Re: [Xsltforms-support] injecting XML element(s) at cursor position in text area?

[Alain C. <ala...@ag...>]

Please have a look at 
https://stackoverflow.com/questions/36005795/wrap-text-in-element-using-xforms

Mixing such XSLTForms extensions for getting and setting the cursor 
position and the possibly selection content should help you. You should 
keep in mind that XForms engines can just edit leaves content which 
means that the textarea control can just edit a serialization of a 
subtree. Supporting binding of a subtree for a textarea control might be 
another extension to avoid serializing into an intermediate node...

Because those extensions have not been specified by the XForms Work 
Group, your suggestions are, of course, welcome to improve them 
according to your requirements.

Thank you for your feedback!

--Alain

Le 03/09/2016 à 05:04, C. M. Sperberg-McQueen a écrit :
> When displaying nodes in input widgets or text widgets, is there
> a way to insert an XML element at the user's current cursor
> position, if they press a button?
>
> What I have in mind is similar to the buttons labeled 'ul', 'ol',
> 'li', 'b' in some in-browser HTML editors, which insert the indicated
> tag into a text box at the user's current cursor position in that box.
>
> I am not at the moment trying to allow the user to edit mixed
> content (so I don't think TinyMCE is what I want); what I want
> is to display an element which needs to be split in two and allow
> the user to tell me where to split it.
>
> For example, I might have a program that guesses where sentence
> boundaries occur in a text, and want to build an XForm to allow
> a user to correct the sentence tagging.
>
> The automatic sentence tagger can make two kinds of mistakes:
>
> 1) False positive:  It can place a sentence boundary where it
> shouldn't.
>
> So in front of every sentence element except the first in a paragraph,
> I'll want a button saying "merge", meaning "merge this sentence
> element with the preceding sentence element", to correct this
> error.
>
> 2) False negative:  it can fail to place a sentence boundary where
> it should.
>
> So I'd like to be able to allow the user to click within a single
> sentence element to place the cursor, then click a button which
> means "split this sentence element here."  Ideally, I don't want
> them to be able to change the text, only to indicate a place and
> say "split here."
>
> As another example:  if my project is marking boundaries between
> the morphemes in a word, I want to handle transcription of the
> document in one step, and in a second step ask the users to
> segment each word into morphemes.   The same two operations are
> needed:  split this element here, and (to undo mistakes) join these
> two elements.
>
> I am willing to accept the insertion of an empty element meaning
> 'segment-boundary-here' as a substitute for splitting the element,
> because I can always use XSLT to detect the empty boundary elements
> and perform the splits.
>
> Is there any way to do this with XForms (and more specifically with
> XSLTForms)?  If I can't find a way to do this, I suppose I'll end up
> either (a) giving the user an input widget and saying "insert a *
> at each morpheme boundary", and rejecting input in which anything
> has changed other than insertion of *, or (b) displaying the word
> o n e   l e t t e r   a t   a   t i m e, with buttons between them saying
> "split here".  (But doing a whole sentence at a time with that interface
> would be very awkward.)
>
> Thanks for any help anyone here can provide.
>
>