Anki/aqt/editor.py
2012-05-06 12:45:25 +09:00

1130 lines
37 KiB
Python

# -*- coding: utf-8 -*-
# Copyright: Damien Elmes <anki@ichi2.net>
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
from aqt.qt import *
import re, os, sys, urllib2, ctypes, traceback, urllib2
from anki.utils import stripHTML, isWin, isMac, namedtmp, json
from anki.sound import play
from anki.hooks import runHook, runFilter
from aqt.sound import getAudio
from aqt.webview import AnkiWebView
from aqt.utils import shortcut, showInfo, showWarning, getBase, getFile, \
openHelp, fontForPlatform
import aqt
import anki.js
from BeautifulSoup import BeautifulSoup
# fixme: when tab order returns to the webview, the previously focused field
# is focused, which is not good when the user is tabbing through the dialog
# fixme: set rtl in div css
# fixme: commit from tag area causes error
pics = ("jpg", "jpeg", "png", "tif", "tiff", "gif")
audio = ("wav", "mp3", "ogg", "flac")
_html = """
<html><head>%s<style>
.field {
border: 1px solid #aaa; background:#fff; color:#000; padding: 5px;
}
/* prevent floated images from being displayed outside field */
.field:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
.fname { font-size: 10px; vertical-align: middle; padding: 0;
font-family: "%s"; }
#dupes { font-size: 12px; }
img { max-width: 90%%; }
body { margin: 5px; }
</style><script>
%s
var currentField = null;
var changeTimer = null;
var insertHTMLOK = %s;
var savedSel = null;
var dropTarget = null;
String.prototype.format = function() {
var args = arguments;
return this.replace(/\{\d+\}/g, function(m){
return args[m.match(/\d+/)]; });
};
function onKey() {
// esc clears focus, allowing dialog to close
if (window.event.which == 27) {
currentField.blur();
return;
}
clearChangeTimer();
if (currentField.innerHTML == "<div><br></div>") {
// fix empty div bug. slight flicker, but must be done in a timer
changeTimer = setTimeout(function () {
currentField.innerHTML = "<br>";
sendState();
saveField("key"); }, 1);
} else {
changeTimer = setTimeout(function () {
sendState();
saveField("key"); }, 600);
}
};
function sendState() {
var r = {
'bold': document.queryCommandState("bold"),
'italic': document.queryCommandState("italic"),
'under': document.queryCommandState("underline"),
'super': document.queryCommandState("superscript"),
'sub': document.queryCommandState("subscript"),
'col': document.queryCommandValue("forecolor")
};
py.run("state:" + JSON.stringify(r));
};
function setFormat(cmd, arg, nosave) {
document.execCommand(cmd, false, arg);
if (!nosave) {
saveField('key');
}
};
function clearChangeTimer() {
if (changeTimer) {
clearTimeout(changeTimer);
changeTimer = null;
}
};
function onFocus(elem) {
currentField = elem;
py.run("focus:" + currentField.id.substring(1));
// don't adjust cursor on mouse clicks
if (mouseDown) { return; }
// do this twice so that there's no flicker on newer versions
caretToEnd();
// need to do this in a timeout for older qt versions
setTimeout(function () { caretToEnd() }, 1);
// scroll if bottom of element off the screen
function pos(obj) {
var cur = 0;
do {
cur += obj.offsetTop;
} while (obj = obj.offsetParent);
return cur;
}
var y = pos(elem);
if ((window.pageYOffset+window.innerHeight) < (y+elem.offsetHeight) ||
window.pageYOffset > y) {
window.scroll(0,y+elem.offsetHeight-window.innerHeight);
}
}
function focusField(n) {
$("#f"+n).focus();
}
function onDragOver(elem) {
// if we focus the target element immediately, the drag&drop turns into a
// copy, so note it down for later instead
dropTarget = elem;
}
function caretToEnd() {
