我有这个代码，我从另一篇文章得到。我是JavaScript的新手，并尝试修改它，以便当我单击一个标记时，我希望在新的infowindow打开之前关闭前一个infowindow以保持地图清洁。我知道这个问题已被回答了很多次。
我已经完成了我的研究，试图修复这段代码，但我缺乏java限制了我。
这是我的来源：
function cCustomMapping(options) {
var self = this;
var pOptions = options,
pData, pMap;
var currentInfoWindow = null;
var activeWindow
self.getOptions = function() {
return pOptions;
};
self.setData = function(data) {
pData = data;
return pData;
};
self.getData = function() {
return pData;
};
self.afterResetBoundingBox = function(bounds) {
// called when map size is adjusted to bounds
return bounds;
};
self.beforeMapRendering = function(myOptions) {
// make any map rendering adjustments here
return myOptions;
};
self.afterMapRendering = function(theMap) {
// store map opject
pMap = theMap;
return pMap;
};
self.afterMarkerCreate = function(cj) {
// play around with marker info window etc.
return cj;
};
self.setParams = function(qParams) {
// play around with parameters
pParams = qParams;
return pParams;
};
self.getParams = function() {
return pParams;
};
self.markerOnClick = function(cj) {
// when a marker is clicked
return cj
//setIcon('https://www.google.com/mapfiles/marker_green.png');
};
self.markerAfterClick = function(cj) {
// affter a marker click is processed
return cj;
};
}
function mcpherDataPopulate() {
var mcpherData = {
'framework': {
'control': {
'browser': 'default',
'zoomlevelonselect': 18,
'resizeboundingbox': 1,
'shape': 'circle'
}
},
'cJobject': [
{
'title': '007',
'content': '\<b\>7 - (19119)\</b\>\<br\>6480 ANDERSON ST\<br\>',
'lat': '40.059088',
'lng': '-75.172762',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '010',
'content': '\<b\>10 - (19119)\</b\>\<br\>6463 ARDLEIGH ST\<br\>',
'lat': '40.057609',
'lng': '-75.172873',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '011',
'content': '\<b\>11 - (19119)\</b\>\<br\>6475 ARDLEIGH ST\<br\>',
'lat': '40.0579279',
'lng': '-75.173392',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '012',
'content': '\<b\>12 - (19119)\</b\>\<br\>6610 ARDLEIGH ST\<br\>',
'lat': '40.058337',
'lng': '-75.175411',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '017',
'content': '\<b\>17 - (19150)\</b\>\<br\>1501 Barringer St\<br\>',
'lat': '40.062211',
'lng': '-75.166986',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
},
{
'title': '018',
'content': '\<b\>18 - (19150)\</b\>\<br\>1534 Barringer St\<br\>',
'lat': '40.062918',
'lng': '-75.165485',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
},
{
'title': '019',
'content': '\<b\>19 - (19119)\</b\>\<br\>1215 E Cardeza St\<br\>',
'lat': '40.059621',
'lng': '-75.171835',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '020',
'content': '\<b\>20 - (19119)\</b\>\<br\>1231 E Cardeza St\<br\>',
'lat': '40.060054',
'lng': '-75.171412',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '021',
'content': '\<b\>21 - (19119)\</b\>\<br\>1235 E Cardeza St\<br\>',
'lat': '40.060166',
'lng': '-75.171306',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '022',
'content': '\<b\>22 - (19119)\</b\>\<br\>1236 E Cardeza St\<br\>',
'lat': '40.059989',
'lng': '-75.170865',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '023',
'content': '\<b\>23 - (19119)\</b\>\<br\>1313 E Cardeza St\<br\>',
'lat': '40.061115',
'lng': '-75.170365',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '024',
'content': '\<b\>24 - (19119)\</b\>\<br\>1335 E Cardeza St\<br\>',
'lat': '40.061804',
'lng': '-75.169701',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19119'
}],
},
{
'title': '025',
'content': '\<b\>25 - (19150)\</b\>\<br\>1607 E Cardeza St\<br\>',
'lat': '40.064291',
'lng': '-75.167243',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
},
{
'title': '026',
'content': '\<b\>26 - (19150)\</b\>\<br\>1332 E Cliveden St\<br\>',
'lat': '40.061041',
