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anki/aqt/editor.py

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# -*- coding: utf-8 -*-
# Copyright: Ankitects Pty Ltd and contributors
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
import re
import os
import urllib.request, urllib.error, urllib.parse
import ctypes
import urllib.request, urllib.parse, urllib.error
import warnings
import html
import mimetypes
import base64
import unicodedata
from anki.lang import _
from aqt.qt import *
from anki.utils import stripHTML, isWin, isMac, namedtmp, json, stripHTMLMedia, \
checksum
import anki.sound
from anki.hooks import runHook, runFilter, addHook
from aqt.sound import getAudio
from aqt.webview import AnkiWebView
from aqt.utils import shortcut, showInfo, showWarning, getFile, \
openHelp, tooltip, downArrow, qtMenuShortcutWorkaround
import aqt
from bs4 import BeautifulSoup
import requests
from anki.sync import AnkiRequestsClient
pics = ("jpg", "jpeg", "png", "tif", "tiff", "gif", "svg", "webp")
audio = ("wav", "mp3", "ogg", "flac", "mp4", "swf", "mov", "mpeg", "mkv", "m4a", "3gp", "spx", "oga", "webm")
_html = """
<style>
html { background: %s; }
#topbutsOuter { background: %s; }
</style>
<div id="topbutsOuter"><div id="topbuts" class="clearfix">%s</div></div>
<div id="fields"></div>
<div id="dupes" style="display:none;"><a href="#" onclick="pycmd('dupes');return false;">%s</a></div>
"""
# caller is responsible for resetting note on reset
class Editor:
def __init__(self, mw, widget, parentWindow, addMode=False):
self.mw = mw
self.widget = widget
self.parentWindow = parentWindow
self.note = None
self.addMode = addMode
self.currentField = None
# current card, for card layout
self.card = None
self.setupOuter()
self.setupWeb()
self.setupShortcuts()
self.setupTags()
# Initial setup
############################################################
def setupOuter(self):
l = QVBoxLayout()
l.setContentsMargins(0,0,0,0)
l.setSpacing(0)
self.widget.setLayout(l)
self.outerLayout = l
def setupWeb(self):
self.web = EditorWebView(self.widget, self)
self.web.title = "editor"
self.web.allowDrops = True
self.web.onBridgeCmd = self.onBridgeCmd
self.outerLayout.addWidget(self.web, 1)
righttopbtns = list()
righttopbtns.append(self._addButton('text_bold', 'bold', _("Bold text (Ctrl+B)"), id='bold'))
righttopbtns.append(self._addButton('text_italic', 'italic', _("Italic text (Ctrl+I)"), id='italic'))
righttopbtns.append(self._addButton('text_under', 'underline', _("Underline text (Ctrl+U)"), id='underline'))
righttopbtns.append(self._addButton('text_super', 'super', _("Superscript (Ctrl++)"), id='superscript'))
righttopbtns.append(self._addButton('text_sub', 'sub', _("Subscript (Ctrl+=)"), id='subscript'))
righttopbtns.append(self._addButton('text_clear', 'clear', _("Remove formatting (Ctrl+R)")))
# The color selection buttons do not use an icon so the HTML must be specified manually
tip = _("Set foreground colour (F7)")
righttopbtns.append('''<button tabindex=-1 class=linkb title="{}"
type="button" onclick="pycmd('colour');return false;">
<div id=forecolor style="display:inline-block; background: #000;border-radius: 5px;"
class=topbut></div></button>'''.format(tip))
tip = _("Change colour (F8)")
righttopbtns.append('''<button tabindex=-1 class=linkb title="{}"
type="button" onclick="pycmd('changeCol');return false;">
<div style="display:inline-block; border-radius: 5px;"
class="topbut rainbow"></div></button>'''.format(tip))
