threejs-viewer-24

// 修改 Viewer.js
buildContextMenu() {

    // ... other code snippets

    this.container.addEventListener('contextmenu', () => {
      const hideSelectedMenuItem1 = document.querySelector('#contextMenu li[data-key="hide-selected"]');
      const hideSelectedMenuItem2 = document.querySelector('#contextMenu li[data-key="isolate-selected"]');

      if (this.selection.length > 0) {
        hideSelectedMenuItem1.style.display = 'block';
        hideSelectedMenuItem2.style.display = 'block';
      } else {
        hideSelectedMenuItem1.style.display = 'none';
        hideSelectedMenuItem2.style.display = 'none';
      }
    });

    document.addEventListener('keydown', (event) => {
      if ((event.key == 'Escape' || event.key == 'Esc' || event.keyCode == 27)) {
        event.preventDefault();

        this.clearSelection();

        return false;
      }
    });
  }