Merge pull request #8714 from JosJuice/progress-dialog-thread

DolphinQt: Run tasks that use progress dialogs on separate threads

17 files changed, 230 insertions, 137 deletions

diff --git a/Source/Android/jni/MainAndroid.cpp b/Source/Android/jni/MainAndroid.cpp
index 2bebbc4e8d..122f3fd6d9 100644
--- a/Source/Android/jni/MainAndroid.cpp
+++ b/Source/Android/jni/MainAndroid.cpp
@@ -140,10 +140,6 @@ void Host_YieldToUI()
 {
 }
 
-void Host_UpdateProgressDialog(const char* caption, int position, int total)
-{
-}
-
 void Host_TitleChanged()
 {
 }
diff --git a/Source/Core/Core/Host.h b/Source/Core/Core/Host.h
index d3f5ee4b61..cf65c22eb0 100644
--- a/Source/Core/Core/Host.h
+++ b/Source/Core/Core/Host.h
@@ -43,5 +43,4 @@ void Host_UpdateDisasmDialog();
 void Host_UpdateMainFrame();
 void Host_UpdateTitle(const std::string& title);
 void Host_YieldToUI();
-void Host_UpdateProgressDialog(const char* caption, int position, int total);
 void Host_TitleChanged();
diff --git a/Source/Core/DolphinNoGUI/MainNoGUI.cpp b/Source/Core/DolphinNoGUI/MainNoGUI.cpp
index 14fac966c9..1278d46c40 100644
--- a/Source/Core/DolphinNoGUI/MainNoGUI.cpp
+++ b/Source/Core/DolphinNoGUI/MainNoGUI.cpp
@@ -99,10 +99,6 @@ void Host_YieldToUI()
 {
 }
 
-void Host_UpdateProgressDialog(const char* caption, int position, int total)
-{
-}
-
 void Host_TitleChanged()
 {
 #ifdef USE_DISCORD_PRESENCE
diff --git a/Source/Core/DolphinQt/CMakeLists.txt b/Source/Core/DolphinQt/CMakeLists.txt
index f0951cb3b5..6a124cd03b 100644
--- a/Source/Core/DolphinQt/CMakeLists.txt
+++ b/Source/Core/DolphinQt/CMakeLists.txt
@@ -224,6 +224,7 @@ add_executable(dolphin-emu
   QtUtils/FlowLayout.h
   QtUtils/ModalMessageBox.cpp
   QtUtils/ModalMessageBox.h
+  QtUtils/ParallelProgressDialog.h
   QtUtils/ImageConverter.cpp
   QtUtils/ImageConverter.h
   QtUtils/WindowActivationEventFilter.cpp
diff --git a/Source/Core/DolphinQt/Config/FilesystemWidget.cpp b/Source/Core/DolphinQt/Config/FilesystemWidget.cpp
index 461a83ccc6..ddffe76963 100644
--- a/Source/Core/DolphinQt/Config/FilesystemWidget.cpp
+++ b/Source/Core/DolphinQt/Config/FilesystemWidget.cpp
@@ -10,7 +10,6 @@
 #include <QFileInfo>
 #include <QHeaderView>
 #include <QMenu>
-#include <QProgressDialog>
 #include <QStandardItemModel>
 #include <QStyleFactory>
 #include <QTreeView>
@@ -23,6 +22,7 @@
 #include "DiscIO/Volume.h"
 
 #include "DolphinQt/QtUtils/ModalMessageBox.h"
+#include "DolphinQt/QtUtils/ParallelProgressDialog.h"
 #include "DolphinQt/Resources.h"
 
 #include "UICommon/UICommon.h"
@@ -282,28 +282,34 @@ void FilesystemWidget::ExtractDirectory(const DiscIO::Partition& partition, cons
   std::unique_ptr<DiscIO::FileInfo> info = filesystem->FindFileInfo(path.toStdString());
   u32 size = info->GetTotalChildren();
 
