Function scanAndRenderDirectory

renderer.js:11814–12267

(directoryPath, background = false, isStlHomeScan = false)

        fileSelected = true;
        
        const file = e.target.files[0];
        
        // Clean up immediately, even if no file was selected
        if (activeImageInput === fileInput) {
          activeImageInput = null;
        }
        if (fileInput.parentNode) {
          fileInput.parentNode.removeChild(fileInput);
        }
        
        if (!file) {
          return; // User cancelled
        }
        
        try {
          // Read file as data URL
          const reader = new FileReader();
          reader.onload = async (event) => {
            try {
              const dataUrl = event.target.result;
              // Add thumbnail to each selected model (multi-edit: same image to all)
              for (const filePath of paths) {
                await window.electron.addThumbnail(filePath, dataUrl);
              }
              // Server-side handler sends thumbnail-added per model to refresh the UI
            } catch (error) {
              console.error('Error adding image:', error);
              alert('Error adding image: ' + error.message);
            }
          };
          reader.onerror = (error) => {
            console.error('Error reading file:', error);
            alert('Error reading image file');
          };
          reader.readAsDataURL(file);
        } catch (error) {
          console.error('Error processing image file:', error);
          alert('Error processing image: ' + error.message);
        }
      });
      
      // Clean up if user cancels (no file selected after a delay)
      setTimeout(() => {
        if (!fileSelected && activeImageInput === fileInput) {
          activeImageInput = null;
          if (fileInput.parentNode) {
            fileInput.parentNode.removeChild(fileInput);
          }
        }
      }, 1000);
      
      // Trigger file input dialog
      document.body.appendChild(fileInput);
      fileInput.click();
    } catch (error) {
      console.error('Error setting up image file input:', error);
      alert('Error: Could not open file dialog');
      activeImageInput = null;