righttopbtns.append(self._addButton('text_cloze', 'cloze', _("Cloze deletion (Ctrl+Shift+C)")))
righttopbtns.append(self._addButton('paperclip', 'attach', _("Attach pictures/audio/video (F3)")))
righttopbtns.append(self._addButton('media-record', 'record', _("Record audio (F5)")))
righttopbtns.append(self._addButton('more', 'more'))
righttopbtns = runFilter("setupEditorButtons", righttopbtns, self)
topbuts = """
<div id="topbutsleft" style="float:left;">
<button title='%(fldsTitle)s' onclick="pycmd('fields')">%(flds)s...</button>
<button title='%(cardsTitle)s' onclick="pycmd('cards')">%(cards)s...</button>
</div>
<div id="topbutsright" style="float:right;">
%(rightbts)s
</div>
""" % dict(flds=_("Fields"), cards=_("Cards"), rightbts="".join(righttopbtns),
fldsTitle=_("Customize Fields"),
cardsTitle=shortcut(_("Customize Card Templates (Ctrl+L)")))
bgcol = self.mw.app.palette().window().color().name()
# then load page
self.web.stdHtml(_html % (
bgcol, bgcol,
topbuts,
_("Show Duplicates")),
css=["editor.css"],
js=["jquery.js", "editor.js"])
# Top buttons
######################################################################
def resourceToData(self, path):
"""Convert a file (specified by a path) into a data URI."""
if not os.path.exists(path):
raise FileNotFoundError
mime, _ = mimetypes.guess_type(path)
with open(path, 'rb') as fp:
data = fp.read()
data64 = b''.join(base64.encodestring(data).splitlines())
return 'data:%s;base64,%s' % (mime, data64.decode('ascii'))
def addButton(self, icon, cmd, func, tip="", label="",
id=None, toggleable=False, keys=None, disables=True):
"""Assign func to bridge cmd, register shortcut, return button"""
if cmd not in self._links:
self._links[cmd] = func
if keys:
QShortcut(QKeySequence(keys), self.widget,
activated = lambda s=self: func(s))
btn = self._addButton(icon, cmd, tip=tip, label=label,
id=id, toggleable=toggleable, disables=disables)
return btn
def _addButton(self, icon, cmd, tip="", label="", id=None, toggleable=False,
disables=True):
if icon:
if icon.startswith("qrc:/"):
iconstr = icon
elif os.path.isabs(icon):
iconstr = self.resourceToData(icon)
else:
iconstr = "/_anki/imgs/{}.png".format(icon)
imgelm = '''<img class=topbut src="{}">'''.format(iconstr)
else:
imgelm = ""
if label or not imgelm:
labelelm = '''<span class=blabel>{}</span>'''.format(label or cmd)
else:
labelelm = ""
if id:
idstr = 'id={}'.format(id)
else:
idstr = ""
if toggleable:
toggleScript = 'toggleEditorButton(this);'
else:
toggleScript = ''
tip = shortcut(tip)
theclass = "linkb"
if not disables:
theclass += " perm"
return ('''<button tabindex=-1 {id} class="{theclass}" type="button" title="{tip}"'''
''' onclick="pycmd('{cmd}');{togglesc}return false;">'''
'''{imgelm}{labelelm}</button>'''.format(
imgelm=imgelm, cmd=cmd, tip=tip, labelelm=labelelm, id=idstr,
togglesc=toggleScript, theclass=theclass)
)
def setupShortcuts(self):
# if a third element is provided, enable shortcut even when no field selected
cuts = [
("Ctrl+L", self.onCardLayout, True),
("Ctrl+B", self.toggleBold),
("Ctrl+I", self.toggleItalic),
("Ctrl+U", self.toggleUnderline),
("Ctrl++", self.toggleSuper),
("Ctrl+=", self.toggleSub),
("Ctrl+R", self.removeFormat),
("F7", self.onForeground),
("F8", self.onChangeCol),
("Ctrl+Shift+C", self.onCloze),
("Ctrl+Shift+Alt+C", self.onCloze),
("F3", self.onAddMedia),
("F5", self.onRecSound),
("Ctrl+T, T", self.insertLatex),
("Ctrl+T, E", self.insertLatexEqn),
("Ctrl+T, M", self.insertLatexMathEnv),
("Ctrl+M, M", self.insertMathjaxInline),
("Ctrl+M, E", self.insertMathjaxBlock),
