From d1cb79f644cade8f763e7ad7c465ff69ae9a49ce Mon Sep 17 00:00:00 2001
From: spycrab <spycrab@users.noreply.github.com>
Date: Mon, 4 Mar 2019 20:48:40 +0100
Subject: [PATCH] QtUtils: Add ModalMessageBox

---
 Source/Core/DolphinQt/CMakeLists.txt          |  1 +
 Source/Core/DolphinQt/DolphinQt.vcxproj       |  5 +-
 .../DolphinQt/QtUtils/ModalMessageBox.cpp     | 54 +++++++++++++++++++
 .../Core/DolphinQt/QtUtils/ModalMessageBox.h  | 23 ++++++++
 4 files changed, 82 insertions(+), 1 deletion(-)
 create mode 100644 Source/Core/DolphinQt/QtUtils/ModalMessageBox.cpp
 create mode 100644 Source/Core/DolphinQt/QtUtils/ModalMessageBox.h

diff --git a/Source/Core/DolphinQt/CMakeLists.txt b/Source/Core/DolphinQt/CMakeLists.txt
index 04100f7465..85bc526ae6 100644
--- a/Source/Core/DolphinQt/CMakeLists.txt
+++ b/Source/Core/DolphinQt/CMakeLists.txt
@@ -104,6 +104,7 @@ add_executable(dolphin-emu
   QtUtils/DoubleClickEventFilter.cpp
   QtUtils/ElidedButton.cpp
   QtUtils/FlowLayout.cpp
+  QtUtils/ModalMessageBox.cpp
   QtUtils/ImageConverter.cpp
   QtUtils/SignalDaemon.cpp
   QtUtils/WindowActivationEventFilter.cpp
diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
index 0dde566e5a..e2fefa340c 100644
--- a/Source/Core/DolphinQt/DolphinQt.vcxproj
+++ b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -154,6 +154,7 @@
     <QtMoc Include="QtUtils\DoubleClickEventFilter.h" />
     <QtMoc Include="QtUtils\ElidedButton.h" />
     <QtMoc Include="QtUtils\FlowLayout.h" />
+    <QtMoc Include="QtUtils\ModalMessageBox.h" />
     <QtMoc Include="QtUtils\WindowActivationEventFilter.h" />
     <QtMoc Include="QtUtils\WrapInScrollArea.h" />
     <QtMoc Include="RenderWidget.h" />
@@ -245,6 +246,7 @@
     <ClCompile Include="$(QtMocOutPrefix)MemoryViewWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MemoryWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)MenuBar.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)ModalMessageBox.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NetPlayDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NetPlaySetupDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)NewBreakpointDialog.cpp" />
@@ -371,6 +373,7 @@
     <ClCompile Include="QtUtils\ElidedButton.cpp" />
     <ClCompile Include="QtUtils\FlowLayout.cpp" />
     <ClCompile Include="QtUtils\ImageConverter.cpp" />
+    <ClCompile Include="QtUtils\ModalMessageBox.cpp" />
     <ClCompile Include="QtUtils\WindowActivationEventFilter.cpp" />
     <ClCompile Include="QtUtils\WrapInScrollArea.cpp" />
     <ClCompile Include="RenderWidget.cpp" />
@@ -491,4 +494,4 @@
     <Message Text="Copy: @(BinaryFiles) -&gt; $(BinaryOutputDir)" Importance="High" />
     <Copy SourceFiles="@(BinaryFiles)" DestinationFolder="$(BinaryOutputDir)" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/Source/Core/DolphinQt/QtUtils/ModalMessageBox.cpp b/Source/Core/DolphinQt/QtUtils/ModalMessageBox.cpp
new file mode 100644
index 0000000000..25d10de729
--- /dev/null
+++ b/Source/Core/DolphinQt/QtUtils/ModalMessageBox.cpp
@@ -0,0 +1,54 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt/QtUtils/ModalMessageBox.h"
+
+#include <QApplication>
+
+ModalMessageBox::ModalMessageBox(QWidget* parent) : QMessageBox(parent)
+{
+  setWindowModality(Qt::WindowModal);
+
+  // No parent is still preferable to showing a hidden parent here.
+  if (parent != nullptr && !parent->isVisible())
+    setParent(nullptr);
+}
+
+static inline int ExecMessageBox(ModalMessageBox::Icon icon, QWidget* parent, const QString& title,
+                                 const QString& text, ModalMessageBox::StandardButtons buttons,
+                                 ModalMessageBox::StandardButton default_button)
+{
+  ModalMessageBox msg(parent);
+  msg.setIcon(icon);
+  msg.setWindowTitle(title);
+  msg.setText(text);
+  msg.setStandardButtons(buttons);
+  msg.setDefaultButton(default_button);
+
+  return msg.exec();
+}
+
+int ModalMessageBox::critical(QWidget* parent, const QString& title, const QString& text,
+                              StandardButtons buttons, StandardButton default_button)
+{
+  return ExecMessageBox(QMessageBox::Critical, parent, title, text, buttons, default_button);
+}
+
+int ModalMessageBox::information(QWidget* parent, const QString& title, const QString& text,
+                                 StandardButtons buttons, StandardButton default_button)
+{
+  return ExecMessageBox(QMessageBox::Information, parent, title, text, buttons, default_button);
+}
+
+int ModalMessageBox::question(QWidget* parent, const QString& title, const QString& text,
+                              StandardButtons buttons, StandardButton default_button)
+{
+  return ExecMessageBox(QMessageBox::Critical, parent, title, text, buttons, default_button);
+}
+
+int ModalMessageBox::warning(QWidget* parent, const QString& title, const QString& text,
+                             StandardButtons buttons, StandardButton default_button)
+{
+  return ExecMessageBox(QMessageBox::Warning, parent, title, text, buttons, default_button);
+}
diff --git a/Source/Core/DolphinQt/QtUtils/ModalMessageBox.h b/Source/Core/DolphinQt/QtUtils/ModalMessageBox.h
new file mode 100644
index 0000000000..5eb3c597a3
--- /dev/null
+++ b/Source/Core/DolphinQt/QtUtils/ModalMessageBox.h
@@ -0,0 +1,23 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QMessageBox>
+
+// Helper for making message boxes modal by default
+class ModalMessageBox : public QMessageBox
+{
+public:
+  explicit ModalMessageBox(QWidget* parent);
+
+  static int critical(QWidget* parent, const QString& title, const QString& text,
+                      StandardButtons buttons = Ok, StandardButton default_button = NoButton);
+  static int information(QWidget* parent, const QString& title, const QString& text,
+                         StandardButtons buttons = Ok, StandardButton default_button = NoButton);
+  static int question(QWidget* parent, const QString& title, const QString& text,
+                      StandardButtons buttons = Yes | No, StandardButton default_button = NoButton);
+  static int warning(QWidget* parent, const QString& title, const QString& text,
+                     StandardButtons buttons = Ok, StandardButton default_button = NoButton);
+};