var r = document.createRange()
r.selectNodeContents(currentField);
r.collapse(false);
var s = document.getSelection();
s.removeAllRanges();
s.addRange(r);
};
function onBlur() {
if (currentField) {
saveField("blur");
}
clearChangeTimer();
// if we lose focus, assume the last field is still targeted
//currentField = null;
};
function saveField(type) {
if (!currentField) {
// no field has been focused yet
return;
}
// type is either 'blur' or 'key'
py.run(type + ":" + currentField.innerHTML);
clearChangeTimer();
};
function wrappedExceptForWhitespace(text, front, back) {
var match = text.match(/^(\s*)([^]*?)(\s*)$/);
return match[1] + front + match[2] + back + match[3];
};
function wrap(front, back) {
var s = window.getSelection();
var r = s.getRangeAt(0);
var content = r.cloneContents();
var span = document.createElement("span")
span.appendChild(content);
var new_ = wrappedExceptForWhitespace(span.innerHTML, front, back);
if (insertHTMLOK) {
setFormat("inserthtml", new_);
} else {
r.deleteContents();
r.collapse(true);
r.insertNode(document.createTextNode(new_));
saveField('key');
}
};
function setFields(fields, focusTo) {
var txt = "";
for (var i=0; i<fields.length; i++) {
var n = fields[i][0];
var f = fields[i][1];
if (!f) {
f = "<br>";
}
txt += "<tr><td class=fname>{0}</td></tr><tr><td width=100%%>".format(n);
txt += "<div id=f{0} onkeydown='onKey();' onmouseup='onKey();'".format(i);
txt += " onfocus='onFocus(this);' onblur='onBlur();' class=field ";
txt += "ondragover='onDragOver(this);' ";
txt += "contentEditable=true class=field>{0}</div>".format(f);
txt += "</td></tr>";
}
$("#fields").html("<table cellpadding=0 width=100%%>"+txt+"</table>");
if (!focusTo) {
focusTo = 0;
}
if (focusTo >= 0) {
$("#f"+focusTo).focus();
}
};
function setBackgrounds(cols) {
for (var i=0; i<cols.length; i++) {
$("#f"+i).css("background", cols[i]);
}
}
function setFonts(fonts) {
for (var i=0; i<fonts.length; i++) {
$("#f"+i).css("font-family", fonts[i][0]);
$("#f"+i).css("font-size", fonts[i][1]);
$("#f"+i)[0].dir = fonts[i][2] ? "rtl" : "ltr";
}
}
function showDupes() {
$("#dupes").show();
}
function hideDupes() {
$("#dupes").hide();
}
var mouseDown = 0;
$(function () {
document.body.onmousedown = function () {
mouseDown++;
}
document.body.onmouseup = function () {
mouseDown--;
}
document.onclick = function (evt) {
var src = window.event.srcElement;
if (src.tagName == "IMG") {
// image clicked; find contenteditable parent
var p = src;
while (p = p.parentNode) {
if (p.className == "field") {
$("#"+p.id).focus();
break;
}
}
}
}
});
</script></head><body>
<div id="fields"></div>
<div id="dupes"><a href="#" onclick="py.run('dupes');return false;">%s</a></div>
</body></html>
"""
def _filterHTML(html):
doc = BeautifulSoup(html)
# filter out implicit formatting from webkit
for tag in doc("span", "Apple-style-span"):
preserve = ""
for item in tag['style'].split(";"):
try:
k, v = item.split(":")
except ValueError:
continue
if k.strip() == "color":
preserve += "color:%s;" % v
if preserve:
# preserve colour attribute, delete implicit class
tag.attrs = ((u"style", preserve),)
del tag['class']
else:
# strip completely
tag.replaceWithChildren()
for tag in doc("font", "Apple-style-span"):
# strip all but colour attr from implicit font tags
if 'color' in dict(tag.attrs):
tag.attrs = ((u"color", tag['color']),)
# and apple class
del tag['class']
else:
# remove completely
tag.replaceWithChildren()
# turn file:/// links into relative ones
for tag in doc("img"):
try:
if tag['src'].lower().startswith("file://"):
tag['src'] = os.path.basename(tag['src'])
