Implement :download/hints via QtNetwork

qutebrowser/browser/commands.py

@@ -1294,8 +1294,7 @@ class CommandDispatcher:
         except inspector.WebInspectorError as e:
             raise cmdexc.CommandError(e)
 
-    @cmdutils.register(instance='command-dispatcher', scope='window',
-                       backend=usertypes.Backend.QtWebKit)
+    @cmdutils.register(instance='command-dispatcher', scope='window')
     @cmdutils.argument('dest_old', hide=True)
     def download(self, url=None, dest_old=None, *, mhtml_=False, dest=None):
         """Download a given URL, or current page if no URL given.
@@ -1335,10 +1334,16 @@ class CommandDispatcher:
             self._download_mhtml(dest)
         else:
             tab = self._current_widget()
+
             # FIXME:qtwebengine have a proper API for this
             # pylint: disable=protected-access
-            qnam = tab._widget.page().networkAccessManager()
+            try:
+                qnam = tab._widget.page().networkAccessManager()
+            except AttributeError:
+                # QtWebEngine
+                qnam = None
             # pylint: enable=protected-access
+
             if dest is None:
                 target = None
             else:
@@ -1352,6 +1357,10 @@ class CommandDispatcher:
             dest: The file path to write the download to.
         """
         tab = self._current_widget()
+        if tab.backend == usertypes.Backend.QtWebEngine:
+            raise cmdexc.CommandError("Download --mhtml is not implemented "
+                                      "with QtWebEngine yet")
+
         if dest is None:
             suggested_fn = self._current_title() + ".mht"
             suggested_fn = utils.sanitize_filename(suggested_fn)

qutebrowser/browser/hints.py

@@ -285,7 +285,11 @@ class HintActions:
 
         # FIXME:qtwebengine get a proper API for this
         # pylint: disable=protected-access
-        qnam = elem._elem.webFrame().page().networkAccessManager()
+        try:
+            qnam = elem._elem.webFrame().page().networkAccessManager()
+        except AttributeError:
+            # QtWebEngine
+            qnam = None
         # pylint: enable=protected-access
 
         # FIXME:qtwebengine do this with QtWebEngine downloads?
@@ -663,11 +667,6 @@ class HintManager(QObject):
         tab = tabbed_browser.currentWidget()
         if tab is None:
             raise cmdexc.CommandError("No WebView available yet!")
-        if (tab.backend == usertypes.Backend.QtWebEngine and
-                target == Target.download):
-            message.error("The download target is not available yet with "
-                          "QtWebEngine.")
-            return
 
         mode_manager = objreg.get('mode-manager', scope='window',
                                   window=self._win_id)

tests/end2end/features/test_downloads_bdd.py

@@ -25,10 +25,6 @@ import pytest_bdd as bdd
 bdd.scenarios('downloads.feature')
 
 
-pytestmark = pytest.mark.qtwebengine_todo("Downloads not implemented yet",
-                                          run=False)
-
-
 PROMPT_MSG = ("Asking question <qutebrowser.utils.usertypes.Question "
               "default={!r} mode=<PromptMode.download: 5> text=* "
               "title='Save file to:'>, *")