anki/aqt/utils.py

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# Copyright: Damien Elmes <anki@ichi2.net>
# -*- coding: utf-8 -*-
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
from aqt.qt import *
import re, os, sys, urllib.request, urllib.parse, urllib.error, subprocess
import aqt
from anki.sound import stripSounds
from anki.utils import isWin, isMac, invalidFilename
from contextlib import contextmanager
@contextmanager
def noBundledLibs():
oldlpath = os.environ.pop("LD_LIBRARY_PATH", None)
yield
if oldlpath is not None:
os.environ["LD_LIBRARY_PATH"] = oldlpath
def openHelp(section):
link = aqt.appHelpSite
if section:
link += "#%s" % section
openLink(link)
def openLink(link):
tooltip(_("Loading..."), period=1000)
with noBundledLibs():
QDesktopServices.openUrl(QUrl(link))
def showWarning(text, parent=None, help="", title="Anki"):
"Show a small warning with an OK button."
return showInfo(text, parent, help, "warning", title=title)
def showCritical(text, parent=None, help="", title="Anki"):
"Show a small critical error with an OK button."
return showInfo(text, parent, help, "critical", title=title)
def showInfo(text, parent=False, help="", type="info", title="Anki"):
"Show a small info window with an OK button."
if parent is False:
parent = aqt.mw.app.activeWindow() or aqt.mw
if type == "warning":
icon = QMessageBox.Warning
elif type == "critical":
icon = QMessageBox.Critical
else:
icon = QMessageBox.Information
mb = QMessageBox(parent)
mb.setText(text)
mb.setIcon(icon)
mb.setWindowModality(Qt.WindowModal)
mb.setWindowTitle(title)
b = mb.addButton(QMessageBox.Ok)
b.setDefault(True)
if help:
b = mb.addButton(QMessageBox.Help)
b.clicked.connect(lambda: openHelp(help))
b.setAutoDefault(False)
return mb.exec_()
def showText(txt, parent=None, type="text", run=True, geomKey=None, \
minWidth=500, minHeight=400, title="Anki"):
if not parent:
parent = aqt.mw.app.activeWindow() or aqt.mw
diag = QDialog(parent)
diag.setWindowTitle(title)
layout = QVBoxLayout(diag)
diag.setLayout(layout)
text = QTextBrowser()
text.setOpenExternalLinks(True)
if type == "text":
text.setPlainText(txt)
else:
text.setHtml(txt)
layout.addWidget(text)
box = QDialogButtonBox(QDialogButtonBox.Close)
layout.addWidget(box)
def onReject():
if geomKey:
saveGeom(diag, geomKey)
QDialog.reject(diag)
box.rejected.connect(onReject)
def onFinish():
if geomKey:
saveGeom(diag, geomKey)
box.accepted.connect(onFinish)
diag.setMinimumHeight(minHeight)
diag.setMinimumWidth(minWidth)
if geomKey:
restoreGeom(diag, geomKey)
if run:
diag.exec_()
else:
return diag, box
def askUser(text, parent=None, help="", defaultno=False, msgfunc=None, \
title="Anki"):
"Show a yes/no question. Return true if yes."
if not parent:
parent = aqt.mw.app.activeWindow()
if not msgfunc:
msgfunc = QMessageBox.question
sb = QMessageBox.Yes | QMessageBox.No
if help:
sb |= QMessageBox.Help
while 1:
if defaultno:
default = QMessageBox.No
else:
default = QMessageBox.Yes
r = msgfunc(parent, title, text, sb, default)
if r == QMessageBox.Help:
openHelp(help)
else:
break
return r == QMessageBox.Yes
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class ButtonedDialog(QMessageBox):
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def __init__(self, text, buttons, parent=None, help="", title="Anki"):
QDialog.__init__(self, parent)
self.buttons = []
self.setWindowTitle(title)
self.help = help
self.setIcon(QMessageBox.Warning)
self.setText(text)
# v = QVBoxLayout()
# v.addWidget(QLabel(text))
# box = QDialogButtonBox()
# v.addWidget(box)
for b in buttons:
self.buttons.append(
self.addButton(b, QMessageBox.AcceptRole))
if help:
self.addButton(_("Help"), QMessageBox.HelpRole)
buttons.append(_("Help"))
#self.setLayout(v)
def run(self):
self.exec_()
but = self.clickedButton().text()
if but == "Help":