-  QProgressDialog* dialog = new QProgressDialog(this);
-  dialog->setWindowFlags(dialog->windowFlags() & ~Qt::WindowContextHelpButtonHint);
-  dialog->setMinimum(0);
-  dialog->setMaximum(size);
-  dialog->show();
-  dialog->setWindowTitle(tr("Progress"));
+  ParallelProgressDialog dialog(this);
+  dialog.GetRaw()->setMinimum(0);
+  dialog.GetRaw()->setMaximum(size);
+  dialog.GetRaw()->setWindowTitle(tr("Progress"));
 
-  bool all = path.isEmpty();
+  const bool all = path.isEmpty();
 
-  DiscIO::ExportDirectory(
-      *m_volume, partition, *info, true, path.toStdString(), out.toStdString(),
-      [all, dialog](const std::string& current) {
-        dialog->setLabelText(
-            (all ? QObject::tr("Extracting All Files...") : QObject::tr("Extracting Directory..."))
-                .append(QStringLiteral(" %1").arg(QString::fromStdString(current))));
-        dialog->setValue(dialog->value() + 1);
+  std::future<void> future = std::async(std::launch::async, [&] {
+    int progress = 0;
 
-        QCoreApplication::processEvents();
-        return dialog->wasCanceled();
-      });
+    DiscIO::ExportDirectory(
+        *m_volume, partition, *info, true, path.toStdString(), out.toStdString(),
+        [all, &dialog, &progress](const std::string& current) {
+          dialog.SetLabelText(
+              (all ? QObject::tr("Extracting All Files...") :
+                     QObject::tr("Extracting Directory..."))
+                  .append(QStringLiteral(" %1").arg(QString::fromStdString(current))));
+          dialog.SetValue(++progress);
 
-  dialog->close();
+          QCoreApplication::processEvents();
+          return dialog.WasCanceled();
+        });
+
+    dialog.Reset();
+  });
+
+  dialog.GetRaw()->exec();
+  future.get();
 }
 
 void FilesystemWidget::ExtractFile(const DiscIO::Partition& partition, const QString& path,
diff --git a/Source/Core/DolphinQt/Config/InfoWidget.cpp b/Source/Core/DolphinQt/Config/InfoWidget.cpp
index 416c1a8866..c382c7dc1b 100644
--- a/Source/Core/DolphinQt/Config/InfoWidget.cpp
+++ b/Source/Core/DolphinQt/Config/InfoWidget.cpp
@@ -10,7 +10,6 @@
 #include <QGroupBox>
 #include <QLabel>
 #include <QLineEdit>
-#include <QProgressDialog>
 #include <QPushButton>
 #include <QTextEdit>
 
diff --git a/Source/Core/DolphinQt/Config/VerifyWidget.cpp b/Source/Core/DolphinQt/Config/VerifyWidget.cpp
index 925409a81c..ce221bce8f 100644
--- a/Source/Core/DolphinQt/Config/VerifyWidget.cpp
+++ b/Source/Core/DolphinQt/Config/VerifyWidget.cpp
@@ -4,7 +4,9 @@
 
 #include "DolphinQt/Config/VerifyWidget.h"
 
+#include <future>
 #include <memory>
+#include <optional>
 #include <tuple>
 #include <vector>
 
@@ -12,12 +14,12 @@
 #include <QHBoxLayout>
 #include <QHeaderView>
 #include <QLabel>
-#include <QProgressDialog>
 #include <QVBoxLayout>
 
 #include "Common/CommonTypes.h"
 #include "DiscIO/Volume.h"
 #include "DiscIO/VolumeVerifier.h"
+#include "DolphinQt/QtUtils/ParallelProgressDialog.h"
 
 VerifyWidget::VerifyWidget(std::shared_ptr<DiscIO::Volume> volume) : m_volume(std::move(volume))
 {
@@ -131,33 +133,44 @@ void VerifyWidget::Verify()
   // We have to divide the number of processed bytes with something so it won't make ints overflow
   constexpr int DIVISOR = 0x100;
 
