TIDO

Text vIewer for Digital Objects. With this project we provide a highly configurable viewer for projects that implement the TextAPI.

Overview

• Demo
• Getting Started
  • Get the Viewer
    • Registry Setup
    • Installation
  • Integration
• Configuration
  • The Keys in Detail
  • View Connectors
    • Options
      • Tree
      • Metadata
      • Image
      • Text
      • Annotations
• Bookmarking
• Getting Started (Developers)
  • Prerequisites
  • Install
    • Set up nvm and the recent stable version of node.js
    • Clone the Repository
    • Get the Dependencies
  • Build
  • Local Development
    • Serve Development Build
    • Preview Production Build
    • Preview Production Build with examples
    • Start Mock API
  • Testing
    • Quick Test Run
    • Testing In Detail
  • Linting
  • Generate TextAPI support table
• TextAPI Support
• Viewer Architecture
• Dockerfile
• Architecture
• Contributing
• Versioning
• Authors

Demo

You can preview TIDO at GitLab Pages with different configurations to compare with. Generally the deployment to Pages runs at every branch.

You can access the preview with the following URL syntax:

[GitLab Pages base URL]/[branch-name]/config-tester/[project].html

List of preview configurations:

• Ahiqar Textual Witnesses In Syriac
• Ahiqar Textual Witnesses In Arabic And Karshuni
• Goethes Farbenlehre in Berlin
• Zero Config (here you can append an entrypoint URL parameter like ?collection=https://example.com. For more details, please check the Bookmarking section.)

Getting Started

TIDO is provided as npm package. Please follow the steps below to include it for production:

Get the Viewer

Registry Setup

Since npm communicates with the package API, it is necessary to setup a valid endpoint.

echo @subugoe:registry=https://gitlab.gwdg.de/api/v4/packages/npm/ >>.npmrc

Note: Fire this command inside the root of your project directory.

Installation

npm i @subugoe/tido

Integration

1. Add these two files to your application: tido.js and tido.css.

HTML:

<link href="/node_modules/@subugoe/tido/dist/tido.css" rel="stylesheet">
<script src="/node_modules/@subugoe/tido/dist/tido.js"></script>

JS:

import '@subugoe/tido/dist/tido.js'
import '@subugoe/tido/dist/tido.css'

2. Add a container element to your application where TIDO can hook into. Please make sure that this element has your desired dimensions and position.

<style>
  #app {
    height: 100vh;
    width: 100%;
  }
</style>

<div id="app"></div>

3. Create a new TIDO instance and provide optionally your TIDO configuration:

<script>
  const tido = new Tido({
    manifest: 'https://example.com/textapi/manifest.json'
  });
</script>

Below you can find a detailed explanation of the configuration object.

Configuration

TIDO requires an entrypoint URL to be useful at all. You can provide either a collection or a manifest key and additionally provide an item key to start a certain item with a sequence. Technically you could also provide a single item key only, but it is recommended to use manifests as wrappers.

By default, TIDO will render five panels displaying sequence tree, metadata, image, text content and annotation views. Nevertheless, you can fully customize the viewer's behaviour.

There are options to

• add/remove multiple panels
• freely combine view components in panels
• show/hide header features
• change the color scheme
• and more ...

Real world example:

