Add an option to restore the old behaviour while dropping a folder

The new behaviour (by default) is open the folder in "Folder as
Workspace". The old behaviour is open all files in folder (recursively).
Now user can choose it.

PowerEditor/src/Notepad_plus.cpp

@@ -3101,7 +3101,8 @@ void Notepad_plus::dropFiles(HDROP hdrop)
 			}
 		}
 		
-		bool isOldMode = false;
+		NppParameters *pNppParam = NppParameters::getInstance();
+		bool isOldMode = pNppParam->getNppGUI()._isFolderDroppedOpenFiles;
 
 		if (isOldMode || folderPaths.size() == 0) // old mode or new mode + only files
 		{

PowerEditor/src/Parameters.cpp

@@ -4707,6 +4707,10 @@ void NppParameters::feedGUIParameters(TiXmlNode *node)
 			if (optNameNewStyleSaveDlg && !lstrcmp(optNameNewStyleSaveDlg, TEXT("yes")))
 				_nppGUI._useNewStyleSaveDlg = true;
 
+			const TCHAR * optNameFolderDroppedOpenFiles = element->Attribute(TEXT("isFolderDroppedOpenFiles"));
+			if (optNameFolderDroppedOpenFiles && !lstrcmp(optNameFolderDroppedOpenFiles, TEXT("yes")))
+				_nppGUI._isFolderDroppedOpenFiles = true;
+
 		}
 	}
 }
@@ -5480,6 +5484,9 @@ bool NppParameters::writeGUIParams()
 
 			const TCHAR * pStrNewStyleSaveDlg = _nppGUI._useNewStyleSaveDlg ? TEXT("yes") : TEXT("no");
 			element->SetAttribute(TEXT("newStyleSaveDlg"), pStrNewStyleSaveDlg);
+
+			const TCHAR * pStrFolderDroppedOpenFiles = _nppGUI._isFolderDroppedOpenFiles ? TEXT("yes") : TEXT("no");
+			element->SetAttribute(TEXT("isFolderDroppedOpenFiles"), pStrFolderDroppedOpenFiles);
 		}
 		else if (!lstrcmp(nm, TEXT("sessionExt")))
 		{
@@ -5816,6 +5823,7 @@ bool NppParameters::writeGUIParams()
 		GUIConfigElement->SetAttribute(TEXT("fileSwitcherWithoutExtColumn"), _nppGUI._fileSwitcherWithoutExtColumn?TEXT("yes"):TEXT("no"));
 		GUIConfigElement->SetAttribute(TEXT("backSlashIsEscapeCharacterForSql"), _nppGUI._backSlashIsEscapeCharacterForSql?TEXT("yes"):TEXT("no"));
 		GUIConfigElement->SetAttribute(TEXT("newStyleSaveDlg"), _nppGUI._useNewStyleSaveDlg?TEXT("yes"):TEXT("no"));
+		GUIConfigElement->SetAttribute(TEXT("isFolderDroppedOpenFiles"), _nppGUI._isFolderDroppedOpenFiles ? TEXT("yes") : TEXT("no"));
 	}
 
 	if (!searchEngineExist)

PowerEditor/src/Parameters.h

@@ -819,6 +819,8 @@ struct NppGUI final
 	enum SearchEngineChoice{ se_custom = 0, se_duckDuckGo = 1, se_google = 2, se_bing = 3, se_yahoo = 4 };
 	SearchEngineChoice _searchEngineChoice = se_google;
 	generic_string _searchEngineCustom;
+
+	bool _isFolderDroppedOpenFiles = false;
 };
 
