impr: Better recovery from exceptions thrown in main thread (#1577)

This PR improves many things which can be seen by the commit name, but
the most important thing is the addition of a popup telling the user
when an exception is thrown

![image](https://github.com/WerWolv/ImHex/assets/42669835/db796416-9cce-4aa5-ad60-c22f05b5fc73)

plugins/builtin/include/content/popups/popup_crash_recovered.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <hex/ui/popup.hpp>
+
+#include <hex/api/localization_manager.hpp>
+
+#include <llvm/Demangle/Demangle.h>
+
+#include <string>
+
+namespace hex::plugin::builtin {
+
+    class PopupCrashRecovered : public Popup<PopupCrashRecovered> {
+    public:
+        PopupCrashRecovered(const std::exception &e)
+            : hex::Popup<PopupCrashRecovered>("hex.builtin.popup.crash_recover.title", false),
+              m_errorType(typeid(e).name()),
+              m_errorMessage(e.what) { }
+
+        void drawContent() override {
+            ImGuiExt::TextFormattedWrapped("hex.builtin.popup.crash_recover.message"_lang);
+
+            ImGuiExt::TextFormattedWrapped(hex::format("Error: {}: {}", llvm::itaniumDemangle(this->m_errorType), this->m_errorMessage));
+
+            if (ImGui::Button("hex.ui.common.okay"_lang)) {
+                this->close();
+            }
+        }
+
+        [[nodiscard]] ImGuiWindowFlags getFlags() const override {
+            return ImGuiWindowFlags_AlwaysAutoResize;
+        }
+
+        [[nodiscard]] ImVec2 getMinSize() const override {
+            return scaled({ 400, 100 });
+        }
+
+        [[nodiscard]] ImVec2 getMaxSize() const override {
+            return scaled({ 600, 300 });
+        }
+
+    private:
+        std::string m_errorType, m_errorMessage;
+    };
+
+}

plugins/builtin/romfs/lang/en_US.json

@@ -374,6 +374,8 @@
         "hex.builtin.popup.exit_application.desc": "You have unsaved changes made to your Project.\nAre you sure you want to exit?",
         "hex.builtin.popup.exit_application.title": "Exit Application?",
         "hex.builtin.popup.waiting_for_tasks.title": "Waiting for Tasks",
+        "hex.builtin.popup.crash_recover.title": "Crash recovery",
+        "hex.builtin.popup.crash_recover.message": "An exception was thrown, but ImHex was able to catch it and advert a crash",
         "hex.builtin.popup.blocking_task.title": "Running Task",
         "hex.builtin.popup.blocking_task.desc": "A task is currently executing.",
         "hex.builtin.popup.save_layout.title": "Save Layout",
@@ -498,7 +500,7 @@
         "hex.builtin.setting.toolbar.icons": "Toolbar Icons",
         "hex.builtin.shortcut.next_provider": "Select next provider",
         "hex.builtin.shortcut.prev_provider": "Select previous provider",
-        "hex.builtin.title_bar_button.debug_build": "Debug build",
+        "hex.builtin.title_bar_button.debug_build": "Debug build\nShift+Click to crash using exception\nCtrl+Click to crash using signal",
         "hex.builtin.title_bar_button.feedback": "Leave Feedback",
         "hex.builtin.tools.ascii_table": "ASCII table",
         "hex.builtin.tools.ascii_table.octal": "Show octal",

plugins/builtin/source/content/events.cpp

@@ -21,6 +21,7 @@
 #include <popups/popup_question.hpp>
 #include <content/popups/popup_tasks_waiting.hpp>
 #include <content/popups/popup_unsaved_changes.hpp>
+#include <content/popups/popup_crash_recovered.hpp>
 
 namespace hex::plugin::builtin {
 
@@ -48,6 +49,10 @@ namespace hex::plugin::builtin {
     void registerEventHandlers() {
 
         static bool imhexClosing = false;
+        EventCrashRecovered::subscribe([](const std::exception &e) {
+            PopupCrashRecovered::open(e);
+        });
+
         EventWindowClosing::subscribe([](GLFWwindow *window) {
             imhexClosing = false;
             if (ImHexApi::Provider::isDirty() && !imhexClosing) {