("Ctrl+M, C", self.insertMathjaxChemistry),
("Ctrl+Shift+X", self.onHtmlEdit),
("Ctrl+Shift+T", self.onFocusTags, True)
]
runHook("setupEditorShortcuts", cuts, self)
for row in cuts:
if len(row) == 2:
keys, fn = row
fn = self._addFocusCheck(fn)
else:
keys, fn, _ = row
QShortcut(QKeySequence(keys), self.widget, activated=fn)
def _addFocusCheck(self, fn):
def checkFocus():
if self.currentField is None:
return
fn()
return checkFocus
def onFields(self):
self.saveNow(self._onFields)
def _onFields(self):
from aqt.fields import FieldDialog
FieldDialog(self.mw, self.note, parent=self.parentWindow)
def onCardLayout(self):
self.saveNow(self._onCardLayout)
def _onCardLayout(self):
from aqt.clayout import CardLayout
if self.card:
ord = self.card.ord
else:
ord = 0
CardLayout(self.mw, self.note, ord=ord, parent=self.parentWindow,
addMode=self.addMode)
if isWin:
self.parentWindow.activateWindow()
# JS->Python bridge
######################################################################
def onBridgeCmd(self, cmd):
if not self.note or not runHook:
# shutdown
return
# focus lost or key/button pressed?
if cmd.startswith("blur") or cmd.startswith("key"):
(type, ord, nid, txt) = cmd.split(":", 3)
ord = int(ord)
nid = int(nid)
if nid != self.note.id:
print("ignored late blur")
return
txt = urllib.parse.unquote(txt)
txt = unicodedata.normalize("NFC", txt)
txt = self.mungeHTML(txt)
# misbehaving apps may include a null byte in the text
txt = txt.replace("\x00", "")
# reverse the url quoting we added to get images to display
txt = self.mw.col.media.escapeImages(txt, unescape=True)
self.note.fields[ord] = txt
if not self.addMode:
self.note.flush()
self.mw.requireReset()
if type == "blur":
self.currentField = None
# run any filters
if runFilter(
"editFocusLost", False, self.note, ord):
# something updated the note; update it after a subsequent focus
# event has had time to fire
self.mw.progress.timer(100, self.loadNoteKeepingFocus, False)
else:
self.checkValid()
else:
runHook("editTimer", self.note)
self.checkValid()
# focused into field?
elif cmd.startswith("focus"):
(type, num) = cmd.split(":", 1)
self.currentField = int(num)
runHook("editFocusGained", self.note, self.currentField)
elif cmd in self._links:
self._links[cmd](self)
else:
print("uncaught cmd", cmd)
def mungeHTML(self, txt):
if txt in ('<br>', '<div><br></div>'):
return ''
return txt
# Setting/unsetting the current note
######################################################################
def setNote(self, note, hide=True, focusTo=None):
"Make NOTE the current note."
self.note = note
self.currentField = None
if self.note:
self.loadNote(focusTo=focusTo)
else:
self.hideCompleters()
if hide:
self.widget.hide()
def loadNoteKeepingFocus(self):
self.loadNote(self.currentField)
def loadNote(self, focusTo=None):
if not self.note:
return
data = []
for fld, val in list(self.note.items()):
data.append((fld, self.mw.col.media.escapeImages(val)))
self.widget.show()
self.updateTags()
def oncallback(arg):
if not self.note:
return
self.setupForegroundButton()
self.checkValid()
if focusTo is not None:
self.web.setFocus()
runHook("loadNote", self)
self.web.evalWithCallback("setFields(%s); setFonts(%s); focusField(%s); setNoteId(%s)" % (
json.dumps(data),
json.dumps(self.fonts()), json.dumps(focusTo),
json.dumps(self.note.id)),
oncallback)
def fonts(self):
return [(runFilter("mungeEditingFontName", f['font']),
f['size'], f['rtl'])
for f in self.note.model()['flds']]
def saveNow(self, callback, keepFocus=False):
"Save unsaved edits then call callback()."
