Select Menu

<!-- Select Menu -->
<!-- An Alpine.js and Tailwind CSS component by https://pinemix.com -->
<!-- Alpine.js focus plugin is required, for more info http://pinemix.com/docs/getting-started -->
<div
  class="flex flex-col items-center justify-center gap-5 rounded-lg border-2 border-dashed border-zinc-200/75 bg-zinc-50 px-4 pt-8 pb-72 dark:border-zinc-700 dark:bg-zinc-950/25"
>
  <div
    x-data="{
    // Customize Select Menu
    open: false,
    selectedId: 0,
    label: 'Customer',
    placeholderText: 'Please select..',
    closeOnSelection: true,
    size: 'md', // 'xs', 'sm', 'md', 'lg', 'full'

    // Available Select Menu Options
    options: [
      { id: 1, label: 'John Doe', value: 'john-doe' },
      { id: 2, label: 'Jane Smith', value: 'jane-smith' },
      { id: 3, label: 'Mike Johnson', value: 'mike-johnson' },
      { id: 4, label: 'Emily Davis', value: 'emily-davis' },
      { id: 5, label: 'Chris Brown', value: 'chris-brown' },
      { id: 6, label: 'Sarah Wilson', value: 'sarah-wilson' },
      { id: 7, label: 'David Jones', value: 'david-jones' },
      { id: 8, label: 'Laura Garcia', value: 'laura-garcia' },
      { id: 9, label: 'Tom Martinez', value: 'tom-martinez' },
      { id: 10, label: 'Linda Hernandez', value: 'linda-hernandez' }
    ],
    
    // Helper variables
    selectedOption: null,
    keyboardTimeout: false,

    // Initialization
    init() {
      this.setSelected(this.selectedId, false);
      
      if (this.open) {
        this.openMenu();
      }
    },

    // Open Select Menu
    openMenu() {
      this.open = true;

      $nextTick(() => {
        let selectedEl = document.querySelector('#pm-select-menu-list li[data-selected]');
        
        if (selectedEl) {
          $focus.focus(selectedEl);
        } else {
          $focus.within($refs.selectMenu).first();
        }
      });
    },

    // Close Select Menu
    closeMenu() {
      this.open = false;

      $nextTick(() => { $focus.focus($refs.selectMenuButton); });
    },

    // Setter
    setSelected(id, closeMenu = this.closeOnSelection) {
      this.selectedId = id;
      this.selectedOption = this.getSelected();
      
      if (closeMenu) {
        this.closeMenu();
      }
    },

    // Getter
    getSelected() {
      return this.selectedId !== 0 ? this.options.find(options => options.id === this.selectedId) || null : null;
    },

    // Check if the given id is the selected one
    isSelected(id) {
      return id === this.selectedOption?.id || false;
    },
    
    // Keyboard letter navigation
    keyboardNavigation(e) {
      clearTimeout(this.keyboardTimeout);

      this.keyboardTimeout = setTimeout(() => { 
        if (e.key.toUpperCase().match(/^[A-Z]$/)) {
          let elements = document.querySelectorAll('#pm-select-menu-list li[data-label^=' + e.key.toUpperCase() + ']');
          let focusedEl, focusedIndex;

          // Find if there is already a focused item
          elements.forEach((el, index) => {
            if (document.activeElement === el) {
              focusedEl = el;
              focusedIndex = index;
            }
          });

          // Focus the correct element
          if (focusedEl) {
            if ((elements.length - 1) === focusedIndex) {
              $focus.focus(elements[0]);  
            } else {
              $focus.focus(elements[focusedIndex + 1]);
            }
          } else {
            $focus.focus(elements[0]);
          }
        }
      }, 50);
    }
  }"
    class="relative"
    x-bind:class="{
    'w-48': size === 'xs',
    'w-56': size === 'sm',
    'w-64': size === 'md',
    'w-72': size === 'lg',
    'w-full': size === 'full'
  }"
  >
    <!-- Invisible native select -->
    <!-- Kept in synced with the custom select menu for backwards form submission compatibility, feel free to remove it if you won't use it -->
    <select
      id="pm-select-menu"
      name="pm-select-menu"
      class="pointer-events-none absolute start-0 top-0 appearance-none opacity-0"
      tabindex="-1"
      aria-hidden="true"
    >
      <option
        x-bind:selected="selectedOption === null ? 'selected' : null"
      ></option>
      <template x-for="option in options" :key="option.id">
        <option
          x-text="option.label"
          x-bind:selected="isSelected(option.id) ? 'selected' : null"
          :value="option.value"
        ></option>
      </template>
    </select>
    <!-- END Invisible native select -->

