/usr/lib/python2.7/dist-packages/zope/formlib/textwidgets.py is in python-zope.formlib 4.3.0a2-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 | ##############################################################################
#
# Copyright (c) 2004 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Browser widgets with text-based input
"""
import decimal
from xml.sax import saxutils
from zope.interface import implementer
from zope.datetime import parseDatetimetz
from zope.datetime import DateTimeError
from zope.i18n.format import DateTimeParseError
from zope.formlib._compat import toUnicode, unicode, PY3
from zope.formlib.interfaces import IInputWidget, ConversionError
from zope.formlib.i18n import _
from zope.formlib.interfaces import ITextBrowserWidget
from zope.formlib.widget import SimpleInputWidget, renderElement
from zope.formlib.widget import DisplayWidget
def escape(str):
if str is not None:
str = saxutils.escape(str)
return str
@implementer(ITextBrowserWidget)
class TextWidget(SimpleInputWidget):
"""Text widget.
Single-line text (unicode) input
>>> from zope.publisher.browser import TestRequest
>>> from zope.schema import TextLine
>>> field = TextLine(__name__='foo', title=u'on')
>>> request = TestRequest(form={'field.foo': u'Bob'})
>>> widget = TextWidget(field, request)
>>> widget.hasInput()
True
>>> widget.getInputValue()
u'Bob'
>>> def normalize(s):
... return '\\n '.join(filter(None, s.split(' ')))
>>> print(normalize( widget() ))
<input
class="textType"
id="field.foo"
name="field.foo"
size="20"
type="text"
value="Bob"
/>
>>> print(normalize( widget.hidden() ))
<input
class="hiddenType"
id="field.foo"
name="field.foo"
type="hidden"
value="Bob"
/>
Calling `setRenderedValue` will change what gets output:
>>> widget.setRenderedValue("Barry")
>>> print(normalize( widget() ))
<input
class="textType"
id="field.foo"
name="field.foo"
size="20"
type="text"
value="Barry"
/>
Check that HTML is correctly encoded and decoded:
>>> request = TestRequest(
... form={'field.foo': u'<h1>©</h1>'})
>>> widget = TextWidget(field, request)
>>> widget.getInputValue()
u'<h1>©</h1>'
>>> print(normalize( widget() ))
<input
class="textType"
id="field.foo"
name="field.foo"
size="20"
type="text"
value="<h1>&copy;</h1>"
/>
"""
default = ''
displayWidth = 20
displayMaxWidth = ""
extra = ''
style = ''
convert_missing_value = True
def __init__(self, *args):
super(TextWidget, self).__init__(*args)
def __call__(self):
value = self._getFormValue()
if value is None or value == self.context.missing_value:
value = ''
kwargs = {'type': self.type,
'name': self.name,
'id': self.name,
'value': value,
'cssClass': self.cssClass,
'style': self.style,
'size': self.displayWidth,
'extra': self.extra}
if self.displayMaxWidth:
kwargs['maxlength'] = self.displayMaxWidth # TODO This is untested.
return renderElement(self.tag, **kwargs)
def _toFieldValue(self, input):
if self.convert_missing_value and input == self._missing:
value = self.context.missing_value
else:
# We convert everything to unicode. This might seem a bit crude,
# but anything contained in a TextWidget should be representable
# as a string. Note that you always have the choice of overriding
# the method.
try:
value = toUnicode(input)
except ValueError as v:
raise ConversionError(_("Invalid text data"), v)
return value
class Text(SimpleInputWidget):
def _toFieldValue(self, input):
return super(Text, self)._toFieldValue(input)
class Bytes(SimpleInputWidget):
def _toFieldValue(self, input):
value = super(Bytes, self)._toFieldValue(input)
if isinstance(value, unicode):
try:
value = value.encode('ascii')
except UnicodeError as v:
raise ConversionError(_("Invalid textual data"), v)
return value
class BytesWidget(Bytes, TextWidget):
"""Bytes widget.