-  QProgressDialog progress(tr("Verifying"), tr("Cancel"), 0, verifier.GetTotalBytes() / DIVISOR,
-                           this);
-  progress.setWindowTitle(tr("Verifying"));
-  progress.setWindowFlags(progress.windowFlags() & ~Qt::WindowContextHelpButtonHint);
-  progress.setMinimumDuration(500);
-  progress.setWindowModality(Qt::WindowModal);
-
-  verifier.Start();
-  while (verifier.GetBytesProcessed() != verifier.GetTotalBytes())
-  {
-    progress.setValue(verifier.GetBytesProcessed() / DIVISOR);
-    if (progress.wasCanceled())
-      return;
-
-    verifier.Process();
-  }
-  verifier.Finish();
-
-  DiscIO::VolumeVerifier::Result result = verifier.GetResult();
-  progress.setValue(verifier.GetBytesProcessed() / DIVISOR);
-
-  m_summary_text->setText(QString::fromStdString(result.summary_text));
-
-  m_problems->setRowCount(static_cast<int>(result.problems.size()));
+  ParallelProgressDialog progress(tr("Verifying"), tr("Cancel"), 0,
+                                  static_cast<int>(verifier.GetTotalBytes() / DIVISOR), this);
+  progress.GetRaw()->setWindowTitle(tr("Verifying"));
+  progress.GetRaw()->setMinimumDuration(500);
+  progress.GetRaw()->setWindowModality(Qt::WindowModal);
+
+  auto future =
+      std::async(std::launch::async,
+                 [&verifier, &progress]() -> std::optional<DiscIO::VolumeVerifier::Result> {
+                   progress.SetValue(0);
+                   verifier.Start();
+                   while (verifier.GetBytesProcessed() != verifier.GetTotalBytes())
+                   {
+                     progress.SetValue(static_cast<int>(verifier.GetBytesProcessed() / DIVISOR));
+                     if (progress.WasCanceled())
+                       return std::nullopt;
+
+                     verifier.Process();
+                   }
+                   verifier.Finish();
+
+                   const DiscIO::VolumeVerifier::Result result = verifier.GetResult();
+                   progress.Reset();
+
+                   return result;
+                 });
+  progress.GetRaw()->exec();
+
+  std::optional<DiscIO::VolumeVerifier::Result> result = future.get();
+  if (!result)
+    return;
+
+  m_summary_text->setText(QString::fromStdString(result->summary_text));
+
+  m_problems->setRowCount(static_cast<int>(result->problems.size()));
   for (int i = 0; i < m_problems->rowCount(); ++i)
   {
-    const DiscIO::VolumeVerifier::Problem problem = result.problems[i];
+    const DiscIO::VolumeVerifier::Problem problem = result->problems[i];
 
     QString severity;
     switch (problem.severity)
@@ -179,12 +192,12 @@ void VerifyWidget::Verify()
     SetProblemCellText(i, 1, severity);
   }
 
-  SetHash(m_crc32_line_edit, result.hashes.crc32);
-  SetHash(m_md5_line_edit, result.hashes.md5);
-  SetHash(m_sha1_line_edit, result.hashes.sha1);
+  SetHash(m_crc32_line_edit, result->hashes.crc32);
+  SetHash(m_md5_line_edit, result->hashes.md5);
+  SetHash(m_sha1_line_edit, result->hashes.sha1);
 
   if (m_redump_line_edit)
-    m_redump_line_edit->setText(QString::fromStdString(result.redump.message));
+    m_redump_line_edit->setText(QString::fromStdString(result->redump.message));
 }
 
