sys: Clear project context when closing all providers, Display project name in window title (#860)

* clear project context when closing all providers

* Show project name on window title

* refactor RequestChangeWindowTitle to RequestUpdateWindowTitle

* add spaces

lib/libimhex/include/hex/api/event.hpp

@@ -126,7 +126,7 @@ namespace hex {
     EVENT_DEF(RequestSelectionChange, Region);
     EVENT_DEF(RequestAddBookmark, Region, std::string, std::string, color_t);
     EVENT_DEF(RequestSetPatternLanguageCode, std::string);
-    EVENT_DEF(RequestChangeWindowTitle, std::string);
+    EVENT_DEF(RequestUpdateWindowTitle);
     EVENT_DEF(RequestCloseImHex, bool);
     EVENT_DEF(RequestRestartImHex);
     EVENT_DEF(RequestOpenFile, std::fs::path);

lib/libimhex/include/hex/api/project_file_manager.hpp

@@ -34,6 +34,8 @@ namespace hex {
         static bool store(std::optional<std::fs::path> filePath = std::nullopt);
 
         static bool hasPath();
+        static void clearPath();
+        static std::fs::path getPath();
 
         static void registerHandler(const Handler &handler) {
             getHandlers().push_back(handler);

lib/libimhex/source/api/project_file_manager.cpp

@@ -73,7 +73,7 @@ namespace hex {
         }
 
         ProjectFile::s_currProjectPath = filePath;
-
+        EventManager::post<RequestUpdateWindowTitle>();
         return true;
     }
 
@@ -124,4 +124,12 @@ namespace hex {
         return !ProjectFile::s_currProjectPath.empty();
     }
 
+    void ProjectFile::clearPath() {
+        ProjectFile::s_currProjectPath.clear();
+    }
+    
+    std::fs::path ProjectFile::getPath() {
+        return ProjectFile::s_currProjectPath;
+    }
+
 }

main/source/window/window.cpp

@@ -115,13 +115,19 @@ namespace hex {
                 EventManager::post<EventWindowClosing>(this->m_window);
         });
 
-        EventManager::subscribe<RequestChangeWindowTitle>(this, [this](const std::string &windowTitle) {
+        EventManager::subscribe<RequestUpdateWindowTitle>(this, [this]() {
             std::string title = "ImHex";
 
-            if (ImHexApi::Provider::isValid()) {
+            if (ProjectFile::hasPath()) {
+                title += " - Project " + hex::limitStringLength(ProjectFile::getPath().stem().string(), 32);
+
+                if (ImHexApi::Provider::isDirty())
+                    title += " (*)";
+
+            } else if (ImHexApi::Provider::isValid()) {
                 auto provider = ImHexApi::Provider::get();
-                if (!windowTitle.empty() && provider != nullptr) {
+                if (provider != nullptr) {
-                    title += " - " + hex::limitStringLength(windowTitle, 32);
+                    title += " - " + hex::limitStringLength(provider->getName(), 32);
 
                     if (provider->isDirty())
                         title += " (*)";
@@ -177,7 +183,7 @@ namespace hex {
     Window::~Window() {
         EventManager::unsubscribe<EventProviderDeleted>(this);
         EventManager::unsubscribe<RequestCloseImHex>(this);
-        EventManager::unsubscribe<RequestChangeWindowTitle>(this);
+        EventManager::unsubscribe<RequestUpdateWindowTitle>(this);
         EventManager::unsubscribe<EventAbnormalTermination>(this);
         EventManager::unsubscribe<RequestOpenPopup>(this);
 

plugins/builtin/source/content/events.cpp

@@ -44,17 +44,14 @@ namespace hex::plugin::builtin {
 
         EventManager::subscribe<EventProviderChanged>([](hex::prv::Provider *oldProvider, hex::prv::Provider *newProvider) {
             hex::unused(oldProvider);
+            hex::unused(newProvider);
 
-            if (newProvider != nullptr && newProvider->isAvailable()) {
+            EventManager::post<RequestUpdateWindowTitle>();
-                EventManager::post<RequestChangeWindowTitle>(newProvider->getName());
-            } else {
-                EventManager::post<RequestChangeWindowTitle>("");
-            }
         });
 
         EventManager::subscribe<EventProviderOpened>([](hex::prv::Provider *provider) {
             if (provider != nullptr && ImHexApi::Provider::get() == provider)
-                EventManager::post<RequestChangeWindowTitle>(provider->getName());
+                EventManager::post<RequestUpdateWindowTitle>();
         });
 
         EventManager::subscribe<RequestOpenFile>(openFile);

plugins/builtin/source/content/welcome_screen.cpp

@@ -500,6 +500,15 @@ namespace hex::plugin::builtin {
             }
         });
 
+        // clear project context if we go back to the welcome screen
+        EventManager::subscribe<EventProviderChanged>([](hex::prv::Provider *oldProvider, hex::prv::Provider *newProvider) {
+            hex::unused(oldProvider);
+            if (newProvider == nullptr) {
+                ProjectFile::clearPath();
+                EventManager::post<RequestUpdateWindowTitle>();
+            }
+        });
+
         ContentRegistry::Interface::addMenuItem("hex.builtin.menu.file", 1075, [&] {
             if (ImGui::BeginMenu("hex.builtin.menu.file.open_recent"_lang, !s_recentProvidersUpdating && !s_recentProviders.empty())) {
                 // Copy to avoid changing list while iteration