Single-line data (string) input
>>> from zope.publisher.browser import TestRequest
>>> from zope.schema import BytesLine
>>> field = BytesLine(__name__='foo', title=u'on')
>>> request = TestRequest(form={'field.foo': u'Bob'})
>>> widget = BytesWidget(field, request)
>>> widget.hasInput()
True
>>> widget.getInputValue()
'Bob'
"""
class BytesDisplayWidget(DisplayWidget):
"""Bytes display widget"""
def __call__(self):
if self._renderedValueSet():
content = self._data
else:
content = self.context.default
return renderElement("pre", contents=escape(content))
# for things which are of the str type on both Python 2 and 3
if PY3: #pragma NO COVER
NativeString = Text
NativeStringWidget = TextWidget
NativeStringDisplayWidget = DisplayWidget
else: #pragma NO COVER
NativeString = Bytes
NativeStringWidget = BytesWidget
NativeStringDisplayWidget = BytesDisplayWidget
class ASCII(NativeString):
"""ASCII"""
class ASCIIWidget(NativeStringWidget):
"""ASCII widget.
Single-line data (string) input
"""
class ASCIIDisplayWidget(NativeStringDisplayWidget):
"""ASCII display widget"""
class URIDisplayWidget(DisplayWidget):
"""URI display widget.
:ivar linkTarget:
The value of the ``target`` attribute for the generated hyperlink.
If this is not set, no ``target`` attribute is generated.
"""
linkTarget = None
def __call__(self):
if self._renderedValueSet():
content = self._data
else:
content = self.context.default
if not content:
# If there is no content it is not useful to render an anchor.
return ''
content = escape(content)
kw = dict(contents=content, href=content)
if self.linkTarget:
kw["target"] = self.linkTarget
return renderElement("a", **kw)
class TextAreaWidget(SimpleInputWidget):
"""TextArea widget.
Multi-line text (unicode) input.
>>> from zope.publisher.browser import TestRequest
>>> from zope.schema import Text
>>> field = Text(__name__='foo', title=u'on')
>>> request = TestRequest(form={'field.foo': u'Hello\\r\\nworld!'})
>>> widget = TextAreaWidget(field, request)
>>> widget.hasInput()
True
>>> widget.getInputValue()
u'Hello\\nworld!'
>>> def normalize(s):
... return '\\n '.join(filter(None, s.split(' ')))
>>> print(normalize( widget() ))
<textarea
cols="60"
id="field.foo"
name="field.foo"
rows="15"
>Hello\r
world!</textarea>
>>> print(normalize( widget.hidden() ))
<input
class="hiddenType"
id="field.foo"
name="field.foo"
type="hidden"
value="Hello world!"
/>
Calling `setRenderedValue` will change what gets output:
>>> widget.setRenderedValue("Hey\\ndude!")
>>> print(normalize( widget() ))
<textarea
cols="60"
id="field.foo"
name="field.foo"
rows="15"
>Hey\r
dude!</textarea>
Check that HTML is correctly encoded and decoded:
>>> request = TestRequest(
... form={'field.foo': u'<h1>©</h1>'})
>>> widget = TextAreaWidget(field, request)
>>> widget.getInputValue()
u'<h1>©</h1>'
>>> print(normalize( widget() ))
<textarea
cols="60"
id="field.foo"
name="field.foo"
rows="15"
><h1>&copy;</h1></textarea>
There was a but which caused the content of <textarea> tags not to be
rendered correctly when there was a conversion error. Make sure the quoting
works correctly::
>>> from zope.schema import Text
>>> field = Text(__name__='description', title=u'Description')
>>> from zope.formlib.interfaces import ConversionError
>>> class TestTextAreaWidget(TextAreaWidget):
... def _toFieldValue(self, input):
... if 'foo' in input:
... raise ConversionError("I don't like foo.")
... return input
...
>>> request = TestRequest(form={'field.description': u'<p>bar</p>'})
>>> widget = TestTextAreaWidget(field, request)
>>> widget.getInputValue()
u'<p>bar</p>'
>>> print(normalize( widget() ))
<textarea
cols="60"
id="field.description"
name="field.description"
rows="15"
><p>bar</p></textarea>
>>> request = TestRequest(form={'field.description': u'<p>foo</p>'})
>>> widget = TestTextAreaWidget(field, request)
>>> try:
... widget.getInputValue()
... except ConversionError as error:
... print(error.doc())
I don't like foo.
