2019-02-05 04:59:03 +01:00
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# Copyright: Ankitects Pty Ltd and contributors
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2012-12-21 08:51:59 +01:00
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# -*- coding: utf-8 -*-
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# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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2018-03-08 08:48:14 +01:00
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import json
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2017-08-28 13:15:38 +02:00
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import math
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2019-12-20 10:19:03 +01:00
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import sys
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from anki.lang import _
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from anki.utils import isLin, isMac, isWin
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2020-01-14 23:53:57 +01:00
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from aqt import gui_hooks
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2012-12-21 08:51:59 +01:00
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from aqt.qt import *
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2019-06-27 01:49:05 +02:00
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from aqt.utils import openLink
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2012-12-21 08:51:59 +01:00
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# Page for debug messages
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##########################################################################
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2019-12-23 01:34:10 +01:00
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class AnkiWebPage(QWebEnginePage): # type: ignore
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2016-06-06 07:50:03 +02:00
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def __init__(self, onBridgeCmd):
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2016-05-31 10:51:40 +02:00
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QWebEnginePage.__init__(self)
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2016-06-06 07:50:03 +02:00
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self._onBridgeCmd = onBridgeCmd
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self._setupBridge()
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def _setupBridge(self):
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class Bridge(QObject):
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2018-03-08 08:48:14 +01:00
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@pyqtSlot(str, result=str)
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2016-06-06 07:50:03 +02:00
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def cmd(self, str):
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2018-03-08 08:48:14 +01:00
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return json.dumps(self.onCmd(str))
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2016-06-06 07:50:03 +02:00
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self._bridge = Bridge()
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self._bridge.onCmd = self._onCmd
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self._channel = QWebChannel(self)
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self._channel.registerObject("py", self._bridge)
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self.setWebChannel(self._channel)
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2019-12-23 01:34:10 +01:00
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js = QFile(":/qtwebchannel/qwebchannel.js")
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2016-06-06 07:50:03 +02:00
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assert js.open(QIODevice.ReadOnly)
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2019-12-23 01:34:10 +01:00
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js = bytes(js.readAll()).decode("utf-8")
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2016-06-06 07:50:03 +02:00
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script = QWebEngineScript()
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2019-12-23 01:34:10 +01:00
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script.setSourceCode(
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js
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+ """
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2016-06-06 07:50:03 +02:00
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var pycmd;
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new QWebChannel(qt.webChannelTransport, function(channel) {
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2018-03-08 08:48:14 +01:00
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pycmd = function (arg, cb) {
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var resultCB = function (res) {
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// pass result back to user-provided callback
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if (cb) {
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cb(JSON.parse(res));
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}
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}
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2018-10-23 08:47:01 +02:00
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channel.objects.py.cmd(arg, resultCB);
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return false;
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2018-03-08 08:48:14 +01:00
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}
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2016-06-06 07:50:03 +02:00
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pycmd("domDone");
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});
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2019-12-23 01:34:10 +01:00
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"""
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)
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2016-06-06 07:50:03 +02:00
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script.setWorldId(QWebEngineScript.MainWorld)
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script.setInjectionPoint(QWebEngineScript.DocumentReady)
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script.setRunsOnSubFrames(False)
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self.profile().scripts().insert(script)
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2016-05-31 10:51:40 +02:00
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def javaScriptConsoleMessage(self, lvl, msg, line, srcID):
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2017-08-06 05:10:51 +02:00
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# not translated because console usually not visible,
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# and may only accept ascii text
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2019-12-23 01:34:10 +01:00
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buf = "JS error on line %(a)d: %(b)s" % dict(a=line, b=msg + "\n")
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2019-05-17 00:43:25 +02:00
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# ensure we don't try to write characters the terminal can't handle
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2019-12-23 01:34:10 +01:00
