Adds internet archive book viewer.

NOTE: Had to upgrade bookviewer.js to use newer versions of jQuery/jQuery-UI and a few plugins. Future work will probably have to be done.

.gitignore

@@ -52,6 +52,7 @@ braceros-tiffs
 # Ignore derived tiffs - in production they probably won't live here, but we still don't want
 # to accidentally push any up during dev/test
 /media
+public/media
 
 # Ignore deploy configuration files for God and Unicorn
 # These sit on our production server and are symlinked in.

Gemfile

@@ -11,6 +11,7 @@ gem 'coffee-rails', '~> 4.0.0'
 gem 'uglifier', '>= 1.3.0'
 
 gem 'jquery-rails', '~>3.0.4'
+gem 'jquery-ui-rails'
 gem 'cocoon', '~>1.2.0'
 
 # Nicer form development

Gemfile.lock

@@ -226,6 +226,8 @@ GEM
     jquery-rails (3.0.4)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
+    jquery-ui-rails (4.2.0)
+      railties (>= 3.2.16)
     json (1.8.1)
     json-ld (1.1.0)
       rdf (>= 1.0.8)
@@ -515,6 +517,7 @@ DEPENDENCIES
   jettywrapper
   jquery-fileupload-rails (~> 0.4.1)
   jquery-rails (~> 3.0.4)
+  jquery-ui-rails
   linkeddata
   metadata-ingest-form (~> 2.2)
   mini_magick

app/assets/javascripts/application.js

@@ -12,6 +12,9 @@
 //
 //= require jquery
 //= require jquery_ujs
+//= require jquery.ui.slider
+//= require jquery.ui.draggable
+//= require jquery.ui.effect.all
 //
 // Required by Blacklight
 //= require blacklight/blacklight
@@ -24,4 +27,11 @@
 //= require twitter/typeahead.min
 //
 // OpenSeaDragon for image viewers.
-//= require openseadragon
+//= require openseadragon
+//
+// BookReader
+//= require bookreader/dragscrollable
+//= require bookreader/jquery.colorbox
+//= require bookreader/jquery.ui.ipad
+//= require bookreader/jquery.bt.min
+//= require bookreader/BookReader

app/assets/javascripts/bookreader/oregondigital_bookreader.js.coffee

@@ -0,0 +1,49 @@
+jQuery ->
+  window.BookReaderManager = new BookReaderManager
+class BookReaderManager
+  constructor: ->
+    return unless $("#BookReader").length > 0
+    @element = $("#BookReader")
+    @br = this.initialize_bookreader()
+    $('#BRtoolbar').find('.read').hide();
+    $('#textSrch').hide();
+    $('#btnSrch').hide();
+  initialize_bookreader: ->
+    @br = new BookReader()
+    @br.imagesBaseURL = "/assets/bookreader/images/"
+    @br.getPageWidth = (index) -> 1000
+    @br.getPageHeight = (index) -> 1000
+    @br.getPageURI = this.getPageURI
+    @br.getPageSide = this.getPageSide
+    @br.getSpreadIndices = this.getSpreadIndices
+    @br.getPageNum = (index) -> index+1
+    @br.numLeafs = @element.data("pages")
+    @br.bookTitle = @element.data("title")
+    @br.bookUrl = ''
+    @br.getEmbedCode = -> return "Embedding is disabled."
+    @br.init()
+    return @br
+  getPageURI: (index, reduce, rotate) =>
+    "#{@element.data("root")}/page-#{index+1}.png"
+  getPageSide: (index) ->
+    if 0 == (index & 0x1)
+      return'R'
+    else
+      return'L'
+  getSpreadIndices: (pindex) =>
+    spreadIndices = [null, null];
+    if 'rl' == @br.pageProgression
+      if this.getPageSide(pindex) == 'R'
+        spreadIndices[1] = pindex
+        spreadIndices[0] = pindex + 1
+      else
+        spreadIndices[0] = pindex
+        spreadIndices[1] = pindex-1
+    else
+      if this.getPageSide(pindex) == 'L'
+        spreadIndices[0] = pindex
+        spreadIndices[1] = pindex + 1;
+      else
+        spreadIndices[1] = pindex
+        spreadIndices[0] = pindex-1
+    return spreadIndices

app/assets/stylesheets/application.css

@@ -9,6 +9,8 @@
  * compiled file, but it's generally better to create a new file per style scope.
  *
  *= require_self
+ *= require jquery.ui.slider
+ *= require bookreader/bookreader
  *= require_tree .
  */
 

