Added generic webwin class

src/webwin.cpp

+/*  ____  _          _ _          __  __
+ * / ___|| | ___   _| (_)_   _____\ \/ /
+ * \___ \| |/ / | | | | \ \ / / _ \\  / 
+ *  ___) |   <| |_| | | |\ V /  __//  \ Remote Telescopes
+ * |____/|_|\_\\__, |_|_| \_/ \___/_/\_\ For the masses
+ *             |___/               
+ *
+ * Copyright (C) 2013 Franco (nextime) Lanza <nextime@nexlab.it>
+ * Copyright (C) 2013 Ivan Bellia <skylive@skylive.it>
+ *
+ * All rights reserved.
+ *
+ * This file is part of SkyliveX.
+ *
+ * SkyliveX 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.
+ *
+ * Foobar 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ********************************************************************
+ *
+ * File: splashpage.cpp 
+ * 
+ * Purpose:
+ *
+ */
+#include "webwin.h"
+#include <QWebView>
+#include <QWebFrame>
+#include <QFile>
+#include <QUrl>
+#include <QDir>
+#include <QString>
+#include <QPalette>
+#include <QDragMoveEvent>
+#include <iostream>
+#include "ipcmsg.h"
+#include "jsbridge.h"
+
+#define SENDER "webwin"
+
+WebWin::WebWin(QString &htmlfile)
+      : QWebView(0)
+{
+   baseUrl = QUrl::fromLocalFile(QDir::current().absoluteFilePath("gui/dummy.html"));
+   
+   QPalette pal = palette();
+   pal.setBrush(QPalette::Base, Qt::transparent);
+
+   setWindowFlags(Qt::FramelessWindowHint);
+   page()->setPalette(pal);
+   setAttribute(Qt::WA_TranslucentBackground, true);
+   setAttribute(Qt::WA_OpaquePaintEvent, false);
+   setHtmlFile(htmlfile);
+   resize(250,200);
+
+   jsbridge = new JSBridge();
+   jsbridge->wwin = qobject_cast<WebWin *>(this);
+   page()->mainFrame()->addToJavaScriptWindowObject("SkyliveX", jsbridge);
+
+
+   connect(page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()), this, SLOT(refreshJsObject()));
+
+
+}
+
+WebWin::~WebWin()
+{
+
+}
+
+// XXX This can be used in future to permit
+//     to drag a window borderless on the desktop.
+/*
+void WebWin::dragMoveEvent(QDragMoveEvent *ev)
+{
+ std::cout << "Drag Move Event " << ev->pos().x() << std::endl;
+}
+*/
+
+void WebWin::refreshJsObject()
+{
+   //page()->mainFrame()->addToJavaScriptWindowObject("SkyliveX", &jsbridge);
+   jsbridge = new JSBridge();
+   jsbridge->wwin = qobject_cast<WebWin *>(this);
+   page()->mainFrame()->addToJavaScriptWindowObject("SkyliveX", jsbridge);
+
+}
+
+void WebWin::setHtmlFile(QString &fname)
+{
+
+   QFile filename(fname);
+   filename.open(QIODevice::ReadOnly);
+   htmlFileCont = QString::fromUtf8(filename.readAll().constData());
+   setHtml(htmlFileCont, baseUrl);
+   //page()->mainFrame()->addToJavaScriptWindowObject("SkyliveX", &jsbridge);
+   //jsbridge.mwin=qobject_cast<WebWin *>(this);
+}
+
+void WebWin::setHtmlFile(QString &fname, bool borders, bool transparentbg)
+{
+   toggleBorders(borders);
+   toggleTransparentBackground(transparentbg);
+   setHtmlFile(fname);
+
+}
+
+void WebWin::setHtmlCont(QString cont, QUrl baseUrl, bool borders, bool transparentbg)
+{
+   toggleBorders(borders);
+   toggleTransparentBackground(transparentbg);
+   setHtml(cont, baseUrl);
+}
+
+
+void WebWin::msgFromCore(SKMessage &msg)
+{
+   std::cout << "WebWindow msg reveived: " << msg.handle.toStdString() << std::endl;
+   if(_handlers.contains(msg.handle) && msg.sender != SENDER)
+   {
+      SKHandlerFunction mf =_handlers[msg.handle];
+      (this->*mf)(msg);
+   }
+
+}
+
+void WebWin::toggleBorders(bool borders)
+{
+
+   Qt::WindowFlags flags = windowFlags();
+   if(borders)
+   {
+     if(flags & Qt::FramelessWindowHint)
+     {
+        flags &= ~Qt::FramelessWindowHint;
+        setWindowFlags(flags);
+        show();
+     }
+   }
+   else
+   {
+     if(!(flags & Qt::FramelessWindowHint))
+     {
+        flags &= Qt::FramelessWindowHint;
+        setWindowFlags(flags);
+        show();
+     }
+   }
+}
+
+void WebWin::toggleTransparentBackground(bool transparentbg)
+{
+   QPalette pal = palette();
+   if(transparentbg)
+   {
+      pal.setBrush(QPalette::Base, Qt::transparent);
+      setAttribute(Qt::WA_TranslucentBackground, true);
+      setAttribute(Qt::WA_OpaquePaintEvent, false);
+   }
+   else
+   {
+      pal.setBrush(QPalette::Base, Qt::white);
+      setAttribute(Qt::WA_TranslucentBackground, false);
+      setAttribute(Qt::WA_OpaquePaintEvent, true);
+   }
+   page()->setPalette(pal);
+
+}
+
+void WebWin::sendMessage(SKMessage &msg)
+{
+   msg.sender=SENDER;
+   emit putMessage(msg);
+}
+
+void WebWin::registerHandler(QString type, SKHandlerFunction handler)
+{
+  _handlers[type] = handler;
+
+}
+

