diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/tag_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/tag_helper.rb | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/actionpack/lib/action_view/helpers/tag_helper.rb b/actionpack/lib/action_view/helpers/tag_helper.rb deleted file mode 100644 index 8c7524e795..0000000000 --- a/actionpack/lib/action_view/helpers/tag_helper.rb +++ /dev/null @@ -1,173 +0,0 @@ -require 'active_support/core_ext/string/output_safety' -require 'set' - -module ActionView - # = Action View Tag Helpers - module Helpers #:nodoc: - # Provides methods to generate HTML tags programmatically when you can't use - # a Builder. By default, they output XHTML compliant tags. - module TagHelper - extend ActiveSupport::Concern - include CaptureHelper - - BOOLEAN_ATTRIBUTES = %w(disabled readonly multiple checked autobuffer - autoplay controls loop selected hidden scoped async - defer reversed ismap seemless muted required - autofocus novalidate formnovalidate open pubdate itemscope).to_set - BOOLEAN_ATTRIBUTES.merge(BOOLEAN_ATTRIBUTES.map {|attribute| attribute.to_sym }) - - PRE_CONTENT_STRINGS = { - :textarea => "\n" - } - - # Returns an empty HTML tag of type +name+ which by default is XHTML - # compliant. Set +open+ to true to create an open tag compatible - # with HTML 4.0 and below. Add HTML attributes by passing an attributes - # hash to +options+. Set +escape+ to false to disable attribute value - # escaping. - # - # ==== Options - # You can use symbols or strings for the attribute names. - # - # Use +true+ with boolean attributes that can render with no value, like - # +disabled+ and +readonly+. - # - # HTML5 <tt>data-*</tt> attributes can be set with a single +data+ key - # pointing to a hash of sub-attributes. - # - # To play nicely with JavaScript conventions sub-attributes are dasherized. - # For example, a key +user_id+ would render as <tt>data-user-id</tt> and - # thus accessed as <tt>dataset.userId</tt>. - # - # Values are encoded to JSON, with the exception of strings and symbols. - # This may come in handy when using jQuery's HTML5-aware <tt>.data()</tt> - # from 1.4.3. - # - # ==== Examples - # tag("br") - # # => <br /> - # - # tag("br", nil, true) - # # => <br> - # - # tag("input", type: 'text', disabled: true) - # # => <input type="text" disabled="disabled" /> - # - # tag("img", src: "open & shut.png") - # # => <img src="open & shut.png" /> - # - # tag("img", {src: "open & shut.png"}, false, false) - # # => <img src="open & shut.png" /> - # - # tag("div", data: {name: 'Stephen', city_state: %w(Chicago IL)}) - # # => <div data-name="Stephen" data-city-state="["Chicago","IL"]" /> - def tag(name, options = nil, open = false, escape = true) - "<#{name}#{tag_options(options, escape) if options}#{open ? ">" : " />"}".html_safe - end - - # Returns an HTML block tag of type +name+ surrounding the +content+. Add - # HTML attributes by passing an attributes hash to +options+. - # Instead of passing the content as an argument, you can also use a block - # in which case, you pass your +options+ as the second parameter. - # Set escape to false to disable attribute value escaping. - # - # ==== Options - # The +options+ hash is used with attributes with no value like (<tt>disabled</tt> and - # <tt>readonly</tt>), which you can give a value of true in the +options+ hash. You can use - # symbols or strings for the attribute names. - # - # ==== Examples - # content_tag(:p, "Hello world!") - # # => <p>Hello world!</p> - # content_tag(:div, content_tag(:p, "Hello world!"), class: "strong") - # # => <div class="strong"><p>Hello world!</p></div> - # content_tag("select", options, multiple: true) - # # => <select multiple="multiple">...options...</select> - # - # <%= content_tag :div, class: "strong" do -%> - # Hello world! - # <% end -%> - # # => <div class="strong">Hello world!</div> - def content_tag(name, content_or_options_with_block = nil, options = nil, escape = true, &block) - if block_given? - options = content_or_options_with_block if content_or_options_with_block.is_a?(Hash) - content_tag_string(name, capture(&block), options, escape) - else - content_tag_string(name, content_or_options_with_block, options, escape) - end - end - - # Returns a CDATA section with the given +content+. CDATA sections - # are used to escape blocks of text containing characters which would - # otherwise be recognized as markup. CDATA sections begin with the string - # <tt><![CDATA[</tt> and end with (and may not contain) the string <tt>]]></tt>. - # - # cdata_section("<hello world>") - # # => <![CDATA[<hello world>]]> - # - # cdata_section(File.read("hello_world.txt")) - # # => <![CDATA[<hello from a text file]]> - # - # cdata_section("hello]]>world") - # # => <![CDATA[hello]]]]><![CDATA[>world]]> - def cdata_section(content) - splitted = content.gsub(']]>', ']]]]><![CDATA[>') - "<![CDATA[#{splitted}]]>".html_safe - end - - # Returns an escaped version of +html+ without affecting existing escaped entities. - # - # escape_once("1 < 2 & 3") - # # => "1 < 2 & 3" - # - # escape_once("<< Accept & Checkout") - # # => "<< Accept & Checkout" - def escape_once(html) - ERB::Util.html_escape_once(html) - end - - private - - def content_tag_string(name, content, options, escape = true) - tag_options = tag_options(options, escape) if options - content = ERB::Util.h(content) if escape - "<#{name}#{tag_options}>#{PRE_CONTENT_STRINGS[name.to_sym]}#{content}</#{name}>".html_safe - end - - def tag_options(options, escape = true) - return if options.blank? - attrs = [] - options.each_pair do |key, value| - if key.to_s == 'data' && value.is_a?(Hash) - value.each_pair do |k, v| - attrs << data_tag_option(k, v, escape) - end - elsif BOOLEAN_ATTRIBUTES.include?(key) - attrs << boolean_tag_option(key) if value - elsif !value.nil? - attrs << tag_option(key, value, escape) - end - end - " #{attrs.sort * ' '}".html_safe unless attrs.empty? - end - - def data_tag_option(key, value, escape) - key = "data-#{key.to_s.dasherize}" - unless value.is_a?(String) || value.is_a?(Symbol) || value.is_a?(BigDecimal) - value = value.to_json - end - tag_option(key, value, escape) - end - - def boolean_tag_option(key) - %(#{key}="#{key}") - end - - def tag_option(key, value, escape) - value = value.join(" ") if value.is_a?(Array) - value = ERB::Util.h(value) if escape - %(#{key}="#{value}") - end - end - end -end |