80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
/*
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This file is part of the PhantomJS project from Ofi Labs.
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Copyright (C) 2011 Ivan De Marino <ivan.de.marino@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef REPL_H
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#define REPL_H
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#include <QtWebKitWidgets/QWebFrame>
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#include "phantom.h"
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// Linenoise is a C Library: we need to externalise it's symbols for linkage
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extern "C" {
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#include "linenoise.h"
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}
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/**
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* REPL. Read–Eval–Print Loop.
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*
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* This class realises the REPL functionality within PhantomJS.
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* It's a Singleton: invoke "REPL::getInstance(QWebFrame *, Phantom *) to
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* create the first-and-only instance, or no parameter to get the singleton
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* if previously created.
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*
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* It's based the Linenoise library (https://github.com/tadmarshall/linenoise).
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* More info about REPL: http://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop
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*/
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class REPL: public QObject
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{
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Q_OBJECT
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public:
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static bool instanceExists();
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static REPL* getInstance(QWebFrame* webframe = NULL, Phantom* parent = NULL);
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Q_INVOKABLE QString _getClassName(QObject* obj) const;
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Q_INVOKABLE QStringList _enumerateCompletions(QObject* obj) const;
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private:
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REPL(QWebFrame* webframe, Phantom* parent);
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static void offerCompletion(const char* buf, linenoiseCompletions* lc);
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private slots:
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void startLoop();
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void stopLoop(const int code);
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private:
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QWebFrame* m_webframe;
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Phantom* m_parentPhantom;
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bool m_looping;
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QByteArray m_historyFilepath;
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};
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#endif // REPL_H
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