Class: Scriptorium::View

Inherits:
Object
  • Object
show all
Includes:
Contract, Exceptions, Helpers
Defined in:
lib/skeleton.rb,
lib/scriptorium/view.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Contract

#assume, #check_invariants, enabled?, #invariant, #verify

Methods included from Helpers

#add_post_to_state_file, #cf_time, #change_config, #clean_slugify, #copy_gem_asset_to_user, #copy_to_clipboard, #d4, #escape_html, #find_asset, #format_date, #generate_missing_asset_svg, #get_asset_path, #get_from_clipboard, #getvars, #list_gem_assets, #make_dir, #make_tree, #need, #parse_commented_file, #post_compare, #post_in_state_file?, #read_commented_file, #read_file, #read_post_state_file, #remove_post_from_state_file, #see, #see_file, #slugify, #substitute, #system!, #tty, #view_dir, #write_file, #write_file!, #write_post_state_file, #ymdhms, #ymdhms_filename

Methods included from Exceptions

#make_exception

Constructor Details

#initialize(name, title, subtitle = "", theme = "standard") ⇒ View 



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# File 'lib/scriptorium/view.rb', line 26

def initialize(name, title, subtitle = "", theme = "standard")
  msg = "name must be a String, got #{name.class}"
  assume(msg) { name.is_a?(String) }
  msg = "title must be a String, got #{title.class}"
  assume(msg) { title.is_a?(String) }
  msg = "subtitle must be a String, got #{subtitle.class}"
  assume(msg) { subtitle.is_a?(String) }
  msg = "theme must be a String, got #{theme.class}"
  assume(msg) { theme.is_a?(String) }
  
  validate_name(name)
  validate_title(title)
  
  @name, @title, @subtitle, @theme = name, title, subtitle, theme
  @root = Scriptorium::Repo.root
  @repo = Scriptorium::Repo.repo
  @dir = "#@root/views/#{name}"
  @predef = Scriptorium::StandardFiles.new
  
  define_invariants
  verify { @name == name }
  verify { @title == title }
  check_invariants
end

Instance Attribute Details

#dir ⇒ Object (readonly)

Returns the value of attribute dir.



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# File 'lib/scriptorium/view.rb', line 8

def dir
  @dir
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/scriptorium/view.rb', line 8

def name
  @name
end

#subtitle ⇒ Object (readonly)

Returns the value of attribute subtitle.



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# File 'lib/scriptorium/view.rb', line 8

def subtitle
  @subtitle
end

#theme(change = nil) ⇒ Object (readonly)

Returns the value of attribute theme.



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# File 'lib/scriptorium/view.rb', line 8

def theme
  @theme
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/scriptorium/view.rb', line 8

def title
  @title
end

Class Method Details

.create_sample_view(repo) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 10

def self.create_sample_view(repo)
  repo.create_view("sample", "My first view", "This is just a sample")
  # repo.generate_front_page("sample")
end

Instance Method Details

#apply_theme(theme) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 134

def apply_theme(theme)
  check_invariants
  msg = "theme must be a non-empty String, got #{theme.class} (#{theme.inspect})"
  assume(msg) { theme.is_a?(String) && !theme.empty? }
  
  # check to see if ever done before?
  # copy layout.txt to view
  t = Scriptorium::Theme.new(@root, theme)
  need(:file, t.file("layout.txt"), ThemeFileNotFound)
  FileUtils.cp(t.file("layout.txt"), @dir/:config)
  # copy other .txt to view?  header, footer, ...
  names = %w[header footer left right main]
  lay = @root/:themes/theme/:layout
  names.each do |name|
    f1, f2 = lay/:config/"#{name}.txt", dir/:config
    need(:file, f1, ThemeFileNotFound)
    FileUtils.cp(f1, f2)
  end
  generate_empty_containers
  
  verify { @theme == theme }
  check_invariants
end

#build_banner(arg) ⇒ Object

Helpers for header



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# File 'lib/scriptorium/view.rb', line 266

def build_banner(arg)
  # Check if this is an SVG banner request
  return build_banner_svg("svg") if arg == "svg"
  
