Add aria menu hook and use in sidebar

assets/js/app.js

@@ -12,6 +12,57 @@ let execJS = (selector, attr) => {
 
 let Hooks = {}
 
+Hooks.Menu = {
+  getAttr(name){
+    let val = this.el.getAttribute(name)
+    if(val === null){ throw(new Error(`no ${name} attribute configured for menu`)) }
+    return val
+  },
+  reset(){
+    this.activeClass = this.getAttr("data-active-class")
+    this.deactivate(this.menuItems())
+    this.activeItem = null
+  },
+  mounted(){
+    this.menuItemsContainer = document.querySelector(`[aria-labelledby="${this.el.id}"]`)
+    this.reset()
+    this.el.addEventListener("click", e => {
+      if(e.currentTarget.isSameNode(this.el)){
+        this.el.focus()
+        this.activate(0)
+      }
+    })
+    this.el.addEventListener("keydown", e => {
+      if(e.key === "Escape"){
+        document.body.click()
+        this.reset()
+      } else if(e.key === "Enter" && !this.activeItem){
+        this.activate(0)
+      } else if(e.key === "Enter"){
+        this.activeItem.click()
+      }
+      if(e.key === "ArrowDown"){
+        e.preventDefault()
+        let menuItems = this.menuItems()
+        this.deactivate(menuItems)
+        this.activate(menuItems.indexOf(this.activeItem) + 1, menuItems.length - 1)
+      } else if(e.key === "ArrowUp"){
+        e.preventDefault()
+        let menuItems = this.menuItems()
+        this.deactivate(menuItems)
+        this.activate(menuItems.indexOf(this.activeItem) - 1, 0)
+      }
+    })
+  },
+  activate(index, fallbackIndex){
+    let menuItems = this.menuItems()
+    this.activeItem = menuItems[index] || menuItems[fallbackIndex]
+    this.activeItem.classList.add(this.activeClass)
+  },
+  deactivate(items){ items.forEach(item => item.classList.remove(this.activeClass)) },
+  menuItems(){ return Array.from(this.menuItemsContainer.querySelectorAll("[role=menuitem]")) }
+}
+
 Hooks.Flash = {
 	mounted(){
     let hide = () => this.el.click()

lib/live_beats_web/live/live_helpers.ex

@@ -173,6 +173,7 @@ defmodule LiveBeatsWeb.LiveHelpers do
         {"transition ease-out duration-120", "transform opacity-0 scale-95",
          "transform opacity-100 scale-100"}
     )
+    |> JS.set_attribute({"aria-expanded", "true"}, to: to)
   end
 
   def hide_dropdown(to) do
@@ -182,6 +183,7 @@ defmodule LiveBeatsWeb.LiveHelpers do
         {"transition ease-in duration-120", "transform opacity-100 scale-100",
          "transform opacity-0 scale-95"}
     )
+    |> JS.remove_attribute("aria-expanded", to: to)
   end
 
   def show_modal(js \\ %JS{}, id) when is_binary(id) do

lib/live_beats_web/views/layout_view.ex

@@ -68,7 +68,7 @@ defmodule LiveBeatsWeb.LayoutView do
     <!-- User account dropdown -->
     <div class="px-3 mt-6 relative inline-block text-left">
       <div>
-        <button type="button"
+        <button id={"#{@id}-menu"} type="button" phx-hook="Menu" data-active-class="bg-gray-100"
           class="group w-full bg-gray-100 rounded-md px-3.5 py-2 text-sm text-left font-medium text-gray-700 hover:bg-gray-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-100 focus:ring-purple-500"
           phx-click={show_dropdown("##{@id}-dropdown")}>
           <span class="flex w-full justify-between items-center">
@@ -91,13 +91,22 @@ defmodule LiveBeatsWeb.LayoutView do
           </span>
         </button>
       </div>
-      <div id={"#{@id}-dropdown"} phx-click-away={hide_dropdown("##{@id}-dropdown")} class="hidden z-10 mx-3 origin-top absolute right-0 left-0 mt-1 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 divide-y divide-gray-200" role="menu" aria-expanded="true">
+      <div
+        id={"#{@id}-dropdown"}
+        phx-click-away={hide_dropdown("##{@id}-dropdown")}
+        class="hidden z-10 mx-3 origin-top absolute right-0 left-0 mt-1 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 divide-y divide-gray-200"
+        role="menu"
+        aria-labelledby={"#{@id}-menu"}
+        phx-update="ignore"
+      >
         <div class="py-1" role="none">
           <.link
+            role="menuitem"
             redirect_to={profile_path(@current_user)}
             class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100"
           >View Profile</.link>
           <.link
+            role="menuitem"
             redirect_to={Routes.settings_path(LiveBeatsWeb.Endpoint, :edit)}
             class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" role="menuitem"
           >Settings</.link>
@@ -105,6 +114,7 @@ defmodule LiveBeatsWeb.LayoutView do
 
         <div class="py-1" role="none">
           <.link
+            role="menuitem"
             href={Routes.o_auth_callback_path(LiveBeatsWeb.Endpoint, :sign_out)}
             method={:delete}
             role="menuitem"

mix.lock

@@ -25,7 +25,7 @@
   "phoenix_html": {:hex, :phoenix_html, "3.1.0", "0b499df05aad27160d697a9362f0e89fa0e24d3c7a9065c2bd9d38b4d1416c09", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "0c0a98a2cefa63433657983a2a594c7dee5927e4391e0f1bfd3a151d1def33fc"},
   "phoenix_live_dashboard": {:hex, :phoenix_live_dashboard, "0.5.0", "3282d8646e1bfc1ef1218f508d9fcefd48cf47f9081b7667bd9b281b688a49cf", [:mix], [{:ecto, "~> 3.6.2 or ~> 3.7", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_psql_extras, "~> 0.6", [hex: :ecto_psql_extras, repo: "hexpm", optional: true]}, {:phoenix_live_view, "~> 0.16.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6.0", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "609740be43de94ae0abd2c4300ff0356a6e8a9487bf340e69967643a59fa7ec8"},
   "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.3.3", "3a53772a6118d5679bf50fc1670505a290e32a1d195df9e069d8c53ab040c054", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.4", [hex: :phoenix, repo: "hexpm", optional: false]}], "hexpm", "766796676e5f558dbae5d1bdb066849673e956005e3730dfd5affd7a6da4abac"},
-  "phoenix_live_view": {:git, "https://github.com/phoenixframework/phoenix_live_view.git", "a22cf65f39061195e1706b3c5b01d3a4bae70e3a", []},
+  "phoenix_live_view": {:git, "https://github.com/phoenixframework/phoenix_live_view.git", "1480b49e52e973f551c88bede2f802e5f5d8c298", []},
   "phoenix_pubsub": {:hex, :phoenix_pubsub, "2.0.0", "a1ae76717bb168cdeb10ec9d92d1480fec99e3080f011402c0a2d68d47395ffb", [:mix], [], "hexpm", "c52d948c4f261577b9c6fa804be91884b381a7f8f18450c5045975435350f771"},
   "phoenix_view": {:hex, :phoenix_view, "1.0.0", "fea71ecaaed71178b26dd65c401607de5ec22e2e9ef141389c721b3f3d4d8011", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "82be3e2516f5633220246e2e58181282c71640dab7afc04f70ad94253025db0c"},
   "plug": {:hex, :plug, "1.12.1", "645678c800601d8d9f27ad1aebba1fdb9ce5b2623ddb961a074da0b96c35187d", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d57e799a777bc20494b784966dc5fbda91eb4a09f571f76545b72a634ce0d30b"},