Class: Bluesky::ViewController

Inherits:
Object
  • Object
show all
Includes:
ConditionHelper, DOMHelper, DSL, TryHelper, Clearwater::Component
Defined in:
lib/bluesky/view_controller.rb

Direct Known Subclasses

NavigationController

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from DSL

tag

Constructor Details

#initialize(*_, children: [], parent: nil, data: {}) ⇒ ViewController

Returns a new instance of ViewController.



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# File 'lib/bluesky/view_controller.rb', line 40

def initialize(*_, children: [], parent: nil, data: {})
  @children = children
  @parent = parent
  @data = data
  @appearance = :disappeared
  @force_update = false
  @delegate = self
end

Instance Attribute Details

#appearance ⇒ Object

Returns the value of attribute appearance.



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# File 'lib/bluesky/view_controller.rb', line 38

def appearance
  @appearance
end

#children ⇒ Object

Returns the value of attribute children.



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# File 'lib/bluesky/view_controller.rb', line 38

def children
  @children
end

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/bluesky/view_controller.rb', line 38

def data
  @data
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/bluesky/view_controller.rb', line 38

def parent
  @parent
end

Class Method Details

.attribute(name, *args, &block) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 15

def self.attribute(name, *args, &block)
  case args.length
  when 0
    define_method(name) { data.fetch(name) }
  when 1
    if args[0].respond_to?(:call)
      define_method(name) { data.fetch(name) { data.store(name, args[0].call) } }
    else
      define_method(name) { data.fetch(name, args[0]) }
    end
  else
    raise ArgumentError, %{ wrong number of arguments
                            (#{args.length} for 1..2) }
  end
  define_method("#{name}=") { |value| data.store(name, value) }
end

.inherited(subclass) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 32

def self.inherited(subclass)
  define_method(subclass.name) do |**data|
    subclass.new(delegate: self, data: data)
  end
end

Instance Method Details

#add_child_view_controller(view_controller) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 96

def add_child_view_controller(view_controller)
  view_controller.will_move_to_parent_view_controller(self)
  view_controller.remove_from_parent_view_controller
  children.push(view_controller)
  view_controller.parent = self
  view_controller.did_move_to_parent_view_controller(self)
end

#begin_appearance_transition(appearing) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 69

def begin_appearance_transition(appearing)
  if appearing
    return unless @appearance == :disappeared
    # raise "Invalid appearance #{@appearance} when appearing" if @appearance != :disappeared
    @appearance = :appearing
    view_will_appear()
  else
    return unless @appearance == :appeared
    # raise "Invalid appearance #{@appearance} when disappearing" if @appearance != :appeared
    @appearance = :disappearing
    view_will_disappear()
  end
end

#did_move_to_parent_view_controller(view_controller) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 131

def did_move_to_parent_view_controller(view_controller)
end

#dismiss ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 117

def dismiss
  raise 'not implemented'
end

#dispatch(target, action, *payload, &block) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 61

def dispatch(target, action, *payload, &block)
  try(parent, :dispatch, target, action, *payload, &block)
end

#end_appearance_transition ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 83

def end_appearance_transition()
  case @appearance
  when :appearing
    @appearance = :appeared
    view_did_appear()
  when :disappearing
    @appearance = :disappeared
    view_did_disappear()
  else
    # raise "Invalid appearance #{@appearance} when transitioning"
  end
end

#force_update ⇒ Object

Dispatch methods



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# File 'lib/bluesky/view_controller.rb', line 148

def force_update
  @force_update = true
  @parent.refresh do
    @force_update = false
    yield if block_given?
  end
end

#force_update? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bluesky/view_controller.rb', line 49

def force_update?
  @force_update
end

#navigation_controller ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 121

def navigation_controller
  parent.is_a?(NavigationController) ? parent :
    try(parent, :navigation_controller)
end

#notify(source, event, *payload) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 65

def notify(source, event, *payload)
  try(parent, :notify, source, event, *payload)
end

#present(_view_controller) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 113

def present(_view_controller)
  raise 'not implemented'
end

#refresh(&block) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 156

def refresh(&block)
  @parent.refresh(&block)
end

#remove_from_parent_view_controller ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 104

def remove_from_parent_view_controller
  return unless parent
  parent.children.delete(self)
end

#render ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 57

def render
  view
end

#show(_view_controller) ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 109

def show(_view_controller)
  raise 'not implemented'
end

#view ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 53

def view
  nil
end

#view_did_appear ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 137

def view_did_appear
end

#view_did_disappear ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 143

def view_did_disappear
end

#view_will_appear ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 134

def view_will_appear
end

#view_will_disappear ⇒ Object 



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# File 'lib/bluesky/view_controller.rb', line 140

def view_will_disappear
end

#will_move_to_parent_view_controller(view_controller) ⇒ Object

Callbacks



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# File 'lib/bluesky/view_controller.rb', line 128

def will_move_to_parent_view_controller(view_controller)
end