Plan recording export progress dialog

src/app_core/document_recording.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "app_core/app_dialog.h"
 #include "foundation/result.h"
 
 #include <cstddef>
@@ -84,6 +85,12 @@ public:
     };
 }
 
+[[nodiscard]] inline AppProgressDialogPlan plan_recording_export_progress_dialog(
+    const RecordingExportPlan& plan)
+{
+    return plan_app_progress_dialog("Exporting MP4 movie", plan.progress_total);
+}
+
 [[nodiscard]] constexpr RecordingWorkerIterationPlan plan_recording_worker_iteration(
     bool is_running_after_wake,
     bool has_encoder,

src/legacy_recording_services.cpp

@@ -4,6 +4,7 @@
 
 #include "app.h"
 #include "canvas.h"
+#include "legacy_app_dialog_services.h"
 #include "node_progress_bar.h"
 
 namespace pp::panopainter {
@@ -48,11 +49,11 @@ public:
 
     void begin_export(int progress_total) override
     {
-        progress_ = app_.layout[app_.main_id]->add_child<NodeProgressBar>();
-        progress_->m_progress->SetWidthP(0);
-        progress_->m_title->set_text("Exporting MP4 movie");
-        progress_->m_total = progress_total;
-        progress_->m_count = 0;
+        pp::app::RecordingExportPlan plan;
+        plan.progress_total = progress_total;
+        progress_ = pp::panopainter::create_legacy_app_progress_dialog(
+            app_,
+            pp::app::plan_recording_export_progress_dialog(plan)).get();
     }
 
     void write_mp4(std::string_view path) override