Remember size of resizeable dialog window

Support
#1

Hello,

I have a screen that is openend as a non-modal, resizeable dialog window (a PDF preview dialog window and I want to save the width and height of the window and set it the next time the user opens the dialog.

AFAIK there is no resize event I can add a listener to, so I’m thinking of writting custom JavaScript that will invoke method in the controller?

#2

Hello,

you can subscribe to AfterCloseEvent and save the width and height of DialogWindow in settings. In onBeforeShow load and set sizes to the DialogWindow.

For instance:

@Subscribe
public void onBeforeShow(BeforeShowEvent event) {
    if (getWindow() instanceof DialogWindow) {
        DialogWindow windowDialog = (DialogWindow) getWindow();
        Element element = getSettings().get("dialogSizes");

        String width = element.attributeValue("width");
        if (!Strings.isNullOrEmpty(width)) {
            windowDialog.setDialogWidth(width);
        }
        String height = element.attributeValue("height");
        if (!Strings.isNullOrEmpty(height)) {
            windowDialog.setDialogHeight(height);
        }
    }
}

@Subscribe
public void onAfterClose(AfterCloseEvent event) {
    if (getWindow() instanceof DialogWindow) {
        DialogWindow windowDialog = (DialogWindow) getWindow();
        Element element = getSettings().get("dialogSizes");
        element.addAttribute("width", windowDialog.getDialogWidth() + "px");
        element.addAttribute("height", windowDialog.getDialogHeight() + "px");
        getSettings().commit();
    }
}
1 Like
#3

@Pinyazhin Thanks, that works. I also wasn’t aware that the concrete class for a dialog is DialogWindow. Nice. :slight_smile: