import FreeCADGui
from PySide2 import QtCore, QtWidgets

try:
    from PySide2.QtWebEngineWidgets import QWebEngineView
except ImportError:
    QtWidgets.QMessageBox.critical(None, "Error", "QtWebEngineWidgets is not available.")
    raise

class WebBrowserDockWidget(QtWidgets.QDockWidget):
    def __init__(self, parent=None):
        super(WebBrowserDockWidget, self).__init__('Web Browser', parent)
        self.setAllowedAreas(QtCore.Qt.RightDockWidgetArea)

        # Create a web view
        self.web_view = QWebEngineView()
        self.web_view.load(QtCore.QUrl("https://www.example.com"))  # Replace with your desired URL

        # Set the web view as the main widget of the dock widget
        self.setWidget(self.web_view)

def runMacro():
    mw = FreeCADGui.getMainWindow()

    # Create and add the dock widget
    dock_widget = WebBrowserDockWidget(mw)
    mw.addDockWidget(QtCore.Qt.RightDockWidgetArea, dock_widget)
    dock_widget.show()

runMacro()