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- # beanvalidator-validation.coffee

- ¶

  Copyright 2012-2013 The Apache Software Foundation

  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/beanvalidator/beanvalidator-validation

  The awkward name is to accomidate the “docco” documentation tool; it doesn’t understand having the same named file in multiple folders. See https://github.com/jashkenas/docco/issues/201.

  Supports extra validations related to the beanvalidator module.

      define ["underscore", "t5/core/dom", "t5/core/events", "t5/core/utils", "t5/core/validation"],
        (_, dom, events, utils) ->

          rangeValue = (element, attribute, defaultValue) ->
            v = element.attr attribute
            if v is null
              defaultValue
            else
              parseInt v

          countOptions = (e) ->

- ¶

  A select that is used as part of a palette is different; the validation attributes are attached to the selected (right side)

            if e.findParent ".palette"
              e.element.options.length
            else

- ¶

  An ordinary

              _.filter(e.element.options, (o) -> o.selected).length

          doRangeValidate = (element, value, memo) ->
            min = rangeValue element, "data-range-min", 0
            max = rangeValue element, "data-range-max", Number.MAX_VALUE

- ¶

  If the translated value is still a string, and not a number, then the size refers to the length of the string, not its numeric value.

            if _.isString value
              value = value.length

            unless min <= value <= max
              memo.error = (element.attr "data-range-message") or "RANGE ERROR"
              return false

            return true

          dom.onDocument events.field.optional, "[data-optionality=prohibited]", (event, memo) ->

            unless utils.isBlank memo.value
              memo.error = (@attr "data-prohibited-message") or "PROHIBITED"
              return false

            return true

          dom.onDocument events.field.validate, "input[data-range-min], input[data-range-max], textarea[data-range-min], textarea[data-range-max]", (event, memo) ->
            doRangeValidate this, memo.translated, memo

          dom.onDocument events.field.validate, "select[data-range-min], select[data-range-max]", (event, memo) ->
            doRangeValidate this, (countOptions this), memo

          return