Module: JqrHelpers::Helpers

Defined in:
lib/jqr-helpers/helpers.rb

Defined Under Namespace

Classes: PanelRenderer

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

._random_string ⇒ String

Generate a random string for IDs.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 403

def self._random_string
  SecureRandom.hex(16)
end

Instance Method Details

#ajax_change(url, options = {}, &block) ⇒ String

Observe a field for changes. On change, post to the Ajax URL and calculate callbacks.

Parameters:

  • url (String) —

    the URL to send to.

  • options (Hash) (defaults to: {}) —

    Ajax options - see above.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 393

def ajax_change(url, options={}, &block)
  options[:class] = 'ujs-ajax-change'
  options = _process_ajax_options(options)
  options['data-url'] = url
  content_tag :span, options, &block
end

#button_to_ajax(body, url, options = {}) ⇒ String

Create a button that fires off a jQuery Ajax request. This does not use button_to, so it can be used inside forms.

Parameters:

  • body (String) —

    the text/content that goes inside the tag.

  • url (String) —

    the URL to connect to.

  • options (Hash) (defaults to: {}) —

    Ajax options - see above.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 195

def button_to_ajax(body, url, options={})

  # Specifically do not add data-remote
  options[:'data-method'] = options.delete(:method)
  options[:class] ||= ''
  options[:class] << ' ujs-ajax-button'
  options[:type] = 'button'
  options[:'data-url'] = url
  if options.key?(:confirm)
    options[:'data-confirm'] = options.delete(:confirm)
  end
  options.merge!(_process_ajax_options(options))

  content_tag :button, body, options
end

#button_to_dialog(dialog_id, html_content, dialog_options = {}, html_options = {}) ⇒ String

Add a button to create a jQuery dialog.

Parameters:

  • dialog_id (String) —

    The ID of the element to put in the dialog.

  • html_content (String) —

    Text or HTML tags to use as the button body.

  • html_options (Hash) (defaults to: {}) —

    Attributes to put on the button tag.

  • dialog_options (Hash) (defaults to: {}) —

    Dialog options as described in the readme.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 102

def button_to_dialog(dialog_id, html_content, dialog_options={},
  html_options={})
  link_to_dialog(dialog_id, html_content, dialog_options,
               html_options.merge(:tag_name => 'button', :type => 'button'))
end

#button_to_external(content, url, options = {}) ⇒ Object

This is identical to the built-in Rails button_to() in every way except that it will work inside an existing form. Instead, it appends a form to the body, and uses a click handler to submit it. This does not support the :remote option - instead, use #button_to_ajax. This supports the :target option to pass to the form.

Parameters:

  • content (String) —

    the text of the button.

  • url (String|Hash) —

    the URL (or URL hash) the button should go to.

  • options (Hash) (defaults to: {}) —

    HTML Options to pass to the button.



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# File 'lib/jqr-helpers/helpers.rb', line 359

def button_to_external(content, url, options={})
  options[:disabled] = 'disabled' if options.delete(:disabled)
  method = (options.delete(:method) || 'post').to_s.downcase
  confirm = options.delete(:confirm)
  disable_with = options.delete(:disable_with)

  token_name = token_value = nil
  if %w(post put).include?(method) && protect_against_forgery?
    token_name = request_forgery_protection_token.to_s
    token_value = form_authenticity_token
  end
  url = url_for(url) if url.is_a?(Hash)

  options[:type] = 'button'
  options['data-confirm'] = confirm if confirm
  options['data-disable-with'] = disable_with if disable_with
  options['data-method'] = method if method
  options['data-url'] = url
  options[:'data-target'] = options.delete(:target)
  options[:class] ||= ''
  options[:class] << ' ujs-external-button'
  if token_name
    options['data-token-name'] = token_name
    options['data-token-value'] = token_value
  end

  content_tag(:button, content, options)
end

#button_to_remote_dialog(url, html_content, dialog_options = {}, html_options = {}) ⇒ String

Same as button_to_dialog, but loads content from a remote URL instead of using content already on the page.

Parameters:

  • url (String) —

    The URL to load the content from.

  • html_content (String) —

    Text or HTML tags to use as the button body.