except KeyError:
# for some bizarre reason, mnemosyne removes src elements
# from missing media
pass
# strip superfluous elements
for elem in "html", "head", "body", "meta":
for tag in doc(elem):
tag.replaceWithChildren()
html = unicode(doc)
return html
# caller is responsible for resetting note on reset
class Editor(object):
def __init__(self, mw, widget, parentWindow, addMode=False):
self.mw = mw
self.widget = widget
self.parentWindow = parentWindow
self.note = None
self.stealFocus = True
self.addMode = addMode
self._loaded = False
self.currentField = 0
# current card, for card layout
self.card = None
self.setupOuter()
self.setupButtons()
self.setupWeb()
self.setupTagsAndDeck()
self.setupKeyboard()
# Initial setup
############################################################
def setupOuter(self):
l = QVBoxLayout()
l.setMargin(0)
l.setSpacing(0)
self.widget.setLayout(l)
self.outerLayout = l
def setupWeb(self):
self.web = EditorWebView(self.widget, self)
self.web.allowDrops = True
self.web.setBridge(self.bridge)
self.outerLayout.addWidget(self.web, 1)
# pick up the window colour
p = self.web.palette()
p.setBrush(QPalette.Base, Qt.transparent)
self.web.page().setPalette(p)
self.web.setAttribute(Qt.WA_OpaquePaintEvent, False)
# Top buttons
######################################################################
def _addButton(self, name, func, key=None, tip=None, size=True, text="",
check=False, native=False, canDisable=True):
b = QPushButton(text)
if check:
b.connect(b, SIGNAL("clicked(bool)"), func)
else:
b.connect(b, SIGNAL("clicked()"), func)
if size:
b.setFixedHeight(20)
b.setFixedWidth(20)
if not native:
b.setStyle(self.plastiqueStyle)
b.setFocusPolicy(Qt.NoFocus)
else:
b.setAutoDefault(False)
if not text:
b.setIcon(QIcon(":/icons/%s.png" % name))
if key:
b.setShortcut(QKeySequence(key))
if tip:
b.setToolTip(shortcut(tip))
if check:
b.setCheckable(True)
self.iconsBox.addWidget(b)
if canDisable:
self._buttons[name] = b
return b
def setupButtons(self):
self._buttons = {}
# button styles for mac
self.plastiqueStyle = QStyleFactory.create("plastique")
self.widget.setStyle(self.plastiqueStyle)
# icons
self.iconsBox = QHBoxLayout()
if not isMac:
self.iconsBox.setMargin(6)
else:
self.iconsBox.setMargin(0)
self.iconsBox.setSpacing(0)
self.outerLayout.addLayout(self.iconsBox)
b = self._addButton
b("fields", self.onFields, "",
shortcut(_("Customize Fields")), size=False, text=_("Fields..."),
native=True, canDisable=False)
b("layout", self.onCardLayout, _("Ctrl+L"),
shortcut(_("Customize Cards (Ctrl+L)")),
size=False, text=_("Cards..."), native=True, canDisable=False)
# align to right
self.iconsBox.addItem(QSpacerItem(20,1, QSizePolicy.Expanding))
b("text_bold", self.toggleBold, _("Ctrl+B"), _("Bold text (Ctrl+B)"),
check=True)
b("text_italic", self.toggleItalic, _("Ctrl+I"), _("Italic text (Ctrl+I)"),
check=True)
b("text_under", self.toggleUnderline, _("Ctrl+U"),
_("Underline text (Ctrl+U)"), check=True)
b("text_super", self.toggleSuper, _("Ctrl+="),
_("Superscript (Ctrl+=)"), check=True)
b("text_sub", self.toggleSub, _("Ctrl+Shift+="),
_("Subscript (Ctrl+Shift+=)"), check=True)
b("text_clear", self.removeFormat, _("Ctrl+R"),
_("Remove formatting (Ctrl+R)"))
but = b("foreground", self.onForeground, _("F7"), text=" ")
but.setToolTip(_("Set foreground colour (F7)"))
self.setupForegroundButton(but)
but = b("change_colour", self.onChangeCol, _("F8"),
_("Change colour (F8)"), text=u"")
but.setFixedWidth(12)
but = b("cloze", self.onCloze, _("Ctrl+Shift+C"),
_("Cloze deletion (Ctrl+Shift+C)"), text="[...]")
