How to test whether window.print() is not overriden? - javascript

How to test with (JavaScript and/or) FirefoxDriver whether the window.print() method is overridden?
It is possible to disable all print buttons on a page like with this:
window.print = function() { alert("Bazinga") }
With this a normal "Print" link like the following one is not working anymore:
<a onclick="window.print()">....</a>
I need to check whether a window.print() call executes the original print dialog.
Maybe it is possible to inject some JavaScript into the FirefoxWebdriver?

Since window.print is a native function you can:
if( window.print.toString().indexOf('[native code]') > -1 ) {
//native
}

I've created a fiddle based on Luca's answer and Christoph's comment. This function will detect native print dialog even in IE6.
function isNativePrint() {
var isNative = false;
try {
if (window.print.toString().indexOf('[native code]') > -1) isNative = true;
} catch (e) {
isNative = true;
}
return isNative;
}

Related

CRM 2011 Open a new window after save

Essentially what I need is to run some JavaScript after a record has been saved. This will pick up a guid from a field which has been populated by a plugin. My code looks like;
Xrm.Page.data.entity.save();
var newguid = Xrm.Page.getAttribute("new_copyguid").getValue();
Xrm.Utility.openEntityForm("new_myentity", newguid);
The problem is the code runs past the call to save() and continues executing before a plugin has populated the "new_copyguid" field. Is there a way to wait for the plugin to complete before continuing with the javascript? I have tried AddOnSave() without success. Any javascript callback seems to execute before the plugin finishes as well. The plugin is set to run synchronously.
I am performing this javascript from a button on the form. The button sets a field value and then saves the record, triggering the plugin. The button is a "Copy Entity" button which creates a clone. I need to open this new record in the browser.
I have read that this does not work either, as it happens before the save;
Xrm.Page.data.refresh(save).then(successCallback, errorCallback);
Any pointers would be great!
I think you'll have to run your logic in the OnLoad section. The save should force a refresh and your onload logic will run again. You'll need to do some check to see if the modified on date is within a certain time frame.
Other option is you perform the update manually through a rest call or Soap call, then you can read the value from the plugin in another call.
You can just wait for some seconds by putting this code.
function YourFunction()
{
Xrm.Page.data.entity.save();
OpenForm();
}
Its a new function.
function OpenForm()
{
setTimeout(function () {
var newguid = Xrm.Page.getAttribute("new_copyguid").getValue();
Xrm.Utility.openEntityForm("new_myentity", newguid);
}, 3000);
}
Try this:
function onPageLoad() {
var formType = Xrm.Page.ui.getFormType();
if (formType == 0 || formType == 1) { // 0 = Undefined, 1 = Create
// If form is in Create Mode then
if (Xrm.Page.data != null && Xrm.Page.data.entity != null) {
Xrm.Page.data.entity.addOnSave(onSaveDoThis);
}
}
}
function onSaveDoThis() {
setTimeout(onFormSaveSuccess, 300);
}
function onFormSaveSuccess() {
var newguid = Xrm.Page.getAttribute("new_copyguid").getValue();
if (newguid == "") {
onSaveDoThis();
} else {
// Don't need to trigger the function onSaveDoThis anymore
Xrm.Page.data.entity.removeOnSave(onSaveDoThis);
Xrm.Utility.openEntityForm("new_myentity", newguid);
}
}
Try this:
function OpenForm()
{
setTimeout(function () {
var newguid = Xrm.Page.getAttribute("new_copyguid").getValue();
Xrm.Utility.openEntityForm("new_myentity", newguid);
}, 3000);
}

