PySide6 backend not working

[AVK636]

Installing pywebview with the PySide6 backend like that

pip3 install pywebview[pyside6]

leads to the following error when launching a window:

  File "C:\Users\myuser\Miniconda3\envs\myenv\lib\site-packages\webview\platforms\qt.py", line 323, in __init__
    center = QApplication.desktop().availableGeometry().center() - self.rect().center()
AttributeError: type object 'PySide6.QtWidgets.QApplication' has no attribute 'desktop'

[sbbosco]

@AVK636 I've had to make the following changes to get PySide6 to work. I haven't tried PyQt6 yet.

from qtpy import PYQT6, PYSIDE6

#1 
def contextMenuEvent(self, event):
    if PYSIDE6:
        menu = self.createStandardContextMenu()
    else:
        menu = self.page().createStandardContextMenu()

#2 
if PYSIDE6:
    center = QScreen.availableGeometry(QApplication.primaryScreen()).center() - self.rect().center()
    self.move(center.x(), center.y() - 16)
else:
    center = QApplication.desktop().availableGeometry().center() - self.rect().center()
    self.move(center.x(), center.y())

#3 def on_evaluate_js
try:    # < Qt5.6
    if PYSIDE6:
        self.view.page().runJavaScript(script, 0, return_result)
    else:
        self.view.page().runJavaScript(script, return_result)

Sorry if this is kind of messy. I'm on my way to the airport.

[AVK636]

Thanks, with those changes it works for me as well. However, I observed strange behaviour regarding the browser cache, cookies, etc. With PySide6, the webview doesn't seem to save any cached data or cookies. With PyQt5 on Windows, the webview created a pywebview dir in my local app data dir. Using PySide6, this is not the case. Any ideas on that?

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[sbbosco]

@AVK636 This code seems to enable disk cache for PySide6.

    class WebPage(QWebPage):
        def __init__(self, parent=None):
            qprofile = QWebEngineProfile('diskcache') if PYSIDE6 else None
            super(BrowserView.WebPage, self).__init__(qprofile, parent)
            print(self.profile().httpCacheType())
            print(self.profile().cachePath())
            print(self.profile().persistentCookiesPolicy())

You will need to add QWebEngineProfile to the import statement

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[r0x0r]

@sbbosco Care to create a PR?

[sbbosco]

@r0x0r I'll try to work on this in the next few weeks. Thanks!

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

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