Fix types in @pyqtSlot decorations

PyQt 5.5 enforces correct type signatures, and there were a lot of
places where we were simply wrong, causing qutebrowser to not start at
all...

qutebrowser/browser/downloads.py

@@ -231,7 +231,7 @@ class DownloadItemStats(QObject):
         else:
             return remaining_bytes / avg
 
-    @pyqtSlot(int, int)
+    @pyqtSlot('qint64', 'qint64')
     def on_download_progress(self, bytes_done, bytes_total):
         """Update local variables when the download progress changed.
 
@@ -650,7 +650,7 @@ class DownloadItem(QObject):
         except OSError as e:
             self._die(e.strerror)
 
-    @pyqtSlot(int)
+    @pyqtSlot('QNetworkReply::NetworkError')
     def on_reply_error(self, code):
         """Handle QNetworkReply errors."""
         if code == QNetworkReply.OperationCanceledError:

qutebrowser/browser/network/networkmanager.py

@@ -253,7 +253,7 @@ class NetworkManager(QNetworkAccessManager):
         except KeyError:
             pass
 
-    @pyqtSlot('QNetworkReply', 'QAuthenticator')
+    @pyqtSlot('QNetworkReply*', 'QAuthenticator*')
     def on_authentication_required(self, reply, authenticator):
         """Called when a website needs authentication."""
         user, password = None, None
@@ -286,7 +286,7 @@ class NetworkManager(QNetworkAccessManager):
             authenticator.setUser(user)
             authenticator.setPassword(password)
 
-    @pyqtSlot('QNetworkProxy', 'QAuthenticator')
+    @pyqtSlot('QNetworkProxy', 'QAuthenticator*')
     def on_proxy_authentication_required(self, proxy, authenticator):
         """Called when a proxy needs authentication."""
         proxy_id = ProxyId(proxy.type(), proxy.hostName(), proxy.port())

qutebrowser/browser/webpage.py

@@ -288,7 +288,7 @@ class BrowserPage(QWebPage):
                                       window=self._win_id)
         download_manager.get_request(req, page=self)
 
-    @pyqtSlot('QNetworkReply')
+    @pyqtSlot('QNetworkReply*')
     def on_unsupported_content(self, reply):
         """Handle an unsupportedContent signal.
 
@@ -334,7 +334,7 @@ class BrowserPage(QWebPage):
         else:
             self.error_occurred = False
 
-    @pyqtSlot('QWebFrame', 'QWebPage::Feature')
+    @pyqtSlot('QWebFrame*', 'QWebPage::Feature')
     def on_feature_permission_requested(self, frame, feature):
         """Ask the user for approval for geolocation/notifications."""
         options = {
@@ -439,7 +439,7 @@ class BrowserPage(QWebPage):
         if 'scroll-pos' in data and frame.scrollPosition() == QPoint(0, 0):
             frame.setScrollPosition(data['scroll-pos'])
 
-    @pyqtSlot(str)
+    @pyqtSlot(usertypes.ClickTarget)
     def on_start_hinting(self, hint_target):
         """Emitted before a hinting-click takes place.
 

qutebrowser/browser/webview.py

@@ -352,7 +352,7 @@ class WebView(QWebView):
             frame = self.page().mainFrame()
             frame.javaScriptWindowObjectCleared.connect(self.add_js_bridge)
 
-    @pyqtSlot(QWebFrame)
+    @pyqtSlot()
     def add_js_bridge(self):
         """Add the javascript bridge for qute:... pages."""
         frame = self.sender()

qutebrowser/commands/runners.py

@@ -258,6 +258,7 @@ class CommandRunner(QObject):
                 result.cmd.run(self._win_id, args)
 