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buf = buf.encode(sys.stdout.encoding, "backslashreplace").decode(
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sys.stdout.encoding
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)
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2019-05-17 00:43:25 +02:00
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sys.stdout.write(buf)
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2016-05-31 10:51:40 +02:00
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def acceptNavigationRequest(self, url, navType, isMainFrame):
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2017-07-17 04:40:38 +02:00
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if not isMainFrame:
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return True
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2018-10-23 08:11:08 +02:00
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# data: links generated by setHtml()
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if url.scheme() == "data":
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return True
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2018-10-23 08:47:01 +02:00
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# catch buggy <a href='#' onclick='func()'> links
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2017-08-11 12:59:15 +02:00
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from aqt import mw
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2019-12-23 01:34:10 +01:00
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2018-10-23 08:47:01 +02:00
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if url.matches(QUrl(mw.serverURL()), QUrl.RemoveFragment):
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2019-04-10 04:44:01 +02:00
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print("onclick handler needs to return false")
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2017-08-11 12:59:15 +02:00
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return False
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2016-06-06 07:50:03 +02:00
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# load all other links in browser
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openLink(url)
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return False
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def _onCmd(self, str):
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2018-03-08 08:48:14 +01:00
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return self._onBridgeCmd(str)
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2012-12-21 08:51:59 +01:00
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2019-12-23 01:34:10 +01:00
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2012-12-21 08:51:59 +01:00
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# Main web view
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##########################################################################
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2019-12-23 01:34:10 +01:00
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class AnkiWebView(QWebEngineView): # type: ignore
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2017-06-22 08:36:54 +02:00
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def __init__(self, parent=None):
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QWebEngineView.__init__(self, parent=parent)
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2016-07-07 09:23:13 +02:00
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self.title = "default"
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2016-06-06 07:50:03 +02:00
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self._page = AnkiWebPage(self._onBridgeCmd)
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2019-02-25 11:44:27 +01:00
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self._page.setBackgroundColor(self._getWindowColor()) # reduce flicker
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2016-06-06 07:50:03 +02:00
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2017-08-01 06:30:04 +02:00
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self._domDone = True
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2017-08-07 08:01:35 +02:00
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self._pendingActions = []
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2018-10-12 04:08:19 +02:00
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self.requiresCol = True
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2012-12-21 08:51:59 +01:00
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self.setPage(self._page)
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2017-01-08 11:02:49 +01:00
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2017-06-22 09:06:24 +02:00
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self._page.profile().setHttpCacheType(QWebEngineProfile.NoCache)
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2016-05-31 10:51:40 +02:00
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self.resetHandlers()
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2012-12-21 08:51:59 +01:00
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self.allowDrops = False
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2018-10-23 08:06:56 +02:00
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self._filterSet = False
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2019-12-23 01:34:10 +01:00
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QShortcut(
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QKeySequence("Esc"),
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self,
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context=Qt.WidgetWithChildrenShortcut,
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activated=self.onEsc,
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)
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2017-06-22 08:36:54 +02:00
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if isMac:
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for key, fn in [
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(QKeySequence.Copy, self.onCopy),
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(QKeySequence.Paste, self.onPaste),
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(QKeySequence.Cut, self.onCut),
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(QKeySequence.SelectAll, self.onSelectAll),
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]:
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2019-12-23 01:34:10 +01:00
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QShortcut(
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key, self, context=Qt.WidgetWithChildrenShortcut, activated=fn
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)
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QShortcut(
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QKeySequence("ctrl+shift+v"),
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self,
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context=Qt.WidgetWithChildrenShortcut,
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activated=self.onPaste,
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)
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2017-06-22 08:36:54 +02:00
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2017-06-23 06:34:56 +02:00
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def eventFilter(self, obj, evt):
