ui/webui/resources/cr_elements/cr_drawer/cr_drawer.html

<link rel="import" href="../../html/polymer.html">

<link rel="import" href="../../html/assert.html">
<link rel="import" href="../../html/util.html">
<link rel="import" href="../shared_vars_css.html">

<dom-module id="cr-drawer">
  <template>
    <style>
      :host dialog {
        --drawer-width: 256px;
        --transition-timing: 200ms ease;
        background-color: #fff;
        border: none;
        bottom: 0;
        left: calc(-1 * var(--drawer-width));
        margin: 0;
        overflow: hidden;
        padding: 0;
        position: absolute;
        top: 0;
        transition: left var(--transition-timing);
        width: var(--drawer-width);
      }

      :host-context([dark]) dialog {
        background: var(--google-grey-900)
            linear-gradient(rgba(255, 255, 255, .04), rgba(255, 255, 255, .04));
      }

      :host dialog,
      #container {
        height: 100%;
        word-break: break-word;
      }

      :host([show_]) dialog {
        left: 0;
      }

      :host([align=rtl]) dialog {
        left: auto;
        right: calc(-1 * var(--drawer-width));
        transition: right var(--transition-timing);
      }

      :host([show_][align=rtl]) dialog {
        right: 0;
      }

      :host dialog::backdrop {
        background: rgba(0, 0, 0, 0.5);
        bottom: 0;
        left: 0;
        opacity: 0;
        position: absolute;
        right: 0;
        top: 0;
        transition: opacity var(--transition-timing);
      }

      :host([show_]) dialog::backdrop {
        opacity: 1;
      }

      .drawer-header {
        align-items: center;
        border-bottom: var(--cr-separator-line);
        color: var(--cr-drawer-heading-color);
        display: flex;
        font-size: 123.08%;  /* go to 16px from 13px */
        min-height: 56px;
        outline: none;
        padding-inline-start: 24px;
      }

      :host-context([dark]) .drawer-header {
        --cr-separator-color: rgba(255, 255, 255, .1);
      }

      :host ::slotted(.drawer-content) {
        height: calc(100% - 56px);
        overflow: auto;
      }
    </style>
    <dialog id="dialog" on-cancel="onDialogCancel_" on-tap="onDialogTap_"
        on-close="onDialogClose_">
      <div id="container" on-tap="onContainerTap_">
        <div class="drawer-header" tabindex="-1">[[heading]]</div>
        <slot></slot>
      </div>
    </dialog>
  </template>
</dom-module>
<script src="cr_drawer.js"></script>