Add prop for controlling tree item indentation

Feature #14258

Arvados-DCO-1.1-Signed-off-by: Michal Klobukowski <michal.klobukowski@contractors.roche.com>

diff --git a/src/components/tree/tree.tsx b/src/components/tree/tree.tsx
index 4cbefbd2b0eb0cbb1a0b9cc8d5927cc66a05e90c..cccb0a987d19a7487cf7626f27c88665b5d70405 100644 (file)
--- a/src/components/tree/tree.tsx
+++ b/src/components/tree/tree.tsx
@@ -88,6 +88,7 @@ export interface TreeProps<T> {
     onContextMenu: (event: React.MouseEvent<HTMLElement>, item: TreeItem<T>) => void;
     render: (item: TreeItem<T>, level?: number) => ReactElement<{}>;
     showSelection?: boolean | ((item: TreeItem<T>) => boolean);
+    levelIndentation?: number;
     toggleItemActive: (event: React.MouseEvent<HTMLElement>, item: TreeItem<T>) => void;
     toggleItemOpen: (event: React.MouseEvent<HTMLElement>, item: TreeItem<T>) => void;
     toggleItemSelection?: (event: React.MouseEvent<HTMLElement>, item: TreeItem<T>) => void;
@@ -103,10 +104,12 @@ export const Tree = withStyles(styles)(
                 ? this.props.showSelection
                 : () => this.props.showSelection ? true : false;
 
+            const { levelIndentation = 20 } = this.props;
+
             return <List component="div" className={list}>
                 {items && items.map((it: TreeItem<T>, idx: number) =>
                     <div key={`item/${level}/${idx}`}>
-                        <ListItem button className={listItem} style={{ paddingLeft: (level + 1) * 20 }}
+                        <ListItem button className={listItem} style={{ paddingLeft: (level + 1) * levelIndentation }}
                             disableRipple={disableRipple}
                             onClick={event => toggleItemActive(event, it)}
                             onContextMenu={this.handleRowContextMenu(it)}>