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# disable pinch to zoom gesture
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if isinstance(evt, QNativeGestureEvent):
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return True
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2018-03-02 02:16:02 +01:00
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elif evt.type() == QEvent.MouseButtonRelease:
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if evt.button() == Qt.MidButton and isLin:
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self.onMiddleClickPaste()
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return True
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return False
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2017-06-23 06:34:56 +02:00
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return False
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2017-06-22 08:36:54 +02:00
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def onEsc(self):
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w = self.parent()
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while w:
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if isinstance(w, QDialog) or isinstance(w, QMainWindow):
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from aqt import mw
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2019-12-23 01:34:10 +01:00
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2017-06-22 08:36:54 +02:00
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# esc in a child window closes the window
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if w != mw:
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w.close()
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else:
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# in the main window, removes focus from type in area
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self.parent().setFocus()
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break
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w = w.parent()
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2016-06-06 09:54:39 +02:00
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def onCopy(self):
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self.triggerPageAction(QWebEnginePage.Copy)
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2012-12-21 08:51:59 +01:00
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2016-06-06 09:54:39 +02:00
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def onCut(self):
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self.triggerPageAction(QWebEnginePage.Cut)
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def onPaste(self):
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self.triggerPageAction(QWebEnginePage.Paste)
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2012-12-21 08:51:59 +01:00
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2018-03-02 02:16:02 +01:00
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def onMiddleClickPaste(self):
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self.triggerPageAction(QWebEnginePage.Paste)
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2017-06-22 08:36:54 +02:00
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def onSelectAll(self):
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self.triggerPageAction(QWebEnginePage.SelectAll)
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2020-01-15 22:41:23 +01:00
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def contextMenuEvent(self, evt) -> None:
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2012-12-21 08:51:59 +01:00
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m = QMenu(self)
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a = m.addAction(_("Copy"))
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2020-01-15 22:53:12 +01:00
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a.triggered.connect(self.onCopy) # type: ignore
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2020-01-15 08:45:35 +01:00
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gui_hooks.webview_will_show_context_menu(self, m)
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2012-12-21 08:51:59 +01:00
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m.popup(QCursor.pos())
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def dropEvent(self, evt):
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pass
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2016-05-31 10:51:40 +02:00
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def setHtml(self, html):
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2019-04-29 08:41:47 +02:00
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# discard any previous pending actions
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self._pendingActions = []
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self._domDone = True
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2017-08-07 08:01:35 +02:00
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self._queueAction("setHtml", html)
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def _setHtml(self, html):
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2016-05-31 10:51:40 +02:00
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app = QApplication.instance()
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oldFocus = app.focusWidget()
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2017-08-01 06:30:04 +02:00
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self._domDone = False
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2016-05-31 10:51:40 +02:00
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self._page.setHtml(html)
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# work around webengine stealing focus on setHtml()
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if oldFocus:
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oldFocus.setFocus()
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2016-06-07 06:27:33 +02:00
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def zoomFactor(self):
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2017-11-27 02:01:15 +01:00
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# overridden scale factor?
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webscale = os.environ.get("ANKI_WEBSCALE")
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if webscale:
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return float(webscale)
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2017-08-15 06:47:03 +02:00
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if isMac:
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2017-08-10 07:02:46 +02:00
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return 1
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2016-06-07 06:27:33 +02:00
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screen = QApplication.desktop().screen()
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dpi = screen.logicalDpiX()
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2017-08-15 06:47:03 +02:00
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factor = dpi / 96.0
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if isLin:
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factor = max(1, factor)
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return factor
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2019-12-17 09:43:32 +01:00
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# compensate for qt's integer scaling on windows?
