openproject/app/assets/stylesheets/layout/_main_menu.sass

//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2018 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2017 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See docs/COPYRIGHT.rdoc for more details.
//++

$toggler-width: 40px


#main-menu,
.main-menu
  bottom: auto
  @include varprop(width, main-menu-width)
  @include varprop(min-width, main-menu-width)
  float: left
  left: 0
  border-right: $main-menu-border-width solid $main-menu-border-color

  // min-height is full height minus header and footer.
  min-height: calc(100vh - 55px)

  @include varprop(background-color, main-menu-bg-color)
  //@include default-transition

  #menu-sidebar
    height: 100%
    
  %absolute-layout-mode &

    position: relative

    #menu-sidebar
      +allow-vertical-scrolling
      -ms-overflow-style: -ms-autohiding-scrollbar
  ul
    margin: 0
    padding: 0

    &.menu_root

      // -------------------- ALL menu items ---------------------------
      li
        float: none
        list-style-type: none
        margin: 0
        padding: 0
        white-space: nowrap
        position: relative
        min-height: 23px

        &.ng-leave
          @include animation(0.5s fade-out)

        [class*="-menu-item"]
          display: flex
          align-items: center

      // -------------------- MAIN menu items ---------------------------
      li
        .main-item-wrapper

          display: flex

          //@include default-transition

          &:hover
            @if $main-menu-enable-toggle-highlighting != true
              // simultaneously hover all menu item anchor tags
              > a
                @include varprop(color, main-menu-hover-font-color)
                &.toggler
                  @include varprop(background, main-menu-bg-hover-background)


          a
            //@include default-transition

            &.selected, &.selected + a
              @include varprop(background, main-menu-bg-selected-background)

              &:hover
                @include varprop(background, main-menu-bg-hover-background)

            &.selected, &.selected + a
              @include varprop(color, main-menu-selected-font-color)

            &:hover
              @include varprop(background, main-menu-bg-hover-background)
              @include varprop(color, main-menu-hover-font-color)


          // placeholder for highlighted left-item-border
          a:not(.toggler)
            @extend .small-12

          a:not(:only-child):first-of-type
            flex: 0 0 calc(100% - 40px)
            max-width: calc(100% - 40px)
            
        .open .toggler
          .icon-toggler:before
            @include icon-mixin-arrow-left1

        // padding for placeholder for highlighted left-item-border
        a
          // work around due to dom manipulation on document: ready:
          // this isn't scoped to .main-item-wrapper to avoid flickering
          padding-left: 11px
        a.toggler
          // explicitly reset to zero to avoid selector precedence problems
          padding-left: 0

    // -------------------- CHILD menu items ---------------------------
    ul.menu-children
      display: none
      padding-top: 10px
      padding-bottom: 10px
      padding: 0
      &.unattached
        border-top: 1px solid #ddd
      li
        &.partial
          // NEEDS CLEANUP: resetting styles in partials.
          background: initial
          &:hover,
          li,
          li:hover
            background: initial
            a
              @include varprop(color, main-menu-font-color)
              padding: initial

        &:hover
          @include varprop(background, main-menu-child-bg-hover-color)

          @if $main-menu-enable-toggle-highlighting != true
            // simultaneously hover all menu item anchor tags
            > a
              @include varprop(color, main-menu-bg-hover-background)

        > a
          //@include default-transition

          &.selected, &.selected + a
            @include varprop(background, main-menu-bg-selected-background)


          &:hover, &.selected, &.selected + a
            @include varprop(color, main-menu-bg-selected-background)

        a
          // children have no icon so we need to push them right.
          padding-left: 32px

          &:hover
            text-decoration: none
            @include varprop(color, main-menu-hover-font-color)
          &.selected
            border: none !important
            @include varprop(color, main-menu-selected-font-color)

  a
    text-decoration: none
    line-height: $main-menu-item-height
    display: block
    position: relative
    height: $main-menu-item-height
    @include varprop(color, main-menu-font-color)
    font-family: $body-font-family
    font-weight: normal
    font-size: $main-menu-font-size
    font-style: normal

  .toggler
    width: $toggler-width
    height: $main-menu-item-height
    text-align: center
  .sub-menu-heading
    float: left

  #toggle-project-menu
    background: none
    height: 100vh
    width: 18px
    position: fixed
    top: 0px
    border-left-width: 2px
    border-left-style: solid
    border-left-color: transparent
    left: calc(#{$main-menu-width} - 2px)
    left: calc(var(--main-menu-width) - 2px)
    vertical-align: middle
    opacity: 0
    z-index: 1

