ember-cli add-on for modularizing your styles
- Ember.js v4.4 or above
- Ember CLI v4.4 or above
- Node.js v14 or above
ember install ember-cli-styled
- Separate styles by route and/or component
- Automatically apply styles based on the current route
- Add polymorphic behavior to your styles
Inject the styled service into your application route, and call the
initialize() method.
import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';
export default class ApplicationRoute extends Route {
@service
styled;
constructor () {
super (...arguments);
this.styled.initialize ();
}
}Use the style blueprint to generate the style for a route:
ember g style [name]
For example, here is the command to generate the style for route a/b/c:
ember g style a/b/c
This will generate the a style file that contains the following contents:
// app/styles/routes/a/b/_c.scss
.route__a-b-c {
}Now, class names that appear within the scope .route__a-b-c will only be applied
when the user enters route a/b/c.
Use the component-style blueprint to generate the style for a component:
ember g component-style [name]
For example, here is the command to generate the style for component foo-bar:
ember g component-style foo-bar
This will generate a style that contains the following contents:
// app/styles/components/_foo-bar.scss
.foo-bar {
}Now, class names that appear within the scope .foo-bar will be applied to components
that have foo-bar added to its classNames property.
=======
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To understand how ember-cli-styled works, you must first understand how routes
work in Ember. Whenever you enter or exit a route, the route fires the activate
and deactivate event, respectively, on the Route class. The deactivate event,
if applicable, is always fired before the activate event. Likewise, routes (not
to be mistaken with URL paths) can have child routes. For example, in a/b/c then
a route has a child route of b, which has a child route of c. Each route
has the option of providing a {{outlet}} for which the child route (or template)
can generate its template code.
In the example route a/b/c, Ember will first fire the activate on route
a, then fire the activate event on route a/b, and lastly fire the activate
event on route a/b/c.
<<<<<<< HEAD
ember-cli-styled uses this behavior to apply and remove style class names that correspond
to a given route as the user routes around your application. All style class names are
applied the the body HTML element. In the example above, ember-cli-styled generate
a body element with the following class names:
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<body class="route__a route__a-b route__a-b-c">
</body><<<<<<< HEAD
This allows you to separate styles based on route definitions instead of adding them
all to app.css or app.scss. For example, if you have styles that are applicable
to all child routes of a/b, like a/b/c or a/b/d, then you can define it in
.route__a-b.
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Happy Coding!