LibreOffice Module sc (master)  1
listenercalls.cxx
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19 
20 #include <com/sun/star/util/XModifyListener.hpp>
21 #include <osl/diagnose.h>
22 
23 #include <listenercalls.hxx>
24 
25 using namespace com::sun::star;
26 
28 
30 {
31  OSL_ENSURE(aEntries.empty(), "unhandled listener calls remaining");
32 }
33 
34 void ScUnoListenerCalls::Add(const uno::Reference<util::XModifyListener>& rListener,
35  const lang::EventObject& rEvent)
36 {
37  if (rListener.is())
38  aEntries.emplace_back(rListener, rEvent);
39 }
40 
42 {
43  // Execute all stored calls and remove them from the list.
44  // During each modified() call, Add may be called again.
45  // These new calls are executed here, too.
46 
47  std::vector<ScUnoListenerEntry>::iterator aItr(aEntries.begin());
48  while (aItr != aEntries.end())
49  {
50  ScUnoListenerEntry aEntry = *aItr;
51  try
52  {
53  aEntry.xListener->modified(aEntry.aEvent);
54  }
55  catch (const uno::RuntimeException&)
56  {
57  // the listener is an external object and may throw a RuntimeException
58  // for reasons we don't know
59  }
60 
61  // New calls that are added during the modified() call are appended to the end
62  // of aEntries, so the loop will catch them, too (as long as erase happens
63  // after modified).
64 
65  aItr = aEntries.erase(aItr);
66  }
67 }
68 
69 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
void Add(const css::uno::Reference< css::util::XModifyListener > &rListener, const css::lang::EventObject &rEvent)
css::lang::EventObject aEvent
css::uno::Reference< css::util::XModifyListener > xListener
ScXMLEditAttributeMap::Entry const aEntries[]