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Reactive animation package for Meteorjs
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README.md

meteor-momentum

Reactive animation package for Meteor.

Momentum allows you to easily and simply re-use animation behaviour in your app via plugins that can be shared easily.

Caveat

We published this package as an exploration of an idea rather than something we rigorously maintain for public consumption. As such, the plugins that we ship probably won't work for many use cases in the wild. You're encouraged to create your own custom plugins specific to the needs of your application. Momentum is designed as a thin interface to uihooks that can be declaratively used in your templates.

Install

meteor add percolate:momentum

Usage

Wrap an element which is being added or removed (or moved) from the DOM in

{{#momentum plugin='X'}}
  {{! your content }}
{{/momentum}}

For example

{{#momentum plugin='right-to-left'}}
  {{#if show}}
    <p>My text!</p>
  {{/if}}
{{/momentum}}

When the show helper changes the element will appear as normal, but mediated by the right-to-left plugin (see the examples folder for some example plugins).

See also: momentum-iron-router

Examples

See the example directory in the project, also hosted at momentum-example.meteor.com

Built-in Plugins

css

Makes it easy to drive css transitions. By default adds the .in, .out and .off-screen classes to conrol the transition. Use the extra option to set another class during the transition. Add a timeout as a fallback if the transtionEnd event doesn't fire.

growl

A simple, but useful plugin to do a "growl" style system notification animation.

right-to-left, left-to-right

Good for mobile-style page-page transition animations.

fade

Fades in/out.

slide-height

Animate height in from zero to full, out from full to zero. Works with auto-height elements.

Your own plugin

Writing a plugin is simple. See the existing plugins for examples. You just need to provide an insertElement and removeElement (and optionally moveElement) hook. These have the same API as Meteor's _uihooks.

Contributions

It would make sense to build packages that provide extra plugins. If there's something you need in the core package to make your package work, please, open an issue or make a pull request.

License

MIT. (c) Percolate Studio, maintained by Zoltan Olah (@zol).

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