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118 lines
4.4 KiB
Markdown
118 lines
4.4 KiB
Markdown
# Primer CSS Tooltips
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[](https://www.npmjs.org/package/primer-tooltips)
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[](https://travis-ci.org/primer/primer-css)
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> Add tooltips built entirely in CSS to nearly any element. Just add a few classes and an aria-label attribute.
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This repository is a module of the full [primer-css][primer-css] repository.
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## Install
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This repository is distributed with [npm][npm]. After [installing npm][install-npm], you can install `primer-tooltips` with this command.
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```
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$ npm install --save primer-tooltips
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```
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## Usage
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The source files included are written in [Sass][sass] (`scss`) You can simply point your sass `include-path` at your `node_modules` directory and import it like this.
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```scss
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@import "primer-tooltips/index.scss";
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```
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You can also import specific portions of the module by importing those partials from the `/lib/` folder. _Make sure you import any requirements along with the modules._
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## Build
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For a compiled **css** version of this module, a npm script is included that will output a css version to `build/build.css` The built css file is also included in the npm package.
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```
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$ npm run build
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```
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## Documentation
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<!-- %docs
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title: Tooltips
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status: Stable
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-->
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Add tooltips built entirely in CSS to nearly any element. Just add a few classes and an `aria-label` attribute.
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**Attention**: we use `aria-label` for tooltips instead of something like `data-tooltip` because it is crucial that the tooltip content is available for screen reader users as well. However, `aria-label` **replaces** the text content of an element for screen reader users, so only use tooltip if there is no better way to present the information, or consider using `title` for supplement information.
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In addition, you'll want to specify a direction:
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- `.tooltipped-n`
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- `.tooltipped-ne`
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- `.tooltipped-e`
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- `.tooltipped-se`
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- `.tooltipped-s`
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- `.tooltipped-sw`
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- `.tooltipped-w`
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- `.tooltipped-nw`
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Tooltip classes will conflict with Octicon classes, and as such, must go on a parent element instead of the icon.
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```html
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<span class="tooltipped tooltipped-n border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North side.">
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Tooltip North
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</span>
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<span class="tooltipped tooltipped-ne border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North East side.">
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Tooltip North East
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</span>
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<span class="tooltipped tooltipped-e border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the East side.">
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Tooltip East
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</span>
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<span class="tooltipped tooltipped-se border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South East side.">
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Tooltip South East
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</span>
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<span class="tooltipped tooltipped-s border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South side.">
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Tooltip South
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</span>
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<span class="tooltipped tooltipped-sw border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South West side.">
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Tooltip South West
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</span>
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<span class="tooltipped tooltipped-w border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the West side.">
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Tooltip West
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</span>
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<span class="tooltipped tooltipped-nw border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North West side.">
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Tooltip North West
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</span>
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```
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#### Tooltips with multiple lines
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Use `.tooltipped-multiline` when you have long content. This style has some limitations: you cannot pre-format the text with newlines, and tooltips are limited to a max-width of `250px`.
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```html
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<span class="tooltipped tooltipped-multiline tooltipped-n border p-2" aria-label="This is the tooltip with multiple lines. This is the tooltip with multiple lines.">
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Tooltip with multiple lines
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</span>
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```
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#### Tooltips No Delay
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By default the tooltips have a slight delay before appearing. This is to keep multiple tooltips in the UI from being distracting. There is a modifier class you can use to override this. `.tooltipped-no-delay`
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```html
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<span class="tooltipped tooltipped-n tooltipped-no-delay border p-2" aria-label="This is the tooltip on the no delay side.">
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Tooltip no delay
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</span>
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```
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<!-- %enddocs -->
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## License
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[MIT](./LICENSE) © [GitHub](https://github.com/)
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[primer-css]: https://github.com/primer/primer
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[docs]: http://primercss.io/
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[npm]: https://www.npmjs.com/
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[install-npm]: https://docs.npmjs.com/getting-started/installing-node
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[sass]: http://sass-lang.com/
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