Class: InlineCssString::CSS

Inherits:
Object
  • Object
show all
Defined in:
lib/html_inline_css.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.inline_css(html) ⇒ Object 



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# File 'lib/html_inline_css.rb', line 385

def self.inline_css(html)
  @html_tags         = ["div","span","b","a","i","abbr","acronym","address","applet","area","article","aside","bdi","big","blockquote","caption","center","cite","code","col","colgroup","datalist","dd","del","details","dfn","dialog","dir","dl","dt","em","footer","form","frame","frameset","h1","h2","h3","h4","h5","h6","hr","iframe","img","input","ins","kbd","keygen","label","legend","li","link","main","map","mark","menu","menuitem","meter","nav","object","ol","optgroup","option","output","p","param","pre","progress","q","rp","rt","ruby","s","samp","section","select","small","source","strike","strong","sub","summary","sup","table","tbody","td","textarea","tfoot","th","thead","time","tr","track","tt","u","ul","var","wbr"]
  @classes         = Array.new
  @ids           = Array.new
  @html_without_skeleton   = html.gsub(/<style>(.*?)\n\t\t<\/style>|<style>(.*?)<\/style>|<html>|<\/html>|<head>|<\/head>|<body>|<\/body>|<script>|<\/script>/,"")
  @doc           = Nokogiri::HTML::DocumentFragment.parse(html)
  @doc_to        = Nokogiri::HTML::DocumentFragment.parse(@html_without_skeleton)
  get_all_class_and_ids
  add_style_tag_to_html(@doc_to)
  inline_css_from_style_tag(@doc)
  return @doc_to.to_html
end

Instance Method Details

#add_style(tag, arr) ⇒ Object 



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# File 'lib/html_inline_css.rb', line 38

def add_style(tag, arr)
  unless arr.nil?; 
    @doc_to.css("#{tag}").each do |y|
      unless y.nil? 
        y.to_s.scan(/style="([^"]*)"|style='([^"]*)'/).flatten.select{ |i| !i.nil?; unless i.nil?; y['style'] = "#{arr}#{i}" end }        
      end
    end
  end
end

#add_style_by_id_or_class(id_or_class_name, arr, id_or_class) ⇒ Object 



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# File 'lib/html_inline_css.rb', line 48

def add_style_by_id_or_class(id_or_class_name, arr, id_or_class)
  unless arr.nil?; 
    if id_or_class == "class"
      @html_tags.each do |tag|
        @doc_to.xpath("#{tag}[@class = '#{id_or_class_name}']").each do |y|
          unless y.nil? 
            y.to_s.scan(/style="([^"]*)"|style='([^"]*)'/).flatten.select{ |i| !i.nil?; unless i.nil?; y['style'] = "#{arr}#{i}" end }        
          end
        end
      end
    else
      @html_tags.each do |tag|
        @doc_to.xpath("#{tag}[@class = '#{id_or_class_name}']").each do |y|
          unless y.nil? 
            y.to_s.scan(/style="([^"]*)"|style='([^"]*)'/).flatten.select{ |i| !i.nil?; unless i.nil?; y['style'] = "#{arr}#{i}" end }        
          end
        end
      end
    end
  end
end

#add_style_tag_to_html(html) ⇒ Object 



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# File 'lib/html_inline_css.rb', line 26

def add_style_tag_to_html(html)
  @html_tags.each do |tag|
    html.css("#{tag}").each do |x| 
      unless x.nil? 
        unless x.to_s.match(/<#{Regexp.escape(tag)}\s(.*?)style=('|")(.*?)('|")(.*?)>/)
          x['style'] = ''
        end
      end
    end
  end
end

#get_all_class_and_ids ⇒ Object 



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# File 'lib/html_inline_css.rb', line 7

def get_all_class_and_ids
  @html_tags.each do |tag|
    @doc_to.css("#{tag}").each do |y|
      unless y.nil? 
        if @classes.empty?
          @classes << y["class"].to_s;
        else
          @classes.each do |css_class|; unless css_class == y["class"] || y["class"].nil?; @classes << y["class"].to_s; break; end; end;
        end
        if @ids.empty?
          @ids << y["id"].to_s;
        else
          @ids.each do |css_id|; unless css_id == y["id"] || y["id"].nil?; @ids << y["id"].to_s; break; end; end;
        end
      end
    end
  end
end

