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Scripting Example

This example demonstrates the combination of Javascript and a trivial plugin, and the use of a plugin in combination with a form.

If the browser supports scripting plugins, and everything is set up correctly, the plugin below should react to mouse clicks and drags by changing its text. The About... button should pop up an About Qt dialog. The second plugin instance, below the horizontal line, should display the word QtBrowserPlugin, and pressing the Go! button should navigate the browser to a search for this word at google.com.

Implementation:

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 ** ensure the GNU Lesser General Public License version 2.1 requirements
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 #include <QtGui>
 #include <qtbrowserplugin.h>

 class Trivial : public QWidget
 {
     Q_OBJECT
     Q_PROPERTY(QString text READ text WRITE setText)

     Q_CLASSINFO("ClassID", "{5a22176d-118f-4185-9653-9f98958a6df8}")
     Q_CLASSINFO("InterfaceID", "{2df735ba-da4f-4fb7-8f35-b8dfbf8cfd9a}")
     Q_CLASSINFO("EventsID", "{449de213-f8bd-4d2e-a2cf-eab407c03245}")

     Q_CLASSINFO("MIME", "trivial/very:xxx:Trivial and useless")
     Q_CLASSINFO("ToSuperClass", "Trivial")
     Q_CLASSINFO("DefaultProperty", "text")

 public:
     Trivial(QWidget *parent = 0)
         : QWidget(parent)
     {
         m_text = QString::fromLatin1("Empty");
     }

     void mousePressEvent(QMouseEvent *)
     {
         mouseDown();
     }
     void mouseMoveEvent(QMouseEvent *e)
     {
         mouseMove(e->x(), e->y());
     }
     void mouseReleaseEvent(QMouseEvent*)
     {
         mouseUp();
     }
     QString text() const
     {
         return m_text;
     }

 public slots:
     void about()
     {
         QMessageBox::aboutQt(this);
     }
     void setText(const QString &text)
     {
         m_text = text;
         update();
     }

 signals:
     void mouseDown();
     void mouseMove(int x, int y);
     void mouseUp();

 protected:
     void paintEvent(QPaintEvent*)
     {
         QPainter p(this);
         QRect r(rect());
         r.adjust(0, 0, -1, -1);

         p.drawRect(r);
         p.drawText(r, Qt::AlignCenter, m_text);
     }

 private:
     QString m_text;
 };

 #include "trivial.moc"

 QTNPFACTORY_BEGIN("Trivial Qt-based Plugin", "A Qt-based LiveConnected plug-in that does nothing")
     QTNPCLASS(Trivial)
 QTNPFACTORY_END()

 #ifdef QAXSERVER
 #include <ActiveQt/QAxFactory>
 QAXFACTORY_BEGIN("{aa3216bf-7e20-482c-84c6-06167bacb616}", "{08538ca5-eb7a-4f24-a3c4-a120c6e04dc4}")
     QAXCLASS(Trivial)
 QAXFACTORY_END()
 #endif