I am trying to open a new pop up for my application, and each popup has a window name. Suppose if the user closes the popup he can open the popup with same name, else the existing pop up should be displayed.
I wrote the below code to do that, but this is not opening a popup if the user closes it else its opening a new popup. Please suggest how can go with this.
d='javascript:if(document.getElementsByTagName("*").length>0&&document.getElementsByTagName("body")[0].innerHTML!=""&&!confirm("You are about to navigate to home page Do you want to do that ? "))
{opener.display2WindowHelp();}
else
{window.location.replace("${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort}${pageContext.request.contextPath}'+d+'");
}';
b= window.open(d,"_spor_window_"+a+window.location.hostname.replace(/\./g,""),"menubar=no,scrollbars=yes,height="+screen.availHeight+",width="+screen.availWidth+",left=0,top=0,resizable=yes,toolbar=no,location=no,status=no");
If you need to open any popups, there are likely better ways to meet your requirements. If you are opening several popups, then your design needs a thorough review (consider your workflow and whether a tabbed interface is a better option).
The usual strategy is to save a reference to each window, then check if it's still open and available for re-use later, e.g.
var popWin;
function openWindow(url) {
var windowName = '...';
var features = '...';
if (!popWin || popWin.closed) {
popWin = window.open(url, windowName, features);
} else {
popWin.location.href = url;
}
}
If you want to have multiple windows open, then you will need a strategy for tracking which one you want to load a particular resource into.
You may find the HTML5 window (creating and navigating contexts by name) and MDN window.open documentation useful.
Related
Im trying to open multiple pop ups at the same time. I tried using loops, but it didnt work.I don't understand why this doesn't work. Is there a better way to do this? My code:
js:
function myFunction() {
for (var i = 0; i < 5; i++) {
window.open("", "MsgWindow", "width=400, height=200");
}
}
html:
<button onclick="myFunction()">Try</button>
The second argument to window.open() must be unique for it to open a new window or must be set to "_blank".
From the MDN page for window.open():
var windowObjectReference = window.open(strUrl, strWindowName, [strWindowFeatures]);
If a window with the name strWindowName already exists, then strUrl is
loaded into the existing window. In this case the return value of the
method is the existing window and strWindowFeatures is ignored.
Providing an empty string for strUrl is a way to get a reference to an
open window by its name without changing the window's location. To
open a new window on every call of window.open(), use the special
value "_blank" for strWindowName.
Note: most browsers these days have popup blockers built in. Those popup blockers will generally allow one new window to be opened when it is the direct result of a mouse click, but they may impose limits if the code is trying to open lots of windows. This popup blocker behavior is not per some specification so it likely varies in detailed implementation from browser to browser.
I am using window.open in jquery to open a link in a new tab. Works fine for me in chrome/safari/firefox, but it does not work in IE10.
$('.div').click(function() {
$(this).target = "_blank";
window.open('http://url/15M');
return false;
});
How can I fix this?
The browser itself will decide when it's appropriate to open a new tab versus a new window, though you can influence its decision via browser settings. That being said, there are often times certain things we can do to encourage one way over the other. In this particular instance, I was able to get IE10 to open a window by passing along width and height values:
$("button").on("click", function () {
window.open("http://msdn.microsoft.com", "popup", "width=640,height=480");
});
Keep in mind that you ultimately have no control over whether something opens in a new tab, or a new window. That is entirely up to the user's machine; so don't bake any user experience dependencies into this assumption.
Try following:
$('.div').click(function() {
window.open('http://url/15M', '_blank');
return false;
});
I have a link on my site that opens a new window to a page that plays a very long audio file. My current script works fine to open the page and not refresh if the link is clicked multiple times. However, when I have moved to a seperate page on my site and click this link again, it reloads. I am aware that when the parent element changes, I will lose my variable and thus I will need to open the window, overiding the existing content. I am trying to find a solution around that. I would prefer not to use a cookie to achieve this, but I will if required.
