//
// Copyright IBM Corp. 2016, 2018
//
// This source code is licensed under the Apache-2.0 license found in the
// LICENSE file in the root directory of this source tree.
//

//----------------------------------------------
// Mixins
// ---------------------------------------------
//
//   Category             ||  Description
//   ===========================================
//   Misc                 ||  General helper @mixins
//   Deprecated           ||  Not used anymore
//   ===========================================

//----------------------------------------------
// Misc
// ---------------------------------------------

@import 'vars';
@import 'css--reset';
@import 'typography';
@import './vendor/@rocketsoftware/elements/scss/import-once/import-once';

/// Adds text overflow styling
/// @access public
/// @param {Number} $width [false] - Value of width if you want to set width, else nothing
/// @example @include text-overflow(300px);
/// @group global-helpers
@mixin text-overflow($width: false) {
  display: block;
  overflow-x: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;

  // apply a width if width parameter exists
  @if ($width) {
    width: $width;
  }
}

/// Adds placeholder text color
/// @access public
/// @example @include placeholder-colors;
/// @group global-helpers
@mixin placeholder-colors {
  color: $text-05;
  opacity: 1;
}

/// Adds box shadow
/// @access public
/// @example @include box-shadow;
/// @group global-helpers
@mixin box-shadow {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/// Adds outline styles depending on specific type
/// @access public
/// @param {String} $type ['border'] - Type of outline from: `border`, `blurred`, `outline`, `invalid`, `reset`
/// @example @include focus-outline('outline');
/// @group global-helpers
@mixin focus-outline($type: 'border') {
  @if ($type == 'border') {
    outline: 1px solid $focus;

    @media screen and (prefers-contrast) {
      outline-style: dotted;
    }
  }

  @if ($type == 'blurred') {
    outline: 1px solid transparent;
    box-shadow: 0 0 0 3px $focus;
  }

  @if ($type == 'outline') {
    outline: 2px solid $focus;
    outline-offset: -2px;

    @media screen and (prefers-contrast) {
      outline-style: dotted;
    }
  }

  @if ($type == 'outline-compat') {
    box-sizing: border-box;
    border: 2px solid $focus;

    @media screen and (prefers-contrast) {
      border-style: dotted;
    }
  }

  @if ($type == 'invalid') {
    outline: 2px solid $support-01;
    outline-offset: -2px;

    @media screen and (prefers-contrast) {
      outline-style: dotted;
    }
  }

  @if ($type == 'reset') {
    outline: 2px solid transparent;
    outline-offset: -2px;
  }
}

/// Adds rotational transformation
/// @access public
/// @param {Number} $deg - How many degrees to rotate
/// @param {Number} $speed - Speed of rotation
/// @param {Value} $origin [center] - `transform-origin`
/// @example @include rotate(90deg, 300ms);
/// @group global-helpers
@mixin rotate($deg, $speed, $origin: center) {
  transform: rotate($deg);
  transform-origin: $origin;
  transition: transform $speed;
}

/// Adds styles to hide content
/// @access public
/// @group global-helpers
@mixin hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
  visibility: inherit;
  clip: rect(0, 0, 0, 0);
}

/// Resets button styles
/// @access public
/// @param {Bool} $width [true] - Sets width to 100% if true
/// @example @include button-reset($width: false);
/// @group global-helpers
@mixin button-reset($width: true) {
  @include reset;

  display: inline-block;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
  appearance: none;

  @if ($width == true) {
    width: 100%;
  }

  &::-moz-focus-inner {
    border: 0;
  }
}

/// Skeleton loading animation
/// @access public
/// @example @include skeleton;
/// @group global-helpers
@mixin skeleton {
  position: relative;
  padding: 0;
  background: $skeleton-01;
  border: none;
  box-shadow: none;
  pointer-events: none;

  &:hover,
  &:focus,
  &:active {
    border: none;
    outline: none;
    cursor: default;
  }

  &::before {
    position: absolute;
    width: 100%;
    height: 100%;
    background: $skeleton-02;
    animation: 3000ms ease-in-out skeleton infinite;
    content: '';
    will-change: transform-origin, transform, opacity;

    @media (prefers-reduced-motion: reduce) {
      animation: none;
    }
  }
}

@include exports('skeleton') {
  @keyframes skeleton {
    0% {
      transform: scaleX(0);
      transform-origin: left;
      opacity: 0.3;
    }
    20% {
      transform: scaleX(1);
      transform-origin: left;
      opacity: 1;
    }
    28% {
      transform: scaleX(1);
      transform-origin: right;
    }
    51% {
      transform: scaleX(0);
      transform-origin: right;
    }
    58% {
      transform: scaleX(0);
      transform-origin: right;
    }
    82% {
      transform: scaleX(1);
      transform-origin: right;
    }
    83% {
      transform: scaleX(1);
      transform-origin: left;
    }
    96% {
      transform: scaleX(0);
      transform-origin: left;
    }
    100% {
      transform: scaleX(0);
      transform-origin: left;
      opacity: 0.3;
    }
  }
}