We want to preserve the backend checks, because they may also detect
bugs. So we do the debouncing on the frontend instead, transitioning
into a temporary state until the background op completes.
https://forums.ankiweb.net/t/anki-2-1-50-beta/15608/74
When we updated to flask 2.0, the default caching time changed to
0. When setting the HTML of a new card side in the DOM, the browser
first removes the existing content (including styling), then sends a
HTTP request to us to check whether the file has changed or not. By the
time the answer has arrived, the browser has repainted without the
styling, and thus we get a flicker.
A side-effect of reverting to flask 1.x behaviour is that external changes
to media files will not be reflected in Anki for an hour, unless Anki
is restarted, or the caches are cleared manually with an add-on. An
alternative approach would be to pre-fetch the css files like we do with
images, but there are other things like fonts to think about as well.
Closes#1455
* Add "Show duplicates" to LabelContainer
* Avoid bubbling down the duplicate logic into EditorField
* Move duplicate link into its own slot
to center it between name/description and field-state.
* Revert "Move duplicate link into its own slot"
This reverts commit 3a4511042da7083a52d67b58550b13d873dcbea5.
* Justify dupes within FieldState
to achieve the same result as before while avoiding additional logic within EditorField.
Co-Authored-By: Henrik Giesel <hengiesel@gmail.com>
* Set QT_QPA_PLATFORM for Win on recent Qt versions
Erroneously dropped for Qt 5.15.1+.
* Enable original shortcut to create copy
* minor tweaks to comment to make it clearer (dae)
* Add py3.9 to hooks
This follows examples from efb1ce46d4 I assume the
hooks were missed because those were not considered types but strings.
I did not even try to run pyupgrade and did the change manually, then used bazel format
* remove wildcard import in find.py, and change Any to object (dae)
Kept the favicon, but have reverted the rest, as it unfortunately did
not seem to prevent the issue from occurring.
Original discussion: https://github.com/ankitects/anki/pull/1369
This reverts commit 6d0f7e7f05.
Fixes#983
This has been a long-standing issue that was infrequent enough on
developer machines that we weren't able to get to the bottom of it before
now. As luck would have it, the new ARM build had just the right timing
for this to occur every few invocations, and I was able to narrow it down
to the call that turns off the cache.
We don't really want the cache, so this is not a great solution. But I
ran into trouble when trying to figure out a better solution:
- Calling setHttpCacheType() earlier (eg immediately after creating the
page) fails.
- It even fails if you attempt to change the setting in the shared
default profile before any webviews are loaded:
```
def setupMainWindow(self) -> None:
QWebEngineProfile.defaultProfile().setHttpCacheType(QWebEngineProfile.HttpCacheType.NoCache)
```
- Creating a profile separately, and passing it into QWebEnginePage()
does work. But it introduces a warning each time a webview is deallocated,
and I fear it may lead to crashes:
```
Release of profile requested but WebEnginePage still not deleted. Expect troubles !
```
I tried various combinations of parents for the profile and page, and
turning web._page into an unretained property, but could not figure it out.
Some Googling pulls up a bunch of other people who seem to have hit similar
issues with PyQt. If anyone has any ideas, they'd be welcome; in the mean
time, I guess we're better off using up some of the user's disk
space than sometimes failing to load.
The profile-in-advance code I tried is below:
```
diff --git a/qt/aqt/webview.py b/qt/aqt/webview.py
index 1c96112d8..4f3e91284 100644
--- a/qt/aqt/webview.py
+++ b/qt/aqt/webview.py
@@ -23,9 +23,49 @@ serverbaseurl = re.compile(r"^.+:\/\/[^\/]+")
BridgeCommandHandler = Callable[[str], Any]
+def _create_profile(parent: QObject) -> QWebEngineProfile:
+ qwebchannel = ":/qtwebchannel/qwebchannel.js"
+ jsfile = QFile(qwebchannel)
+ if not jsfile.open(QIODevice.OpenModeFlag.ReadOnly):
+ print(f"Error opening '{qwebchannel}': {jsfile.error()}", file=sys.stderr)
+ jstext = bytes(cast(bytes, jsfile.readAll())).decode("utf-8")
+ jsfile.close()
+
+ script = QWebEngineScript()
+ script.setSourceCode(
+ jstext
+ + """
+ var pycmd, bridgeCommand;
+ new QWebChannel(qt.webChannelTransport, function(channel) {
+ bridgeCommand = pycmd = function (arg, cb) {
+ var resultCB = function (res) {
+ // pass result back to user-provided callback
+ if (cb) {
+ cb(JSON.parse(res));
+ }
+ }
+
+ channel.objects.py.cmd(arg, resultCB);