but.setFixedWidth(24)
s = self.clozeShortcut2 = QShortcut(
QKeySequence(_("Ctrl+Alt+Shift+C")), self.parentWindow)
s.connect(s, SIGNAL("activated()"), self.onCloze)
# fixme: better image names
b("mail-attachment", self.onAddMedia, _("F3"),
_("Attach pictures/audio/video (F3)"))
b("media-record", self.onRecSound, _("F5"), _("Record audio (F5)"))
b("adv", self.onAdvanced, text=u"")
s = QShortcut(QKeySequence("Ctrl+T, T"), self.widget)
s.connect(s, SIGNAL("activated()"), self.insertLatex)
s = QShortcut(QKeySequence("Ctrl+T, E"), self.widget)
s.connect(s, SIGNAL("activated()"), self.insertLatexEqn)
s = QShortcut(QKeySequence("Ctrl+T, M"), self.widget)
s.connect(s, SIGNAL("activated()"), self.insertLatexMathEnv)
s = QShortcut(QKeySequence("Ctrl+Shift+X"), self.widget)
s.connect(s, SIGNAL("activated()"), self.onHtmlEdit)
runHook("setupEditorButtons", self)
def enableButtons(self, val=True):
for b in self._buttons.values():
b.setEnabled(val)
def disableButtons(self):
self.enableButtons(False)
def onFields(self):
from aqt.fields import FieldDialog
self.saveNow()
FieldDialog(self.mw, self.note, parent=self.parentWindow)
def onCardLayout(self):
from aqt.clayout import CardLayout
self.saveNow()
if self.card:
ord = self.card.ord
else:
ord = 0
CardLayout(self.mw, self.note, ord=ord, parent=self.parentWindow,
addMode=self.addMode)
self.loadNote()
# JS->Python bridge
######################################################################
def bridge(self, str):
if not self.note or not runHook:
# shutdown
return
# focus lost or key/button pressed?
if str.startswith("blur") or str.startswith("key"):
(type, txt) = str.split(":", 1)
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 = unicode(urllib2.unquote(txt.encode("utf")), "utf8")
self.note.fields[self.currentField] = txt
self.mw.requireReset()
if not self.addMode:
self.note.flush()
if type == "blur":
self.disableButtons()
# run any filters
if runFilter(
"editFocusLost", False, self.note, self.currentField):
# something updated the note; schedule reload
def onUpdate():
self.loadNote()
self.checkValid()
self.mw.progress.timer(100, onUpdate, False)
else:
self.checkValid()
else:
runHook("editTimer", self.note)
self.checkValid()
# focused into field?
elif str.startswith("focus"):
(type, num) = str.split(":", 1)
self.enableButtons()
self.currentField = int(num)
# state buttons changed?
elif str.startswith("state"):
(cmd, txt) = str.split(":", 1)
r = json.loads(txt)
self._buttons['text_bold'].setChecked(r['bold'])
self._buttons['text_italic'].setChecked(r['italic'])
self._buttons['text_under'].setChecked(r['under'])
self._buttons['text_super'].setChecked(r['super'])
self._buttons['text_sub'].setChecked(r['sub'])
elif str.startswith("dupes"):
self.showDupes()
else:
print str
def mungeHTML(self, txt):
if txt == "<br>":
txt = ""
return _filterHTML(txt)
# Setting/unsetting the current note
######################################################################
def _loadFinished(self, w):
self._loaded = True
if self.note:
self.loadNote()
def setNote(self, note, hide=True, focus=False):
"Make NOTE the current note."
