Preserving Nodes with Google InfoWindow and content_changed? - javascript

I'm trying to use Google Maps's InfoWindow with DOM nodes and preserve the nodes between InfoWindow swaps without having to create an explicit content store outside of the DOM. Unfortunately, when an InfoWindow's content is changed the previous content seems to be destroyed, this is unfortunate as it makes it impossible to switch back to the previous node. To make matters worse, it appears that the InfoWindow's content_changed event has no reference to the previous content, as the MVC events have no event args. Furthermore, as mentioned here, referencing the content property within the function references only the current value, and not the previous value, thus it would seem the previous value is gone for all tense and purposes.
For example, say you wanted to do this, assume we already have a map, and LatLng in myLatLng, myLatLng2. Note the only reference to shortlived node was added to the dom.
document.body.appendChild(document.createElement('div')).id = 'shortlived';
document.getElementById('shortlived').innerHTML = 'I will pass soon...';
var infowindow = new google.maps.InfoWindow();
var marker1 = new google.maps.Marker({
position: myLatlng,
map: map,
title:"Marker1"
});
var marker2 = new google.maps.Marker({
position: myLatlng2,
map: map,
title:"Marker2"
});
google.maps.event.addListener(marker1, 'click', function() {
infoWindow.setContent(document.getElementById('shortlived'));
infowindow.open(map, marker1);
});
google.maps.event.addListener(marker2, 'click', function() {
infoWindow.setContent('Some Text');
infowindow.open(map, marker2);
});
You'll notice that if you click on marker1 you see the shortlived node, then if you click on marker2 it goes away, but when you click marker1 again, you won't get shortlived, you may get 'Some Text' or you may get nothing, but in either case, shortlived is gone. In my case I would like to ideally do the following:
google.maps.event.addListener(infoWindow, 'content_changed' function(e){
//where e.content is the previous content
document.body.appendChild(e.content)
}
or
google.maps.event.addListener(infoWindow, 'content_changed' function(e){
//No such thing exists
document.body.appendChild(infoWindow.previousContent)
}
This doesn't seem like it's possible out of the box, any ideas? Again, I would like to avoid creating an independent store to keep a separate reference to the DOM nodes, other than the reference already in the DOM. I'm hoping there's something I'm missing.
Thanks in advance.

I'm not 100% sure it meets your use-case, but how about attaching the DOM reference to the marker itself? This should work well if you only have one DOM node per marker, and it means you can simplify your click handler code (not a big gain for two markers, but pretty handy for 20). This works for me:
document.body.appendChild(document.createElement('div')).id = 'longlived';
document.getElementById('longlived').innerHTML = 'I will stick around!';
var infowindow = new google.maps.InfoWindow();
var marker1 = new google.maps.Marker({
position: myLatlng,
map: map,
title:"Marker1"
});
// attach the DOM node to the marker instance
// marker1.iwcontent = myNode also works, but this follows the API
marker1.set('iwcontent', document.getElementById('longlived'));
var marker2 = new google.maps.Marker({
position: myLatlng2,
map: map,
title:"Marker2"
});
// attach alternate content to this marker
marker2.set('iwcontent', "Some Text");
// create a click handler that will work for both markers
// a more robust option might check for the existence of iwcontent first
var openContentWindow = function() {
var marker = this;
// set the content to whatever's attached to the marker
infowindow.setContent(marker.get('iwcontent'));
infowindow.open(map, marker);
}
// attach your handler to your markers
google.maps.event.addListener(marker1, 'click', openContentWindow);
google.maps.event.addListener(marker2, 'click', openContentWindow);
Note that, while the DOM node persists between marker clicks, it's been removed from the actual page. I can't tell whether this is what you want or not, but if you'd like to have the DOM node available after the info window changes, it looks like you can access the marker via the anchor attribute on the info window:
google.maps.event.addListener(infowindow, 'content_changed', function(){
// I don't see this in the documented API, but it seems to reference
// the *previous* anchor, the one you're interested in
var marker = this.anchor;
// there are better tests for whether a var is a DOM node
if (marker && marker.get('iwcontent').nodeType) {
// do something with the DOM node here
}
});
If you were worried about using an undocumented API attribute, you could use the same technique as above to set a reference to the old anchor on the info window and then retrieve it when the content changes - but it seems unnecessary.

