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-rw-r--r--actionview/app/assets/javascripts/rails-ujs/features/disable.coffee82
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diff --git a/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee b/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee
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+++ b/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee
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+#= require_tree ../utils
+
+{ matches, getData, setData, stopEverything, formElements } = Rails
+
+Rails.handleDisabledElement = (e) ->
+ element = this
+ stopEverything(e) if element.disabled
+
+# Unified function to enable an element (link, button and form)
+Rails.enableElement = (e) ->
+ element = if e instanceof Event then e.target else e
+ if matches(element, Rails.linkDisableSelector)
+ enableLinkElement(element)
+ else if matches(element, Rails.buttonDisableSelector) or matches(element, Rails.formEnableSelector)
+ enableFormElement(element)
+ else if matches(element, Rails.formSubmitSelector)
+ enableFormElements(element)
+
+# Unified function to disable an element (link, button and form)
+Rails.disableElement = (e) ->
+ element = if e instanceof Event then e.target else e
+ if matches(element, Rails.linkDisableSelector)
+ disableLinkElement(element)
+ else if matches(element, Rails.buttonDisableSelector) or matches(element, Rails.formDisableSelector)
+ disableFormElement(element)
+ else if matches(element, Rails.formSubmitSelector)
+ disableFormElements(element)
+
+# Replace element's html with the 'data-disable-with' after storing original html
+# and prevent clicking on it
+disableLinkElement = (element) ->
+ replacement = element.getAttribute('data-disable-with')
+ if replacement?
+ setData(element, 'ujs:enable-with', element.innerHTML) # store enabled state
+ element.innerHTML = replacement
+ element.addEventListener('click', stopEverything) # prevent further clicking
+ setData(element, 'ujs:disabled', true)
+
+# Restore element to its original state which was disabled by 'disableLinkElement' above
+enableLinkElement = (element) ->
+ originalText = getData(element, 'ujs:enable-with')
+ if originalText?
+ element.innerHTML = originalText # set to old enabled state
+ setData(element, 'ujs:enable-with', null) # clean up cache
+ element.removeEventListener('click', stopEverything) # enable element
+ setData(element, 'ujs:disabled', null)
+
+# Disables form elements:
+# - Caches element value in 'ujs:enable-with' data store
+# - Replaces element text with value of 'data-disable-with' attribute
+# - Sets disabled property to true
+disableFormElements = (form) ->
+ formElements(form, Rails.formDisableSelector).forEach(disableFormElement)
+
+disableFormElement = (element) ->
+ replacement = element.getAttribute('data-disable-with')
+ if replacement?
+ if matches(element, 'button')
+ setData(element, 'ujs:enable-with', element.innerHTML)
+ element.innerHTML = replacement
+ else
+ setData(element, 'ujs:enable-with', element.value)
+ element.value = replacement
+ element.disabled = true
+ setData(element, 'ujs:disabled', true)
+
+# Re-enables disabled form elements:
+# - Replaces element text with cached value from 'ujs:enable-with' data store (created in `disableFormElements`)
+# - Sets disabled property to false
+enableFormElements = (form) ->
+ formElements(form, Rails.formEnableSelector).forEach(enableFormElement)
+
+enableFormElement = (element) ->
+ originalText = getData(element, 'ujs:enable-with')
+ if originalText?
+ if matches(element, 'button')
+ element.innerHTML = originalText
+ else
+ element.value = originalText
+ setData(element, 'ujs:enable-with', null) # clean up cache
+ element.disabled = false
+ setData(element, 'ujs:disabled', null)