My script is as follows:
function OpenWindow(){
if(typeof(winRef) == 'undefined' || winRef.closed){
//create new
winRef = window.open('http://samplesite/page','winPop','sampleListOfOptions');
} else {
//give it focus (in case it got burried)
winRef.focus();
}
}
You should first to call winRef = window.open("", "winPopup") without URL - this will return a window, if it exists, without reloading. And only if winRef is null or empty window, then create new window.
Here is my test code:
var winRef;
function OpenWindow()
{
if(typeof(winRef) == 'undefined' || winRef.closed)
{
//create new
var url = 'http://someurl';
winRef = window.open('', 'winPop', 'sampleListOfOptions');
if(winRef == null || winRef.document.location.href != url)
{
winRef = window.open(url, 'winPop');
}
}
else
{
//give it focus (in case it got burried)
winRef.focus();
}
}
It works.
Thanks to Stan and http://ektaraval.blogspot.ca/2011/05/how-to-set-focus-to-child-window.html
My solution creates a breakout pop-up mp3 player that remains active site wide and only refreshes if the window is not open prior to clicking the link button
function OpenWindow(){
var targetWin = window.open('','winPop', 'sample-options');
if(targetWin.location == 'about:blank'){
//create new
targetWin.location.href = 'http://site/megaplayer';
targetWin.focus();
} else {
//give it focus (in case it got burried)
targetWin.focus();
}
}
Like you said, after navigating away from original page you're losing track of what windows you may have opened.
As far as I can tell, there's no way to "regain" reference to that particular window. You may (using cookies, server side session or whatever) know that window was opened already, but you won't ever have a direct access to it from different page (even on the same domain). This kind of communication between already opened windows may be simulated with help of ajax and server side code, that would serve as agent when sharing some information between two windows. It's not an easy nor clean solution however.
I use window.open to populate a new window with varying content. Mostly reports and stored HTML from automated processes.
I have noticed some very inconsistent behavior with Chrome with respect to window.open().
Some of my calls will create a new tab (preferred behavior) and some cause popups.
var w = window.open('','_new');
w.document.write(page_content);
page_content is just regular HTML from AJAX calls. Reports contain some information in the header like title, favicon, and some style sheets.
In IE9 the code does cause a new tab instead of a pop-up, while Chrome flatly refuses to show the content in question in a new tab. Since the content is sensitive business data I cannot post it here. I'll answer questions if I can.
I know some people will say this is behavior left up to the user, but this is an internal business platform. We don't have time to train all the users on how to manage popups, and we just need it to be in a new tab. Heck, even a new window would be preferable to the popup since you cannot dock a popup in Chrome. Not to mention none of the popup blocking code would affect it.
Appreciate any insight.
window.open must be called within a callback which is triggered by a user action (example onclick) for the page to open in a new tab instead of a window.
Example:
$("a.runReport").click(function(evt) {
// open a popup within the click handler
// this should open in a new tab
var popup = window.open("about:blank", "myPopup");
//do some ajax calls
$.get("/run/the/report", function(result) {
// now write to the popup
popup.document.write(result.page_content);
// or change the location
// popup.location = 'someOtherPage.html';
});
});
You can try this:
open a new tab please
<script>
function openWindow(){
var w = window.open("about:blank");
w.document.write("heheh new page opened");
}
</script>
Is very easy, in order to force Chrome to open in a new tab, use the onmouseup event
onmouseup="switchMenu(event);"
I have tried this and it worked fine in chrome. If opening a new tab is on a user action(such as a mouse click) this will work fine without any issues. But if the code is executed in another script block, you may need to enable pop-ups in chrome. Looks like this is to handle all the click-bait sites.
let newTab = window.open('', '_blank');
if (this.viewerTab == null) {
console.log("opening in new tab to work, pop-ups should be enabled.");
return;
}
................
newTab.location.href = viewerUrl;
window.open('page.html', '_newtab');
Specify the '_newtab'. This works in IE and FF, and should work in Chrome. But if the user has things configured to not open in new tab then not much you can do.
