Class: Epuber::Compiler::FileTypes::XHTMLFile

Inherits:
SourceFile show all
Defined in:
lib/epuber/compiler/file_types/xhtml_file.rb

Direct Known Subclasses

BadeFile

Instance Attribute Summary collapse

Attributes inherited from SourceFile

#abs_source_path, #file_request, #source_path

Attributes inherited from AbstractFile

#compilation_context, #destination_path, #final_destination_path, #group, #path_type, #pkg_destination_path, #properties

Instance Method Summary collapse

Methods inherited from SourceFile

#default_file_copy, #destination_file_exist?, #destination_file_up_to_date?, #find_dependencies, #initialize, #source_file_up_to_date?, #update_metadata!, #write_compiled, #write_processed

Methods inherited from AbstractFile

#==, file_copy!, write_to_file, write_to_file!, write_to_file?

Constructor Details

This class inherits a constructor from Epuber::Compiler::FileTypes::SourceFile

Instance Attribute Details

#toc_item ⇒ Epuber::Book::TocItem

Returns:



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 13

def toc_item
  @toc_item
end

Instance Method Details

#common_process(content, compilation_context) ⇒ String

Returns new xhtml string.

Parameters:

Returns:

  • (String) —

    new xhtml string



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 82

def common_process(content, compilation_context)
  target = compilation_context.target
  book = compilation_context.book
  file_resolver = compilation_context.file_resolver

  xhtml_doc, errors = UI.print_step_processing_time('parsing XHTML file') do
    XHTMLProcessor.xml_doc_from_str_with_errors(content, source_path)
  end

  if compilation_context.release_build && xhtml_doc.errors.count > 0
    process_nokogiri_errors(errors)
  end

  UI.print_step_processing_time('adding missing elements') do
    XHTMLProcessor.add_missing_root_elements(xhtml_doc, book.title, target.epub_version)
  end

  # resolve links to files, add other linked resources and compute correct path
  UI.print_step_processing_time('resolving links') do
    XHTMLProcessor.resolve_links(xhtml_doc, destination_path, file_resolver.dest_finder)
  end
  UI.print_step_processing_time('resolving image resources') do
    XHTMLProcessor.resolve_images(xhtml_doc, destination_path, file_resolver)
  end
  UI.print_step_processing_time('resolving scripts') do
    XHTMLProcessor.resolve_scripts(xhtml_doc, destination_path, file_resolver)
  end
  UI.print_step_processing_time('resolving stylesheets') do
    XHTMLProcessor.resolve_stylesheets(xhtml_doc, destination_path, file_resolver)
  end

  UI.print_step_processing_time('adding default things') do
    XHTMLProcessor.add_styles(xhtml_doc, default_styles(target, file_resolver))
    XHTMLProcessor.add_scripts(xhtml_doc, default_scripts(target, file_resolver))

    XHTMLProcessor.add_viewport(xhtml_doc, target.default_viewport) unless target.default_viewport.nil?
  end

  XHTMLProcessor.resolve_mathml_namespace(xhtml_doc)

  UI.print_step_processing_time('investigating properties') do
    self.properties << :remote_resources if XHTMLProcessor.using_remote_resources?(xhtml_doc)
    self.properties << :scripted if XHTMLProcessor.using_javascript?(xhtml_doc)
    self.properties << :mathml if XHTMLProcessor.using_mathml?(xhtml_doc)
  end

  xhtml_string = UI.print_step_processing_time('converting to XHTML') do
     xhtml_doc.to_s
  end

  # perform transformations
  UI.print_step_processing_time('performing final transformations') do
    compilation_context.perform_plugin_things(Transformer, :result_text_xhtml_string) do |transformer|
      xhtml_string = transformer.call(final_destination_path, xhtml_string, compilation_context)
    end
  end

  # perform custom validation
  if compilation_context.should_check
    UI.print_step_processing_time('performing final validations') do
      compilation_context.perform_plugin_things(Checker, :result_text_xhtml_string) do |checker|
        checker.call(final_destination_path, xhtml_string, compilation_context)
      end
    end
  end

  xhtml_string
end

#default_scripts(target, file_resolver) ⇒ Array<String>

Returns list of paths to styles relative to this file.

Parameters:

Returns:

  • (Array<String>) —

    list of paths to styles relative to this file



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 35

def default_scripts(target, file_resolver)
  default_scripts = target.default_scripts.map do |default_style_request|
    Array(file_resolver.file_from_request(default_style_request))
  end.flatten

  default_scripts.map do |style|
    Pathname.new(style.final_destination_path).relative_path_from(Pathname.new(File.dirname(final_destination_path))).to_s
  end
end

#default_styles(target, file_resolver) ⇒ Array<String>

Returns list of paths to styles relative to this file.

Parameters:

Returns:

  • (Array<String>) —

    list of paths to styles relative to this file



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 20

def default_styles(target, file_resolver)
  default_styles = target.default_styles.map do |default_style_request|
    Array(file_resolver.file_from_request(default_style_request))
  end.flatten

  default_styles.map do |style|
    Pathname.new(style.final_destination_path).relative_path_from(Pathname.new(File.dirname(final_destination_path))).to_s
  end
end

#load_source(compilation_context) ⇒ Object

Parameters:



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 47

def load_source(compilation_context)
  xhtml_content = File.read(abs_source_path)

  compilation_context.perform_plugin_things(Transformer, :source_text_file) do |transformer|
    xhtml_content = transformer.call(abs_source_path, xhtml_content, compilation_context)
  end

  # perform custom validation
  if compilation_context.should_check
    compilation_context.perform_plugin_things(Checker, :source_text_file) do |checker|
      checker.call(abs_source_path, xhtml_content, compilation_context)
    end
  end


  if compilation_context.should_write
    self.class.write_to_file(xhtml_content, abs_source_path)
  end

  xhtml_content
end

#process(compilation_context) ⇒ Object

Parameters:



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 153

def process(compilation_context)
  write_processed(common_process(load_source(compilation_context), compilation_context))
end

#process_nokogiri_errors(errors) ⇒ Object

Parameters:



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# File 'lib/epuber/compiler/file_types/xhtml_file.rb', line 71

def process_nokogiri_errors(errors)
  errors.each do |problem|
    UI.warning(problem, location: self)
  end
end