diff options
| author | murphy <murphy@rubychan.de> | 2005-10-29 06:06:39 +0000 |
|---|---|---|
| committer | murphy <murphy@rubychan.de> | 2005-10-29 06:06:39 +0000 |
| commit | 864190853fdc693936c0e683a61b24b85a9ff946 (patch) | |
| tree | b5f908d26489b8c25fd2af1a7cdf2916a7640b92 /css/css.rb | |
| parent | 457f919fe5ba7456f08fc493dc0ec70d2efbf4a3 (diff) | |
| download | coderay-864190853fdc693936c0e683a61b24b85a9ff946.tar.gz | |
CSS class added. Don't yet know if I use it.
Diffstat (limited to 'css/css.rb')
| -rw-r--r-- | css/css.rb | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/css/css.rb b/css/css.rb new file mode 100644 index 0000000..a52b5e2 --- /dev/null +++ b/css/css.rb @@ -0,0 +1,101 @@ +class CSS < Hash
+
+ attr_reader :mode
+
+ def initialize styles = [], mode = nil
+ @mode = mode
+ @sorted = []
+ @styles = read styles
+ @styles_used = {}
+ super() do |hash, key|
+ hash[key] = style_for key
+ end
+ end
+
+ def clear
+ super
+ @sorted.clear
+ end
+
+ def style_for selector, mode = @mode
+ selector = selector.to_s if selector.is_a? Symbol
+ case mode
+ when nil: self[selector]
+ when :style, :class: send mode, selector
+ else
+ raise
+ end
+ #case selector
+ #when String: selector]
+ #when Symbol: self[selector.to_s]
+ #when Array: self[selector.last]
+ #else
+ # raise ArgumentError, 'String, Symbol or Array expected, %p given' % styles.class
+ #end
+ end
+
+ def read styles
+ case styles
+ when String: read_style_sheet styles
+ when Array: read_style_list styles
+ else
+ raise ArgumentError, 'String or Array expected, %p given' % styles.class
+ end
+ end
+
+ def read_style_list list
+ for clas, style in list
+ add clas, style
+ end
+ end
+
+ def add clas, style
+ @sorted << clas
+ self[clas] = style
+ end
+
+ protected :[]=, :fetch
+
+ def use selector
+ @styles_used[selector] = true
+ end
+
+ def class selector = nil
+ # redirect to Object#class if no argument given
+ return super unless selector
+
+ use selector
+ "class=\"#{selector}\""
+ end
+
+ def style selector
+ "style=\"#{self[selector]}\""
+ end
+
+ def stylesheet_tag indent = nil
+ tag = <<-STYLESHEET
+<style type="text/css">
+#{stylesheet}
+</style>
+ STYLESHEET
+ tag.gsub!(/^/, indent) if indent
+ tag
+ end
+
+ def stylesheet
+ @styles_used.sort_by { |sel,| sel }.map do |selector, val|
+ ".#{selector} { #{self.fetch(selector)} }"
+ end.join "\n"
+ end
+
+end
+
+if $0 == __FILE__
+ css = CSS.new [
+ ['foo', 'color: blue'],
+ ['bar', 'font-size: 200%'],
+ ], :class
+
+ puts "<span #{css[:foo]}>Test</span>"
+ puts css.stylesheet_tag
+end
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