Merge pull request #2831 from sul-dlss/mirador-component

Extract a component for embedded mirador

app/components/custom_viewer_component.html.erb

@@ -1,5 +1,5 @@
 <% if document.external_iiif? %>
-  <%= render partial: "embedded_mirador3", locals: {document: document} %>
+  <%= render EmbeddedMiradorComponent.new(document:) %>
 <% elsif document.uploaded_resource? %>
   <%= render Blacklight::Gallery::OpenseadragonEmbedComponent.new(document: document, presenter: presenter, view_config: view_config) %>
 <% else %>

app/components/embedded_mirador_component.html.erb

@@ -0,0 +1,11 @@
+<%= content_tag :iframe, '',
+      src: iframe_src,
+      allowfullscreen: true,
+      class: 'mirador-embed-wrapper',
+      frameborder: 0,
+      marginwidth: 0,
+      marginheight: 0,
+      scrolling: 'no',
+      width: '100%'
+      %>
+<%= iiif_drag_n_drop(manifest_url, document:) %>

app/components/embedded_mirador_component.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+# Display the embed iframe
+class EmbeddedMiradorComponent < ViewComponent::Base
+  def initialize(document:)
+    @document = document
+    super
+  end
+
+  attr_reader :document
+
+  delegate :iiif_drag_n_drop, to: :helpers
+
+  def render?
+    document.manifest_url.present?
+  end
+
+  def manifest_url
+    @manifest_url ||= doc_manifest.starts_with?('/') ? root_url + doc_manifest.slice(1..-1) : doc_manifest
+  end
+
+  def iframe_src
+    "#{Settings.iiif_embed.url}?#{{ url: manifest_url }.to_query}"
+  end
+
+  def doc_manifest
+    document.manifest_url
+  end
+end

spec/components/custom_viewer_component_spec.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe CustomViewerComponent, type: :component do
+  let(:component) { described_class.new(document:, presenter:) }
+  let(:presenter) { double }
+  let(:exhibit) { create(:exhibit) }
+  let(:manifest_url) { 'http://example.com/iiif/manifest' }
+
+  before do
+    exhibit.required_viewer.viewer_type = 'mirador3'
+    exhibit.required_viewer.save
+    with_request_url "/#{exhibit.slug}/catalog/cf101bh9631" do
+      render_inline(component)
+    end
+  end
+
+  context 'with external_iiif resource' do
+    let(:document) do
+      SolrDocument.new(id: 'abc', iiif_manifest_url_ssi: manifest_url,
+                       spotlight_resource_type_ssim: ['spotlight/resources/iiif_harvesters'])
+    end
+
+    it 'renders the component' do
+      expect(page).to have_css "iframe[src='https://embed.stanford.edu/iiif?#{{ url: manifest_url }.to_query}']"
+    end
+  end
+end

spec/views/catalog/_embedded_mirador3.html.erb_spec.rb → spec/components/embedded_mirador_component_spec.rb

@@ -2,22 +2,17 @@
 
 require 'rails_helper'
 
-describe 'catalog/_embedded_mirador3' do
+RSpec.describe EmbeddedMiradorComponent, type: :component do
+  let(:component) { described_class.new(document:) }
   let(:document) { SolrDocument.new(id: 'abc', iiif_manifest_url_ssi: manifest_url) }
   let(:manifest_url) { 'http://example.com/iiif/manifest' }
 
   before do
-    without_partial_double_verification do
-      allow(view).to receive_messages(
-        document: document
-      )
-    end
+    render_inline(component)
   end
 
   it 'renders an iframe' do
-    render
-
-    expect(rendered).to have_css "iframe[src='https://embed.stanford.edu/iiif?#{{ url: manifest_url }.to_query}']"
+    expect(page).to have_css "iframe[src='https://embed.stanford.edu/iiif?#{{ url: manifest_url }.to_query}']"
   end
 
   context 'with a local IIIF manifest' do
@@ -26,9 +21,7 @@
     it 'uses the full url to the manifest' do
       expected_url = 'http://test.host/iiif/manifest'
 
-      render
-
-      expect(rendered).to have_css "iframe[src='https://embed.stanford.edu/iiif?#{{ url: expected_url }.to_query}']"
+      expect(page).to have_css "iframe[src='https://embed.stanford.edu/iiif?#{{ url: expected_url }.to_query}']"
     end
   end
 end