Iframe single opt-in

JavaScript and CSS-styles to get an opt-in for iframe resources like YouTube, VIMEO and Google Maps.

Install

github

git clone https://github.com/sunixzs/iframe_single_opt_in.git

or as submodule:

git init submodule
git submodule add https://github.com/sunixzs/iframe_single_opt_in.git path/to/be

NPM

npm i iframe_single_optin

or

yarn add iframe_single_optin

Add to page

Include the stylesheet located in ./dist/css/iframe-single-opt-in.css or write your own. Of course you also may include the sources in ./src/scss.

There are at least two ways to include the script in a webpage:

1. Let the script find the elements / use data-toggle="iframe-single-opt-in"-attribute

Include script ./dist/js/iframe-single-opt-in-init.js in the bottom of the page and let the script find the elements by attribute data-toggle="iframe-single-opt-in".

The following attributes must further be set to the element:

• data-service
  Either 'googlemaps', 'youtube' or 'vimeo'.
• data-iframe-markup
  The export iframe markup of the service. Either plain markup or urlencoded. In all the services you find a share button. There is an option to embed into a webpage which produces an iframe tag. Just like you want to embed without opt-in.

The following attribut is not required and defaults to true:

• data-is-urlencoded
  This declares, if iframe-markup is urlencoded or not.

An example markup could look like this:

<div
    class="isoi isoi--dark isoi--ratio isoi--16by9"
    data-toggle="iframe-single-opt-in"
    data-service="youtube"
    data-iframe-markup="%3Ciframe[...]iframe%3E"
    data-is-urlencoded="true"
></div>

2. Make instances of IframeSingleOptIn()

Include script ./dist/js/iframe-single-opt-in.js in the head section of the page (or just before calling IframeSingleOptIn). The script is bind to window.IframeSingleOptIn.

Example:

<div class="isoi isoi--dark isoi--ratio isoi--16by9" id="isoi-example"></div>
<script>
    new IframeSingleOptIn(
        document.querySelector("#isoi-example"),
        'youtube',
        '<iframe [...]></iframe>'
        false
    );
</script>

Interface

/**
 * @param {HTMLElement} container       The container where the iframe should be placed in.
 * @param {ServiceType} service         Either 'googlemaps', 'youtube' or 'vimeo'.
 * @param {string}      iframeMarkup    The iframe markup - urlencoded or not.
 * @param {boolean}     isUrlEncoded    Is iframeMarkup urlencoded?
 * @param {}            params          Additional params - see below
 */
IframeSingleOptIn(container, service, iframeMarkup, (isUrlEncoded = false), (params = {}));

To urlencode the iframe markup you may use https://www.urlencoder.org/ which worked for me.

Params

Param	Type	Default	Description
titleText	string	'External video' or 'External map'	Type relational visible title.
infoText	string	'By loading this resource you agree the privacy policy of {SERVICE_NAME}.'	Type relational visible info text.
serviceUrlText	string	'more information'	Visible text for the data privacy link of the service.
showText	string	'show {SERVICE_NAME} video'	Type relational visible button text.
serviceUrl	string	'http://[vimeo.com|youtube.com|maps.google.com]...'	Data privay URI of the service.
cssClass	string	'isoi'	CSS-class prefix for the created elements.
language	object	{languageKey: { titleText:'Hey user', [...]}}	Another way to override the texts. languageKey will be set as current language. Have a look at ./src/ts/Language/LanguageData.default.ts for the text keys.

Texts for english and german are built in. Use params.*Text to override some of them. The language will be determined by reading the lang-attribute of the html-tag (de for german and others for english).

There is another way to override a complete language set by using params.language. There is an example at the end of this page.

Build in CSS

Set class="isoi" to the container. isoi creates the basic structure.

You could add one of the following classes as 'theme':

• isoi--dark for a dark UI.
• isoi--light for a light UI.

If you would like to set a predefined ratio, add these classes:

• isoi--ratio isoi--ratio-16by9
• isoi--ratio isoi--ratio-3by2
• isoi--ratio isoi--ratio-4by3
• isoi--ratio isoi--ratio-1by1

A complete set could be:

<div class="isoi isoi--dark isoi--ratio isoi--16by9"></div>

Examples

There are some examples in ./dist/example.data-attribute.html, ./dist/example.instance.html and ./dist/example.override-language.html.

Another service

The service parameter is only used to automatically use the build in texts. If you want to use another service, override the texts, but use one of the service names:

<div class="isoi isoi--dark isoi--ratio isoi--16by9" id="isoi-another-service"></div>
<script>
    new IframeSingleOptIn(
        document.querySelector("#isoi-another-service"),
        'vimeo',
        '<iframe src="https://another-one-bites-the.dust" [...]></iframe>'
        false,
        {
            titleText: 'Queen: Another one bites the dust',
            infoText: 'Maybe Queen makes you emotional, so we have to warn you before you load the stuff ;-)',
            serviceUrlText: '',
            showText: 'Let\'s rock'
        }
    );
</script>

Here is another example using the language parameter. Supported markers are {SERVICE_NAME} and {SERVICE_URL}

<div class="isoi isoi--dark isoi--ratio isoi--16by9" id="isoi-another-language"></div>
<script>
    let languageDeDu = {
        titleTextMap: "Wir benötigen Deine Zustimmung für {SERVICE_NAME}",
        serviceUrlText: "Datenschutzerklärung: {SERVICE_URL}",
        showTextMap: "Zeig mir die Karte!",
        infoTextMap: "Wir verwenden {SERVICE_NAME}. Ein Drittanbieter, um Karteninhalte einzubetten. Dieser Service kann Daten zu Deinen Aktivitäten sammeln. Bitte lese die Details durch und stimme der Nutzung zu, um die Karte anzuzeigen."
    };

    new IframeSingleOptIn(
        document.querySelector("#isoi-another-language"),
        "googlemaps",
        `%3Ciframe[...]iframe%3E`,
        true,
        {
            language: {
                deDu: languageDeDu
            }
        }
    );
</script>