Module: ProMotion::MapScreenModule

Included in:
MapScreen
Defined in:
lib/ProMotion/map/map_screen_module.rb

Defined Under Namespace

Modules: MapClassMethods

Constant Summary collapse

PIN_COLORS = 
{
  red: UIColor.redColor,
  green: UIColor.greenColor,
  purple: UIColor.purpleColor
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 439

def self.included(base)
  base.extend(MapClassMethods)
end

Instance Method Details

#add_annotation(annotation) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 113

def add_annotation(annotation)
  @promotion_annotation_data << MapScreenAnnotation.new(annotation)
  self.view.addAnnotation @promotion_annotation_data.last
end

#add_annotations(annotations) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 118

def add_annotations(annotations)
  @promotion_annotation_data = Array(annotations).map{|a| MapScreenAnnotation.new(a)}
  self.view.addAnnotations @promotion_annotation_data
end

#annotations ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 89

def annotations
  @promotion_annotation_data
end

#center ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 39

def center
  self.view.centerCoordinate
end

#center=(params = {}) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 43

def center=(params={})
  PM.logger.error "Missing #:latitude property in call to #center=." unless params[:latitude]
  PM.logger.error "Missing #:longitude property in call to #center=." unless params[:longitude]
  params[:animated] ||= true

  # Set the new region
  self.view.setCenterCoordinate(
    CLLocationCoordinate2D.new(params[:latitude], params[:longitude]),
    animated:params[:animated]
  )
end

#check_annotation_data ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 25

def check_annotation_data
  PM.logger.error "Missing #annotation_data method in MapScreen #{self.class.to_s}." unless self.respond_to?(:annotation_data)
end

#clear_annotation(annotation) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 123

def clear_annotation(annotation)
  self.view.removeAnnotation(annotation)
  @promotion_annotation_data.delete(annotation)
end

#clear_annotations ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 128

def clear_annotations
  self.view.removeAnnotations(@promotion_annotation_data)
  @promotion_annotation_data = []
end

#create_region(initialLocation, radius = 10) ⇒ Object Also known as: region 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 267

def create_region(initialLocation,radius=10)
  return nil unless initialLocation.is_a? CLLocationCoordinate2D
  radius = radius * 1.820 # Meters equivalent to 1 Nautical Mile
  southWest = self.point_from_location_bearing_and_distance(initialLocation,225, radius)
  northEast = self.point_from_location_bearing_and_distance(initialLocation,45, radius)
  {:southWest => southWest, :northEast => northEast}
end

#deg_to_rad(angle) ⇒ Object

REGION SETTINGS #######



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# File 'lib/ProMotion/map/map_screen_module.rb', line 236

def deg_to_rad(angle)
  angle*Math::PI/180
end

#deselect_annotations(animated = false) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 105

def deselect_annotations(animated=false)
  unless selected_annotations.nil?
    selected_annotations.each do |annotation|
      self.view.deselectAnnotation(annotation, animated:animated)
    end
  end
end

#gesture_drop_pin(gesture_recognizer) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 168

def gesture_drop_pin(gesture_recognizer)
  if gesture_recognizer.state == UIGestureRecognizerStateBegan
    NSNotificationCenter.defaultCenter.postNotificationName("ProMotionMapWillAddPin", object:nil)
    touch_point = gesture_recognizer.locationInView(self.view)
    touch_map_coordinate = self.view.convertPoint(touch_point, toCoordinateFromView:self.view)

    add_annotation({
      coordinate: touch_map_coordinate
    }.merge(@tap_to_add_annotation_params))
    NSNotificationCenter.defaultCenter.postNotificationName("ProMotionMapAddedPin", object:@promotion_annotation_data.last)
  end
end

#hide_user_location ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 63

def hide_user_location
  set_show_user_location false
end

#look_up_address(args = {}, &callback) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 286

def look_up_address(args={}, &callback)
  args[:address] = args if args.is_a? String # Assume if a string is passed that they want an address

  geocoder = CLGeocoder.new
  return geocoder.geocodeAddressDictionary(args[:address], completionHandler: callback) if args[:address].is_a?(Hash)
  return geocoder.geocodeAddressString(args[:address].to_s, completionHandler: callback) unless args[:region]
  return geocoder.geocodeAddressString(args[:address].to_s, inRegion:args[:region].to_s, completionHandler: callback) if args[:region]
end