Determine If Print/Cancel Button in Google Chrome's Print Preview is Clicked

I've been printing my page using the code below:
window.print();
An image below is what the print preview in Google chrome browser looks like. It has two main buttons: print and cancel.
I want to know if the user has clicked the print or cancel buttons. What I did uses jquery:
HTML Code of the Print Preview:
<button class="print default" i18n-content="printButton">Print</button>
<button class="cancel" i18n-content="cancel">Cancel</button>
Jquery Code:
$('button > .cancel').click(function (e) {
alert('Cancel');
});
$('button > .print').click(function (e) {
alert('Print');
});
I tried the code above with no luck. What am I missing?
You can not access Chrome's internal windows (printing dialog in this case) directly from a regular web page.
(function () {
var beforePrint = function () {
alert('Functionality to run before printing.');
};
var afterPrint = function () {
alert('Functionality to run after printing');
};
if (window.matchMedia) {
var mediaQueryList = window.matchMedia('print');
mediaQueryList.addListener(function (mql) {
//alert($(mediaQueryList).html());
if (mql.matches) {
beforePrint();
} else {
afterPrint();
}
});
}
window.onbeforeprint = beforePrint;
window.onafterprint = afterPrint;
}());
Or, If you want to do something when the print preview gets opened, you can try below:
$(document).bind("keyup keydown", function (e) {
if (e.ctrlKey && e.keyCode == 80) {
setTimeout(function () { CallAfterWindowLoad();}, 5000);
return true;
}
});
function CallAfterWindowLoad()
{
alert("Open and call");
}
Reference:
How to capture the click event on the default print menu called by Javascript window.print()
Maybe if you provide your requirements for this two buttons click event, we can provide you an alternate solution.
it is very easily possible:
<body onafterprint="myFunction()">
The myFunction() that you can define within a tag will be fire when either the printing job is done or the cancel button was pressed.
As far as I know, the print preview is not part of any document your JS can access. These might interest you:
Detecting browser print event
ExtJS 4 - detecting if the user pressed "Print" on the print dialog that was called programatically
<script>
window.print();
onafterprint = function () {
window.location.href = "index.html";
}
</script>
This should do the trick. I've used jQuery v2.2.0 which is included in the html file.
$("#print").click(function() { // calls the id of the button that will print
document.body.style.visibility = 'hidden'; //code for hiding the body
document.getElementById('printthis').style.visibility = 'visible'; // div to be printed
document.getElementById('printthis').style.position = 'absolute'; //some code/css for positioning. you can adjust this
document.getElementById('printthis').style.top = '40px';
document.getElementById('printthis').style.left = '0px';
if (print()) { // shows print preview.
} else { // else statement will check if cancel button is clicked.
document.body.style.visibility = 'visible';
document.getElementById('printthis').style.position = '';
document.getElementById('printthis').style.top = '';
document.getElementById('printthis').style.left = '';
alert("Print Canceled");
}
});
I guess this might as well be used as a way to print certain divs in your html. Just hide the body element and only show the div that you want to print with some positioning css. Hope it works in yours. I've tried it and I can say that it worked for me.

How to replace the navigator object on the popup in CasperJS?

How can I replace the navigator object on the popup?
I can replace the navigator by using page.initialized callback, but it has no effect for popups.
In the PhantomJS, I can use something like this:
page.onPageCreated = function (newPage) {
newPage.onInitialized = function () {
newPage.evaluate(function() {
window.navigator = {/*some code*/}
});
}
};
How to do it on CasperJS?
CasperJS is built on top of PhantomJS. Provided it works in PhantomJS, then it will also work in CasperJS.
You can either directly access casper.page to run the same code as in PhantomJS or
You can use the popup.created event handler to do the same in CasperJS:
casper.on("popup.created", function (newPage) {
newPage.onInitialized = function () {
newPage.evaluate(function() {
window.navigator = {/*some code*/}
});
}
});

How to check Popup blocker enabled Without loading popup window in chrome using Javascript [duplicate]

