Class: Mayu::VDOM::UpdateContext

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/mayu/vdom/update_context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ UpdateContext

Returns a new instance of UpdateContext.



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# File 'lib/mayu/vdom/update_context.rb', line 12

def initialize
  @patches = T.let([], T::Array[T.untyped])
  @parents = T.let([], T::Array[VNode])
  @dom_parent_ids = T.let([], T::Array[VNode::Id])
  @stylesheets = T.let(Set.new, T::Set[String])
end

Instance Attribute Details

#patches ⇒ Object (readonly)

Returns the value of attribute patches.



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# File 'lib/mayu/vdom/update_context.rb', line 9

def patches
  @patches
end

Instance Method Details

#css(vnode, attr, value = nil) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 119

def css(vnode, attr, value = nil)
  if value
    add_patch(:css, id: vnode.dom_id, attr:, value:)
  else
    add_patch(:css, id: vnode.dom_id, attr:)
  end
end

#dom_parent_id ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 32

def dom_parent_id = @dom_parent_ids.last || "probably root"

#enter(vnode, &blk) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 35

def enter(vnode, &blk)
  # Sleep so that the fiber yields,
  # so that other things can run..
  sleep(0)

  dom_parent_id =
    (vnode.descriptor.element? ? vnode.id : vnode.dom_parent_id)

  @parents.push(vnode)
  @dom_parent_ids.push(dom_parent_id) if dom_parent_id
  yield
ensure
  @dom_parent_ids.pop if dom_parent_id
  @parents.pop
end

#insert(vnode, before: nil, after: nil) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 58

def insert(vnode, before: nil, after: nil)
  html = vnode.to_html
  ids = vnode.id_tree

  if before
    add_patch(
      :insert,
      id: vnode.dom_id,
      parent: dom_parent_id,
      before: before.dom_id,
      html:,
      ids:
    )
  elsif after
    add_patch(
      :insert,
      id: vnode.dom_id,
      parent: dom_parent_id,
      after: after.dom_id,
      html:,
      ids:
    )
  else
    add_patch(
      :insert,
      id: vnode.dom_id,
      parent: dom_parent_id,
      html:,
      ids:
    )
  end
end

#move(vnode, before: nil, after: nil) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 98

def move(vnode, before: nil, after: nil)
  if before
    add_patch(
      :move,
      id: vnode.dom_id,
      parent: vnode.dom_parent_id,
      before: before.dom_id
    )
  elsif after
    add_patch(
      :move,
      id: vnode.dom_id,
      parent: vnode.dom_parent_id,
      after: after.dom_id
    )
  else
    add_patch(:move, id: vnode.dom_id, parent: vnode.dom_parent_id)
  end
end

#parent ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 29

def parent = @parents.last

#remove(vnode) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 142

def remove(vnode)
  if vnode.component
    if child = vnode.children.first
      return remove(child)
    end
  end
  # puts "\e[31mremove\e[0m #{vnode.key}"
  add_patch(:remove, id: vnode.dom_id, parent: vnode.dom_parent_id)
end

#remove_attribute(vnode, name) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 158

def remove_attribute(vnode, name)
  add_patch(:attr, id: vnode.dom_id, name: attr_name(name))
end

#set_attribute(vnode, name, value) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 153

def set_attribute(vnode, name, value)
  add_patch(:attr, id: vnode.dom_id, name: attr_name(name), value:)
end

#stylesheet(hash) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 128

def stylesheet(hash)
  @stylesheets.add(hash)
end

#stylesheet_patch ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 20

def stylesheet_patch
  return [] if @stylesheets.empty?

  paths = @stylesheets.to_a.map { "/__mayu/static/#{_1}" }

  [{ type: :stylesheet, paths: }]
end

#text(vnode, text, append: false) ⇒ Object 



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# File 'lib/mayu/vdom/update_context.rb', line 133

def text(vnode, text, append: false)
  if append
    add_patch(:text, id: vnode.dom_id, append: text)
  else
    add_patch(:text, id: vnode.dom_id, text:)
  end
end