  • dialog_options (Hash) (defaults to: {}) —

    Dialog options as described in the readme.

  • html_options (Hash) (defaults to: {}) —

    Attributes to put on the button tag.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 156

def button_to_remote_dialog(url, html_content, dialog_options={},
  html_options={})
  link_to_remote_dialog(url, html_content, dialog_options,
               html_options.merge(:tag_name => 'button', :type => 'button'))
end

#buttonset(name, values, selected = nil, html_options = {}) ⇒ Object

Print a button set. Each button will be a radio button, and the group will then be passed into jQuery’s buttonset() method.

Parameters:

  • name (String) —

    the name of the form element.

  • values (Hash<String, String>) —

    a hash of value => label.

  • selected (String) (defaults to: nil) —

    the selected value, if any.

  • html_options (Hash) (defaults to: {}) —

    a set of options that will be passed into the parent div tag.



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# File 'lib/jqr-helpers/helpers.rb', line 309

def buttonset(name, values, selected=nil, html_options={})
  html_options[:class] ||= ''
  html_options[:class] << ' ujs-button-set'
  content = values.inject('') do |sum, (value, label)|
    sum += radio_button_tag(name, value, selected == value) +
      label_tag("#{name}_#{value}", label)
  end
  content_tag(:div, raw(content), html_options)
end

#confirm_button(html_content, url, message, html_options = {}) ⇒ Object

Create a button that prompts a jQuery confirm dialog, which is nicer-looking than the default window.confirm() which is used by Rails. Done using button_to, so note that a form element will be added.

Parameters:

  • html_content (String) —

    the text or content to go inside the button

  • url (String) —

    the URL which the button should go to if confirmed

  • message (String) —

    the confirm message to prompt

  • html_options (Hash) (defaults to: {}) —

    HTML attributes.



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# File 'lib/jqr-helpers/helpers.rb', line 115

def confirm_button(html_content, url, message, html_options={})
  button_to html_content, url, html_options.merge(
    :'data-message' => simple_format(message), # turn text into HTML
    :'data-ujs-confirm' => true
  )
end

#date_picker_tag(name, value = Date.today, options = {}, html_options = {}) ⇒ String

Create a date picker field. The attributes given are passed to text_field_tag. There is a special option :format - this expects a Ruby style date format. It will format both the initial display of the date and the jQuery date format to be the same.

Parameters:

  • name (String) —

    the name of the form element.

  • value (Date) (defaults to: Date.today) —

    the initial value.

  • options (Hash) (defaults to: {}) —

    options to be passed to datepicker().

  • html_options (Hash) (defaults to: {}) —

    options to be passed to text_field_tag.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 292

def date_picker_tag(name, value=Date.today, options={}, html_options={})
  format = options.delete(:format) || '%Y-%m-%d'
  value = value.strftime(format) if value.present?
  options[:dateFormat] = _map_date(format)
  html_options[:'data-date-options'] = options.to_json
  html_options[:class] ||= ''
  html_options[:class] << ' ujs-date-picker'
  text_field_tag(name, value, html_options)
end

#dialog_title(content) ⇒ Object

Set the dialog title from inside the dialog itself. This prints a hidden div which is read by the UJS callback to set the title.



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# File 'lib/jqr-helpers/helpers.rb', line 164

def dialog_title(content)
  content_tag :div, content, :class => 'ujs-dialog-title-hidden'
end

#form_for_ajax(record, options = {}, &block) ⇒ String

Identical to form_tag_ajax except that this passes the given model into form_for instead of form_tag.

Parameters:

  • record (ActiveRecord::Base)
  • options (Hash) (defaults to: {})

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 232

def form_for_ajax(record, options={}, &block)
  options[:remote] = true
  # note that we only override if nil - not false
  options[:close_dialog] = true if options[:close_dialog].nil?
  options[:use_dialog_opener] = true if options[:use_dialog_opener].nil?
  options[:html] ||= {}
  options[:html].merge!(_process_ajax_options(options))

  form_for record, options, &block

end

#form_tag_ajax(url, options = {}, &block) ⇒ String

Create a form tag that submits to an Ajax request. Basically a wrapper for form_tag with :remote => true.

Parameters:

  • url (String) —

    the URL to connect to.

