Hi,
I am confused about the differences between this.window.foc us(),
window.focus(), and this.focus().
I want to use the calls in a <body onload="..."tag . What are the
differences between these forms that may make one succeed and another
fail? In particular, this.window.foc us() fails in Opera 9.10 with an
"object not found", and windows.focus() succeeds in Opera 9.10, Firefox
2.02, and IE 7.
Roger
4  67972 
On Mar 8, 3:32 pm, Roger <crosseyedpeng. ..@cox.netwrote :
Hi,
I am confused about the differences between this.window.foc us(),
window.focus(), and this.focus().
I want to use the calls in a <body onload="..."tag . What are the
differences between these forms that may make one succeed and another
fail?
this.window.foc us()
When used in-line in the body tag, 'this' refers to the body element.
In a standard DOM, the body element doesn't have a window property;
trying to call a method of a non-existent property will result in a
script error.
window.focus()
This calls the focus method of the window object, which should work in
standards-compliant browsers though it may not have any effect. Some
browsers provide user configurable settings so that users can prevent
script from raising or lowering windows.
this.focus()
This will attempt to call the focus method of the body element. The
W3C DOM 2 HTMLBodyElement interface doesn't define a focus method,
therefore it's likely to fail in most (if not all) browsers.
In particular, this.window.foc us() fails in Opera 9.10 with an
"object not found", and windows.focus() succeeds in Opera 9.10, Firefox
2.02, and IE 7.
Entirely expected (allowing for the typo of "windows.fo cus" rather
than "window.focus") .
--
Rob
RobG wrote:
On Mar 8, 3:32 pm, Roger <crosseyedpeng. ..@cox.netwrote :
>Hi,
I am confused about the differences between this.window.foc us(),
window.focus() , and this.focus().
I want to use the calls in a <body onload="..."tag . What are the
differences between these forms that may make one succeed and another
fail?
this.window.foc us()
When used in-line in the body tag, 'this' refers to the body element.
In a standard DOM, the body element doesn't have a window property;
trying to call a method of a non-existent property will result in a
script error.
window.focus()
This calls the focus method of the window object, which should work in
standards-compliant browsers though it may not have any effect. Some
browsers provide user configurable settings so that users can prevent
script from raising or lowering windows.
this.focus()
This will attempt to call the focus method of the body element. The
W3C DOM 2 HTMLBodyElement interface doesn't define a focus method,
therefore it's likely to fail in most (if not all) browsers.
>In particular, this.window.foc us() fails in Opera 9.10 with an
"object not found", and windows.focus() succeeds in Opera 9.10, Firefox
2.02, and IE 7.
Entirely expected (allowing for the typo of "windows.fo cus" rather
than "window.focus") .
--
Rob
Thank you. If you write a book I will buy a copy.
The use for the above is to open a popup window with help info for a
complicated form. The intended use is for the user to read the help,
close the window and continue filling out the form.
In some cases, the user will click the parent window after reading the
help info and hide the help window. Since I am using named windows to
avoid users opening multiple copies of the same popup help window, some
means of giving focus to an old copy of the help window is necessary,
else the user will click the help link and nothing appears to happen.
My googling has found advice for yet another variation, that is to add
the focus call to the script opening the window. Something like:
url = 'someURL';
newwindow = window.open(url ,'myhelp','heig ht=600,....top= 0');
newwindow.focus ();
The above would appear to have no advantage over the <body onload...>
variation. Is there some obscure advantage to doing it this way --
would the help window gain focus faster if it takes a "long" time to
load? If the user's browser denies a script from lowering/raising
windows then all methods will fail equally, right?
Roger
On Mar 8, 9:39 am, Roger <crosseyedpeng. ..@cox.netwrote :
The use for the above is to open a popup window with help info for a
complicated form. The intended use is for the user to read the help,
close the window and continue filling out the form.
