Class: DryHamlHandlebars::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/dry_haml_handlebars/handler.rb

Instance Method Summary collapse

Constructor Details

#initialize(template, rendered_haml = nil, view_type, view_name, partial_name, relative_view_path, rabl_path, template_path, compiled_template_path) ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/dry_haml_handlebars/handler.rb', line 184

def initialize(template, rendered_haml = nil, view_type, view_name, partial_name, relative_view_path, rabl_path, template_path, compiled_template_path)
  @template                 = template
  @rendered_haml            = rendered_haml
  @view_type                = view_type
  @view_name                = view_name
  @partial_name             = partial_name
  @relative_view_path       = relative_view_path
  @rabl_path                = rabl_path
  @template_path            = template_path
  @compiled_template_path   = compiled_template_path
end

Instance Method Details

#compile_hbs ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 271

def compile_hbs
  <<-RUBY
    compiled_hbs = HandlebarsAssets::Handlebars.precompile( rendered_haml )
  RUBY
end

#gen_partial_loader ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 300

def gen_partial_loader
  <<-'RUBY'
    hbs_loader = "(function() {
      this.Handlebars.registerPartial('#{partial_name}', Handlebars.template(#{compiled_hbs}));
    }).call(this)"
  RUBY
end

#gen_template_loader ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 290

def gen_template_loader
  <<-'RUBY'
    hbs_loader = "(function() {
      this.HandlebarsTemplates || (this.HandlebarsTemplates = {});
      this.HandlebarsTemplates['#{template_names.last}'] = Handlebars.template(#{compiled_hbs});
      return HandlebarsTemplates['#{template_names.last}'];
    }).call(this)"
  RUBY
end

#get_hbs_context ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 315

def get_hbs_context
  <<-RUBY
    hbs_context = HandlebarsAssets::Handlebars.send(:context)
  RUBY
end

#load_template ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 327

def load_template
  <<-RUBY
    File.open('#{@compiled_template_path}') do |file|
      hbs_context.eval(file.read, '#{@view_name}.js')
    end
  RUBY
end

#name_partial ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 284

def name_partial
  <<-RUBY
    partial_name  = '#{@partial_name}'
  RUBY
end

#name_template ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 277

def name_template
  <<-RUBY
    template_names ||= []
    template_names << '#{File.join(@relative_view_path, @view_name).to_s}'
  RUBY
end

#render_content_for(name, path) ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 380

def render_content_for(name, path)
  
  haml_handler  = ActionView::Template.handler_for_extension :haml
  haml_source   = File.read(path)
  haml_template = ActionView::Template.new(haml_source, path, haml_handler, {})
  haml_call     = haml_handler.call haml_template

  <<-RUBY
    @view_flow.set( :#{name}, eval(%q( #{haml_call} )).html_safe )
  RUBY
  
end

#render_handlebars_partial_command ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 374

def render_handlebars_partial_command
  <<-RUBY
    '{{> #{@partial_name}}}'.html_safe
  RUBY
end

#render_rabl ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 335

def render_rabl
  
  if File.exist? @rabl_path

    rabl_handler  = ActionView::Template.handler_for_extension :rabl
    rabl_source   = File.read(@rabl_path)
    rabl_template = ActionView::Template.new(rabl_source, @rabl_path, rabl_handler, {:locals => @template.locals})
    rabl_call     = rabl_handler.call rabl_template

    <<-RUBY
      rabl_call_str = %q( #{rabl_call} )
      rendered_rabl = eval(rabl_call_str).html_safe
    RUBY
    
  else
    
    <<-RUBY
      rendered_rabl ||= '{}'.html_safe
    RUBY
    
  end
  
end

#render_template ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 367

def render_template
  <<-'RUBY'
    current_template_name = template_names.pop
    hbs_context.eval( "HandlebarsTemplates['#{current_template_name}'](#{rendered_rabl})" )
  RUBY
end

#run ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 196

def run
  
  content_cache = DryHamlHandlebars.content_cache
  out = []

  if @rendered_haml
  
    out << @rendered_haml
    out << compile_hbs
    
    case @view_type
    when :template
      
      out << name_template
      out << gen_template_loader
      
    when :partial
      
      out << name_partial
      out << gen_partial_loader
      
    end

    out << write_asset_files
    out << get_hbs_context
    out << load_template
              
  else #if we don't have any rendered haml (we're probably in production)
    
    out << get_hbs_context
    out << name_template
    
  end

  out << set_locale if defined? SimplesIdeias::I18n

  case @view_type
  when :template
    
    out << render_rabl
    out << set_gon_variable
    
    if content_cache.store.present? #do we need to render some content for another view?

      content_cache.store.each do |item|
        
        name = item.name
        path = item.path
        content_cache.remove_item(item)
        
        #NOTE: this call will overwrite all eval'd variables set below, except for template_names
        #we store this in a stack and pop the last name when we get to render_template()
        #it doesn't matter about the other variables as we're finished with them by this stage
        #and it keeps the eval code simpler if we just reuse them
        
        out << render_content_for(name, path)
        
      end
      content_cache.clear #just to be sure
      
    end
    
    out << render_template
    
  when :partial
    
    out << render_handlebars_partial_command
    
  end
  
  out.join("\n")


end

#set_gon_variable ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 359

def set_gon_variable
  <<-'RUBY'
    Gon::Request.id  = request.object_id
    Gon::Request.env = request.env
    Gon.view_data  ||= JSON.parse(rendered_rabl)
  RUBY
end

#set_locale ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 321

def set_locale
  <<-RUBY
    hbs_context.eval("I18n.locale = '#{I18n.locale.to_s}'")
  RUBY
end

#write_asset_files ⇒ Object 



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# File 'lib/dry_haml_handlebars/handler.rb', line 308

def write_asset_files
  <<-RUBY
    File.open('#{@template_path}',          'w+') {|f| f.write(rendered_haml) }
    File.open('#{@compiled_template_path}', 'w+') {|f| f.write(hbs_loader) }
  RUBY
end