# FIXME stop dialog closing?
openHelp(self.help)
txt = self.clickedButton().text()
# work around KDE 'helpfully' adding accelerators to button text of Qt apps
return txt.replace("&", "")
def setDefault(self, idx):
self.setDefaultButton(self.buttons[idx])
def askUserDialog(text, buttons, parent=None, help="", title="Anki"):
if not parent:
parent = aqt.mw
diag = ButtonedDialog(text, buttons, parent, help, title=title)
return diag
class GetTextDialog(QDialog):
def __init__(self, parent, question, help=None, edit=None, default="", \
title="Anki", minWidth=400):
QDialog.__init__(self, parent)
self.setWindowTitle(title)
self.question = question
self.help = help
self.qlabel = QLabel(question)
self.setMinimumWidth(minWidth)
v = QVBoxLayout()
v.addWidget(self.qlabel)
if not edit:
edit = QLineEdit()
self.l = edit
if default:
self.l.setText(default)
self.l.selectAll()
v.addWidget(self.l)
buts = QDialogButtonBox.Ok | QDialogButtonBox.Cancel
if help:
buts |= QDialogButtonBox.Help
b = QDialogButtonBox(buts)
v.addWidget(b)
self.setLayout(v)
b.button(QDialogButtonBox.Ok).clicked.connect(self.accept)
b.button(QDialogButtonBox.Cancel).clicked.connect(self.reject)
if help:
b.button(QDialogButtonBox.Help).clicked.connect(self.helpRequested)
def accept(self):
return QDialog.accept(self)
def reject(self):
return QDialog.reject(self)
def helpRequested(self):
openHelp(self.help)
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def getText(prompt, parent=None, help=None, edit=None, default="",
title="Anki", geomKey=None, **kwargs):
if not parent:
parent = aqt.mw.app.activeWindow() or aqt.mw
d = GetTextDialog(parent, prompt, help=help, edit=edit,
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default=default, title=title, **kwargs)
d.setWindowModality(Qt.WindowModal)
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if geomKey:
restoreGeom(d, geomKey)
ret = d.exec_()
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if geomKey and ret:
saveGeom(d, geomKey)
return (str(d.l.text()), ret)
def getOnlyText(*args, **kwargs):
(s, r) = getText(*args, **kwargs)
if r:
return s
else:
return ""
# fixme: these utilities could be combined into a single base class
def chooseList(prompt, choices, startrow=0, parent=None):
if not parent:
parent = aqt.mw.app.activeWindow()
d = QDialog(parent)
d.setWindowModality(Qt.WindowModal)
l = QVBoxLayout()
d.setLayout(l)
t = QLabel(prompt)
l.addWidget(t)
c = QListWidget()
c.addItems(choices)
c.setCurrentRow(startrow)
l.addWidget(c)
bb = QDialogButtonBox(QDialogButtonBox.Ok)
bb.accepted.connect(d.accept)
l.addWidget(bb)
d.exec_()
return c.currentRow()
def getTag(parent, deck, question, tags="user", **kwargs):
from aqt.tagedit import TagEdit
te = TagEdit(parent)
te.setCol(deck)
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ret = getText(question, parent, edit=te,
geomKey='getTag', **kwargs)
te.hideCompleter()
return ret
# File handling
######################################################################
def getFile(parent, title, cb, filter="*.*", dir=None, key=None):
"Ask the user for a file."
assert not dir or not key
if not dir:
dirkey = key+"Directory"
dir = aqt.mw.pm.profile.get(dirkey, "")
else:
dirkey = None
d = QFileDialog(parent)
d.setFileMode(QFileDialog.ExistingFile)
if os.path.exists(dir):
d.setDirectory(dir)
d.setWindowTitle(title)
d.setNameFilter(filter)
ret = []
def accept():
file = str(list(d.selectedFiles())[0])
if dirkey:
dir = os.path.dirname(file)
aqt.mw.pm.profile[dirkey] = dir
if cb:
cb(file)
ret.append(file)
d.accepted.connect(accept)
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if key:
restoreState(d, key)
d.exec_()
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if key:
saveState(d, key)
return ret and ret[0]
def getSaveFile(parent, title, dir_description, key, ext, fname=None):
"""Ask the user for a file to save. Use DIR_DESCRIPTION as config
variable. The file dialog will default to open with FNAME."""