    <!-- Select Menu Toggle -->
    <div class="space-y-1">
      <label
        x-on:click="$focus.focus($refs.selectMenuButton)"
        x-text="label"
        class="inline-block text-sm font-medium"
      ></label>
      <button
        x-on:click="openMenu()"
        x-on:keydown.down.prevent.stop="openMenu()"
        x-on:keydown.up.prevent.stop="openMenu()"
        x-bind:aria-expanded="open"
        id="pm-select-menu-button"
        type="button"
        class="group flex w-full items-center justify-between gap-2 rounded-lg border border-zinc-200 bg-white px-3 py-2 text-start text-sm/6 focus:border-zinc-500 focus:ring-3 focus:ring-zinc-500/50 focus:outline-hidden dark:border-zinc-600 dark:bg-transparent dark:focus:border-zinc-500"
        x-ref="selectMenuButton"
        aria-haspopup="listbox"
        aria-controls="pm-select-menu-list"
      >
        <span
          x-text="selectedOption ? selectedOption.label : placeholderText"
          x-bind:class="{
          'text-zinc-500 dark:text-zinc-400': !selectedOption
        }"
          class="grow truncate"
        ></span>
        <svg
          class="hi-mini hi-chevron-up-down inline-block size-5 flex-none opacity-40 transition group-hover:opacity-60 group-active:scale-90"
          xmlns="http://www.w3.org/2000/svg"
          viewBox="0 0 20 20"
          fill="currentColor"
          aria-hidden="true"
        >
          <path
            fill-rule="evenodd"
            d="M10 3a.75.75 0 01.55.24l3.25 3.5a.75.75 0 11-1.1 1.02L10 4.852 7.3 7.76a.75.75 0 01-1.1-1.02l3.25-3.5A.75.75 0 0110 3zm-3.76 9.2a.75.75 0 011.06.04l2.7 2.908 2.7-2.908a.75.75 0 111.1 1.02l-3.25 3.5a.75.75 0 01-1.1 0l-3.25-3.5a.75.75 0 01.04-1.06z"
            clip-rule="evenodd"
          />
        </svg>
      </button>
    </div>
    <!-- END Select Menu Toggle -->

    <!-- Select Menu Container -->
    <ul
      x-cloak
      x-ref="selectMenu"
      x-show="open"
      x-trap="open"
      x-transition:enter="transition ease-out duration-100"
      x-transition:enter-start="opacity-0 -translate-y-3"
      x-transition:enter-end="opacity-100 translate-y-0"
      x-transition:leave="transition ease-in duration-75"
      x-transition:leave-start="opacity-100 translate-y-0"
      x-transition:leave-end="opacity-0 translate-y-10"
      x-on:click.outside="closeMenu()"
      x-on:keydown="keyboardNavigation($event)"
      x-on:keydown.esc.prevent.stop="closeMenu()"
      x-on:keydown.up.prevent.stop="$focus.previous()"
      x-on:keydown.down.prevent.stop="$focus.next()"
      x-on:keydown.home.prevent.stop="$focus.first()"
      x-on:keydown.end.prevent.stop="$focus.last()"
      x-on:keydown.page-up.prevent.stop="$focus.first()"
      x-on:keydown.page-down.prevent.stop="$focus.last()"
      id="pm-select-menu-list"
      class="absolute inset-x-0 z-10 mt-2 max-h-60 origin-top overflow-y-auto rounded-lg bg-white py-2.5 ring-1 shadow-xl ring-black/5 focus:outline-hidden dark:bg-zinc-800 dark:shadow-zinc-900 dark:ring-zinc-700"
      aria-labelledby="pm-select-menu-button"
      aria-orientation="vertical"
      role="listbox"
      tabindex="0"
    >
      <template x-for="option in options" :key="option.id">
        <li
          x-on:click="setSelected(option.id)"
          x-on:keydown.enter.prevent.stop="setSelected(option.id)"
          x-on:keydown.space.prevent.stop="setSelected(option.id)"
          x-bind:class="{
          'font-semibold text-zinc-950 hover:bg-zinc-50 focus:bg-zinc-50 dark:font-medium dark:text-white dark:hover:bg-zinc-700/75 dark:focus:bg-zinc-700/75': isSelected(option.id),
          'text-zinc-600 hover:text-zinc-950 hover:bg-zinc-50 focus:text-zinc-950 focus:bg-zinc-50 active:bg-zinc-100 dark:text-zinc-300 dark:hover:text-white dark:hover:bg-zinc-700/50 dark:focus:text-white dark:focus:bg-zinc-700/50 dark:active:bg-zinc-700': option.id !== selectedId,
        }"
          x-bind:data-selected="isSelected(option.id)"
          x-bind:data-label="option.label"
          x-bind:data-value="option.value"
          x-bind:aria-selected="isSelected(option.id)"
          x-bind:title="option.label"
          class="group flex cursor-pointer items-center justify-between gap-2 px-3 text-sm focus:outline-hidden"
          role="option"
          tabindex="-1"
        >
          <div x-text="option.label" class="grow truncate py-2"></div>
          <div
            class="pointer-events-none size-5 flex-none text-zinc-600 dark:text-zinc-400"
            x-bind:class="{
            'invisible': !isSelected(option.id)
          }"
            aria-hidden="true"
          >
            <svg
              x-cloak
              x-show="isSelected(option.id)"
              class="hi-mini hi-check-circle inline-block size-5"
              xmlns="http://www.w3.org/2000/svg"
              viewBox="0 0 20 20"
              fill="currentColor"
              aria-hidden="true"
            >
              <path
                fill-rule="evenodd"
                d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.857-9.809a.75.75 0 00-1.214-.882l-3.483 4.79-1.88-1.88a.75.75 0 10-1.06 1.061l2.5 2.5a.75.75 0 001.137-.089l4-5.5z"
                clip-rule="evenodd"
              />
            </svg>
          </div>
        </li>
      </template>
    </ul>
    <!-- END Select Menu Container -->
  </div>
</div>
<!-- END Select Menu -->