Swift/QtUI/ChatSnippet.h


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/*
 * Copyright (c) 2010-2013 Kevin Smith
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#pragma once

#include <boost/shared_ptr.hpp>

#include <QString>
#include <QDateTime>
#include "QtChatTheme.h"

namespace Swift {
	class ChatSnippet {
		public:
			enum Direction {
				RTL,
				LTR
			};

			ChatSnippet(bool appendToPrevious);
			virtual ~ChatSnippet();

			virtual const QString& getContent() const = 0;
			virtual QString getContinuationElementID() const { return ""; }

			boost::shared_ptr<ChatSnippet> getContinuationFallbackSnippet() const {return continuationFallback_;}

			bool getAppendToPrevious() const {
				return appendToPrevious_;
			}

			static QString escape(const QString& original) {
				QString result(original);
				result.replace("%message%", "&#37;message&#37;");
				result.replace("%sender%", "&#37;sender&#37;");
				result.replace("%wrapped_sender%", "&#37;wrapped_sender&#37;");
				result.replace("%time%", "%&#37;time&#37;");
				result.replace("%shortTime%", "%&#37;shortTime&#37;");
				result.replace("%userIconPath%", "&#37;userIconPath&#37;");
				result.replace("\t", "    ");
				result.replace("  ", "&nbsp;&nbsp;");
				return result;
			}

			static QString timeToEscapedString(const QDateTime& time);

			static Direction getDirection(const std::string& message);
			static Direction getDirection(const QString& message);

		protected:
			static QString directionToCSS(Direction direction);

			QString wrapResizable(const QString& text);
			void setContinuationFallbackSnippet(boost::shared_ptr<ChatSnippet> continuationFallback) {
				continuationFallback_ = continuationFallback;
			}
		private:
			bool appendToPrevious_;
			boost::shared_ptr<ChatSnippet> continuationFallback_;
	};
}