treedatasource: implement getParentOf

qooxdoo · Apr 11, 2024 · 0eff6b0 · 0eff6b0
1 parent affc984
commit 0eff6b0
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/source/class/qxl/datagrid/source/tree/TreeDataSource.js b/source/class/qxl/datagrid/source/tree/TreeDataSource.js
@@ -122,6 +122,7 @@ qx.Class.define("qxl.datagrid.source.tree.TreeDataSource", {
         let childInspector = this.getNodeInspectorFactory()(node);
 
         childRowMeta.canHaveChildren = childInspector.canHaveChildren(node);
+        childRowMeta.parentMeta = rowMeta;
         this.__rowMetaDatas.push(childRowMeta);
         this.__rowMetaDataByNode[node.toHashCode()] = childRowMeta;
         rowMeta.childRowMetas.push(childRowMeta);
@@ -228,6 +229,7 @@ qx.Class.define("qxl.datagrid.source.tree.TreeDataSource", {
         let childRowMeta = this.__createRowMetaData(childNode, rowMetadata.level + 1);
         childRowMeta.canHaveChildren = childInspector.canHaveChildren(childNode);
         childRowMetas.push(childRowMeta);
+        childRowMeta.parentMeta = rowMetadata;
         this.__rowMetaDataByNode[childNode.toHashCode()] = childRowMeta;
       }
       let before = this.__rowMetaDatas.slice(0, parentRowIndex + 1);
@@ -434,6 +436,20 @@ qx.Class.define("qxl.datagrid.source.tree.TreeDataSource", {
       return row.node;
     },
 
+    /**
+     *
+     * @param {qx.core.Object} node
+     * @returns {qx.core.Object}
+     */
+    getParentOf(node) {
+      let meta = this.__rowMetaDataByNode[node.toHashCode()];
+      if (!meta) {
+        throw new Error("Cannot get parent of node. Node is not displayed in tree.");
+      }
+
+      return meta.parentMeta?.node ?? null;
+    },
+
     /**
      * @Override
      */