Class: Markawesome::ImageDialogTransformer

Inherits:
BaseTransformer show all
Defined in:
lib/markawesome/transformers/image_dialog_transformer.rb

Overview

Transforms standalone images into clickable images that open in dialogs Images can opt-out by adding “nodialog” to the title attribute Example: ![Alt text](image.png “nodialog”)

Class Method Summary collapse

Class Method Details

.render_as_markdown(content, _config = {}) ⇒ Object

For plain-markdown output image-dialog wrapping is dropped: the raw markdown image syntax is already what we want.



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# File 'lib/markawesome/transformers/image_dialog_transformer.rb', line 45

def self.render_as_markdown(content, _config = {})
  content
end

.transform(content, config = {}) ⇒ Object 



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# File 'lib/markawesome/transformers/image_dialog_transformer.rb', line 11

def self.transform(content, config = {})
  # First, protect code blocks, inline code, and comparison blocks from transformation
  protected_content, fenced_code_blocks = protect_fenced_code_blocks(content)
  protected_content, inline_code_blocks = protect_inline_code(protected_content)
  protected_content, comparison_blocks = protect_comparisons(protected_content)

  # Match markdown images: ![alt](url) or ![alt](url "title")
  # Capture alt text, URL, and optional title
  # URL can contain spaces and special characters
  image_regex = /!\[([^\]]*)\]\(([^)]+?)(?:\s+"([^"]*)")?\)/

  result = protected_content.gsub(image_regex) do |match|
    alt_text = Regexp.last_match(1)
    image_url = Regexp.last_match(2).strip
    title = Regexp.last_match(3)

    # Skip transformation if title contains "nodialog"
    if title&.include?('nodialog')
      # Return original image without dialog
      match
    else
      # Transform to clickable image with dialog
      transform_to_dialog(alt_text, image_url, title, config)
    end
  end

  # Restore protected blocks in reverse order
  result = restore_comparisons(result, comparison_blocks)
  result = restore_inline_code(result, inline_code_blocks)
  restore_fenced_code_blocks(result, fenced_code_blocks)
end