@gmod/jbrowse/src/JBrowse/Store/SeqFeature/BigBed.js

JBrowse - client-side genome browser

define( [
            'dojo/_base/declare',
            'dojo/_base/lang',
            'dojo/_base/array',
            './BigWig',
            './BigWig/Window',
            'JBrowse/Model/SimpleFeature'
        ],
        function(
            declare,
            lang,
            array,
            BigWig,
            Window,
            SimpleFeature
        ) {

const predefinedFeatureTransforms = {
}

return declare(BigWig,

 /**
  * @lends JBrowse.Store.SeqFeature.BigBed
  */
{
    constructor(args) {
    },

    _getFeatures( query, featureCallback, endCallback, errorCallback ) {

        const chrName = this.browser.regularizeReferenceName( query.ref );
        const view = this.getUnzoomedView()

        if (!view) {
            endCallback()
            return
        }

        view.readWigData(
            chrName,
            query.start,
            query.end,
            features => {
                this.applyFeatureTransforms(features || [])
                    .forEach(featureCallback)
                endCallback()
            },
            errorCallback
        )
    },

    supportsFeatureTransforms: true,

    getView() {
        return this.getUnzoomedView()
    },

    getPredefinedFeatureTransform: function getPredefinedFeatureTransform(name) {
        return predefinedFeatureTransforms[name] || this.inherited(getPredefinedFeatureTransform,arguments)
    }

});

});