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/**
* @file lluilistener.cpp
* @author Nat Goodspeed
* @date 2009-08-18
* @brief Implementation for lluilistener.
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
* Copyright (c) 2009, Linden Research, Inc.
* $/LicenseInfo$
*/
// Precompiled header
#include "llviewerprecompiledheaders.h"
// associated header
#include "lluilistener.h"
// STL headers
// std headers
// external library headers
// other Linden headers
#include "lluictrl.h"
#include "llerror.h"
LLUIListener::LLUIListener():
LLEventAPI("UI",
"LLUICtrl::CommitCallbackRegistry listener.\n"
"Capable of invoking any function (with parameter) you can specify in XUI.")
{
add("call",
"Invoke the operation named by [\"function\"], passing [\"parameter\"],\n"
"as if from a user gesture on a menu -- or a button click.",
&LLUIListener::call,
LLSD().with("function", LLSD()));
}
void LLUIListener::call(const LLSD& event) const
{
LLUICtrl::commit_callback_t* func =
LLUICtrl::CommitCallbackRegistry::getValue(event["function"]);
if (! func)
{
// This API is intended for use by a script. It's a fire-and-forget
// API: we provide no reply. Therefore, a typo in the script will
// provide no feedback whatsoever to that script. To rub the coder's
// nose in such an error, crump rather than quietly ignoring it.
LL_ERRS("LLUIListener") << "function '" << event["function"] << "' not found" << LL_ENDL;
}
else
{
// Interestingly, view_listener_t::addMenu() (addCommit(),
// addEnable()) constructs a commit_callback_t callable that accepts
// two parameters but discards the first. Only the second is passed to
// handleEvent(). Therefore we feel completely safe passing NULL for
// the first parameter.
(*func)(NULL, event["parameter"]);
}
}
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