+ return false;
+ }
+ pycmd("domDone");
+ });
+ """
+ )
+ script.setWorldId(QWebEngineScript.ScriptWorldId.MainWorld)
+ script.setInjectionPoint(QWebEngineScript.InjectionPoint.DocumentReady)
+ script.setRunsOnSubFrames(False)
+
+ profile = QWebEngineProfile(parent)
+ profile.setHttpCacheType(QWebEngineProfile.HttpCacheType.NoCache)
+ profile.scripts().insert(script)
+ return profile
+
+
class AnkiWebPage(QWebEnginePage):
- def __init__(self, onBridgeCmd: BridgeCommandHandler) -> None:
- QWebEnginePage.__init__(self)
+ def __init__(self, onBridgeCmd: BridgeCommandHandler, parent: QObject) -> None:
+ profile = _create_profile(parent)
+ QWebEnginePage.__init__(self, profile, parent)
self._onBridgeCmd = onBridgeCmd
self._setupBridge()
self.open_links_externally = True
@@ -46,39 +86,6 @@ class AnkiWebPage(QWebEnginePage):
self._channel.registerObject("py", self._bridge)
self.setWebChannel(self._channel)
- qwebchannel = ":/qtwebchannel/qwebchannel.js"
- jsfile = QFile(qwebchannel)
- if not jsfile.open(QIODevice.OpenModeFlag.ReadOnly):
- print(f"Error opening '{qwebchannel}': {jsfile.error()}", file=sys.stderr)
- jstext = bytes(cast(bytes, jsfile.readAll())).decode("utf-8")
- jsfile.close()
-
- script = QWebEngineScript()
- script.setSourceCode(
- jstext
- + """
- var pycmd, bridgeCommand;
- new QWebChannel(qt.webChannelTransport, function(channel) {
- bridgeCommand = pycmd = function (arg, cb) {
- var resultCB = function (res) {
- // pass result back to user-provided callback
- if (cb) {
- cb(JSON.parse(res));
- }
- }
-
- channel.objects.py.cmd(arg, resultCB);
- return false;
- }
- pycmd("domDone");
- });
- """
- )
- script.setWorldId(QWebEngineScript.ScriptWorldId.MainWorld)
- script.setInjectionPoint(QWebEngineScript.InjectionPoint.DocumentReady)
- script.setRunsOnSubFrames(False)
- self.profile().scripts().insert(script)
-
def javaScriptConsoleMessage(
self,
level: QWebEnginePage.JavaScriptConsoleMessageLevel,
@@ -228,7 +235,7 @@ class AnkiWebView(QWebEngineView):
) -> None:
QWebEngineView.__init__(self, parent=parent)
self.set_title(title)
- self._page = AnkiWebPage(self._onBridgeCmd)
+ self._page = AnkiWebPage(self._onBridgeCmd, self)
self._page.setBackgroundColor(
self.get_window_bg_color(theme_manager.night_mode)
@@ -242,7 +249,6 @@ class AnkiWebView(QWebEngineView):
self.requiresCol = True
self.setPage(self._page)
- self._page.profile().setHttpCacheType(QWebEngineProfile.HttpCacheType.NoCache)
self.resetHandlers()
self.allowDrops = False
self._filterSet = False
```
This was motivated by the fact that recording was crashing on the native
M1 build. That ended up being mostly a PEBKAC problem - turns out the
Mac Mini has no built-in microphone 🤦.
I still thinks this has some value though - it doesn't crash in such
cases, and probably doesn't suffer from the problem shown in this thread
either:
https://forums.ankiweb.net/t/anki-crashes-when-trying-to-record-on-mac/14764
For now, this is only enabled when running on arm64. If it turns out to
be reliable, it could be offered as an option on amd64 as well.
More pleasant to work with than ObjectiveC, which will help with the
following commit.
Swift libraries weren't added to macOS until 10.14.4, so theme
autodetection will fail on 10.14.0-10.14.3. The Qt6 build will have its
minimum version bumped to 10.14.4; the Qt5 build will remain on 10.13.4.
Bazel's rules_swift doesn't currently support building Swift dylibs, so
we need to invoke swiftc directly via a genrule().
* Update about.py
* Add cqg to list
for his contributions to the community (testing, support, suggestions).
* Add the AnKing to list
for his efforts to keep add-ons compatible with new versions and popularizing Anki in the medical community via YouTube, Reddit and other social media.
* Flip arrows of Bootstrap-styled <select>s for RTL langs
* Use the dir attribute to set document direction
* Remove unused variable and fix use of CSS var
* Remove unneeded old.note_type() call
Fixes TypeError thrown after deleting a notetype that's currently selected in the editor.
* Handle IndexError on notetype change
Occurs in the Add window when changing the notetype via NotetypeChooser from
- the notetype that's auto-selected after deleting the currently selected notetype
- to a notetype with fewer fields than the auto-selected one
* Add return to exception handler
to properly ignore the command.
The packaged builds of 2.1.50 use python -OO, which means our assertion
statements won't be run. This is not an issue for unit tests (as we
don't run them from a packaged build), or for type assertions (which are
added for mypy's benefit), but we do need to ensure that invariant checks
are still run.
