mirror of
https://github.com/Jermolene/TiddlyWiki5
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65 lines
5.1 KiB
Plaintext
65 lines
5.1 KiB
Plaintext
title: $:/plugins/tiddlywiki/consent-banner/docs
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! Features
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If the same wiki is opened in multiple tabs then once the warning has been accepted or declined in one tab then the other tabs will autonatically follow suit.
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Consent is automatically granted if the user logged in (ie the tiddler [[$:/status/IsLoggedIn]] is set to `yes`).
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! Consent Banner Palette Entries
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Add these entries to your current colour palette to change the colours used by the consent banner:
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* ''consent-banner-backdrop-background'' - the colour of the backdrop behind the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-backdrop-background}})
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* ''consent-banner-background'' - the background colour of the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-background}})
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* ''consent-banner-button-background'' - the background colour of buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-background}})
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* ''consent-banner-button-border'' - the border colour of buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-border}})
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* ''consent-banner-button-default-background'' - the background colour for the default button within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-default-background}})
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* ''consent-banner-button-default-foreground'' - the foreground colour for the default button within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-default-foreground}})
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* ''consent-banner-button-foreground'' - the foreground colour of buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-foreground}})
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* ''consent-banner-button-hover-background'' - the background colour of hovered buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-hover-background}})
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* ''consent-banner-button-hover-border'' - the border colour of hovered buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-hover-border}})
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* ''consent-banner-button-hover-foreground'' - the foreground colour of hovered buttons within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-button-hover-foreground}})
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* ''consent-banner-foreground'' - the foreground colour of the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-foreground}})
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* ''consent-banner-hr-background'' - the background colour of horizontal rules within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-hr-background}})
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* ''consent-banner-link-foreground'' - the foreground colour of tiddler links within the consent banner (defaults to {{$:/config/DefaultColourMappings/consent-banner-link-foreground}})
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! Embedded Content Blocking
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Unless disabled via the config tab, content embedded via <iframe>, <embed> or <object> is blocked until the user consents to accept cookies.
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!! Implementation Details
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Embedded content is blocked if the variable `tv-block-embedded-content` is set to `yes`. It is set to the current consent status by a [[global macro|$:/plugins/tiddlywiki/consent-banner/tv-block-embedded-content]]:
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<$codeblock code={{$:/plugins/tiddlywiki/consent-banner/tv-block-embedded-content}}/>
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! ~YouTube macro
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A simple macro for embedding ~YouTube videos is provided to show how to adapt content according to whether consent has been granted. It works by checking the tiddler [[$:/state/consent-banner/accepted]] for the following values:
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* ''empty or missing'' - the user has yet to accept or decline to give their consent
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* `yes` - the user has granted consent
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* `no` - the user has declined consent
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! Customising banner buttons
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The [["accept"|$:/plugins/tiddlywiki/consent-banner/buttons/accept]] and [["decline"|$:/plugins/tiddlywiki/consent-banner/buttons/decline]] buttons in the banner are individual tiddlers with the tag [[$:/tags/ConsentBanner/Button]], allowing them to be customised and extended.
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A common use case is to add a "login" button allowing users to login directly to bypass the banner. This could be implemented as a tiddler tagged [[$:/tags/ConsentBanner/Button]] with the following text:
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```
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<$button message="tm-login" class="tc-consent-button tc-btn-invisible">
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Login
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</$button>
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```
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! Integration with other plugins
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Third party plugins that set cookies can configure themselves to defer setting cookies until the user grants consent. There are several parts to this mechanism:
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* The consent-banner plugin includes a shadow tiddler [[$:/config/cookie-consent-required]] with the text `yes`. The third-party plugin should inspect this tiddler at startup; if it is not set to "yes" then it can proceed to set tiddlers immediately
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* Otherwise, the third-party plugin should listen for changes to the tiddler [[$:/state/consent-banner/accepted]] and only start setting cookies when and if the value changes to "yes"
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The [[Google Analytics plugin|https://github.com/Jermolene/TiddlyWiki5/tree/master/plugins/tiddlywiki/googleanalytics]] shows an example of how this mechanism can be implemented.
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