Javascript 如何将映射信息窗口值传递到HTML输入表单
好的，我快到了。下面的脚本获取PHP SQL查询的输出，并在结果中的每个点上创建多个标记 输出字符串liste_des_points如下所示：Javascript 如何将映射信息窗口值传递到HTML输入表单,javascript,google-maps-api-3,infowindow,Javascript,Google Maps Api 3,Infowindow,好的，我快到了。下面的脚本获取PHP SQL查询的输出，并在结果中的每个点上创建多个标记 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"] 最后一步，我无法做到，当用户点击一个标记时，它将通过在底部的三个HTML输入字
[43.818298,-69.809998, "Phippsburg, Kennebec River, Maine"],[43.755001,-69.785004, "Fort Popham, Hunniwell Point, Kennebec River, Maine"]
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]);
<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..."> <INPUT type="reset" value="Clear Entry"></td>
</tr>
</table>
</form>
</div>
</body>
</html>
修复现有代码的最简单方法是在marker click listener函数中的i上添加函数闭包，并将设置表单中值的代码放入其中：
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++;