/**
 * Copyright 2015 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 "variables";
@import "mixins";

.mdl-checkbox {
  position: relative;

  z-index: 1;

  vertical-align: middle;

  display: inline-block;

  box-sizing: border-box;
  width: 100%;
  height: $checkbox-label-height;
  margin: 0;
  padding: 0;

  &.is-upgraded {
    padding-left: $checkbox-button-size + $checkbox-padding;
  }
}

.mdl-checkbox__input {
  line-height: $checkbox-label-height;

  .mdl-checkbox.is-upgraded & {
    // Hide input element, while still making it respond to focus.
    position: absolute;
    width: 0;
    height: 0;
    margin: 0;
    padding: 0;
    opacity: 0;
    -ms-appearance: none;
    -moz-appearance: none;
    -webkit-appearance: none;
    appearance: none;
    border: none;
  }
}

.mdl-checkbox__box-outline {
  position: absolute;
  top: $checkbox-top-offset;
  left: 0;

  display: inline-block;

  box-sizing: border-box;
  width: $checkbox-button-size;
  height: $checkbox-button-size;
  margin: 0;

  cursor: pointer;
  overflow: hidden;

  border: 2px solid $checkbox-off-color;
  border-radius: 2px;

  z-index: 2;

  .mdl-checkbox.is-checked & {
    border: 2px solid $checkbox-color;
  }

  .mdl-checkbox.is-disabled & {
    border: 2px solid $checkbox-disabled-color;
    cursor: auto;
  }
}

.mdl-checkbox__focus-helper {
  position: absolute;
  top: $checkbox-top-offset;
  left: 0;

  display: inline-block;

  box-sizing: border-box;
  width: $checkbox-button-size;
  height: $checkbox-button-size;
  border-radius: 50%;

  background-color: transparent;

  .mdl-checkbox.is-focused & {
    box-shadow: 0 0 0px ($checkbox-button-size / 2) rgba(0, 0, 0, 0.1);
    background-color: rgba(0, 0, 0, 0.1);
  }

  .mdl-checkbox.is-focused.is-checked & {
    box-shadow: 0 0 0px ($checkbox-button-size / 2) $checkbox-focus-color;
    background-color: $checkbox-focus-color;
  }
}

.mdl-checkbox__tick-outline {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  mask: url("data:image/svg+xml;base64,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");

  background: transparent;
  @include material-animation-default(0.28s);
  transition-property: background;

  .mdl-checkbox.is-checked & {
    background: $checkbox-color url("data:image/svg+xml;base64,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");
  }

  .mdl-checkbox.is-checked.is-disabled & {
    background: $checkbox-disabled-color url("data:image/svg+xml;base64,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");
  }
}

.mdl-checkbox__label {
  position: relative;
  cursor: pointer;
  font-size: $checkbox-label-font-size;
  line-height: $checkbox-label-height;
  margin: 0;

  .mdl-checkbox.is-disabled & {
    color: $checkbox-disabled-color;
    cursor: auto;
  }
}

.mdl-checkbox__ripple-container {
  position: absolute;
  z-index: 2;
  top: -(($checkbox-ripple-size - $checkbox-label-height) / 2);
  left: -(($checkbox-ripple-size - $checkbox-button-size) / 2);

  box-sizing: border-box;
  width: $checkbox-ripple-size;
  height: $checkbox-ripple-size;
  border-radius: 50%;

  cursor: pointer;

  overflow: hidden;
  -webkit-mask-image: -webkit-radial-gradient(circle, white, black);

  & .mdl-ripple {
    background: $checkbox-color;
  }

  .mdl-checkbox.is-disabled & {
    cursor: auto;
  }

  .mdl-checkbox.is-disabled & .mdl-ripple {
    background: transparent;
  }
}