So I am just wondering if anyone knows the correct way to close a popup in JavaFX 8. For example if I have a cancel button on my popup what method should I use to get rid of the popup when the cancel button is pressed? I am currently just using the hide() method. This scares me a little bit because I am not sure if the popup is lingering in the background somewhere and still needs to closed. However, when I look at the java docs here I don't see any close() method, I also don't see a close() method in my IDE autocomplete. I do see onCloseRequest() and such in the docs though, so I guess my real question is this; does the hide() method close the popup? If not what does? Thanks!
Yes, hide() is enough.
Also make sure you don't store any reference to the Popup once you don't need it anymore, so that it can be garbage collected.
Related
I'm trying to place a small label hinting the user the keyboard shortcut bound to it, which works fine.
The problem arises when I'm leaving the button. The label disappears, but not quite. If I try to click the button in the area the label "used" to be, it won't fire, indicating that's it's somehow still there. So I thought maybe buttons have a Leave event already built in that raises them to the top level. I decided to try and override that, and basically tell the button go (or better yet, just stay) below the key-hint label hit_button.bind("<Leave>", hit_button.lower(hit_button_keyhint), to no avail. What am I doing wrong?
fg=hit_button['fg'])
hit_button_keyhint.place(relx=0.5, rely=0.85, anchor='center')
hit_button.bind("<Leave>", hit_button.lower(hit_button_keyhint))
You need to pass a function to the binding, Here you execute a function. (hit_button.lower(hit_button_keyhint))
To do so, you should use a lambda.
You can get some clarifications here:
Tkinter binding a function with arguments to a widget
But this should work:
hit_button.bind("<Leave>",lambda event, k=hit_button_keyhint:hit_button.lower(k)
I have a task that are hiding a dialog but I need to click the button belong to this dialog to
implement some function before go to the next dialog.
But when I hide this dialog, I can't click the button. Is there any way to implement this button without On_Bn_Clicked() event? I mean that when the dialog is called, the button is also activated.
Thank for the helps.
When you click the button a few Windows messages are sent. The important ones are WM_LBUTTONDOWN, WM_LBUTTONUP which tells the button you clicked the left mouse button down and up. Then some time later a WM_COMMAND message is sent to the parent window to handle the button click. At that point your ON_COMMAND() MFC handler is called. MFC abstracts this all away from you for the most part.
You could go and simulate this using the Win32 SendMessage API but if the message pump is blocking your button may not be clicked when you think it will. If you want a quick answer to your question then this is an approach to "get it done". It would look something like this:
SendMessage(button.GetSafeHwnd(), WM_LBUTTONDOWN, MK_LBUTTON, 0);
SendMessage(button.GetSafeHwnd(), WM_LBUTTONUP, MK_LBUTTON, 0);
I think a more sensible approach is to take the code that is in this On_Bn_Clicked() event handler and simply move it to a reusable function. This way you can call the code in On_Bn_Clicked() from anywhere in your program.
Just call On_Bn_Clicked() directly from your code. There is no harm in doing so. (I suppose you don't want to actually click the hidden button with the mouse...)
I am totaly new to this site, but I already like it :-)
I found it by searching for a question about the UIPageViewController.
I have a normal UIPageViewController App, in which I open a ModalViewController for setting up some settings...
Now the Problem: :-)
If I click on the done Button on the right side of the ModalView, to dismiss it, the PageViewController turnes the page, because he thinks that he is meant by that click ;-)
Can I disable the PageViewController GestureRecognizer as long as I have a ModalView opened?
Is there a method to disable and later his recognizer?
thank you for your help in advance...
cu Matze
It seems odd that your UIPageViewController would steal touches from a modal view presented over it. Unless, perhaps, you are embedding the modal view within the content of the UIPageViewController?
