Class: Jekyll::SimpleAssets::AssetTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/jekyll-simple-assets/content-hash.rb

Direct Known Subclasses

ContentHashTag, PathTag

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, text, tokens) ⇒ AssetTag

Returns a new instance of AssetTag.



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# File 'lib/jekyll-simple-assets/content-hash.rb', line 32

def initialize (tag_name, text, tokens)
	super
	@text = text
end

Instance Method Details

#get_value(context, expression) ⇒ Object 



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# File 'lib/jekyll-simple-assets/content-hash.rb', line 37

def get_value (context, expression)
	result = nil

	unless expression.empty?
		lookup_path = expression.split('.')
		result = context
		lookup_path.each do |variable|
			result = result[variable] if result
		end
	end

	case result
	when 'true'
		result = true
	when 'false'
		result = false
	end

	result || expression
end

#render(context) ⇒ Object 



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# File 'lib/jekyll-simple-assets/content-hash.rb', line 58

def render (context)
	site = SimpleAssets::site(context.registers[:site])

	page = context.environments.first['page']

	args = Shellwords.split(@text)

	page_path = context['page']['path'].sub(/^\//, '')

	asset_path = get_value(context, args[0]).sub(/^\//, '')

	if SimpleAssets::hashing_enabled?
		SimpleAssets::page_assets_map[page_path] ||= {}
		SimpleAssets::page_assets_map[page_path][asset_path] ||= {}
		SimpleAssets::page_assets_map[page_path][asset_path][@type] ||= []

		placeholder = SimpleAssets::get_placeholder(asset_path)

		unless SimpleAssets::page_assets_map[page_path][asset_path][@type].include? placeholder
			SimpleAssets::page_assets_map[page_path][asset_path][@type] << placeholder
		end

		"#{ @type }::#{ placeholder }"
	else
		if @type == 'path'
			SimpleAssets::relative_url(asset_path)
		else
			placeholder[0, SimpleAssets::hash_length]
		end
	end
end