>>> print(normalize( widget() ))
<textarea
cols="60"
id="field.description"
name="field.description"
rows="15"
><p>foo</p></textarea>
"""
default = ""
width = 60
height = 15
extra = ""
style = ''
def _toFieldValue(self, value):
value = super(TextAreaWidget, self)._toFieldValue(value)
if value:
try:
value = toUnicode(value)
except ValueError as v:
raise ConversionError(_("Invalid unicode data"), v)
else:
value = value.replace("\r\n", "\n")
return value
def _toFormValue(self, value):
value = super(TextAreaWidget, self)._toFormValue(value)
if value:
value = value.replace("\n", "\r\n")
else:
value = u''
return value
def __call__(self):
return renderElement("textarea",
name=self.name,
id=self.name,
cssClass=self.cssClass,
rows=self.height,
cols=self.width,
style=self.style,
contents=escape(self._getFormValue()),
extra=self.extra)
class BytesAreaWidget(Bytes, TextAreaWidget):
"""BytesArea widget.
Multi-line string input.
>>> from zope.publisher.browser import TestRequest
>>> from zope.schema import Bytes
>>> field = Bytes(__name__='foo', title=u'on')
>>> request = TestRequest(form={'field.foo': u'Hello\\r\\nworld!'})
>>> widget = BytesAreaWidget(field, request)
>>> widget.hasInput()
True
>>> widget.getInputValue()
'Hello\\nworld!'
"""
class ASCIIAreaWidget(NativeString, TextAreaWidget):
"""ASCIIArea widget.
Multi-line string input.
>>> from zope.publisher.browser import TestRequest
>>> from zope.schema import ASCII
>>> field = ASCII(__name__='foo', title=u'on')
>>> request = TestRequest(form={'field.foo': u'Hello\\r\\nworld!'})
>>> widget = ASCIIAreaWidget(field, request)
>>> widget.hasInput()
True
>>> widget.getInputValue()
'Hello\\nworld!'
"""
class PasswordWidget(TextWidget):
"""Password Widget"""
type = 'password'
def __call__(self):
displayMaxWidth = self.displayMaxWidth or 0
if displayMaxWidth > 0:
return renderElement(self.tag,
type=self.type,
name=self.name,
id=self.name,
value='',
cssClass=self.cssClass,
style=self.style,
size=self.displayWidth,
maxlength=displayMaxWidth,
extra=self.extra)
else:
return renderElement(self.tag,
type=self.type,
name=self.name,
id=self.name,
value='',
cssClass=self.cssClass,
style=self.style,
size=self.displayWidth,
extra=self.extra)
def _toFieldValue(self, input):
try:
existing = self.context.get(self.context.context)
except AttributeError:
existing = False
if (not input) and existing:
return self.context.UNCHANGED_PASSWORD
return super(PasswordWidget, self)._toFieldValue(input)
def hidden(self):
raise NotImplementedError(
'Cannot get a hidden tag for a password field')
class FileWidget(TextWidget):
"""File Widget"""
type = 'file'
def __call__(self):
displayMaxWidth = self.displayMaxWidth or 0
hidden = renderElement(self.tag,
type='hidden',
name=self.name+".used",
id=self.name+".used",
value="")
if displayMaxWidth > 0:
elem = renderElement(self.tag,
type=self.type,
name=self.name,
id=self.name,
cssClass=self.cssClass,
size=self.displayWidth,
maxlength=displayMaxWidth,
extra=self.extra)
else:
elem = renderElement(self.tag,
type=self.type,
name=self.name,
id=self.name,
cssClass=self.cssClass,
size=self.displayWidth,
extra=self.extra)
return "%s %s" % (hidden, elem)
def _toFieldValue(self, input):
if input is None or input == '':
return self.context.missing_value
try:
seek = input.seek
read = input.read
except AttributeError as e:
raise ConversionError(_('Form input is not a file object'), e)
else:
seek(0)
data = read()
if data or getattr(input, 'filename', ''):
return data
else:
return self.context.missing_value
def hasInput(self):
return ((self.name+".used" in self.request.form)
or
(self.name in self.request.form)
)
class IntWidget(TextWidget):
"""Integer number widget.
