class Hermes::Css

Example¶ ↑

require "hermes/css"
require "hermes/color"
class MyCss < Css

  COL1  = "904f02".to_rgb
  COL2  = COL1.edit_hsv { |h,s,v| [h+15,s,v] }

  ATTR_COL1  = { color: COL1 }
  ATTR_COL2  = { color: COL2 }
  ATTR_DECON = { text_decoration: "none" }
  ATTR_DECOU = { text_decoration: "underline" }

  def build
    a ":link",    ATTR_COL1, ATTR_DECON
    a ":visited", ATTR_COL2, ATTR_DECON
    a ":active", ATTR_COL1, ATTR_DECON
    a ":focus",  ATTR_COL1, ATTR_DECOU
    space

    body "#dummy" do
      properties :background_color => "f7f7f7".to_rgb
      div ".child", :background_color => "e7e7e7".to_rgb
      @b = selector
      td do
        @bt = selector
      end
    end
    selectors @b, @bt, :fon_size => :large
  end
end
Hermes::Css.document

Constants

INDENT

Attributes

main[RW]

Public Class Methods

new() click to toggle source

# File lib/hermes/css.rb, line 110
def initialize
  @selector = Selector.new
end

Public Instance Methods

comment(str) click to toggle source

# File lib/hermes/css.rb, line 126
def comment str
  @out << "/*"
  str = mask_comment str
  ml = str =~ %r(#$/)
  if ml then
    @out << $/
    str.each_line { |l|
      l.chomp!
      @out << " * " << l << $/
    }
  else
    @out << " " << str
  end
  @out << " */"
  ml and @out << $/
end

document(out = nil) click to toggle source

# File lib/hermes/css.rb, line 51
def document out = nil
  open_out out do |o|
    @main.new.document o
  end
end

inherited(cls) click to toggle source

# File lib/hermes/css.rb, line 48
def inherited cls
  Css.main = cls
end

method_missing(sym, *args, &block) click to toggle source

Calls superclass method

# File lib/hermes/css.rb, line 166
def method_missing sym, *args, &block
  if Html::TAGS[ sym] then
    if args.any? and not Hash === args.first then
      sub = args.shift
    end
    if args.any? and not Hash === args.first then
      desc, sub = sub, args.shift
    elsif sub !~ /[a-z]/i or Symbol === sub then
      desc, sub = sub, nil
    end
    tag desc, sym, sub, *args, &block
  else
    super
  end
end

path() click to toggle source

# File lib/hermes/css.rb, line 121
def path
  @out.path
rescue NoMethodError
end

properties(*args) click to toggle source

# File lib/hermes/css.rb, line 182
def properties *args
  write @selector.to_s, *args
end

selector() click to toggle source

# File lib/hermes/css.rb, line 186
def selector
  @selector.dup
end

selectors(*args) click to toggle source

# File lib/hermes/css.rb, line 190
def selectors *args
  s = []
  while Selector === args.first do
    s.push args.shift
  end
  t = s.join ", "
  write t, *args
end

space() click to toggle source

# File lib/hermes/css.rb, line 143
def space
  @out << $/
end

tag(*args) { || ... } click to toggle source

# File lib/hermes/css.rb, line 147
def tag *args
  p = []
  while Hash === args.last do
    p.unshift args.pop
  end
  @selector.tag *args do
    if p.empty? then
      yield
    else
      properties *p
    end
  end
end

Private Instance Methods

mask_comment(str) click to toggle source

# File lib/hermes/css.rb, line 201
def mask_comment str
  str.gsub /\*\//, "* /"
end

open_out(out) { |out| ... } click to toggle source

# File lib/hermes/css.rb, line 57
def open_out out
  if out or $*.empty? then
    yield out
  else
    File.open $*.shift, "w" do |f| yield f end
  end
end

write(sel, *args) click to toggle source

# File lib/hermes/css.rb, line 207
def write sel, *args
  p = {}
  args.each { |a| p.update a }
  @out << sel << " {"
  nl, ind = if p.size > 1 then
    @out << $/
    [ $/, INDENT]
  else
    [ " ", " "]
  end
  p.each { |k,v|
    if Symbol === k then k = k.new_string ; k.gsub! /_/, "-" end
    if Array  === v then v = v.join " "                      end
    @out << ind << k << ": " << v << ";" << nl
  }
  @out << "}" << $/
end