Class: RubyRich::FocusManager

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_rich/focus_manager.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FocusManager

Returns a new instance of FocusManager.



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# File 'lib/ruby_rich/focus_manager.rb', line 7

def initialize
  @entries = []
  @focused_name = nil
end

Instance Attribute Details

#focused_name ⇒ Object (readonly)

Returns the value of attribute focused_name.



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# File 'lib/ruby_rich/focus_manager.rb', line 5

def focused_name
  @focused_name
end

Instance Method Details

#attach(root_layout, priority: 500) ⇒ Object 



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# File 'lib/ruby_rich/focus_manager.rb', line 18

def attach(root_layout, priority: 500)
  root_layout.key(:tab, priority) do |_event_data, _live|
    current = @entries.find { |entry| entry[:name] == @focused_name }
    if current && current[:target].respond_to?(:wants_tab?) && current[:target].wants_tab?
      false
    else
      next_entry = focus_next
      target = next_entry && next_entry[:target]
      target.ignore_next_tab if target.respond_to?(:ignore_next_tab)

      false
    end
  end

  root_layout.key(:mouse_down, priority) do |event_data, _live|
    entry = entry_at(event_data[:x], event_data[:y])
    if entry
      focus(entry[:name])
      false
    else
      false
    end
  end

  self
end

#focus(name) ⇒ Object 



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# File 'lib/ruby_rich/focus_manager.rb', line 45

def focus(name)
  entry = @entries.find { |item| item[:name] == name }
  return nil unless entry

  blur_current
  @focused_name = entry[:name]
  entry[:target].focus if entry[:target].respond_to?(:focus)
  entry
end

#focus_next ⇒ Object 



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# File 'lib/ruby_rich/focus_manager.rb', line 55

def focus_next
  return nil if @entries.empty?

  index = @entries.index { |entry| entry[:name] == @focused_name } || -1
  focus(@entries[(index + 1) % @entries.length][:name])
end

#focused?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruby_rich/focus_manager.rb', line 62

def focused?(name)
  @focused_name == name
end

#register(name, layout, target) ⇒ Object 



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# File 'lib/ruby_rich/focus_manager.rb', line 12

def register(name, layout, target)
  @entries << { name: name, layout: layout, target: target }
  focus(name) unless @focused_name
  self
end