Class: Flms::LayerViewObject

Inherits:
Object
  • Object
show all
Defined in:
app/view_objects/flms/layer_view_object.rb

Overview

Create DOM for this layer, including all the necessary ‘data-*’ attributes to animate it as desired via skrollr.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(layer) ⇒ LayerViewObject

Returns a new instance of LayerViewObject.



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# File 'app/view_objects/flms/layer_view_object.rb', line 7

def initialize(layer)
  @layer = layer
end

Class Method Details



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# File 'app/view_objects/flms/layer_view_object.rb', line 15

def self.link_path_for(block, layer)
  link_path = Flms::Engine.routes.url_helpers.edit_block_image_layer_path(block, layer) if layer.is_a? Flms::ImageLayer
  link_path = Flms::Engine.routes.url_helpers.edit_block_text_layer_path(block, layer) if layer.is_a? Flms::TextLayer
  link_path = Flms::Engine.routes.url_helpers.edit_block_paragraph_layer_path(block, layer) if layer.is_a? Flms::ParagraphLayer
  link_path = Flms::Engine.routes.url_helpers.edit_block_embed_layer_path(block, layer) if layer.is_a? Flms::EmbedLayer
  link_path = Flms::Engine.routes.url_helpers.edit_block_animation_layer_path(block, layer) if layer.is_a? Flms::AnimationLayer
  link_path
end

Instance Method Details

#keyframe_data_hash(scroll_offset = 0) ⇒ Object

Generate a hash of data to be provided to skrollr that describes the keyframe animation for this layer



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# File 'app/view_objects/flms/layer_view_object.rb', line 25

def keyframe_data_hash(scroll_offset = 0)
  data = { }
  data['data-anchor-target'] = '#skrollr-body'
  data[:style] = "z-index: #{ @layer.z_index };"

  initial_pos = calculate_scroll_position(:initial, scroll_offset)
  target_start_pos = calculate_scroll_position(:target_start, scroll_offset)
  target_end_pos = calculate_scroll_position(:target_end, scroll_offset)
  final_pos = calculate_scroll_position(:final, scroll_offset)

  start_view_object = Flms::KeyframeViewObject.new(@layer.start_state_keyframe)
  target_view_object = Flms::KeyframeViewObject.new(@layer.target_state_keyframe)
  end_view_object = Flms::KeyframeViewObject.new(@layer.end_state_keyframe)

  data['data-0'] = 'display:none;'
  data["data-#{initial_pos}"] = 'display:block; ' + start_view_object.styles(style_data_for_keyframes)
  data["data-#{target_start_pos}"] = target_view_object.styles(style_data_for_keyframes)
  data["data-#{target_end_pos}"] = target_view_object.styles(style_data_for_keyframes)
  data["data-#{final_pos}"] = end_view_object.styles(style_data_for_keyframes)
  data["data-#{final_pos + 1}"] = 'display:none; opacity: 0;' if @layer.dom_remove

  data
end

#view_partial_name ⇒ Object 



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# File 'app/view_objects/flms/layer_view_object.rb', line 11

def view_partial_name
  "flms/elements/#{ @layer.class.name.demodulize.underscore }"
end