  # Otherwise, treat as image filename
  return build_banner_image(arg)
end

#build_banner_image(image_filename) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 276

def build_banner_image(image_filename)
  # Search for image in multiple locations
  image_paths = [
    @dir/:assets/image_filename,           # view/assets/
    @repo.root/:assets/image_filename,     # repo/assets/
  ]
  
  # Find the first existing image
  image_path = image_paths.find { |path| File.exist?(path) }
  
  if image_path
    # Use relative path for the img src
    if image_path.to_s.start_with?(@dir.to_s)
      # Image is in view directory, use relative path
      relative_path = image_path.to_s.sub(@dir.to_s + "/", "")
    else
      # Image is in repo directory, use relative path from view
      relative_path = "../assets/#{image_filename}"
    end
    html = %[<img src='#{relative_path}' alt='Banner Image' style='width: 100%; height: auto;' />]
    return html
  else
    # Try to copy from global assets
    global_assets_dir = @repo.root/:assets
    global_image_path = global_assets_dir/image_filename
    
    if File.exist?(global_image_path)
      # Copy to view assets
      view_assets_dir = @dir/:assets
      make_dir(view_assets_dir) unless Dir.exist?(view_assets_dir)
      FileUtils.cp(global_image_path, view_assets_dir/image_filename)
      
      # Use relative path
      relative_path = "assets/#{image_filename}"
      html = %[<img src='#{relative_path}' alt='Banner Image' style='width: 100%; height: auto;' />]
      return html
    else
      # Image not found anywhere
      html = %[<p>Banner image missing: #{image_filename}</p>]
      return html
    end
  end
end

#build_banner_svg(arg) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 320

def build_banner_svg(arg)
  bsvg = Scriptorium::BannerSVG.new(@title, @subtitle)
  
  # Look for svg.txt file in the view's config directory
  svg_config_file = @dir/:config/"svg.txt"
  if File.exist?(svg_config_file)
    bsvg.parse_header_svg(svg_config_file)
  else
    # No svg.txt file, just use defaults
    bsvg.parse_header_svg
  end
  
  bsvg.get_svg
end

#build_containers ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 859

def build_containers
  sections = read_layout
  content = ""
  content << build_header(sections)
  content << "<!-- before left/main/right -->\n"
  content << "<div style='display: flex; flex-grow: 1; height: 100%; flex-direction: row;'>"
  content << build_left(sections)
  content << build_main(sections)
  content << build_right(sections)
  content << "</div> <!-- after left/main/right --></div>\n"
  content << build_footer(sections)
  content
end

#build_footer(sections) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 546

def build_footer(sections)
  args = sections["footer"]
  return "" unless args
  build_section("footer", {}, args)
end

#build_header(sections) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 251

def build_header(sections)
  args = sections["header"]
  return "" unless args
  h2 = { 
    "title"      => ->(arg = nil) { "  <h1>#{escape_html(@title)}</h1>" },
    "subtitle"   => ->(arg = nil) { "  <p>#{escape_html(@subtitle)}</p>" },
    "nav"        => ->(arg = nil) { build_nav(arg) },
    "banner"     => ->(arg = nil) { build_banner(arg) }
  }

  build_section("header", h2, args)
end

#build_left(sections) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 552

def build_left(sections)
  args = sections["left"]
  return "" unless args
  h2 = { "widget" => ->(arg = nil) { build_widgets(arg) } }
  build_section("left", h2, args)
end

#build_main(sections) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 566

def build_main(sections)
  args = sections["main"]
  return "" unless args
  html = "  <!-- Section: main (output) -->\n"
  html << %[  <div id="main" class="main" style="flex-grow: 1; padding: 5px; overflow-y: auto; position: relative; display: block;">]
  # html << %[<div id="main" class="main" style="position: relative; display: flex; flex-direction: column;">\n]
  html << support_data('post_index/style.css')
  if view_posts.empty?
    html << "  <h1>No posts yet!</h1>"
  else
    paginate_posts
    need(:file, self.dir/:output/"post_index.html")
    html << read_file(self.dir/:output/"post_index.html")
  end
  html << "</div> <!-- end main -->\n"
end

#build_nav(arg) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 335

def build_nav(arg)
  # Determine navbar file - if no arg, use navbar.txt, otherwise use specified file
  nav_file = if arg.nil? || arg.strip.empty?
    @dir/:config/"navbar.txt"
  else
    @dir/:config/"#{arg}"
  end
  