if not self.note:
# calling code may not expect the callback to fire immediately
self.mw.progress.timer(10, callback, False)
return
self.saveTags()
self.web.evalWithCallback("saveNow(%d)" % keepFocus, lambda res: callback())
def checkValid(self):
cols = []
err = None
for f in self.note.fields:
cols.append("#fff")
err = self.note.dupeOrEmpty()
if err == 2:
cols[0] = "#fcc"
self.web.eval("showDupes();")
else:
self.web.eval("hideDupes();")
self.web.eval("setBackgrounds(%s);" % json.dumps(cols))
def showDupes(self):
contents = stripHTMLMedia(self.note.fields[0])
browser = aqt.dialogs.open("Browser", self.mw)
browser.form.searchEdit.lineEdit().setText(
'"dupe:%s,%s"' % (self.note.model()['id'],
contents))
browser.onSearchActivated()
def fieldsAreBlank(self):
if not self.note:
return True
m = self.note.model()
for c, f in enumerate(self.note.fields):
if f and not m['flds'][c]['sticky']:
return False
return True
def cleanup(self):
self.setNote(None)
# prevent any remaining evalWithCallback() events from firing after C++ object deleted
self.web = None
# HTML editing
######################################################################
def onHtmlEdit(self):
field = self.currentField
self.saveNow(lambda: self._onHtmlEdit(field))
def _onHtmlEdit(self, field):
d = QDialog(self.widget)
form = aqt.forms.edithtml.Ui_Dialog()
form.setupUi(d)
form.buttonBox.helpRequested.connect(lambda: openHelp("editor"))
form.textEdit.setPlainText(self.note.fields[field])
form.textEdit.moveCursor(QTextCursor.End)
d.exec_()
html = form.textEdit.toPlainText()
# filter html through beautifulsoup so we can strip out things like a
# leading </div>
with warnings.catch_warnings() as w:
warnings.simplefilter('ignore', UserWarning)
html = str(BeautifulSoup(html, "html.parser"))
self.note.fields[field] = html
self.note.flush()
self.loadNote(focusTo=field)
# Tag handling
######################################################################
def setupTags(self):
import aqt.tagedit
g = QGroupBox(self.widget)
g.setFlat(True)
tb = QGridLayout()
tb.setSpacing(12)
tb.setContentsMargins(6,6,6,6)
# tags
l = QLabel(_("Tags"))
tb.addWidget(l, 1, 0)
self.tags = aqt.tagedit.TagEdit(self.widget)
self.tags.lostFocus.connect(self.saveTags)
self.tags.setToolTip(shortcut(_("Jump to tags with Ctrl+Shift+T")))
tb.addWidget(self.tags, 1, 1)
g.setLayout(tb)
self.outerLayout.addWidget(g)
def updateTags(self):
if self.tags.col != self.mw.col:
self.tags.setCol(self.mw.col)
if not self.tags.text() or not self.addMode:
self.tags.setText(self.note.stringTags().strip())
def saveTags(self):
if not self.note:
return
tagsTxt = unicodedata.normalize("NFC", self.tags.text())
self.note.tags = self.mw.col.tags.canonify(
self.mw.col.tags.split(tagsTxt))
self.tags.setText(self.mw.col.tags.join(self.note.tags).strip())
if not self.addMode:
self.note.flush()
runHook("tagsUpdated", self.note)
def saveAddModeVars(self):
if self.addMode:
# save tags to model
m = self.note.model()
m['tags'] = self.note.tags
self.mw.col.models.save(m)
def hideCompleters(self):
self.tags.hideCompleter()
def onFocusTags(self):
self.tags.setFocus()
# Format buttons
######################################################################
def toggleBold(self):
self.web.eval("setFormat('bold');")
def toggleItalic(self):
self.web.eval("setFormat('italic');")
def toggleUnderline(self):
self.web.eval("setFormat('underline');")
def toggleSuper(self):
self.web.eval("setFormat('superscript');")
def toggleSub(self):
self.web.eval("setFormat('subscript');")
def removeFormat(self):
self.web.eval("setFormat('removeFormat');")
def onCloze(self):
self.saveNow(self._onCloze, keepFocus=True)
def _onCloze(self):
# check that the model is set up for cloze deletion
if not re.search('{{(.*:)*cloze:',self.note.model()['tmpls'][0]['qfmt']):
if self.addMode:
tooltip(_("Warning, cloze deletions will not work until "
"you switch the type at the top to Cloze."))