I am aware of javascript techniques to detect whether a popup is blocked in other browsers (as described in the answer to this question). Here's the basic test:
var newWin = window.open(url);
if(!newWin || newWin.closed || typeof newWin.closed=='undefined')
{
//POPUP BLOCKED
}
But this does not work in Chrome. The "POPUP BLOCKED" section is never reached when the popup is blocked.
Of course, the test is working to an extent since Chrome doesn't actually block the popup, but opens it in a tiny minimized window at the lower right corner which lists "blocked" popups.
What I would like to do is be able to tell if the popup was blocked by Chrome's popup blocker. I try to avoid browser sniffing in favor of feature detection. Is there a way to do this without browser sniffing?
Edit: I have now tried making use of newWin.outerHeight, newWin.left, and other similar properties to accomplish this. Google Chrome returns all position and height values as 0 when the popup is blocked.
Unfortunately, it also returns the same values even if the popup is actually opened for an unknown amount of time. After some magical period (a couple of seconds in my testing), the location and size information is returned as the correct values. In other words, I'm still no closer to figuring this out. Any help would be appreciated.
Well the "magical time" you speak of is probably when the popup's DOM has been loaded. Or else it might be when everything (images, outboard CSS, etc.) has been loaded. You could test this easily by adding a very large graphic to the popup (clear your cache first!). If you were using a Javascript Framework like jQuery (or something similar), you could use the ready() event (or something similar) to wait for the DOM to load before checking the window offset. The danger in this is that Safari detection works in a conflicting way: the popup's DOM will never be ready() in Safari because it'll give you a valid handle for the window you're trying to open -- whether it actually opens or not. (in fact, i believe your popup test code above won't work for safari.)
I think the best thing you can do is wrap your test in a setTimeout() and give the popup 3-5 seconds to complete loading before running the test. It's not perfect, but it should work at least 95% of the time.
Here's the code I use for cross-browser detection, without the Chrome part.
function _hasPopupBlocker(poppedWindow) {
var result = false;
try {
if (typeof poppedWindow == 'undefined') {
// Safari with popup blocker... leaves the popup window handle undefined
result = true;
}
else if (poppedWindow && poppedWindow.closed) {
// This happens if the user opens and closes the client window...
// Confusing because the handle is still available, but it's in a "closed" state.
// We're not saying that the window is not being blocked, we're just saying
// that the window has been closed before the test could be run.
result = false;
}
else if (poppedWindow && poppedWindow.test) {
// This is the actual test. The client window should be fine.
result = false;
}
else {
// Else we'll assume the window is not OK
result = true;
}
} catch (err) {
//if (console) {
// console.warn("Could not access popup window", err);
//}
}
return result;
}
What I do is run this test from the parent and wrap it in a setTimeout(), giving the child window 3-5 seconds to load. In the child window, you need to add a test function:
function test() {}
The popup blocker detector tests to see whether the "test" function exists as a member of the child window.
ADDED JUNE 15 2015:
I think the modern way to handle this would be to use window.postMessage() to have the child notify the parent that the window has been loaded. The approach is similar (child tells parent it's loaded), but the means of communication has improved. I was able to do this cross-domain from the child:
$(window).load(function() {
this.opener.postMessage({'loaded': true}, "*");
this.close();
});
The parent listens for this message using:
$(window).on('message', function(event) {
alert(event.originalEvent.data.loaded)
});
Hope this helps.
Just one improvement to InvisibleBacon's snipet (tested in IE9, Safari 5, Chrome 9 and FF 3.6):
var myPopup = window.open("popupcheck.htm", "", "directories=no,height=150,width=150,menubar=no,resizable=no,scrollbars=no,status=no,titlebar=no,top=0,location=no");
if (!myPopup)
alert("failed for most browsers");
else {
myPopup.onload = function() {
setTimeout(function() {
