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base.rb
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base.rb
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# typed: strict
require_relative "handler_ref"
module Mayu
module Component
class Base
extend T::Sig
extend T::Helpers
abstract!
sig do
params(
styles: T::Hash[Symbol, String],
assets: T::Array[String]
).returns(T.class_of(Base))
end
def self.setup_component(styles:, assets:)
T.unsafe(
class << self
self
end
).undef_method(T.must(__method__))
const_set(
:MAYU,
{ styles: styles.freeze, assets: assets.freeze }.freeze
)
self
end
sig { overridable.params(props: T.untyped).returns(Component::State) }
def self.get_initial_state(**props)
{}
end
class << self
extend T::Sig
sig { void }
def initialize
# This will never be called but will make Sorbet happy
@__mayu_resource = T.let(nil, T.nilable(Resources::Resource))
end
# TODO: Probably better use a WeakMap in Resources for this..
sig { params(__mayu_resource: Resources::Resource).void }
attr_writer :__mayu_resource
sig { returns(T.nilable(Resources::Resource)) }
def __mayu_resource
@__mayu_resource
end
sig { returns(Resources::Resource) }
def __mayu_resource!
@__mayu_resource or raise "__mayu_resource is not set"
end
sig { returns(T::Boolean) }
def __mayu_resource?
!!@__mayu_resource
end
end
sig do
overridable
.params(props: Component::Props, state: Component::State)
.returns(T.nilable(Component::State))
end
def self.get_derived_state_from_props(props, state)
nil
end
sig { params(wrapper: Wrapper).void }
def initialize(wrapper)
@__wrapper = wrapper
end
sig { returns(State) }
def state = mayu.state
sig { returns(Props) }
def props = mayu.props
sig { returns(String) }
def vnode_id = @__wrapper.vnode_id
sig { overridable.void }
def mount
end
sig { overridable.void }
def unmount
end
sig do
overridable
.params(next_props: Component::Props, next_state: Component::State)
.returns(T::Boolean)
end
def should_update?(next_props, next_state)
case
when props != next_props
true
when state != next_state
true
else
false
end
end
sig do
overridable
.params(prev_props: Component::Props, prev_state: Component::State)
.void
end
def did_update(prev_props, prev_state)
end
INLINE_CSS_ASSETS = T.let([], T::Array[String])
sig { returns(T::Array[String]) }
def self.assets
[self.stylesheet&.assets, const_get(:INLINE_CSS_ASSETS)].flatten
.compact
.map(&:filename)
end
# TODO: Could probably clean this up...
sig { returns(T.nilable(Resources::Types::Stylesheet)) }
def self.stylesheet = nil
sig { returns(Resources::Types::Stylesheet) }
def self.stylesheet! =
stylesheet ||
raise(RuntimeError, "There is no stylesheet for this component!")
sig { returns(Resources::Types::Stylesheet::ClassNames) }
def self.styles
Resources::Types::Stylesheet::ClassNames.new({})
end
sig { returns(Resources::Types::Stylesheet::ClassNames) }
def styles = self.class.styles
sig { params(blk: T.proc.bind(T.self_type).void).void }
def async(&blk) = @__wrapper.async(&blk)
sig { abstract.returns(ChildType) }
def render
end
sig do
params(name: Symbol, args: T.untyped, kwargs: T.untyped).returns(
HandlerRef
)
end
def handler(name, *args, **kwargs)
HandlerRef.new(self, name, args, kwargs)
end
sig { returns(Helpers) }
def mayu = @__wrapper.helpers
alias helpers mayu
sig do
params(
state: T.nilable(State),
blk: T.nilable(Wrapper::UpdateProc)
).void
end
def update(state = nil, &blk)
@__wrapper.update(state, &blk)
end
sig { returns(VDOM::Children) }
def children = props[:children]
end
end
end