// Common
.diff-file {
  margin-bottom: $gl-padding;

  &.has-body {
    .file-title {
      box-shadow: 0 -2px 0 0 var(--white);
    }
  }

  table.code tr:last-of-type td:last-of-type {
    @include gl-rounded-bottom-right-base();
  }

  .file-title,
  .file-title-flex-parent {
    cursor: pointer;

    .dropdown-menu {
      cursor: auto;
    }

    @media (max-width: map-get($grid-breakpoints, sm)-1) {
      .file-header-content {
        width: 0;
        flex: 1;
      }

      .file-actions {
        margin-left: $gl-spacing-scale-2;
      }
    }

    @media (min-width: map-get($grid-breakpoints, md)) {
      // The `+11` is to ensure the file header border shows when scrolled -
      // the bottom of the compare-versions header and the top of the file header
      $mr-file-header-top: $mr-version-controls-height + $header-height + $mr-tabs-height + 11;

      position: -webkit-sticky;
      position: sticky;
      top: $mr-file-header-top;
      z-index: 120;

      .with-system-header & {
        top: $mr-file-header-top + $system-header-height;
      }

      .with-system-header.with-performance-bar & {
        top: $mr-file-header-top + $system-header-height + $performance-bar-height;
      }

      &::before {
        content: '';
        position: absolute;
        top: -1px;
        left: -11px;
        width: 10px;
        height: calc(100% + 1px);
        background: $body-bg;
        pointer-events: none;
      }

      .with-performance-bar & {
        top: $mr-file-header-top + $performance-bar-height;
      }

      &.is-commit {
        top: $header-height + $commit-stat-summary-height;

        .with-performance-bar & {
          top: $header-height + $commit-stat-summary-height + $performance-bar-height;
        }
      }

      &.is-compare {
        top: $header-height + $compare-branches-sticky-header-height;

        .with-performance-bar & {
          top: $performance-bar-height + $header-height + $compare-branches-sticky-header-height;
        }
      }
    }

    &:hover {
      background-color: $gray-normal;
    }

    svg {
      vertical-align: middle;
      top: -1px;
    }
  }

  @media (min-width: map-get($grid-breakpoints, md)) {
    &.conflict .file-title,
    &.conflict .file-title-flex-parent {
      top: $header-height;
    }

    .with-performance-bar &.conflict .file-title,
    .with-performance-bar &.conflict .file-title-flex-parent {
      top: $header-height + $performance-bar-height;
    }

    .with-system-header &.conflict .file-title,
    .with-system-header &.conflict .file-title-flex-parent {
      top: $header-height + $system-header-height;
    }

    .with-system-header.with-performance-bar &.conflict .file-title,
    .with-system-header.with-performance-bar &.conflict .file-title-flex-parent {
      top: $header-height + $performance-bar-height + $system-header-height;
    }
  }

  .diff-content {
    background: $white;
    color: $gl-text-color;

    .unfold {
      cursor: pointer;
    }

    .file-mode-changed {
      padding: 10px;
      color: $gray-500;
    }

    .suppressed-container {
      padding: ($padding-base-vertical + 5px) $padding-base-horizontal;
      text-align: center;

      // "Changes suppressed. Click to show." link
      .show-suppressed-diff {
        font-size: 110%;
        font-weight: $gl-font-weight-bold;
      }
    }

    .diff-loading-error-block {
      padding: $gl-padding * 2 $gl-padding;
      text-align: center;
    }
  }

  .image {
    background: $gray-darker;
    text-align: center;
    padding: 30px;

    .wrap {
      display: inline-block;
    }

    .frame {
      display: inline-block;
      background-color: $white;
      line-height: 0;

      img {
        border: 1px solid $white;
        background-image: linear-gradient(45deg,
        $border-color 25%,
        transparent 25%,
        transparent 75%,
        $border-color 75%,
        $border-color 100%),
          linear-gradient(45deg,
        $border-color 25%,
        transparent 25%,
        transparent 75%,
        $border-color 75%,
        $border-color 100%);
        background-size: 10px 10px;
        background-position: 0 0, 5px 5px;
        max-width: 100%;
      }