<script id="tido-config" type="application/json">
  {
    "collection": "http://localhost:8181/ahiqar/arabic-karshuni/collection.json",
    "panels": [
      {
        "label": "contents_and_metadata",
        "views": [
          {
            "id": "tree",
            "label": "contents",
            "connector": {
              "id": 1,
              "options": {
                "labels": {
                  "item": "Sheet",
                  "manifest": "Manuscript"
                }
              }
            }
          },
          {
            "id": "metadata",
            "label": "metadata",
            "connector": {
              "id": 2,
              "options": {
                "collection": {
                  "all": true
                },
                "manifest": {
                  "all": true
                },
                "item": {
                  "all": true
                }
              }
            }
          }
        ]
      },
      {
        "label": "image",
        "views": [
          {
          "id": "image",
          "label": "Image",
          "connector": {
            "id": 3
          }
        }]
      },
      {
        "label": "text",
        "views": [
          {
            "id": "text1",
            "label": "Transcription",
            "default": true,
            "connector": {
              "id": 4,
              "options": {
                "type": "transcription"
              }
            }
          },
          {
            "id": "text2",
            "label": "Transliteration",
            "connector": {
              "id": 4,
              "options": {
                "type": "transliteration"
              }
            }
          }
        ]
      },
      {
        "label": "annotations",
        "views": [
          {
            "id": "annotations1",
            "label": "Editorial",
            "default": true,
            "connector": {
              "id": 5,
              "options": {
                "types": [
                  {
                    "name": "Person",
                    "index": "biPersonFill",
                  },
                  {
                    "name": "Place",
                    "index": "biGeoAltFill",
                  },
                  {
                    "name": "Editorial Comment",
                    "index": "biChatFill",
                  },
                  {
                    "name": "Reference",
                    "index": "biBoxArrowUpRight",
                  }
                ]
              }
            }
          },
          {
            "id": "annotations2",
            "label": "Motif",
            "connector": {
              "id": 5,
              "options": {
                "types": [
                  {
                    "name": "Motif",
                    "index": "biPenFill",
                  }
                ]
              }
            }
          }
        ]
      }
    ],
    "translations": {
      "en": {
        "contents_and_metadata": "Contents & Metadata"
      }
    }
  }
</script>

The Keys in Detail

Name	Type	Default	Description
collection	String	null	Specifies a collection endpoint URL. Will be prioritized over manifest key.
colors	Object	↓	Sets custom theme colors. If any value is left blank (e.g. "primary": "",), a default color scheme will be used.
colors.forceMode	String	light	Enforces the initial color mod despite the browser settings. Supported values: light, dark, none.
colors.primary	String	#477fbf	Used as main color in buttons, active states, highlights
colors.secondary	String	#eeeeee	Can be used as contrast or background color
colors.accent	Srring	empty
container	String	#app	Specifies the CSS selector where we should append the TIDO app to.
header	Object	↓	Controls the elements in the section above the content
header.show	Boolean	true	Toggle visibility of the whole header
header.navigation	Boolean	true	Toggle visibility of prev/next buttons
header.panelsToggle	Boolean	true	Toggle visibility of panel toggle buttons
header.languageSwitch	Boolean	false	Toggle visibility of language switch for supported languages
item	String	null	Specifies an item endpoint URL.
lang	String	en	Sets the default language. Possible supported values: en , de
manifest	String	null	Specifies a manifest endpoint URL. Will be ignored when there is a collection key specified.
notificationColors	Object	↓	Sets custom notification colors. Used in error messages.
notificationColors.info	String	blue-9	Sets the info level color.
notificationColors.warning	String	red-9	Sets the warning level color.
panels	PanelConfig[]	↓	Defines an array of panel objects. The panels will appear in the same order.
panels[i].label	String	Panel i	Sets the label which appears in the panel header. If there is only one view in the panel then the view label will be displayed instead. Translatable.
panels[i].views	ViewConfig[]	↓	Defines an array of views inside of a panel. If there are multiple views, we display them in tabs. If there is only one view we omit the tabs and display the view directly inside the panel.
panels[i].views[j].id	String	view-j	Unique identifier for the view across the app.
panels[i].views[j].label	String	View j	Sets the label which appears in the tab header. If there is only one view then this label will be displayed as panel header label. Translatable.
panels[i].views[j].default	Boolean	false	Specifies whether this view should be visible at the initial start of the app. If no default keys provided on views or all default keys are set to false, then the first view will be considered as default.
panels[i].views[j].connector	Object	↓	Defines which view component and its options. Each view can have its own arbitrary config options.
panels[i].views[j].connector.id	Number	null	Defines the component id which will be rendered dynamically for this view. See view connectors.
panels[i].views[j].connector.options	Object	null	Defines options for individual view components. Each view component has different options. See view connector options.
translations	Object	null	Specifies a custom translations object.
translations.[langKey]	Object	null	Defines a translation object for supported languages with the respective langKey which can have following values: en, de.
translations.[langKey].[translationKey]	String	null	Defines a translation key/value pair for a supported language. You can override existing key/value pairs or define custom key/value pairs.

