Shut down tabs while quitting

qutebrowser/app.py

@@ -673,6 +673,9 @@ class Application(QApplication):
             return
         self._shutting_down = True
         log.destroy.debug("Shutting down with status {}...".format(status))
+        # Close all tabs
+        log.destroy.debug("Closing tabs...")
+        self.mainwindow.tabs.shutdown()
         # Save everything
         if hasattr(self, 'config') and self.config is not None:
             to_save = []

qutebrowser/browser/signalfilter.py

@@ -81,7 +81,11 @@ class SignalFilter(QObject):
             The target signal if the sender was the current widget.
         """
         log_signal = signal_name(signal) not in self.BLACKLIST
+        try:
             tabidx = self._tabs.indexOf(tab)
+        except RuntimeError:
+            # The tab has been deleted already
+            return
         if tabidx == self._tabs.currentIndex():
             if log_signal:
                 logger.debug("emitting: {} (tab {})".format(

qutebrowser/widgets/tabbedbrowser.py

@@ -223,7 +223,7 @@ class TabbedBrowser(TabWidget):
             log.destroy.debug("Error while shutting down tabs: {}: {}".format(
                 e.__class__.__name__, e))
         for tab in self.widgets:
-            self._tabs.remove(tab)
+            self._remove_tab(tab)
 
     def close_tab(self, tab):
         """Close a tab with either index or tab given.
@@ -261,6 +261,7 @@ class TabbedBrowser(TabWidget):
         if not url.isEmpty():
             qt_ensure_valid(url)
             self.url_stack.append(url)
+        tab.blockSignals(True)
         self._tabs.remove(tab)
         self.removeTab(idx)
         tab.deleteLater()
@@ -366,7 +367,11 @@ class TabbedBrowser(TabWidget):
         Args:
             tab: The tab where the signal belongs to.
         """
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         if idx == -1:
             # We can get signals for tabs we already deleted...
             log.webview.debug("Got invalid tab {}!".format(tab))
@@ -389,8 +394,14 @@ class TabbedBrowser(TabWidget):
             text: The text to set.
         """
         log.webview.debug("title changed to '{}'".format(text))
-        if text:
+        if not text:
+            log.webview.debug("ignoring title change")
+            return
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         if idx == -1:
             # We can get signals for tabs we already deleted...
             log.webview.debug("Got invalid tab {}!".format(tab))
@@ -398,8 +409,6 @@ class TabbedBrowser(TabWidget):
         self.setTabText(idx, text)
         if idx == self.currentIndex():
             self.title_changed.emit('{} - qutebrowser'.format(text))
-        else:
-            log.webview.debug("ignoring title change")
 
     @pyqtSlot(WebView, str)
     def on_url_text_changed(self, tab, url):
@@ -409,7 +418,11 @@ class TabbedBrowser(TabWidget):
             tab: The WebView where the title was changed.
             url: The new URL.
         """
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         if idx == -1:
             # We can get signals for tabs we already deleted...
             log.webview.debug("Got invalid tab {}!".format(tab))
@@ -428,7 +441,11 @@ class TabbedBrowser(TabWidget):
         """
         if not config.get('tabbar', 'show-favicons'):
             return
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         if idx == -1:
             # We can get *_changed signals for tabs we already deleted...
             log.webview.debug("Got invalid tab {}!".format(tab))
@@ -454,7 +471,11 @@ class TabbedBrowser(TabWidget):
 
     def on_load_progress(self, tab, perc):
         """Adjust tab indicator on load progress."""
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         start = config.get('colors', 'tab.indicator.start')
         stop = config.get('colors', 'tab.indicator.stop')
         system = config.get('colors', 'tab.indicator.system')
@@ -463,7 +484,11 @@ class TabbedBrowser(TabWidget):
 
     def on_load_finished(self, tab, ok):
         """Adjust tab indicator when loading finished."""
+        try:
             idx = self.indexOf(tab)
+        except RuntimeError:
+            # We can get signals for tabs we already deleted...
+            return
         if ok:
             start = config.get('colors', 'tab.indicator.start')
             stop = config.get('colors', 'tab.indicator.stop')