93 lines
2.7 KiB
Ruby
93 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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module ActionText
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class TrixAttachment
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TAG_NAME = "figure"
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SELECTOR = "[data-trix-attachment]"
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COMPOSED_ATTRIBUTES = %w( caption presentation )
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ATTRIBUTES = %w( sgid contentType url href filename filesize width height previewable content ) + COMPOSED_ATTRIBUTES
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ATTRIBUTE_TYPES = {
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"previewable" => ->(value) { value.to_s == "true" },
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"filesize" => ->(value) { Integer(value.to_s, exception: false) || value },
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"width" => ->(value) { Integer(value.to_s, exception: false) },
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"height" => ->(value) { Integer(value.to_s, exception: false) },
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:default => ->(value) { value.to_s }
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}
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class << self
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def from_attributes(attributes)
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attributes = process_attributes(attributes)
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trix_attachment_attributes = attributes.except(*COMPOSED_ATTRIBUTES)
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trix_attributes = attributes.slice(*COMPOSED_ATTRIBUTES)
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node = ActionText::HtmlConversion.create_element(TAG_NAME)
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node["data-trix-attachment"] = JSON.generate(trix_attachment_attributes)
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node["data-trix-attributes"] = JSON.generate(trix_attributes) if trix_attributes.any?
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new(node)
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end
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private
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def process_attributes(attributes)
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typecast_attribute_values(transform_attribute_keys(attributes))
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end
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def transform_attribute_keys(attributes)
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attributes.transform_keys { |key| key.to_s.underscore.camelize(:lower) }
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end
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def typecast_attribute_values(attributes)
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attributes.to_h do |key, value|
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typecast = ATTRIBUTE_TYPES[key] || ATTRIBUTE_TYPES[:default]
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[key, typecast.call(value)]
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end
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end
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end
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attr_reader :node
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def initialize(node)
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@node = node
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end
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def attributes
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@attributes ||= attachment_attributes.merge(composed_attributes).slice(*ATTRIBUTES)
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end
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def to_html
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ActionText::HtmlConversion.node_to_html(node)
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end
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def to_s
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to_html
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end
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private
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def attachment_attributes
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read_json_object_attribute("data-trix-attachment")
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end
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def composed_attributes
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read_json_object_attribute("data-trix-attributes")
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end
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def read_json_object_attribute(name)
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read_json_attribute(name) || {}
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end
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def read_json_attribute(name)
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if value = node[name]
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begin
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JSON.parse(value)
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rescue => e
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Rails.logger.error "[#{self.class.name}] Couldn't parse JSON #{value} from NODE #{node.inspect}"
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Rails.logger.error "[#{self.class.name}] Failed with #{e.class}: #{e.backtrace}"
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nil
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end
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end
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end
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end
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end
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