View Connectors

TIDO can be configured to display dynamic panel with dynamic views inside. In order to tell TIDO how the panels and views should be rendered, you need to assign the right connectors in the config. This is done via component IDs which currently are plain integers. Below you can find a list of available components.

ID	Name	Description
1	Tree	Displays an expandable/collapsible tree view that renders TextAPi sequences.
2	Metadata	Displays dynamic metadata from collection, manifest and item levels.
3	Image	Displays the image resource from the item in an OpenSeadragon instance.
4	Text	Displays one text type from the item. Loads a support CSS file it provided. Handles text highlighting and selecting
5	Annotations	Displays a list of annotations. Handles selecting.

Options

Each view component can be configured via an options object that can be passed at the connector. Here is an overview of available options:

Tree

Name	Type	Default	Description
labels	Object	null	You can overwrite default labels of tree nodes.
labels["item"]	String	"page"	Label prefix for an item tree node. The item number in the sequence will be appended. It will be displayed when no other label is given by the item itself. The output could look like this: "Page 3"
labels["manifest"]	String	"manifest"	Label prefix for an manifest tree node. The manifest number in the sequence will be appended. It will be displayed when no other label is given by the item itself. The output could look like this: "Manifest 3"

Metadata

Name	Type	Default	Description
collection	Boolean	true	Toggle on/off the collection section.
manifest	Boolean	true	Toggle on/off the manifest section.
item	Boolean	true	Toggle on/off the item section.

Image

no options

Text

Name	Type	Default	Description
type	String	null	Specify the content type slug that is served from item.content response.

Annotations

Name	Type	Default	Description
types	AnnotationTypeConfig[]	[]	Defines annotation types that should be displayed in this view. The Annotation API response will then be filtered according to this config.
types[i].name	String	null	Specifies the name which corresponds to the x-content-type property from annotations response.
types[i].index	String	null	Specifies the index name that should be used in the annotation item. TIDO uses Bootstrap Icons, please lookup the allowed values here
types[i].displayWhen	String	null	Text content type that was specified under Text options. Annotation will only be shown if that content type is currently active.
types[i].annotationType	String	annotation	Controls the look of the annotation item. Allowed values: annotation or text. Currently the only difference is that there is no index at type text.

Bookmarking

TIDO will reflect certain state changes to the URL so you can save and share your current view.

It appends only one GET parameter. The key is tido and the value are the settings of the current app state. Full example of the bookmarking concept: http://localhost:5173/?tido=m0_i1_s0-2-3_p0.0-1.0-2.0-3.1.

The 'value' consists of 4 parts:

1. Manifest part: m0
2. Item part: i1
3. Visible panels: s0-2-3
4. Active tab for each panel: p0.0-1.0-2.0-3.1

Currently we provide the following bookmarking keys:

Key	Value	Description
collection	URL	Specifies a collection entrypoint. Will be preferred before manifest.
manifest	URL	Specifies a manifest entrypoint.
item	URL	Specifies an item entrypoint. If not set the first possible item will be appended and displayed.
m	Int: i.e 0	Specifies the manifest index inside a certain collection. Syntax: m[manifest index], example: m0
i	Int: i.e 1	Specifies the item index of a certain manifest. Syntax: i[item index], example: i1
s	0-1-2	Controls the visibility of panels. It's a list of dash-separated panel indexes. All other panels will be hidden. Not set = all visible. Syntax: s[index1]-[index2]..., example: s0-1-2
p	0.1-1.1-2.1-3.1	Specifies the active view (tab) in a respective panel. Syntax: p[panel index1].[view_index1]-[panel index2].[view_index2].. , example p0.1-1.1-2.1-3.1. Each user interaction will change this parameter.

Hint: With this setup you are able to load your entrypoint dynamically by appending it at the URL instead of rendering it via the configuration object inside your wrapper application.

