X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/159c84a15b7739c02dc4bc0d9626b515e8426b92..780e83dab0e48e6fbcd156d55c36122390b4f258:/src/models/tree.ts

diff --git a/src/models/tree.ts b/src/models/tree.ts
index c7713cbcf0..996f98a465 100644
--- a/src/models/tree.ts
+++ b/src/models/tree.ts
@@ -14,6 +14,7 @@ export interface TreeNode<T = any> {
     parent: string;
     active: boolean;
     selected: boolean;
+    initialState?: boolean;
     expanded: boolean;
     status: TreeNodeStatus;
 }
@@ -74,6 +75,7 @@ export const setNodeValueWith = <T>(mapFn: (value: T) => T) => (id: string) => (
 export const mapTreeValues = <T, R>(mapFn: (value: T) => R) => (tree: Tree<T>): Tree<R> =>
     getNodeDescendantsIds('')(tree)
         .map(id => getNode(id)(tree))
+        .filter(node => !!node)
         .map(mapNodeValue(mapFn))
         .reduce((newTree, node) => setNode(node)(newTree), createTree<R>());
 
@@ -196,6 +198,19 @@ export const initTreeNode = <T>(data: Pick<TreeNode<T>, 'id' | 'value'> & { pare
     ...data,
 });
 
+export const getTreeDirty = (id: string) => <T>(tree: Tree<T>): boolean => {
+    const node = getNode(id)(tree);
+    const children = getNodeDescendants(id)(tree);
+    return (node
+            && node.initialState !== undefined
+            && node.selected !== node.initialState
+            )
+            || children.some(child =>
+                child.initialState !== undefined
+                && child.selected !== child.initialState
+            );
+}
+
 const toggleDescendantsSelection = (id: string) => <T>(tree: Tree<T>) => {
     const node = getNode(id)(tree);
     if (node) {
@@ -227,7 +242,6 @@ const toggleParentNodeSelection = (id: string) => <T>(tree: Tree<T>) => {
     return tree;
 };
 
-
 const mapNodeValue = <T, R>(mapFn: (value: T) => R) => (node: TreeNode<T>): TreeNode<R> =>
     ({ ...node, value: mapFn(node.value) });