Class: BubbleWrap::Device::Camera

Inherits:
Object
  • Object
show all
Defined in:
motion/core/device/ios/camera.rb

Defined Under Namespace

Modules: Error

Constant Summary collapse

MEDIA_TYPE_HASH =
{movie: KUTTypeMovie, image: KUTTypeImage}
CAMERA_LOCATIONS =
[:front, :rear, :none]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(location = :none) ⇒ Camera

Returns a new instance of Camera



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# File 'motion/core/device/ios/camera.rb', line 61

def initialize(location = :none)
  self.location = location
end

Instance Attribute Details

#locationObject

The camera location; if :none, then we can't use source_type: :camera in #picture

:front, :rear, :none


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# File 'motion/core/device/ios/camera.rb', line 32

def location
  @location
end

Class Method Details

.anyObject Also known as: photo_library



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# File 'motion/core/device/ios/camera.rb', line 50

def any
  @any ||= Camera.new
end

.available?Boolean

Returns:

  • (Boolean)


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# File 'motion/core/device/ios/camera.rb', line 44

def self.available?
  UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceTypeCamera)
end

.frontObject



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# File 'motion/core/device/ios/camera.rb', line 34

def self.front
  return nil if not UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDeviceFront)
  @front ||= Camera.new(:front)
end

.media_type_available?(media_type, for_source_type: source_type) ⇒ Boolean

Parameters:

  • (either (String)

    KUTTypeMovie or KUTTypeImage)

  • (UIImagePickerControllerSourceType)

Returns:

  • (Boolean)


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# File 'motion/core/device/ios/camera.rb', line 227

def self.media_type_available?(media_type, for_source_type: source_type)
  UIImagePickerController.availableMediaTypesForSourceType(source_type).member? media_type
end

.rearObject



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# File 'motion/core/device/ios/camera.rb', line 39

def self.rear
  return nil if not UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDeviceRear)
  @rear ||= Camera.new(:rear)
end

.source_type_available?(source_type) ⇒ Boolean

Parameters:

  • source_type (UIImagePickerControllerSourceType)

    to check

Returns:

  • (Boolean)


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# File 'motion/core/device/ios/camera.rb', line 221

def self.source_type_available?(source_type)
  UIImagePickerController.isSourceTypeAvailable(source_type)
end

Instance Method Details

#dismissObject



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# File 'motion/core/device/ios/camera.rb', line 211

def dismiss
  if @options[:on_dismiss]
    @options[:on_dismiss].call(self.picker)
    return
  end

  self.picker.dismissViewControllerAnimated(@options[:animated], completion: @options[:dismiss_completed])
end

#flash?Boolean

Returns:

  • (Boolean)


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# File 'motion/core/device/ios/camera.rb', line 72

def flash?
  return false if self.location == :none
  UIImagePickerController.isFlashAvailableForCameraDevice(camera_device)
end

#imagePickerController(picker, didFinishPickingMediaWithInfo: info) ⇒ Object

Takes the default didFinishPickingMediaWithInfo hash, transforms the keys to be nicer symbols of :this_form instead of UIImagePickerControllerThisForm, and then sends it to the callback



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# File 'motion/core/device/ios/camera.rb', line 181

def imagePickerController(picker, didFinishPickingMediaWithInfo: info)
  callback_info = {}

  info.keys.each { |k|
    nice_key = k.gsub("UIImagePickerController", "").underscore.to_sym
    val = info[k]
    callback_info[nice_key] = val
    info.delete k
  }

  if media_type = callback_info[:media_type]
    callback_info[:media_type] = media_type_to_symbol(media_type)
  end

  @callback.call(callback_info)
  dismiss
  # iPad popover? close it
  if @popover
    @popover.dismissPopoverAnimated(@options[:animated])
    @popover = nil
  end
end

#imagePickerControllerDidCancel(picker) ⇒ Object

UIImagePickerControllerDelegate Methods



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# File 'motion/core/device/ios/camera.rb', line 172

def imagePickerControllerDidCancel(picker)
  error(Error::CANCELED)
  dismiss
end

