add flag for dead view mode

Author: GuzekAlan

config/config.exs

@@ -40,6 +40,7 @@ if config_env() == :dev do
     ]
 
   config :live_debugger,
+    dead_view_mode?: true,
     live_reload: [
       patterns: [
         ~r"priv/static/.*(js|css|svg)$",

lib/live_debugger/env.ex

@@ -19,4 +19,8 @@ defmodule LiveDebugger.Env do
     Application.get_env(:live_debugger, :test_mode?, false) and
       not Application.get_env(:live_debugger, :e2e?, false)
   end
+
+  def dead_view_mode?() do
+    Application.get_env(:live_debugger, :dead_view_mode?, false)
+  end
 end

lib/live_debugger/gen_servers/ets_table_server.ex

@@ -65,8 +65,10 @@ defmodule LiveDebugger.GenServers.EtsTableServer do
       |> Map.update!(closed_pid, fn table_info -> %{table_info | alive?: false} end)
       |> maybe_delete_ets_table(closed_pid)
 
-    PubSubUtils.process_status_topic()
-    |> PubSubUtils.broadcast({:process_status, {:died, closed_pid}})
+    if LiveDebugger.Env.dead_view_mode?() do
+      PubSubUtils.process_status_topic()
+      |> PubSubUtils.broadcast({:process_status, {:died, closed_pid}})
+    end
 
     {:noreply, state}
   end

lib/live_debugger_web/components/navbar.ex

@@ -107,6 +107,7 @@ defmodule LiveDebuggerWeb.Components.Navbar do
 
   @doc """
   Component for displaying the connection status of a LiveView.
+  When button is clicked, it will trigger a `find-successor` event with the PID of the LiveView.
   """
   attr(:connected?, :boolean, required: true, doc: "Whether LiveView is connected.")
   attr(:pid, :string, required: true, doc: "The PID of the LiveView.")
@@ -121,6 +122,7 @@ defmodule LiveDebuggerWeb.Components.Navbar do
         <%= @pid %>
       <% else %>
         <span class="font-medium">Disconnected</span>
+        <.button phx-click="find-successor" variant="secondary" size="sm">Continue</.button>
       <% end %>
     </div>
     """

lib/live_debugger_web/hooks/linked_view.ex

@@ -63,7 +63,9 @@ defmodule LiveDebuggerWeb.Hooks.LinkedView do
     PubSubUtils.process_status_topic()
     |> PubSubUtils.subscribe!()
 
-    LiveDebugger.GenServers.EtsTableServer.watch(fetched_lv_process.pid)
+    if LiveDebugger.Env.dead_view_mode?() do
+      LiveDebugger.GenServers.EtsTableServer.watch(fetched_lv_process.pid)
+    end
 
     socket
     |> assign(:lv_process, AsyncResult.ok(fetched_lv_process))
@@ -83,6 +85,12 @@ defmodule LiveDebuggerWeb.Hooks.LinkedView do
 
   def handle_async(_, _, socket), do: {:cont, socket}
 
+  def handle_info(:find_successor, socket) do
+    socket
+    |> find_successor_lv_process()
+    |> halt()
+  end
+
   def handle_info(
         {:process_status, {:died, pid}},
         %{assigns: %{lv_process: %{result: %LvProcess{pid: pid}}}} = socket
@@ -93,7 +101,17 @@ defmodule LiveDebuggerWeb.Hooks.LinkedView do
     |> halt()
   end
 
-  def handle_info({:process_status, _}, socket), do: halt(socket)
+  def handle_info(
+        {:process_status, {:dead, pid}},
+        %{assigns: %{lv_process: %{result: %LvProcess{pid: pid}}}} = socket
+      ) do
+    if LiveDebugger.Env.dead_view_mode?() do
+      socket
+    else
+      find_successor_lv_process(socket)
+    end
+    |> halt()
+  end
 
   def handle_info(_, socket), do: {:cont, socket}
 

lib/live_debugger_web/live/channel_dashboard_live.ex

@@ -86,6 +86,13 @@ defmodule LiveDebuggerWeb.ChannelDashboardLive do
     """
   end
 
+  @impl true
+  def handle_event("find-successor", _, socket) do
+    send(self(), :find_successor)
+
+    {:noreply, socket}
+  end
+
   defp assign_node_id(socket, %{"node_id" => node_id}) do
     case TreeNode.id_from_string(node_id) do
       {:ok, id} ->