You can do it, something like this
createMessage();
var infowindow = new google.maps.InfoWindow();
var marker1 = new google.maps.Marker({
position: new google.maps.LatLng(18.464008, -66.117776),
map: map,
title:"Marker1"
});
var marker2 = new google.maps.Marker({
position: new google.maps.LatLng(18.470338, -66.123503),
map: map,
title:"Marker2"
});
google.maps.event.addListener(marker1, 'click', function() {
infowindow.setContent(document.getElementById('shortlived'));
infowindow.open(map, marker1);
createMessage();
});
google.maps.event.addListener(marker2, 'click', function() {
infowindow.setContent('Some Text');
infowindow.open(map, marker2);
});
function createMessage(){
document.body.appendChild(document.createElement('div')).id = 'shortlived';
document.getElementById('shortlived').innerHTML = 'I will pass soon...';
}

Related

Map not adding click event handlers to markers

The code below will add markers to my map. But the add Listener event never gets added to each marker.
var mapDiv = document.getElementById("google-map");
var infowindow = new google.maps.InfoWindow({
content: 'test'
});
var map = new google.maps.Map(mapDiv);
map.setCenter(new GLatLng(53.635784, 6.943359));
map.setZoom(5);
for (var i = 0; i < data.length; i++) {
var dataMarker = data[i];
var marker = new GLatLng(dataMarker.Latitude, dataMarker.Longitude);
map.addOverlay(new google.maps.Marker(marker, {
title: dataMarker.Name,
html: dataMarker.HtmlAttributes[0]
}));
google.maps.event.addListener(marker, 'click', function () {
infoWindow.setContent(this.html);
infoWindow.open(map, this);
});
}
What am I doing wrong?
Oh and I am using Maps v2.
You did not add any listener to marker.
var marker = new GLatLng(dataMarker.Latitude, dataMarker.Longitude);
marker is not a google.maps.Marker , it's a google.maps.LatLng , which will not respond to mouse-events, because it's not an UI-element, it's just a javascript-object
You created event listeners which are most probably connected with last marker.
You have to link info window with marker in separate function. Last part of your code should be written as:
addEventListener(marker, infoWindow, map);
}
function addEventListener(marker, infoWindow, map) {
google.maps.event.addListener(marker, 'click', function () {
infoWindow.setContent(marker.html);
infoWindow.open(map, marker);
});
}
See also An array of infoWindow in Google maps api and link with explanation about closures.
It looks like you have a mix of v2 and v3 code in that snippet, and so the whole thing is unlikely to work.
For example, you're using new google.maps.Infowindow (v3) in the same place as GLatLng.
My suggestion would be to change the bootstrap on the page to v3, and delete any references to v2 objects (like GLatLng). Make sure you're loading the API like this:
<script src="//maps.googleapis.com/maps/api/js?…"></script>