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if qtminor >= 14:
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return 1
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2017-10-05 08:42:46 +02:00
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qtIntScale = self._getQtIntScale(screen)
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2017-08-15 06:47:03 +02:00
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desiredScale = factor * qtIntScale
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newFactor = desiredScale / qtIntScale
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2017-10-05 08:42:46 +02:00
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return max(1, newFactor)
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def _getQtIntScale(self, screen):
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# try to detect if Qt has scaled the screen
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# - qt will round the scale factor to a whole number, so a dpi of 125% = 1x,
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# and a dpi of 150% = 2x
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# - a screen with a normal physical dpi of 72 will have a dpi of 32
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# if the scale factor has been rounded to 2x
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# - different screens have different physical DPIs (eg 72, 93, 102)
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# - until a better solution presents itself, assume a physical DPI at
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# or above 70 is unscaled
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if screen.physicalDpiX() > 70:
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return 1
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elif screen.physicalDpiX() > 35:
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return 2
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else:
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return 3
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2016-06-07 06:27:33 +02:00
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2019-02-25 11:44:27 +01:00
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def _getWindowColor(self):
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if isMac:
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# standard palette does not return correct window color on macOS
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return QColor("#ececec")
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return self.style().standardPalette().color(QPalette.Window)
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2019-03-04 07:01:10 +01:00
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def stdHtml(self, body, css=None, js=None, head=""):
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if css is None:
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css = []
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if js is None:
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js = ["jquery.js"]
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2019-04-10 07:16:06 +02:00
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palette = self.style().standardPalette()
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color_hl = palette.color(QPalette.Highlight).name()
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2016-07-08 08:17:06 +02:00
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if isWin:
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2019-12-23 01:34:10 +01:00
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# T: include a font for your language on Windows, eg: "Segoe UI", "MS Mincho"
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2019-03-06 06:28:49 +01:00
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family = _('"Segoe UI"')
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widgetspec = "button { font-size: 12px; font-family:%s; }" % family
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2019-04-10 07:16:06 +02:00
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widgetspec += "\n:focus { outline: 1px solid %s; }" % color_hl
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2019-12-23 01:34:10 +01:00
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fontspec = "font-size:12px;font-family:%s;" % family