To answer your question -- you can easily disable the page view controller's gesture recognizers by enumerating its gestureRecognizers property (an NSArray):
for (UIGestureRecognizer *gr in [self.pageViewController gestureRecognizers]) {
[gr setEnabled:NO];
}
Re-enable them later with setEnabled:YES.
UPDATE:
In iOS 6 UIPageViewControllerTransitionStyleScroll has been added. UIPageViewControllers that use this transition style return no gesture recognisers in the array returned by gestureRecognizers. Presumably page view controllers with this transition style use an underlying, private UIScrollView instance (it behaves just like a UIScrollView with paging enabled), although I haven't checked this.
I have 12 pop up pages on my site with a Save and Cancel button. My requirement is once the Save button is clicked on the pop page i want the server side code to execute and once its done I want the pop up to close.
Is that possible? If yes, kindly let me know how do I achieve that.
You can put a small Javascript on each popup:
<script type="text/javascript">
window.close();
</script>
Once the page has loaded (and all the code is run) this Javascript should close the window. Please note, different browsers will behave differently! Some might close it, some might alert warning, others may block it completely.
As far as I know this is the only way that could close a browser window. Either way, any number of popup windows over 0 is arguably an unfriendly user design. 10+ and you should be seriously reconsidering your user friendliness!
What you can do:
Create update panel and make your Save button as trigger to it, once button is clicked it will execute code behind without closing your popup.
Use your ScriptManager to register statrup method (JavaScript). This method will close your popup
ScriptManager.RegisterStartupScript(this,this.getType(),Guid.NewGuid().ToString(),"/your code to close popup/",true /this true will add script tags to your script so you don't have to write /);
Cheers
Sorry but this SO script wont highlight code, I don't know what is the problem.
At the end of your code the below lines of code will help to close the window.
this.Page.Response.Clear();
this.Page.Response.Write(string.Format(CultureInfo.InvariantCulture,
"window.frameElement.commonModalDialogClose(1, '{0}');", lblText.Text));
this.Page.Response.End();
I would like to know the correct way to close an AIR application programmatically.
In my Spark WindowedApplication I have:
this.addEventListener( Event.CLOSING, shutdownApp );
and of course an implementation of the shutdownApp method (which basically tidies up temporary files).
This works fine for the top-right close button of the window. However I also have functionality which needs to shutdown the application. Within the code I have called:
NativeApplication.nativeApplication.exit();
However this doesn't trigger the Event.CLOSING method, and so my temporary files are not cleared up. Should I not be calling nativeApplication.exit ? If so, what should I call instead? I'd rather not have to call my shutdownApp method before the NativeApplication.exit() as this doesn't feel quite so elegant.
Can anyone shed any light on the correct way of doing this?
Thanks,
Phil
I know this question has been answered and accepted, but thought I'd share, I use.
stage.nativeWindow.close();
The documentation looks a bit ambiguous on this and I would have the same interpretation that you did. Did you try the close or exit methods on the WindowedApplication?
Something like this, with FlexGlobals and topLevelApplication:
(FlexGlobals.topLevelApplication as WindowedApplication).close();
or
(FlexGlobals.topLevelApplication as WindowedApplication).exit();
Just give an answer here because I searched for a related question and was not able to find sth.
I wanted to do something similar and close an AIR application when the native close button of the document window (spark.components.Window) is pressed thought that the spark WindowedApplication container (the applications main window) is still active to hold and manage the native menu (at application startup it is also used to display a splash screen. It has to stay open since if it is closed the native menu won't show up or be accessible anymore so its visible property is just set to false).
My main problem was the window closing event. Registering it with ActionScript like
this.addEventListener(Event.Closing, windowClosed);
does not work: No closing event was dispatched.
The only way was to register an event handler directly in the s:Window element at start of the MXML file. I just throw in the closing attribute:
closing="window1_closingHandler(event)"
The event was dispatched then and in window1_closingHandler-function I called
NativeApplication.nativeApplication.exit();
That works for me and shuts down the whole application.