tooltip content undefined - google map

I added code for tool tip display when hovering the pointers in the google map.It is showing the tool tip but the content is "undefined". How can put the corresponding content related to the pointer into the tool tip box.The code is :
function initialize() {
var myOptions = {
zoom: 11,
center: new google.maps.LatLng(29.7,-95.4),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("salon_map"), myOptions);
var locations = [
__newmapdetls__
];
for (var i = 0; i < locations.length; i++) {
var location = locations[i];
var image = new google.maps.MarkerImage("http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld="+location[3]+"|FF0000|000000",
new google.maps.Size(20, 34),
new google.maps.Point(0, 0),
new google.maps.Point(10, 34));
var myLatLng = new google.maps.LatLng(location[1], location[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3],
tooltip:"testinggg"+i
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1.open(map, this);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow1.close(map, this);
});
var infowindow1 = new google.maps.InfoWindow({
content: "'"+this.tooltip+"'"
});
}
}
Also url is : http://myshopsalon.com/find-a-shop-salon
A couple of things I noticed when looking at your page source:
Your page is loading both jQuery 1.10.1 and 1.7.2. But it isn't using noConflict(). So these two jQuery versions are stepping on each other.
You're also loading three copies of the Maps API: two copies of version 3 and a copy of the deprecated version 2 API.
Now to your question:
Use a closure to save your variables for each iteration of the marker loop. You can do this by simply calling a function in each iteration.
Instead of using this when you call infowindow.open(), use marker. (this and marker may be the same in this context, but use marker for consistency.)
The .close() method of an infowindow does not take any parameters.
Don't set the tooltip property when you create the marker. That may work, but it isn't documented that you can add your own properties in this fashion. Instead, simply use a local variable or parameter for tooltip.
I would create the infowindow before adding the event listeners. This will actually work fine in either order (since the event listeners are asynchronous), but it looks better to see the infowindow created first.
So, change your for loop to:
for (var i = 0; i < locations.length; i++) {
addMarker( locations[i], "testinggg" + i );
}
function addMarker( location, tooltip ) {
var image = new google.maps.MarkerImage(
"http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld="+location[3]+"|FF0000|000000",
new google.maps.Size(20, 34),
new google.maps.Point(0, 0),
new google.maps.Point(10, 34)
);
var myLatLng = new google.maps.LatLng(location[1], location[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3]
});
var infowindow = new google.maps.InfoWindow({
content: "'" + tooltip + "'"
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow.open(map, marker);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow.close();
});
}
That said, you may not like the result you get when you open an infowindow in response to moving the mouse over a marker. What if the marker is near the top of the window? The page will immediately move to make the infowindow fit on the screen, and now the marker won't be under the mouse any more.
You're already setting the title property when you create the marker. This should cause a normal browser tooltip to appear when the mouse is hovered over the marker, and it won't cause the map to move as the infowindow may do. Any reason not to just use that tooltip instead of the infowindow? You could just remove all of the infowindow code, or let the infowindow open on a click as it normally would.
Set the content of the infowindow onmouseover(you may access there the tooltip-property of the specific marker)
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1.setContent(this.tooltip);
infowindow1.open(map, this);
});
the initializing of infowindow1 move to outside the loop and leave the arguments empty.
Use the below code:
var infowindow1 = new google.maps.InfoWindow({
content: "'"+marker.tooltip+"'"
});
EDIETD:
var contentString = "testinggg"+i;
var infowindow1[i] = new google.maps.InfoWindow({
content: contentString
});
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3],
tooltip:"testinggg"+i
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1[i].open(map, marker);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow1[i].close(map, marker);
});
You can not get the property of marker in the info window. So you need to define the content in other variable.

How to get some information in google maps without click event on marker and show this in a div, other than infoWindow