 void VerifyWidget::SetProblemCellText(int row, int column, QString text)
diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
index de228eba5f..1763c06300 100644
--- a/Source/Core/DolphinQt/DolphinQt.vcxproj
+++ b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -181,6 +181,7 @@
     <QtMoc Include="QtUtils\FileOpenEventFilter.h" />
     <QtMoc Include="QtUtils\FlowLayout.h" />
     <QtMoc Include="QtUtils\ModalMessageBox.h" />
+    <QtMoc Include="QtUtils\ParallelProgressDialog.h" />
     <QtMoc Include="QtUtils\WindowActivationEventFilter.h" />
     <QtMoc Include="QtUtils\WrapInScrollArea.h" />
     <QtMoc Include="RenderWidget.h" />
@@ -282,6 +283,7 @@
     <ClCompile Include="$(QtMocOutPrefix)NewBreakpointDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NewPatchDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PadMappingDialog.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)ParallelProgressDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PatchesWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PatchInstructionDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PathPane.cpp" />
@@ -541,4 +543,4 @@
     <Message Text="Copy: @(BinaryFiles) -&gt; $(BinaryOutputDir)" Importance="High" />
     <Copy SourceFiles="@(BinaryFiles)" DestinationFolder="$(BinaryOutputDir)" />
   </Target>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Source/Core/DolphinQt/GameList/GameList.cpp b/Source/Core/DolphinQt/GameList/GameList.cpp
index f15b20664f..a635bee291 100644
--- a/Source/Core/DolphinQt/GameList/GameList.cpp
+++ b/Source/Core/DolphinQt/GameList/GameList.cpp
@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <cmath>
+#include <future>
 
 #include <QDesktopServices>
 #include <QDir>
@@ -20,7 +21,6 @@
 #include <QListView>
 #include <QMap>
 #include <QMenu>
-#include <QProgressDialog>
 #include <QShortcut>
 #include <QSortFilterProxyModel>
 #include <QTableView>
@@ -46,6 +46,7 @@
 #include "DolphinQt/MenuBar.h"
 #include "DolphinQt/QtUtils/DoubleClickEventFilter.h"
 #include "DolphinQt/QtUtils/ModalMessageBox.h"
+#include "DolphinQt/QtUtils/ParallelProgressDialog.h"
 #include "DolphinQt/Resources.h"
 #include "DolphinQt/Settings.h"
 #include "DolphinQt/WiiUpdate.h"
@@ -577,34 +578,50 @@ void GameList::CompressISO(bool decompress)
       }
     }
 
-    QProgressDialog progress_dialog(decompress ? tr("Decompressing...") : tr("Compressing..."),
-                                    tr("Abort"), 0, 100, this);
-    progress_dialog.setWindowModality(Qt::WindowModal);
-    progress_dialog.setWindowFlags(progress_dialog.windowFlags() &
-                                   ~Qt::WindowContextHelpButtonHint);
-    progress_dialog.setWindowTitle(tr("Progress"));
+    ParallelProgressDialog progress_dialog(
+        decompress ? tr("Decompressing...") : tr("Compressing..."), tr("Abort"), 0, 100, this);
+    progress_dialog.GetRaw()->setWindowModality(Qt::WindowModal);
+    progress_dialog.GetRaw()->setWindowTitle(tr("Progress"));
 
-    bool good;
+    std::future<bool> good;
 
