module ActionControllerAdditions
def self.included(controller)
controller.class_eval do
# override in your controller
def page_title
nil
end
# override in your controller
def ajaxify_extra_content
''
end
private
def ajaxified?
request.xhr? and params[:ajaxified]
end
def render *args, &block
if ajaxified?
args = _normalize_args(*args, &block)
layout = args[:layout] || current_layout
layout = (layout == 'application' or layout == true or layout == false) ? false : layout
args[:layout] = layout
flashes = {}
flash.keys.each do |key|
flashes[key] = flash[key]
flash[key] = nil
end
extra_content = ajaxify_extra_content
super args
# Store current path for redirect url changes. Also used to remove the ajaxify parameter that gets added to some auto generated urls
# like e.g. pagination links see (ajaxify.js -> on_ajaxify_success())
#
current_url_tag = view_context.content_tag(:span, remove_ajaxify_params(request.fullpath),
id: 'ajaxify_location')
response_body[0] += view_context.content_tag(:div, current_url_tag + extra_content,
id: 'ajaxify_content', style: 'display:none',
data: { page_title: page_title,
flashes: flashes.to_json } )
response.body = response_body[0]
response.headers['Ajaxify-Assets-Digest'] = ajaxify_assets_digest
return
end
super
ajaxify_add_meta_tag( ajaxify_assets_digest_meta_tag ) if !request.xhr?
# Correcting urls for non history api browsers wont work for post requests so add a meta tag to the response body to communicate this to
# the ajaxify javascript
ajaxify_add_meta_tag( view_context.tag(:meta, name: 'ajaxify:dont_correct_url', content: 'true') ) if request.post? and not request.xhr?
return
end
def current_layout
return @current_layout if @current_layout
@current_layout = _layout
return @current_layout if @current_layout == false
@current_layout = File.basename(@current_layout.identifier).split('.').first unless @current_layout.instance_of? String
@current_layout
end
def redirect_to(options = {}, response_status = {})
request.referer.sub!('#/', '') if request.referer # make redirect to back work for browsers without history api
super
ajaxify_params = "ajaxified=true&ajaxify_redirect=true"
self.location += "#{self.location =~ /\?/ ? '&' : '?'}#{ajaxify_params}" if request.xhr? # to avoid the full layout from being rendered
end
def ajaxify_redirect_to url
render inline: "<%= javascript_tag(\"Ajaxify.load({url: '#{url}'});\") %>", layout: true
end
def remove_ajaxify_params url
url.sub(/\?ajaxified=true&(.*)/, '?\1').
sub(/\?ajaxify_redirect=true&(.*)/, '?\1').
sub(/(&|\?)ajaxified=true/, '').
sub(/(&|\?)ajaxify_redirect=true/, '')
end
# Meta tag for asset change detection - inspired by wiselinks
#
def ajaxify_assets_digest_meta_tag
view_context.tag(:meta, name: 'ajaxify:assets-digest', content: ajaxify_assets_digest)
end
def ajaxify_assets_digest
digests = Rails.application.config.assets.digests
digests ? Digest::MD5.hexdigest(digests.values.join) : ''
end
def ajaxify_add_meta_tag meta_tag
response.body = response_body[0].sub('<head>', "<head>\n #{meta_tag}")
end
end
end
end