Let's make sure that zeroes are rendered properly:
>>> from zope.schema import Int
>>> field = Int(__name__='foo', title=u'on')
>>> widget = IntWidget(field, None)
>>> widget.setRenderedValue(0)
>>> 'value="0"' in widget()
True
"""
displayWidth = 10
def _toFieldValue(self, input):
if input == self._missing:
return self.context.missing_value
else:
try:
return int(input)
except ValueError as v:
raise ConversionError(_("Invalid integer data"), v)
@implementer(IInputWidget)
class FloatWidget(TextWidget):
displayWidth = 10
def _toFieldValue(self, input):
if input == self._missing:
return self.context.missing_value
else:
try:
return float(input)
except ValueError as v:
raise ConversionError(_("Invalid floating point data"), v)
@implementer(IInputWidget)
class DecimalWidget(TextWidget):
displayWidth = 10
def _toFieldValue(self, input):
if input == self._missing:
return self.context.missing_value
else:
try:
return decimal.Decimal(input)
except decimal.InvalidOperation as v:
raise ConversionError(_("Invalid decimal data"), v)
def _toFormValue(self, value):
if value == self.context.missing_value:
value = self._missing
else:
return toUnicode(value)
class DatetimeWidget(TextWidget):
"""Datetime entry widget."""
displayWidth = 20
def _toFieldValue(self, input):
if input == self._missing:
return self.context.missing_value
else:
try:
# TODO: Currently datetimes return in local (server)
# time zone if no time zone information was given.
# Maybe offset-naive datetimes should be returned in
# this case? (DV)
return parseDatetimetz(input)
except (DateTimeError, ValueError, IndexError) as v:
raise ConversionError(_("Invalid datetime data"), v)
class DateWidget(DatetimeWidget):
"""Date entry widget.
"""
def _toFieldValue(self, input):
v = super(DateWidget, self)._toFieldValue(input)
if v != self.context.missing_value:
v = v.date()
return v
class DateI18nWidget(TextWidget):
"""I18n date entry widget.
The `displayStyle` attribute may be set to control the formatting of the
value.
`displayStyle` must be one of 'full', 'long', 'medium', 'short',
or None ('' is accepted an an alternative to None to support
provision of a value from ZCML).
"""
_category = "date"
displayWidth = 20
displayStyle = None
def _toFieldValue(self, input):
if input == self._missing:
return self.context.missing_value
else:
try:
formatter = self.request.locale.dates.getFormatter(
self._category, (self.displayStyle or None))
return formatter.parse(input)
except (DateTimeParseError, ValueError) as v:
raise ConversionError(_("Invalid datetime data"),
"%s (%r)" % (v, input))
def _toFormValue(self, value):
value = super(DateI18nWidget, self)._toFormValue(value)
if value:
formatter = self.request.locale.dates.getFormatter(
self._category, (self.displayStyle or None))
value = formatter.format(value)
return value
class DatetimeI18nWidget(DateI18nWidget):
"""I18n datetime entry widget.
The `displayStyle` attribute may be set to control the formatting of the
value.
`displayStyle` must be one of 'full', 'long', 'medium', 'short',
or None ('' is accepted an an alternative to None to support
provision of a value from ZCML).
NOTE: If you need timezone information you need to set `displayStyle`
to either 'long' or 'full' since other display styles just ignore it.
"""
_category = "dateTime"
class DateDisplayWidget(DisplayWidget):
"""Date display widget.
The `cssClass` and `displayStyle` attributes may be set to control
the formatting of the value.
`displayStyle` must be one of 'full', 'long', 'medium', 'short',
or None ('' is accepted an an alternative to None to support
provision of a value from ZCML).
"""
cssClass = "date"
displayStyle = None
_category = "date"
def __call__(self):
if self._renderedValueSet():
content = self._data
else:
content = self.context.default
if content == self.context.missing_value:
return ""
formatter = self.request.locale.dates.getFormatter(
self._category, (self.displayStyle or None))
content = formatter.format(content)
return renderElement("span", contents=escape(content),
cssClass=self.cssClass)
class DatetimeDisplayWidget(DateDisplayWidget):
"""Datetime display widget.
The `cssClass` and `displayStyle` attributes may be set to control
the formatting of the value.
`displayStyle` must be one of 'full', 'long', 'medium', 'short',
or None ('' is accepted an an alternative to None to support
provision of a value from ZCML).
"""
cssClass = "dateTime"
_category = "dateTime"
|