else:
showInfo(_("""\
To make a cloze deletion on an existing note, you need to change it \
to a cloze type first, via Edit>Change Note Type."""))
return
# find the highest existing cloze
highest = 0
for name, val in list(self.note.items()):
m = re.findall(r"\{\{c(\d+)::", val)
if m:
highest = max(highest, sorted([int(x) for x in m])[-1])
# reuse last?
if not self.mw.app.keyboardModifiers() & Qt.AltModifier:
highest += 1
# must start at 1
highest = max(1, highest)
self.web.eval("wrap('{{c%d::', '}}');" % highest)
# Foreground colour
######################################################################
def setupForegroundButton(self):
self.fcolour = self.mw.pm.profile.get("lastColour", "#00f")
self.onColourChanged()
# use last colour
def onForeground(self):
self._wrapWithColour(self.fcolour)
# choose new colour
def onChangeCol(self):
new = QColorDialog.getColor(QColor(self.fcolour), None)
# native dialog doesn't refocus us for some reason
self.parentWindow.activateWindow()
if new.isValid():
self.fcolour = new.name()
self.onColourChanged()
self._wrapWithColour(self.fcolour)
def _updateForegroundButton(self):
self.web.eval("setFGButton('%s')" % self.fcolour)
def onColourChanged(self):
self._updateForegroundButton()
self.mw.pm.profile['lastColour'] = self.fcolour
def _wrapWithColour(self, colour):
self.web.eval("setFormat('forecolor', '%s')" % colour)
# Audio/video/images
######################################################################
def onAddMedia(self):
key = (_("Media") +
" (*.jpg *.png *.gif *.tiff *.svg *.tif *.jpeg "+
"*.mp3 *.ogg *.wav *.avi *.ogv *.mpg *.mpeg *.mov *.mp4 " +
"*.mkv *.ogx *.ogv *.oga *.flv *.swf *.flac *.webp *.m4a)")
def accept(file):
self.addMedia(file, canDelete=True)
file = getFile(self.widget, _("Add Media"), accept, key, key="media")
self.parentWindow.activateWindow()
def addMedia(self, path, canDelete=False):
html = self._addMedia(path, canDelete)
self.web.eval("setFormat('inserthtml', %s);" % json.dumps(html))
def _addMedia(self, path, canDelete=False):
"Add to media folder and return local img or sound tag."
# copy to media folder
fname = self.mw.col.media.addFile(path)