  • options (Hash) (defaults to: {}) —

    Ajax options - see above.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 216

def form_tag_ajax(url, options={}, &block)

  options[:remote] = true
  # note that we only override if nil - not false
  options[:close_dialog] = true if options[:close_dialog].nil?
  options[:use_dialog_opener] = true if options[:use_dialog_opener].nil?
  options.merge!(_process_ajax_options(options))

  form_tag url, options, &block
end

#link_to_ajax(body, url, options = {}, &block) ⇒ String

Create a link that fires off a jQuery Ajax request. This is basically a wrapper around link_to :remote => true. If a block is given, url and options will be shifted left by 1 position and the block contents will be used for the body.

Parameters:

  • body (String) —

    the text/content that goes inside the tag.

  • url (String) —

    the URL to connect to.

  • options (Hash) (defaults to: {}) —

    Ajax options - see above.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 176

def link_to_ajax(body, url, options={}, &block)
  if block_given?
    options = url
    url = body
    body = capture(&block)
  end

  options[:remote] = true
  options.merge!(_process_ajax_options(options))

  link_to body, url, options
end

#link_to_dialog(dialog_id, html_content = '', dialog_options = {}, html_options = {}, &block) ⇒ String

Add a link to create a jQuery dialog. If a block is given, dialog_options and html_options are shifted left by 1 and the block is used as the html_content.

Parameters:

  • dialog_id (String) —

    The ID of the element to put in the dialog.

  • html_content (String) (defaults to: '') —

    Text or HTML tags to use as the link body.

  • dialog_options (Hash) (defaults to: {}) —

    Dialog options as described in the readme.

  • html_options (Hash) (defaults to: {}) —

    Attributes to put on the link tag. There is a special :tag_name option that can be used to change the tag being created. Default is :a, but you can pass :div, :span, etc.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 58

def link_to_dialog(dialog_id, html_content='', dialog_options={},
  html_options={}, &block)

  if block_given?
    html_options = dialog_options
    dialog_options = html_content.presence || {}
    html_content = capture(&block)
  end

  html_options[:class] ||= ''
  html_options[:class] << ' ujs-dialog'
  html_options[:'data-dialog-id'] = dialog_id
  html_options[:'data-close-x'] = dialog_options[:close_x]

  tag_name = html_options.delete(:tag_name) || :a
  html_options[:href] = '#' if tag_name == :a

  dialog_options[:dialogClass] ||= ''
  if dialog_options[:title] == false # not nil or blank
    dialog_options[:dialogClass] << ' ujs-dialog-modal no-title'
  else
    dialog_options[:title] ||= 'Dialog'
    dialog_options[:dialogClass] << ' ujs-dialog-modal'
  end
  dialog_options[:modal] = true
  dialog_options[:width] ||= 'auto'
  if dialog_options.delete(:default_buttons)
    dialog_options[:buttons] = {
      :OK => 'submit',
      :Cancel => 'close'
    }
  end

  html_options[:'data-dialog-options'] = dialog_options.to_json

  content_tag tag_name, html_content, html_options
end

#link_to_remote_dialog(url, html_content, dialog_options = {}, html_options = {}, &block) ⇒ String

Same as link_to_dialog, but loads content from a remote URL instead of using content already on the page. If a block is given, dialog_options and html_options are shifted left by 1 and the block is used as the html_content.

Parameters:

  • url (String) —

    The URL to load the content from.

  • html_content (String) —

    Text or HTML tags to use as the link body.

  • dialog_options (Hash) (defaults to: {}) —

    Dialog options as described in the readme.

  • html_options (Hash) (defaults to: {}) —

    Attributes to put on the link tag. There is a special :tag_name option that can be used to change the tag being created. Default is :a, but you can pass :div, :span, etc.

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 133

def link_to_remote_dialog(url, html_content, dialog_options={},
  html_options={}, &block)

  if block_given?
    html_options = dialog_options
    dialog_options = html_content
    html_content = capture(&block)
  end
  html_options[:'data-throbber'] =
    dialog_options.delete(:throbber) || 'large'

  html_options[:'data-dialog-url'] = url
  link_to_dialog(Helpers._random_string, html_content,
                 dialog_options, html_options)
end

#quick_radio_set(name, values, selected = nil, html_options = {}) ⇒ Object

Prints a button set which pretends to be a jQuery buttonset() and is specifically for radio buttons. The main difference is that this will load much faster in DOM-heavy pages (e.g. in tables where you may have hundreds of buttons) and it does not have most of the frills of jQuery button(), such as allowing disabling.