self.note = note
self.currentField = 0
# change timer
if self.note:
self.web.setHtml(_html % (
getBase(self.mw.col), fontForPlatform(), anki.js.jquery,
(isMac or isWin) and 1 or 0,
_("Show Duplicates")), loadCB=self._loadFinished)
self.updateTagsAndDeck()
self.updateKeyboard()
else:
self.hideCompleters()
if hide:
self.widget.hide()
def loadNote(self):
if self.stealFocus:
field = self.currentField
else:
field = -1
if not self._loaded:
# will be loaded when page is ready
return
data = []
for fld, val in self.note.items():
data.append((fld, self.mw.col.media.escapeImages(val)))
self.web.eval("setFields(%s, %d);" % (
json.dumps(data), field))
self.web.eval("setFonts(%s);" % (
json.dumps(self.fonts())))
self.checkValid()
self.widget.show()
if self.stealFocus:
self.web.setFocus()
def focus(self):
self.web.setFocus()
def fonts(self):
return [(f['font'], f['size'], f['rtl'])
for f in self.note.model()['flds']]
def saveNow(self):
"Must call this before adding cards, closing dialog, etc."
if not self.note:
return
if self.mw.app.focusWidget() != self.web:
# if no fields are focused, there's nothing to save
return
# move focus out of fields and save tags
self.parentWindow.setFocus()
self.saveTags()
# and process events so any focus-lost hooks fire
self.mw.app.processEvents()
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 = self.note.fields[0]
browser = aqt.dialogs.open("Browser", self.mw)
browser.form.searchEdit.lineEdit().setText(
"'note:%s' '%s:%s'" % (
self.note.model()['name'],
self.note.model()['flds'][0]['name'],
contents))
browser.onSearch()
def fieldsAreBlank(self):
if not self.note:
return True
for f in self.note.fields:
if f:
return False
return True
# HTML editing
######################################################################
def onHtmlEdit(self):
self.saveNow()
d = QDialog(self.widget)
form = aqt.forms.edithtml.Ui_Dialog()
form.setupUi(d)
d.connect(form.buttonBox, SIGNAL("helpRequested()"),
lambda: openHelp("editor"))
form.textEdit.setPlainText(self.note.fields[self.currentField])
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>
html = unicode(BeautifulSoup(html))
self.note.fields[self.currentField] = html
self.loadNote()
# Tag & deck handling
######################################################################
def setupTagsAndDeck(self):
import aqt.tagedit
g = QGroupBox(self.widget)
g.setFlat(True)
tb = QGridLayout()
tb.setSpacing(12)
tb.setMargin(6)
# deck
if self.addMode:
l = QLabel(_("Deck"))
tb.addWidget(l, 0, 0)
self.deck = aqt.tagedit.TagEdit(self.widget, type=1)
self.deck.connect(self.deck, SIGNAL("lostFocus"),
self.saveTags)
tb.addWidget(self.deck, 0, 1)
else:
self.deck = None
# tags
l = QLabel(_("Tags"))
tb.addWidget(l, 1, 0)
self.tags = aqt.tagedit.TagEdit(self.widget)
self.tags.connect(self.tags, SIGNAL("lostFocus"),
self.saveTags)
tb.addWidget(self.tags, 1, 1)
g.setLayout(tb)
self.outerLayout.addWidget(g)
def updateTagsAndDeck(self):
if self.tags.col != self.mw.col:
if self.deck:
self.deck.setCol(self.mw.col)
self.tags.setCol(self.mw.col)
if self.addMode:
if self.mw.col.conf.get("addToCur", True):
col = self.mw.col
did = col.conf['curDeck']
if col.decks.isDyn(did):
did = 1
self.deck.setText(self.mw.col.decks.name(did))
else:
self.deck.setText(self.mw.col.decks.nameOrNone(
self.note.model()['did']) or _("Default"))
self.tags.setText(self.note.stringTags().strip())
def saveTags(self):
if not self.note:
return
self.note.tags = self.mw.col.tags.split(self.tags.text())
if not self.addMode:
self.note.flush()
runHook("tagsUpdated", self.note)
def saveAddModeVars(self):
if self.addMode:
# save deck name
name = self.deck.text()
if not name.strip():
self.note.model()['did'] = 1
else:
did = self.mw.col.decks.id(name)
deck = self.mw.col.decks.get(did)
if deck['dyn']:
did = 1
showInfo(_("Using default deck instead of cram deck."))