config_key = dir_description + 'Directory'
defaultPath = QStandardPaths.writableLocation(QStandardPaths.DocumentsLocation)
base = aqt.mw.pm.profile.get(config_key, defaultPath)
path = os.path.join(base, fname)
file = QFileDialog.getSaveFileName(
parent, title, path, "{0} (*{1})".format(key, ext),
options=QFileDialog.DontConfirmOverwrite)[0]
if file:
# add extension
if not file.lower().endswith(ext):
file += ext
# save new default
dir = os.path.dirname(file)
aqt.mw.pm.profile[config_key] = dir
# check if it exists
if os.path.exists(file):
if not askUser(
_("This file exists. Are you sure you want to overwrite it?"),
parent):
return None
return file
def saveGeom(widget, key):
key += "Geom"
aqt.mw.pm.profile[key] = widget.saveGeometry()
def restoreGeom(widget, key, offset=None, adjustSize=False):
key += "Geom"
if aqt.mw.pm.profile.get(key):
widget.restoreGeometry(aqt.mw.pm.profile[key])
if isMac and offset:
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if qtminor > 6:
# bug in osx toolkit
s = widget.size()
widget.resize(s.width(), s.height()+offset*2)
else:
if adjustSize:
widget.adjustSize()
def saveState(widget, key):
key += "State"
aqt.mw.pm.profile[key] = widget.saveState()
def restoreState(widget, key):
key += "State"
if aqt.mw.pm.profile.get(key):
widget.restoreState(aqt.mw.pm.profile[key])
def saveSplitter(widget, key):
key += "Splitter"
aqt.mw.pm.profile[key] = widget.saveState()
def restoreSplitter(widget, key):
key += "Splitter"
if aqt.mw.pm.profile.get(key):
widget.restoreState(aqt.mw.pm.profile[key])
def saveHeader(widget, key):
key += "Header"
aqt.mw.pm.profile[key] = widget.saveState()
def restoreHeader(widget, key):
key += "Header"
if aqt.mw.pm.profile.get(key):
widget.restoreState(aqt.mw.pm.profile[key])
def mungeQA(col, txt):
txt = col.media.escapeImages(txt)
txt = stripSounds(txt)
return txt
def applyStyles(widget):
p = os.path.join(aqt.mw.pm.base, "style.css")
if os.path.exists(p):
widget.setStyleSheet(open(p).read())
def openFolder(path):
if isWin:
subprocess.Popen(["explorer", "file://"+path])
else:
with noBundledLibs():
QDesktopServices.openUrl(QUrl("file://" + path))
def shortcut(key):
if isMac:
return re.sub("(?i)ctrl", "Command", key)
return key
def maybeHideClose(bbox):
if isMac:
b = bbox.button(QDialogButtonBox.Close)
if b:
bbox.removeButton(b)
def addCloseShortcut(widg):
if not isMac:
return
widg._closeShortcut = QShortcut(QKeySequence("Ctrl+W"), widg)
widg._closeShortcut.activated.connect(widg.reject)
def downArrow():
if isWin:
return ""
# windows 10 is lacking the smaller arrow on English installs
return ""
# Tooltips
######################################################################
_tooltipTimer = None
_tooltipLabel = None
def tooltip(msg, period=3000, parent=None):
global _tooltipTimer, _tooltipLabel
class CustomLabel(QLabel):
silentlyClose = True
def mousePressEvent(self, evt):
evt.accept()
self.hide()
closeTooltip()
aw = parent or aqt.mw.app.activeWindow() or aqt.mw
lab = CustomLabel("""\
<table cellpadding=10>
<tr>
<td>%s</td>
</tr>
</table>""" % msg, aw)
lab.setFrameStyle(QFrame.Panel)
lab.setLineWidth(2)
lab.setWindowFlags(Qt.ToolTip)
p = QPalette()
p.setColor(QPalette.Window, QColor("#feffc4"))
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p.setColor(QPalette.WindowText, QColor("#000000"))
lab.setPalette(p)
lab.move(
aw.mapToGlobal(QPoint(0, -100 + aw.height())))
lab.show()
_tooltipTimer = aqt.mw.progress.timer(
period, closeTooltip, False)
_tooltipLabel = lab
def closeTooltip():
global _tooltipLabel, _tooltipTimer
if _tooltipLabel:
try:
_tooltipLabel.deleteLater()
except:
# already deleted as parent window closed
pass
_tooltipLabel = None
if _tooltipTimer:
_tooltipTimer.stop()
_tooltipTimer = None
# true if invalid; print warning
def checkInvalidFilename(str, dirsep=True):
bad = invalidFilename(str, dirsep)
if bad:
showWarning(_("The following character can not be used: %s") %
bad)
return True
return False
# Menus
######################################################################
class MenuList:
def __init__(self):
self.children = []
def addItem(self, title, func):
item = MenuItem(title, func)
self.children.append(item)
return item
def addSeparator(self):
self.children.append(None)
def addMenu(self, title):
submenu = SubMenu(title)
self.children.append(submenu)
return submenu
def addChild(self, child):
self.children.append(child)
def renderTo(self, qmenu):
for child in self.children:
if child is None:
qmenu.addSeparator()
elif isinstance(child, QAction):
qmenu.addAction(child)
else:
child.renderTo(qmenu)
def popupOver(self, widget):
qmenu = QMenu()
self.renderTo(qmenu)
qmenu.exec_(widget.mapToGlobal(QPoint(0,0)))
# Chunking
######################################################################
chunkSize = 30
def chunked(self):
if len(self.children) <= self.chunkSize:
return self
newList = MenuList()
oldItems = self.children[:]
while oldItems:
chunk = oldItems[:self.chunkSize]
del oldItems[:self.chunkSize]
label = self._chunkLabel(chunk)
menu = newList.addMenu(label)
menu.children = chunk
return newList
def _chunkLabel(self, items):
start = items[0].title
end = items[-1].title
prefix = os.path.commonprefix([start.upper(), end.upper()])
n = len(prefix)+1
return "{}-{}".format(start[:n].upper(), end[:n].upper())
class SubMenu(MenuList):
def __init__(self, title):
super().__init__()
self.title = title
def renderTo(self, menu):
submenu = menu.addMenu(self.title)
super().renderTo(submenu)
class MenuItem:
def __init__(self, title, func):
self.title = title
self.func = func
def renderTo(self, qmenu):
a = qmenu.addAction(self.title)
a.triggered.connect(self.func)