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<h1 class="page-title">Source: layers/LayerEsriMapServer.js</h1>
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<pre class="prettyprint source linenums"><code>/**
* Created by gavorhes on 12/7/2015.
*/
import $ from '../jquery';
import LayerBase from './LayerBase';
import * as esriToOl from '../olHelpers/esriToOlStyle';
import mapPopup from '../olHelpers/mapPopup';
import provide from '../util/provide';
const ol = require('../ol/ol');
const nm = provide('layers');
/**
* esri mapserver layer
* @augments LayerBase
*/
class LayerEsriMapServer extends LayerBase {
/**
* The base layer for all others
* @param {string} url - resource url
* @param {object} options - config
* @param {string} [options.id] - layer id
* @param {string} [options.name=Unnamed Layer] - layer name
* @param {number} [options.opacity=1] - opacity
* @param {boolean} [options.visible=true] - default visible
* @param {number} [options.minZoom=undefined] - min zoom level, 0 - 28
* @param {number} [options.maxZoom=undefined] - max zoom level, 0 - 28
* @param {object} [options.params={}] the get parameters to include to retrieve the layer
* @param {number} [options.zIndex=0] the z index for the layer
* @param {function} [options.loadCallback] function to call on load, context this is the layer object
* @param {boolean} [options.legendCollapse=false] if the legend item should be initially collapsed
* @param {boolean} [options.legendCheckbox=true] if the legend item should have a checkbox for visibility
* @param {boolean} [options.legendContent] additional content to add to the legend
* @param {boolean} [options.addPopup=false] if a popup should be added
*/
constructor(url, options) {
super(url, options);
this._source = new ol.source.TileArcGISRest({url: this.url == '' ? undefined : this.url});
this.olLayer = new ol.layer.Tile({
source: this._source,
visible: this.visible,
opacity: this.opacity,
minResolution: this._minResolution,
maxResolution: this._maxResolution,
zIndex: this._zIndex
});
options.addPopup = typeof options.addPopup == 'boolean' ? options.addPopup : false;
this._esriFormat = new ol.format.EsriJSON();
this._popupRequest = null;
this.addLegendContent();
if (options.addPopup) {
mapPopup.addMapServicePopup(this);
}
}
/**
* add additional content to the legend
* @param {string} [additionalContent=''] additional content for legend
*/
addLegendContent(additionalContent) {
let urlCopy = this.url;
if (urlCopy[urlCopy.length - 1] !== '/') {
urlCopy += '/';
}
urlCopy += 'legend?f=pjson&callback=?';
let _this = this;
let superAddLegend = super.addLegendContent;
$.get(urlCopy, {}, function (d) {
let newHtml = esriToOl.makeMapServiceLegend(d);
superAddLegend.call(_this, newHtml);
}, 'json');
}
getPopupInfo(queryParams) {
if (!this.visible) {
return;
}
let urlCopy = this.url;
if (urlCopy[urlCopy.length - 1] != '/') {
urlCopy += '/';
}
urlCopy += 'identify?callback=?';
let _this = this;
if (this._popupRequest != null) {
this._popupRequest.abort();
}
this._popupRequest = $.get(urlCopy, queryParams, function (d) {
for (let r of d['results']) {
let popupHtml = '<table class="esri-popup-table">';
for (let a in r['attributes']) {
if (r['attributes'].hasOwnProperty(a)) {
let attrVal = r['attributes'][a];
if (attrVal == null || attrVal.toString().toLowerCase() == 'null') {
continue;
}
let attr = a;
if (attr.length > 14) {
attr = attr.slice(0, 11) + '...';
}
popupHtml += `<tr><td>${attr}</td><td>${attrVal}</td></tr>`;
}
}
popupHtml += '</table>';
mapPopup.addMapServicePopupContent(_this._esriFormat.readFeature(r), _this, popupHtml, r['layerName']);
}
}, 'json').always(function () {
_this._popupRequest = null;
});
}
/**
* overwrite the base load
* @protected
*/
_load() {
}
/**
*
* @returns {ol.source.TileArcGISRest} the vector source
*/
get source() {
return super.source;
}
}
nm.LayerEsriMapServer = LayerEsriMapServer;
export default LayerEsriMapServer;
</code></pre>
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