'lng': '-75.168595',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
},
{
'title': '027',
'content': '\<b\>27 - (19150)\</b\>\<br\>1407 E Cliveden St\<br\>',
'lat': '40.061981',
'lng': '-75.16842',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
},
{
'title': '028',
'content': '\<b\>28 - (19150)\</b\>\<br\>1607 E Cliveden St\<br\>',
'lat': '40.064017',
'lng': '-75.166444',
'color': '#0000FF',
'size': '0',
'category': [{
'ZipCode': '19150'
}],
}
]
};
return mcpherData;
};
// -- this section is main
function initialize() {
mcpherData = mcpherDataPopulate();
customMapping.setData(mcpherData);
if (mcpherData.cJobject.length > 0) {
mcpherData.cJobject.sort(function(a, b) {
return a.title.toLowerCase() < b.title.toLowerCase() ? -1 : (a.title.toLowerCase() > b.title.toLowerCase() ? 1 : 0);
});
var myOptions = {
center: new google.maps.LatLng(mcpherData.cJobject[0].lat, mcpherData.cJobject[0].lng),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
// get parameters if any
var qparams = mcpherGetqparams();
qparams = customMapping.setParams(qparams);
var cj = mcpherData.cJobject;
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < cj.length; i++) {
cj[i].childIndex = i;
bounds.extend(new google.maps.LatLng(cj[i].lat, cj[i].lng));
}
if (!qparams['zoom']) qparams['zoom'] = 2;
myOptions['zoom'] = parseInt(qparams['zoom']);
// create the map
// opportunity to change options
myOptions = customMapping.beforeMapRendering(myOptions);
gMap = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
gMap.fitBounds(bounds);
customMapping.afterMapRendering(gMap);
// add the excel data
for (var i = 0; i < cj.length; i++) {
mcpherAddMarker(cj[i]);
}
// Set up combox
category();
quickLink(-1);
makeFlightGroups();
initialCategory();
}
}
//----
//---- this section is catfacunctions
// flightpath stuff
function createSquareCoords(p, size) {
// size will be in meters convert to km
return [
destinationLatLng(p, size / 1000, 45),
destinationLatLng(p, size / 1000, 135),
destinationLatLng(p, size / 1000, 225),
destinationLatLng(p, size / 1000, 315),
destinationLatLng(p, size / 1000, 45)
];
}
function destinationLatLng(p, size, heading) {
var d = size / earthRadius();
var lat1 = toRadians(p.lat());
var lon1 = toRadians(p.lng());
var brng = toRadians(heading);
var lat2 = Math.asin(Math.sin(lat1) * Math.cos(d) +
Math.cos(lat1) * Math.sin(d) * Math.cos(brng));
var lon2 = lon1 + Math.atan2(Math.sin(brng) * Math.sin(d) * Math.cos(lat1),
Math.cos(d) - Math.sin(lat1) * Math.sin(lat2));
lon2 = (lon2 + 3 * Math.PI) % (2 * Math.PI) - Math.PI;
return new google.maps.LatLng(fromRadians(lat2), fromRadians(lon2));
}
function earthRadius() {
return 6371.0;
}
function toType(obj) {
return ({}).toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase()
}
function isArray(arg) {
return toType(arg) == 'array';
}
function toRadians(deg) {
return Math.PI / 180 * deg;
}
function fromRadians(rad) {
return 180 / Math.PI * rad;
}
function createFlightGroups() {
var flightGroups = [];
var cj = mcpherData.cJobject;
var fg;
for (var i = 0; i < cj.length; i++) {
if (fg = cj[i].flightGroup) {
if (flightGroups.indexOf(fg) == -1) {
flightGroups.push(fg);
}
cj[i].flightGroupIndex = flightGroups.indexOf(fg);
} else cj[i].flightGroupIndex = -1;
}
return flightGroups;
}
function initialCategory() {
// sets initial category using the first select element
var cj = mcpherData.cJobject;
var c, p;
var combos = getAllCombos();
if (combos.length > 0) {
var cats = createCategories(combos[0]);
for (var i = 0; i < cj.length; i++) {
if (c = cj[i].startCategory) {
if ((p = cats.indexOf(c)) != -1) {
var elem = document.getElementById('selectcategory0');
elem.value = p;
dealWithCategories(elem);
return p;
}
}
}
}
return -1;
}
// this is because IE doesnt have indexOf...