if (myPopup.screenX === 0) {
alert("failed for chrome");
} else {
// close the test window if popups are allowed.
myPopup.close();
}
}, 0);
};
}
The following is a jQuery solution to popup blocker checking. It has been tested in FF (v11), Safari (v6), Chrome (v23.0.127.95) & IE (v7 & v9). Update the _displayError function to handle the error message as you see fit.
var popupBlockerChecker = {
check: function(popup_window){
var _scope = this;
if (popup_window) {
if(/chrome/.test(navigator.userAgent.toLowerCase())){
setTimeout(function () {
_scope._is_popup_blocked(_scope, popup_window);
},200);
}else{
popup_window.onload = function () {
_scope._is_popup_blocked(_scope, popup_window);
};
}
}else{
_scope._displayError();
}
},
_is_popup_blocked: function(scope, popup_window){
if ((popup_window.innerHeight > 0)==false){ scope._displayError(); }
},
_displayError: function(){
alert("Popup Blocker is enabled! Please add this site to your exception list.");
}
};
Usage:
var popup = window.open("http://www.google.ca", '_blank');
popupBlockerChecker.check(popup);
Hope this helps! :)
Rich's answer isn't going to work anymore for Chrome. Looks like Chrome actually executes any Javascript in the popup window now. I ended up checking for a screenX value of 0 to check for blocked popups. I also think I found a way to guarantee that this property is final before checking. This only works for popups on your domain, but you can add an onload handler like this:
var myPopup = window.open("site-on-my-domain", "screenX=100");
if (!myPopup)
alert("failed for most browsers");
else {
myPopup.onload = function() {
setTimeout(function() {
if (myPopup.screenX === 0)
alert("failed for chrome");
}, 0);
};
}
As many have reported, the "screenX" property sometimes reports non-zero for failed popups, even after onload. I experienced this behavior as well, but if you add the check after a zero ms timeout, the screenX property always seems to output a consistent value.
Let me know if there are ways to make this script more robust. Seems to work for my purposes though.
This worked for me:
cope.PopupTest.params = 'height=1,width=1,left=-100,top=-100,location=no,toolbar=no,menubar=no,scrollbars=no,resizable=no,directories=no,status=no';
cope.PopupTest.testWindow = window.open("popupTest.htm", "popupTest", cope.PopupTest.params);
if( !cope.PopupTest.testWindow
|| cope.PopupTest.testWindow.closed
|| (typeof cope.PopupTest.testWindow.closed=='undefined')
|| cope.PopupTest.testWindow.outerHeight == 0
|| cope.PopupTest.testWindow.outerWidth == 0
) {
// pop-ups ARE blocked
document.location.href = 'popupsBlocked.htm';
}
else {
// pop-ups are NOT blocked
cope.PopupTest.testWindow.close();
}
The outerHeight and outerWidth are for chrome because the 'about:blank' trick from above doesn't work in chrome anymore.
I'm going to just copy/paste the answer provided here: https://stackoverflow.com/a/27725432/892099 by DanielB . works on chrome 40 and it's very clean. no dirty hacks or waiting involves.
function popup(urlToOpen) {
var popup_window=window.open(urlToOpen,"myWindow","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=yes, width=400, height=400");
try {
popup_window.focus();
}
catch (e) {
alert("Pop-up Blocker is enabled! Please add this site to your exception list.");
}
}
How about a Promise approach ?
const openPopUp = (...args) => new Promise(s => {
const win = window.open(...args)
if (!win || win.closed) return s()
setTimeout(() => (win.innerHeight > 0 && !win.closed) ? s(win) : s(), 200)
})
And you can use it like the classic window.open
const win = await openPopUp('popuptest.htm', 'popuptest')
if (!win) {
// popup closed or blocked, handle alternative case
}
You could change the code so that it fail the promise instead of returning undefined, I just thought that if was an easier control flow than try / catch for this case.
Check the position of the window relative to the parent. Chrome makes the window appear almost off-screen.
I had a similar problem with popups not opening in Chrome. I was frustrated because I wasn't trying to do something sneaky, like an onload popup, just opening a window when the user clicked. I was DOUBLY frustrated because running my function which included the window.open() from the firebug command line worked, while actually clicking on my link didn't! Here was my solution:
Wrong way: running window.open() from an event listener (in my case, dojo.connect to the onclick event method of a DOM node).