  # Read navbar content with fallback for missing files
  nav_content = read_file(nav_file, missing_fallback: "<p>Navigation not available</p>")
  
  # Parse and generate Bootstrap navbar
  generate_bootstrap_navbar(nav_content)
end

#build_right(sections) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 559

def build_right(sections)
  args = sections["right"]
  return "" unless args
  h2 = { "widget" => ->(arg = nil) { build_widgets(arg) } }
  build_section("right", h2, args)
end

#build_section(section, hash2 = {}, args = "") ⇒ Object

To build a header, I start with two things:

config/header.txt (which is user-supplied and has things such as "title" in it); and 
layout/header.html (which is a template with <header> tags enclosing at least a line 
     like "<!-- Section: header -->"

get core: I process header.txt line by line, gathering the “core” or “guts” of the header. sub into template: I substitute this into the template contents and write output: write the result to output/panes/header.html



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# File 'lib/scriptorium/view.rb', line 226

def build_section(section, hash2 = {}, args = "")
  template = @dir/:layout/"#{section}.html"
  output = @dir/:output/:panes/"#{section}.html"
  
  # Ensure output directory exists
  FileUtils.mkdir_p(File.dirname(output))
  
  # Check if template exists
  need(:file, template)
  
  hash = section_hash(section)
  hash.merge!(hash2)
  core = section_core(section, hash)
  
  temp_txt = read_file(template)
  
  target = content_tag(section)
  temp_txt.sub!(target, core)
  
  write_file(output, temp_txt)
  
  html = read_file(output)
  html
end

#build_widgets(arg) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 493

def build_widgets(arg)
  check_invariants
  msg = "arg must be a String, got #{arg.class}"
  assume(msg) { arg.is_a?(String) }
  validate_widget_arg(arg)
  
  widgets = arg.split
  content = ""
  widgets.each do |widget|
    validate_widget_name(widget)
    
    begin
      widget_class = eval("Scriptorium::Widget::#{widget.capitalize}")
      obj = widget_class.new(@repo, self)
      obj.generate
      content << obj.card
    rescue => e
      raise CannotBuildWidget("Failed to build widget '#{widget}': #{e.message}")
    end
  end
  
  # Wrap widgets in bootstrap-scope container
  if content.strip.empty?
    result = content
  else
    result = <<~HTML
      <div class="bootstrap-scope">
        #{content}
      </div>
    HTML
  end
  
  verify { result.is_a?(String) }
  check_invariants
  result
end

#content_tag(section) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 158

def content_tag(section)
  "<!-- Section: #{section} -->"
end

#define_invariants ⇒ Object

Invariants



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# File 'lib/scriptorium/view.rb', line 16

def define_invariants
  invariant { @name.is_a?(String) && !@name.empty? }
  invariant { @title.is_a?(String) && !@title.empty? }
  invariant { @subtitle.is_a?(String) }
  invariant { @theme.is_a?(String) && !@theme.empty? }
  invariant { @root.is_a?(String) && !@root.empty? }
  invariant { @repo.is_a?(Scriptorium::Repo) }
  invariant { @dir.is_a?(String) && !@dir.empty? }
end

#generate_bootstrap_css(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 685

def generate_bootstrap_css(view = nil)
  global_boot = @root/:config/"bootstrap_css.txt"
  view_boot   = @dir/:config/"bootstrap_css.txt"
  bs_file = view ? view_boot : global_boot
  lines = read_commented_file(bs_file)
  href = rel = integrity = crossorigin = nil
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "href"
      href = args
    when "rel"
      rel = args
    when "integrity"
      integrity = args
    when "crossorigin"
      crossorigin = args
    end
  end
  # content = %[<link rel="#{rel}" href="#{href}" integrity="#{integrity}" crossorigin="#{crossorigin}">\n]
  content = %[<link rel="stylesheet" href="#{href}"></link>\n]
  content
end

#generate_bootstrap_js(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 711

def generate_bootstrap_js(view = nil)
  global_boot = @root/:config/"bootstrap_js.txt"
  view_boot   = @dir/:config/"bootstrap_js.txt"
  bs_file = view ? view_boot : global_boot
  lines = read_commented_file(bs_file)
  src = integrity = crossorigin = nil
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "src"
      src = args
    when "rel"
      # rel = args
    when "integrity"
      integrity = args
    when "crossorigin"
      crossorigin = args
    end
  end
  # content = %[<script src="#{src}" integrity="#{integrity}" crossorigin="#{crossorigin}"></script>\n]
  content = %[<script src="#{src}"></script>\n]
  content
end