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2016-07-08 08:17:06 +02:00
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elif isMac:
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2019-12-23 01:34:10 +01:00
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family = "Helvetica"
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fontspec = 'font-size:15px;font-family:"%s";' % family
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2018-08-30 22:07:06 +02:00
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widgetspec = """
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2016-07-26 02:34:16 +02:00
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button { font-size: 13px; -webkit-appearance: none; background: #fff; border: 1px solid #ccc;
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border-radius:5px; font-family: Helvetica }"""
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2016-07-08 08:17:06 +02:00
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else:
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family = self.font().family()
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2018-08-30 22:07:06 +02:00
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color_hl_txt = palette.color(QPalette.HighlightedText).name()
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color_btn = palette.color(QPalette.Button).name()
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2019-12-23 01:34:10 +01:00
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fontspec = 'font-size:14px;font-family:"%s";' % family
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2018-08-30 22:07:06 +02:00
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widgetspec = """
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/* Buttons */
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button{ font-size:14px; -webkit-appearance:none; outline:0;
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background-color: %(color_btn)s; border:1px solid rgba(0,0,0,.2);
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border-radius:2px; height:24px; font-family:"%(family)s"; }
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button:focus{ border-color: %(color_hl)s }
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button:hover{ background-color:#fff }
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button:active, button:active:hover { background-color: %(color_hl)s; color: %(color_hl_txt)s;}
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/* Input field focus outline */
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textarea:focus, input:focus, input[type]:focus, .uneditable-input:focus,
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div[contenteditable="true"]:focus {
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outline: 0 none;
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border-color: %(color_hl)s;
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2019-12-23 01:34:10 +01:00
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}""" % {
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"family": family,
|
|
|
|
"color_btn": color_btn,
|
|
|
|
"color_hl": color_hl,
|
|
|
|
"color_hl_txt": color_hl_txt,
|
|
|
|
}
|
|
|
|
|
|
|
|
csstxt = "\n".join(
|
|
|
|
[self.bundledCSS("webview.css")] + [self.bundledCSS(fname) for fname in css]
|
|
|
|
)
|
|
|
|
jstxt = "\n".join(
|
|
|
|
[self.bundledScript("webview.js")]
|
|
|
|
+ [self.bundledScript(fname) for fname in js]
|
|
|
|
)
|
2017-08-11 12:59:15 +02:00
|
|
|
from aqt import mw
|
2019-12-23 01:34:10 +01:00
|
|
|
|
|
|
|
head = mw.baseHTML() + head + csstxt + jstxt
|
2012-12-21 08:51:59 +01:00
|
|
|
|
2018-01-16 07:07:30 +01:00
|
|
|
html = """
|
2017-08-10 11:02:32 +02:00
|
|
|
<!doctype html>
|
|
|
|
<html><head>
|
2018-01-16 07:07:30 +01:00
|
|
|
<title>{}</title>
|
2017-08-10 11:02:32 +02:00
|
|
|
|
|
|
|
<style>
|
2019-02-25 11:44:27 +01:00
|
|
|
body {{ zoom: {}; background: {}; {} }}
|
2018-01-16 07:07:30 +01:00
|
|
|
{}
|
2017-08-10 11:02:32 +02:00
|
|
|
</style>
|
|
|
|
|
2018-01-16 07:07:30 +01:00
|
|
|
{}
|
2012-12-21 08:51:59 +01:00
|
|
|
</head>
|
2017-08-10 11:02:32 +02:00
|
|
|
|
2018-01-16 07:07:30 +01:00
|
|
|
<body>{}</body>
|
2019-12-23 01:34:10 +01:00
|
|
|
</html>""".format(
|
|
|
|
self.title,
|
|
|
|
self.zoomFactor(),
|
|
|
|
self._getWindowColor().name(),
