Add post_event to tab API

qutebrowser/browser/browsertab.py

@@ -23,7 +23,7 @@ import itertools
 
 from PyQt5.QtCore import pyqtSignal, pyqtSlot, QUrl, QObject, QSizeF
 from PyQt5.QtGui import QIcon
-from PyQt5.QtWidgets import QWidget, QApplication
+from PyQt5.QtWidgets import QWidget
 
 from qutebrowser.keyinput import modeman
 from qutebrowser.config import config
@@ -532,6 +532,10 @@ class AbstractTab(QWidget):
         self._load_status = val
         self.load_status_changed.emit(val.name)
 
+    def post_event(self, evt):
+        """Send the given event to the underlying widget."""
+        raise NotImplementedError
+
     @pyqtSlot('QMouseEvent')
     def _on_hint_mouse_event(self, evt):
         """Post a new mouse event from a hintmanager."""
@@ -540,7 +544,7 @@ class AbstractTab(QWidget):
         #                   focusProxy()?
         log.modes.debug("Hint triggered, focusing {!r}".format(self))
         self._widget.setFocus()
-        QApplication.postEvent(self._widget, evt)
+        self.post_event(evt)
 
     @pyqtSlot(QUrl)
     def _on_link_clicked(self, url):

qutebrowser/browser/webengine/webenginetab.py

@@ -200,12 +200,9 @@ class WebEngineScroller(browsertab.AbstractScroller):
         # FIXME:qtwebengine Abort scrolling if the minimum/maximum was reached.
         press_evt = QKeyEvent(QEvent.KeyPress, key, Qt.NoModifier, 0, 0, 0)
         release_evt = QKeyEvent(QEvent.KeyRelease, key, Qt.NoModifier, 0, 0, 0)
-        recipient = self._widget.focusProxy()
         for _ in range(count):
-            # If we get a segfault here, we might want to try sendEvent
+            self._tab.post_event(press_evt)
-            # instead.
+            self._tab.post_event(release_evt)
-            QApplication.postEvent(recipient, press_evt)
-            QApplication.postEvent(recipient, release_evt)
 
     @pyqtSlot()
     def _update_pos(self):
@@ -516,3 +513,9 @@ class WebEngineTab(browsertab.AbstractTab):
             page.contentsSizeChanged.connect(self.contents_size_changed)
         except AttributeError:
             log.stub('contentsSizeChanged, on Qt < 5.7')
+
+    def post_event(self, evt):
+        # If we get a segfault here, we might want to try sendEvent
+        # instead.
+        recipient = self._widget.focusProxy()
+        QApplication.postEvent(recipient, evt)

qutebrowser/browser/webkit/webkittab.py

@@ -28,6 +28,7 @@ from PyQt5.QtCore import (pyqtSlot, Qt, QEvent, QUrl, QPoint, QTimer, QSizeF,
 from PyQt5.QtGui import QKeyEvent
 from PyQt5.QtWebKitWidgets import QWebPage, QWebFrame
 from PyQt5.QtWebKit import QWebSettings
+from PyQt5.QtWidgets import QApplication
 from PyQt5.QtPrintSupport import QPrinter
 
 from qutebrowser.browser import browsertab
@@ -677,3 +678,8 @@ class WebKitTab(browsertab.AbstractTab):
         frame.contentsSizeChanged.connect(self._on_contents_size_changed)
         frame.initialLayoutCompleted.connect(self._on_history_trigger)
         page.link_clicked.connect(self._on_link_clicked)
+
+    def post_event(self, evt):
+        # If we get a segfault here, we might want to try sendEvent
+        # instead.
+        QApplication.postEvent(self._widget, evt)