#generate_bootstrap_navbar(nav_content) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 350

def generate_bootstrap_navbar(nav_content)
  menu_items = parse_navbar_content(nav_content)
  
  # Generate Bootstrap navbar HTML wrapped in bootstrap-scope
  html = <<~HTML
    <div class="bootstrap-scope">
      <nav class="navbar navbar-expand-lg navbar-light bg-light">
        <div class="container-fluid">
          <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>
          <div class="collapse navbar-collapse" id="navbarNav">
            <ul class="navbar-nav">
              #{generate_navbar_items(menu_items)}
            </ul>
          </div>
        </div>
      </nav>
    </div>
  HTML
  
  html
end

#generate_dropdown_child(child) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 450

def generate_dropdown_child(child)
  link_url, warning = get_page_link(child[:filename])
  
  html = <<~HTML
    <li><a class="dropdown-item" href="javascript:void(0)" onclick="load_main('#{link_url}')">#{escape_html(child[:title])}</a></li>
  HTML
  
  html << "<!-- #{warning} -->\n" if warning
  
  html
end

#generate_dropdown_item(item) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 431

def generate_dropdown_item(item)
  html = <<~HTML
    <li class="nav-item dropdown">
      <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
        #{escape_html(item[:label])}
      </a>
      <ul class="dropdown-menu">
  HTML
  
  item[:children].each {|child| html << generate_dropdown_child(child) }
  
  html << <<~HTML
      </ul>
    </li>
  HTML
  
  html
end

#generate_empty_containers ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 90

def generate_empty_containers
  layout_file = @dir/:config/"layout.txt"
  return unless File.exist?(layout_file)

  flexing = {
    header: %[id="header" class="header" style="padding: 10px; width: 100%; box-sizing: border-box;"],
    footer: %[class="footer" style="background: lightgray; padding: 10px;"],
    left:   %[class="left" style="width: %{width}; background: #f0f0f0; padding: 10px; flex-grow: 0; flex-shrink: 0;"],
    right:  %[class="right" style="width: %{width}; background: #f0f0f0; padding: 10px; flex-grow: 0; flex-shrink: 0;"],
    main:   %[class="main" style="flex-grow: 1; padding: 10px;"]
  }
  sections = read_layout
  lines = sections.keys
  # FIXME Pleeeease refactor this.
  lines.each do |section|
    args  = sections[section]  # like 20% for right, left
    filename = @dir/:layout/"#{section}.html"
    tag = section   # header, footer, main
    tag = "aside" if section == 'left' || tag == 'right'
  
    inline = flexing[section.to_sym]
    if section == "left" || section == "right"
      mod = {width: args}
      inline = inline % mod
    end
    content = <<~HTML
      <#{tag} #{inline}>
        <!-- Section: #{section} -->
      </#{tag}>
    HTML

    write_file(filename, content)
  end
end

#generate_front_page ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 916

def generate_front_page
  index_file  = @dir/:output/"index.html"
  FileUtils.mkdir_p(File.dirname(index_file))

  html_head = generate_html_head(true)
  content = build_containers
  common = get_common_js
  boot   = generate_bootstrap_js
  highlight_js = generate_highlight_js(true)
  highlight_ruby_js = generate_highlight_ruby_js(true)
  full_html = <<~HTML
    <!DOCTYPE html>
    #{html_head}
    <html style="height: 100%; margin: 0;">
      <body style="height: 100%; margin: 0; display: flex; flex-direction: column;">
        #{content.strip}
        #{boot.strip}
        #{highlight_js.strip}
        #{highlight_ruby_js.strip}
        #{common.strip}
      </body>
    </html>
  HTML

  # Beautify HTML if HtmlBeautifier is available
  begin
    full_html = ::HtmlBeautifier.beautify(full_html)
  rescue NameError, LoadError => e
    # HtmlBeautifier not available, continue without beautification
    # This is not critical for functionality
  end

