QtWebEngine: Fix insert mode checks with zoom

Fixes #2169

CHANGELOG.asciidoc

@@ -41,6 +41,7 @@ Fixed
 - `:record-macro` (`q`) now doesn't try to record macros for special keys without a text.
 - Fixed PAC (proxy autoconfig) not working with QtWebKit
 - `:download --mhtml` now uses the new file dialog
+- Insert mode now gets entered correctly with a non-100% zoom
 
 v0.9.1
 ------

qutebrowser/browser/mouse.py

@@ -95,7 +95,8 @@ class MouseEventFilter(QObject):
         self._ignore_wheel_event = True
 
         if e.button() != Qt.NoButton:
-            self._tab.elements.find_at_pos(e.pos(),
+            zoom = self._tab.zoom.factor()
+            self._tab.elements.find_at_pos(e.pos() / zoom,
                                            self._mousepress_insertmode_cb)
 
         return False

tests/end2end/test_insert_mode.py

@@ -35,12 +35,15 @@ import pytest
     ('autofocus.html', 'qute-input-autofocus', 'keypress', 'cutebrowser',
      'true'),
 ])
-def test_insert_mode(file_name, elem_id, source, input_text, auto_insert,
+@pytest.mark.parametrize('zoom', [100, 125])
+def test_insert_mode(file_name, elem_id, source, input_text, auto_insert, zoom,
                      quteproc, request):
     url_path = 'data/insert_mode_settings/html/{}'.format(file_name)
     quteproc.open_path(url_path)
 
     quteproc.set_setting('input', 'auto-insert-mode', auto_insert)
+    quteproc.send_cmd(':zoom {}'.format(zoom))
+
     quteproc.send_cmd(':click-element --force-event id {}'.format(elem_id))
     quteproc.wait_for(message='Entering mode KeyMode.insert (reason: *)')
     quteproc.send_cmd(':debug-set-fake-clipboard')