polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.html

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@license
Copyright (C) 2017 The Android Open Source Project

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

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distributed under the License is distributed on an "AS IS" BASIS,
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<link rel="import" href="/bower_components/polymer/polymer.html">

<link rel="import" href="../../../behaviors/fire-behavior/fire-behavior.html">
<link rel="import" href="../../../behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior.html">
<link rel="import" href="/bower_components/iron-dropdown/iron-dropdown.html">
<link rel="import" href="/bower_components/iron-fit-behavior/iron-fit-behavior.html">
<link rel="import" href="../../shared/gr-cursor-manager/gr-cursor-manager.html">
<script src="../../../scripts/rootElement.js"></script>
<link rel="import" href="../../../styles/shared-styles.html">

<dom-module id="gr-autocomplete-dropdown">
  <template>
    <style include="shared-styles">
      :host {
        z-index: 100;
      }
      :host([is-hidden]) {
        display: none;
      }
      ul {
        list-style: none;
      }
      li {
        border-bottom: 1px solid var(--border-color);
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        padding: .5em .75em;
      }
      li:last-of-type {
        border: none;
      }
      li:focus {
        outline: none;
      }
      li:hover {
        background-color: var(--hover-background-color);
      }
      li.selected {
        background-color: var(--selection-background-color);
      }
      .dropdown-content {
        background: var(--dropdown-background-color);
        box-shadow: rgba(0, 0, 0, 0.3) 0 1px 3px;
        max-height: 50vh;
        overflow: auto;
      }
      @media only screen and (max-height: 35em) {
        .dropdown-content {
          max-height: 80vh;
        }
      }
      .label {
        color: var(--deemphasized-text-color);
        padding-left: 1em;
      }
      .hide {
        display: none;
      }
    </style>
    <div
        class="dropdown-content"
        slot="dropdown-content"
        id="suggestions"
        role="listbox">
      <ul>
        <template is="dom-repeat" items="[[suggestions]]">
          <li data-index$="[[index]]"
              data-value$="[[item.dataValue]]"
              tabindex="-1"
              aria-label$="[[item.name]]"
              class="autocompleteOption"
              role="option"
              on-tap="_handleTapItem">
            <span>[[item.text]]</span>
            <span class$="label [[_computeLabelClass(item)]]">[[item.label]]</span>
          </li>
        </template>
      </ul>
    </div>
    <gr-cursor-manager
        id="cursor"
        index="{{index}}"
        cursor-target-class="selected"
        scroll-behavior="never"
        focus-on-move
        stops="[[_suggestionEls]]"></gr-cursor-manager>
  </template>
  <script src="gr-autocomplete-dropdown.js"></script>
</dom-module>