self.note.model()['did'] = did
# if adding to the current and the user specified a different
# deck, make that the current
if self.mw.col.conf.get("addToCur", True):
self.mw.col.decks.select(did)
# 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()
if self.addMode:
self.deck.hideCompleter()
# Format buttons
######################################################################
def toggleBold(self, bool):
self._eval("setFormat('bold');")
def toggleItalic(self, bool):
self._eval("setFormat('italic');")
def toggleUnderline(self, bool):
self._eval("setFormat('underline');")
def toggleSuper(self, bool):
self._eval("setFormat('superscript');")
def toggleSub(self, bool):
self._eval("setFormat('subscript');")
def removeFormat(self):
self._eval("setFormat('removeFormat');")
def onCloze(self):
# check that the model is set up for cloze deletion
if '{{cloze:' not in self.note.model()['tmpls'][0]['qfmt']:
openHelp("cloze")
return
# find the highest existing cloze
highest = 0
for name, val in self.note.items():
m = re.findall("\{\{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._eval("wrap('{{c%d::', '}}');" % highest)
def _eval(self, str):
# some versions of webkit crash if we try a dom-modifying operation
# before outstanding UI events have been processed
self.mw.app.processEvents()
self.mw.progress.timer(100, lambda: self.web.eval(str), False)
# Foreground colour
######################################################################
def setupForegroundButton(self, but):
self.foregroundFrame = QFrame()
self.foregroundFrame.setAutoFillBackground(True)
self.foregroundFrame.setFocusPolicy(Qt.NoFocus)
self.fcolour = self.mw.pm.profile.get("lastColour", "#00f")
self.onColourChanged()
hbox = QHBoxLayout()
hbox.addWidget(self.foregroundFrame)
hbox.setMargin(5)
but.setLayout(hbox)
# 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.foregroundFrame.setPalette(QPalette(QColor(self.fcolour)))
def onColourChanged(self):
self._updateForegroundButton()
self.mw.pm.profile['lastColour'] = self.fcolour
def _wrapWithColour(self, colour):
self._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)")
def accept(file):
self.addMedia(file, canDelete=True)
file = getFile(self.widget, _("Add Media"), accept, key, key="media")
def addMedia(self, path, canDelete=False):
html = self._addMedia(path, canDelete)
self._eval("setFormat('inserthtml', %s);" % json.dumps(html))
def _addMedia(self, path, canDelete=False):
"Add to media folder and return basename."
# copy to media folder
name = self.mw.col.media.addFile(path)
# remove original?
if canDelete and self.mw.pm.profile['deleteMedia']:
if os.path.abspath(name) != os.path.abspath(path):
try:
os.unlink(old)
except:
pass
# return a local html link
ext = name.split(".")[-1].lower()
if ext in pics:
return '<img src="%s">' % name
else:
anki.sound.play(name)
return '[sound:%s]' % name
def onRecSound(self):
try:
file = getAudio(self.widget)
except Exception, e:
showWarning(_(
"Couldn't record audio. Have you installed lame and sox?") +
"\n\n" + unicode(e))
return
self.addMedia(file)
# Advanced menu
######################################################################
def onAdvanced(self):
m = QMenu(self.mw)
a = m.addAction(_("LaTeX"))
a.setShortcut(QKeySequence("Ctrl+T, T"))
a.connect(a, SIGNAL("triggered()"), self.insertLatex)
a = m.addAction(_("LaTeX equation"))
a.setShortcut(QKeySequence("Ctrl+T, E"))
a.connect(a, SIGNAL("triggered()"), self.insertLatexEqn)
a = m.addAction(_("LaTeX math env."))
