@charset "UTF-8";

/**
 * Copyright 2016 Leif Olsen. 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.
 */

/*
 * A lightboard is a translucent surface illuminated from behind, used for situations
 * where a shape laid upon the surface needs to be seen with high contrast. In the "old days" of photography
 * photograpers used a lightboard to get a quick view of their slides. The goal is to create a responsive lightbox
 * design, based on flex layout, similar to what is used in Adobe LightRoom to browse images.
 */

// Use of this module requires the user to include variables from material-design-lite
//@import "../../node_modules/material-design-lite/src/variables";
//@import "../../node_modules/material-design-lite/src/mixins";
@import "../variables";

ul.mdlext-lightboard {
  list-style: none;
}

.mdlext-lightboard {
  box-sizing: border-box;
  margin: 0 auto;
  padding: 0;
  display: flex;
  flex-flow:row wrap;
  align-items: stretch;

  *,
  *::before,
  *::after,
  input[type="search"] {
    box-sizing: border-box;
  }

  .mdlext-lightboard__slide {
    background-color: $mdlext-lightboard-slide-background-color;
    border: 1px solid $mdlext-lightboard-slide-border-color;
    border-radius: $mdlext-lightboard-slide-border-radius;
    box-shadow: $mdlext-lightboard-slide-box-shadow;
    position: relative;
    display: block;
    max-width: $mdlext-lightboard-slide-max-size;

    &::before {
      // 1:1 ratio
      // TODO: Use a class for ratio so the grid can display slides with different ratios (16:9, 16:10, 4:3 ...)
      content: '';
      display: block;
      padding-top: 100%;
    }
    &:hover,
    &:active,
    &:focus {
      border-color: $mdlext-lightboard-slide-border-color-hover;
      background-color: $mdlext-lightboard-slide-background-color-hover;
      box-shadow: $mdlext-lightboard-slide-box-shadow-hover;

      figcaption {
        color: rgba(0, 0, 0, 1) !important;
        background-color: rgba(255, 255, 255, 0.2);
      }
    }
    &:focus {
      outline-offset: -2px;
      outline-color: $mdlext-lightboard-focus-outline-color;
    }
    &[aria-selected='true'] {
      background-color: $mdlext-lightboard-slide-active-bacground-color;

      figcaption {
        color: rgba(0, 0, 0, 1) !important;
        background-color: rgba(255, 255, 255, 0.2);
      }
    }
    &__frame,
    &__ripple-container {
      text-decoration: none;
      display: block;
      overflow: hidden;
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;

      &:focus {
        outline-offset: -2px;
        outline-color: $mdlext-lightboard-focus-outline-color;
      }
      & .mdl-ripple {
        background: $mdlext-lightboard-ripple-color;
      }
      figure {
        display: block;
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;

        img {
          position: absolute;
          top: 0;
          left: 0;
          right: 0;
          bottom: 0;
          margin: auto;
          max-width: 100%;
          max-height: 100%;
          border-width: 0;
          border-radius: $mdlext-lightboard-slide-inner-border-radius;
        }
        figcaption {
          @include typo-caption($colorContrast: false, $usePreferred: true);

          color: $mdlext-lightboard-figcaption-text-color;
          position: absolute;
          bottom: -2px;
          white-space: nowrap;
          overflow: hidden;
          max-width: 100%;
          width: 100%;
          text-align: center;
          text-overflow: ellipsis;
          padding: 4px 0;
        }
      }
      &:hover {
        figcaption {
          // As far as I can see there is no way to darken/lighten a text color
          // defined by MDL, due to the "unqote" functions.
          // So this is a hack
          color: rgba(0, 0, 0, 1) !important;
          background-color: rgba(255, 255, 255, 0.2);
        }
      }
    }
  }
}

////// Media / Element queries default, Small //////
.mdlext-lightboard {
  padding: calc((#{$mdlext-lightboard-small-margin} - #{$mdlext-lightboard-small-gutter}) / 2);

  .mdlext-lightboard__slide {
    margin: calc(#{$mdlext-lightboard-small-gutter} / 2);
    width: calc(1 / #{$mdlext-lightboard-small-columns} * 100% - #{$mdlext-lightboard-small-gutter});

    .mdlext-lightboard__slide__frame figure {
      margin: $mdlext-lightboard-small-frame-width;
    }
  }
  &.mdlext-lightboard--no-spacing {
    padding: 0;

    .mdlext-lightboard__slide {
      margin: 0;
      width: calc(1 / #{$mdlext-lightboard-small-columns} * 100%);
    }
  }
}

// Import one of _lightboard-media-queries.scss or _lightboard-eq-js.scss to complete SASS