Parameters:

  • name (String) —

    the name of the form element.

  • values (Hash<String, String>) —

    a hash of value => label.

  • selected (String) (defaults to: nil) —

    the selected value, if any.

  • html_options (Hash) (defaults to: {}) —

    a set of options that will be passed into the parent div tag.



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# File 'lib/jqr-helpers/helpers.rb', line 329

def quick_radio_set(name, values, selected=nil, html_options={})
  html_options[:class] ||= ''
  html_options[:class] << ' ujs-quick-buttonset ui-buttonset'
  content = ''
  last_key = values.keys.length - 1
  values.each_with_index do |(value, label), i|
    content << radio_button_tag(name, value, selected == value,
                            :class => 'ui-helper-hidden-accessible')
    label_class = 'ui-button ui-widget ui-state-default ui-button-text-only'
    label_class << ' ui-state-active' if selected == value
    label_class << ' ui-corner-left' if i == 0
    label_class << ' ui-corner-right' if i == last_key
    content << label_tag("#{name}_#{value}", :class => label_class,
                         :role => 'button',
                         :'aria-disabled' => 'false') do
      content_tag :span, label, :class => 'ui-button-text'
    end
  end
  content_tag(:div, raw(content), html_options)

end

#tab_container(options = {}, html_options = {}, &block) ⇒ Object

Print a tab container. This expects a block, which will be passed a PanelRenderer object. Panels can be local (with content) or remote (with a URL).

Examples:

<%= tab_container {:collapsible => true}, {:class => 'my-tabs}' do |r| %>
  <% r.panel 'Tab 1' do %>
    My tab content here
  <% end %>
  <% r.panel 'Tab 2', 'http://www.foobar.com/' %>
<% end %>

Parameters:

  • options (Hash) (defaults to: {}) —

    options to pass to the jQuery tabs() method.

  • html_options (Hash) (defaults to: {}) —

    options to pass to the tab container element itself.



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# File 'lib/jqr-helpers/helpers.rb', line 257

def tab_container(options={}, html_options={}, &block)
  renderer = PanelRenderer.new
  capture(renderer, &block)
  html_options[:class] ||= ''
  html_options[:class] << ' ujs-tab-container'
  html_options[:'data-tab-options'] = options.to_json
  content_tag(:div, html_options) do
    s = content_tag :ul do
      s2 = ''
      renderer.panels.each do |panel|
        s2 << content_tag(:li) do
          link_to panel[:title], panel[:url]
        end
      end
      raw s2
    end
    s3 = renderer.panels.inject('') do |sum, panel|
      if panel[:options][:id]
        sum = sum + content_tag(:div, panel[:options], &panel[:content])
      end
      sum
    end
    s + raw(s3)
  end
end

#will_paginate_ajax(collection, to_update, options = {}) ⇒ String

Create a will_paginate pagination interface which runs via Ajax. If will_paginate is not in the Gemfile or gem environment, this will throw an error.

Parameters:

  • collection (Array|ActiveRecord::Relation) —

    the will_paginate collection.

  • to_update (String) —

    the selector to use to update the content - either a “.class” or “#id” selector.

  • options (Hash) (defaults to: {}) —

    options passed through to will_paginate

Returns:

  • (String) 


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# File 'lib/jqr-helpers/helpers.rb', line 475

def will_paginate_ajax(collection, to_update, options={})
  if defined?(AjaxLinkRenderer)
    options[:'data-type'] = 'html'
    options[:'data-result-method'] = 'update'
    options[:'data-selector'] = to_update
    options[:'data-remote'] = true
    options[:'data-scroll-to'] = true
    options[:'data-throbber'] = options[:throbber] || 'large'
    options[:renderer] = AjaxLinkRenderer
    will_paginate(collection, options)
  else
    raise 'will_paginate not installed!'
  end
end