  # Write the main index file
  write_file(index_file, full_html)

  # Write debug file (optional, don't fail if it doesn't work)
  begin
    write_file("/tmp/full.html", full_html)
  rescue => e
    # Debug file write failed, but this is not critical
  end

  # Copy pages directory to output if it exists
  pages_source = @dir/:pages
  pages_output = @dir/:output/:pages
  if Dir.exist?(pages_source)
    FileUtils.mkdir_p(pages_output)
    Dir.glob(pages_source/"*").each do |file|
      next unless File.file?(file)
      FileUtils.cp(file, pages_output/File.basename(file))
    end
  end
end

#generate_highlight_css(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 970

def generate_highlight_css(view = nil)
  global_highlight = @root/:config/"highlight_css.txt"
  view_highlight   = @dir/:config/"highlight_css.txt"
  highlight_file = view ? view_highlight : global_highlight
  lines = read_commented_file(highlight_file)
  href = rel = nil
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "href"
      href = args
    when "rel"
      rel = args
    end
  end
  %[<link rel="#{rel}" href="#{href}">\n]
end

#generate_highlight_js(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 988

def generate_highlight_js(view = nil)
  global_highlight = @root/:config/"highlight_js.txt"
  view_highlight   = @dir/:config/"highlight_js.txt"
  highlight_file = view ? view_highlight : global_highlight
  lines = read_commented_file(highlight_file)
  src = nil
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "src"
      src = args
    end
  end
  %[<script src="#{src}"></script>\n]
end

#generate_highlight_ruby_js(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 1004

def generate_highlight_ruby_js(view = nil)
  global_highlight = @root/:config/"highlight_ruby_js.txt"
  view_highlight   = @dir/:config/"highlight_ruby_js.txt"
  highlight_file = view ? view_highlight : global_highlight
  lines = read_commented_file(highlight_file)
  src = nil
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "src"
      src = args
    end
  end
  %[<script src="#{src}"></script>\n]
end

#generate_html_head(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 635

def generate_html_head(view = nil)
  # FIXME - view does not yet override global
  global_head = @root/:config/"global-head.txt"
  view_head   = @dir/:config/"global-head.txt"
  head_file = view ? view_head : global_head
  which = view ? "view" : "global"
  line1 = "<!-- head info from #{which} -->"
  lines = read_commented_file(head_file)
  content = "<head>\n#{line1}\n<title>#{@title}</title>\n"
  lines.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "charset"
      @charset = args
      content << %[<meta charset="#{args}">\n]
    when "desc"
      @desc = args
      content << %[<meta name="description" content="#{args}">\n]
    when "viewport"
      @viewport = args
      str = args.split.join(" ")
      content << %[<meta name="viewport" content="#{str}">\n]
    when "robots"
      @robots = args
      str = args.split.join(", ")  
      content << %[<meta name="robots" content="#{str}">\n]
    # when "javascript"
    #   content << get_common_js(view)
    when "bootstrap"
      content << generate_bootstrap_css(view)
    when "social"
      content << generate_social_meta_tags(args)
    when "highlight"
      content << generate_highlight_css(view) # loads highlight_css.txt
    when "highlight_custom"
      content << support_data('highlight/custom.css')
    end
  end
  content << "</head>\n"
  content
end

#generate_nav_item(item) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 462

def generate_nav_item(item)
  link_url, warning = get_page_link(item[:filename])
  
  html = <<~HTML
    <li class="nav-item">
      <a class="nav-link" href="javascript:void(0)" onclick="load_main('#{link_url}')">#{escape_html(item[:title])}</a>
    </li>
  HTML
  
  html << "<!-- #{warning} -->\n" if warning
  
  html
end

#generate_navbar_items(menu_items) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 416

def generate_navbar_items(menu_items)
  html = ""
  
  menu_items.each do |item|
    case item[:type]
    when :dropdown
      html << generate_dropdown_item(item)
    when :item
      html << generate_nav_item(item)
    end
  end
  
  html
end

#generate_post_index ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 583

def generate_post_index
  posts = @repo.all_posts(self) 
  config = read_post_index_config
  
  # Build table with configurable margin-top
  margin_top = config[:"index.margin.top"] || "0px"
  str = "<table width=100% cellpadding=#{config[:'entry.cellpadding']} style=\"margin-top: #{margin_top};\">"
  