#inline_css_from_style_tag(html) ⇒ Object 



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# File 'lib/html_inline_css.rb', line 70

def inline_css_from_style_tag(html)
  
  style_tags = html.search('style').map { |n| n.inner_text }

  style_tags.each do |tag|

    # DIV
    tag.scan(/div(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("div", x) }

    # PARAGRAPH
    tag.scan(/p\s{(.*?)}|p{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("p", x) }

    # BOLD
    tag.scan(/b\s{(.*?)}|b{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("b", x) }

    # ITALIC
    tag.scan(/i{(.*?)}|i\s{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("i", x) }

    # SPAN
    tag.scan(/span(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("span", x) }

    # H1
    tag.scan(/h1(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h1", x) }

    # H2
    tag.scan(/h2(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h2", x) }

    # H3
    tag.scan(/h3(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h3", x) }

    # H4
    tag.scan(/h4(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h4", x) }

    # H5
    tag.scan(/h5(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h5", x) }

    # H6
    tag.scan(/h6(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("h6", x) }

    # A
    tag.scan(/a(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("a", x) }

    # ABBR
    tag.scan(/abbr(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("abbr", x) }

    # ACRONYM
    tag.scan(/acronym(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("acronym", x) }

    # ADDRESS
    tag.scan(/address(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("address", x) }

    # APPLET
    tag.scan(/applet(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("applet", x) }

    # AREA
    tag.scan(/area(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("area", x) }

    # ARTICLE
    tag.scan(/article(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("article", x) }

    # ASIDE
    tag.scan(/aside(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("aside", x) }

    # BDI
    tag.scan(/bdi(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("bdi", x) }

    # BIG
    tag.scan(/big(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("big", x) }

    # BLOCKQUOTE
    tag.scan(/blockquote(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("blockquote", x) }

    # CAPTION
    tag.scan(/caption(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("caption", x) }

    # CENTER
    tag.scan(/center(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("center", x) }

    # CITE
    tag.scan(/cite(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("cite", x) }

    # CODE
    tag.scan(/code(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("code", x) }

    # COL
    tag.scan(/col(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("col", x) }

    # COLGROUP
    tag.scan(/colgroup(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("colgroup", x) }

    # DATALIST
    tag.scan(/datalist(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("datalist", x) }

    # DD
    tag.scan(/dd(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dd", x) }

    # DEL
    tag.scan(/del(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("del", x) }

    # details
    tag.scan(/details(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("details", x) }

    # DFN
    tag.scan(/dfn(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dfn", x) }

    # DIALOG
    tag.scan(/dialog(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dialog", x) }

    # DIR
    tag.scan(/dir(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dir", x) }

    # DL
    tag.scan(/dl(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dl", x) }

    # DT
    tag.scan(/dt(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("dt", x) }

    # EM
    tag.scan(/em(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("em", x) }

    # FOOTER
    tag.scan(/footer(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("footer", x) }

    # FORM
    tag.scan(/form(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("form", x) }

    # FRAME
    tag.scan(/frame(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("frame", x) }

    # FRAMESET
    tag.scan(/frameset(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("frameset", x) }

    # HR
    tag.scan(/hr(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("hr", x) }

    # IFRAME
    tag.scan(/iframe(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("iframe", x) }

    # IMG
    tag.scan(/img(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("img", x) }

    # INPUT
    tag.scan(/input(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("input", x) }

    # INS
    tag.scan(/ins(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("ins", x) }

    # KBD
    tag.scan(/kbd(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("kbd", x) }

    # KEYGEN
    tag.scan(/keygen(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("keygen", x) }

    # LABEL
    tag.scan(/label(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("label", x) }

    # LEGEND