if (!Array.indexOf) {
Array.prototype.indexOf = function(obj, start) {
for (var i = (start || 0); i < this.length; i++) {
if (this[i] == obj) {
return i;
}
}
return -1;
}
}
function resetBoundingBox(force) {
var z = mcpherData.framework && mcpherData.framework.control && mcpherData.framework.control.resizeboundingbox ?
mcpherData.framework.control.resizeboundingbox : false;
if ((z || force) && !vMap) {
// dont do for vizmap apps - reset bounding box to visible items
var cj = mcpherData.cJobject;
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < cj.length; i++) {
if (cj[i].marker.visible) bounds.extend(new google.maps.LatLng(cj[i].lat, cj[i].lng));
}
gMap.fitBounds(bounds);
}
customMapping.afterResetBoundingBox(bounds);
}
function makeFlightGroups() {
var flightGroups = createFlightGroups();
var cj = mcpherData.cJobject;
for (var j = 0; j < flightGroups.length; j++) {
var flightCoords = [];
var color = "#FF0000";
for (var i = 0; i < cj.length; i++) {
if (j == cj[i].flightGroupIndex) {
flightCoords.push(cj[i].marker.position);
if (cj[i].flightColor) color = cj[i].flightColor;
}
}
if (flightCoords.length) {
flightGroups[j].flightPath = new google.maps.Polyline({
path: flightCoords,
strokeColor: color,
strokeOpacity: 1.0,
strokeWeight: 2,
map: gMap
});
}
}
return flightGroups;
}
function createPoly(cj, p) {
if (cj.size) {
if (mcpherData.framework.control.shape == "square") {
return new google.maps.Polygon({
paths: createSquareCoords(p, cj.size),
strokeColor: cj.color,
strokeOpacity: 0.8,
strokeWeight: 1,
map: gMap,
fillColor: cj.color,
fillOpacity: 0.20
});
} else { // assume circle for backward comp.
var circle = {
strokeColor: cj.color,
strokeOpacity: 0.8,
strokeWeight: 1,
fillColor: cj.color,
fillOpacity: 0.20,
map: gMap,
center: p,
radius: parseFloat(cj.size),
};
return new google.maps.Circle(circle);
}
}
}
infoWindowClosed = true;
function mcpherAddMarker(cj) {
var p = new google.maps.LatLng(cj.lat, cj.lng);
cj.circle = createPoly(cj, p);
var marker = new google.maps.Marker({
position: p,
map: gMap,
title: cj.title
//icon: 'https://www.google.com/mapfiles/marker_black.png'
});
cj.marker = marker;
//cj.infowindow = null;
if (cj.image) marker.setIcon(cj.image);
if (cj.content) {
var c = document.createElement("div");
c.innerHTML = cj.content;
cj.infowindow = new google.maps.InfoWindow({
content: c
});
//google.maps.event.addListener(cj.marker, 'click', function() {
//cj.infowindow = null;//cj.infowindow.open( null, null );
//markerClick(gMap, cj);
//});
//}
//cj = customMapping.afterMarkerCreate(cj);
//return cj.marker;
//} /
google.maps.event.addListener(cj.marker, "click", function() {
markerClick(gMap, cj);
//cj = customMapping.markerOnClick(cj);
//if (cj.infowindow) cj.infowindow.close();
//cj.infowindow.open(omap, cj.marker);
//cj.infowindow.open (omap,cj.marker);
//adjustZoom(cj);
//cj = customMapping.markerAfterClick(cj);
//cj.marker.setIcon('https://www.google.com/mapfiles/marker_green.png');
});
}
cj = customMapping.afterMarkerCreate(cj);
return cj.marker;
}
function markerClick(omap, cj) {
cj = customMapping.markerOnClick(cj);
cj.infowindow.open(omap, cj.marker);
adjustZoom(cj);
cj = customMapping.markerAfterClick(cj);
cj.marker.setIcon('https://www.google.com/mapfiles/marker_green.png');
//currentInfoWindow = cj.infowindow;
}
function adjustZoom(cj) {
var z = mcpherData.framework && mcpherData.framework.control && mcpherData.framework.control.zoomlevelonselect ?