app/assets/stylesheets/viewers/document_viewer.css.scss

@@ -0,0 +1,12 @@
+#document-viewer {
+  position: relative;
+  width: 800px;
+  height: 600px;
+  overflow: hidden;
+  #BRnav {
+    position: absolute;
+  }
+  #BRcontainer {
+    margin-top: 41px;
+  }
+}

app/decorators/document_decorator.rb

@@ -5,4 +5,32 @@ def view_partial
     "document_viewer"
   end
 
+  def view_div(&block)
+    h.content_tag(:div, :id => "BookReader", :data => data_hash) do
+      block.call if block_given?
+    end
+  end
+
+  private
+
+  def data_hash
+    {
+      :pages => pages,
+      :title => title,
+      :root => root
+    }
+  end
+
+  def pages
+    datastreams.keys.select{|x| x.start_with?("page")}.length
+  end
+
+  def title
+    object.descMetadata.title.first
+  end
+
+  def root
+    "/media/document_pages/#{pages_location.relative_path_from(base_pages_path)}"
+  end
+
 end

app/models/document.rb

@@ -1,13 +1,18 @@
 class Document < GenericAsset
   makes_derivatives do |obj|
     obj.transform_datastream :content, {:pages => {:output_path => obj.pages_location}}, :processor => :docsplit_processor
+    obj.save
   end
 
   def pages_location
     fd = OregonDigital::FileDistributor.new(pid)
-    fd.base_path = APP_CONFIG["document_pages_path"] || Rails.root.join("media", "document_pages")
+    fd.base_path = base_pages_path
     fd.extension = ""
     return Pathname.new(fd.path)
   end
 
+  def base_pages_path
+    Pathname.new(APP_CONFIG["document_pages_path"] || Rails.root.join("media", "document_pages"))
+  end
+
 end

app/models/image.rb

@@ -2,7 +2,11 @@ class Image < GenericAsset
   has_file_datastream :name => 'thumbnail', :control_group => "E"
   has_file_datastream :name => 'pyramidal', :control_group => "E"
 
-  makes_derivatives :create_thumbnail, :create_pyramidal
+  makes_derivatives do |obj|
+    obj.create_thumbnail
+    obj.create_pyramidal
+    obj.save
+  end
 
 
   # Derivative Creation Methods

app/views/catalog/_document_viewer.html.erb

@@ -1,5 +1,5 @@
 <div align="center">
   <div id="document-viewer">
-    TODO: Get document viewer back in
+    <%= decorated_object.view_div %>
   </div>
 </div>

lib/hydra/derivatives/docsplit_processor.rb

@@ -36,6 +36,7 @@ def split_images(format, sizes, output_path)
           page_path = Pathname.new(file)
           new_path = File.join(output_path, "page-#{page}#{page_path.extname}")
           File.rename(file, new_path.to_s)
+          output_datastream("page-#{page}").content = "external"
           output_datastream("page-#{page}").dsLocation = "file://#{new_path.to_s}"
         end
       ensure

spec/models/document_spec.rb

@@ -27,8 +27,8 @@
       it "should create a derivative per page" do
         (1..2).each do |page|
           expect(document.datastreams.keys).to include("page-#{page}")
-          expect(document.datastreams["page-#{page}"].content).to be_nil
           expect(document.datastreams["page-#{page}"].dsLocation).to eq "file://#{document.pages_location}/page-#{page}.png"
+          expect(Document.find(document.pid).datastreams.keys).to include("page-#{page}")
         end
       end
     end

spec/models/image_spec.rb

@@ -32,8 +32,8 @@
         FileUtils.rm(image.thumbnail_location) if File.exists?(image.thumbnail_location)
       end
       it 'should populate the external thumbnail datastream' do
-        expect(image.thumbnail.content).to be_nil
         expect(image.thumbnail.dsLocation).to eq("file://#{image.thumbnail_location}")
+        expect(Image.find(image.pid).thumbnail.dsLocation).to eq("file://#{image.thumbnail_location}")
       end
       it "should save the external thumbnail" do
         mime_type = FileMagic.new(FileMagic::MAGIC_MIME).file(image.thumbnail_location).split(';')[0]
@@ -46,7 +46,7 @@
       end
       it 'should populate the external pyramidal datastream' do
         expect(image.pyramidal.dsLocation).to eq("file://" + image.pyramidal_tiff_location)
-        expect(image.pyramidal.content).to be_nil
+        expect(Image.find(image.pid).pyramidal.dsLocation).to eq("file://#{image.pyramidal_tiff_location}")
       end
       it 'should save the external pyramidal datastream' do
         mime_type = FileMagic.new(FileMagic::MAGIC_MIME).file(image.pyramidal_tiff_location).split(';')[0]