Hi I am showing some markers on my google map and on click of the marker, I am calling the click event and showing some info about that place to the right side(area other than Map and not as an infoWindow). Now this event gets fired on click, and by default when page loads my div remains blank, How can I have the div the basic information being shown up once the map loads up. I need to show the information that corresponds to the marker that is the center point of the map, and later when the users click the marker icons the info should change and correspond to the particular marker being clicked
I have tried something but it doesn't work:
function loadMap() {
var myLatlng = new google.maps.LatLng(40.46998, -3.68705);
var myOptions = {
zoom: 3,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map"), myOptions);
var places = [];
places.push(new google.maps.LatLng(51.43581, -0.51744));
places.push(new google.maps.LatLng(48.87187, 2.31764));
places.push(new google.maps.LatLng(45.45979, 9.19681));
var infowindow;
for(var i = 0; i<places.length; i++) {
var marker= new google.maps.Marker({
position: places[i],
map: map,
title: 'Place' + i
});
(function (i,marker){
google.maps.event.addListener(marker, 'click' , function() {
infowindow.setContent('PLace Number' + i)
infowindow.open(i, marker)
});
});(i, marker);
}
}
$("document").ready(function () {
loadMap();
});
UPDATE EDITED
Basically I need something like Layer KML features
But the info should come on the right hand side by default for the first time. Later on when the marker is clicked, the info should change. I am also not adamant that I need this info in a kml file(xml is fine with me as well). I can just have a marker and info should popup on click and for the first time be default as well depending on the location of the user.
Bottom Line: I need the info to appear on click of a marker and by default when the page loads the info should appear corresponding to the center point of the map. which means users coming from different locations will see different info's corresponding to their location from where they are coming.(I am centering the map based on users location)
You can use the addDomListener event of the google maps api. Something like this:
<script>
function initialize() {
// Map initialization
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
<body>
<div id="map_canvas"></div>
</body>
Although the above code is Maps Javascript API code, the addDomListener() method binds to the window object of the browser and allows the API to communicate with objects outside of the API's normal domain.
further reading
Actually the basic Idea is that you need to read an XMl and parse the data and and show this in a seperate div on right side., This div you can create dynamically when you load the map e-g:
$("#body").append("<div class='newdiv'></div>")
From the google Docs in the section about InfoWindow:
Note that if you call open() without passing a marker, the InfoWindow
will use the position specified upon construction through the
InfoWindow options object.
So in your code, why don't you simply init your infoWindow and call the open() method? I am not particularly familiar with the api, but how about:
var infowindow = new google.maps.InfoWindow({
content: 'your initial text'
});
infowindow.open();
Or if you need the marker for special purposes on the infowindow, init an marker with the center position and use that in the infowindow.open(your_initial_pos) call.
You can use jQuery to .triger() a click event on the first marker on document.ready:
$(marker).trigger('click');
This will run the code you have already written and make it so when the page loads your div will be populated with data from whatever element you trigger the click on.
When you bind to document.ready you don't need encapsulate document in quotes:
$(document).ready(function () {...});
Or you could use the short-hand if you're into that sort of thing:
$(function () {...});
UPDATE
You can place the trigger function call after your for loop where you are setting up the markers:
for(var i = 0; i<places.length; i++) {
var marker= new google.maps.Marker({
position: places[i],
map: map,
title: 'Place' + i
});
(function (i,marker){
google.maps.event.addListener(marker, 'click' , function() {
infowindow.setContent('PLace Number' + i)
infowindow.open(i, marker)
});
});(i, marker);
//only run on the first marker
if (i === 0) {
//trigger a click event to show the first info-window
$(marker).trigger('click');
}
}
You can fire a tilesloaded event on the map object. Check out the Map reference for events
tilesloaded waits until the map tiles are actually loaded before firing. Using your code, you could do something like this:
function loadMap() {
var myLatlng = new google.maps.LatLng(40.46998, -3.68705);
var myOptions = {
zoom: 3,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map"), myOptions);
google.maps.event.addListener(map, 'tilesloaded', function() {
doSomething();
});