parseInt(mcpherData.framework.control.zoomlevelonselect) : null;
if (z) {
if (gMap.getZoom() == z) {
resetBoundingBox(true);
} else {
gMap.setZoom(z);
gMap.setCenter(cj.marker.getPosition());
}
}
}
function mcpherGetqparams() {
// get parameters
var ps = {};
location.search.substr(1).split("&")
.forEach(function(p) {
ps[p.split("=")[0]] = p.split("=")[1]
});
return ps;
}
function dealWithQuickLink(selValue) {
if (vMap) {
var nextSpot = vMap.spots[selValue];
vMap.gotoAnotherSpot(vMap.currentSpot, nextSpot);
if (vMap.provider == 'maps') nextSpot.createInfoWindow(0);
} else {
var cj = mcpherData.cJobject[selValue];
if (cj.infowindow) {
cj.infowindow.open(gMap, cj.marker);
}
adjustZoom(cj);
return cj.infowindow;
}
}
function findMySpot(cj) {
// return the spot to which this cj belongs
if (vMap) {
for (var i = 0; i < vMap.spots.length; i++) {
if (cj.SpotID === vMap.spots[i].spotId) return (vMap.spots[i]);
}
return null;
} else
return cj;
}
function dealWithCategories() {
var combos = getAllCombos();
// start by not showing anything, except where theres no categories
var cj = mcpherData.cJobject;
for (var j = 0; j < cj.length; j++) {
var mySpot = findMySpot(cj[j]);
mySpot.marker.setVisible(combos.length == 0);
if (mySpot.circle) {
mySpot.circle.setVisible(combos.length == 0);
}
}
// need appear in each category
for (var j = 0; j < cj.length && combos.length > 0; j++) {
var show = [];
for (var i = 0; i < combos.length; i++) {
var selElem = document.getElementById('selectcategory' + i);
if (selElem.value != 0) {
// we have a filter operating
var cats = createCategories(combos[i]);
var target = cats[selElem.value];
if (vMap) {
var c = cj[j];
if (c.hasOwnProperty(combos[i])) {
if (c[combos[i]] == target) show[i] = true;
}
} else {
for (var k = 0; k < cj[j].category.length; k++) {
for (m in cj[j].category[k]) {
if (m == combos[i]) {
if (cj[j].category[k][m] == target) show[i] = true;
}
}
}
}
} else {
show[i] = true;
}
}
// show it?
var x = 0;
for (var k = 0; k < combos.length; k++) {
if (show[k] === true) x++;
}
if (x == combos.length) {
var mySpot = findMySpot(cj[j]);
mySpot.marker.setVisible(true);
if (mySpot.circle) {
mySpot.circle.setVisible(true);
}
}
}
// reset to show only filtered spots
quickLink();
}
function quickLink(selCategory) {
var comboElem = document.getElementById('comboquicklink');
if (comboElem) {
if (selCategory == -1) { //first time in
var selElem = document.createElement('select');
selElem.id = "quickLinks";
} else {
var selElem = document.getElementById('quickLinks');
selElem.options.length = 0;
}
// depends on type of app
var cj = vMap ? vMap.spots : mcpherData.cJobject;
mcpherAddEvent(selElem, "change", function() {
dealWithQuickLink(selElem.value);
}, false, true);
for (var i = 0; i < cj.length; i++) {
// only show visible spots
var workit = true;
if (cj[i].marker) workit = cj[i].marker.visible;
if (workit) {
var o = document.createElement('option');
o.text = cj[i].title;
o.value = i;
selElem.value = o.value;
try {
selElem.add(o, null);
} catch (error) {
selElem.add(o);
}
}
}
comboElem.appendChild(selElem);
}
resetBoundingBox();
}
function createCategories(categoryName) {
var cats = [];
var cj = mcpherData.cJobject;
for (var i = 0; i < cj.length; i++) {
// find the matching object
if (vMap) {
if (cj[i].hasOwnProperty(categoryName)) {
if (cats.indexOf(cj[i][categoryName]) == -1) cats.push(cj[i][categoryName]);
}
} else {
for (var j = 0; j < cj[i].category.length; j++) {
if (cj[i].category[j].hasOwnProperty(categoryName)) {
