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137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
/*
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* \brief A Qt Widget that can load a plugin application and show its Nitpicker view
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* \author Christian Prochaska
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* \date 2010-08-26
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*/
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/*
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* Copyright (C) 2010-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef QPLUGINWIDGET_H
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#define QPLUGINWIDGET_H
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/* Genode includes */
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#include <libc/component.h>
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#include <loader_session/connection.h>
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/* Qt includes */
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#include <QtGui>
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#include <QtNetwork>
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#include <qnitpickerviewwidget/qnitpickerviewwidget.h>
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enum Plugin_loading_state
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{
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LOADING,
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LOADED,
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NETWORK_ERROR,
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INFLATE_ERROR,
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CAP_QUOTA_EXCEEDED_ERROR,
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RAM_QUOTA_EXCEEDED_ERROR,
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ROM_CONNECTION_FAILED_EXCEPTION,
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TIMEOUT_EXCEPTION
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};
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class QPluginWidget;
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/* separate class, because meta object features are not supported in nested classes */
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class PluginStarter : public QThread
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{
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Q_OBJECT
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private:
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Libc::Env *_env;
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QUrl _plugin_url;
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QByteArray _args;
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int _max_width;
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int _max_height;
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Nitpicker::View_capability _parent_view;
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Loader::Connection *_pc;
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enum Plugin_loading_state _plugin_loading_state;
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QString _plugin_loading_error_string;
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QNetworkAccessManager *_qnam;
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QNetworkReply *_reply;
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void _start_plugin(QString &file_name, QByteArray const &file_buf);
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protected slots:
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void networkReplyFinished();
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public:
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PluginStarter(Libc::Env *env,
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QUrl plugin_url, QString &args,
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int max_width, int max_height,
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Nitpicker::View_capability parent_view);
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void run();
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enum Plugin_loading_state plugin_loading_state() { return _plugin_loading_state; }
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QString &plugin_loading_error_string() { return _plugin_loading_error_string; }
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/**
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* Requst size of the nitpicker view of the loaded subsystem
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*/
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Loader::Area view_size();
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/**
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* Set geometry of the nitpicker view of the loaded subsystem
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*/
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void view_geometry(Loader::Rect rect, Loader::Point offset);
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signals:
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void finished();
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};
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class QPluginWidget : public QEmbeddedViewWidget
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{
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Q_OBJECT
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private:
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static Libc::Env *_env;
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static QPluginWidget *_last;
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enum Plugin_loading_state _plugin_loading_state;
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QString _plugin_loading_error_string;
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PluginStarter *_plugin_starter;
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bool _plugin_starter_started;
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QUrl _plugin_url;
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QString _plugin_args;
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int _max_width;
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int _max_height;
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public:
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enum { PRESERVED_CAPS = 150 };
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enum { PRESERVED_RAM_QUOTA = 5*1024*1024 };
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void cleanup();
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protected:
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virtual void paintEvent(QPaintEvent *);
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virtual void showEvent(QShowEvent *);
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virtual void hideEvent(QHideEvent *);
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protected slots:
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void pluginStartFinished();
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public:
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QPluginWidget(QWidget *parent, QUrl plugin_url, QString &args,
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int max_width = -1, int max_height = -1);
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~QPluginWidget();
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static void env(Libc::Env &env) { _env = &env; }
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};
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#endif // QPLUGINWIDGET_H
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