hover on popup list

189
5
01-26-2022 04:37 PM
rabeya08
New Contributor II

Hi,

I am trying to achieve this:

click on any point in the map, gives a popup menu list (no problem in this part).  

rabeya08_0-1643246242787.jpeg

Then if you hover on that popup menu, you will see the corresponding feature highlighted on map.

I am stuck with the hover on popup part, any help will be highly appreciated

Here is the sample code from  https://developers.arcgis.com/javascript/latest/sample-code/sandbox/?sample=featurelayer-query-basic

 

 <meta
      name="viewport"
      content="initial-scale=1,maximum-scale=1,user-scalable=no"
    />
    <title>
      Basic Querying in FeatureLayer | Sample | ArcGIS API for JavaScript 4.22
    </title>

    <link
      rel="stylesheet"
      href="https://js.arcgis.com/4.22/esri/themes/light/main.css"
    />
    <script src="https://js.arcgis.com/4.22/"></script>

    <style>
      html,
      body,
      #viewDiv {
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
      }
      #optionsDiv {
      background-color: white;
      color: black;
      padding: 6px;
      max-width: 400px;
      }
    </style>
    <script>
      require([
        "esri/Map",
        "esri/Graphic",
        "esri/views/MapView",
        "esri/layers/FeatureLayer",
        "esri/widgets/Legend"
      ], (Map, Graphic, MapView, FeatureLayer, Legend) => {
        // Crime in SF
        const layer = new FeatureLayer({
          // autocasts as new PortalItem()
          portalItem: {
            id: "234d2e3f6f554e0e84757662469c26d3"
          },
          outFields: ["*"]
        });

        const map = new Map({
          basemap: "gray-vector",
          layers: [layer]
        });

        const view = new MapView({
          container: "viewDiv",
          map: map,
          popup: {
            autoOpenEnabled: false,
            dockEnabled: true,
            dockOptions: {
              // dock popup at bottom-right side of view
              buttonEnabled: false,
              breakpoint: false,
              position: "bottom-right"
            }
          }
        });

        const legend = new Legend({
          view: view,
          layerInfos: [
            {
              layer: layer
            }
          ]
        });

        view.ui.add(legend, "bottom-left");
        view.ui.add("optionsDiv", "top-right");

        // additional query fields initially set to null for basic query
        let distance = null;
        let units = null;

        //create graphic for mouse point click
        const pointGraphic = new Graphic({
          symbol: {
            type: "simple-marker", // autocasts as new SimpleMarkerSymbol()
            color: [0, 0, 139],
            outline: {
              color: [255, 255, 255],
              width: 1.5
            }
          }
        });

        // Create graphic for distance buffer
        const bufferGraphic = new Graphic({
          symbol: {
            type: "simple-fill", // autocasts as new SimpleFillSymbol()
            color: [173, 216, 230, 0.2],
            outline: {
              // autocasts as new SimpleLineSymbol()
              color: [255, 255, 255],
              width: 1
            }
          }
        });

        // when query type changes, set appropriate values
        const queryOpts = document.getElementById("query-type");

        queryOpts.addEventListener("change", () => {
          switch (queryOpts.value) {
            // values set for distance query
            case "distance":
              distance = 0.5;
              units = "miles";
              break;
            default:
              // Default set to basic query
              distance = null;
              units = null;
          }
        });
        layer.load().then(() => {
          // Set the view extent to the data extent
          view.extent = layer.fullExtent;
          layer.popupTemplate = layer.createPopupTemplate();
        });

        view.on("click", (event) => {
          view.graphics.remove(pointGraphic);
          if (view.graphics.includes(bufferGraphic)) {
            view.graphics.remove(bufferGraphic);
          }
          queryFeatures(event);
          console.log(view.graphics);
          console.log("popup");
          console.log(view.popup);
        });

        function queryFeatures(screenPoint) {
          const point = view.toMap(screenPoint);
          layer
            .queryFeatures({
              geometry: point,
              // distance and units will be null if basic query selected
              distance: distance,
              units: units,
              spatialRelationship: "intersects",
              returnGeometry: false,
              returnQueryGeometry: true,
              outFields: ["*"]
            })
            .then((featureSet) => {
              // set graphic location to mouse pointer and add to mapview
              pointGraphic.geometry = point;
              view.graphics.add(pointGraphic);
              // open popup of query result
              view.popup.open({
                location: point,
                features: featureSet.features,
                featureMenuOpen: true
                //fetchFeatures: true
              });
              view.popup.container.onclick = function () {
                var menuLists = document.getElementsByClassName(
                  "esri-popup__feature-menu-list"
                );
                var ol = menuLists[0];
                var node = ol.firstChild;
                var i = 1;
                while (node) {
                  //console.log(node.textContent)
                  node.addEventListener("click", itemClicked);
                  node.ind = i;
                  i = i + 1;
                  node = node.nextSibling;
                }

                function itemClicked(e) {
                  console.log("item clicked ");
                  console.log(e.currentTarget.ind);
                }
              };

              //  console.log("popupdf")
              // };

              if (featureSet.queryGeometry) {
                bufferGraphic.geometry = featureSet.queryGeometry;
                view.graphics.add(bufferGraphic);
              }
            });
        }
      });
    </script>
  </head>
  <body>
    <div id="viewDiv"></div>
    <div id="optionsDiv" class="esri-widget">
      <p>
        Select a query type and click a point on the map to view the results.
      </p>
      <select id="query-type" class="esri-widget">
        <option value="basic">Basic Query</option>
        <option value="distance">Query By Distance</option>
      </select>
    </div>
  </body>
</html>

 

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5 Replies
UndralBatsukh
Esri Regular Contributor

Hi there, 

This is not possible out of the box in the API. We can look into adding this for the popup feature menu. However, I do not know if this will be implemented or when it will be implemented. If we add this feature, I will be sure to update. 

In meantime, do you think you can use approached used in this sample? https://developers.arcgis.com/javascript/latest/sample-code/sandbox/?sample=featurelayerview-query

You could update the sample to listen to mouseover event of the listNodes. listNode.addEventListener("mouseover", onListClickHandler);

rabeya08
New Contributor II

Thank you for your reply and for the attached code link.

I will see if I can find a workaround.

Thank you.

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LaurenBoyd
Esri Contributor

Hi @rabeya08 -

The functionality to highlight features in the map that are corresponding to a hovered item in the popup feature menu will be available in version 4.24.

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LaurenBoyd
Esri Contributor

@rabeya08 - you can see the new functionality with the "next" version of the API. Here is the sample above showing the new highlight on feature menu hover functionality:  https://codepen.io/laurenb14/pen/BaYZBxW?editors=1000

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rabeya08
New Contributor II

Hi @LaurenBoyd 

Great! Thank you very much! 

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