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https://issues.apache.org/jira/browse/TRINIDAD-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12920886#action_12920886
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Tobias Eisenträger commented on TRINIDAD-673:
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This Bug still seems to exist. Not working correctly on Trinidad 1.2.13 Please
reopen or advice. Thanks!
> tr:panelPopup positions itself with regards to the document body, not the
> offset parent
> ---------------------------------------------------------------------------------------
>
> Key: TRINIDAD-673
> URL: https://issues.apache.org/jira/browse/TRINIDAD-673
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Components
> Affects Versions: 1.0.2-core
> Reporter: Andrew Robinson
> Assignee: Andrew Robinson
> Fix For: 1.0.3-core
>
> Attachments: popup.js
>
>
> I have been working for a large part of the day on my own renderer of the
> tr:panelPopup as the core one unfortunately doesn't work for my needs. The
> problem is that the PanelPopup.js assumes that the panel's offsetParent is
> the document.body/window. With CSS styling, this is very rarely the case. As
> a result a tr:panelPopup inside of a relative or absolute HTML element will
> not be rendered in the correct location on the screen.
> Furthermore, the panel is often not visible if the parent's overflow is
> hidden.
> Proposed solution:
> The best way to ensure that the popup is positioned correctly is to have all
> measurements made using absolute (page) co-ordinates. Also, it is imperative
> to have the popup inside a container that is not cropped or scrolling in any
> way to ensure the dialog stays visible.
> Steps:
> 1) When the popup is shown, move it to the parent FORM element (use the form
> to ensure that form elements inside the popup do not break)
> 2) if the popup is not in a form, then relocate the popup to the document.body
> 3) have event listeners on the popup and the trigger.
> 4) in the mouse out, check to see if the events X and Y co-ordinates fall in
> the page X and page Y co-ordinates of either the trigger or the popup. If the
> event is outside both sets of co-ordinates, hide the popup
> 5) when hiding the popup, move it back to it's original parent
> Technical notes:
> - to determine absolute co-ordinates relative to the page, one must loop
> through all the parent nodes, checking offsetTop and offsetLeft until the
> offsetParent is null
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