devextreme/dist/transpiled/viz/tree_map/tracker.js

HTML5 JavaScript Component Suite for Responsive Web Development

"use strict";

var proto = require("./tree_map.base").prototype,
    Tracker = require("../components/tracker").Tracker,
    expand = require("../core/helpers").expand,
    _parseScalar = require("../core/utils").parseScalar,
    DATA_KEY_BASE = "__treemap_data_",
    dataKeyModifier = 0;

require("./api");
require("./hover");
require("./tooltip");

proto._eventsMap.onClick = { name: "click" };

expand(proto, "_initCore", function () {
    var that = this,
        dataKey = DATA_KEY_BASE + dataKeyModifier++,
        getProxy = function getProxy(index) {
        return that._nodes[index].proxy;
    };

    that._tracker = new Tracker({
        widget: that,
        root: that._renderer.root,
        getNode: function getNode(id) {
            var proxy = getProxy(id),
                interactWithGroup = _parseScalar(that._getOption("interactWithGroup", true));

            return interactWithGroup && proxy.isLeaf() && proxy.getParent().isActive() ? proxy.getParent() : proxy;
        },
        getData: function getData(e) {
            var target = e.target;
            return (target.tagName === "tspan" ? target.parentNode : target)[dataKey];
        },
        getProxy: getProxy,
        click: function click(e) {
            that._eventTrigger("click", e);
        }
    });
    that._handlers.setTrackerData = function (node, element) {
        element.data(dataKey, node._id);
    };

    ///#DEBUG
    exports._TESTS_dataKey = dataKey;
    ///#ENDDEBUG
});

expand(proto, "_disposeCore", function () {
    this._tracker.dispose();
});