if (cats.indexOf(cj[i].category[j][categoryName]) == -1) cats.push(cj[i].category[j][categoryName]);
}
}
}
}
cats.sort().splice(0, 0, 'all categories');
return cats;
}
function category() {
var comboElem = document.getElementById('combocategory');
if (comboElem) {
var combos = getAllCombos();
for (var j = 0; j < combos.length; j++) {
var selElem = document.createElement('select');
selElem.id = "selectcategory" + j;
var cats = createCategories(combos[j]);
mcpherAddEvent(selElem, "change", function() {
dealWithCategories(selElem);
}, false, true);
for (var i = 0; i < cats.length; i++) {
var o = document.createElement('option');
o.text = cats[i];
o.value = i;
try {
selElem.add(o, null);
} catch (error) {
selElem.add(o);
}
}
var d = document.createElement('span');
var t = document.createTextNode(combos[j]);
d.appendChild(t);
d.appendChild(selElem);
comboElem.appendChild(d);
}
}
}
function getAllCombos() {
var combos = [];
if (vMap) {
for (var i = 0; vMap.framework.spots.categories && i < vMap.framework.spots.categories.length; i++)
combos.push(vMap.framework.spots.categories[i]);
} else {
var cj = mcpherData.cJobject;
for (var i = 0; i < cj.length; i++) {
if (isArray(cj[i].category)) {
for (var j = 0; j < cj[i].category.length; j++) {
for (k in cj[i].category[j])
if (combos.indexOf(k) == -1) {
combos.push(k);
}
}
}
}
}
return combos;
}
// this section is functions as far as after /head
function mcpherAddEvent(o, e, f, b, complain) {
// because IE is different
if (o.addEventListener) return (o.addEventListener(e, f, b));
else if (o.attachEvent) return (o.attachEvent('on' + e, f));
else if (complain) alert('browser doesnt support events');
return (null);
}
var mcpherData;
var gMap;
var vMap;
var customMapping = new cCustomMapping({
type: 'default'
});html {
height: 100%
}
body {
height: 100%;
margin: 0;
padding: 0;
color: Gray;
background-color: WhiteSmoke;
}
#map_canvas {
height: 100%
}
.mcquicklink {
margin-left: 20px;
margin-right: 20px;
display: inline;
font-family: sans-serif;
float: right;
}
.mccategory {
margin-left: 20px;
margin-right: 20px;
display: inline;
font-family: sans-serif;
float: right;
}
.mcheading {
display: inline;
font-family: sans-serif;
}<html>
<head>
<meta name='viewport' content='initial-scale=1.0, user-scalable=no' />
<style type='text/css'>
</style>
<script type='text/javascript' src='http://maps.googleapis.com/maps/api/js?sensor=false'></script>
<script type='text/javascript' src='http://www.google.com/jsapi'></script>
<script type='text/javascript' src='http://apis.google.com/js/client.js'></script>
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js'></script>
<script type='text/javascript' src='http://xliberation.com/t/gas/js/scriptdbapi.js'></script>
<script type='text/javascript' src='http://xliberation.com/t/gas/js/firsttime.js'></script>
<script type='text/javascript' src='http://xliberation.com/cdn/js/ccookie.js'></script>
</head>
<body onload="initialize()">
<div id="comboquicklink" class="mcquicklink">Quick Links</div>
<div id="combocategory" class="mccategory"></div>
<div id="heading" class="mcheading">Tax Sale Map by Chrisol Real-estate
<a href="http://phillyanyhouse.com">phillyanyhouse.com</a>
</div>
<div id="map_canvas" style="width: 100%; height: 90%"></div>
</body>
</html>
答案 0 :(得分：0)
可能最简单的方法是修改markerOnClick函数，在这种情况下，一旦初始化下一个信息窗口，当前（currentInfoWindow）将被关闭：
self.markerOnClick = function (cj) {
// when a marker is clicked
if (currentInfoWindow) currentInfoWindow.close(); //close current info window
currentInfoWindow = cj.infowindow; //save current info window
return cj;
};