      &.deleted {
        border: 1px solid $deleted;
      }

      &.added {
        border: 1px solid $added;
      }
    }

    .image-info {
      font-size: 12px;
      margin: 5px 0 0;
      color: $diff-image-info-color;
    }

    .view.swipe {
      position: relative;

      .swipe-frame {
        display: block;
        margin: auto;
        position: relative;
      }

      .swipe-wrap {
        overflow: hidden;
        border-right: 1px solid $gray-300;
        position: absolute;
        display: block;
        top: 13px;
        right: 7px;

        &.left-oriented {
          /* only for commit view (different swipe viewer) */
          border-right: 0;
          border-left: 1px solid $gray-300;
        }
      }

      .frame {
        top: 0;
        right: 0;

        &.old-diff {
          /* only for commit / compare view */
          position: absolute;
        }

        &.deleted {
          margin: 0;
          display: block;
          top: 13px;
          right: 7px;
        }
      }

      .swipe-bar {
        display: block;
        height: 100%;
        width: 15px;
        z-index: 100;
        position: absolute;
        cursor: pointer;

        &:hover {
          .top-handle {
            background-position: -15px 3px;
          }

          .bottom-handle {
            background-position: -15px -11px;
          }
        }

        .top-handle {
          display: block;
          height: 14px;
          width: 15px;
          position: absolute;
          top: 0;
          background: image-url('swipemode_sprites.gif') 0 3px no-repeat;
        }

        .bottom-handle {
          display: block;
          height: 14px;
          width: 15px;
          position: absolute;
          bottom: 0;
          background: image-url('swipemode_sprites.gif') 0 -11px no-repeat;
        }
      }
    }

    //.view.swipe
    .view.onion-skin {
      .onion-skin-frame {
        display: block;
        margin: auto;
        position: relative;
      }

      .frame.added,
      .frame.deleted {
        position: absolute;
        display: block;
        top: 0;
        left: 0;
      }

      .controls {
        display: block;
        height: 14px;
        width: 300px;
        z-index: 100;
        position: absolute;
        bottom: 0;
        left: 50%;
        margin-left: -150px;

        .drag-track {
          display: block;
          position: absolute;
          top: 0;
          left: 12px;
          height: 10px;
          width: 276px;
          background: image-url('onion_skin_sprites.gif') -4px -20px repeat-x;
        }

        .dragger {
          display: block;
          position: absolute;
          left: 0;
          top: 0;
          height: 14px;
          width: 14px;
          background: image-url('onion_skin_sprites.gif') 0 -34px repeat-x;
          cursor: pointer;
        }

        .transparent {
          display: block;
          position: absolute;
          top: 2px;
          right: 0;
          height: 10px;
          width: 10px;
          background: image-url('onion_skin_sprites.gif') -2px 0 no-repeat;
        }

        .opaque {
          display: block;
          position: absolute;
          top: 2px;
          left: 0;
          height: 10px;
          width: 10px;
          background: image-url('onion_skin_sprites.gif') -2px -10px no-repeat;
        }
      }
    }

    //.view.onion-skin
  }

  .view-modes {
    padding: 10px;
    text-align: center;
    background: $gray-darker;

    ul,
    li {
      list-style: none;
      margin: 0;
      padding: 0;
      display: inline-block;
    }

    li {
      color: $diff-view-modes-color;
      border-left: 1px solid $diff-view-modes-border;
      padding: 0 12px 0 16px;
      cursor: pointer;

      &:first-child {
        border-left: 0;
      }

      &:hover {
        text-decoration: underline;
      }

      &.active {
        cursor: default;
        color: $gl-text-color;

        &:hover {
          text-decoration: none;
        }
      }

      &.disabled {
        display: none;
      }
    }
  }

  .diff-file-container {
    .frame.deleted {
      border: 1px solid $deleted;
      background-color: inherit;
    }