  # FIXME - many decisions to make here...
  posts.each {|post| str << post_index_entry(post) }
  str << "</table>"
  
  write_file(@dir/:output/"post_index.html", str)    
end

#generate_reddit_button(post_data = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 795

def generate_reddit_button(post_data = nil)
  # Check if Reddit is enabled in social config
  social_config_file = @dir/:config/"social.txt"
  return "" unless File.exist?(social_config_file)
  
  social_config = read_commented_file(social_config_file)
  reddit_enabled = social_config.any? { |line| line.strip.downcase == "reddit" }
  return "" unless reddit_enabled
  
  # Check if Reddit button is enabled
  reddit_config_file = @dir/:config/"reddit.txt"
  return "" unless File.exist?(reddit_config_file)
  
  reddit_config = read_commented_file(reddit_config_file)
  button_enabled = false
  subreddit = ""
  hover_text = ""
  
  reddit_config.each do |line|
    component, args = line.split(/\s+/, 2)
    case component.downcase
    when "button"
      button_enabled = (args&.downcase == "true")
    when "subreddit"
      subreddit = args&.strip || ""
    when "hover_text"
      hover_text = args&.strip || ""
    end
  end
  
  return "" unless button_enabled
  
  # Determine post URL and title
  if post_data
    title = post_data[:"post.title"] || @title
    slug = post_data[:"post.slug"] || slugify(post_data[:"post.id"], title)
    url = "posts/#{slug}#{slug.end_with?('.html') ? '' : '.html'}"
  else
    title = @title
    url = "index.html"
  end
  
  # Build Reddit share URL
  require 'uri'
  encoded_title = URI.encode_www_form_component(title)
  if subreddit.empty?
    reddit_url = "https://reddit.com/submit?url=#{escape_html(url)}&title=#{encoded_title}"
  else
    reddit_url = "https://reddit.com/r/#{subreddit}/submit?url=#{escape_html(url)}&title=#{encoded_title}"
  end
  
  # Determine hover text
  if hover_text.empty?
    hover_text = subreddit.empty? ? "Share on Reddit" : "Share on r/#{subreddit}"
  end
  
  # Generate button HTML (use production-relative ../../assets for posts context)
  button_html = %[<a href="#{reddit_url}" target="_blank" title="#{hover_text}" style="text-decoration: none; margin-right: 8px;">
    <img src="../../assets/icons/social/reddit.png" width="32" height="32" alt="Share on Reddit" style="vertical-align: middle;">
  </a>]
  
  button_html
end

#generate_social_meta_tags(args = nil, post_data = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 735

def generate_social_meta_tags(args = nil, post_data = nil)
  # Check if social is enabled for this view
  social_config_file = @dir/:config/"social.txt"
  return "" unless File.exist?(social_config_file)
  
  # Read social configuration
  social_config = read_commented_file(social_config_file)
  platforms = []
  
  # Each non-comment line is a platform name
  social_config.each do |line|
    platform = line.strip.downcase
    platforms << platform if platform.match?(/^(facebook|twitter|linkedin|reddit)$/)
  end
  
  return "" if platforms.empty?
  
  # Determine if this is for a specific post or the main page
  is_post = !post_data.nil?
  
  # Get the appropriate title, description, and URL
  if is_post
    title = post_data[:"post.title"] || @title
    description = post_data[:"post.blurb"] || (post_data[:"post.body"] ? post_data[:"post.body"][0..200] : nil) || @desc || @subtitle || @title
    slug = post_data[:"post.slug"] || (post_data[:"post.id"] ? slugify(post_data[:"post.id"], title) : 'post')
    url = "posts/#{slug}#{slug.end_with?('.html') ? '' : '.html'}"
    type = "article"
  else
    title = @title
    description = @desc || @subtitle || @title
    url = "index.html"
    type = "website"
  end
  
  # Generate meta tags
  content = ""
  
  # Open Graph meta tags (Facebook, LinkedIn, etc.)
  if platforms.include?("facebook") || platforms.include?("linkedin")
    content << %[<meta property="og:title" content="#{escape_html(title)}">\n]
    content << %[<meta property="og:type" content="#{type}">\n]
    content << %[<meta property="og:url" content="#{url}">\n]
    content << %[<meta property="og:description" content="#{escape_html(description)}">\n]
    content << %[<meta property="og:site_name" content="#{escape_html(@title)}">\n]
    if is_post && post_data[:"post.pubdate"]
      content << %[<meta property="article:published_time" content="#{post_data[:"post.pubdate"]}">\n]
    end
  end
  
