superset-frontend/packages/superset-frontend/src/dashboard/stylesheets/popover-menu.less

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
.with-popover-menu {
  position: relative;
  outline: none;
}

.grid-row.grid-row--empty .with-popover-menu {
  /* drop indicator doesn't show up without this */
  width: 100%;
  height: 100%;
}

.with-popover-menu--focused:after {
  content: '';
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  border: 2px solid @indicator-color;
  pointer-events: none;
}

.popover-menu {
  position: absolute;
  flex-wrap: nowrap;
  left: 1px;
  top: -42px;
  height: 40px;
  padding: 0 16px;
  background: @lightest;
  box-shadow: 0 1px 2px 1px fade(@darkest, @opacity-medium-light);
  font-size: @font-size-m;
  cursor: default;
  z-index: @z-index-max;

  &,
  .menu-item {
    display: flex;
    flex-direction: row;
    align-items: center;
  }

  /* vertical spacer after each menu item */
  .menu-item:not(:only-child):not(:last-child):after {
    content: '';
    width: 1;
    height: 100%;
    background: @gray-light;
    margin: 0 16px;
  }

  .popover-dropdown.btn {
    border: none;
    padding: 0;
    font-size: inherit;
    color: @almost-black;
  }
}

/* the focus menu doesn't account for parent padding */
.dashboard-component-tabs li .with-popover-menu--focused:after {
  top: -12px;
  left: -8px;
  width: ~'calc(100% + 16px)'; /* escape for .less */
  height: ~'calc(100% + 28px)';
}

.dashboard-component-tabs li .popover-menu {
  top: -56px;
  left: -7px;
}

.popover-menu .popover-dropdown.btn,
.hover-dropdown .btn {
  &:hover,
  &:active,
  &:focus {
    background: initial;
    box-shadow: none;
  }
}

.hover-dropdown,
.popover-menu {
  li.dropdown-item {
    &:hover a {
      background: @menu-hover;
    }

    &.active a {
      background: @gray-light;
      font-weight: @font-weight-bold;
      color: @almost-black;
    }
  }
}

.popover-dropdown .caret {
  /* without this the caret doesn't take up full width / is clipped */
  width: auto;
  border-top-color: transparent;
}

/* background style menu */
.background-style-option {
  display: inline-block;

  &:before {
    content: '';
    width: 1em;
    height: 1em;
    margin-right: 8px;
    display: inline-block;
    vertical-align: middle;
  }

  &.background--white {
    padding-left: 0;
    background: transparent;

    &:before {
      background: @lightest;
      border: 1px solid @gray-light;
    }
  }

  /* Create the transparent rect icon */
  &.background--transparent:before {
    background-image: linear-gradient(45deg, @gray 25%, transparent 25%),
      linear-gradient(-45deg, @gray 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, @gray 75%),
      linear-gradient(-45deg, transparent 75%, @gray 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
  }
}