#look_up_location(location, &callback) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 295

def look_up_location(location, &callback)
  location = CLLocation.alloc.initWithLatitude(location.latitude, longitude:location.longitude) if location.is_a?(CLLocationCoordinate2D)

  if location.kind_of?(CLLocation)
    geocoder = CLGeocoder.new
    geocoder.reverseGeocodeLocation(location, completionHandler: callback)
  else
    PM.logger.info("You're trying to reverse geocode something that isn't a CLLocation")
    callback.call nil, nil
  end
end

#map ⇒ Object Also known as: mapview 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 34

def map
  self.view
end

#mapView(map_view, regionDidChangeAnimated: animated) ⇒ Object

Cocoa touch methods #################



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# File 'lib/ProMotion/map/map_screen_module.rb', line 308

def mapView(mapView, annotationCanShowCallout: annotation)
  return nil if annotation.is_a? MGLUserLocation
  annotation.params[:show_callout]
end

#on_appear ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 21

def on_appear
  update_annotation_data
end

#point_from_location_bearing_and_distance(initialLocation, bearing, distance) ⇒ Object

Input coordinates and bearing in decimal degrees, distance in kilometers



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# File 'lib/ProMotion/map/map_screen_module.rb', line 245

def point_from_location_bearing_and_distance(initialLocation, bearing, distance)
  distance = distance / 6371.01 # Convert to angular radians dividing by the Earth radius
  bearing = deg_to_rad(bearing)
  input_latitude = deg_to_rad(initialLocation.latitude)
  input_longitude = deg_to_rad(initialLocation.longitude)

  output_latitude = Math.asin( 
                      Math.sin(input_latitude) * Math.cos(distance) + 
                      Math.cos(input_latitude) * Math.sin(distance) * 
                      Math.cos(bearing)
                    )

  dlon = input_longitude + Math.atan2(
                            Math.sin(bearing) * Math.sin(distance) * 
                            Math.cos(input_longitude), Math.cos(distance) - 
                            Math.sin(input_longitude) * Math.sin(output_latitude)
                          )

  output_longitude = (dlon + 3*Math::PI) % (2*Math::PI) - Math::PI  
  CLLocationCoordinate2DMake(rad_to_deg(output_latitude), rad_to_deg(output_longitude))
end

#rad_to_deg(angle) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 240

def rad_to_deg(angle)
  angle*180/Math::PI
end

#screen_setup ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 10

def screen_setup
  self.view = nil
  self.view = MGLMapView.alloc.initWithFrame(self.view.bounds, styleURL: self.class.get_map_style)
  self.view.delegate = self

  check_annotation_data
  @promotion_annotation_data = []
  set_up_start_position
  set_up_tap_to_add
end

#select_annotation(annotation, animated = true) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 93

def select_annotation(annotation, animated=true)
  self.view.selectAnnotation(annotation, animated:animated)
end

#select_annotation_at(annotation_index, animated = true) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 97

def select_annotation_at(annotation_index, animated=true)
  select_annotation(annotations[annotation_index], animated:animated)
end

#selected_annotations ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 101

def selected_annotations
  self.view.selectedAnnotations
end

#set_map_style ⇒ Object

END REGION SETTINGS ###### MAP STYLE SETTINGS ######



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# File 'lib/ProMotion/map/map_screen_module.rb', line 278

def set_map_style
  if self.class.respond_to?(:get_map_style)
      self.view.styleURL = self.class.get_map_style
  end
end

#set_region(region, animated = true) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 228

def set_region(region, animated=true)
  self.view.setVisibleCoordinateBounds(
    [region[:southWest], region[:northEast]],
    animated: animated
  )
end

#set_show_user_location(show, mode = MGLUserTrackingModeFollow) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 67

def set_show_user_location(show,mode=MGLUserTrackingModeFollow)
  self.view.showsUserLocation = show
  self.view.userTrackingMode = mode
end