Google Maps API v3: Close infowindow when DOM element is clicked

I'm playing around with Google maps for the first time, so I looked at a nice tutorial over at CSS Tricks: http://css-tricks.com/google-maps-slider/ I like working with jQuery better than pure JS, and this tutorial makes a nice way to click on a place in a list to display the marker in the map.
I liked it that way, but I need to add infowindows to the marker. Which I did, but when I click on a place on the list and the map pans away, the infowindow stays open! I think it's because I need to attach the infowindow.close() to the event of clicking on a "#locations li".
Here's my code, which runs on document.ready:
$(function() {
var chicago = new google.maps.LatLng(41.924832, -87.697456),
pointToMoveTo,
first = true,
curMarker = new google.maps.Marker({}),
$el;
var myOptions = {
zoom: 10,
center: chicago,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map($("#map_canvas")[0], myOptions);
$("#locations li").click(function() {
$el = $(this);
if (!$el.hasClass("hover")) {
$("#locations li").removeClass("hover");
$el.addClass("hover");
if (!first) {
// Clear current marker
curMarker.setMap();
// Set zoom back to Chicago level
// map.setZoom(10);
}
// Move (pan) map to new location
function move(){
pointToMoveTo = new google.maps.LatLng($el.attr("data-geo-lat"), $el.attr("data-geo-long"));
map.panTo(pointToMoveTo);
}
move();
// Add new marker
curMarker = new google.maps.Marker({
position: pointToMoveTo,
map: map
});
// Infowindow: contenido
var contentString = '<p>'+$el.find("h3").html()+'</p>';
contentString += 'hola' ;
var infowindow = new google.maps.InfoWindow(
{
size: new google.maps.Size(150,50),
content: contentString
});
// On click, zoom map
google.maps.event.addListener(curMarker, 'click', function() {
//map.setZoom(14);
infowindow.open(map,curMarker);
});
It looks like you're creating a new InfoWindow for each marker. Quoting from the Google Maps API Docs:
If you only want one info window to display at a time (as is the behavior on Google Maps), you need only create one info window, which you can reassign to different locations or markers upon map events (such as user clicks).
Therefore, you may simply want to create one InfoWindow object just after you initialize your map, and then handle the click event handler as follows:
google.maps.event.addListener(curMarker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map, curMarker);
});
Then the InfoWindow should automatically close when you click on a new marker without having to call the close() method.

