In [47]:

    

from __future__ import print_function # For py 2.7 compat

from IPython.html import widgets # Widget definitions
from IPython.display import display # Used to display widgets in the notebook
from IPython.utils.traitlets import Unicode # Used to declare attributes of our widget


    

In [48]:

    

class DateWidget(widgets.DOMWidget):
    _view_name = Unicode('DatePickerView', sync=True)
    value = Unicode(sync=True)


    

In [49]:

    

%%javascript


require(["widgets/js/widget"], function(WidgetManager){
    
    // Define the DatePickerView
    var DatePickerView = IPython.DOMWidgetView.extend({
        render: function(){
            // Create the date picker control.
            this.$date = $('<input />')
                .attr('type', 'date')
                .appendTo(this.$el);
        },
        
        update: function() {
            
            // Set the value of the date control and then call base.
            this.$date.val(this.model.get('value')); // ISO format "YYYY-MM-DDTHH:mm:ss.sssZ" is required
            return DatePickerView.__super__.update.apply(this);
        },
        
        // Tell Backbone to listen to the change event of input controls (which the HTML date picker is)
        events: {"change": "handle_date_change"},
        
        // Callback for when the date is changed.
        handle_date_change: function(event) {
            this.model.set('value', this.$date.val());
            this.touch();
        },
    });
    
    // Register the DatePickerView with the widget manager.
    WidgetManager.register_widget_view('DatePickerView', DatePickerView);
});


    

In [50]:

    

my_widget = DateWidget()
display(my_widget)


    

In [51]:

    

my_widget


    

In [52]:

    

my_widget.value


    

    
Out[52]:





u''

In [53]:

    

my_widget.value = "1998-12-07" # December 1st, 1998


    

In [31]:

    




    

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