Class: Uniword::Themes::ThemeXmlParser

Inherits:
Object
  • Object
show all
Defined in:
lib/uniword/theme/theme_xml_parser.rb

Overview

Parses theme XML files into Theme models

Handles parsing of theme1.xml files from .thmx packages, extracting color schemes, font schemes, and format schemes.

Examples:

Parse a theme XML file

parser = ThemeXmlParser.new
theme = parser.parse(theme_xml_content)
puts theme.name
puts theme.color_scheme.colors[:accent1]

Constant Summary collapse

THEME_NS =

DrawingML namespace used in theme XML

{
  "a" => "http://schemas.openxmlformats.org/drawingml/2006/main",
}.freeze

Instance Method Summary collapse

Instance Method Details

#parse(xml) ⇒ Theme

Parse theme1.xml into Theme model

Parameters:

  • xml (String) —

    Theme XML content

Returns:

  • (Theme) —

    Parsed theme

Raises:

  • (ArgumentError) —

    if XML is invalid or missing theme element



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# File 'lib/uniword/theme/theme_xml_parser.rb', line 28

def parse(xml)
  doc = Nokogiri::XML(xml)
  theme_node = doc.at_xpath("//a:theme", THEME_NS)

  unless theme_node
    raise ArgumentError,
          "Invalid theme XML: missing theme element"
  end

  theme = ::Uniword::Drawingml::Theme.new
  theme.name = theme_node["name"] || "Untitled Theme"

  # Create theme_elements if not exists
  theme.theme_elements ||= ::Uniword::Drawingml::ThemeElements.new

  # Parse color scheme
  color_scheme_node = doc.at_xpath("//a:themeElements/a:clrScheme",
                                   THEME_NS)
  if color_scheme_node
    scheme = parse_color_scheme(color_scheme_node)
    theme.theme_elements.clr_scheme = scheme
  end

  # Parse font scheme
  font_scheme_node = doc.at_xpath("//a:themeElements/a:fontScheme",
                                  THEME_NS)
  if font_scheme_node
    scheme = parse_font_scheme(font_scheme_node)
    theme.theme_elements.font_scheme = scheme
  end

  theme
end