Partial touch on a widget view?

marclava · April 5, 2023, 12:43pm

I found a better solution. No change is required in Python (no need to override _repr_mimebundle), and as usual traits must be defined with .tag(sync=True) to ensure sync from backend to browser.

In Javascript, to send specific changes to the backend, I use:
this.model.sync('patch', this.model, {'attrs': {key:value}});
(the ‘attrs’ dict can have multiple key:value pairs)

For this solution to work, there should be no use of .touch() or model.save() in Javascript.

The sync method is defined here:

github.com

jupyter-widgets/ipywidgets/blob/511663a56324cea5324f49a65ebe25e2f1b04d87/packages/base/src/widget.ts#L466


      
              );
            }
          
          
  // If this ended a top-level call to .set, then reset _buffered_state_diff_synced
            if ((this as any)._changing === false) {
              this._buffered_state_diff_synced = {};
            }
            return return_value;
          }
          
          
/**
           * Handle sync to the back-end.  Called when a model.save() is called.
           *
           * Make sure a comm exists.
           *
           * Parameters
           * ----------
           * method : create, update, patch, delete, read
           *   create/update always send the full attribute set
           *   patch - only send attributes listed in options.attrs, and if we
           *   are queuing up messages, combine with previous messages that have

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Partial touch on a widget view?

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