# remove original?
if canDelete and self.mw.pm.profile['deleteMedia']:
if os.path.abspath(fname) != os.path.abspath(path):
try:
os.unlink(path)
except:
pass
# return a local html link
return self.fnameToLink(fname)
def _addMediaFromData(self, fname, data):
return self.mw.col.media.writeData(fname, data)
def onRecSound(self):
try:
file = getAudio(self.widget)
except Exception as e:
showWarning(_(
"Couldn't record audio. Have you installed 'lame'?") +
"\n\n" + repr(str(e)))
return
if file:
self.addMedia(file)
# Media downloads
######################################################################
def urlToLink(self, url):
fname = self.urlToFile(url)
if not fname:
return None
return self.fnameToLink(fname)
def fnameToLink(self, fname):
ext = fname.split(".")[-1].lower()
if ext in pics:
name = urllib.parse.quote(fname.encode("utf8"))
return '<img src="%s">' % name
else:
anki.sound.clearAudioQueue()
anki.sound.play(fname)
return '[sound:%s]' % fname
def urlToFile(self, url):
l = url.lower()
for suffix in pics+audio:
if l.endswith("." + suffix):
return self._retrieveURL(url)
# not a supported type
return
def isURL(self, s):
s = s.lower()
return (s.startswith("http://")
or s.startswith("https://")
or s.startswith("ftp://")
or s.startswith("file://"))
def inlinedImageToFilename(self, txt):
prefix = "data:image/"
suffix = ";base64,"
for ext in ("jpg", "jpeg", "png", "gif"):
fullPrefix = prefix + ext + suffix
if txt.startswith(fullPrefix):
b64data = txt[len(fullPrefix):].strip()
data = base64.b64decode(b64data, validate=True)
if ext == "jpeg":
ext = "jpg"
return self._addPastedImage(data, "."+ext)
return ""
def inlinedImageToLink(self, src):
fname = self.inlinedImageToFilename(src)
if fname:
return self.fnameToLink(fname)
return ""
# ext should include dot
def _addPastedImage(self, data, ext):
# hash and write
csum = checksum(data)
fname = "{}-{}{}".format("paste", csum, ext)
return self._addMediaFromData(fname, data)
def _retrieveURL(self, url):
"Download file into media folder and return local filename or None."
# urllib doesn't understand percent-escaped utf8, but requires things like
# '#' to be escaped.
url = urllib.parse.unquote(url)
if url.lower().startswith("file://"):
url = url.replace("%", "%25")
url = url.replace("#", "%23")
local = True
else:
local = False
# fetch it into a temporary folder
self.mw.progress.start(
immediate=not local, parent=self.parentWindow)
ct = None
try:
if local:
req = urllib.request.Request(url, None, {
'User-Agent': 'Mozilla/5.0 (compatible; Anki)'})
filecontents = urllib.request.urlopen(req).read()
else:
reqs = AnkiRequestsClient()
reqs.timeout = 30
r = reqs.get(url)
if r.status_code != 200:
showWarning(_("Unexpected response code: %s") % r.status_code)
return
filecontents = r.content
ct = r.headers.get("content-type")
except urllib.error.URLError as e:
showWarning(_("An error occurred while opening %s") % e)
return
except requests.exceptions.RequestException as e:
showWarning(_("An error occurred while opening %s") % e)
return
finally:
self.mw.progress.finish()
# strip off any query string
url = re.sub(r"\?.*?$", "", url)
path = urllib.parse.unquote(url)
return self.mw.col.media.writeData(path, filecontents, typeHint=ct)
# Paste/drag&drop
######################################################################
removeTags = ["script", "iframe", "object", "style"]
def _pastePreFilter(self, html, internal):
with warnings.catch_warnings() as w:
warnings.simplefilter('ignore', UserWarning)
doc = BeautifulSoup(html, "html.parser")
if not internal:
for tag in self.removeTags:
for node in doc(tag):
node.decompose()
# convert p tags to divs
for node in doc("p"):
node.name = "div"
for tag in doc("img"):
try:
src = tag['src']
except KeyError:
# for some bizarre reason, mnemosyne removes src elements
# from missing media
continue
