Handle noscript for the new species face picker

We mark the options as `inert` and `aria-hidden` while the JS is still
loading—and if the `noscript` tag tells us it's never coming, it covers
up the picker with a brief explainer!

app/assets/javascripts/items/show.js

@@ -0,0 +1,21 @@
+// When the species *face* picker changes, update and submit the main picker form.
+document.addEventListener("click", (e) => {
+    if (!e.target.matches(".species-face-picker input[type=radio]")) return;
+
+    try {
+        const mainPicker = document.querySelector("#item-preview .species-color-picker");
+        const mainSpeciesField =
+            mainPicker.querySelector("[name='preview[species_id]']");
+        mainSpeciesField.value = e.target.value;
+        mainPicker.requestSubmit(); // `submit` doesn't get captured by Turbo!
+    } catch (error) {
+        e.preventDefault();
+        console.error("Couldn't update species picker: ", error);
+    }
+});
+
+// Now that the face picker is ready to go, mark it as usable.
+for (const options of document.querySelectorAll(".species-face-picker-options")) {
+    options.removeAttribute("inert");
+    options.removeAttribute("aria-hidden");
+}

app/assets/stylesheets/items/_show.sass

@@ -161,6 +161,34 @@ body.items-show
         border-color: $error-border-color
         color: $error-color
 
+  .species-face-picker
+    position: relative
+
+    input[type=radio]
+      position: absolute
+      left: -10000px
+      top: auto
+      width: 1px
+      height: 1px
+      overflow: hidden
+
+      &:not(:checked) + img
+        opacity: .5
+
+    noscript
+      position: absolute
+      inset: 0
+      background: rgba(white, .75)
+      z-index: 1
+
+      display: flex
+      align-items: center
+      justify-content: center
+      text-align: center
+
+    &:has(.species-face-picker-options[inert])
+      cursor: wait
+
   .item-zones-info
     margin-top: .5em
 

app/controllers/items_controller.rb

@@ -93,6 +93,9 @@ class ItemsController < ApplicationController
         @all_appearances = @item.appearances
         @appearances_by_occupied_zone = @item.appearances_by_occupied_zone.
           sort_by { |z, a| z.label }
+
+        @preview_pet_type_options = PetType.where(color: @preview_outfit.color).
+          joins(:species).merge(Species.alphabetical)
       end
 
       format.gif do

app/views/items/show.html.haml

@@ -33,6 +33,20 @@
         "id", "human_name", @selected_preview_pet_type.species_id)
     = submit_tag "Go", name: nil
 
+  %form.species-face-picker
+    %noscript
+      This fancy species picker requires Javascript, but you can still use the
+      dropdowns instead!
+    .species-face-picker-options{
+      "inert": true, # waits for JS to remove
+      "aria-hidden": true, # waits for JS to remove
+    }
+      - @preview_pet_type_options.each do |pet_type|
+        %label
+          = radio_button_tag "species_face_id", pet_type.species_id,
+            checked: pet_type == @preview_outfit.pet_type
+          = pet_type_image pet_type, :happy, :face
+
   .item-zones-info
     %section
       %h3 Occupies
@@ -72,3 +86,4 @@
 - content_for :javascripts do
   = javascript_include_tag "lib/idiomorph", async: true
   = javascript_include_tag "outfit-viewer", async: true
+  = javascript_include_tag "items/show", async: true