     if (decompress)
     {
       if (files.size() > 1)
-        progress_dialog.setLabelText(tr("Decompressing...") + QLatin1Char{'\n'} +
-                                     QFileInfo(QString::fromStdString(original_path)).fileName());
-      good = DiscIO::DecompressBlobToFile(original_path, dst_path.toStdString(), &CompressCB,
-                                          &progress_dialog);
+      {
+        progress_dialog.GetRaw()->setLabelText(
+            tr("Decompressing...") + QLatin1Char{'\n'} +
+            QFileInfo(QString::fromStdString(original_path)).fileName());
+      }
+
+      good = std::async(std::launch::async, [&] {
+        const bool good = DiscIO::DecompressBlobToFile(original_path, dst_path.toStdString(),
+                                                       &CompressCB, &progress_dialog);
+        progress_dialog.Reset();
+        return good;
+      });
     }
     else
     {
       if (files.size() > 1)
-        progress_dialog.setLabelText(tr("Compressing...") + QLatin1Char{'\n'} +
-                                     QFileInfo(QString::fromStdString(original_path)).fileName());
-      good = DiscIO::CompressFileToBlob(original_path, dst_path.toStdString(),
-                                        file->GetPlatform() == DiscIO::Platform::WiiDisc ? 1 : 0,
-                                        16384, &CompressCB, &progress_dialog);
+      {
+        progress_dialog.GetRaw()->setLabelText(
+            tr("Compressing...") + QLatin1Char{'\n'} +
+            QFileInfo(QString::fromStdString(original_path)).fileName());
+      }
+
+      good = std::async(std::launch::async, [&] {
+        const bool good =
+            DiscIO::CompressFileToBlob(original_path, dst_path.toStdString(),
+                                       file->GetPlatform() == DiscIO::Platform::WiiDisc ? 1 : 0,
+                                       16384, &CompressCB, &progress_dialog);
+        progress_dialog.Reset();
+        return good;
+      });
     }
 
-    if (!good)
+    progress_dialog.GetRaw()->exec();
+    if (!good.get())
     {
       QErrorMessage(this).showMessage(tr("Dolphin failed to complete the requested action."));
       return;
@@ -937,10 +954,10 @@ static bool CompressCB(const std::string& text, float percent, void* ptr)
   if (ptr == nullptr)
     return false;
 
-  auto* progress_dialog = static_cast<QProgressDialog*>(ptr);
+  auto* progress_dialog = static_cast<ParallelProgressDialog*>(ptr);
 
-  progress_dialog->setValue(percent * 100);
-  return !progress_dialog->wasCanceled();
+  progress_dialog->SetValue(percent * 100);
+  return !progress_dialog->WasCanceled();
 }
 
 void GameList::OnSectionResized(int index, int, int)
diff --git a/Source/Core/DolphinQt/Host.cpp b/Source/Core/DolphinQt/Host.cpp
index fc53954195..cb910854d1 100644
--- a/Source/Core/DolphinQt/Host.cpp
+++ b/Source/Core/DolphinQt/Host.cpp
@@ -6,7 +6,6 @@
 
 #include <QAbstractEventDispatcher>
 #include <QApplication>
-#include <QProgressDialog>
 
 #include <imgui.h>
 
@@ -126,11 +125,6 @@ void Host_UpdateDisasmDialog()
   QueueOnObject(QApplication::instance(), [] { emit Host::GetInstance()->UpdateDisasmDialog(); });
 }
 
-void Host_UpdateProgressDialog(const char* caption, int position, int total)
-{
-  emit Host::GetInstance()->UpdateProgressDialog(QString::fromUtf8(caption), position, total);
-}
-
 void Host::RequestNotifyMapLoaded()
 {
   QueueOnObject(QApplication::instance(), [this] { emit NotifyMapLoaded(); });
diff --git a/Source/Core/DolphinQt/Host.h b/Source/Core/DolphinQt/Host.h
index 9a25d217a9..e1c44b91a2 100644
--- a/Source/Core/DolphinQt/Host.h
+++ b/Source/Core/DolphinQt/Host.h
@@ -33,7 +33,6 @@ signals:
   void RequestTitle(const QString& title);
   void RequestStop();
   void RequestRenderSize(int w, int h);
-  void UpdateProgressDialog(QString label, int position, int maximum);
   void UpdateDisasmDialog();
   void NotifyMapLoaded();
 
