528296 - Tab-selectable elements should be limited by on-screen visibility

Status: UNCONFIRMED

(Core :: DOM: UI Events & Focus Handling, enhancement)

Description

[Samuel Richter]

User-Agent:       Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20
Build Identifier: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20

Using 'tab' to select elements can be cumbersome, especially if you have loaded a large page with a lot of selectable elements.  Using 'tab' with 'pgdn' and 'pgup' can be especially confusing especially if the selected element is off-screen.  When looking at a portion of a document, if the selected element is not in the current view, pressing 'tab' will reset the view to contain that element and readjust the current scroll location.  

Reproducible: Always

Steps to Reproduce:
1.  Open a large document
2.  Scroll to the end
3.  Press 'tab'
Actual Results:  
The document scrolls back to the start, where the selected element is.

Expected Results:  
It should have reset the currently selected element to one that appears in the current view.  If the dimensions of the current page exceed the maximum dimensions of the view, the view should be adjusted to accomadate those elements of the page when they are selected in succession in the tab order.

I apologize if this report is irrelevant.  Several searches yielded nothing on this topic; I am assuming that this behavior is still en force.