Function getTraceAttributes

src/plot_api/plot_schema.js:387–464

(type)

}

function getTraceAttributes(type) {
    var _module, basePlotModule;

    _module = Registry.modules[type]._module,
    basePlotModule = _module.basePlotModule;

    var attributes = {};

    // make 'type' the first attribute in the object
    attributes.type = null;

    var copyBaseAttributes = extendDeepAll({}, baseAttributes);
    var copyModuleAttributes = extendDeepAll({}, _module.attributes);

    // prune global-level trace attributes that are already defined in a trace
    exports.crawl(copyModuleAttributes, function(attr, attrName, attrs, level, fullAttrString) {
        nestedProperty(copyBaseAttributes, fullAttrString).set(undefined);
        // Prune undefined attributes
        if(attr === undefined) nestedProperty(copyModuleAttributes, fullAttrString).set(undefined);
    });

    // base attributes (same for all trace types)
    extendDeepAll(attributes, copyBaseAttributes);

    // prune-out base attributes based on trace module categories
    if(Registry.traceIs(type, 'noOpacity')) {
        delete attributes.opacity;
    }
    if(!Registry.traceIs(type, 'showLegend')) {
        delete attributes.showlegend;
        delete attributes.legendgroup;
    }
    if(Registry.traceIs(type, 'noHover')) {
        delete attributes.hoverinfo;
        delete attributes.hoverlabel;
    }
    if(!_module.selectPoints) {
        delete attributes.selectedpoints;
    }

    // module attributes
    extendDeepAll(attributes, copyModuleAttributes);

    // subplot attributes
    if(basePlotModule.attributes) {
        extendDeepAll(attributes, basePlotModule.attributes);
    }

    // 'type' gets overwritten by baseAttributes; reset it here
    attributes.type = type;

    var out = {
        meta: _module.meta || {},
        categories: _module.categories || {},
        animatable: Boolean(_module.animatable),
        type: type,
        attributes: formatAttributes(attributes),
    };