diff --git a/Source/Core/DolphinQt/MainWindow.cpp b/Source/Core/DolphinQt/MainWindow.cpp
index 6080457c5a..89a19b42ba 100644
--- a/Source/Core/DolphinQt/MainWindow.cpp
+++ b/Source/Core/DolphinQt/MainWindow.cpp
@@ -12,7 +12,6 @@
 #include <QFileInfo>
 #include <QIcon>
 #include <QMimeData>
-#include <QProgressDialog>
 #include <QStackedWidget>
 #include <QVBoxLayout>
 #include <QWindow>
@@ -87,6 +86,7 @@
 #include "DolphinQt/NetPlay/NetPlaySetupDialog.h"
 #include "DolphinQt/QtUtils/FileOpenEventFilter.h"
 #include "DolphinQt/QtUtils/ModalMessageBox.h"
+#include "DolphinQt/QtUtils/ParallelProgressDialog.h"
 #include "DolphinQt/QtUtils/QueueOnObject.h"
 #include "DolphinQt/QtUtils/RunOnObject.h"
 #include "DolphinQt/QtUtils/WindowActivationEventFilter.h"
@@ -615,8 +615,6 @@ void MainWindow::ConnectRenderWidget()
 
 void MainWindow::ConnectHost()
 {
-  connect(Host::GetInstance(), &Host::UpdateProgressDialog, this,
-          &MainWindow::OnUpdateProgressDialog);
   connect(Host::GetInstance(), &Host::RequestStop, this, &MainWindow::RequestStop);
 }
 
@@ -1510,23 +1508,21 @@ void MainWindow::OnImportNANDBackup()
   if (file.isEmpty())
     return;
 
-  QProgressDialog* dialog = new QProgressDialog(this);
-  dialog->setMinimum(0);
-  dialog->setMaximum(0);
-  dialog->setLabelText(tr("Importing NAND backup"));
-  dialog->setCancelButton(nullptr);
+  ParallelProgressDialog dialog(this);
+  dialog.GetRaw()->setMinimum(0);
+  dialog.GetRaw()->setMaximum(0);
+  dialog.GetRaw()->setLabelText(tr("Importing NAND backup"));
+  dialog.GetRaw()->setCancelButton(nullptr);
 
   auto beginning = QDateTime::currentDateTime().toMSecsSinceEpoch();
 
-  auto result = std::async(std::launch::async, [&] {
+  std::future<void> result = std::async(std::launch::async, [&] {
     DiscIO::NANDImporter().ImportNANDBin(
         file.toStdString(),
         [&dialog, beginning] {
-          QueueOnObject(dialog, [&dialog, beginning] {
-            dialog->setLabelText(
-                tr("Importing NAND backup\n Time elapsed: %1s")
-                    .arg((QDateTime::currentDateTime().toMSecsSinceEpoch() - beginning) / 1000));
-          });
+          dialog.SetLabelText(
+              tr("Importing NAND backup\n Time elapsed: %1s")
+                  .arg((QDateTime::currentDateTime().toMSecsSinceEpoch() - beginning) / 1000));
         },
         [this] {
           std::optional<std::string> keys_file = RunOnObject(this, [this] {
@@ -1540,10 +1536,10 @@ void MainWindow::OnImportNANDBackup()
             return *keys_file;
           return std::string("");
         });
-    QueueOnObject(dialog, &QProgressDialog::close);
+    dialog.Reset();
   });
 
-  dialog->exec();
+  dialog.GetRaw()->exec();
 
   result.wait();
 
@@ -1703,28 +1699,6 @@ void MainWindow::ShowCheatsManager()
   m_cheats_manager->show();
 }
 
-void MainWindow::OnUpdateProgressDialog(QString title, int progress, int total)
-{
-  if (!m_progress_dialog)
-  {
-    m_progress_dialog = new QProgressDialog(m_render_widget, Qt::WindowTitleHint);
-    m_progress_dialog->show();
-    m_progress_dialog->setCancelButton(nullptr);
-    m_progress_dialog->setWindowTitle(tr("Dolphin"));
-  }
-
-  m_progress_dialog->setValue(progress);
-  m_progress_dialog->setLabelText(title);
-  m_progress_dialog->setMaximum(total);
-
-  if (total < 0 || progress >= total)
-  {
-    m_progress_dialog->hide();
-    m_progress_dialog->deleteLater();
-    m_progress_dialog = nullptr;
-  }
-}
-
 void MainWindow::Show()
 {
   if (!Settings::Instance().IsBatchModeEnabled())
diff --git a/Source/Core/DolphinQt/MainWindow.h b/Source/Core/DolphinQt/MainWindow.h
index acc93df540..50fea52a24 100644
--- a/Source/Core/DolphinQt/MainWindow.h
+++ b/Source/Core/DolphinQt/MainWindow.h
@@ -11,7 +11,6 @@
 #include <optional>
 #include <string>
 
