3 files changed, 94 insertions, 0 deletions

diff --git a/src/yuzu/CMakeLists.txt b/src/yuzu/CMakeLists.txt
index 31b65c04c..5138bd9a3 100644
--- a/src/yuzu/CMakeLists.txt
+++ b/src/yuzu/CMakeLists.txt
@@ -7,6 +7,8 @@ add_executable(yuzu
     Info.plist
     about_dialog.cpp
     about_dialog.h
+    applets/error.cpp
+    applets/error.h
     applets/profile_select.cpp
     applets/profile_select.h
     applets/software_keyboard.cpp
diff --git a/src/yuzu/applets/error.cpp b/src/yuzu/applets/error.cpp
new file mode 100644
index 000000000..f7535e768
--- /dev/null
+++ b/src/yuzu/applets/error.cpp
@@ -0,0 +1,59 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <QDateTime>
+#include "core/hle/lock.h"
+#include "yuzu/applets/error.h"
+#include "yuzu/main.h"
+
+QtErrorDisplay::QtErrorDisplay(GMainWindow& parent) {
+    connect(this, &QtErrorDisplay::MainWindowDisplayError, &parent,
+            &GMainWindow::ErrorDisplayDisplayError, Qt::QueuedConnection);
+    connect(&parent, &GMainWindow::ErrorDisplayFinished, this,
+            &QtErrorDisplay::MainWindowFinishedError, Qt::DirectConnection);
+}
+
+QtErrorDisplay::~QtErrorDisplay() = default;
+
+void QtErrorDisplay::ShowError(ResultCode error, std::function<void()> finished) const {
+    this->callback = finished;
+    emit MainWindowDisplayError(
+        tr("An error has occured.\nPlease try again or contact the developer of the "
+           "software.\n\nError Code: %1-%2 (0x%3)")
+            .arg(static_cast<u32>(error.module.Value()) + 2000, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.description, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.raw, 8, 16, QChar::fromLatin1('0')));
+}
+
+void QtErrorDisplay::ShowErrorWithTimestamp(ResultCode error, std::chrono::seconds time,
+                                            std::function<void()> finished) const {
+    this->callback = finished;
+    emit MainWindowDisplayError(
+        tr("An error occured on %1 at %2.\nPlease try again or contact the "
+           "developer of the software.\n\nError Code: %3-%4 (0x%5)")
+            .arg(QDateTime::fromSecsSinceEpoch(time.count()).toString("dddd, MMMM d, yyyy"))
+            .arg(QDateTime::fromSecsSinceEpoch(time.count()).toString("h:mm:ss A"))
+            .arg(static_cast<u32>(error.module.Value()) + 2000, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.description, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.raw, 8, 16, QChar::fromLatin1('0')));
+}
+
+void QtErrorDisplay::ShowCustomErrorText(ResultCode error, std::string dialog_text,
+                                         std::string fullscreen_text,
+                                         std::function<void()> finished) const {
+    this->callback = finished;
+    emit MainWindowDisplayError(
+        tr("An error has occured.\nError Code: %1-%2 (0x%3)\n\n%4\n\n%5")
+            .arg(static_cast<u32>(error.module.Value()) + 2000, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.description, 4, 10, QChar::fromLatin1('0'))
+            .arg(error.raw, 8, 16, QChar::fromLatin1('0'))
+            .arg(QString::fromStdString(dialog_text))
+            .arg(QString::fromStdString(fullscreen_text)));
+}
+
+void QtErrorDisplay::MainWindowFinishedError() {
+    // Acquire the HLE mutex
+    std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
+    callback();
+}
diff --git a/src/yuzu/applets/error.h b/src/yuzu/applets/error.h
new file mode 100644
index 000000000..b0932d895
--- /dev/null
+++ b/src/yuzu/applets/error.h
@@ -0,0 +1,33 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QObject>
+
+#include "core/frontend/applets/error.h"
+
+class GMainWindow;
+
+class QtErrorDisplay final : public QObject, public Core::Frontend::ErrorApplet {
+    Q_OBJECT
+
+public:
+    explicit QtErrorDisplay(GMainWindow& parent);
+    ~QtErrorDisplay() override;
+
+    void ShowError(ResultCode error, std::function<void()> finished) const override;
+    void ShowErrorWithTimestamp(ResultCode error, std::chrono::seconds time,
+                                std::function<void()> finished) const override;
+    void ShowCustomErrorText(ResultCode error, std::string dialog_text, std::string fullscreen_text,
+                             std::function<void()> finished) const override;
+
+signals:
+    void MainWindowDisplayError(QString error) const;
+
+private:
+    void MainWindowFinishedError();
+
+    mutable std::function<void()> callback;
+};