如何将Infowindow值映射到HTML输入表单

Question

OK, I'm almost there. 好，我快到了。 The script below takes the output of a PHP SQL query and creates multiple markers at each of the points in the result. 下面的脚本获取PHP SQL查询的输出，并在结果的每个点处创建多个标记。

An output string (liste_des_points) looks like this: 输出字符串（liste_des_points）如下所示：

[43.818298,-69.809998, "Phippsburg, Kennebec River, Maine"],[43.755001,-69.785004, "Fort Popham, Hunniwell Point, Kennebec River, Maine"]

One final step, which I cannot make work, is that when a user clicks on a marker it will confirm the selection by displaying the info window contents in the three HTML input fields at the bottom; 我无法执行的最后一步是，当用户单击标记时，它将通过在底部的三个HTML输入字段中显示信息窗口内容来确认选择。 click a different marker and the input fields' contents change. 单击其他标记，输入字段的内容将更改。

I've figured out I need to use something like: 我发现我需要使用类似的东西：

document.getElementById('txtLat').value = liste_des_points[i][0];
document.getElementById('txtLng').value = liste_des_points[i][1];
document.getElementById('tideStation').value = (liste_des_points[i][2]);

but cannot work out where to integrate it into the existing script. 但无法确定将其集成到现有脚本中的位置。

<html>

<head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
    html {
        height: 100%
    }

    body {
        height: 100%;
        margin: 0;
        padding: 0
    }

    #map_canvas {
        height: 100%
    }
    </style>
    <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=MY_API_KEY">
    </script>
    <script type="text/javascript">
    var infos = [];

    function initMap() {
        var optionsCarte = {
            center: new google.maps.LatLng(<?php echo $lat; ?>, <?php echo $lon; ?>),
            zoom: 12,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"), optionsCarte);
        var myicon = "images/tidesicons-line-32.ico";
        var liste_des_points = [<?php echo $listeDesPoints;?>];
        var liste_des_points_Station = [<?php echo $listeDesPointsStation;?>];
        var i = 0,
            li = liste_des_points.length;
        var infowindow = new google.maps.InfoWindow();
        currentPopup = infowindow;
        /* set the markers   */
        while (i < li) {
            new google.maps.LatLng(liste_des_points[i][0]);
            new google.maps.LatLng(liste_des_points[i][1]);
            new google.maps.LatLng(liste_des_points[i][2]);
            marker = new google.maps.Marker({
                position: new google.maps.LatLng(liste_des_points[i][0], liste_des_points[i][1]),
                map: map,
                icon: myicon,
            });
            var content = liste_des_points[i][0] + " ; " + liste_des_points[i][1] + " ; " + liste_des_points[i][2];

            i++;
            google.maps.event.addListener(marker, 'click', (function(marker, content, infowindow) {
                return function() {
                    /* close the previous info-window */
                    closeInfos();
                    infowindow.setContent(content);
                    infowindow.open(map, marker);
                    /* keep the handle, in order to close it on next click event */
                    infos[0] = infowindow;
                };
            })(marker, content, infowindow));
        }
    }

    function closeInfos() {
        if (infos.length > 0) {
            /* detach the info-window from the marker ... undocumented in the API docs */
            infos[0].set("marker", null);
            /* and close it */
            infos[0].close();
            /* blank the array */
            infos.length = 0;
        }
    }
    </script>
    <title>Search NOAA Stations by ZIPcode</title>
</head>
<div align="center">

    <body onLoad="initMap()">
        <div id="map_canvas" style="width:50%; height:50%"> </div>
</div>
<hr size=".5" width="75%" />
<div align="center">
    <div>
        <form action="output.php" method="get" name="locationinfo">
            <table cellpadding="3" cellspacing="3" align="center" width="40%">
                <tr>
                    <th colspan="2" align="center">You selected the tide station shown below.<br />If this not correct, click on another one in the map to change the selection</th>
                </tr>
                <tr>
                    <th colspan="2" align="center">When you click on the "Create Calendar Files..." link you will generate the files for the tide station you selected which will be used to create your calendar.</th>
                </tr>
                <tr>
                    <td colspan=3>
                        <div id="map_canvas" style="background-color: #ffffff"></div>
                    </td>
                </tr>
                <tr>
                    <td>Latitude:</td>
                    <td><input type="text" id="txtLat" name="txtLat" width="70" size="40"></td>
                <tr>
                    <td>Longitude:</td>
                    <td><input type="text" id="txtLng" name="txtLng" width="70" size="40"></td>
                </tr>
                <tr>
                    <td>Location:</td>
                    <td><input type="text" id="tideStation" name="txtDesc" width="100" size="40"></td>
                </tr>
                <tr>
                    <td align="center" colspan="2"><input type="submit" value="Create Calendar Files...">&nbsp;&nbsp;&nbsp;<INPUT type="reset" value="Clear Entry"></td>
                </tr>
            </table>
        </form>
    </div>
    </body>

