App Shell Component

A web component for building SPAs consisting of one topic with multiple activities. Handles login, language selection, activity switching, menus etc.

You can install this component via npm:

npm i @dbp-toolkit/app-shell

Usage

<script type="module" src="node_modules/@dbp-toolkit/app-shell/dist/dbp-app-shell.js"></script>
<dbp-app-shell src="/example.topic.metadata.json"></dbp-app-shell>

Or directly via CDN:

<script type="module" src="https://unpkg.com/@dbp-toolkit/[email protected]/dist/dbp-app-shell.js"></script>
<dbp-app-shell src="/example.topic.metadata.json"></dbp-app-shell>

You need Keycloak and other parts to be in place to really make full use of the AppShell. Best take a look on examples like index.html for more explanation.

Attributes

• provider-root (optional): You need to set the provider-root attribute for the app-shell to "terminate" all provider events
  • If you don't want to set the app-shell as provider-root then you need to set the attributes auth, requested-login-status and analytics-event as attribute for the app-shell or in a dbp-provider above it
  • example <dbp-app-shell provider-root></dbp-app-shell>
• lang (optional, default: de): set to de or en for German or English
  • example <dbp-app-shell lang="de"></dbp-app-shell>
• src: The path to a topic metadata file (json)
• base-path (optional, default: /): An absolute base path for routing
• entry-point-url: Entry point URL to access the API
• keycloak-config: An object with the following keys: url, realm, clientId, silentCheckSsoRedirectUri, scope
• matomo-url (optional): set to your Matomo server (required only for tracking)
  • example <dbp-app-shell matomo-url="https://my-matomo.tld"></dbp-app-shell>
• matomo-site-id (optional): set to your site id (required only for tracking)
  • example <dbp-app-shell matomo-site-id="456789"></dbp-app-shell>
• no-welcome-page (optional): skips the welcome page and welcome page isn't visible in menu
  • example <dbp-app-shell no-welcome-page></dbp-app-shell>

Emitted attributes

The component emits dbp-set-property events for these attributes:

• lang to propagate a language change (possible values en, de)
• requested-login-status (possible values logged-in, logged-out)

Emitted events

dbp-lang

The component emits a dbp-lang event when the language is changed (for example in the language picker). The details attribute of the event is the language (possible values en, de).

Slots

You use template tags to inject slots into the web component. These templates will be converted to div containers when the page is loaded and will not show up before that.

Unnamed slot

The unnamed slot will be removed when the application is loaded and can be filled with a loading-spinner.

Example: <app-shell><dbp-loading-spinner></dbp-loading-spinner></app-shell>

name

The content of this slot will be shown left in the header and can be used to set a name (e.g. the name of the institution).

Example: <app-shell><template slot="name">TU Graz<br />Graz University of Technology</template></app-shell>

title

The content of this slot will be shown as big h1 headline instead of the name in the topic manifest file.

Example: <app-shell><template slot="title">TU Graz Greenlight</template></app-shell>

logo

The content of this slot will be shown right in the header and can be used to override the logo image.

Example: <app-shell><template slot="logo"><img alt="logo" src="/path/to/logo.png" /></template></app-shell>

header

The content of this slot will override the whole content of the header. You will need to provide your own language selector and auth component.

Example: <app-shell><template slot="header">My custom header</template></app-shell>

footer-links

The content of this slot will override the whole content of the footer link section, for example to set custom links.

Example: <app-shell><template slot="footer-links"><a target="_blank" rel="noopener" class="int-link-external" href="https://my-webpage.com">Link text</a></template></app-shell>

footer

The content of this slot will override the whole content of the footer, for example to set custom links and also overwrite the dbp-build-info tag.

Example: <app-shell><template slot="footer"><a target="_blank" rel="noopener" class="int-link-external" href="https://my-webpage.com">Link text</a></template></app-shell>

Topic Metadata

{
  "name": {
    "de": "Beispiel",
    "en": "Example"
  },
  "short_name": {
    "de": "Beispiel",
    "en": "Example"
  },
  "description": {
    "de": "Ich bin eine Beschreibung der Applikation",
    "en": "I am a description of this application"
  },
  "routing_name": "example",
  "activities": [
    {"path": "example.metadata.json", "visible": true}
  ],
  "attributes": []
}

Activity Metadata

{
  "element": "dbp-activity-example",
  "module_src": "dbp-activity-example.js",
  "routing_name": "activity-example",
  "name": {
    "de": "Beispielaktivität",
    "en": "Example Activity"
  },
  "short_name": {
    "de": "Beispielaktivität",
    "en": "Example Activity"
  },
  "description": {
    "de": "Eine Beschreibung",
    "en": "A Description"
  }
}

Local development

# get the source
git clone [email protected]:digital-blueprint/toolkit.git
cd toolkit/packages/app-shell

# install dependencies
yarn install

# constantly build dist/bundle.js and run a local web-server on port 8002 
yarn run watch

# run tests
yarn test

# build local packages in dist directory
yarn run build

Jump to http://localhost:8002 and you should get a Single Sign On login page.