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Newspapers and News Agencies

If you're thinking of implementing this project, consider signing up for a DocumentCloud account instead – we handle the document processing and indexing for search, and give you an easily embeddable version of this viewer.

www.documentcloud.org/contact

If you're not part of a news agency, read on for the technical details…

Browser Support

All core functionality is supported as far back as IE7. However, users with modern browsers (Firefox 3.5, Safari 4, Chrome) will notice a much improved view.

Usage

Take a peek at the viewer.html template to see how to load in a Document. All you really need to do is point to a Document Viewer JSON file and specify the target element to embed the viewer:

DV.load(JSON_FILE, { container: element_selector });

JSON_FILE: Either an inline json object, or the path to a remote json object - www.documentcloud.org/documents/19864-goldman-sachs-internal-emails.json

  • container: The element to contain the Document Viewer - '#DV-container'

Data Formats: Documents

All data should be formatted as JSON. When provided a cross domain url, DV will attempt a JSONP request. Examples of this in use can be found here: www.documentcloud.org/documents/19864-goldman-sachs-internal-emails.json

{
  title       : DOCUMENT_TITLE,
  description : DOCUMENT_DESCRIPTION,
  id          : DOCUMENT_ID,
  pages       : TOTAL_PAGES,

  annotations : 
  [
    {
      title     : ANNOTATION_TITLE,
      page      : PAGE_INDEX,
      content   : ANNOTATION_DESCRIPTION
      location  : { image: "x1, y1, x2, y2" },
    } 
  ],

  sections    : 
  [
    { title     : CHAPTER_TITLE, pages: "1-10" },
    { title     : CHAPTER_TITLE, pages: "11-20" }
  ],

  resources   : 
  {
    page          : { text: TEXT_URL_FORMAT, image: IMAGE_URL_FORMAT },
    related_story : LINK_URL,
    pdf           : ORIGINAL_PDF_URL,
    search        : SEARCH_UTILITY_URL
  }
}

Image Sizes and URLs

Images should be created to match the three sizes required by the viewer:

  • large : 1000px wide

  • normal : 700px wide

  • thumbnail : 180px wide

The document JSON data should have an image template string in the `resources.page.image` section. The template should include `{page}` and `{size}`.

http://s3.documentcloud.org/documents/19864/pages/goldman-sachs-internal-emails-p{page}-{size}.gif

Data Formats: Search

All data should be formatted as JSON. When provided a cross domain url, the Document Viewer will attempt a JSONP request.

{
  matches : NUMBER_OF_PAGES_WITH_MATCHES,
  results : [PAGE_NUMBER,PAGE_NUMBER,PAGE_NUMBER],
  query   : SEARCH_QUERY
}
  • matches : The number of pages with matches.

  • results : An array of page numbers with matches. NOT zero based.

  • query : Your search query.

Requirements

Jammit

We're using the excellent Jammit asset compression library from the DocumentCloud project to compress assets and render JS templates. Anytime you make a change to a template, you'll need to run jammit command to render out the views.

jammit

Details on installing and using the Jammit library can be found at documentcloud.github.com/jammit/

Styling the Viewer

The template provided comes in two forms:

viewer.html

This is the production facing view that uses the latest compressed assets and views. Compressed assets in this repository are only updated each time we do a point release.

viewer-debug.html

Should only be used for development and debugging purposes. You'll need to keep this up to date should add or remove new assets.

All view templates can be found in javascripts/DV/views To see your changes you'll need to be sure to run the jammit command to re-render your views.

Copyright

Copyright © 2010 The New York Times. See LICENSE for details.

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