</html>

Answer 1

Simplest way to fix your existing code is to add function closure on i in the marker "click" listener function and put the code that sets the values in the form into there: 修复现有代码的最简单方法是在标记“ click”侦听器函数中的i上添加函数闭包，然后将在表单中设置值的代码放入其中：

google.maps.event.addListener(marker, 'click', (function(marker, content, infowindow, i) {
  return function() {
    /* close the previous info-window */
    closeInfos();
    infowindow.setContent(content);
    infowindow.open(map, marker);
    document.getElementById('txtLat').value = liste_des_points[i][0];
    document.getElementById('txtLng').value = liste_des_points[i][1];
    document.getElementById('tideStation').value = (liste_des_points[i][2]);
    /* keep the handle, in order to close it on next click event */
    infos[0] = infowindow;
  };
})(marker, content, infowindow, i));
i++;

proof of concept fiddle 概念证明

code snippet: 代码段：

 html { height: 100% } body { height: 100%; margin: 0; padding: 0 } #map_canvas { height: 50% }

 <script> var infos = []; function initMap() { var optionsCarte = { center: new google.maps.LatLng(43.818298, -69.809998), zoom: 12, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map(document.getElementById("map_canvas"), optionsCarte); var liste_des_points = [ [43.818298, -69.809998, "Phippsburg, Kennebec River, Maine"], [43.755001, -69.785004, "Fort Popham, Hunniwell Point, Kennebec River, Maine"] ]; //var liste_des_points_Station=[<?php echo $listeDesPointsStation;?>]; var i = 0, li = liste_des_points.length; var infowindow = new google.maps.InfoWindow(); currentPopup = infowindow; /* set the markers */ while (i < li) { marker = new google.maps.Marker({ position: new google.maps.LatLng(liste_des_points[i][0], liste_des_points[i][1]), map: map, }); var content = liste_des_points[i][0] + " ; " + liste_des_points[i][1] + " ; " + liste_des_points[i][2]; google.maps.event.addListener(marker, 'click', (function(marker, content, infowindow, i) { return function() { /* close the previous info-window */ closeInfos(); infowindow.setContent(content); infowindow.open(map, marker); document.getElementById('txtLat').value = liste_des_points[i][0]; document.getElementById('txtLng').value = liste_des_points[i][1]; document.getElementById('tideStation').value = (liste_des_points[i][2]); /* keep the handle, in order to close it on next click event */ infos[0] = infowindow; }; })(marker, content, infowindow, i)); i++; } } function closeInfos() { if (infos.length > 0) { /* detach the info-window from the marker ... undocumented in the API docs */ infos[0].set("marker", null); /* and close it */ infos[0].close(); /* blank the array */ infos.length = 0; } } </script> <div id="map_canvas"></div> <!-- Replace the value of the key parameter with your own API key. --> <script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap"></script> <div align="center"> <div id="map_canvas" style="width:50%; height:50%"> </div> </div> <hr size=".5" width="75%" /> <div align="center"> <div> <form action="output.php" method="get" name="locationinfo"> <table cellpadding="3" cellspacing="3" align="center" width="40%"> <tr> <th colspan="2" align="center">You selected the tide station shown below.<br />If this not correct, click on another one in the map to change the selection</th> </tr> <tr> <th colspan="2" align="center">When you click on the "Create Calendar Files..." link you will generate the files for the tide station you selected which will be used to create your calendar.</th> </tr> <tr> <td colspan=3> <div id="map_canvas" style="background-color: #ffffff"></div> </td> </tr> <tr> <td>Latitude:</td> <td><input type="text" id="txtLat" name="txtLat" width="70" size="40"></td> <tr> <td>Longitude:</td> <td><input type="text" id="txtLng" name="txtLng" width="70" size="40"></td> </tr> <tr> <td>Location:</td> <td><input type="text" id="tideStation" name="txtDesc" width="100" size="40"></td> </tr> <tr> <td align="center" colspan="2"><input type="submit" value="Create Calendar Files...">&nbsp;&nbsp;&nbsp; <INPUT type="reset" value="Clear Entry"> </td> </tr> </table> </form> </div>

如何将Infowindow值映射到HTML输入表单

问题描述

1 个解决方案

解决方案1
1 已采纳 2019-01-11 21:49:57

如何将Infowindow值映射到HTML输入表单

问题描述

1 个解决方案

解决方案1 1 已采纳 2019-01-11 21:49:57

解决方案1
1 已采纳 2019-01-11 21:49:57