Have just one InfoWindow open in Google Maps API v3

I need to have only one InfoWindow open on my Google Map. I need to close all other InfoWindows before I open a new one.
Can someone show me how to do this?
You need to create just one InfoWindow object, keep a reference to it, and reuse if for all the markers. Quoting from the Google Maps API Docs:
If you only want one info window to display at a time (as is the behavior on Google Maps), you need only create one info window, which you can reassign to different locations or markers upon map events (such as user clicks).
Therefore, you may simply want to create the InfoWindow object just after you initialize your map, and then handle the click event handlers of your markers as follows. Let's say you have a marker called someMarker:
google.maps.event.addListener(someMarker, 'click', function() {
infowindow.setContent('Hello World');
infowindow.open(map, this);
});
Then the InfoWindow should automatically close when you click on a new marker without having to call the close() method.
Create your infowindow out of the scope so that you can share it.
Here is a simple example:
var markers = [AnArrayOfMarkers];
var infowindow = new google.maps.InfoWindow();
for (var i = 0, marker; marker = markers[i]; i++) {
google.maps.event.addListener(marker, 'click', function(e) {
infowindow.setContent('Marker position: ' + this.getPosition());
infowindow.open(map, this);
});
}
I had the same problem but the best answer didn't solve it completely, what I had to do in my for statement was using the this relating to my current marker. Maybe this helps someone.
for(var i = 0; i < markers.length; i++){
name = markers[i].getAttribute("name");
address = markers[i].getAttribute("address");
point = new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng")));
contentString = '<div style="font-family: Lucida Grande, Arial, sans-serif;>'+'<div><b>'+ name +'</b></div>'+'<div>'+ address +'</div>';
marker = new google.maps.Marker({
map: map,
position: point,
title: name+" "+address,
buborek: contentString
});
google.maps.event.addListener(marker, 'click', function(){
infowindow.setContent(this.buborek);
infowindow.open(map,this);
});
marker.setMap(map);
}
a tad late, but I managed to have only one infowindow open by maken infowindow a global variable.
var infowindow = new google.maps.InfoWindow({});
then inside the listner
infowindow.close();
infowindow = new google.maps.InfoWindow({
content: '<h1>'+arrondissement+'</h1>'+ gemeentesFiltered
});
infowindow.open(map, this);
Declare a globar var selectedInfoWindow; and use it to hold the opened info window:
var infoWindow = new google.maps.InfoWindow({
content: content
});
// Open the infowindow on marker click
google.maps.event.addListener(marker, "click", function() {
//Check if there some info window selected and if is opened then close it
if (selectedInfoWindow != null && selectedInfoWindow.getMap() != null) {
selectedInfoWindow.close();
//If the clicked window is the selected window, deselect it and return
if (selectedInfoWindow == infoWindow) {
selectedInfoWindow = null;
return;
}
}
//If arrive here, that mean you should open the new info window
//because is different from the selected
selectedInfoWindow = infoWindow;
selectedInfoWindow.open(map, marker);
});
You need to keep track of your previous InfoWindow object and call the close method on it when you handle the click event on a new marker.
N.B It is not necessary to call close on the shared info window object, calling open with a different marker will automatically close the original. See Daniel's answer for details.
Basically you want one function that keeps reference to one new InfoBox() => delegate the onclick event.
While creating your markers (in a loop) use bindInfoBox(xhr, map, marker);
// #param(project): xhr : data for infoBox template
// #param(map): object : google.maps.map
// #param(marker): object : google.maps.marker
bindInfoBox: (function () {
var options = $.extend({}, cfg.infoBoxOptions, { pixelOffset: new google.maps.Size(-450, -30) }),
infoBox = new window.InfoBox(options);
return function (project, map, marker) {
var tpl = renderTemplate(project, cfg.infoBoxTpl); // similar to Mustache, Handlebars
google.maps.event.addListener(marker, 'click', function () {
infoBox.setContent(tpl);
infoBox.open(map, marker);
});
};
}())
var infoBox is assigned asynchronously and kept in memory. Every time you call bindInfoBox() the return function will be called instead. Also handy to pass the infoBoxOptions only once!
In my example I've had to add an extra param to the map as my initialization is delayed by tab events.
InfoBoxOptions
Here is a solution that doesn't need to create only one infoWindow to reuse it. You can continue creating many infoWindows, the only thing you need is to build a closeAllInfoWindows function, and call it before open a new infowindow.
So, keeping your code, you just need to:
Create a global array to store all the infoWindows
var infoWindows = [];
Store each new infoWindow in the array, just after the infoWindow = new...
infoWindows.push(infoWindow);
Create the closeAllInfoWindows function
function closeAllInfoWindows() {
for (var i=0;i<infoWindows.length;i++) {
infoWindows[i].close();
}
}
In your code, call to closeAllInfoWindows() just before open the infoWindow.
Regards,
One smart easy way to do this with jQuery is the following :
google.maps.event.addListener(marker, 'click', function (e) {
jQuery(".gm-ui-hover-effect").click();
marker.info.open(map, this);
});
It will click on all the closing buttons amongst your tooltips.
My approach allows you to toggle the infoWindow as well.
Global space
var infoWindow = new google.maps.InfoWindow();
infoWindow.setContent(contentString);
var lastInfoWindow;
Local space
marker.addListener("click", (e) => {
if (lastInfoWindow === e.domEvent.srcElement) {
infoWindow.close();
lastInfoWindow = null;
} else {
infoWindow.open({
anchor: marker,
map,
shouldFocus: false,
});
lastInfoWindow = e.domEvent.srcElement;
}
});
Solved it this way:
function window(content){
google.maps.event.addListener(marker,'click', (function(){
infowindow.close();
infowindow = new google.maps.InfoWindow({
content: content
});
infowindow.open(map, this);
}))
}
window(contentHtml);
Google Maps allows you to only have one info window open. So if you open a new window, then the other one closes automatically.

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