the node tooltip. */
+  setTooltip(tooltip: TooltipOption): void {
+    this.tooltip = tooltip;
+    this.update();
+  }
+
   _sortChildren(cmp: SortCallback, deep: boolean): void {
     const cl = this.children;
 

test/playground.js

@@ -24,9 +24,9 @@ const tree = new Wunderbaum({
   debugLevel: 4,
   // minExpandLevel: 1,
   emptyChildListExpandable: true,
-  tooltip: (e) => {
-    return `${e.node.title} (${e.node.children?.length || 0})`;
-  },
+  // tooltip: (e) => {
+  //   return `${e.node.title} (${e.node.children?.length || 0})`;
+  // },
   // autoCollapse: true,
   header: true, //"Playground",
   // navigationModeOption: "cell",
@@ -237,6 +237,7 @@ const tree = new Wunderbaum({
       edit: true,
       focusTree: true,
     });
+    e.tree.findFirst("Observe")?.setTooltip("This is a tooltip");
   },
 });
 console.log(`Created  ${tree}`);