class Roadie::Stylesheet
Domain object that represents a stylesheet (from disc, perhaps).
It has a name and a list of {StyleBlock}s.
@attr_reader [String] name the name of the stylesheet (“stylesheets/main.css”, “Admin user styles”, etc.). The name of the stylesheet will be visible if any errors occur. @attr_reader [Array<StyleBlock>] blocks
Attributes
blocks[R]
name[R]
Public Class Methods
new(name, css)
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Parses the CSS string into a {StyleBlock}s and stores it.
@param [String] name @param [String] css
# File lib/roadie/stylesheet.rb, line 15 def initialize(name, css) @name = name @blocks = parse_blocks(css) end
Public Instance Methods
each_inlinable_block(&block)
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@yield [selector, properties] @yieldparam [Selector] selector @yieldparam [Array<StyleProperty>] properties @deprecated Iterate over the #{blocks} instead. Will be removed on version 4.0.
# File lib/roadie/stylesheet.rb, line 24 def each_inlinable_block(&block) # #map and then #each in order to support chained enumerations, etc. if # no block is provided inlinable_blocks.map { |style_block| [style_block.selector, style_block.properties] }.each(&block) end
to_s()
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# File lib/roadie/stylesheet.rb, line 32 def to_s blocks.join("\n") end
Private Instance Methods
create_style_block(selector_string, rule_set)
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# File lib/roadie/stylesheet.rb, line 54 def create_style_block(selector_string, rule_set) specificity = CssParser.calculate_specificity(selector_string) selector = Selector.new(selector_string, specificity) properties = [] rule_set.each_declaration do |prop, val, important| properties << StyleProperty.new(prop, val, important, specificity) end StyleBlock.new(selector, properties) end
inlinable_blocks()
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# File lib/roadie/stylesheet.rb, line 37 def inlinable_blocks blocks.select(&:inlinable?) end
parse_blocks(css)
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# File lib/roadie/stylesheet.rb, line 41 def parse_blocks(css) blocks = [] parser = setup_parser(css) parser.each_rule_set do |rule_set, media_types| rule_set.selectors.each do |selector_string| blocks << create_style_block(selector_string, rule_set) end end blocks end
setup_parser(css)
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# File lib/roadie/stylesheet.rb, line 66 def setup_parser(css) parser = CssParser::Parser.new # CssParser::Parser#add_block! mutates input parameter parser.add_block! css.dup parser end