impr: Handle provider opening more centrally, switch to existing provider if same file is being opened again

(cherry picked from commit 89004574d3)

lib/libimhex/include/hex/api/events/events_provider.hpp

@@ -15,7 +15,7 @@ namespace hex {
      * This event is responsible for (optionally) initializing the provider and calling EventProviderOpened
      * (although the event can also be called manually without problem)
      */
-    EVENT_DEF(EventProviderCreated, prv::Provider *);
+    EVENT_DEF(EventProviderCreated, std::shared_ptr<prv::Provider>);
 
     /**
      * @brief Called as a continuation of EventProviderCreated

lib/libimhex/include/hex/api/events/requests_provider.hpp

@@ -10,6 +10,11 @@ namespace hex {
     */
     EVENT_DEF(RequestCreateProvider, std::string, bool, bool, std::shared_ptr<hex::prv::Provider> *);
 
+    /**
+     * @brief Used internally when opening a provider through the API
+    */
+    EVENT_DEF(RequestOpenProvider, std::shared_ptr<prv::Provider>);
+
     /**
      * @brief Move the data from all PerProvider instances from one provider to another
      *

lib/libimhex/include/hex/api/imhex_api/provider.hpp

@@ -117,6 +117,12 @@ EXPORT_MODULE namespace hex {
             bool select = true
         );
 
+        /**
+         * @brief Opens a provider, making its data available to ImHex and handling any error that may occur
+         * @param provider The provider to open
+         */
+        void openProvider(std::shared_ptr<prv::Provider> provider);
+
     }
 
 }