Class: Declaration

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

Overview

Declaration represents a declaration in a style sheet rule. It is composed of a property and a value. The property must be valid.

Example:

d = declaration.new ( "border-color", "blue" )
puts d.property #=> "border-color"
puts d.value    #=> "blue"

Defined Under Namespace

Classes: PropertyError

Constant Summary collapse

VALID_PROPERTIES =

Properties for CSS1 to CSS3

%w(
  alignment-adjust alignment-baseline appearance azimuth background background-attachment background-break
  background-clip background-color background-image background-origin background-position background-repeat
  background-size baseline-shift binding bookmark-label bookmark-level bookmark-target border border-bottom
  border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width
  border-break border-collapse border-color border-image border-left border-left-color border-left-style
  border-left-width border-length border-radius border-right border-right-color border-right-style border-right-width
  border-spacing border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style
  border-top-width border-width bottom box-align box-direction box-flex box-flex-group box-lines box-orient box-pack
  box-shadow box-sizing caption-side clear clip color color-profile column-break-after column-break-before column-count
  column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns
  content counter-increment counter-reset crop cue cue-after cue-before cursor direction display dominant-baseline
  drop-initial-after-adjust drop-initial-after-align drop-initial-before-adjust drop-initial-before-align
  drop-initial-size drop-initial-value elevation empty-cells fit fit-position float float-offset font
  font-effect font-emphasize font-emphasize-position font-emphasize-style font-family font-size font-size-adjust
  font-smooth font-stretch font-style font-variant font-weight grid-columns grid-rows hanging-punctuation height
  hyphenate-after hyphenate-before hyphenate-character hyphenate-lines hyphenate-resource hyphens icon image-orientation
  image-resolution inline-box-align left letter-spacing line-height line-stacking line-stacking-ruby line-stacking-shift
  line-stacking-strategy list-style list-style-image list-style-position list-style-type margin margin-bottom margin-left
  margin-right margin-top mark mark-after mark-before marker-offset marks marquee-direction marquee-loop marquee-speed
  marquee-style max-height max-width min-height min-width move-to nav-down nav-index nav-left nav-right nav-up opacity orphans
  outline outline-color outline-offset outline-style outline-width overflow overflow-style overflow-x overflow-y padding
  padding-bottom padding-left padding-right padding-top page page-break-after page-break-before page-break-inside page-policy
  pause pause-after pause-before phonemes pitch pitch-range play-during position presentation-level punctuation-trim quotes
  rendering-intent resize rest rest-after rest-before richness right rotation rotation-point ruby-align ruby-overhang ruby-position
  ruby-span size speak speak-header speak-numeral speak-punctuation speech-rate stress string-set tab-side table-layout target
  target-name target-new target-position text-align text-align-last text-decoration text-emphasis text-height text-indent
  text-justify text-outline text-replace text-shadow text-transform text-wrap top unicode-bidi vertical-align visibility
  voice-balance voice-duration voice-family voice-pitch voice-pitch-range voice-rate voice-stress voice-volume volume
  white-space white-space-collapse widows width word-break word-spacing word-wrap z-index
)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(property, value) ⇒ Declaration

Returns a new instance of Declaration.

Raises:



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# File 'lib/csspress/declaration.rb', line 61

def initialize(property, value)
  raise PropertyError unless VALID_PROPERTIES.include?(property)
  @property = property
  @value = value
end

Instance Attribute Details

#property ⇒ Object (readonly)

Returns the value of attribute property.



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# File 'lib/csspress/declaration.rb', line 22

def property
  @property
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/csspress/declaration.rb', line 22

def value
  @value
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/csspress/declaration.rb', line 67

def to_s
  "#{@property}:#{@value}"
end