Would it make sense for inline and text frames to implement GetMinWidth and
GetPrefWidth in addition to the inline methods? Presumably they would implement
these in terms of the inline methods...
The reason I'm running into this is twofold. First of all, XUL boxes with text
in them (eg data:text/html,<div style="display:-moz-box">aaa</div> ) assert,
since the text doesn't implement GetPrefWidth/GetMinWidth. Second, I'm
considering nixing nsLegendFrame altogether if I can; it really doesn't have
that much reason to exist. But then in the fieldset frame I'll want to call
GetPrefWidth on the legend (since the fieldset's minimum width depends on the
legend's preferred width as things stand). And if the legend frame is
constructed by display (so it can be an inline), then I run into inlines not
supporting GetPrefWidth.
Of course another option for the latter problem is to just set "display: block
!important" on legends in forms.css...
And a third option (possibly to be combined with the second) is that we allow
legends to wrap.
-Boris
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