| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http:#www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # ## t5/core/validation |
| # |
| # Support for Tapestry's built-in set of translators and validators. |
| # |
| define ["underscore", "./dom", "./events", "./utils", "./messages", "./fields"], |
| (_, dom, events, utils, messages) -> |
| |
| REGEXP_META = "t5:regular-expression" |
| |
| minus = messages "decimal-symbols.minus" |
| grouping = messages "decimal-symbols.group" |
| decimal = messages "decimal-symbols.decimal" |
| |
| # Formats a string for a localized number into a simple number. This uses localization |
| # information provided by `t5/core/messages` to remove grouping seperators and convert the |
| # minus sign and decimal seperator into english norms ("-" and ".") that are compatible |
| # with the `Number` constructor. May throw `Error` if the input can not be parsed. |
| # |
| # A little state machine does the parsing; the input may have a leading minus sign. |
| # It then consists primarily of numeric digits. At least one digit must occur |
| # between each grouping character. Grouping characters are not allowed |
| # after the decimal point. |
| # |
| # * input - input string to be converted |
| # * isInteger - restrict to integer values (decimal point not allowed) |
| parseNumber = (input, isInteger) -> |
| |
| canonical = "" |
| |
| accept = (ch) -> canonical += ch |
| |
| acceptDigitOnly = (ch) -> |
| if ch < "0" or ch > "9" |
| throw new Error messages "core-input-not-numeric" |
| |
| accept ch |
| return |
| |
| mustBeDigit = (ch) -> |
| acceptDigitOnly ch |
| return any |
| |
| decimalPortion = (ch) -> |
| acceptDigitOnly ch |
| return decimalPortion |
| |
| any = (ch) -> |
| switch ch |
| when grouping then return mustBeDigit |
| when decimal |
| if isInteger |
| throw new Error messages "core-input-not-integer" |
| |
| accept "." |
| return decimalPortion |
| else |
| mustBeDigit ch |
| |
| leadingMinus = (ch) -> |
| if ch is minus |
| accept "-" |
| return mustBeDigit |
| else |
| any ch |
| |
| state = leadingMinus |
| |
| for ch in utils.trim input |
| state = (state ch) |
| |
| return Number canonical |
| |
| matches = (input, re) -> |
| groups = input.match re |
| |
| # Unlike Java, there isn't an easy way to match the entire string. This |
| # gets the job done. |
| |
| return false if groups is null |
| |
| groups[0] is input |
| |
| emailRE = new RegExp("[A-Za-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[A-Za-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[A-Za-z0-9](?:[A-Za-z0-9-]*[A-Za-z0-9])?\\.)+[A-Za-z0-9](?:[A-Za-z0-9-]*[A-Za-z0-9])?") |
| |
| translate = (field, memo, isInteger) -> |
| try |
| result = parseNumber memo.value, isInteger |
| |
| if _.isNaN result |
| throw messages "core-input-not-numeric" |
| |
| memo.translated = result |
| catch e |
| memo.error = (field.attr "data-translation-message") or e.message or "ERROR" |
| return false |
| |
| dom.onDocument events.field.optional, "[data-optionality=required]", (event, memo) -> |
| |
| if utils.isBlank memo.value |
| memo.error = (@attr "data-required-message") or "REQUIRED" |
| |
| dom.onDocument events.field.translate, "[data-translation=numeric]", (event, memo) -> |
| translate this, memo, false |
| |
| dom.onDocument events.field.translate, "[data-translation=integer]", (event, memo) -> |
| translate this, memo, true |
| |
| dom.onDocument events.field.validate, "[data-validate-min-length]", (event, memo) -> |
| min = parseInt @attr "data-validate-min-length" |
| |
| if memo.translated.length < min |
| memo.error = (@attr "data-min-length-message") or "TOO SHORT" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-validate-max-length]", (event, memo) -> |
| max = parseInt @attr "data-validate-max-length" |
| |
| if memo.translated.length > max |
| memo.error = (@attr "data-max-length-message") or "TOO LONG" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-validate-max]", (event, memo) -> |
| max = parseInt @attr "data-validate-max" |
| |
| if memo.translated > max |
| memo.error = (@attr "data-max-message") or "TOO LARGE" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-validate-min]", (event, memo) -> |
| min = parseInt @attr "data-validate-min" |
| |
| if memo.translated < min |
| memo.error = (@attr "data-min-message") or "TOO SMALL" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-validate-email]", (event, memo) -> |
| |
| unless (matches memo.translated, emailRE) |
| memo.error = (@attr "data-email-message") or "INVALID EMAIL" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-validate-regexp]", (event, memo) -> |
| |
| # Cache the compiled regular expression. |
| re = @meta REGEXP_META |
| |
| unless re |
| re = new RegExp(@attr "data-validate-regexp") |
| @meta REGEXP_META, re |
| |
| unless (matches memo.translated, re) |
| memo.error = (@attr "data-regexp-message") or "INVALID" |
| return false |
| |
| dom.onDocument events.field.validate, "[data-expected-status=checked]", (event, memo) -> |
| |
| unless memo.value |
| memo.error = (@attr "data-checked-message") or "MUST BE CHECKED" |
| |
| dom.onDocument events.field.validate, "[data-expected-status=unchecked]", (event, memo) -> |
| |
| if memo.value |
| memo.error = (@attr "data-checked-message") or "MUST NOT BE CHECKED" |
| |
| # Export the number parser, just to be nice (and to support some testing). |
| return { parseNumber } |