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/*
* Copyright (c) 2012 Maciej Niedzielski
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
#include <cassert>
#include <boost/algorithm/string.hpp>
#include <boost/regex.hpp>
#include <boost/bind.hpp>
#include <boost/numeric/conversion/cast.hpp>
#include <Swiften/Base/foreach.h>
#include <Swift/Controllers/HighlightManager.h>
#include <Swift/Controllers/Highlighter.h>
#include <Swift/Controllers/Settings/SettingsProvider.h>
#include <Swift/Controllers/SettingConstants.h>
/* How does highlighting work?
*
* HighlightManager manages a list of if-then rules used to highlight messages.
* Rule is represented by HighlightRule. Action ("then" part) is HighlightAction.
*
*
* HighlightManager is also used as a factory for Highlighter objects.
* Each ChatControllerBase has its own Highlighter.
* Highligher may be customized by using setNick(), etc.
*
* ChatControllerBase passes incoming messages to Highlighter and gets HighlightAction in return
* (first matching rule is returned).
* If needed, HighlightAction is then passed back to Highlighter for further handling.
* This results in HighlightManager emiting onHighlight event,
* which is handled by SoundController to play sound notification
*/
namespace Swift {
HighlightManager::HighlightManager(SettingsProvider* settings)
: settings_(settings)
, storingSettings_(false)
{
loadSettings();
settings_->onSettingChanged.connect(boost::bind(&HighlightManager::handleSettingChanged, this, _1));
}
void HighlightManager::handleSettingChanged(const std::string& settingPath)
{
if (!storingSettings_ && SettingConstants::HIGHLIGHT_RULES.getKey() == settingPath) {
loadSettings();
}
}
void HighlightManager::loadSettings()
{
std::string highlightRules = settings_->getSetting(SettingConstants::HIGHLIGHT_RULES);
if (highlightRules == "@") {
rules_ = getDefaultRules();
} else {
rules_ = rulesFromString(highlightRules);
}
}
std::string HighlightManager::rulesToString() const
{
std::string s;
foreach (HighlightRule r, rules_) {
s += r.toString() + '\f';
}
if (s.size()) {
s.erase(s.end() - 1);
}
return s;
}
std::vector<HighlightRule> HighlightManager::rulesFromString(const std::string& rulesString)
{
std::vector<HighlightRule> rules;
std::string s(rulesString);
typedef boost::split_iterator<std::string::iterator> split_iterator;
for (split_iterator it = boost::make_split_iterator(s, boost::first_finder("\f")); it != split_iterator(); ++it) {
HighlightRule r = HighlightRule::fromString(boost::copy_range<std::string>(*it));
if (!r.isEmpty()) {
rules.push_back(r);
}
}
return rules;
}
std::vector<HighlightRule> HighlightManager::getDefaultRules()
{
std::vector<HighlightRule> rules;
HighlightRule r;
r.setMatchChat(true);
r.getAction().setPlaySound(true);
rules.push_back(r);
return rules;
}
void HighlightManager::storeSettings()
{
storingSettings_ = true; // don't reload settings while saving
settings_->storeSetting(SettingConstants::HIGHLIGHT_RULES, rulesToString());
storingSettings_ = false;
}
HighlightRule HighlightManager::getRule(int index) const
{
assert(index >= 0 && static_cast<size_t>(index) < rules_.size());
return rules_[static_cast<size_t>(index)];
}
void HighlightManager::setRule(int index, const HighlightRule& rule)
{
assert(index >= 0 && static_cast<size_t>(index) < rules_.size());
rules_[static_cast<size_t>(index)] = rule;
storeSettings();
}
void HighlightManager::insertRule(int index, const HighlightRule& rule)
{
assert(index >= 0 && boost::numeric_cast<std::vector<std::string>::size_type>(index) <= rules_.size());
rules_.insert(rules_.begin() + index, rule);
storeSettings();
}
void HighlightManager::removeRule(int index)
{
assert(index >= 0 && boost::numeric_cast<std::vector<std::string>::size_type>(index) < rules_.size());
rules_.erase(rules_.begin() + index);
storeSettings();
}
Highlighter* HighlightManager::createHighlighter()
{
return new Highlighter(this);
}
}
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Swift