-class QProgressDialog;
 class QStackedWidget;
 class QString;
 
@@ -167,8 +166,6 @@ private:
   void OnSignal();
 #endif
 
-  void OnUpdateProgressDialog(QString label, int progress, int total);
-
   void OnPlayRecording();
   void OnStartRecording();
   void OnStopRecording();
@@ -193,7 +190,6 @@ private:
   std::unique_ptr<X11Utils::XRRConfiguration> m_xrr_config;
 #endif
 
-  QProgressDialog* m_progress_dialog = nullptr;
   QStackedWidget* m_stack;
   ToolBar* m_tool_bar;
   MenuBar* m_menu_bar;
diff --git a/Source/Core/DolphinQt/NetPlay/NetPlayDialog.cpp b/Source/Core/DolphinQt/NetPlay/NetPlayDialog.cpp
index 31abe2f384..230823b8b6 100644
--- a/Source/Core/DolphinQt/NetPlay/NetPlayDialog.cpp
+++ b/Source/Core/DolphinQt/NetPlay/NetPlayDialog.cpp
@@ -14,7 +14,6 @@
 #include <QLabel>
 #include <QLineEdit>
 #include <QMenu>
-#include <QProgressDialog>
 #include <QPushButton>
 #include <QSignalBlocker>
 #include <QSpinBox>
diff --git a/Source/Core/DolphinQt/QtUtils/ParallelProgressDialog.h b/Source/Core/DolphinQt/QtUtils/ParallelProgressDialog.h
new file mode 100644
index 0000000000..274e3d4b11
--- /dev/null
+++ b/Source/Core/DolphinQt/QtUtils/ParallelProgressDialog.h
@@ -0,0 +1,108 @@
+#pragma once
+
+#include <chrono>
+#include <utility>
+
+#include <QObject>
+#include <QProgressDialog>
+#include <QString>
+
+#include "Common/Flag.h"
+
+class ParallelProgressDialog final : public QObject
+{
+  Q_OBJECT
+
+public:
+  // Only use this from the main thread
+  template <typename... Args>
+  ParallelProgressDialog(Args&&... args) : m_dialog{std::forward<Args>(args)...}
+  {
+    setParent(m_dialog.parent());
+    m_dialog.setWindowFlags(m_dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);
+    ConnectSignalsAndSlots();
+  }
+
+  // Only use this from the main thread
+  QProgressDialog* GetRaw() { return &m_dialog; }
+
+  // All of the following can be called from any thread
+  void Cancel() { emit CancelSignal(); }
+  void Reset() { emit ResetSignal(); }
+  void SetCancelButtonText(const QString& text) { emit SetCancelButtonText(text); }
+  void SetLabelText(const QString& text) { emit SetLabelTextSignal(text); }
+  void SetMaximum(int maximum) { emit SetMaximumSignal(maximum); }
+  void SetMinimum(int minimum) { emit SetMinimumSignal(minimum); }
+  void SetMinimumDuration(int ms) { emit SetMinimumDurationSignal(ms); }
+  void SetRange(int minimum, int maximum) { emit SetRangeSignal(minimum, maximum); }
+
+  // Can be called from any thread, but only from one thread at a time
+  void SetValue(int progress)
+  {
+    // HACK: To avoid the https://bugreports.qt.io/browse/QTBUG-10561 stack overflow,
+    // limit how often QProgressDialog::setValue can run
+    const auto current_time = std::chrono::steady_clock::now();
+    if (current_time - m_last_setvalue_time >= std::chrono::milliseconds(50))
+    {
+      m_last_setvalue_time = current_time;
+      emit SetValueSignal(progress);
+    }
+  }
+
+  // Can be called from any thread
