Class: Weather

Inherits:
Object
  • Object
show all
Includes:
Glimmer::UI::CustomShell
Defined in:
lib/glimmer-dsl-opal/samples/elaborate/weather.rb

Constant Summary collapse

DEFAULT_FONT_HEIGHT = 
30
DEFAULT_FOREGROUND = 
:white
DEFAULT_BACKGROUND = 
rgb(135, 176, 235)

Instance Attribute Summary collapse

Attributes included from Glimmer::UI::CustomWidget

#body_root, #options, #parent, #swt_style

Instance Method Summary collapse

Methods included from Glimmer::UI::CustomShell

#close, encoded_request_parameter_string, #hide, included, #initialize, #open, request_parameter_string, requested?, requested_and_not_handled?, #show, #start_event_loop, #visible?

Methods included from Glimmer::UI::CustomWidget

add_custom_widget_namespaces_for, #add_observer, #async_exec, #attribute_setter, #can_add_observer?, #can_handle_observation_request?, #content, custom_widget_namespaces, for, #get_attribute, #handle_observation_request, #has_attribute?, #has_instance_method?, #has_style?, included, #initialize, #local_respond_to?, #method_missing, namespaces_for_class, #post_initialize_child, reset_custom_widget_namespaces, #respond_to?, #set_attribute, #sync_exec

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::UI::CustomWidget

Instance Attribute Details

#city ⇒ Object

Returns the value of attribute city.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def city
  @city
end

#feels_like ⇒ Object

Returns the value of attribute feels_like.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def feels_like
  @feels_like
end

#humidity ⇒ Object

Returns the value of attribute humidity.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def humidity
  @humidity
end

#temp ⇒ Object

Returns the value of attribute temp.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def temp
  @temp
end

#temp_max ⇒ Object

Returns the value of attribute temp_max.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def temp_max
  @temp_max
end

#temp_min ⇒ Object

Returns the value of attribute temp_min.



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 33

def temp_min
  @temp_min
end

Instance Method Details

#celsius_to_fahrenheit(celsius) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 146

def celsius_to_fahrenheit(celsius)
  return nil if celsius.nil?
  (celsius * 9 / 5 ) + 32
end

#fetch_weather! ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 118

def fetch_weather!
  @weather_mutex.synchronize do
    self.weather_data = JSON.parse(Net::HTTP.get('api.openweathermap.org', "/data/2.5/weather?q=#{city}&appid=1d16d70a9aec3570b5cbd27e6b421330"))
  end
rescue => e
  Glimmer::Config.logger.error "Unable to fetch weather due to error: #{e.full_message}"
end

#humidity_field ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 99

def humidity_field
  name_label('humidity')
  label {
    layout_data(:fill, :center, true, false)
    text <= [self, 'humidity', on_read: ->(h) { "#{h.to_f.round}%" }]
    font height: DEFAULT_FONT_HEIGHT
    foreground DEFAULT_FOREGROUND
  }
end

#kelvin_to_celsius(kelvin) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 141

def kelvin_to_celsius(kelvin)
  return nil if kelvin.nil?
  kelvin - 273.15
end

#kelvin_to_fahrenheit(kelvin) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 151

def kelvin_to_fahrenheit(kelvin)
  return nil if kelvin.nil?
  celsius_to_fahrenheit(kelvin_to_celsius(kelvin))
end

#kelvin_to_temp_unit(kelvin, temp_unit) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 137

def kelvin_to_temp_unit(kelvin, temp_unit)
  temp_unit == '℃' ? kelvin_to_celsius(kelvin) : kelvin_to_fahrenheit(kelvin)
end

#name_label(field_name) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 109

def name_label(field_name)
  label {
    layout_data :fill, :center, false, false
    text field_name.titlecase
    font height: DEFAULT_FONT_HEIGHT
    foreground DEFAULT_FOREGROUND
  }
end

#temp_field(field_name, temp_unit) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 89

def temp_field(field_name, temp_unit)
  name_label(field_name)
  label {
    layout_data(:fill, :center, true, false)
    text <= [self, field_name, on_read: ->(t) { "#{kelvin_to_temp_unit(t, temp_unit).to_f.round}°" }]
    font height: DEFAULT_FONT_HEIGHT
    foreground DEFAULT_FOREGROUND
  }
end

#weather_data=(data) ⇒ Object 



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# File 'lib/glimmer-dsl-opal/samples/elaborate/weather.rb', line 126

def weather_data=(data)
  @weather_data = data
  main_data = data['main']
  # temps come back in Kelvin
  self.temp = main_data['temp']
  self.temp_min = main_data['temp_min']
  self.temp_max = main_data['temp_max']
  self.feels_like = main_data['feels_like']
  self.humidity = main_data['humidity']
end