  # Twitter Card meta tags
  if platforms.include?("twitter")
    content << %[<meta name="twitter:card" content="summary">\n]
    content << %[<meta name="twitter:title" content="#{escape_html(title)}">\n]
    content << %[<meta name="twitter:description" content="#{escape_html(description)}">\n]
    content << %[<meta name="twitter:url" content="#{url}">\n]
  end
  
  content
end

#get_common_js(view = nil) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 677

def get_common_js(view = nil)
  global_js = @root/:config/"common.js"
  view_js   = @dir/:config/"common.js"
  js_file = view ? view_js : global_js
  code = read_file(js_file)
  return %[<script>#{code}</script>\n]
end

#get_page_link(filename) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 476

def get_page_link(filename)
  # Check if the page file exists
  page_file = @dir/:pages/"#{filename}.html"
  
  if File.exist?(page_file)
    # Page exists, return relative path
    link_url = "pages/#{filename}.html"
    warning = nil
  else
    # Page doesn't exist, still create link but warn
    link_url = "pages/#{filename}.html"
    warning = "Warning: Page file '#{filename}.html' not found in pages directory"
  end
  
  [link_url, warning]
end

#inspect ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 51

def inspect
  "<View: #@name #{@title.inspect} theme: #@theme>"
end

#paginate_posts ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 886

def paginate_posts
  config = read_post_index_config
  posts = @repo.all_posts(self)
  posts.sort! {|a,b| post_compare(a, b) }
  @ppp ||= config[:"posts.per.page"].to_i
  pages = []
  posts.each_slice(@ppp).with_index do |group, i|
    pages << group.map {|post| post_index_entry(post) }
  end
  out = self.dir/:output
  pages.each.with_index do |page, i|
    bar = pagination_bar(page, pages.size, i+1)
    # Wrap rows in a table to preserve layout (match non-paginated index)
    margin_top = config[:"index.margin.top"] || "0px"
    cellpadding = config[:'entry.cellpadding']
    table_open = %(<table width=100% cellpadding=#{cellpadding} style="margin-top: #{margin_top};">)
    table_close = %(</table>)
    html = String.new
    html << table_open
    html << page.join
    html << table_close
    html << %[<div style="position: absolute; bottom: 0; width: 100%;">#{bar}</div>]
    write_file(out/"page#{i+1}.html", html)
  end
  # Remove existing link if it exists, then create new one
  post_index_link = out/"post_index.html"
  File.delete(post_index_link) if File.exist?(post_index_link)
  FileUtils.ln(out/"page1.html", post_index_link)
end

#pagination_bar(group, count, nth) ⇒ Object

nth group of total ‘count’



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# File 'lib/scriptorium/view.rb', line 873

def pagination_bar(group, count, nth)  # nth group of total 'count'
  str = %[<div style="text-align: center;">Pages: ]
  1.upto(count) do |i|
    if i == nth  # 0-based
      str << "<b>[#{i}]</b>&nbsp;&nbsp;"
    else
      str << %[<a href="javascript:void(0)" style="text-decoration: none;"
                onclick="load_main('page#{i}.html')">#{i}&nbsp;&nbsp;</a>]
    end
  end
  str << "<br><br></div>"
end

#parse_navbar_content(content) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 374

def parse_navbar_content(content)
  menu_items = []
  current_dropdown = nil
  
  content.lines.each do |line|
    line = line.rstrip  # Keep leading spaces, remove trailing
    next if line.empty? || line.start_with?('#')
    
