devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
61 lines (60 loc) • 1.9 kB
JavaScript
/**
* DevExtreme (viz/sankey/tracker.js)
* Version: 18.2.18
* Build date: Tue Oct 18 2022
*
* Copyright (c) 2012 - 2022 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var proto = require("./sankey").prototype,
Tracker = require("../components/tracker").Tracker,
DATA_KEY_BASE = "__sankey_data_",
dataKeyModifier = 0;
proto._eventsMap.onNodeClick = {
name: "nodeClick"
};
proto._eventsMap.onLinkClick = {
name: "linkClick"
};
exports.plugin = {
name: "tracker",
init: function() {
var that = this,
dataKey = DATA_KEY_BASE + dataKeyModifier++;
that._tracker = new Tracker({
widget: that,
root: that._renderer.root,
getData: function(e) {
var target = e.target;
return target[dataKey]
},
getNode: function(index) {
if (index < that._nodes.length) {
return that._nodes[index]
} else {
return that._links[index - that._nodes.length]
}
},
click: function(e) {
var eventName = this.getData(e.event) < that._nodes.length ? "nodeClick" : "linkClick";
that._eventTrigger(eventName, {
target: e.node,
event: e.event
})
}
});
this._dataKey = dataKey
},
dispose: function() {
this._tracker.dispose()
},
extenders: {
_change_LINKS_DRAW: function() {
var dataKey = this._dataKey;
this._nodes.concat(this._links).forEach(function(item, index) {
item.element.data(dataKey, index)
})
}
}
};