dojo.connect(myNode, "onclick", function() {
window.open();
}
Right way: assigning a function to the onclick property of the node that called window.open().
myNode.onclick = function() {
window.open();
}
And, of course, I can still do event listeners for that same onclick event if I need to. With this change, I could open my windows even though Chrome was set to "Do not allow any site to show pop-ups". Joy.
If anyone wise in the ways of Chrome can tell the rest of us why it makes a difference, I'd love to hear it, although I suspect it's just an attempt to shut the door on malicious programmatic popups.
Here's a version that is currently working in Chrome. Just a small alteration away from Rich's solution, though I added in a wrapper that handles the timing too.
function checkPopupBlocked(poppedWindow) {
setTimeout(function(){doCheckPopupBlocked(poppedWindow);}, 5000);
}
function doCheckPopupBlocked(poppedWindow) {
var result = false;
try {
if (typeof poppedWindow == 'undefined') {
// Safari with popup blocker... leaves the popup window handle undefined
result = true;
}
else if (poppedWindow && poppedWindow.closed) {
// This happens if the user opens and closes the client window...
// Confusing because the handle is still available, but it's in a "closed" state.
// We're not saying that the window is not being blocked, we're just saying
// that the window has been closed before the test could be run.
result = false;
}
else if (poppedWindow && poppedWindow.outerWidth == 0) {
// This is usually Chrome's doing. The outerWidth (and most other size/location info)
// will be left at 0, EVEN THOUGH the contents of the popup will exist (including the
// test function we check for next). The outerWidth starts as 0, so a sufficient delay
// after attempting to pop is needed.
result = true;
}
else if (poppedWindow && poppedWindow.test) {
// This is the actual test. The client window should be fine.
result = false;
}
else {
// Else we'll assume the window is not OK
result = true;
}
} catch (err) {
//if (console) {
// console.warn("Could not access popup window", err);
//}
}
if(result)
alert("The popup was blocked. You must allow popups to use this site.");
}
To use it just do this:
var popup=window.open('location',etc...);
checkPopupBlocked(popup);
If the popup get's blocked, the alert message will display after the 5 second grace period (you can adjust that, but 5 seconds should be quite safe).
This fragment incorporates all of the above - For some reason - StackOverflow is excluding the first and last lines of code in the code block below, so I wrote a blog on it. For a full explanation and the rest of the (downloadable) code have a look at
my blog at thecodeabode.blogspot.com
var PopupWarning = {
init : function()
{
if(this.popups_are_disabled() == true)
{
this.redirect_to_instruction_page();
}
},
redirect_to_instruction_page : function()
{
document.location.href = "http://thecodeabode.blogspot.com";
},
popups_are_disabled : function()
{
var popup = window.open("http://localhost/popup_with_chrome_js.html", "popup_tester", "width=1,height=1,left=0,top=0");
if(!popup || popup.closed || typeof popup == 'undefined' || typeof popup.closed=='undefined')
{
return true;
}
window.focus();
popup.blur();
//
// Chrome popup detection requires that the popup validates itself - so we need to give
// the popup time to load, then call js on the popup itself
//
if(navigator && (navigator.userAgent.toLowerCase()).indexOf("chrome") > -1)
{
var on_load_test = function(){PopupWarning.test_chrome_popups(popup);};
var timer = setTimeout(on_load_test, 60);
return;
}
popup.close();
return false;
},
test_chrome_popups : function(popup)
{
if(popup && popup.chrome_popups_permitted && popup.chrome_popups_permitted() == true)
{
popup.close();
return true;
}
//
// If the popup js fails - popups are blocked
//
this.redirect_to_instruction_page();
}
};
PopupWarning.init();
Wow there sure are a lot of solutions here. This is mine, it uses solutions taken from the current accepted answer (which doesn't work in latest Chrome and requires wrapping it in a timeout), as well as a related solution on this thread (which is actually vanilla JS, not jQuery).
Mine uses a callback architecture which will be sent true when the popup is blocked and false otherwise.
window.isPopupBlocked = function(popup_window, cb)
{
var CHROME_CHECK_TIME = 2000; // the only way to detect this in Chrome is to wait a bit and see if the window is present