src/webwin.h

+/*  ____  _          _ _          __  __
+ * / ___|| | ___   _| (_)_   _____\ \/ /
+ * \___ \| |/ / | | | | \ \ / / _ \\  / 
+ *  ___) |   <| |_| | | |\ V /  __//  \ Remote Telescopes
+ * |____/|_|\_\\__, |_|_| \_/ \___/_/\_\ For the masses
+ *             |___/               
+ *
+ * Copyright (C) 2013 Franco (nextime) Lanza <nextime@nexlab.it>
+ * Copyright (C) 2013 Ivan Bellia <skylive@skylive.it>
+ *
+ * All rights reserved.
+ *
+ * This file is part of SkyliveX.
+ *
+ * SkyliveX 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.
+ *
+ * Foobar 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ********************************************************************
+ *
+ * File: skylivex.h
+ * 
+ * Purpose:
+ *
+ */
+#ifndef WEBWIN_H
+#define WEBWIN_H
+
+#include <QWebView>
+#include <QUrl>
+#include <QFile>
+#include <QHash>
+#include <QString>
+#include <QObject>
+#include <ipcmsg.h>
+#include "jsbridge.h"
+
+class WebWin; // forward declaration for typedef
+class JSBridge; // forward declaration
+// This is for member pointers to map messages
+typedef void (WebWin::*SKHandlerFunction)(SKMessage&);
+//typedef int (WebWin::*SKHandlerFunction)(SKMessage&);
+
+
+/*
+ * class WebWin
+ * This is just a little webkit transparent window 
+ * to show the splash screen
+ */
+class WebWin : public QWebView
+{
+
+   Q_OBJECT
+
+   QUrl baseUrl;
+   QString htmlfile;
+   QString htmlFileCont;
+
+   private:
+      QHash<QString, SKHandlerFunction> _handlers;
+
+   public:
+      WebWin(QString &htmlfile);
+      ~WebWin();
+      void setHtmlFile(QString &fname);
+      void setHtmlFile(QString &fname, bool borders, bool transparentbg);
+      void setHtmlCont(QString cont, QUrl baseUrl, bool borders, bool transparentbg);
+      void sendMessage(SKMessage &msg);
+      void registerHandler(QString type, SKHandlerFunction handler);
+      void toggleBorders(bool borders);
+      void toggleTransparentBackground(bool transparentbg);
+      JSBridge* jsbridge;
+
+   private slots:
+     void refreshJsObject();
+
+   public slots:
+     void msgFromCore(SKMessage &msg);
+
+   signals:
+     void putMessage(SKMessage &msg);
+
+   //  XXX Future usage
+   //protected:
+   //  void dragMoveEvent(QDragMoveEvent *ev);
+};
+
+
+#endif