diff options
Diffstat (limited to 'actionview/app/assets/javascripts/rails-ujs/features')
4 files changed, 232 insertions, 0 deletions
diff --git a/actionview/app/assets/javascripts/rails-ujs/features/confirm.coffee b/actionview/app/assets/javascripts/rails-ujs/features/confirm.coffee new file mode 100644 index 0000000000..72b5aaa218 --- /dev/null +++ b/actionview/app/assets/javascripts/rails-ujs/features/confirm.coffee @@ -0,0 +1,26 @@ +#= require_tree ../utils + +{ fire, stopEverything } = Rails + +Rails.handleConfirm = (e) -> + stopEverything(e) unless allowAction(this) + +# For 'data-confirm' attribute: +# - Fires `confirm` event +# - Shows the confirmation dialog +# - Fires the `confirm:complete` event +# +# Returns `true` if no function stops the chain and user chose yes `false` otherwise. +# Attaching a handler to the element's `confirm` event that returns a `falsy` value cancels the confirmation dialog. +# Attaching a handler to the element's `confirm:complete` event that returns a `falsy` value makes this function +# return false. The `confirm:complete` event is fired whether or not the user answered true or false to the dialog. +allowAction = (element) -> + message = element.getAttribute('data-confirm') + return true unless message + + answer = false + if fire(element, 'confirm') + try answer = confirm(message) + callback = fire(element, 'confirm:complete', [answer]) + + answer and callback diff --git a/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee b/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee new file mode 100644 index 0000000000..90aa3bdf0e --- /dev/null +++ b/actionview/app/assets/javascripts/rails-ujs/features/disable.coffee @@ -0,0 +1,82 @@ +#= 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) diff --git a/actionview/app/assets/javascripts/rails-ujs/features/method.coffee b/actionview/app/assets/javascripts/rails-ujs/features/method.coffee new file mode 100644 index 0000000000..d04d9414dd --- /dev/null +++ b/actionview/app/assets/javascripts/rails-ujs/features/method.coffee @@ -0,0 +1,34 @@ +#= require_tree ../utils + +{ stopEverything } = Rails + +# Handles "data-method" on links such as: +# <a href="/users/5" data-method="delete" rel="nofollow" data-confirm="Are you sure?">Delete</a> +Rails.handleMethod = (e) -> + link = this + method = link.getAttribute('data-method') + return unless method + + href = Rails.href(link) + csrfToken = Rails.csrfToken() + csrfParam = Rails.csrfParam() + form = document.createElement('form') + formContent = "<input name='_method' value='#{method}' type='hidden' />" + + if csrfParam? and csrfToken? and not Rails.isCrossDomain(href) + formContent += "<input name='#{csrfParam}' value='#{csrfToken}' type='hidden' />" + + # Must trigger submit by click on a button, else "submit" event handler won't work! + # https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement/submit + formContent += '<input type="submit" />' + + form.method = 'post' + form.action = href + form.target = link.target + form.innerHTML = formContent + form.style.display = 'none' + + document.body.appendChild(form) + form.querySelector('[type="submit"]').click() + + stopEverything(e) diff --git a/actionview/app/assets/javascripts/rails-ujs/features/remote.coffee b/actionview/app/assets/javascripts/rails-ujs/features/remote.coffee new file mode 100644 index 0000000000..852587042c --- /dev/null +++ b/actionview/app/assets/javascripts/rails-ujs/features/remote.coffee @@ -0,0 +1,90 @@ +#= require_tree ../utils + +{ + matches, getData, setData + fire, stopEverything + ajax, isCrossDomain + serializeElement +} = Rails + +# Checks "data-remote" if true to handle the request through a XHR request. +isRemote = (element) -> + value = element.getAttribute('data-remote') + value? and value isnt 'false' + +# Submits "remote" forms and links with ajax +Rails.handleRemote = (e) -> + element = this + + return true unless isRemote(element) + unless fire(element, 'ajax:before') + fire(element, 'ajax:stopped') + return false + + withCredentials = element.getAttribute('data-with-credentials') + dataType = element.getAttribute('data-type') or 'script' + + if matches(element, Rails.formSubmitSelector) + # memoized value from clicked submit button + button = getData(element, 'ujs:submit-button') + method = getData(element, 'ujs:submit-button-formmethod') or element.method + url = getData(element, 'ujs:submit-button-formaction') or element.getAttribute('action') or location.href + + # strip query string if it's a GET request + url = url.replace(/\?.*$/, '') if method.toUpperCase() is 'GET' + + if element.enctype is 'multipart/form-data' + data = new FormData(element) + data.append(button.name, button.value) if button? + else + data = serializeElement(element, button) + + setData(element, 'ujs:submit-button', null) + setData(element, 'ujs:submit-button-formmethod', null) + setData(element, 'ujs:submit-button-formaction', null) + else if matches(element, Rails.buttonClickSelector) or matches(element, Rails.inputChangeSelector) + method = element.getAttribute('data-method') + url = element.getAttribute('data-url') + data = serializeElement(element, element.getAttribute('data-params')) + else + method = element.getAttribute('data-method') + url = Rails.href(element) + data = element.getAttribute('data-params') + + ajax( + type: method or 'GET' + url: url + data: data + dataType: dataType + # stopping the "ajax:beforeSend" event will cancel the ajax request + beforeSend: (xhr, options) -> + if fire(element, 'ajax:beforeSend', [xhr, options]) + fire(element, 'ajax:send', [xhr]) + else + fire(element, 'ajax:stopped') + xhr.abort() + success: (args...) -> fire(element, 'ajax:success', args) + error: (args...) -> fire(element, 'ajax:error', args) + complete: (args...) -> fire(element, 'ajax:complete', args) + crossDomain: isCrossDomain(url) + withCredentials: withCredentials? and withCredentials isnt 'false' + ) + stopEverything(e) + +Rails.formSubmitButtonClick = (e) -> + button = this + form = button.form + return unless form + # Register the pressed submit button + setData(form, 'ujs:submit-button', name: button.name, value: button.value) if button.name + # Save attributes from button + setData(form, 'ujs:formnovalidate-button', button.formNoValidate) + setData(form, 'ujs:submit-button-formaction', button.getAttribute('formaction')) + setData(form, 'ujs:submit-button-formmethod', button.getAttribute('formmethod')) + +Rails.handleMetaClick = (e) -> + link = this + method = (link.getAttribute('data-method') or 'GET').toUpperCase() + data = link.getAttribute('data-params') + metaClick = e.metaKey or e.ctrlKey + e.stopImmediatePropagation() if metaClick and method is 'GET' and not data |