+  bool WasCanceled() { return m_was_cancelled.IsSet(); }
+
+signals:
+  void CancelSignal();
+  void ResetSignal();
+  void SetCancelButtonTextSignal(const QString& cancel_button_text);
+  void SetLabelTextSignal(const QString& text);
+  void SetMaximumSignal(int maximum);
+  void SetMinimumSignal(int minimum);
+  void SetMinimumDurationSignal(int ms);
+  void SetRangeSignal(int minimum, int maximum);
+  void SetValueSignal(int progress);
+
+  void Canceled();
+  void Finished(int result);
+
+private slots:
+  void OnCancelled() { m_was_cancelled.Set(); }
+
+private:
+  template <typename Func1, typename Func2>
+  void ConnectSignal(Func1 signal, Func2 slot)
+  {
+    QObject::connect(this, signal, &m_dialog, slot);
+  }
+
+  template <typename Func1, typename Func2>
+  void ConnectSlot(Func1 signal, Func2 slot)
+  {
+    QObject::connect(&m_dialog, signal, this, slot);
+  }
+
+  void ConnectSignalsAndSlots()
+  {
+    ConnectSignal(&ParallelProgressDialog::CancelSignal, &QProgressDialog::cancel);
+    ConnectSignal(&ParallelProgressDialog::ResetSignal, &QProgressDialog::reset);
+    ConnectSignal(&ParallelProgressDialog::SetCancelButtonTextSignal,
+                  &QProgressDialog::setCancelButtonText);
+    ConnectSignal(&ParallelProgressDialog::SetLabelTextSignal, &QProgressDialog::setLabelText);
+    ConnectSignal(&ParallelProgressDialog::SetMaximumSignal, &QProgressDialog::setMaximum);
+    ConnectSignal(&ParallelProgressDialog::SetMinimumSignal, &QProgressDialog::setMinimum);
+    ConnectSignal(&ParallelProgressDialog::SetMinimumDurationSignal,
+                  &QProgressDialog::setMinimumDuration);
+    ConnectSignal(&ParallelProgressDialog::SetRangeSignal, &QProgressDialog::setRange);
+    ConnectSignal(&ParallelProgressDialog::SetValueSignal, &QProgressDialog::setValue);
+
+    ConnectSlot(&QProgressDialog::canceled, &ParallelProgressDialog::OnCancelled);
+
+    ConnectSlot(&QProgressDialog::canceled, &ParallelProgressDialog::Canceled);
+    ConnectSlot(&QProgressDialog::finished, &ParallelProgressDialog::Finished);
+  }
+
+  QProgressDialog m_dialog;
+  Common::Flag m_was_cancelled;
+  std::chrono::time_point<std::chrono::steady_clock> m_last_setvalue_time;
+};
diff --git a/Source/DSPTool/StubHost.cpp b/Source/DSPTool/StubHost.cpp
index 75dd66296d..488a49d2cd 100644
--- a/Source/DSPTool/StubHost.cpp
+++ b/Source/DSPTool/StubHost.cpp
@@ -45,9 +45,6 @@ bool Host_RendererIsFullscreen()
 void Host_YieldToUI()
 {
 }
-void Host_UpdateProgressDialog(const char* caption, int position, int total)
-{
-}
 void Host_TitleChanged()
 {
 }
diff --git a/Source/UnitTests/StubHost.cpp b/Source/UnitTests/StubHost.cpp
index 4fa45ef1c2..211ee8bfba 100644
--- a/Source/UnitTests/StubHost.cpp
+++ b/Source/UnitTests/StubHost.cpp
@@ -46,9 +46,6 @@ bool Host_RendererIsFullscreen()
 void Host_YieldToUI()
 {
 }
-void Host_UpdateProgressDialog(const char* caption, int position, int total)
-{
-}
 void Host_TitleChanged()
 {
 }