Add a skeleton viewer for the new designs

app/assets/stylesheets/was_seed.css

@@ -0,0 +1 @@
+/* TODO add styles */

app/components/was_seed_component.html.erb

@@ -0,0 +1,7 @@
+<%= render ::CompanionWindowsComponent.new(viewer:, stimulus_controller: 'file-auth fullscreen') do |component| %>
+  <% component.with_body do %>
+    <div class="sul-embed-body" style="width: 100%">
+       <%= render ::ContentNotAvailableComponent.new %>
+    </div>
+  <% end %>
+<% end %>

app/components/was_seed_component.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Embed
+  class WasSeedComponent < ViewComponent::Base
+    def initialize(viewer:)
+      @viewer = viewer
+    end
+
+    attr_reader :viewer
+
+    delegate :purl_object, to: :viewer
+    delegate :druid, to: :purl_object
+  end
+end

app/javascript/webarchive.js

@@ -0,0 +1 @@
+// TODO: Add code here

app/viewers/embed/viewer/common_viewer.rb

@@ -9,6 +9,8 @@ class CommonViewer
 
       attr_reader :purl_object, :embed_request
 
+      delegate :new_viewer?, to: :embed_request
+
       def initialize(embed_request)
         @embed_request = embed_request
         @purl_object = embed_request.purl_object

app/viewers/embed/viewer/was_seed.rb

@@ -6,15 +6,15 @@ class WasSeed < CommonViewer
       delegate :druid, to: :@purl_object
 
       def component
-        Legacy::WasSeedComponent
+        new_viewer? ? WasSeedComponent : Legacy::WasSeedComponent
       end
 
       def importmap
-        'legacy_webarchive'
+        new_viewer? ? 'webarchive' : 'legacy_webarchive'
       end
 
       def stylesheet
-        'legacy_was_seed.css'
+        new_viewer? ? 'was_seed.css' : 'legacy_was_seed.css'
       end
 
       def capture_list

config/importmap.rb

@@ -2,6 +2,7 @@
 
 pin "media", preload: true
 pin "legacy_webarchive", preload: true
+pin "webarchive", preload: true
 pin "legacy_file", preload: true
 pin "document", preload: true
 pin "legacy_3d", preload: true

lib/embed/request.rb

@@ -50,6 +50,11 @@ def hide_search?
       params[:hide_search] == 'true'
     end
 
+    # This is a temporary method that allows us to test new viewers before making them the default
+    def new_viewer?
+      params[:new_viewer] == 'true'
+    end
+
     def min_files_to_search
       params[:min_files_to_search]
     end

spec/components/was_seed_component_spec.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Embed::PdfComponent, type: :component do
+  include PurlFixtures
+
+  let(:url) { 'https://purl.stanford.edu/sq929fn8035' }
+  let(:embed_request) { Embed::Request.new(url:) }
+  let(:viewer) { Embed::ViewerFactory.new(embed_request).viewer }
+
+  before do
+    stub_request(:get, 'https://purl.stanford.edu/sq929fn8035.json')
+      .to_return(status: 200, body: pdf_public_json, headers: {})
+  end
+
+  it 'renders the full screen button by default' do
+    rendered_ng_doc_fragment = render_inline(described_class.new(viewer:))
+    expect(rendered_ng_doc_fragment.xpath('.//button[@id="full-screen-button" and @aria-label="Full screen"]').count).to eq(1)
+  end
+
+  context 'when the browser is chromium based' do
+    let(:companion_windows_component) { CompanionWindowsComponent.new(viewer:, stimulus_controller: 'file-auth') }
+
+    before do
+      allow(CompanionWindowsComponent).to receive(:new).with(viewer:, stimulus_controller: 'file-auth fullscreen').and_return(companion_windows_component)
+      allow(companion_windows_component).to receive(:requested_by_chromium?).and_return(true)
+    end
+
+    it 'does not render the full screen button' do
+      rendered_ng_doc_fragment = render_inline(described_class.new(viewer:))
+      expect(rendered_ng_doc_fragment.xpath('.//button[@id="full-screen-button"]').count).to eq(0)
+      expect(rendered_ng_doc_fragment.xpath('.//button[@aria-label="Full screen"]').count).to eq(0)
+    end
+  end
+end