# in internal pastes, rewrite mediasrv references to relative
if internal:
m = re.match(r"http://127.0.0.1:\d+/(.*)$", src)
if m:
tag['src'] = m.group(1)
else:
# in external pastes, download remote media
if self.isURL(src):
fname = self._retrieveURL(src)
if fname:
tag['src'] = fname
elif src.startswith("data:image/"):
# and convert inlined data
tag['src'] = self.inlinedImageToFilename(src)
html = str(doc)
return html
def doPaste(self, html, internal, extended=False):
html = self._pastePreFilter(html, internal)
if extended:
extended = "true"
else:
extended = "false"
self.web.eval("pasteHTML(%s, %s, %s);" % (
json.dumps(html), json.dumps(internal), extended))
def doDrop(self, html, internal):
self.web.evalWithCallback("makeDropTargetCurrent();",
lambda _: self.doPaste(html, internal))
def onPaste(self):
self.web.onPaste()
def onCutOrCopy(self):
self.web.flagAnkiText()
# Advanced menu
######################################################################
def onAdvanced(self):
m = QMenu(self.mw)
a = m.addAction(_("MathJax inline"))
a.triggered.connect(self.insertMathjaxInline)
a.setShortcut(QKeySequence("Ctrl+M, M"))
a = m.addAction(_("MathJax block"))
a.triggered.connect(self.insertMathjaxBlock)
a.setShortcut(QKeySequence("Ctrl+M, E"))
a = m.addAction(_("MathJax chemistry"))
a.triggered.connect(self.insertMathjaxChemistry)
a.setShortcut(QKeySequence("Ctrl+M, C"))
a = m.addAction(_("LaTeX"))
a.triggered.connect(self.insertLatex)
a.setShortcut(QKeySequence("Ctrl+T, T"))
a = m.addAction(_("LaTeX equation"))
a.triggered.connect(self.insertLatexEqn)
a.setShortcut(QKeySequence("Ctrl+T, E"))
a = m.addAction(_("LaTeX math env."))
a.triggered.connect(self.insertLatexMathEnv)
a.setShortcut(QKeySequence("Ctrl+T, M"))
a = m.addAction(_("Edit HTML"))
a.triggered.connect(self.onHtmlEdit)
a.setShortcut(QKeySequence("Ctrl+Shift+X"))
qtMenuShortcutWorkaround(m)
m.exec_(QCursor.pos())
# LaTeX
######################################################################
def insertLatex(self):
self.web.eval("wrap('[latex]', '[/latex]');")
def insertLatexEqn(self):
self.web.eval("wrap('[$]', '[/$]');")
def insertLatexMathEnv(self):
self.web.eval("wrap('[$$]', '[/$$]');")
def insertMathjaxInline(self):
self.web.eval("wrap('\\\\(', '\\\\)');")
def insertMathjaxBlock(self):
self.web.eval("wrap('\\\\[', '\\\\]');")
def insertMathjaxChemistry(self):
self.web.eval("wrap('\\\\(\\\\ce{', '}\\\\)');")
# Links from HTML
######################################################################
_links = dict(
fields=onFields,
cards=onCardLayout,
bold=toggleBold,
italic=toggleItalic,
underline=toggleUnderline,
super=toggleSuper,
sub=toggleSub,
clear=removeFormat,
colour=onForeground,
changeCol=onChangeCol,
cloze=onCloze,
attach=onAddMedia,
record=onRecSound,
more=onAdvanced,
dupes=showDupes,
paste=onPaste,
cutOrCopy=onCutOrCopy,
)
# Pasting, drag & drop, and keyboard layouts
######################################################################
class EditorWebView(AnkiWebView):
def __init__(self, parent, editor):
AnkiWebView.__init__(self)
self.editor = editor
self.strip = self.editor.mw.pm.profile['stripHTML']
self.setAcceptDrops(True)
self._markInternal = False
clip = self.editor.mw.app.clipboard()
clip.dataChanged.connect(self._onClipboardChange)
def _onClipboardChange(self):
if self._markInternal:
self._markInternal = False
self._flagAnkiText()
def onCut(self):
self.triggerPageAction(QWebEnginePage.Cut)
def onCopy(self):
self.triggerPageAction(QWebEnginePage.Copy)
def _onPaste(self, mode):
extended = self.editor.mw.app.queryKeyboardModifiers() & Qt.ShiftModifier
mime = self.editor.mw.app.clipboard().mimeData(mode=mode)
html, internal = self._processMime(mime)
if not html:
return
self.editor.doPaste(html, internal, extended)
def onPaste(self):
self._onPaste(QClipboard.Clipboard)
