On Feb 19, 2007, at 11:30 PM, Maciej Stachowiak wrote:
On Feb 19, 2007, at 9:04 PM, Dan Wood wrote:
Running blot, it appears that editable divs in webkit treat option-
space as a regular space, not as a non-breaking space. I can't
believe this could have been neglected, so maybe it's not a bug?
Personally, I'd like to be able to insert non-breaking spaces,
since it would mirror other text fields.
Any thoughts? Should I file a bug?
I think the reason this is done is because we use a sequence of
alternating normal spaces and non-breaking spaces, plus some
special WebKit-specific CSS properties, to achieve desired
whitespace behavior. We want multiple spaces to show up in the
middle of a line, but collapse away at the end, as in normal text
editors.
In WebKit-based clients, like Safari or Mail, we can get the
display to be just right, using a special CSS property. In other
clients, we want decent fallback. The closest you can get is
alternating space / nbsp, which preserves the multiple spaces but
will break in the middle if needed.
An alternate design for this that still allowed entering true non-
breaking spaces would be welcome - we could not figure out how last
time we thought about this.
Perhaps I'm not understanding this correctly, but the alternating of
non-breaking spaces with spaces should not prevent the deliberate
insertion of a non-breaking space. If a user is actually hodling down
the option key while typing space, the editor should insert a non-
breaking space. While this could create rendering problems, that
would just be the result of a user intentionally putting in too many
non-breaking space. The user would be aware of what caused the
problem. It's often necessary to deliberate use non-breaking spaces.
The Cocoa text system allows this. For example, if I'm trying to
prevent a runt at the end of paragraph I might want to type <option>-
<space> before the final word of a paragraph.
The alternating space non-break-space prevents the usual HTML/XML
treatment of whitespace by collapsing multiple consecutive spaces
into one space. Again, nothing should prevent WebKit from allowing
users to intentionally insert a non-break-space.
Best wishes,
Rob
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