function _is_popup_blocked(popup)
{
return !popup.innerHeight;
}
if (popup_window) {
if (popup_window.closed) {
// opened OK but was closed before we checked
cb(false);
return;
}
if (/chrome/.test(navigator.userAgent.toLowerCase())) {
// wait a bit before testing the popup in chrome
setTimeout(function() {
cb(_is_popup_blocked(popup_window));
}, CHROME_CHECK_TIME);
} else {
// for other browsers, add an onload event and check after that
popup_window.onload = function() {
cb(_is_popup_blocked(popup_window));
};
}
} else {
cb(true);
}
};
Jason's answer is the only method I can think of too, but relying on position like that is a little bit dodgy!
These days, you don't really need to ask the question “was my unsolicited popup blocked?”, because the answer is invariably “yes” — all the major browsers have the popup blocker turned on by default. Best approach is only ever to window.open() in response to a direct click, which is almost always allowed.
HI
I modified the solutions described above slightly and think that it is working for Chrome at least.
My solution is made to detect if popup is blocked when the main page is opened, not when popup is opened, but i am sure there are some people that can modify it.:-)
The drawback here is that the popup-window is displayed for a couple of seconds (might be possible to shorten a bit) when there is no popup-blocker.
I put this in the section of my 'main' window
<script type="text/JavaScript" language="JavaScript">
var mine = window.open('popuptest.htm','popuptest','width=1px,height=1px,left=0,top=0,scrollbars=no');
if(!mine|| mine.closed || typeof mine.closed=='undefined')
{
popUpsBlocked = true
alert('Popup blocker detected ');
if(mine)
mine.close();
}
else
{
popUpsBlocked = false
var cookieCheckTimer = null;
cookieCheckTimer = setTimeout('testPopup();', 3500);
}
function testPopup()
{
if(mine)
{
if(mine.test())
{
popUpsBlocked = false;
}
else
{
alert('Popup blocker detected ');
popUpsBlocked = true;
}
mine.close();
}
}
</script>
The popuptest looks like this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Popup test</title>
<script type="text/javascript" language="Javascript">
function test() {if(window.innerHeight!=0){return true;} else return false;}
</script>
</head>
<body>
</body>
</html>
As i call the test-function on the popup-page after 3500 ms the innerheight has been set correctly by Chrome.
I use the variable popUpsBlocked to know if the popups are displayed or not in other javascripts.
i.e
function ShowConfirmationMessage()
{
if(popUpsBlocked)
{
alert('Popups are blocked, can not display confirmation popup. A mail will be sent with the confirmation.');
}
else
{
displayConfirmationPopup();
}
mailConfirmation();
}
function openPopUpWindow(format)
{
var win = window.open('popupShow.html',
'ReportViewer',
'width=920px,height=720px,left=50px,top=20px,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=1,maximize:yes,scrollbars=0');
if (win == null || typeof(win) == "undefined" || (win == null && win.outerWidth == 0) || (win != null && win.outerHeight == 0) || win.test == "undefined")
{
alert("The popup was blocked. You must allow popups to use this site.");
}
else if (win)
{
win.onload = function()
{
if (win.screenX === 0) {
alert("The popup was blocked. You must allow popups to use this site.");
win.close();
}
};
}
}
As far as I can tell (from what I've tested) Chrome returns a window object with location of 'about:blank'.
So, the following should work for all browsers:
var newWin = window.open(url);
if(!newWin || newWin.closed || typeof newWin.closed=='undefined' || newWin.location=='about:blank')
{
//POPUP BLOCKED
}

JQuery not working in Chrome but Firefox is fine

I have troubles with simple Javascript code which works in Firefox and not in Chrome.
here is my function
function ToggleArrow(id1, id2)
{
var display = window.getComputedStyle(id1).getPropertyValue('display');
if (display=="none") {
$(id2).fadeToggle(100, function(){$(id1).fadeToggle(100);});
} else {
$(id1).fadeToggle(100, function(){$(id2).fadeToggle(100);});
}
}
Chrome is actually not even passing the first line.
Since you are using jQuery you can use .is(':visible')
function ToggleArrow(id1, id2)
{
if (!$(id1).is(':visible')) // If not visible
$(id2).fadeToggle(100, function(){$(id1).fadeToggle(100);});
else
$(id1).fadeToggle(100, function(){$(id2).fadeToggle(100);});
}
Simple DEMO.

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