#pickerObject

Short Helper Methods



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# File 'motion/core/device/ios/camera.rb', line 206

def picker
  @picker_klass ||= UIImagePickerController
  @picker ||= @picker_klass.alloc.init
end

#picture(options = {}, presenting_controller = nil, &block) ⇒ Object

the form

source_type: :photo_library, :camera, or :saved_photos_album; default :photo_library
media_types: [] containing :image and/or :movie; default [:image]
allows_editing: true/false; default false
animated: true/false; default true
on_dismiss: lambda; default nil

Example BW::Camera.picture(source_type: :photo_library, media_types: [:image]) do |result|

image_view = UIImageView.alloc.initWithImage(result[:original_image])

end

Parameters:

  • options (Hash) (defaults to: {})

    to open the UIImagePickerController with

  • view (UIViewController)

    controller from which to present the image picker; if nil, uses the keyWindow's rootViewController.



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# File 'motion/core/device/ios/camera.rb', line 99

def picture(options = {}, presenting_controller = nil, &block)
  @callback = block
  @callback.weak! if @callback && BubbleWrap.use_weak_callbacks?

  @options = {
    allows_editing: false,
    animated: true,
    on_dismiss: false,
    media_types: [:image],
    dismiss_completed: nil,
    video_quality: :medium,
    video_maximum_duration: 600
  }.merge(options)

  # If we're using Camera.any, by default use photo library
  if !@options.has_key?(:source_type) and self.location == :none
    @options[:source_type] = :photo_library
  # If we're using a real Camera, by default use the camera.
  elsif !@options.has_key?(:source_type)
    @options[:source_type] = :camera
  end

  source_type_readable = options[:source_type]
  source_type = Constants.get("UIImagePickerControllerSourceType", @options[:source_type])
  if not Camera.source_type_available?(source_type)
    error(Error::SOURCE_TYPE_NOT_AVAILABLE) and return
  end

  media_types = @options[:media_types].collect { |mt| symbol_to_media_type(mt) }
  if media_types.member? nil
    error(Error::INVALID_MEDIA_TYPE) and return
  end

  media_types.each { |media_type|
    if not Camera.media_type_available?(media_type, for_source_type: source_type)
      error(Error::MEDIA_TYPE_NOT_AVAILABLE) and return
    end
  }

  self.picker.delegate = self
  self.picker.sourceType = source_type
  self.picker.mediaTypes = media_types
  self.picker.allowsEditing = @options[:allows_editing]
  self.picker.videoQuality = Constants.get("UIImagePickerControllerQualityType", @options[:video_quality])
  self.picker.videoMaximumDuration = @options[:video_maximum_duration]

  if source_type_readable == :camera && ![:front, :rear].member?(self.location)
    raise Error::INVALID_CAMERA_LOCATION, "Can't use camera location #{self.location} with source type :camera"
  end

  if source_type_readable == :camera
    self.picker.cameraDevice = camera_device
  end

  presenting_controller ||= App.window.rootViewController.presentedViewController # May be nil, but handles use case of container views
  presenting_controller ||= App.window.rootViewController

  # use popover for iPad (ignore on iPhone)
  if Device.ipad? and source_type==UIImagePickerControllerSourceTypePhotoLibrary and @popover_in_view
    @popover = UIPopoverController.alloc.initWithContentViewController(picker)
    @popover.presentPopoverFromRect(@popover_in_view.bounds, inView:@popover_in_view, permittedArrowDirections:UIPopoverArrowDirectionAny, animated:@options[:animated])
  else
    presenting_controller.presentViewController(self.picker, animated:@options[:animated], completion: lambda {})
  end
end

#popover_from(view) ⇒ Object



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# File 'motion/core/device/ios/camera.rb', line 56

def popover_from(view)
  @popover_in_view = view
  self
end

#popoverControllerDidDismissPopover(popoverController) ⇒ Object

iPad popover is dismissed



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# File 'motion/core/device/ios/camera.rb', line 166

def popoverControllerDidDismissPopover(popoverController)
  @popover = nil
end