<text> defaults to resize=false. This leads to a number of
anomalies, a couple of which are listed at http://wiki.openlaszlo.org/
Gotchas.
Historically, this was because Flash 5 didn't support automatically
resizable text, and it would have been excruciatingly slow to compute
the width in JavaScript. (We know, because we did something similar
in order to implement editable multiline text.) However, Flash 6 and
higher support resizable text in the display model.
I propose that we change the text default to resize=true for
OpenLaszlo 4.0, both to remove this gotcha/annoyance, and for
compatibility with HTML.
This is a potentially incompatible change: (1) Code that assumes that
text without an explicit width will stay the same size even when its
content changes, will break. (2) Code that assumes that <text>
fields without any initial content will default to, and remain at,
100 pixels wide, will also break.
The heavyweight migration strategy would be to handle this in two
stages:
- In OpenLaszlo 3.2, the default stays at resize=false, but resize
becomes a mandatory attribute. This forces developers to specify
whether or not they intend resizing; it also insures that any code
that compiles without warnings in both OpenLaszlo 3.2 and OpenLaszlo
4.0, will have the same behavior in both versions.
- In OpenLaszlo 4.0, the default changes to resize=true, and resize
again becomes optional.
Or, if the (1) and (2) are rare, we can use a simpler migration path,
and simply change it in 4.0. (In fact, if they're rare, we might as
well change it in 3.2.)
Thoughts?
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