    .frame.added {
      border: 1px solid $added;
      background-color: inherit;
    }

    .swipe.view,
    .onion-skin.view {
      .swipe-wrap {
        top: 0;
        left: 0;
      }

      .frame.deleted {
        top: 0;
        right: 0;
      }

      .swipe-bar {
        top: 0;

        .top-handle {
          top: -14px;
          left: -7px;
        }

        .bottom-handle {
          bottom: -14px;
          left: -7px;
        }
      }

      .file-container {
        display: inline-block;

        .file-content {
          padding: 0;

          img {
            max-width: none;
          }
        }
      }
    }

    .onion-skin.view .controls {
      bottom: -25px;
    }
  }

  .discussion-notes .discussion-notes {
    margin-left: 0;
    border-left: 0;
  }
}

.diff-table.code,
table.code {
  width: 100%;
  font-family: $monospace-font;
  border: 0;
  border-collapse: separate;
  margin: 0;
  padding: 0;
  table-layout: fixed;
  border-radius: 0 0 $border-radius-default $border-radius-default;

  .diff-tr:first-of-type.line_expansion > .diff-td,
  tr:first-of-type.line_expansion > td {
    border-top: 0;
  }

  .diff-tr:nth-last-of-type(2).line_expansion > .diff-td,
  tr:nth-last-of-type(2).line_expansion,
  tr:last-of-type.line_expansion {
    > td {
      border-bottom: 0;
    }
  }

  .diff-tr.line_holder .diff-td,
  tr.line_holder td {
    line-height: $code-line-height;
    font-size: $code-font-size;
    vertical-align: top;

    span {
      white-space: break-spaces;

      &.context-cell {
        display: inline-block;
        width: 100%;
        height: 100%;
      }

      &.line {
        word-wrap: break-word;
      }
    }

    &.diff-line-num {
      user-select: none;
      margin: 0;
      padding: 0 10px 0 5px;
      border-right-width: 1px;
      border-right-style: solid;
      text-align: right;
      width: 50px;
      position: relative;
      white-space: nowrap;

      a {
        transition: none;
        float: left;
        width: 100%;
        font-weight: $gl-font-weight-normal;

        &[disabled] {
          cursor: default;

          &:hover,
          &:active {
            text-decoration: none;
          }
        }
      }

      &:not(.js-unfold-bottom) a::before {
        content: attr(data-linenumber);
      }
    }

    &.line_content {
      display: block;
      margin: 0;
      padding: 0 1.5em;
      border: 0;
      position: relative;
      white-space: pre-wrap;

      &.parallel {
        display: table-cell;
        width: 46%;
      }

      &.old {
        &::before {
          content: '-';
          position: absolute;
          left: 0.5em;
        }

        &.with-coverage::before {
          left: 0;
        }
      }

      &.new {
        &::before {
          content: '+';
          position: absolute;
          left: 0.5em;
        }

        &.with-coverage::before {
          left: 0;
        }
      }
    }
  }

  .line_holder:last-of-type {
    .diff-td:first-child,
    td:first-child {
      border-bottom-left-radius: $border-radius-default;
    }
  }

  &.left-side-selected {
    .diff-td.line_content.parallel.right-side,
    td.line_content.parallel.right-side {
      user-select: none;
    }
  }

  &.right-side-selected {
    .diff-td.line_content.parallel.left-side,
    td.line_content.parallel.left-side {
      user-select: none;
    }
  }
}

// Merge request diff grid layout
.diff-grid {
  .diff-td {
    // By default min-width is auto with 1fr which causes some overflow problems
    // https://gitlab.com/gitlab-org/gitlab/-/issues/296222
    min-width: 0;
  }

  .diff-grid-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .diff-grid-left,
  .diff-grid-right {
    display: grid;
    // Zero width column is a placeholder for the EE inline code quality diff
    // see ee/.../diffs.scss for more details
    grid-template-columns: 50px 8px 0 1fr;
  }

