fix map drag and drop

src/engine/client/client.cpp

@@ -3120,11 +3120,8 @@ void CClient::Run()
 		// handle pending map edits
 		if(m_aCmdEditMap[0])
 		{
-			int Result = m_pEditor->Load(m_aCmdEditMap, IStorage::TYPE_ALL_OR_ABSOLUTE);
-			if(Result)
 			g_Config.m_ClEditor = true;
-			else
+			m_pEditor->HandleMapDrop(m_aCmdEditMap, IStorage::TYPE_ALL_OR_ABSOLUTE);
-				dbg_msg("editor", "editing passed map file '%s' failed", m_aCmdEditMap);
 			m_aCmdEditMap[0] = 0;
 		}
 

src/engine/editor.h

@@ -15,6 +15,7 @@ public:
 	virtual void OnActivate() = 0;
 	virtual void OnWindowResize() = 0;
 	virtual bool HasUnsavedData() const = 0;
+	virtual void HandleMapDrop(const char *pFilename, int StorageType) = 0;
 	virtual bool Load(const char *pFilename, int StorageType) = 0;
 	virtual bool Save(const char *pFilename) = 0;
 	virtual void UpdateMentions() = 0;

src/game/editor/editor.h

@@ -523,6 +523,7 @@ public:
 	// io
 	bool Save(const char *pFilename);
 	bool Load(const char *pFilename, int StorageType, const std::function<void(const char *pErrorMessage)> &ErrorHandler);
+	void HandleMapDrop(const char *pFilename, int StorageType);
 	void PerformSanityChecks(const std::function<void(const char *pErrorMessage)> &ErrorHandler);
 
 	// DDRace
@@ -867,6 +868,7 @@ public:
 		m_BrushColorEnabled = true;
 
 		m_aFileName[0] = '\0';
+		m_aFileNamePending[0] = '\0';
 		m_aFileSaveName[0] = '\0';
 		m_ValidSaveFilename = false;
 
@@ -982,6 +984,7 @@ public:
 	void Reset(bool CreateDefault = true);
 	bool Save(const char *pFilename) override;
 	bool Load(const char *pFilename, int StorageType) override;
+	void HandleMapDrop(const char *pFilename, int StorageType) override;
 	bool Append(const char *pFilename, int StorageType);
 	void LoadCurrentMap();
 	void Render();
@@ -1040,6 +1043,7 @@ public:
 	bool m_BrushColorEnabled;
 
 	char m_aFileName[IO_MAX_PATH_LENGTH];
+	char m_aFileNamePending[IO_MAX_PATH_LENGTH];
 	char m_aFileSaveName[IO_MAX_PATH_LENGTH];
 	bool m_ValidSaveFilename;
 
@@ -1048,6 +1052,7 @@ public:
 		POPEVENT_EXIT = 0,
 		POPEVENT_LOAD,
 		POPEVENT_LOADCURRENT,
+		POPEVENT_LOADDROP,
 		POPEVENT_NEW,
 		POPEVENT_SAVE,
 		POPEVENT_SAVE_COPY,

src/game/editor/io.cpp

@@ -426,6 +426,27 @@ bool CEditorMap::Save(const char *pFileName)
 	return true;
 }
 
+void CEditor::HandleMapDrop(const char *pFileName, int StorageType)
+{
+	m_Map.HandleMapDrop(pFileName, IStorage::TYPE_ALL_OR_ABSOLUTE);
+}
+
+void CEditorMap::HandleMapDrop(const char *pFileName, int StorageType)
+{	
+	if(m_pEditor->HasUnsavedData())
+	{
+		str_copy(m_pEditor->m_aFileNamePending, pFileName);
+		m_pEditor->m_PopupEventType = CEditor::POPEVENT_LOADDROP;
+		m_pEditor->m_PopupEventActivated = true;
+	}
+	else
+	{
+		int Result = m_pEditor->Load(pFileName, IStorage::TYPE_ALL_OR_ABSOLUTE);
+		if(!Result)
+			dbg_msg("editor", "editing passed map file '%s' failed", pFileName);
+	}
+}
+
 bool CEditor::Load(const char *pFileName, int StorageType)
 {
 	const auto &&ErrorHandler = [this](const char *pErrorMessage) {

src/game/editor/popups.cpp

@@ -1721,7 +1721,7 @@ CUI::EPopupMenuFunctionResult CEditor::PopupEvent(void *pContext, CUIRect View,
 		pTitle = "Exit the editor";
 		pMessage = "The map contains unsaved data, you might want to save it before you exit the editor.\n\nContinue anyway?";
 	}
-	else if(pEditor->m_PopupEventType == POPEVENT_LOAD || pEditor->m_PopupEventType == POPEVENT_LOADCURRENT)
+	else if(pEditor->m_PopupEventType == POPEVENT_LOAD || pEditor->m_PopupEventType == POPEVENT_LOADCURRENT || pEditor->m_PopupEventType == POPEVENT_LOADDROP)
 	{
 		pTitle = "Load map";
 		pMessage = "The map contains unsaved data, you might want to save it before you load a new map.\n\nContinue anyway?";
@@ -1786,12 +1786,24 @@ CUI::EPopupMenuFunctionResult CEditor::PopupEvent(void *pContext, CUIRect View,
 	if(pEditor->m_PopupEventType != POPEVENT_LARGELAYER && pEditor->m_PopupEventType != POPEVENT_PREVENTUNUSEDTILES && pEditor->m_PopupEventType != POPEVENT_IMAGEDIV16 && pEditor->m_PopupEventType != POPEVENT_IMAGE_MAX)
 	{
 		static int s_CancelButton = 0;
+		if(pEditor->m_PopupEventType == POPEVENT_LOADDROP)
+		{
+			if(pEditor->DoButton_Editor(&s_CancelButton, "Cancel", 0, &Button, 0, nullptr))
+			{
+				pEditor->m_aFileNamePending[0] = 0;
+				pEditor->m_PopupEventWasActivated = false;
+				return CUI::POPUP_CLOSE_CURRENT;
+			}
+		}
+		else
+		{
 			if(pEditor->DoButton_Editor(&s_CancelButton, "Cancel", 0, &Button, 0, nullptr))
 			{
 				pEditor->m_PopupEventWasActivated = false;
 				return CUI::POPUP_CLOSE_CURRENT;
 			}
 		}
+	}
 
 	ButtonBar.VSplitRight(110.0f, &ButtonBar, &Button);
 	static int s_ConfirmButton = 0;
@@ -1809,6 +1821,13 @@ CUI::EPopupMenuFunctionResult CEditor::PopupEvent(void *pContext, CUIRect View,
 		{
 			pEditor->LoadCurrentMap();
 		}
+		else if(pEditor->m_PopupEventType == POPEVENT_LOADDROP)
+		{	
+			int Result = pEditor->Load(pEditor->m_aFileNamePending, IStorage::TYPE_ALL_OR_ABSOLUTE);
+			if(!Result)
+				dbg_msg("editor", "editing passed map file '%s' failed", pEditor->m_aFileNamePending);
+			pEditor->m_aFileNamePending[0] = 0;
+		}	
 		else if(pEditor->m_PopupEventType == POPEVENT_NEW)
 		{
 			pEditor->Reset();