Getting Started (Developers)

Prerequisites

To get TIDO up and running you should have the following software installed:

• npm
• nvm

Note:

We recommend to make use of nvm, since there might be issues with npm regarding permissions. The main purpose of nvm is to have multiple node versions installed in regards to different projects which might demand some sort of backwards compatibility. It enables you to just switch to the appropriate node version. Besides it also keeps track of resolving permission issues, since all your global installations go to your home directory (~/.nvm/) instead of being applied systemwide.

Install

Set up nvm and the recent stable version of node.js

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
nvm install stable

Note: After the nvm installation is done, please restart your shell session once. That's due to changes to your profile environment.

Clone the Repository

git clone git@gitlab.gwdg.de:subugoe/emo/tido.git

Get the Dependencies

Head over to your project directory, where you just cloned the repository to as described above and get all the dependencies needed by typing:

cd /path/to/projectdir
npm install

That's it. You should now be able to run the Viewer.

Build

Please run this command to create a production build.

npm run build

The output files are located at /dist.

Local Development

Serve Development Build

Builds the app in development mode (hot reloading, error reporting, etc.).

npm run dev

You can modify /index.html to load your required TIDO configuration. It will be available under localhost:5173.

Preview Production Build

You can start up a production build with You can modify /index.html to load your required TIDO configuration. It will be available under localhost:4173.

Preview Production Build with examples

You can also inspect some example TIDO configurations that we provide under /examples. Run this command which will create a TIDO production build, copy the result files into /examples and start up a local web server:

npm run preview:examples

This examples are available under localhost:2222. Each example has its own HTML file:

• http://localhost:2222/[example-name].html

Start Mock API

We provide several mock JSON files in order to create API endpoints for testing purposes. You can start your own local API server with this command:

npm run start:mock-api

The server will be available at localhost:8181. Check out /tests/mocks inspect the files.

Testing

We run tests only on production code. So you need to make sure to create a TIDO build before starting to run tests. TIDO follows the "Zero Config" policy but projects can provide a very detailed config that can drastically change the behaviour of the app. Therefore, we provide some example configurations from previous implementation projects that cover the most important features.

Following examples are available under (/examples):

• ahiqar-arabic-karshuni.html
• ahiqar-arabic-karshuni-local.html
• ahiqar-syriac.html
• gfl.html
• gfl-local.html
• zero-config.html

Quick Test Run

This is a minimal command to run tests once on your local machine.

• npm run start:mock-api & npm run test

Testing In Detail

If you want to gain more control during development you can do the following. Prepare the environment before running the tests:

• npm run start:mock-api
• npm run preview:examples

Now you can run the tests on your local machine with a proper Cypress UI and selective steps or run the tests only in headless mode which will prompt the results on the console.

• npm run cypress or npm run cypress:headless

Linting

npm run lint            # to lint all the files at once
npm run lint:js         # to lint js files only
npm run lint:markdown   # to lint the markdown
npm run lint:scss       # to lint the styles
npm run lint:vue        # to lint vue files only

Generate TextAPI support table

We maintain a JSON file (/.validation/support-matrix.json) that keeps track of supported TextAPI features. If you need to recreate that file and rerender /SUPPORT.md, here is an explanation:

• Make sure you run NodeJS version >= 20
• Set GITLAB_ACCESS_TOKEN in /.env file
• Run node ./.validation/create-support-matrix.js
• Inspect /.validation/support-matrix.json, all status values are set to 0 (= not supported) by default
• Edit the statuses manually: 0 = not supported, 1 = supported, 2 = partially supported, 3 = unused
• Run node ./.validation/create-support-matrix.js again to generate new /SUPPORT.md

TextAPI Support

Please view this document to see an overview of supported TextAPI features: State of TextAPI support

Viewer Architecture

Dockerfile

The Dockerfile is used for GitLab CI.

docker build --pull -t docker.gitlab.gwdg.de/subugoe/emo/tido/node .
docker push docker.gitlab.gwdg.de/subugoe/emo/tido/node

Architecture

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

Authors

See the list of contributors who participated in this project. First line added!