 struct ScintillaViewParams

PowerEditor/src/WinControls/Preference/preference.rc

@@ -186,8 +186,8 @@ BEGIN
     CONTROL         "",IDC_OPENSAVEDIR_ALWAYSON_RADIO,"Button",BS_AUTORADIOBUTTON,118,89,11,10
     EDITTEXT        IDC_OPENSAVEDIR_ALWAYSON_EDIT,134,88,179,14,ES_AUTOHSCROLL
     PUSHBUTTON      "...",IDD_OPENSAVEDIR_ALWAYSON_BROWSE_BUTTON,320,87,16,14
-		CONTROL         "Use new style save dialog (without file extension feature)",IDC_OPENSAVEDIR_CHECK_USENEWSTYLESAVEDIALOG,
+		CONTROL         "Use new style save dialog (without file extension feature)",IDC_OPENSAVEDIR_CHECK_USENEWSTYLESAVEDIALOG, "Button",BS_AUTOCHECKBOX | WS_TABSTOP,110,145,250,10
-                    "Button",BS_AUTOCHECKBOX | WS_TABSTOP,110,145,250,10
+		CONTROL         "Open all files of folder instead of launching Folder as Workspace on folder dropping",IDC_OPENSAVEDIR_CHECK_DRROPFOLDEROPENFILES, "Button",BS_AUTOCHECKBOX | WS_TABSTOP,110,158,290,10
 END
 
 IDD_PREFERENCE_RECENTFILESHISTORY_BOX DIALOGEX 0, 0, 455, 185

PowerEditor/src/WinControls/Preference/preferenceDlg.cpp

@@ -1391,6 +1391,7 @@ INT_PTR CALLBACK DefaultDirectoryDlg::run_dlgProc(UINT message, WPARAM wParam, L
 				enableDlgTheme(_hSelf, ETDT_ENABLETAB);
 
 			::SendDlgItemMessage(_hSelf, IDC_OPENSAVEDIR_CHECK_USENEWSTYLESAVEDIALOG, BM_SETCHECK, nppGUI._useNewStyleSaveDlg ? BST_CHECKED : BST_UNCHECKED, 0);
+			::SendDlgItemMessage(_hSelf, IDC_OPENSAVEDIR_CHECK_DRROPFOLDEROPENFILES, BM_SETCHECK, nppGUI._isFolderDroppedOpenFiles ? BST_CHECKED : BST_UNCHECKED, 0);
 		}
 
 		case WM_COMMAND : 
@@ -1437,6 +1438,10 @@ INT_PTR CALLBACK DefaultDirectoryDlg::run_dlgProc(UINT message, WPARAM wParam, L
 					nppGUI._useNewStyleSaveDlg = isCheckedOrNot(IDC_OPENSAVEDIR_CHECK_USENEWSTYLESAVEDIALOG);
 					return TRUE;
 
+				case IDC_OPENSAVEDIR_CHECK_DRROPFOLDEROPENFILES:
+					nppGUI._isFolderDroppedOpenFiles = isCheckedOrNot(IDC_OPENSAVEDIR_CHECK_DRROPFOLDEROPENFILES);
+					return TRUE;
+
 				default:
 					return FALSE;
 			}

PowerEditor/src/WinControls/Preference/preference_rc.h

@@ -222,6 +222,7 @@
 	#define	IDC_CUSTOMIZELENGTHVAL_STATIC (IDD_PREFERENCE_NEWDOCSETTING_BOX + 28)
 	#define IDC_DISPLAY_STATIC (IDD_PREFERENCE_NEWDOCSETTING_BOX + 29)
 	#define IDC_OPENSAVEDIR_CHECK_USENEWSTYLESAVEDIALOG (IDD_PREFERENCE_NEWDOCSETTING_BOX + 30)
+	#define IDC_OPENSAVEDIR_CHECK_DRROPFOLDEROPENFILES (IDD_PREFERENCE_NEWDOCSETTING_BOX + 31)
 	
 #define	IDD_PREFERENCE_DEFAULTDIRECTORY_BOX 6450 //(IDD_PREFERENCE_BOX + 400)
 #define	IDD_PREFERENCE_RECENTFILESHISTORY_BOX 6460 //(IDD_PREFERENCE_BOX + 400)