import sys
from PySide2.QtCore import QObject, QUrl, Signal, Slot
from PySide2.QtWidgets import QApplication
from PySide2.QtWebChannel import QWebChannel
from PySide2.QtWebEngineWidgets import QWebEngineView
html = """
Benten
"""
class TalkyTalky(QObject):
send_text_js_side = Signal(str)
send_list_js_side = Signal(list)
def __init__(self, parent=None):
super().__init__(parent)
if __name__ == '__main__':
app = QApplication(sys.argv)
view = QWebEngineView()
page = view.page()
talkie = TalkyTalky()
def foo():
channel = QWebChannel(page)
channel.registerObject("talkie", talkie)
page.setWebChannel(channel)
page.setHtml(html, QUrl("qrc:/index.html"))
foo()
view.show()
from PySide2.QtCore import QTimer
timer = QTimer()
timer.setSingleShot(True)
timer.setInterval(1000)
timer.timeout.connect(lambda x=None: talkie.send_text_js_side.emit("Hello from Python!"))
timer.start()
timer2 = QTimer()
timer2.setSingleShot(True)
timer2.setInterval(5000)
timer2.timeout.connect(lambda x=None: talkie.send_list_js_side.emit(["Hello from Python list!"]))
timer2.start()
# -> leads to js: Uncaught TypeError: Cannot read property '0' of null
app.exec_()