    tag.scan(/legend(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("legend", x) }

    # LI
    tag.scan(/li(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("li", x) }

    # LINK
    tag.scan(/link(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("link", x) }

    # MAIN
    tag.scan(/main(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("main", x) }

    # MAP
    tag.scan(/map(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("map", x) }

    # MARK
    tag.scan(/mark(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("mark", x) }

    # MENU
    tag.scan(/menu(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("menu", x) }

    # MENUITEM
    tag.scan(/menuitem(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("menuitem", x) }

    # METER
    tag.scan(/meter(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("meter", x) }

    # NAV
    tag.scan(/nav(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("nav", x) }

    # OBJECT
    tag.scan(/object(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("object", x) }

    # OL
    tag.scan(/ol(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("ol", x) }

    # OPTGROUP
    tag.scan(/optgroup(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("optgroup", x) }

    # OPTION
    tag.scan(/option(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("option", x) }

    # OUTPUT
    tag.scan(/output(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("output", x) }

    # PARAM
    tag.scan(/param(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("param", x) }

    # PRE
    tag.scan(/pre(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("pre", x) }

    # PROGRESS
    tag.scan(/progress(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("progress", x) }

    # Q
    tag.scan(/q{(.*?)}|q\s{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("q", x) }

    # RP
    tag.scan(/rp(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("rp", x) }

    # RT
    tag.scan(/rt(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("rt", x) }

    # RUBY
    tag.scan(/ruby(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("ruby", x) }

    # S
    tag.scan(/s{(.*?)}|s\s{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("ruby", x) }

    # SAMP
    tag.scan(/samp(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("samp", x) }

    # SECTION
    tag.scan(/section(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("section", x) }

    # SELECT
    tag.scan(/select(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("select", x) }

    # SMALL
    tag.scan(/small(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("small", x) }

    # SOURCE
    tag.scan(/source(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("source", x) }

    # STRIKE
    tag.scan(/strike(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("strike", x) }

    # STRONG
    tag.scan(/strong(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("strong", x) }

    # SUB
    tag.scan(/sub(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("sub", x) }

    # SUMMARY
    tag.scan(/summary(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("summary", x) }

    # SUP
    tag.scan(/sup(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("sup", x) }

    # TABLE
    tag.scan(/table(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("table", x) }

    # TBODY
    tag.scan(/tbody(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("tbody", x) }

    # TD
    tag.scan(/td(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("td", x) }

    # TEXTAREA
    tag.scan(/textarea(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("textarea", x) }

    # TFOOT
    tag.scan(/tfoot(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("tfoot", x) }

    # TH
    tag.scan(/th(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("th", x) }

    # THEAD
    tag.scan(/thead(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("thead", x) }

    # TIME
    tag.scan(/time(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("time", x) }

    # TR
    tag.scan(/tr(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("tr", x) }

    # TRACK
    tag.scan(/track(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("track", x) }

    # TT
    tag.scan(/tt(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("tt", x) }

    # U
    tag.scan(/u{(.*?)}|u\s{(.*?)}/).flatten.select{ |x| !x.nil?; add_style("u", x) }

    # UL
    tag.scan(/ul(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("ul", x) }

    # VAR
    tag.scan(/var(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("var", x) }

    # WBR
    tag.scan(/wbr(.*?){(.*?)}/).flatten.select{ |x| !x.nil?; add_style("wbr", x) }

    # CLASS
    @classes.each do |css_class|
      regex = /\.#{Regexp.escape(css_class)}\s{(.*?)}|\.#{Regexp.escape(css_class)}{(.*?)}/
      tag.scan(regex).flatten.select{ |x| !x.nil?; add_style_by_id_or_class(css_class, x, 'class'); }
    end

    # ID
    @ids.each do |css_id|
      regex = /\##{Regexp.escape(css_id)}\s{(.*?)}|\##{Regexp.escape(css_id)}{(.*?)}/
      tag.scan(regex).flatten.select{ |x| !x.nil?; add_style_by_id_or_class(css_id, x, 'id') }
    end

  end
end