[oXygen-user] Opening dialog boxes from xslt - It works!

Hi,

I lately implemented custom saxon instructions that allow to create a 
message boxes or option dialogs from within an XSLT script.

Since it turned out to be pretty easy to implement and very useful within 
my framework, I just wanted to share this idea - and the joy over oxygen, 
that even this is possible.


One use-cases would be a transformation that potentially overwrites an 
existing file and asks the user before doing so (if the file already 
exists). The code looks like this:
 
        <xsl:if test="java:fileExists($myFile)">
                <xsl:variable name="userDecision" as="xs:integer">
                        <gui:option-dialog title="Warning" options=
"('Continue', 'Abort')" default="1">
                                <xsl:text/>The file '<xsl:value-of select=
"$myFile"/>' already exists and will be overwritten.<xsl:text/>
                        </gui:option-dialog>
                </xsl:variable>
                <xsl:if test="$userDecision = 1">
                        <xsl:message terminate="yes">Abort on user request
</xsl:message>
                </xsl:if>
        </xsl:if>

To implement such extension instructions you will have to implement your 
own java library and put it into oxygens lib folder.
To do so follow the saxon documentation at 
        http://www.saxonica.com/documentation/#!extensibility/instructions
and - much more important - look at the sample of Saxon-SQL, which is 
included in the open source edition of saxon: 
        http://sourceforge.net/projects/saxon/files/Saxon-HE/)
Make sure to use the same version as included into oxygen!


To open the actual dialog you can use something like

        JOptionPane.showOptionDialog(
                (Frame)PluginWorkspaceProvider.getPluginWorkspace
().getParentFrame(),
                textString,
                titleString,
                (optionList.size() == 2) ?  JOptionPane.YES_NO_OPTION : 
JOptionPane.YES_NO_CANCEL_OPTION,
                JOptionPane.PLAIN_MESSAGE,
                null,
                optionList.toArray(new String[optionList.size()]),
                defaultOption);


(If someone should be interested - I will also gladly share my java code.)

There is also an entry in the forum for this:
        http://www.oxygenxml.com/forum/topic11531.html


Regards,

Patrik
GDV Dienstleistungs-GmbH & Co. KG
Glockengießerwall 1
D-20095 Hamburg
www.gdv-dl.de

Sitz und Registergericht: Hamburg
HRA 93 894
USt.-IdNr : DE 205183123

Komplementärin: 
GDV Beteiligungsgesellschaft mbH
Sitz und Registergericht: Hamburg
HRB 71 153

Geschäftsführer:
Dr. Jens Bartenwerfer
Michael Bathke
Heiko Beermann
Volker Sonnenburg

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