View difference between Paste ID: k3YwMs8j and vxRKmSX3

 // 修改 Viewer.js
 buildContextMenu() {
 
   	// ... other code snippets
-
+
-    const callBack = (key) => {
+    this.container.addEventListener('contextmenu', () => {
-      let objects, dbId;
+      const hideSelectedMenuItem1 = document.querySelector('#contextMenu li[data-key="hide-selected"]');
       const hideSelectedMenuItem2 = document.querySelector('#contextMenu li[data-key="isolate-selected"]');
-      switch (key) {
+
-        case 'hide-selected':
+      if (this.selection.length > 0) {
-          if (this.selection.length <= 0) return;
+        hideSelectedMenuItem1.style.display = 'block';
         hideSelectedMenuItem2.style.display = 'block';
-          dbId = this.selection[0];
+      } else {
-          this.clearSelection();
+        hideSelectedMenuItem1.style.display = 'none';
         hideSelectedMenuItem2.style.display = 'none';
-          objects = this.models.map(m => m.getObjectById(dbId));
+
-          if (!objects || objects.length <= 0) return;
+    });
 
-          objects.forEach(obj => obj.visible = false);
+    document.addEventListener('keydown', (event) => {
       if ((event.key == 'Escape' || event.key == 'Esc' || event.keyCode == 27)) {
-          break;
+        event.preventDefault();
-        case 'isolate-selected':
+
-          if (this.selection.length <= 0) return;
+        this.clearSelection();
 
-          dbId = this.selection[0];
+        return false;
-          this.clearSelection();
+
     });
-          this.models.forEach(m => {
+  }