Class: Browser::DOM::MutationObserver::Record

Inherits:
Object
  • Object
show all
Includes:
NativeCachedWrapper
Defined in:
opal/browser/dom/mutation_observer.rb

Overview

Encapsulates a recorded change.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from NativeCachedWrapper

#restricted?, #set_native_reference

Instance Attribute Details

#added ⇒ NodeSet (readonly)

Returns the added nodes.

Returns:



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# File 'opal/browser/dom/mutation_observer.rb', line 46

def added
  array = if `#@native.addedNodes != null`
    Native::Array.new(`#@native.addedNodes`)
  else
    []
  end

  NodeSet[array]
end

#name ⇒ String (readonly)

Returns the name of the attribute.

Returns:

  • (String) —

    the name of the attribute



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# File 'opal/browser/dom/mutation_observer.rb', line 80

alias_native :name, :attributeName

#namespace ⇒ String (readonly)

Returns the namespace of the attribute.

Returns:

  • (String) —

    the namespace of the attribute



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# File 'opal/browser/dom/mutation_observer.rb', line 84

alias_native :namespace, :attributeNamespace

#old ⇒ String (readonly)

Returns the old value.

Returns:



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# File 'opal/browser/dom/mutation_observer.rb', line 76

alias_native :old, :oldValue

#removed ⇒ NodeSet (readonly)

Returns the removed nodes.

Returns:



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# File 'opal/browser/dom/mutation_observer.rb', line 58

def removed
  array = if `#@native.removedNodes != null`
    Native::Array.new(`#@native.removedNodes`)
  else
    []
  end

  NodeSet[array]
end

#target ⇒ Node (readonly)

Returns the node the mutation affected.

Returns:

  • (Node) —

    the node the mutation affected



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# File 'opal/browser/dom/mutation_observer.rb', line 70

def target
  DOM(`#@native.target`)
end

#type ⇒ :attributes, ... (readonly)

Returns the type of the recorded change.

Returns:

  • (:attributes, :tree, :cdata) —

    the type of the recorded change



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# File 'opal/browser/dom/mutation_observer.rb', line 21

def type
  case `#@native.type`
  when :attributes    then :attribute
  when :childList     then :tree
  when :characterData then :cdata
  end
end

Instance Method Details

#attribute? ⇒ Boolean

Returns true if the change happened on attributes.

Returns:

  • (Boolean) 


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# File 'opal/browser/dom/mutation_observer.rb', line 30

def attribute?
  type == :attribute
end

#cdata? ⇒ Boolean

Returns true if the change happened in a CDATA section.

Returns:

  • (Boolean) 


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# File 'opal/browser/dom/mutation_observer.rb', line 40

def cdata?
  type == :cdata
end

#tree? ⇒ Boolean

Returns true if the change happened on the tree.

Returns:

  • (Boolean) 


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# File 'opal/browser/dom/mutation_observer.rb', line 35

def tree?
  type == :tree
end