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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/Avatars/CombinedAvatarProvider.h"
#include <algorithm>
#include <boost/bind.hpp>
#include <Swiften/Base/Log.h>
namespace Swift {
std::string CombinedAvatarProvider::getAvatarHash(const JID& jid) const {
return getCombinedAvatarAndCache(jid);
}
void CombinedAvatarProvider::addProvider(AvatarProvider* provider) {
provider->onAvatarChanged.connect(boost::bind(&CombinedAvatarProvider::handleAvatarChanged, this, _1));
providers.push_back(provider);
}
void CombinedAvatarProvider::removeProvider(AvatarProvider* provider) {
std::vector<AvatarProvider*>::iterator i = std::remove(providers.begin(), providers.end(), provider);
for(std::vector<AvatarProvider*>::iterator j = i; j < providers.end(); ++j) {
provider->onAvatarChanged.disconnect(boost::bind(&CombinedAvatarProvider::handleAvatarChanged, this, _1));
}
providers.erase(i, providers.end());
}
void CombinedAvatarProvider::handleAvatarChanged(const JID& jid) {
std::string oldHash;
std::map<JID, std::string>::const_iterator i = avatars.find(jid);
if (i != avatars.end()) {
oldHash = i->second;
}
std::string newHash = getCombinedAvatarAndCache(jid);
if (newHash != oldHash) {
SWIFT_LOG(debug) << "Avatar changed: " << jid << ": " << oldHash << " -> " << newHash << std::endl;
onAvatarChanged(jid);
}
}
std::string CombinedAvatarProvider::getCombinedAvatarAndCache(const JID& jid) const {
SWIFT_LOG(debug) << "JID: " << jid << std::endl;
std::string hash;
for (size_t i = 0; i < providers.size() && hash.empty(); ++i) {
hash = providers[i]->getAvatarHash(jid);
SWIFT_LOG(debug) << "Provider " << providers[i] << ": " << hash << std::endl;
}
avatars[jid] = hash;
return hash;
}
}
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Swift