Class: Spider::TemplateBlocks::Widget

Inherits:
Block show all
Defined in:
lib/spiderfw/templates/blocks/widget.rb

Instance Attribute Summary

Attributes inherited from Block

#allowed_blocks, #doctype, #el, #template

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Block

#compile_content, #compile_text, #escape_text, #get_following, #initialize, #inspect, #parse_content, var_to_scene, #var_to_scene, #vars_to_scene, vars_to_scene

Constructor Details

This class inherits a constructor from Spider::TemplateBlocks::Block

Class Method Details

.attributes_to_init_params(attributes) ⇒ Object 



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# File 'lib/spiderfw/templates/blocks/widget.rb', line 7

def self.attributes_to_init_params(attributes)
    init_params = []
    attributes.each do |key, val|
        if (!val.empty? && val[0].chr == '@')
            sval = var_to_scene(val, 'scene')
        elsif (!val.empty? && val[0].chr == '$')
            sval = val[1..-1]
        else
            sval = '"'+val+'"'
        end
        init_key = key
        init_key = "\"#{init_key}\"" unless key =~ /^[\w\d]+$/
        init_params << ":#{init_key} => #{sval}"
    end
    init_params
end

Instance Method Details

#compile(options = {}) ⇒ Object

Raises:



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# File 'lib/spiderfw/templates/blocks/widget.rb', line 24

def compile(options={})
    klass = Spider::Template.get_registered_class(@el.name)
    init_params = []
    id = @el.get_attribute('id')
    raise TemplateCompileError, "Widget #{@el.name} does not have an id" unless id
    template_attr = @el.get_attribute('template')
    @el.remove_attribute('template')
    if klass.respond_to?(:compile_block)
        init, c = klass.compile_block(@el, id, @el.attributes.to_hash, options)
        return CompiledBlock.new(init, c)
    end

    html = ""
    @el.each_child do |ch|
        html += ch.to_html
    end
    runtime_content, overrides = klass.parse_content_xml(html)

    template = nil
    overrides += @template.overrides_for(id)
    
    asset_profiles = @el.get_attribute('sp:asset-profiles')
    if asset_profiles
        asset_profiles = asset_profiles.split(/,\s*/).map{ |pr| pr.to_sym } 
        @el.remove_attribute('sp:asset-profiles')
    end
    
    template = klass.load_template(template_attr || klass.default_template)
    template.asset_profiles = asset_profiles if asset_profiles
    # @template is the containing template, template is the widget's template
    if overrides.length > 0
        template.add_overrides overrides
        @template.add_subtemplate(id, template, klass)
    else
        @template.add_widget_template(template, klass)
    end

    init = ""
    t_param = 'nil'
    t_options = {}
    
    t_options[:asset_profiles] = asset_profiles if asset_profiles
    
    if (template)
        # FIXME: the subtemplate shouldn't be loaded at this point
        init = "t = load_subtemplate('#{id}', #{t_options.inspect})\n"
        t_param = 't'
    end
    html.gsub!("'", "\\\\'")
    
    init_params = self.class.attributes_to_init_params(@el.attributes.to_hash)
    runtime_content.gsub!("'", "\\\\'") if runtime_content
    
    init += "add_widget('#{id}', #{klass}.new(@request, @response), {#{init_params.join(', ')}}, '#{runtime_content}', #{t_param})\n"
    c = "yield :\"#{id}\"\n"
    return CompiledBlock.new(init, c)
end