#set_start_position(params = {}) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 133

def set_start_position(params={})
  params = {
    latitude: 37.331789,
    longitude: -122.029620,
    radius: 10
  }.merge(params)

  initialLocation = CLLocationCoordinate2D.new(params[:latitude], params[:longitude])
  region = create_region(initialLocation,params[:radius])
  set_region(region, animated:false)
end

#set_tap_to_add(params = {}) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 151

def set_tap_to_add(params={})
  params = {
    length: 2.0,
    target: self,
    action: "gesture_drop_pin:",
    annotation: {
      title: "Dropped Pin",
      animates_drop: true
    }
  }.merge(params)
  @tap_to_add_annotation_params = params[:annotation]

  lpgr = UILongPressGestureRecognizer.alloc.initWithTarget(params[:target], action:params[:action])
  lpgr.minimumPressDuration = params[:length]
  self.view.addGestureRecognizer(lpgr)
end

#set_up_start_position ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 145

def set_up_start_position
  if self.class.respond_to?(:get_start_position) && self.class.get_start_position
    self.set_start_position self.class.get_start_position_params
  end
end

#set_up_tap_to_add ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 181

def set_up_tap_to_add
  if self.class.respond_to?(:get_tap_to_add) && self.class.get_tap_to_add
    self.set_tap_to_add self.class.get_tap_to_add_params
  end
end

#show_user_location ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 55

def show_user_location
  if location_manager.respondsToSelector('requestWhenInUseAuthorization')
    location_manager.requestWhenInUseAuthorization
  end

  set_show_user_location true
end

#showing_user_location? ⇒ Boolean 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 72

def showing_user_location?
  self.view.showsUserLocation
end

#type ⇒ Object

Cocoa touch Ruby counterparts #################



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# File 'lib/ProMotion/map/map_screen_module.rb', line 382

def type
  map.mapType
end

#type=(type) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 386

def type=(type)
  map.mapType = type
end

#update_annotation_data ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 29

def update_annotation_data
  clear_annotations
  add_annotations annotation_data
end

#user_annotation ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 80

def user_annotation
  self.view.userLocation.location.nil? ? nil : self.view.userLocation.location
end

#user_location ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 76

def user_location
  user_annotation.nil? ? nil : user_annotation.coordinate
end

#zoom_to_fit_annotations(args = {}) ⇒ Object

TODO: Why is this so complex?



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# File 'lib/ProMotion/map/map_screen_module.rb', line 188

def zoom_to_fit_annotations(args={})
  # Preserve backwards compatibility
  args = {animated: args} if args == true || args == false
  args = {animated: true, include_user: false}.merge(args)

  ann = args[:include_user] ? (annotations + [user_annotation]).compact : annotations

  #Don't attempt the rezoom of there are no pins
  return if ann.count == 0

  #Set some crazy boundaries
  topLeft = CLLocationCoordinate2D.new(-90, 180)
  bottomRight = CLLocationCoordinate2D.new(90, -180)

  #Find the bounds of the pins
  ann.each do |a|
    topLeft.longitude = [topLeft.longitude, a.coordinate.longitude].min
    topLeft.latitude = [topLeft.latitude, a.coordinate.latitude].max
    bottomRight.longitude = [bottomRight.longitude, a.coordinate.longitude].max
    bottomRight.latitude = [bottomRight.latitude, a.coordinate.latitude].min
  end

  #Find the bounds of all the pins and set the map_view
  coord = CLLocationCoordinate2D.new(
    topLeft.latitude - (topLeft.latitude - bottomRight.latitude) * 0.5,
    topLeft.longitude + (bottomRight.longitude - topLeft.longitude) * 0.5
  )

  # Add some padding to the edges
  span = MKCoordinateSpanMake(
    ((topLeft.latitude - bottomRight.latitude) * 1.075).abs,
    ((bottomRight.longitude - topLeft.longitude) * 1.075).abs
  )

  region = MKCoordinateRegionMake(coord, span)
  fits = self.view.regionThatFits(region)

  set_region(fits, animated: args[:animated])
end

#zoom_to_user(radius = 0.05, animated = true) ⇒ Object 



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# File 'lib/ProMotion/map/map_screen_module.rb', line 84

def zoom_to_user(radius = 0.05, animated=true)
  show_user_location unless showing_user_location?
  set_region(create_region(user_location,radius), animated)
end