     @pyqtSlot(str, int)
+    @pyqtSlot(str)
     def run_safely(self, text, count=None):
         """Run a command and display exceptions in the statusbar."""
         try:

qutebrowser/completion/models/miscmodels.py

@@ -26,6 +26,7 @@ from qutebrowser.config import config, configdata
 from qutebrowser.utils import objreg, log
 from qutebrowser.commands import cmdutils
 from qutebrowser.completion.models import base
+from qutebrowser.mainwindow import mainwindow
 
 
 class CommandCompletionModel(base.BaseCompletionModel):
@@ -176,9 +177,7 @@ class TabCompletionModel(base.BaseCompletionModel):
         objreg.get("app").new_window.connect(self.on_new_window)
         self.rebuild()
 
-    # slot argument should be mainwindow.MainWindow but can't import
-    # that at module level because of import loops.
-    @pyqtSlot(object)
+    @pyqtSlot(mainwindow.MainWindow)
     def on_new_window(self, window):
         """Add hooks to new windows."""
         window.tabbed_browser.new_tab.connect(self.on_new_tab)

qutebrowser/config/config.py

@@ -95,6 +95,7 @@ class change_filter:  # pylint: disable=invalid-name
         """
         if self._function:
             @pyqtSlot(str, str)
+            @pyqtSlot()
             @functools.wraps(func)
             def wrapper(sectname=None, optname=None):
                 if sectname is None and optname is None:
@@ -108,6 +109,7 @@ class change_filter:  # pylint: disable=invalid-name
                     return func()
         else:
             @pyqtSlot(str, str)
+            @pyqtSlot()
             @functools.wraps(func)
             def wrapper(wrapper_self, sectname=None, optname=None):
                 if sectname is None and optname is None:

qutebrowser/mainwindow/statusbar/percentage.py

@@ -22,6 +22,7 @@
 from PyQt5.QtCore import pyqtSlot
 
 from qutebrowser.mainwindow.statusbar import textbase
+from qutebrowser.browser import webview
 
 
 class Percentage(textbase.TextBase):
@@ -48,7 +49,7 @@ class Percentage(textbase.TextBase):
         else:
             self.setText('[{:2}%]'.format(y))
 
-    @pyqtSlot(object)
+    @pyqtSlot(webview.WebView)
     def on_tab_changed(self, tab):
         """Update scroll position when tab changed."""
         self.set_perc(*tab.scroll_pos)

qutebrowser/mainwindow/statusbar/progress.py

@@ -59,7 +59,7 @@ class Progress(QProgressBar):
         self.setValue(0)
         self.show()
 
-    @pyqtSlot(int)
+    @pyqtSlot(webview.WebView)
     def on_tab_changed(self, tab):
         """Set the correct value when the current tab changed."""
         if self is None:  # pragma: no branch

qutebrowser/mainwindow/statusbar/text.py

@@ -24,6 +24,7 @@ from PyQt5.QtCore import pyqtSlot
 from qutebrowser.config import config
 from qutebrowser.mainwindow.statusbar import textbase
 from qutebrowser.utils import usertypes, log, objreg
+from qutebrowser.browser import webview
 
 
 class Text(textbase.TextBase):
@@ -98,7 +99,7 @@ class Text(textbase.TextBase):
         """Clear jstext when page loading started."""
         self._jstext = ''
 
-    @pyqtSlot(int)
+    @pyqtSlot(webview.WebView)
     def on_tab_changed(self, tab):
         """Set the correct jstext when the current tab changed."""
         self._jstext = tab.statusbar_message

qutebrowser/mainwindow/statusbar/url.py

@@ -158,7 +158,7 @@ class UrlText(textbase.TextBase):
             self._hover_url = None
         self._update_url()
 
-    @pyqtSlot(int)
+    @pyqtSlot(webview.WebView)
     def on_tab_changed(self, tab):
         """Update URL if the tab changed."""
         self._hover_url = None

qutebrowser/misc/ipc.py

@@ -221,7 +221,7 @@ class IPCServer(QObject):
             # This means we only use setSocketOption on Windows...
             os.chmod(self._server.fullServerName(), 0o700)
 
-    @pyqtSlot(int)
+    @pyqtSlot('QLocalSocket::LocalSocketError')
     def on_error(self, err):
         """Raise SocketError on fatal errors."""
         if self._socket is None: