Add slide reordering with drag-and-drop

assets/js/app.js

@@ -407,6 +407,57 @@ Hooks.Manager = {
     this.manager.update();
   },
 };
+Hooks.SlideSortable = {
+  mounted() {
+    this.from = null;
+
+    this.el.addEventListener("dragstart", (e) => {
+      const item = e.target.closest("[data-index]");
+      if (!item) return;
+      this.from = parseInt(item.dataset.index);
+      e.dataTransfer.effectAllowed = "move";
+      e.dataTransfer.setData("text/plain", item.dataset.index);
+      setTimeout(() => item.classList.add("opacity-40"), 0);
+    });
+
+    this.el.addEventListener("dragover", (e) => {
+      if (this.from === null) return;
+      e.preventDefault();
+      e.dataTransfer.dropEffect = "move";
+      const item = e.target.closest("[data-index]");
+      this.clearDropTarget();
+      if (item && parseInt(item.dataset.index) !== this.from) {
+        item.classList.add("ring-2", "ring-primary-500");
+      }
+    });
+
+    this.el.addEventListener("drop", (e) => {
+      e.preventDefault();
+      const item = e.target.closest("[data-index]");
+      if (item && this.from !== null) {
+        const to = parseInt(item.dataset.index);
+        if (to !== this.from) {
+          this.pushEvent("reorder-slides", { from: this.from, to: to });
+        }
+      }
+      this.reset();
+    });
+
+    this.el.addEventListener("dragend", () => this.reset());
+  },
+  clearDropTarget() {
+    this.el
+      .querySelectorAll("[data-index]")
+      .forEach((n) => n.classList.remove("ring-2", "ring-primary-500"));
+  },
+  reset() {
+    this.from = null;
+    this.clearDropTarget();
+    this.el
+      .querySelectorAll("[data-index]")
+      .forEach((n) => n.classList.remove("opacity-40"));
+  },
+};
 Hooks.OpenPresenter = {
   open(e) {
     e.preventDefault();

lib/claper/presentations.ex

@@ -57,12 +57,12 @@ defmodule Claper.Presentations do
         []
 
       presentation ->
-        get_slide_urls(hash, presentation.length)
+        get_slide_urls(presentation)
     end
   end
 
   def get_slide_urls(%PresentationFile{} = presentation) do
-    get_slide_urls(presentation.hash, presentation.length)
+    get_slide_urls(presentation.hash, presentation.length, presentation.slide_order)
   end
 
   @doc """
@@ -94,25 +94,25 @@ defmodule Claper.Presentations do
 
   @doc """
   Returns a list of JPG slide URLs for a given presentation `hash` and
-  `length`. See also `get_slide_urls/1`.
+  `length`, optionally reordered by `slide_order`. See also `get_slide_urls/1`.
   """
-  def get_slide_urls(hash, length)
+  def get_slide_urls(hash, length, slide_order \\ nil)
 
-  def get_slide_urls(nil, _), do: []
+  def get_slide_urls(nil, _, _), do: []
 
-  def get_slide_urls(hash, length) when is_binary(hash) and is_integer(length) do
+  def get_slide_urls(hash, length, slide_order) when is_binary(hash) and is_integer(length) do
     config = Application.get_env(:claper, :presentations)
 
     case Keyword.fetch!(config, :storage) do
       "local" ->
-        for index <- 1..length do
+        for index <- slide_indexes(length, slide_order) do
           "/uploads/#{hash}/#{index}.jpg"
         end
 
       "s3" ->
         base_url = Keyword.fetch!(config, :s3_public_url)
 
-        for index <- 1..length do
+        for index <- slide_indexes(length, slide_order) do
           base_url <> "/presentations/#{hash}/#{index}.jpg"
         end
 
@@ -131,23 +131,24 @@ defmodule Claper.Presentations do
   def get_slide_thumbnail_urls(%PresentationFile{length: nil}), do: []
   def get_slide_thumbnail_urls(%PresentationFile{length: 0}), do: []
 
-  def get_slide_thumbnail_urls(%PresentationFile{hash: hash, length: length}) do
-    get_slide_thumbnail_urls(hash, length)
+  def get_slide_thumbnail_urls(%PresentationFile{} = presentation) do
+    get_slide_thumbnail_urls(presentation.hash, presentation.length, presentation.slide_order)
   end
 
-  def get_slide_thumbnail_urls(hash, length) when is_binary(hash) and is_integer(length) do
+  def get_slide_thumbnail_urls(hash, length, slide_order \\ nil)
+      when is_binary(hash) and is_integer(length) do
     config = Application.get_env(:claper, :presentations)
 
     case Keyword.fetch!(config, :storage) do
       "local" ->
-        for index <- 1..length do
+        for index <- slide_indexes(length, slide_order) do
           "/uploads/#{hash}/thumbs/#{index}.jpg"
         end
 
       "s3" ->
         base_url = Keyword.fetch!(config, :s3_public_url)
 
-        for index <- 1..length do
+        for index <- slide_indexes(length, slide_order) do
           base_url <> "/presentations/#{hash}/thumbs/#{index}.jpg"
         end
 
@@ -156,6 +157,15 @@ defmodule Claper.Presentations do
     end
   end
 
+  # Display order as a list of 1-based original slide file indexes. A stored
+  # `slide_order` is only honored when it matches the slide count, so a stale
+  # order (e.g. from before a re-upload) falls back to the natural order.
+  defp slide_indexes(count, slide_order)
+       when is_list(slide_order) and length(slide_order) == count,
+       do: slide_order
+
+  defp slide_indexes(count, _slide_order), do: Enum.to_list(1..count//1)
+
   @doc """
   Returns true when a presentation has slides but no generated thumbnails.
   """
@@ -248,6 +258,111 @@ defmodule Claper.Presentations do
     |> broadcast(:state_updated)
   end
 
+  @interaction_schemas [
+    Claper.Polls.Poll,
+    Claper.Forms.Form,
+    Claper.Embeds.Embed,
+    Claper.Quizzes.Quiz
+  ]
+
+  @doc """
+  Moves the slide displayed at position `from` to position `to` (both 0-based
+  display positions).
+
+  Slide files are never renamed (a hash directory can be shared by duplicated
+  events); instead the per-presentation `slide_order` permutation is updated.
+  Interactions (polls, forms, embeds, quizzes) and the current presentation
+  state position are remapped so they stay attached to their slide content.
+
+  Returns `{:ok, presentation_file, presentation_state}` or
+  `{:error, :invalid_position}`.
+  """
+  def reorder_slides(%PresentationFile{} = presentation_file, from, to)
+      when is_integer(from) and is_integer(to) do
+    count = presentation_file.length || 0
+
+    if from == to or from < 0 or to < 0 or from >= count or to >= count do
+      {:error, :invalid_position}
+    else
+      do_reorder_slides(presentation_file, from, to)
+    end
+  end
+
+  defp do_reorder_slides(presentation_file, from, to) do
+    {moved, rest} =
+      presentation_file.length
+      |> slide_indexes(presentation_file.slide_order)
+      |> List.pop_at(from)
+
+    new_order = List.insert_at(rest, to, moved)
+
+    Repo.transaction(fn ->
+      presentation_file =
+        presentation_file
+        |> PresentationFile.changeset(%{slide_order: new_order})
+        |> Repo.update!()
+
+      Enum.each(@interaction_schemas, fn schema ->
+        remap_interaction_positions(schema, presentation_file.id, from, to)
+      end)
+
+      state = Repo.get_by(PresentationState, presentation_file_id: presentation_file.id)
+      new_position = state && remap_position(state.position, from, to)
+      position_changed = state && new_position != state.position
+
+      state =
+        if position_changed do
+          state
+          |> PresentationState.changeset(%{position: new_position})
+          |> Repo.update!()
+        else
+          state
+        end
+
+      {presentation_file, state, position_changed}
+    end)
+    |> case do
+      {:ok, {presentation_file, state, position_changed}} ->
+        if position_changed, do: broadcast({:ok, state}, :state_updated)
+        {:ok, presentation_file, state}
+
+      {:error, reason} ->
+        {:error, reason}
+    end
+  end
+
+  # Shifts the `position` column of every interaction so it follows its slide
+  # content. Interactions on the moved slide are parked at -1 first to avoid
+  # colliding with the shifted range.
+  defp remap_interaction_positions(schema, presentation_file_id, from, to) do
+    base = from(i in schema, where: i.presentation_file_id == ^presentation_file_id)
+
+    base |> where([i], i.position == ^from) |> Repo.update_all(set: [position: -1])
+
+    if from < to do
+      base
+      |> where([i], i.position > ^from and i.position <= ^to)
+      |> Repo.update_all(inc: [position: -1])
+    else
+      base
+      |> where([i], i.position >= ^to and i.position < ^from)
+      |> Repo.update_all(inc: [position: 1])
+    end
+
+    base |> where([i], i.position == -1) |> Repo.update_all(set: [position: to])
+  end
+
+  defp remap_position(nil, _from, _to), do: nil
+  defp remap_position(position, from, to) when position == from, do: to
+
+  defp remap_position(position, from, to) when from < to and position > from and position <= to,
+    do: position - 1
+
+  defp remap_position(position, from, to) when from > to and position >= to and position < from,
+    do: position + 1
+
+  defp remap_position(position, _from, _to), do: position
+
   defp broadcast({:error, _reason} = error, _state), do: error
 
   defp broadcast({:ok, state}, event) do

lib/claper/presentations/presentation_file.ex

@@ -7,6 +7,7 @@ defmodule Claper.Presentations.PresentationFile do
           hash: String.t() | nil,
           length: integer() | nil,
           status: String.t() | nil,
+          slide_order: [integer()] | nil,
           event_id: integer() | nil,
           polls: [Claper.Polls.Poll.t()] | nil,
           forms: [Claper.Forms.Form.t()] | nil,
@@ -21,6 +22,7 @@ defmodule Claper.Presentations.PresentationFile do
     field :hash, :string
     field :length, :integer
     field :status, :string
+    field :slide_order, {:array, :integer}
 
     belongs_to :event, Claper.Events.Event
     has_many :polls, Claper.Polls.Poll
@@ -37,7 +39,7 @@ defmodule Claper.Presentations.PresentationFile do
   @doc false
   def changeset(presentation_file, attrs) do
     presentation_file
-    |> cast(attrs, [:length, :status, :hash, :event_id])
+    |> cast(attrs, [:length, :status, :hash, :event_id, :slide_order])
     |> cast_assoc(:presentation_state)
   end
 end

lib/claper/tasks/converter.ex

@@ -256,7 +256,8 @@ defmodule Claper.Tasks.Converter do
            Claper.Presentations.update_presentation_file(presentation, %{
              "hash" => "#{hash}",
              "length" => length,
-             "status" => "done"
+             "status" => "done",
+             "slide_order" => nil
            }) do
       if get_presentation_storage() != "local", do: File.rm_rf!(path)
 

lib/claper_web/live/event_live/manage.ex

@@ -427,6 +427,32 @@ defmodule ClaperWeb.EventLive.Manage do
      |> interactions_at_position(page)}
   end
 
+  @impl true
+  def handle_event(
+        "reorder-slides",
+        %{"from" => from, "to" => to},
+        %{assigns: %{event: event, state: state}} = socket
+      )
+      when is_integer(from) and is_integer(to) and from != to do
+    case Presentations.reorder_slides(event.presentation_file, from, to) do
+      {:ok, _presentation_file, new_state} ->
+        if new_state && new_state.position != state.position do
+          Phoenix.PubSub.broadcast(
+            Claper.PubSub,
+            "event:#{event.uuid}",
+            {:page_changed, new_state.position}
+          )
+        end
+
+        socket = refresh_event(socket)
+
+        {:noreply, socket |> interactions_at_position(socket.assigns.state.position)}
+
+      {:error, _reason} ->
+        {:noreply, socket |> put_flash(:error, gettext("Could not reorder slides"))}
+    end
+  end
+
   @impl true
   def handle_event(
         "regenerate-thumbnails",

lib/claper_web/live/event_live/manage_slide_sidebar_component.ex

@@ -40,13 +40,15 @@ defmodule ClaperWeb.EventLive.ManageSlideSidebarComponent do
 
         <span class="font-bold text-sm text-[#140553]">{gettext("Content")}</span>
       </div>
-      <div class="flex-1 overflow-y-auto p-3 space-y-2">
+      <div id="slide-sortable" phx-hook="SlideSortable" class="flex-1 overflow-y-auto p-3 space-y-2">
         <button
           :for={{src, index} <- @thumbnail_urls |> Enum.with_index(0)}
           id={"slide-thumb-#{index}"}
+          draggable="true"
+          data-index={index}
           phx-click="current-page"
           phx-value-page={index}
-          class={"group flex items-start gap-x-1.5 w-full rounded-lg p-1 transition-all hover:bg-gray-200 #{if @current_position == index, do: "bg-primary-50"}"}
+          class={"group flex items-start gap-x-1.5 w-full rounded-lg p-1 transition-all cursor-grab active:cursor-grabbing hover:bg-gray-200 #{if @current_position == index, do: "bg-primary-50"}"}
         >
           <span class={"flex-shrink-0 w-5 text-base font-semibold #{if @current_position == index, do: "text-primary-600", else: "text-gray-500"}"}>
             {index + 1}
@@ -54,6 +56,7 @@ defmodule ClaperWeb.EventLive.ManageSlideSidebarComponent do
           <div class={"relative w-28 aspect-video rounded-md overflow-hidden border-2 transition-all #{if @current_position == index, do: "border-primary-500 shadow-md", else: "border-transparent opacity-60 group-hover:opacity-100"}"}>
             <img
               src={src}
+              draggable="false"
               loading="lazy"
               decoding="async"
               class="w-full h-full object-cover"

priv/gettext/de/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Einstellungen"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -691,7 +691,7 @@ msgstr "Formular"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Name"
@@ -1336,12 +1336,12 @@ msgstr "Laden Sie die Seite, auf die Sie zugreifen möchten, neu (senden Sie kei
 msgid "Try logging in again"
 msgstr "Versuchen Sie, sich erneut anzumelden"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Nein"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Ja"
@@ -2666,10 +2666,10 @@ msgstr "Ressourcen-ID"
 msgid "Resource Type"
 msgstr "Antworttyp"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Ressource nicht gefunden"
@@ -2907,7 +2907,7 @@ msgstr "Melden Sie sich an, um Ihre interaktiven Sitzungen zu starten oder zu ve
 msgid "Could not regenerate thumbnails"
 msgstr "Miniaturbilder konnten nicht neu erstellt werden"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "Miniaturbilderstellung konnte nicht gestartet werden"
@@ -2937,7 +2937,7 @@ msgstr "Miniaturbilder neu erstellen"
 msgid "Regenerating..."
 msgstr "Wird neu erstellt..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Miniaturbilderstellung gestartet"
@@ -3245,7 +3245,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3310,3 +3310,8 @@ msgstr "Unbegrenzt"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Bereitgestellt von"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/default.pot

@@ -21,7 +21,7 @@ msgstr ""
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -693,7 +693,7 @@ msgstr ""
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr ""
@@ -1338,12 +1338,12 @@ msgstr ""
 msgid "Try logging in again"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr ""
@@ -2668,10 +2668,10 @@ msgstr ""
 msgid "Resource Type"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr ""
@@ -2909,7 +2909,7 @@ msgstr ""
 msgid "Could not regenerate thumbnails"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr ""
@@ -2939,7 +2939,7 @@ msgstr ""
 msgid "Regenerating..."
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr ""
@@ -3247,7 +3247,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3312,3 +3312,8 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr ""
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/en/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr ""
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -691,7 +691,7 @@ msgstr ""
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr ""
@@ -1336,12 +1336,12 @@ msgstr ""
 msgid "Try logging in again"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr ""
@@ -2666,10 +2666,10 @@ msgstr ""
 msgid "Resource Type"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr ""
@@ -2907,7 +2907,7 @@ msgstr ""
 msgid "Could not regenerate thumbnails"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr ""
@@ -2937,7 +2937,7 @@ msgstr ""
 msgid "Regenerating..."
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr ""
@@ -3245,7 +3245,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3310,3 +3310,8 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr ""
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/es/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Configuración"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -691,7 +691,7 @@ msgstr "Formulario"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Nombre"
@@ -1336,12 +1336,12 @@ msgstr "Recargue la página a la que está intentando acceder (no vuelva a envia
 msgid "Try logging in again"
 msgstr "Intente iniciar sesión de nuevo"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "No"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Sí"
@@ -2666,10 +2666,10 @@ msgstr "ID del recurso"
 msgid "Resource Type"
 msgstr "Tipo de Respuesta"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Recurso no encontrado"
@@ -2907,7 +2907,7 @@ msgstr "Inicia sesión para lanzar o gestionar tus sesiones interactivas."
 msgid "Could not regenerate thumbnails"
 msgstr "No se pudieron regenerar las miniaturas"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "No se pudo iniciar la regeneración de miniaturas"
@@ -2937,7 +2937,7 @@ msgstr "Regenerar miniaturas"
 msgid "Regenerating..."
 msgstr "Regenerando..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Regeneración de miniaturas iniciada"
@@ -3245,7 +3245,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3310,3 +3310,8 @@ msgstr "Ilimitado"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Con tecnología de"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/fr/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Paramètres"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -695,7 +695,7 @@ msgstr "Formulaire"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Nom"
@@ -1340,12 +1340,12 @@ msgstr "Rechargez la page à laquelle vous essayez d'accéder (ne renvoyez pas l
 msgid "Try logging in again"
 msgstr "Essayez de vous reconnecter"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Non"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Oui"
@@ -2670,10 +2670,10 @@ msgstr "ID de la ressource"
 msgid "Resource Type"
 msgstr "Type de réponse"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Ressource introuvable"
@@ -2911,7 +2911,7 @@ msgstr "Connectez-vous pour lancer ou gérer vos sessions interactives."
 msgid "Could not regenerate thumbnails"
 msgstr "Impossible de régénérer les miniatures"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "Impossible de démarrer la régénération des miniatures"
@@ -2941,7 +2941,7 @@ msgstr "Régénérer les miniatures"
 msgid "Regenerating..."
 msgstr "Régénération en cours..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Régénération des miniatures lancée"
@@ -3249,7 +3249,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3314,3 +3314,8 @@ msgstr "Illimité"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Propulsé par"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/hu/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Beállítások"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -691,7 +691,7 @@ msgstr "Űrlap"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Név"
@@ -1336,12 +1336,12 @@ msgstr "Töltse újra az elérni kívánt oldalt, de ne küldje újra az adatoka
 msgid "Try logging in again"
 msgstr "Jelentkezzen be újra"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Nem"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Igen"
@@ -2666,10 +2666,10 @@ msgstr "Erőforrás-azonosító"
 msgid "Resource Type"
 msgstr "Válasz típus"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Az erőforrás nem található"
@@ -2907,7 +2907,7 @@ msgstr "Jelentkezzen be interaktív munkamenetei indításához vagy kezeléséh
 msgid "Could not regenerate thumbnails"
 msgstr "A miniatűrök nem hozhatók létre újra"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "A miniatűrök újragenerálása nem indítható el"
@@ -2937,7 +2937,7 @@ msgstr "Miniatűrök újragenerálása"
 msgid "Regenerating..."
 msgstr "Újragenerálás..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Miniatűrök újragenerálása elindult"
@@ -3245,7 +3245,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3310,3 +3310,8 @@ msgstr "Korlátlan"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Üzemelteti"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/it/LC_MESSAGES/default.po

@@ -20,7 +20,7 @@ msgstr "Impostazioni"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -692,7 +692,7 @@ msgstr "Modulo"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Nome"
@@ -1337,12 +1337,12 @@ msgstr "Ricarica la pagina che stai cercando di accedere (non reinviare i dati)"
 msgid "Try logging in again"
 msgstr "Prova ad accedere di nuovo"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "No"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Sì"
@@ -2667,10 +2667,10 @@ msgstr "ID risorsa"
 msgid "Resource Type"
 msgstr "Tipo di risposta"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Risorsa non trovata"
@@ -2908,7 +2908,7 @@ msgstr "Accedi per avviare o gestire le tue sessioni interattive."
 msgid "Could not regenerate thumbnails"
 msgstr "Impossibile rigenerare le miniature"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "Impossibile avviare la rigenerazione delle miniature"
@@ -2938,7 +2938,7 @@ msgstr "Rigenera miniature"
 msgid "Regenerating..."
 msgstr "Rigenerazione in corso..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Rigenerazione delle miniature avviata"
@@ -3246,7 +3246,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3311,3 +3311,8 @@ msgstr "Illimitato"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Funziona con"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/lv/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Iestatījumi"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -695,7 +695,7 @@ msgstr "Veidlapa"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Nosaukums"
@@ -1340,12 +1340,12 @@ msgstr "Atkārtoti ielādējiet lapu, kurai mēģināt piekļūt (neveiciet atk
 msgid "Try logging in again"
 msgstr "Mēģiniet vēlreiz pieteikties"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Nē"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Jā"
@@ -2670,10 +2670,10 @@ msgstr "Resursa ID"
 msgid "Resource Type"
 msgstr "Atbildes veids"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Resurss nav atrasts"
@@ -2911,7 +2911,7 @@ msgstr "Piesakieties, lai palaistu vai pārvaldītu savas interaktīvās sesijas
 msgid "Could not regenerate thumbnails"
 msgstr "Nevarēja atjaunot sīktēlus"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "Nevarēja sākt sīktēlu atjaunošanu"
@@ -2941,7 +2941,7 @@ msgstr "Atjaunot sīktēlus"
 msgid "Regenerating..."
 msgstr "Atjauno..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Sīktēlu atjaunošana sākta"
@@ -3249,7 +3249,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3314,3 +3314,8 @@ msgstr "Neierobežots"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Darbina"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/nl/LC_MESSAGES/default.po

@@ -19,7 +19,7 @@ msgstr "Instellingen"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -691,7 +691,7 @@ msgstr "Formulier"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Naam"
@@ -1336,12 +1336,12 @@ msgstr "Herlaad de pagina die u probeert te openen (dien geen gegevens opnieuw i
 msgid "Try logging in again"
 msgstr "Probeer opnieuw in te loggen"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Nee"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Ja"
@@ -2666,10 +2666,10 @@ msgstr "Resource-ID"
 msgid "Resource Type"
 msgstr "Reactietype"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr "Resource niet gevonden"
@@ -2907,7 +2907,7 @@ msgstr "Meld je aan om je interactieve sessies te starten of beheren."
 msgid "Could not regenerate thumbnails"
 msgstr "Miniaturen konden niet opnieuw worden gegenereerd"
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr "Het genereren van miniaturen kon niet worden gestart"
@@ -2937,7 +2937,7 @@ msgstr "Miniaturen opnieuw genereren"
 msgid "Regenerating..."
 msgstr "Opnieuw genereren..."
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr "Genereren van miniaturen gestart"
@@ -3245,7 +3245,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3310,3 +3310,8 @@ msgstr "Onbeperkt"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Mogelijk gemaakt door"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/gettext/sv/LC_MESSAGES/default.po

@@ -26,7 +26,7 @@ msgstr "Inställningar"
 #: lib/claper_web/live/admin_live/user_live.html.heex:41
 #: lib/claper_web/live/admin_live/user_live.html.heex:104
 #: lib/claper_web/live/admin_live/user_live/form_component.ex:18
-#: lib/claper_web/live/event_live/manage.ex:1092
+#: lib/claper_web/live/event_live/manage.ex:1118
 #: lib/claper_web/live/form_live/form_component.html.heex:32
 #: lib/claper_web/live/user_settings_live/show.html.heex:18
 #: lib/claper_web/templates/user_registration/new.html.heex:63
@@ -724,7 +724,7 @@ msgstr "Formulär"
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:74
 #: lib/claper_web/live/admin_live/oidc_provider_live.html.heex:234
 #: lib/claper_web/live/admin_live/oidc_provider_live/form_component.ex:24
-#: lib/claper_web/live/event_live/manage.ex:1091
+#: lib/claper_web/live/event_live/manage.ex:1117
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr "Namn"
@@ -1372,12 +1372,12 @@ msgstr "Ladda om sidan du försöker komma åt (skicka inte om data)"
 msgid "Try logging in again"
 msgstr "Försök logga in igen"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "No"
 msgstr "Nej"
 
-#: lib/claper_web/live/event_live/manage.ex:1064
+#: lib/claper_web/live/event_live/manage.ex:1090
 #, elixir-autogen, elixir-format
 msgid "Yes"
 msgstr "Ja"
@@ -2704,10 +2704,10 @@ msgstr "Resurs-ID"
 msgid "Resource Type"
 msgstr "Resurstyp"
 
-#: lib/claper_web/live/event_live/manage.ex:1072
-#: lib/claper_web/live/event_live/manage.ex:1115
-#: lib/claper_web/live/event_live/manage.ex:1131
-#: lib/claper_web/live/event_live/manage.ex:1173
+#: lib/claper_web/live/event_live/manage.ex:1098
+#: lib/claper_web/live/event_live/manage.ex:1141
+#: lib/claper_web/live/event_live/manage.ex:1157
+#: lib/claper_web/live/event_live/manage.ex:1199
 #, elixir-autogen, elixir-format
 msgid "Resource not found"
 msgstr ""
@@ -2945,7 +2945,7 @@ msgstr ""
 msgid "Could not regenerate thumbnails"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:461
+#: lib/claper_web/live/event_live/manage.ex:487
 #, elixir-autogen, elixir-format
 msgid "Could not start thumbnail regeneration"
 msgstr ""
@@ -2975,7 +2975,7 @@ msgstr ""
 msgid "Regenerating..."
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:458
+#: lib/claper_web/live/event_live/manage.ex:484
 #, elixir-autogen, elixir-format
 msgid "Thumbnail regeneration started"
 msgstr ""
@@ -3283,7 +3283,7 @@ msgstr ""
 msgid "Transcription deleted"
 msgstr ""
 
-#: lib/claper_web/live/event_live/manage.ex:826
+#: lib/claper_web/live/event_live/manage.ex:852
 #, elixir-autogen, elixir-format
 msgid "Transcription has been disabled by the administrator"
 msgstr ""
@@ -3348,3 +3348,8 @@ msgstr "Obegränsat"
 #, elixir-autogen, elixir-format
 msgid "Powered by"
 msgstr "Drivs av"
+
+#: lib/claper_web/live/event_live/manage.ex:452
+#, elixir-autogen, elixir-format
+msgid "Could not reorder slides"
+msgstr ""

priv/repo/migrations/20260612000000_add_slide_order_to_presentation_files.exs

@@ -0,0 +1,9 @@
+defmodule Claper.Repo.Migrations.AddSlideOrderToPresentationFiles do
+  use Ecto.Migration
+
+  def change do
+    alter table(:presentation_files) do
+      add :slide_order, {:array, :integer}
+    end
+  end
+end

test/claper/presentations_test.exs

@@ -64,6 +64,95 @@ defmodule Claper.PresentationsTest do
     end
   end
 
+  describe "slide ordering" do
+    import Claper.PresentationsFixtures
+    import Claper.PollsFixtures
+
+    test "get_slide_urls/1 and get_slide_thumbnail_urls/1 honor slide_order" do
+      put_local_storage_config(unique_storage_dir())
+
+      presentation_file = presentation_file_fixture(%{hash: "ordered", length: 3})
+
+      {:ok, presentation_file} =
+        Presentations.update_presentation_file(presentation_file, %{slide_order: [3, 1, 2]})
+
+      assert Presentations.get_slide_urls(presentation_file) == [
+               "/uploads/ordered/3.jpg",
+               "/uploads/ordered/1.jpg",
+               "/uploads/ordered/2.jpg"
+             ]
+
+      assert Presentations.get_slide_thumbnail_urls(presentation_file) == [
+               "/uploads/ordered/thumbs/3.jpg",
+               "/uploads/ordered/thumbs/1.jpg",
+               "/uploads/ordered/thumbs/2.jpg"
+             ]
+    end
+
+    test "a stale slide_order falls back to natural order" do
+      put_local_storage_config(unique_storage_dir())
+
+      presentation_file = presentation_file_fixture(%{hash: "stale", length: 3})
+
+      {:ok, presentation_file} =
+        Presentations.update_presentation_file(presentation_file, %{slide_order: [2, 1]})
+
+      assert Presentations.get_slide_urls(presentation_file) == [
+               "/uploads/stale/1.jpg",
+               "/uploads/stale/2.jpg",
+               "/uploads/stale/3.jpg"
+             ]
+    end
+
+    test "update_presentation_file/2 clears slide_order with a nil param" do
+      presentation_file = presentation_file_fixture()
+
+      {:ok, presentation_file} =
+        Presentations.update_presentation_file(presentation_file, %{slide_order: [2, 1]})
+
+      assert presentation_file.slide_order == [2, 1]
+
+      {:ok, presentation_file} =
+        Presentations.update_presentation_file(presentation_file, %{"slide_order" => nil})
+
+      assert is_nil(presentation_file.slide_order)
+    end
+
+    test "reorder_slides/3 remaps slide order, interactions and state position" do
+      presentation_file = presentation_file_fixture(%{length: 5})
+      presentation_state_fixture(%{presentation_file: presentation_file, position: 1})
+
+      poll_at_0 = poll_fixture(%{presentation_file_id: presentation_file.id, position: 0})
+      poll_at_3 = poll_fixture(%{presentation_file_id: presentation_file.id, position: 3})
+
+      # Move the slide displayed at position 3 to position 0
+      assert {:ok, presentation_file, state} =
+               Presentations.reorder_slides(presentation_file, 3, 0)
+
+      assert presentation_file.slide_order == [4, 1, 2, 3, 5]
+      assert state.position == 2
+      assert Claper.Polls.get_poll!(poll_at_0.id).position == 1
+      assert Claper.Polls.get_poll!(poll_at_3.id).position == 0
+
+      # Moving it back restores the natural order
+      assert {:ok, presentation_file, state} =
+               Presentations.reorder_slides(presentation_file, 0, 3)
+
+      assert presentation_file.slide_order == [1, 2, 3, 4, 5]
+      assert state.position == 1
+      assert Claper.Polls.get_poll!(poll_at_0.id).position == 0
+      assert Claper.Polls.get_poll!(poll_at_3.id).position == 3
+    end
+
+    test "reorder_slides/3 rejects invalid positions" do
+      presentation_file = presentation_file_fixture(%{length: 5})
+
+      assert {:error, :invalid_position} = Presentations.reorder_slides(presentation_file, 0, 0)
+      assert {:error, :invalid_position} = Presentations.reorder_slides(presentation_file, -1, 2)
+      assert {:error, :invalid_position} = Presentations.reorder_slides(presentation_file, 0, 5)
+    end
+  end
+
   describe "presentation_states" do
     alias Claper.Presentations.PresentationState