_functions.scss

//
// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

@import "@material/theme/functions";
@import "@material/theme/variables"; // for mdc-theme-prop-value
@import "./variables";

//
// Public
//

@function mdc-states-opacity($color, $state) {
  $opacity-map: mdc-states-opacities_($color);

  @if not map-has-key($opacity-map, $state) {
    @error "Invalid state: '#{$state}'. Choose one of: #{map-keys($opacity-map)}";
  }

  @return map-get($opacity-map, $state);
}

//
// Private
//

@function mdc-states-opacities_($color) {
  $color-value: mdc-theme-prop-value($color);
  $opacity-map: if(
    mdc-theme-tone($color-value) == "light",
    $mdc-ripple-light-ink-opacities,
    $mdc-ripple-dark-ink-opacities
  );

  @return $opacity-map;
}