def onMiddleClickPaste(self):
self._onPaste(QClipboard.Selection)
def dropEvent(self, evt):
mime = evt.mimeData()
if evt.source() and mime.hasHtml():
# don't filter html from other fields
html, internal = mime.html(), True
else:
html, internal = self._processMime(mime)
if not html:
return
self.editor.doDrop(html, internal)
# returns (html, isInternal)
def _processMime(self, mime):
# print("html=%s image=%s urls=%s txt=%s" % (
# mime.hasHtml(), mime.hasImage(), mime.hasUrls(), mime.hasText()))
# print("html", mime.html())
# print("urls", mime.urls())
# print("text", mime.text())
# try various content types in turn
html, internal = self._processHtml(mime)
if html:
return html, internal
# favour url if it's a local link
if mime.hasUrls() and mime.urls()[0].toString().startswith("file://"):
types = (self._processUrls, self._processImage, self._processText)
else:
types = (self._processImage, self._processUrls, self._processText)
for fn in types:
html = fn(mime)
if html:
return html, False
return "", False
def _processUrls(self, mime):
if not mime.hasUrls():
return
url = mime.urls()[0].toString()
# chrome likes to give us the URL twice with a \n
url = url.splitlines()[0]
return self.editor.urlToLink(url)
def _processText(self, mime):
if not mime.hasText():
return
txt = mime.text()
# inlined data in base64?
if txt.startswith("data:image/"):
return self.editor.inlinedImageToLink(txt)
# if the user is pasting an image or sound link, convert it to local
if self.editor.isURL(txt):
url = txt.split("\r\n")[0]
link = self.editor.urlToLink(url)
if link:
return link
# not media; add it as a normal link if pasting with shift
link = '<a href="{}">{}</a>'.format(
url, html.escape(txt)
)
return link
# normal text; convert it to HTML
txt = html.escape(txt)
txt = txt.replace("\n", "<br>")\
.replace("\t", " "*4)
# if there's more than one consecutive space,
# use non-breaking spaces for the second one on
def repl(match):
return " " + match.group(1).replace(" ", "&nbsp;")
txt = re.sub(" ( +)", repl, txt)
return txt
def _processHtml(self, mime):
if not mime.hasHtml():
return None, False
html = mime.html()
# no filtering required for internal pastes
if html.startswith("<!--anki-->"):
return html[11:], True
return html, False
def _processImage(self, mime):
if not mime.hasImage():
return
im = QImage(mime.imageData())
uname = namedtmp("paste")
if self.editor.mw.pm.profile.get("pastePNG", False):
ext = ".png"
im.save(uname+ext, None, 50)
else:
ext = ".jpg"
im.save(uname+ext, None, 80)
# invalid image?
path = uname+ext
if not os.path.exists(path):
return
data = open(path, "rb").read()
fname = self.editor._addPastedImage(data, ext)
if fname:
return self.editor.fnameToLink(fname)
def flagAnkiText(self):
# be ready to adjust when clipboard event fires
self._markInternal = True
def _flagAnkiText(self):
# add a comment in the clipboard html so we can tell text is copied
# from us and doesn't need to be stripped
clip = self.editor.mw.app.clipboard()
if not clip.ownsClipboard():
return
mime = clip.mimeData()
if not mime.hasHtml():
return
html = mime.html()
mime.setHtml("<!--anki-->" + html)
clip.setMimeData(mime)
def contextMenuEvent(self, evt):
m = QMenu(self)
a = m.addAction(_("Cut"))
a.triggered.connect(self.onCut)
a = m.addAction(_("Copy"))
a.triggered.connect(self.onCopy)
a = m.addAction(_("Paste"))
a.triggered.connect(self.onPaste)
runHook("EditorWebView.contextMenuEvent", self, m)
m.popup(QCursor.pos())
# QFont returns "Kozuka Gothic Pro L" but WebEngine expects "Kozuka Gothic Pro Light"
# - there may be other cases like a trailing 'Bold' that need fixing, but will
# wait for further reports first.
def fontMungeHack(font):
return re.sub(" L$", " Light", font)
addHook("mungeEditingFontName", fontMungeHack)
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