关于在FormBuilder中升级TinyMCE至5版本的问题求助

I’ve run into the exact same problem when upgrading TinyMCE from v4 to v5 in FormBuilder—multiple editor instances breaking unexpectedly, even across different hosting setups. Here are the actionable fixes that resolved the issue for me:

1. Update FormBuilder’s TinyMCE Configuration for v5 Compatibility #

TinyMCE 5 deprecated several v4 APIs (like the modern theme) and adjusted default behaviors. Override FormBuilder’s default TinyMCE settings to match v5 requirements when initializing the builder:

$(document).ready(function() {
  $('#builder').formBuilder({
    tinymceOptions: {
      theme: 'silver', // Replaces v4's outdated 'modern' theme
      toolbar_mode: 'floating', // Adjust toolbar behavior to align with v5's defaults
      plugins: 'advlist autolink lists link image charmap preview anchor', // Stick to v5-compatible plugins
      menubar: false, // Optional: Match v4's minimal UI if you prefer it
    }
  });
});

2. Resolve Instance Conflicts with Proper Cleanup #

FormBuilder’s default logic might not handle multiple editor instances correctly in v5. Add cleanup logic to ensure existing TinyMCE instances are removed before initializing new ones:

// Insert this snippet where FormBuilder creates TinyMCE editors
const editorId = 'target-textarea-id';
if (tinymce.get(editorId)) {
  tinymce.remove(editorId); // Wipe existing instance to avoid conflicts
}
// Initialize the new v5 editor
tinymce.init({
  selector: `#${editorId}`,
  ...yourV5ConfigOptions
});

3. Ensure Proper Load Order #

TinyMCE 5 handles asynchronous loading differently than v4. Wait for TinyMCE to fully initialize before starting FormBuilder:

tinymce.ready(function() {
  // Initialize FormBuilder only after TinyMCE is fully loaded
  $('#builder').formBuilder({
    tinymceOptions: { /* your v5 config */ }
  });
});

4. Verify Self-Hosted TinyMCE Resources #

If using a self-hosted v5 build, double-check that all required files are present and paths are correct:

• Confirm the skins folder (with v5’s default skin) is in the same directory as tinymce.min.js
• Ensure theme folders (like themes/silver) are included and accessible
• Avoid missing plugin files—v5 bundles some plugins differently than v4, so cross-reference your plugin list with v5’s documentation

内容的提问来源于stack exchange，提问作者Tirthesh Trivedi