    %absolute-layout-mode &
      z-index: 100

    //@include default-transition
    &:hover
      @include varprop(border-left-color, primary-color)
      opacity: 1
    &.show
      left: calc(#{$main-menu-folded-width} - 1px)
      a.navigation-toggler
        i:before
          @include icon-mixin-arrow-right2
    a.navigation-toggler
      //@include default-transition
      position: absolute
      top: 0
      height: 40px
      width: 16px
      text-align: right
      padding: 50vh 6px 50vh 0
      color: $gray-dark
      // Center toggle icon vertically. The element is higher than it looks like.
      line-height: 38px
      font-size: 11px
      &:hover
        @include varprop(color, main-menu-navigation-toggler-font-hover-color)
  .toggle-follow
    position: absolute
    width: 140px
  .icon-time
    background: none
    padding: 0

$arrow-left-width: 40px
#main-menu
  ul.menu_root
    &.closed
      li
        display: none
      > li.open
        display: list-item
        .main-item-wrapper
          display: none
        .children-menu-header
          padding: 10px
          border-bottom: 1px solid
          border-bottom: $main-menu-border-width solid $main-menu-border-color
          height: calc(#{$main-menu-item-height} + (2 * 10px))

          a.arrow-left-to-project
            display: inline-block
            width: $arrow-left-width
            float: left
            border-radius: 3px
            padding-left: 14px
            padding-right: 14px
            width: 40px
            margin-right: 10px
            &:hover
              @include varprop(background, main-menu-bg-hover-background)

          span.parent-node
            display: inline-block
            width: calc(100% - #{$arrow-left-width})
            height: $main-menu-item-height
            line-height: $main-menu-item-height
        ul.menu-children
          width: 100%
          display: block
          li
            display: list-item
    &.open
      > li
        display: list-item
        .children-menu-header
          display: none


.hidden-navigation
  #main-menu
    width: $main-menu-folded-width
    min-width: $main-menu-folded-width
    ul
      &.menu_root
        > li
          .main-item-wrapper
            a:not(:only-child):first-of-type
              @extend .small-12

          .ellipsis
            text-overflow: clip
            -o-text-overflow: clip
            -ms-text-overflow: clip
          .toggler
            display: none

  #sidebar,
  .menu-children
    display: none

#sidebar
  margin: 30px 0 0 0
  padding: 0 17px 0 17px
  width: auto
  @include varprop(color, main-menu-sidebar-font-color)
  font-family: $body-font-family
  font-style: normal
  overflow: hidden
  text-overflow: ellipsis
  overflow-wrap: initial

  h3
    display: block
    border: none
    @include varprop(color, main-menu-sidebar-h3-color)
    font-weight: normal
    font-size: $main-menu-sidebar-h3-font-size
    margin: 30px 0 8px 0
    padding: 10px 0 0 0

    text-transform: uppercase

  > h3:first-child
    margin-top: 0

  a, a:link
    @include varprop(color, main-menu-sidebar-link-color)
    display: inline
    position: static
    text-decoration: underline

  a:hover
    text-decoration: underline

  label
    @include varprop(color, main-menu-sidebar-font-color)
    max-width: 80%
    vertical-align: top

  ul
    border: none
    overflow-x: hidden
    li
      border: none
    li a
      padding: 0

.menu-wiki-pages-tree
  border-top: $main-menu-border-width solid $main-menu-border-color
  padding-top: 7px
  padding-left: 7px
  padding-right: 7px

.main-menu--segment-header
  color: $gray-dark
  text-transform: uppercase
  padding-left: $hierarchy-span-width
  font-size: 0.8rem

.main-menu--resizer,
main-menu-resizer
  background: none
  height: 100vh
  width: 18px
  position: fixed
  top: 0px
  border-left-width: 2px
  border-left-style: solid
  border-left-color: transparent
  left: calc(#{$main-menu-width} - 2px)
  left: calc(var(--main-menu-width) - 2px)
  vertical-align: middle
  opacity: 0
  z-index: 1
  cursor: col-resize
  %absolute-layout-mode &
    z-index: 100

  //@include default-transition
  &:hover
    @include varprop(border-left-color, primary-color)
    opacity: 1
  &.show
    left: calc(#{$main-menu-folded-width} - 1px)

// #main.hidden-navigation
//   #main-menu
//     ul
//       &.menu_root
//         // -------------------- MAIN menu items ---------------------------
//         > li
//           .main-item-wrapper
//             a:not(:only-child):first-of-type
//               @extend .small-12