//
// Copyright 2017 Google Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

// MDC Ripple keyframes are split into their own file so that _mixins.scss can rely on them.

@import "../animation/variables";
@import "./variables";

@mixin mdc-ripple-keyframes_ {
  @keyframes mdc-ripple-fg-radius-in {
    from {
      animation-timing-function: $mdc-animation-standard-curve-timing-function;
      // NOTE: For these keyframes, we do not need custom property fallbacks because they are only
      // used in conjunction with `.mdc-ripple-upgraded`. Since MDCRippleFoundation checks to ensure
      // that custom properties are supported within the browser before adding this class, we can
      // safely use them without a fallback.
      transform: translate(var(--mdc-ripple-fg-translate-start, 0)) scale(1);
    }

    to {
      transform: translate(var(--mdc-ripple-fg-translate-end, 0)) scale(var(--mdc-ripple-fg-scale, 1));
    }
  }

  @keyframes mdc-ripple-fg-opacity-in {
    from {
      animation-timing-function: linear;
      opacity: 0;
    }

    to {
      opacity: var(--mdc-ripple-fg-opacity, 0);
    }
  }

  @keyframes mdc-ripple-fg-opacity-out {
    from {
      animation-timing-function: linear;
      opacity: var(--mdc-ripple-fg-opacity, 0);
    }

    to {
      opacity: 0;
    }
  }
}