  .diff-grid-comments {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .diff-grid-drafts {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  &.inline-diff-view {
    .diff-grid-comments {
      display: grid;
      grid-template-columns: 1fr;
    }

    .diff-grid-drafts {
      display: grid;
      grid-template-columns: 1fr;
    }

    .diff-grid-row {
      grid-template-columns: 1fr;
    }

    .diff-grid-left,
    .diff-grid-right {
      // Zero width column is a placeholder for the EE inline code quality diff
      // see ee/../diffs.scss for more details
      grid-template-columns: 50px 50px 8px 0 1fr;
    }
  }
}

// Merge request diff grid layout overrides
.diff-table.code .diff-tr.line_holder .diff-td.line_content.parallel {
  width: unset;
}

.diff-stats {
  align-items: center;
  padding: 0 1rem;

  .diff-stats-contents {
    display: contents;
  }

  .diff-stats-group {
    padding: 0 0.25rem;
  }

  svg.diff-stats-icon {
    vertical-align: text-bottom;
  }

  &.is-compare-versions-header {
    .diff-stats-group {
      padding: 0 0.25rem;
    }
  }
}

.file-content .diff-file {
  margin: 0;
  border: 0;
}

.diff-wrap-lines .line_content {
  white-space: pre-wrap;
}

.inline-parallel-buttons {
  float: right;
}

.merge-request-details .file-content.image_file img {
  max-height: 50vh;
}

// Mobile
@media (max-width: 480px) {
  .diff-title {
    margin: 0;

    .file-mode {
      display: none;
    }
  }

  .diff-controls {
    position: static;
    text-align: center;
  }
}

// Bigger screens
@media (min-width: 481px) {
  .diff-title {
    margin-right: 200px;

    .file-mode {
      margin-left: 10px;
    }
  }

  .diff-controls {
    float: right;
    position: absolute;
    top: 5px;
    right: 15px;
  }
}

.files {
  .diff-file:not(.is-virtual-scrolling):last-child {
    margin-bottom: 0;
  }
}

.diff-comment-avatar-holders {
  position: absolute;
  margin-left: -$gl-padding;
  z-index: 100;
  @include code-icon-size();

  &:hover {
    .diff-comment-avatar,
    .diff-comments-more-count {
      @for $i from 1 through 4 {
        $x-pos: 14px;

        &:nth-child(#{$i}) {
          @if $i == 4 {
            $x-pos: 14.5px;
          }

          transform: translateX((($i * $x-pos) - $x-pos));

          &:hover {
            transform: translateX((($i * $x-pos) - $x-pos));
          }
        }
      }
    }

    .diff-comments-more-count {
      padding-left: 2px;
      padding-right: 2px;
      width: auto;
    }
  }
}

.diff-comment-avatar,
.diff-comments-more-count {
  position: absolute;
  left: 0;
  margin-right: 0;
  border-color: $white;
  cursor: pointer;
  transition: all 0.1s ease-out;
  @include code-icon-size();

  @for $i from 1 through 4 {
    &:nth-child(#{$i}) {
      z-index: (4 - $i);
    }
  }

  .avatar {
    @include code-icon-size();
  }
}

.diff-comments-more-count {
  padding-left: 0;
  padding-right: 0;
  overflow: hidden;
  @include code-icon-size();
}

.diff-comments-more-count,
.diff-notes-collapse {
  @include avatar-counter(50%);
}

.diff-notes-collapse {
  border: 0;
  border-radius: 50%;
  padding: 0;
  transition: transform 0.1s ease-out;
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  @include code-icon-size();

  .collapse-icon {
    height: 50%;
    width: 100%;
  }

  svg {
    vertical-align: middle;
  }

  .collapse-icon,
  path {
    fill: $white;
  }

  &:focus {
    outline: 0;
  }
}

.commits-container {
  .diff-files-changed {
    @include media-breakpoint-up(sm) {
      top: $header-height;