a.setShortcut(QKeySequence("Ctrl+T, M"))
a.connect(a, SIGNAL("triggered()"), self.insertLatexMathEnv)
a = m.addAction(_("Edit HTML"))
a.setShortcut(QKeySequence("Ctrl+Shift+X"))
a.connect(a, SIGNAL("triggered()"), self.onHtmlEdit)
m.exec_(QCursor.pos())
# LaTeX
######################################################################
def insertLatex(self):
self._eval("wrap('[latex]', '[/latex]');")
def insertLatexEqn(self):
self._eval("wrap('[$]', '[/$]');")
def insertLatexMathEnv(self):
self._eval("wrap('[$$]', '[/$$]');")
# Keyboard layout
######################################################################
def setupKeyboard(self):
if isWin and self.mw.pm.profile['preserveKeyboard']:
a = ctypes.windll.user32.ActivateKeyboardLayout
a.restype = ctypes.c_void_p
a.argtypes = [ctypes.c_void_p, ctypes.c_uint]
g = ctypes.windll.user32.GetKeyboardLayout
g.restype = ctypes.c_void_p
g.argtypes = [ctypes.c_uint]
else:
a = g = None
self.activateKeyboard = a
self.getKeyboard = g
def updateKeyboard(self):
self.keyboardLayouts = {}
def saveKeyboard(self):
if not self.getKeyboard:
return
self.keyboardLayouts[self.currentField] = self.getKeyboard(0)
def restoreKeyboard(self):
if not self.getKeyboard:
return
if self.currentField in self.keyboardLayouts:
self.activateKeyboard(self.keyboardLayouts[self.currentField], 0)
# Pasting, drag & drop, and keyboard layouts
######################################################################
class EditorWebView(AnkiWebView):
def __init__(self, parent, editor):
AnkiWebView.__init__(self)
self.editor = editor
self.errtxt = _("An error occured while opening %s")
self.strip = self.editor.mw.pm.profile['stripHTML']
def keyPressEvent(self, evt):
if evt.matches(QKeySequence.Paste):
self.onPaste()
return evt.accept()
elif evt.matches(QKeySequence.Copy):
self.onCopy()
return evt.accept()
elif evt.matches(QKeySequence.Cut):
self.onCut()
return evt.accept()
QWebView.keyPressEvent(self, evt)
def onCut(self):
self.triggerPageAction(QWebPage.Cut)
self._flagAnkiText()
def onCopy(self):
self.triggerPageAction(QWebPage.Copy)
self._flagAnkiText()
def onPaste(self):
mime = self.prepareClip()
self.triggerPageAction(QWebPage.Paste)
self.restoreClip(mime)
def mouseReleaseEvent(self, evt):
if not isMac and not isWin and evt.button() == Qt.MidButton:
# middle click on x11; munge the clipboard before standard
# handling
mime = self.prepareClip(mode=QClipboard.Selection)
AnkiWebView.mouseReleaseEvent(self, evt)
self.restoreClip(mime, mode=QClipboard.Selection)
else:
AnkiWebView.mouseReleaseEvent(self, evt)
def focusInEvent(self, evt):
window = False
if evt.reason() in (Qt.ActiveWindowFocusReason, Qt.PopupFocusReason):
# editor area got focus again; need to tell js not to adjust cursor
self.eval("mouseDown++;")
window = True
AnkiWebView.focusInEvent(self, evt)
if evt.reason() == Qt.TabFocusReason:
self.eval("focusField(0);")
elif evt.reason() == Qt.BacktabFocusReason:
n = len(self.editor.note.fields) - 1
self.eval("focusField(%d);" % n)
elif window:
self.eval("mouseDown--;")
def dropEvent(self, evt):
oldmime = evt.mimeData()
