Class: EasyAdmin::Layouts::Nodes::BaseNode

Inherits:
Object
  • Object
show all
Defined in:
lib/easy_admin/layouts/nodes/base_node.rb

Overview

Base class for all layout AST nodes

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}, &block) ⇒ BaseNode

Returns a new instance of BaseNode.



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 8

def initialize(attributes = {}, &block)
  @attributes = attributes.dup
  @visible_if = @attributes.delete(:visible_if)
  @metadata = @attributes.delete(:metadata) || {}
  @children = []
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 6

def attributes
  @attributes
end

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 6

def children
  @children
end

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 6

def metadata
  @metadata
end

#visible_if ⇒ Object (readonly)

Returns the value of attribute visible_if.



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 6

def visible_if
  @visible_if
end

Instance Method Details

#[](key) ⇒ Object

Get attribute value



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 48

def [](key)
  @attributes[key]
end

#[]=(key, value) ⇒ Object

Set attribute value



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 53

def []=(key, value)
  @attributes[key] = value
end

#accept(visitor, context) ⇒ Object

Accept visitor for traversal



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 38

def accept(visitor, context)
  visitor.visit(self, context) if visible?(context)
end

#add_child(node) ⇒ Object

Add child node



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 43

def add_child(node)
  @children << node if node.is_a?(BaseNode)
end

#children? ⇒ Boolean

Check if node has children

Returns:

  • (Boolean) 


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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 58

def children?
  @children.any?
end

#node_type ⇒ Object

Node type for identification



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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 63

def node_type
  self.class.name.demodulize.underscore.to_sym
end

#visible?(context) ⇒ Boolean

Check if node should be visible based on context

Returns:

  • (Boolean) 


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# File 'lib/easy_admin/layouts/nodes/base_node.rb', line 16

def visible?(context)
  return true unless visible_if
  
  case visible_if
  when Proc
    # Evaluate in safe context
    context.instance_exec(&visible_if)
  when Symbol
    # Call method on record
    context.record.public_send(visible_if) if context.record.respond_to?(visible_if)
  when String
    # Evaluate as method chain (e.g., "record.published?")
    eval_method_chain(context, visible_if)
  else
    # Direct boolean value
    !!visible_if
  end
rescue => e
  true # Default to visible on error
end