Re: getOffsetHeight returns 0 although onload has been called
getOffsetHeight() of an element which *display* property was set to *none*will always return 0 -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/0X-b56QdlBQJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
Make sure your widget is attached (check the attached property) before requesting the widget for any dimensions. Example: in my animation components I always first check that the widget is attached as otherwise the animations are based on (most of the time) incorrect dimensions as the browser didn't had time to render them correctly. This check overcomes a lot of problems. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
Thank you for your suggestions, however, the display property is not set to none, actually is not set at all. Thanks, G -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/7EoLdpEd_REJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
t @Vitrums I am convinced that my problem is caused because the property display is set to none, however I don't know how to solve it. I could add an AnimationCallback on the decklayoutPanel to find out when the widget is finally being displayed, but that kinda defeats the use of Activity.start() LazyLoading and how to implement this? Any suggestions? Many thanks for your help so far! -G -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/-JrQ5PYjQcAJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
Use firebug to analyze your problem. If it's your display property then change this by widget.getElement().getStyle().setDisplay(Display.BLOCK) (can be little different). By default the Display property is set to auto so if you aren't setting it, it wouldn't give you any problem. On Nov 30, 1:19 pm, George Agiasoglou george.agiasog...@newsint.co.uk wrote: t @Vitrums I am convinced that my problem is caused because the property display is set to none, however I don't know how to solve it. I could add an AnimationCallback on the decklayoutPanel to find out when the widget is finally being displayed, but that kinda defeats the use of Activity.start() LazyLoading and how to implement this? Any suggestions? Many thanks for your help so far! -G -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
The problem is that I call getOffsetHeight/Width on a panel which belongs to a widget which has display property set to none. The display property is set to none because that widget is not currently displayed by the decklayoutpanel but it is attached to it, which is the desired behaviour. I am using firebug and chrome dev tools extensively. To use those tools, that means that your view is layed out in the browser so everything is fine. The DeckLayoutPanel sets disiplay: none to all its children apart from the one currently being displayed. I tried, to postpone the call to getOffsetHeight after deckLayoutPanel.setWidget(widget) but still returned 0. Thanks, G pulls his hair :( -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/yWhVRKHQDakJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
getOffsetHeight/Width only returns a value other than 0 if the element has
been successfully rendered by the browser (possibly including elements that
have visibility:hidden css).
When you call DeckLayoutPanel.setWidget(w) the DeckLayoutPanel schedules a
layout command which will be executed after all of your code has been
executed and just before the browser takes back control (see:
Scheduler.get().scheduleFinally()). I think this has been done because you
could call DeckLayoutPanel.setWidget() multiple times in your code, but
when your code is done, the necessary DOM operations will be executed only
once.
You can force the DOM operations by calling DeckLayoutPanel.forceLayout()
just after you have called DeckLayoutPanel.setWidget() and then try to do
your calculations. But I am not quite sure if its enough. If not, your best
bet is to defer your calculations until everything has been rendered by the
browser:
final Panel p = ...
Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() {
public void run() {
p.getOffsetHeight() ... //calculate your stuff
}
});
Using a deferred command should definitely work.
-- J.
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Re: getOffsetHeight returns 0 although onload has been called
You don't need getOffsetHeight to achieve what you want. There are two solutions: 1. Use LayoutPanel instead of DockLayoutPanel. LayoutPanel allows you to add two widgets that occupy the same space. If you don't specify the position of each child widget, each child widget will occupy the entire space available. From this moment all you need to do is hide one of them depending on where users clicks. 2. When necessary, detach one widget and attach the other one. In each case these widgets should pick up their size automatically from their parent widget - there is no need to set their size explicitly as long as you use widgets that support resize. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
Unfortunately, I need the width and height of the area because I append that information on a url. I will try the deferred command and let you know. Many thanks, G -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/RDqZBFHY9mcJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: getOffsetHeight returns 0 although onload has been called
Absolutely brilliant, the deferred command worked like a charm. Many thanks to all of you! -G -- Please consider the environment before printing this e-mail The Newspaper Marketing Agency: Opening Up Newspapers: http://www.nmauk.co.uk/ This e-mail and any attachments are confidential, may be legally privileged and are the property of NI Group Limited (which is the holding company for the News International group, is registered in England under number 81701 and whose registered office is 3 Thomas More Square, London E98 1XY, VAT number GB 243 8054 69), on whose systems they were generated. If you have received this e-mail in error, please notify the sender immediately and do not use, distribute, store or copy it in any way. Statements or opinions in this e-mail or any attachment are those of the author and are not necessarily agreed or authorised by NI Group Limited or any member of its group. NI Group Limited may monitor outgoing or incoming emails as permitted by law. It accepts no liability for viruses introduced by this e-mail or attachments. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/x_-jcUPFoc0J. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
getOffsetHeight returns 0 although onload has been called
Hi group,
Consider an application which has a *DeckLayoutPanel* as a shell, and has
two DockLayoutPanel as children, which means only one child is shown at any
time. I am using MVP with Activities and Places, there are two places and
each place corresponds to displaying a child.
When the app is initialised both children are injected (by gin) and added
to the *DeckLayoutPanel.*
And looks like
class MyApplication {
MyApplication(DockLayoutPanel child1, DockLayoutPanel child2) {
...
}
...
}
Application displays child1, user changes to other place to display child2.
Everything is displayed fine however I need to calculate an area
using getOffsetHeight and getOffsetWidth, however both calls return 0. If
now I change the token of the place in the url to another valid token both
calls return actual values.
Any ideas why this is happening?
Thanks,
G
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The Newspaper Marketing Agency: Opening Up Newspapers:
http://www.nmauk.co.uk/
This e-mail and any attachments are confidential, may
be legally privileged and are the property of NI Group
Limited (which is the holding company for the News
International group, is registered in England under number
81701 and whose registered office is 3 Thomas More Square,
London E98 1XY, VAT number GB 243 8054 69),
on whose systems they were generated.
If you have received this e-mail in error, please notify
the sender immediately and do not use, distribute, store
or copy it in any way.
Statements or opinions in this e-mail or any attachment
are those of the author and are not necessarily agreed
or authorised by NI Group Limited or any member of its
group.
NI Group Limited may monitor outgoing or incoming
emails as permitted by law. It accepts no liability
for viruses introduced by this e-mail or attachments.
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