# coming from this program?
if evt.source():
if oldmime.hasHtml():
mime = QMimeData()
mime.setHtml(_filterHTML(oldmime.html()))
else:
# old qt on linux won't give us html when dragging an image;
# in that case just do the default action (which is to ignore
# the drag)
return AnkiWebView.dropEvent(self, evt)
else:
mime = self._processMime(oldmime)
# create a new event with the new mime data and run it
new = QDropEvent(evt.pos(), evt.possibleActions(), mime,
evt.mouseButtons(), evt.keyboardModifiers())
evt.accept()
QWebView.dropEvent(self, new)
# tell the drop target to take focus so the drop contents are saved
self.eval("dropTarget.focus();")
def prepareClip(self, mode=QClipboard.Clipboard):
clip = self.editor.mw.app.clipboard()
mime = clip.mimeData(mode=mode)
if mime.hasHtml() and mime.html().startswith("<!--anki-->"):
# pasting from another field, filter extraneous webkit formatting
html = mime.html()[11:]
html = _filterHTML(html)
mime.setHtml(html)
return
self.saveClip(mode=mode)
mime = self._processMime(mime)
clip.setMimeData(mime, mode=mode)
def restoreClip(self, mime, mode=QClipboard.Clipboard):
if not mime:
return
clip = self.editor.mw.app.clipboard()
clip.setMimeData(mime, mode=mode)
def saveClip(self, mode):
# we don't own the clipboard object, so we need to copy it
mime = self.editor.mw.app.clipboard().mimeData(mode=mode)
n = QMimeData()
if mime.hasText():
n.setText(mime.text())
if mime.hasHtml():
n.setHtml(mime.html())
if mime.hasUrls():
n.setUrls(mime.urls())
if mime.hasImage():
n.setImageData(mime.imageData())
return n
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()
if mime.hasImage():
return self._processImage(mime)
elif mime.hasUrls():
return self._processUrls(mime)
elif mime.hasText() and (self.strip or not mime.hasHtml()):
return self._processText(mime)
elif mime.hasHtml():
return self._processHtml(mime)
else:
# nothing
return QMimeData()
def _processUrls(self, mime):
url = mime.urls()[0].toString()
link = None
for suffix in pics+audio:
if url.lower().endswith(suffix):
link = self._retrieveURL(url)
break
if not link:
# not a supported media type; include link verbatim
link = url
mime = QMimeData()
mime.setHtml(link)
return mime
def _processText(self, mime):
txt = unicode(mime.text())
l = txt.lower()
html = None
# firefox on linux just gives us a url for an image
if "\n" in l and (l.startswith("http://") or l.startswith("file://")):
txt = txt.split("\r\n")[0]
html = self._retrieveURL(txt)
new = QMimeData()
if html:
new.setHtml(html)
else:
new.setText(mime.text())
return new
def _processHtml(self, mime):
html = mime.html()
if self.strip:
html = stripHTML(html)
else:
html = _filterHTML(html)
mime = QMimeData()
mime.setHtml(html)
return mime
def _processImage(self, mime):
im = QImage(mime.imageData())
name = namedtmp("paste-%d" % im.cacheKey())
uname = unicode(name, sys.getfilesystemencoding())
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?
if not os.path.exists(uname+ext):
return QMimeData()
mime = QMimeData()
mime.setHtml(self.editor._addMedia(uname+ext))
return mime
def _retrieveURL(self, url):
# is it media?
ext = url.split(".")[-1].lower()
if ext not in pics and ext not in audio:
return
# fetch it into a temporary folder
try:
req = urllib2.Request(url, None, {
'User-Agent': 'Mozilla/5.0 (compatible; Anki)'})
filecontents = urllib2.urlopen(req).read()
except urllib2.URLError, e:
showWarning(self.errtxt % e)
return
path = namedtmp(os.path.basename(url))
file = open(path, "wb")
file.write(filecontents)
file.close()
return self.editor._addMedia(path)
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()
mime = clip.mimeData()
if not mime.hasHtml():
return
html = mime.html()
mime.setHtml("<!--anki-->" + mime.html())