[Webkit-unassigned] [Bug 20277] implement window.scrollByPages and window.scrollByLines

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20277





------- Comment #26 from arenevier at fdn.fr  2008-10-05 11:41 PDT -------
>> I had tried to use it, but did not succeed. It seems that it can only be used
>> when scrolling within a region with scrollbars, but not to scroll whole
>> document.

> Maybe I am not understanding something here.

When trying to implement 
DOMWindow::scrollByPages as follow (it's for testing purpose, I known for a
real implementation, I should add a parameter to scroll

{   
    if (!m_frame)
        return;

    FrameView* view = m_frame->view();
    if (!view)
        return;
    int i = 0;
    for (i = 0; i < lines; i++) {
        view->scroll(ScrollUp, ScrollByLine);
    }
}

it does nothing. That's because m_verticalScrollbar is null in
ScrollView::scroll. Do I call scroll in a wrong way ? Is that a bug in gtk
backend ? Is that intended behaviour ?


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