      .with-performance-bar & {
        top: $header-height + $performance-bar-height;
      }
    }
  }
}

.diff-files-changed {
  .inline-parallel-buttons {
    @include gl-relative;
    z-index: 1;
  }

  @include media-breakpoint-up(sm) {
    @include gl-sticky;
    top: $header-height + $mr-tabs-height;
    @include gl-bg-white;
    z-index: 200;

    .with-performance-bar & {
      top: $header-height + $mr-tabs-height + $performance-bar-height;
    }

    &.is-stuck {
      @include gl-py-0;
      border-top: 1px solid $white-dark;
      border-bottom: 1px solid $white-dark;

      .diff-stats-additions-deletions-expanded,
      .inline-parallel-buttons {
        @include gl-display-none;
      }
    }
  }

  @include media-breakpoint-up(lg) {
    &.is-stuck {
      .diff-stats-additions-deletions-collapsed {
        @include gl-display-block;
      }
    }
  }
}


.diff-file-changes {
  max-width: 560px;
  width: 100%;
  z-index: 150;
  min-height: $dropdown-min-height;
  max-height: $dropdown-max-height;
  overflow-y: auto;
  margin-bottom: 0;

  @include media-breakpoint-up(sm) {
    left: $gl-padding;
  }

  .dropdown-input .dropdown-input-search {
    pointer-events: all;
  }

  .diff-changed-file {
    display: flex;
    padding-top: 8px;
    padding-bottom: 8px;
    min-width: 0;
  }

  .diff-file-changed-icon {
    margin-top: 2px;
  }

  .diff-changed-file-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .diff-changed-file-name,
  .diff-changed-blank-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .diff-changed-blank-file-name {
    color: $gl-text-color-tertiary;
    font-style: italic;
  }

  .diff-changed-file-path {
    color: $gl-text-color-tertiary;
  }

  .diff-changed-stats {
    margin-left: auto;
    white-space: nowrap;
  }
}

.diff-file-changes-path {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note-container {
  background-color: $gray-light;
  border-top: 1px solid $white-normal;

  // double jagged line divider
  .discussion-notes + .discussion-notes::before,
  .diff-file-discussions + .discussion-form::before {
    content: '';
    position: relative;
    display: block;
    width: 100%;
    height: 10px;
    background-color: $white;
    background-image: linear-gradient(45deg,
    transparent,
    transparent 73%,
    $diff-jagged-border-gradient-color 75%,
    $white 80%),
      linear-gradient(225deg,
    transparent,
    transparent 73%,
    $diff-jagged-border-gradient-color 75%,
    $white 80%),
      linear-gradient(135deg,
    transparent,
    transparent 73%,
    $diff-jagged-border-gradient-color 75%,
    $white 80%),
      linear-gradient(-45deg,
    transparent,
    transparent 73%,
    $diff-jagged-border-gradient-color 75%,
    $white 80%);
    background-position: 5px 5px, 0 5px, 0 5px, 5px 5px;
    background-size: 10px 10px;
    background-repeat: repeat;
  }

  .diff-file-discussions + .discussion-form {
    padding: $gl-padding;

    &::before {
      width: auto;
      margin-left: -$gl-padding;
      margin-right: -$gl-padding;
      margin-bottom: $gl-padding;
    }
  }

  .notes {
    position: relative;
  }

  .diff-notes-collapse {
    position: absolute;
    left: -12px;
  }
}

.diff-file .note-container > .new-note,
.note-container .discussion-notes.diff-discussions {
  margin-left: 100px;
  border-left: 1px solid $white-normal;
}

.notes.active {
  .diff-file .note-container > .new-note,
  .note-container .discussion-notes {
    // Override our margin and border (set for diff tab)
    // when user is on the discussion tab for MR
    margin-left: inherit;
    border-left: inherit;
  }
}

// Notes tweaks for the Changes tab ONLY
.diff-tr {
  .timeline-discussion-body {
    clear: left;