In some cases, the user will click the parent window after reading the
help info and hide the help window. Since I am using named windows to
avoid users opening multiple copies of the same popup help window, some
means of giving focus to an old copy of the help window is necessary,
else the user will click the help link and nothing appears to happen.
use divs (like on yahoo new account page) but if you have to use
window popups :
--
url='someUrl'
newWin=window.o pen(url,"helpWi n","features ")
newWin.window.f ocus
Roger wrote :
Hi,
I am confused about the differences between this.window.foc us(),
window.focus(), and this.focus().
I want to use the calls in a <body onload="..."tag . What are the
differences between these forms that may make one succeed and another
fail? In particular, this.window.foc us() fails in Opera 9.10 with an
"object not found", and windows.focus() succeeds in Opera 9.10, Firefox
2.02, and IE 7.
Roger
You probably want to use
if(self.focus)
{
self.focus();
};
and then you may not need to do so when a secondary window is created
for the first time... a very typical error done in many scripts.
Pretty much every .focus() call has become suspect nowadays since a wide
majority of browsers in use these days are tab-capable browsers and each
and all the browsers you mention (Opera 9.10, Firefox 2.02, and IE 7)
allow users (in preferences settings) to cancel the raising of windows
and can force the opening of new secondary windows into the current tab
or into a new tab.
Gérard
--
Using Web Standards in your Web Pages (Updated Dec. 2006) http://developer.mozilla.org/en/docs...your_Web_Pages This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: dan |
last post by:
This works in mozilla but I can't figure out why this won't work in
IE.
Say I have this html
<html>
header goes here
header goes here
|
by: chris kramer |
last post by:
i have an application that allows you to Select some text in a window,
but no option to Copy it to the clipboard (nor does Ctrl-C or
Shift-insert work, or right click etc..) i want to get these values
somehow.
below is the best posted method i have found online.
if anyone can elaborate, as to how to implement such message passing
(as a...
|
by: Shang Wenbin |
last post by:
Hi,
When I want to close the current window using window.close() in IE6.0,
there will be a confirm box that: The web page you are viewing is trying
to close the window. Do you want to close this window?
I have to click yes to close the window.
How can I close the current window directly without this dialog box?
Thank you.
|
by: Csaba Gabor |
last post by:
Up until a few weeks ago, javascript code like
window.open("http://mydomain.com", "windowName");
would always bring my new or reused window to the top, with focus.
Lately, Firefox (Deer park alpha 2) only brings it to the top if the
window is new. If it's being reused, the window does not come to
the foreground (with IE 6 it does).
Is...
|
by: stephen |
last post by:
I have created an order form that users javascript to create a new html
document when the customers clicks the "print page" button.
Once the new document has been created it then prints the document and
closes it with the following code:
<body onload="window.print(); window.close();">
This works correctly (or at least the way I expect...
| | |
by: Roger Withnell |
last post by:
Is it possible to test if a window or frame is in focus?
Posted Via Usenet.com Premium Usenet Newsgroup Services
----------------------------------------------------------
** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
http://www.usenet.com
|
by: dibakar |
last post by:
Hello
I want to open a window using Window.showModalDialog once i click
inside of a TextBox.And that window need to come just under the
TextBox,so that it seems to a same control.
So,what will be its code in javascript?
|
by: =?Utf-8?B?amFtZXNAbm9zcGFtLmNvbQ==?= |
last post by:
When processing the OnGotFocus event, I need to know the window/control that
lost the focus. Is there a way to determint this?
With MFC, you could use OnSetFocus which passed you the window that lost the
focus. It there something similar with a c# control.
|
by: kalyangvd |
last post by:
Hi Guys,
I am trying to get the Field Id from the Parent Window in the pop up window using window.opener ex:
var var1 = window.opener.document.getElementById("text1").value;
alert(var1);
I also used as window.opener.document.loginForm.text1.value but the field value is not getting in the pop up window. What am i missing here. ...
|
by: kurt sune |
last post by:
Hello, I have a weird problem, I hope someone can explain this for me.
I have a webpage using masterpage.
In it I create a popup window using this code:
Dim js As String = "<script language=javascript>"
js &= "var newWin = window.showModalDialog('InkommetVi.aspx"
js &= "',null,"
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it. ...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert...
| | |
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating...
| |
