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/**
* @file llviewinject.cpp
* @author Nat Goodspeed
* @date 2011-08-16
* @brief Implementation for llviewinject.
*
* $LicenseInfo:firstyear=2011&license=viewerlgpl$
* Copyright (c) 2011, Linden Research, Inc.
* $/LicenseInfo$
*/
// Precompiled header
#include "linden_common.h"
// associated header
#include "llviewinject.h"
// STL headers
// std headers
// external library headers
// other Linden headers
llview::TargetEvent::TargetEvent(LLView* view)
{
// Walk up the view tree from target LLView to the root (NULL). If
// passed NULL, iterate 0 times.
for (; view; view = view->getParent())
{
// At each level, operator() is going to ask: for a particular parent
// LLView*, which of its children should I select? So for this view's
// parent, select this view.
mChildMap[view->getParent()] = view;
}
}
bool llview::TargetEvent::operator()(const LLView* view, S32 /*x*/, S32 /*y*/) const
{
// We are being called to decide whether to direct an incoming mouse event
// to this child view. (Normal LLView processing is to check whether the
// incoming (x, y) is within the view.) Look up the parent to decide
// whether, for that parent, this is the previously-selected child.
ChildMap::const_iterator found(mChildMap.find(view->getParent()));
// If we're looking at a child whose parent isn't even in the map, never
// mind.
if (found == mChildMap.end())
{
return false;
}
// So, is this the predestined child for this parent?
return (view == found->second);
}
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