Move _on_proxy_authentication_required to WebEngineTab

qutebrowser/browser/webengine/webview.py

@@ -20,7 +20,6 @@
 """The main browser widget for QtWebEngine."""
 
 import functools
-import html
 
 from PyQt5.QtCore import pyqtSignal, pyqtSlot, QUrl, PYQT_VERSION
 from PyQt5.QtGui import QPalette
@@ -134,8 +133,6 @@ class WebEnginePage(QWebEnginePage):
         self._is_shutting_down = False
         self.featurePermissionRequested.connect(
             self._on_feature_permission_requested)
-        self.proxyAuthenticationRequired.connect(
-            self._on_proxy_authentication_required)
         self._theme_color = theme_color
         self._set_bg_color()
         objreg.get('config').changed.connect(self._set_bg_color)
@@ -147,20 +144,6 @@ class WebEnginePage(QWebEnginePage):
             col = self._theme_color
         self.setBackgroundColor(col)
 
-    @pyqtSlot(QUrl, 'QAuthenticator*', 'QString')
-    def _on_proxy_authentication_required(self, _url, authenticator,
-                                          proxy_host):
-        """Called when a proxy needs authentication."""
-        msg = "<b>{}</b> requires a username and password.".format(
-            html.escape(proxy_host))
-        answer = message.ask(
-            title="Proxy authentication required", text=msg,
-            mode=usertypes.PromptMode.user_pwd,
-            abort_on=[self.loadStarted, self.shutting_down])
-        if answer is not None:
-            authenticator.setUser(answer.user)
-            authenticator.setPassword(answer.password)
-
     @pyqtSlot(QUrl, 'QWebEnginePage::Feature')
     def _on_feature_permission_requested(self, url, feature):
         """Ask the user for approval for geolocation/media/etc.."""