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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file AppContext.h
* @author Yann yann@ethdev.com
* @date 2014
* Provides access to the current QQmlApplicationEngine which is used to add QML file on the fly.
* In the future this class can be extended to add more variable related to the context of the application.
* For now AppContext provides reference to:
* - QQmlApplicationEngine
* - dev::WebThreeDirect (and dev::eth::Client)
* - KeyEventManager
*/
#pragma once
#include <QQmlApplicationEngine>
#include <libsolidity/CompilerStack.h>
#include <libwebthree/WebThree.h>
#include "KeyEventManager.h"
namespace dev
{
namespace mix
{
/**
* @brief Provides access to application scope variable.
*/
class AppContext: public QObject
{
Q_OBJECT
public:
AppContext(QQmlApplicationEngine* _engine);
~AppContext() {}
/// get the current QQmlApplicationEngine instance.
static AppContext* getInstance() { return Instance; }
/// renew QQMLApplicationEngine with a new instance.
static void setApplicationContext(QQmlApplicationEngine* _engine);
/// get the current QQMLApplicationEngine instance.
QQmlApplicationEngine* appEngine();
/// initialize KeyEventManager (used to handle key pressed event).
void initKeyEventManager(QObject* _obj);
/// get the current KeyEventManager instance.
KeyEventManager* getKeyEventManager();
/// get the current Compiler instance (used to parse and compile contract code).
dev::solidity::CompilerStack* compiler();
/// display an alert message.
void displayMessageDialog(QString _title, QString _message);
private:
static AppContext* Instance;
std::unique_ptr<QQmlApplicationEngine> m_applicationEngine;
std::unique_ptr<dev::WebThreeDirect> m_webThree;
std::unique_ptr<KeyEventManager> m_keyEventManager;
std::unique_ptr<solidity::CompilerStack> m_compiler;
public slots:
/// delete the current instance when application quit.
void quitApplication() { delete Instance; }
/// initialize components after the loading of the main QML view.
void resourceLoaded(QObject* _obj, QUrl _url) { Q_UNUSED(_url); initKeyEventManager(_obj); }
};
}
}