Add new config option for collections

src/content-handlers/iiif/extensions/config/ContentLeftPanel.ts

@@ -19,8 +19,10 @@ type ContentLeftPanelOptions = ExpandPanelOptions & {
   branchNodesSelectable: boolean;
   /** Determines if tree is the default view */
   defaultToTreeEnabled: boolean;
-  /** Number of items to default to tree view */
+  /** Number of items to default to tree view (when defaultToTreeEnabled = true; defaults to 0) */
   defaultToTreeIfGreaterThan: number;
+   /** Determines if collection should default to tree view (even if defaultToTreeEnabled = false) */
+  defaultToTreeIfCollection: boolean;
   /** Number of characters to elide at */
   elideCount: number;
   /** Threshold for gallery thumb chunked resizing */

src/content-handlers/iiif/extensions/uv-av-extension/config/config.json

@@ -69,6 +69,7 @@
         "branchNodesSelectable": true,
         "defaultToTreeEnabled": false,
         "defaultToTreeIfGreaterThan": 0,
+        "defaultToTreeIfCollection": true,
         "elideCount": 40,
         "expandFullEnabled": true,
         "galleryThumbChunkedResizingThreshold": 400,

src/content-handlers/iiif/extensions/uv-openseadragon-extension/config/config.json

@@ -72,6 +72,7 @@
         "branchNodesSelectable": false,
         "defaultToTreeEnabled": false,
         "defaultToTreeIfGreaterThan": 0,
+        "defaultToTreeIfCollection": true,
         "elideCount": 40,
         "expandFullEnabled": true,
         "galleryThumbChunkedResizingThreshold": 400,

src/content-handlers/iiif/modules/uv-contentleftpanel-module/ContentLeftPanel.ts

@@ -283,11 +283,7 @@ export class ContentLeftPanel extends LeftPanel<ContentLeftPanelConfig> {
     if (!treeData) {
       return;
     }
-
-    if (
-      this.isCollection() &&
-      this.extension.helper.treeHasNavDates(treeData)
-    ) {
+    if (!this.defaultToThumbsView()) {
       this.$treeViewOptions.show();
     } else {
       this.$treeViewOptions.hide();
@@ -616,9 +612,17 @@ export class ContentLeftPanel extends LeftPanel<ContentLeftPanelConfig> {
     );
     const defaultToTreeIfGreaterThan: number =
       this.config.options.defaultToTreeIfGreaterThan || 0;
-
+    const defaultToTreeIfCollection: boolean = Bools.getBool(
+      this.config.options.defaultToTreeIfCollection,
+      false
+    );
+
     const treeData: TreeNode | null = this.getTree();
-
+
+    if (this.isCollection() && (defaultToTreeIfCollection || (treeData && this.extension.helper.treeHasNavDates(treeData)))) {
+      return false;
+    }
+
     if (defaultToTreeEnabled) {
       if (treeData && treeData.nodes.length > defaultToTreeIfGreaterThan) {
         return false;