i have Problem with opening popups in javascript i have this function to open my popups in IE6 and IE7:
function open_window(Location,w,h) //opens new window
{
var win = "width="+w+",height="+h+",menubar=no,location=no,resizable,scrollbars,top=500,left=500";
alert(win) ;
window.open(Location,'newWin',win).focus();
}
it's working . i mean my new window opens but an error occurs. The Error Message is :
'window.open(...)' is null is not an object.
do you want to countinue running script on this page ?
then i have button in onclick event it's will call a function to close current window an refresh the opener function is
function refreshParent(location)
{
window.opener.location.href = location ;
window.close();
}
it's also gives me error : window.opener.location is null or not an object but i'm sure i'm passing correct parameters
i call it like this :
for second part :
<input type="button" name="pay" value="test" onclick="refreshParent('index.php?module=payment&task=default')" >
for first part :
<a onclick="javascript:open_window('?module=cart&task=add&id=<?=$res[xproductid]?>&popup=on','500' , '500')" style="cursor:pointer" id="addtocard"> <img src="../images/new_theme/buy_book.gif" width="123" border="0"/> </a>
it's really confuse me . Please Help ;)
When popup windows opened using window.open are blocked by a popup blocker, a feature of pretty much any modern browser these days, the return value of window.open() is not a window object, but null.
In order to circumvent these issues you would need to test the value returned by window.open() before attempting to invoke any methods on it.
Below is a piece of code to demonstrate how to go around this problem:
function open_window(Location,w,h) //opens new window
{
var options = "width=" + w + ",height=" + h;
options += ",menubar=no,location=no,resizable,scrollbars,top=500,left=500";
var newwin = window.open(Location,'newWin',options);
if (newwin == null)
{
// The popup got blocked, notify the user
return false;
}
newwin.focus();
}
In general, popup windows should be used only as a last resort or in controlled environments (internal company website, etc). Popup blockers tend to behave in very inconsistent ways and there may be more than a single popup blocker installed in a given browser so instructing the user on how to allow popups for a given website is not necessarily a solution. Example: IE7 + Google toolbar = two popup blockers.
If I may suggest, perhaps you should consider using something like this:
http://jqueryui.com/demos/dialog/
The advantages are numerous:
Skinnable, so you can create a more consistent look to match your website.
No popup blockers.
Good API and documentation that is consistent across most, if not all, major browsers.
If you still require that the newly opened "window" contain an external URL, you could use an IFRAME inside the opened dialog window.
Hope this helps,
Lior.
Works perfectly fine for me. Tested in IE6/7/8.
Of course I couldn't test it with your URLs so I replaced these with simple filenames. I'd suggest you try it also with simple filenames and see if it also fails then.
Beside that...
You don't need to add "javascript:" at the beginning of onclick attribute value.
It would also be good if you added a href="..." attribute to the link with the same URL that you give to open_window. Then it would become a real link and you wouldn't have to add cursor:pointer to it. For example:
<a href="?module=cart&task=add&id=<?=$res[xproductid]?>&popup=on"
onclick="open_window(this.href, '500' , '500'); return false;"> ...
Here is a way to have your cake and eat it too
I have not tested it on all browsers but it should really work
function open_window(url,target,w,h) { //opens new window
var parms = "width="+w+",height="+h+",menubar=no,location=no,resizable,scrollbars,top=500,left=500";
var win = window.open(url,target,parms);
if (win) {
win.focus();
return false; // cancel the onClick
}
return true; // make the link perform as normal
}
Using the link
<a href="?module=cart&task=add&id=<?=$res[xproductid]?>&popup=on"
target="newWin"
onclick="return open_window(this.href,this.target,500,500)"
id="addtocard"><img src="../images/new_theme/buy_book.gif" width="123" border="0"/></a>
which even saves you the silly cursor thing since it is an actual link which works even when JS is turned off