|
|
|
|
fontspec,
|
|
|
|
widgetspec,
|
|
|
|
head,
|
|
|
|
body,
|
|
|
|
)
|
|
|
|
# print(html)
|
2017-06-22 10:01:01 +02:00
|
|
|
self.setHtml(html)
|
2012-12-21 08:51:59 +01:00
|
|
|
|
2017-07-28 08:19:06 +02:00
|
|
|
def webBundlePath(self, path):
|
|
|
|
from aqt import mw
|
2019-12-23 01:34:10 +01:00
|
|
|
|
2018-10-11 07:45:55 +02:00
|
|
|
return "http://127.0.0.1:%d/_anki/%s" % (mw.mediaServer.getPort(), path)
|
2017-07-28 08:19:06 +02:00
|
|
|
|
|
|
|
def bundledScript(self, fname):
|
|
|
|
return '<script src="%s"></script>' % self.webBundlePath(fname)
|
|
|
|
|
|
|
|
def bundledCSS(self, fname):
|
2019-12-23 01:34:10 +01:00
|
|
|
return '<link rel="stylesheet" type="text/css" href="%s">' % self.webBundlePath(
|
|
|
|
fname
|
|
|
|
)
|
2017-07-28 08:19:06 +02:00
|
|
|
|
2012-12-21 08:51:59 +01:00
|
|
|
def eval(self, js):
|
2017-08-02 07:39:49 +02:00
|
|
|
self.evalWithCallback(js, None)
|
2012-12-21 08:51:59 +01:00
|
|
|
|
2016-06-07 06:27:33 +02:00
|
|
|
def evalWithCallback(self, js, cb):
|
2017-08-07 08:01:35 +02:00
|
|
|
self._queueAction("eval", js, cb)
|
|
|
|
|
|
|
|
def _evalWithCallback(self, js, cb):
|
|
|
|
if cb:
|
2019-12-23 01:34:10 +01:00
|
|
|
|
2018-09-28 08:27:41 +02:00
|
|
|
def handler(val):
|
|
|
|
if self._shouldIgnoreWebEvent():
|
|
|
|
print("ignored late js callback", cb)
|
|
|
|
return
|
|
|
|
cb(val)
|
2019-12-23 01:34:10 +01:00
|
|
|
|
2018-09-28 08:27:41 +02:00
|
|
|
self.page().runJavaScript(js, handler)
|
2017-08-02 07:39:49 +02:00
|
|
|
else:
|
2017-08-07 08:01:35 +02:00
|
|
|
self.page().runJavaScript(js)
|
|
|
|
|
|
|
|
def _queueAction(self, name, *args):
|
|
|
|
self._pendingActions.append((name, args))
|
|
|
|
self._maybeRunActions()
|
|
|
|
|
|
|
|
def _maybeRunActions(self):
|
|
|
|
while self._pendingActions and self._domDone:
|
|
|
|
name, args = self._pendingActions.pop(0)
|
|
|
|
|
|
|
|
if name == "eval":
|
|
|
|
self._evalWithCallback(*args)
|
|
|
|
elif name == "setHtml":
|
|
|
|
self._setHtml(*args)
|
|
|
|
else:
|
|
|
|
raise Exception("unknown action: {}".format(name))
|
2016-06-07 06:27:33 +02:00
|
|
|
|
2012-12-21 08:51:59 +01:00
|
|
|
def _openLinksExternally(self, url):
|
|
|
|
openLink(url)
|
|
|
|
|
2018-09-28 08:27:41 +02:00
|
|
|
def _shouldIgnoreWebEvent(self):
|
|
|
|
# async web events may be received after the profile has been closed
|
|
|
|
# or the underlying webview has been deleted
|
|
|
|
from aqt import mw
|
2019-12-23 01:34:10 +01:00
|
|
|
|
2018-10-12 04:08:19 +02:00
|
|
|
if sip.isdeleted(self):
|
|
|
|
return True
|
|
|
|
if not mw.col and self.requiresCol:
|
|
|
|
return True
|
|
|
|
return False
|
2018-09-28 08:27:41 +02:00
|
|
|
|
2016-06-06 07:50:03 +02:00
|
|
|
def _onBridgeCmd(self, cmd):
|
2018-09-28 08:27:41 +02:00
|
|
|
if self._shouldIgnoreWebEvent():
|
|
|
|
print("ignored late bridge cmd", cmd)
|
2017-08-07 05:12:47 +02:00
|
|
|
return
|
|
|
|
|
2019-04-21 11:12:04 +02:00
|
|
|
if not self._filterSet:
|
|
|
|
self.focusProxy().installEventFilter(self)
|
|
|
|
self._filterSet = True
|
|
|
|
|
2016-06-06 07:50:03 +02:00
|
|
|
if cmd == "domDone":
|
2017-08-01 06:30:04 +02:00
|
|
|
self._domDone = True
|
2017-08-07 08:01:35 +02:00
|
|
|
self._maybeRunActions()
|
2016-06-06 07:50:03 +02:00
|
|
|
else:
|
2018-03-08 08:48:14 +01:00
|
|
|
return self.onBridgeCmd(cmd)
|
2016-05-31 10:51:40 +02:00
|
|
|
|
2016-06-06 07:50:03 +02:00
|
|
|
def defaultOnBridgeCmd(self, cmd):
|
|
|
|
print("unhandled bridge cmd:", cmd)
|
2016-05-31 10:51:40 +02:00
|
|
|
|
|
|
|
def resetHandlers(self):
|
2016-06-06 07:50:03 +02:00
|
|
|
self.onBridgeCmd = self.defaultOnBridgeCmd
|
2017-08-02 08:22:54 +02:00
|
|
|
|
|
|
|
def adjustHeightToFit(self):
|
2018-10-29 12:08:16 +01:00
|
|
|
self.evalWithCallback("$(document.body).height()", self._onHeight)
|
2017-08-02 08:22:54 +02:00
|
|
|
|
|
|
|
def _onHeight(self, qvar):
|
2019-12-24 11:15:47 +01:00
|
|
|
from aqt import mw
|
2019-12-24 11:23:36 +01:00
|
|
|
|
2018-06-29 09:17:13 +02:00
|
|
|
if qvar is None:
|
2019-12-23 01:34:10 +01:00
|
|
|
|
2019-06-27 01:49:05 +02:00
|
|
|
mw.progress.timer(1000, mw.reset, False)
|
2018-06-29 09:17:13 +02:00
|
|
|
return
|
|
|
|
|
2019-12-24 11:15:47 +01:00
|
|
|
scaleFactor = self.zoomFactor()
|
|
|
|
if scaleFactor == 1:
|
|
|
|
scaleFactor = mw.pm.uiScale()
|
|
|
|
|
|
|
|
height = math.ceil(qvar * scaleFactor)
|
2017-08-02 08:22:54 +02:00
|
|
|
self.setFixedHeight(height)
|