impr: Refactored forwarder executable and add lots more information to it

main/gui/source/window/linux_window.cpp

@@ -0,0 +1,102 @@
+#include "window.hpp"
+
+#if defined(OS_LINUX)
+
+    #include <hex/api/imhex_api.hpp>
+    #include <hex/api/content_registry.hpp>
+    #include <hex/api/event.hpp>
+
+    #include <hex/helpers/utils.hpp>
+    #include <hex/helpers/utils_linux.hpp>
+    #include <hex/helpers/logger.hpp>
+
+    #include <wolv/utils/core.hpp>
+
+    #include <nlohmann/json.hpp>
+    #include <cstdio>
+    #include <sys/wait.h>
+    #include <unistd.h>
+
+    #include <imgui_impl_glfw.h>
+    #include <string.h>
+    #include <ranges>
+
+namespace hex {
+
+    bool isFileInPath(const std::fs::path &filename) {
+        auto optPathVar = hex::getEnvironmentVariable("PATH");
+        if (!optPathVar.has_value()) {
+            log::error("Could not find variable named PATH");
+            return false;
+        }
+
+        for (auto dir : std::views::split(optPathVar.value(), ':')) {
+            if (std::fs::exists(std::fs::path(std::string_view(dir)) / filename)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    void nativeErrorMessage(const std::string &message) {
+        log::fatal(message);
+        if (isFileInPath("zenity")) {
+            executeCmd({"zenity", "--error", "--text", message});
+        } else if(isFileInPath("notify-send")) {
+            executeCmd({"notify-send", "-i", "script-error", "Error", message});
+        } // hopefully one of these commands is installed
+    }
+
+    void Window::initNative() {
+        // Add plugin library folders to dll search path
+        for (const auto &path : hex::fs::getDefaultPaths(fs::ImHexPath::Libraries))  {
+            if (std::fs::exists(path))
+                setenv("LD_LIBRARY_PATH", hex::format("{};{}", hex::getEnvironmentVariable("LD_LIBRARY_PATH").value_or(""), path.string().c_str()).c_str(), true);
+        }
+
+        // Various libraries sadly directly print to stderr with no way to disable it
+        // We redirect stderr to /dev/null to prevent this
+        wolv::util::unused(freopen("/dev/null", "w", stderr));
+        setvbuf(stderr, nullptr, _IONBF, 0);
+
+        // Redirect stdout to log file if we're not running in a terminal
+        if (!isatty(STDOUT_FILENO)) {
+            log::impl::redirectToFile();
+        }
+    }
+
+    void Window::setupNativeWindow() {
+        bool themeFollowSystem = ImHexApi::System::usesSystemThemeDetection();
+        EventManager::subscribe<EventOSThemeChanged>(this, [themeFollowSystem] {
+            if (!themeFollowSystem) return;
+
+            std::array<char, 128> buffer = { 0 };
+            std::string result;
+
+            // Ask GNOME for the current theme
+            // TODO: In the future maybe support more DEs instead of just GNOME
+            FILE *pipe = popen("gsettings get org.gnome.desktop.interface gtk-theme 2>&1", "r");
+            if (pipe == nullptr) return;
+
+            while (fgets(buffer.data(), buffer.size(), pipe) != nullptr)
+                result += buffer.data();
+
+            auto exitCode = WEXITSTATUS(pclose(pipe));
+            if (exitCode != 0) return;
+
+            EventManager::post<RequestChangeTheme>(hex::containsIgnoreCase(result, "light") ? "Light" : "Dark");
+        });
+
+        if (themeFollowSystem)
+            EventManager::post<EventOSThemeChanged>();
+    }
+
+    void Window::beginNativeWindowFrame() {
+    }
+
+    void Window::endNativeWindowFrame() {
+    }
+
+}
+
+#endif