    if line.start_with?('=')
      # Top-level dropdown item
      label = line[1..-1].strip
      current_dropdown = { type: :dropdown, label: label, children: [] }
      menu_items << current_dropdown
    elsif line.start_with?(' ')
      # Child of previous dropdown
      if current_dropdown
        # Remove leading spaces and split on multiple spaces
        clean_line = line.strip
        if clean_line.include?('  ')  # Look for multiple spaces
          parts = clean_line.split(/\s{2,}/, 2)  # Split on 2+ spaces
          if parts.length >= 2
            title, filename = parts[0], parts[1]
            current_dropdown[:children] << { type: :child, title: title, filename: filename }
          end
        end
      end
    elsif line.start_with?('-')
      # Top-level item (no children)
      clean_line = line[1..-1].strip
      if clean_line.include?('  ')  # Look for multiple spaces
        parts = clean_line.split(/\s{2,}/, 2)  # Split on 2+ spaces
        if parts.length >= 2
          title, filename = parts[0], parts[1]
          menu_items << { type: :item, title: title, filename: filename }
        end
      end
    end
  end
  
  menu_items
end

#placeholder_text(str) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 162

def placeholder_text(str)
  if str.start_with?("@")
    file = @dir/:config/:text/"#{str[1..]}"
    read_file(file, missing_fallback: "[Missing: #{file}]")
  else
    str
  end
end

#post_index_array ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 626

def post_index_array
  posts = view_posts.sort {|a,b| post_compare(a, b) }
  posts.map {|post| post_index_entry(post)}
end

#post_index_entry(post) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 598

def post_index_entry(post)
  template = support_data('templates/index_entry.lt3')
  config = read_post_index_config
  vars = post.vars.merge(config)
  
  # Add formatted_date to vars (use post.date to get pubdate/created fallback)
  date_format = config[:"entry.date.format"] || "month dd break yyyy"
  vars[:formatted_date] = format_date(date_format, post.date)
  
  entry = substitute(vars, template)
  entry
end

#read_layout ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 71

def read_layout
  layout_file = @dir/:config/"layout.txt"
  
  need(:file, layout_file, LayoutFileMissing)
  
  lines = read_commented_file(layout_file)
  containers = {}
  secs = []
  lines.each do |line| 
    sec, args = line.split(/\s+/, 2)
    containers[sec] = (args || "")
    secs << sec
  end
  directives = %w[header footer left right main]
  secs.each {|sec| raise LayoutHasUnknownTag(sec) unless directives.include?(sec)}
  directives.each {|sec| raise LayoutHasDuplicateTags(sec) if lines.count(sec) > 1}
  containers
end

#read_post_index_config ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 611

def read_post_index_config
  # Read global defaults first
  global_config_file = @repo.root/:config/"post_index_defaults.txt"
  global_config = File.exist?(global_config_file) ? parse_commented_file(global_config_file) : {}
  
  # Read view-specific overrides
  view_config_file = @dir/:config/"post_index.txt"
  view_config = File.exist?(view_config_file) ? parse_commented_file(view_config_file) : {}
  
  # Merge: view config overrides global defaults
  global_config.merge(view_config)
rescue => e
  {}
end

#section_append(sec, str) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 171

def section_append(sec, str)
  file = @dir/:config/"#{sec}.txt"
  text = read_file(file)
  text << str
  write_file(file, text)
end

#section_core(section, hash) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 184

def section_core(section, hash)
  cfg = @dir/:config
  sectxt = cfg/"#{section}.txt"
  
  # Only add placeholder if section has no real content
  lines = read_commented_file(sectxt)
  if lines.empty? && section != "main"
    section_append(section, "\ntext This is #{section}...")
    lines = read_commented_file(sectxt)
  end
  
  result = "<!-- Section: #{section} (output) -->\n"
  lines.each do |line|
    component, arg = line.split(/\s+/, 2)
    
    # Handle malformed config lines
    if component.nil? || component.strip.empty?
      result << "<!-- Invalid config line: #{line.inspect} -->\n"
      next
    end
    
    component = component.downcase
    if hash.key?(component)
      result << hash[component].call(arg)
    else
      result << "<!-- Unknown component: #{component} -->\n"
    end
  end
  result
end

#section_hash(section) ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 178

def section_hash(section)
  hash = Hash.new { |hash, key| ->(arg = nil) { "<!-- Not defined for key: #{key} -->\n" } }
  hash["text"] = ->(arg) { "  <p>" + placeholder_text(arg) + "</p>\n" }
  hash
end

#view_posts ⇒ Object 



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# File 'lib/scriptorium/view.rb', line 631

def view_posts
  @repo.all_posts(self).sort {|a,b| post_compare(a, b)}
end