    .note-body {
      margin-top: 0 !important;
    }
  }

  .timeline-entry img.avatar {
    margin-top: -2px;
    margin-right: $gl-padding-8;
  }

  // tiny adjustment to vertical align with the note header text
  .discussion-collapsible .timeline-icon {
    padding-top: 2px;
  }
}

.files:not([data-can-create-note]) .frame {
  cursor: auto;
}

.frame.click-to-comment,
.btn-transparent.image-diff-overlay-add-comment {
  position: relative;
  cursor: image-url('illustrations/image_comment_light_cursor.svg') $image-comment-cursor-left-offset $image-comment-cursor-top-offset,
    auto;

  // Retina cursor
  cursor: image-set(image-url('illustrations/image_comment_light_cursor.svg') 1x,
  image-url('illustrations/image_comment_light_cursor@2x.svg') 2x) $image-comment-cursor-left-offset $image-comment-cursor-top-offset,
    auto;

  .comment-indicator {
    position: absolute;
    padding: 0;
    width: (2px * $image-comment-cursor-left-offset);
    height: (2px * $image-comment-cursor-top-offset);
    color: $blue-400;
    // center the indicator to match the top left click region
    margin-top: (-1px * $image-comment-cursor-top-offset) + 2;
    margin-left: (-1px * $image-comment-cursor-left-offset) + 1;

    svg {
      width: 100%;
      height: 100%;
    }

    &:focus {
      outline: none;
    }
  }
}

.frame .badge.badge-pill,
.image-diff-avatar-link .badge.badge-pill,
.user-avatar-link .badge.badge-pill,
.notes > .badge.badge-pill {
  position: absolute;
  background-color: $blue-400;
  color: $white;
  border: $white 1px solid;
  min-height: $gl-padding;
  padding: 5px 8px;
  border-radius: 12px;

  &:focus {
    outline: none;
  }
}

.frame .badge.badge-pill,
.frame .image-comment-badge,
.frame .comment-indicator {
  // Center align badges on the frame
  transform: translate(-50%, -50%);
}

.image-comment-badge {
  position: absolute;
  width: 24px;
  height: 24px;
  padding: 0;
  background: none;
  border: 0;

  > svg {
    width: 100%;
    height: 100%;
  }
}

.image-diff-avatar-link,
.user-avatar-link {
  position: relative;

  .badge.badge-pill,
  .image-comment-badge {
    top: 25px;
    right: 8px;
  }
}

.notes > .badge.badge-pill {
  display: none;
  left: -13px;
}

.discussion-notes {
  min-height: 35px;

  &:first-child {
    // First child does not have the jagged borders
    min-height: 25px;
  }

  &.collapsed {
    background-color: $white;

    .diff-notes-collapse,
    .note,
    .discussion-reply-holder {
      display: none;
    }

    .notes > .badge.badge-pill {
      display: block;
    }
  }
}

.discussion-body .image .frame {
  position: relative;
}

.discussion-collapsible {
  margin: 0 $gl-padding $gl-padding;

  .notes {
    border-radius: $border-radius-default;
  }
}

.parallel {
  .discussion-collapsible {
    margin: $gl-padding;
    margin-top: 0;
  }
}

.image-diff-overlay,
.image-diff-overlay-add-comment {
  top: 0;
  left: 0;

  &:active,
  &:focus {
    outline: 0;
  }
}

.diff-suggest-popover {
  &.popover {
    width: 250px;
    min-width: 250px;
    z-index: 210;
  }

  .popover-header {
    display: none;
  }
}

@media (max-width: map-get($grid-breakpoints, md)-1) {
  .diffs .files {
    @include fixed-width-container;
    flex-direction: column;
  }

  .discussion-collapsible {
    margin: $gl-padding;
    margin-top: 0;
  }
}

// Note: Prevents tall files from appearing above sticky tabs
.diffs .vue-recycle-scroller__item-view > div:not(.active) {
  position: absolute;
  bottom: 100vh;
}
