I am trying to program a Global DocumentEventListener in Python.
Then on a certain event (e.g. File Open), I want to analyse/print the paragraph
structure of the document.
I am running LibreOffice on port 2002. I am using the internal Python from
LibreOffice, but I run the script externally, from a Terminal.
This is on Mac OS X 10.10, and LO 4.4.2.2.
The listener works and gives output until I start an Enumeration, for example
enumerating the paragraphs. After the first element LO hangs completely, and
the only way out is to kill it. I have tried also with enumerationg the
TextFields in the document and it also hangs.
So I am wondering if I do something illegal or unsupported, or that I have hit
a bug.
LO is started with:
/Applications/LibreOffice.app/Contents/MacOS/soffice
--accept='socket,host=localhost,port=2002;urp;StarOffice.Servicemanager'
--nologo --nodefault
Here is the relevant code. During the processing I disable the listener to
prevent some recursive calling, but in fact that doesn't make a difference.
import uno
import unohelper
from com.sun.star.document import XDocumentEventListener
import PYUNO.DemoBase as DemoBase
listener = None
globalBroadcaster = None
class MyEventListener(XDocumentEventListener, unohelper.Base):
# XDocumentEventListener
def documentEventOccured(self, event):
globalBroadcaster.removeDocumentEventListener(self)
print("Event name: {}".format(event.EventName))
if event.EventName == "OnLoadFinished":
doc = event.Source
print("Document: Title: {} Location: {}".format(doc.Title,
doc.Location))
showportions(doc)
globalBroadcaster.addDocumentEventListener(self)
# parent-interface XDocumentEventListener
def disposing(self, event):
pass
def showportions(doc):
if doc.supportsService("com.sun.star.text.TextDocument"):
parenum = doc.Text.createEnumeration()
while parenum.hasMoreElements():
para = parenum.nextElement()
print("get para: {}".format(para.String))
and in main (after setting up the connection):
global globalBroadcaster
context = XSCRIPTCONTEXT.getComponentContext()
globalBroadcaster = context.getValueByName(
'/singletons/com.sun.star.frame.theGlobalEventBroadcaster')
listener = MyEventListener()
globalBroadcaster.addDocumentEventListener(listener)
And here is the output when I open a Writer document:
Event name: OnPrepareViewClosing
Event name: OnPrepareUnload
Event name: OnViewClosed
Event name: OnUnload
Event name: OnUnfocus
Event name: OnFocus
Event name: OnLoadFinished
Document: Title: Letter.odt Location:
file:///Users/piet/TEST/LibreOffice/Letter.odt
get para: To:
The first paragraph gets printed, then it hangs.
--
Piet van Oostrum <p...@vanoostrum.org>
WWW: http://pietvanoostrum.com/
PGP key: [8DAE142BE17999C4]
_______________________________________________
LibreOffice mailing list
LibreOffice@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/libreoffice
