Introducing enchancing DOMViewer on Google summer of code

Hi Ivan,

    I am very sorry to take so long to respond
("real" work has been
insane).

"Ivan Andjelkovic" <andjelkovic.ivangmail.com> wrote on 04/14/2007 
12:26:04 AM:

> My application about enhancing BATIK's document viewer
has been 
> accepted on Google summer of code.

   This is great.

> The application is about enhancing document
manipulation through the
> BATIK's DOMViewer component. User should be able not
only to browse 
> but also edit the content of the document After
performing the 
> changes, the document referred by the Viewer needs to
be refreshed. 

   Sounds useful.

> So the following options need to be added: 
> 1. The user ? requested option which would update the
state of the 
> DOMViewer (the tree and the attribute list) from the
content of the 
document,

    This shouldn't be too hard, The current code does this
when you toggle 

the showing of empty text nodes. However it
"forgets" the state of the
tree viewer when that happens, which you would not want to
have happen.

    You might consider using Mutation events to update the
DOM viewer 
automatically (perhaps with a "don't track live
DOM" check box). For
most documents this should be fairly reasonable, especially
if you
were careful to only really look at the mutation events that
effected
what was being shown in the DOMViewer.

> 2. The options for editing elements of the document,
such as adding 
> new elements and attributes, and changing the values of
the ones 
> already in the list. 

    The UI should be the only really challenging part of
this, the
DOM is really simple from this point of view;
createElementNS,
setAttributeNS, removeAttributeNS, appendChild, insertChild,

removeChild.   You would probably want to provide popups for

common elements/attributes.

    If you wanted to try and muck directly with CSS things
would be
trickier since you would need to create a UI for stylesheets
and then
automatically tweak something like 'class' to effect a
single element.

> The goal of the project is to develop intuitive GUI
which will allow
> the manipulation. 

    It's great to have you helping to improve Batik.


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