click_info.py

from mpld3 import plugins
from mpld3 import utils

class ClickInfo(plugins.PluginBase):
    """Plugin for getting info on click"""
    
    JAVASCRIPT = """
    mpld3.register_plugin("clickinfo", ClickInfo);
    ClickInfo.prototype = Object.create(mpld3.Plugin.prototype);
    ClickInfo.prototype.constructor = ClickInfo;
    ClickInfo.prototype.requiredProps = ["id"];
    function ClickInfo(fig, props){
        mpld3.Plugin.call(this, fig, props);
    };
    
    ClickInfo.prototype.draw = function(){
        var obj = mpld3.get_element(this.props.id);
        obj.elements().on("mousedown",
                          function(d, i){alert("clicked on points[" + i + "]");});
    }
    """

    def __init__(self, points, urls):
        self.dict_ = {"type": "clickinfo",
                      "id": utils.get_id(points),
                      "urls": urls
                     }