Add middle mouse click ability to close doc in Document List

Documents are closed on middle mouse click down.

Fix #12949, close #13015

PowerEditor/src/NppBigSwitch.cpp

@@ -1317,6 +1317,21 @@ LRESULT Notepad_plus::process(HWND hwnd, UINT message, WPARAM wParam, LPARAM lPa
 			return TRUE;
 		}
 
+		case NPPM_INTERNAL_CLOSEDOC:
+		{
+			// Close a document without switching to it
+			int whichView = ((wParam != MAIN_VIEW) && (wParam != SUB_VIEW)) ? currentView() : static_cast<int32_t>(wParam);
+			int index = static_cast<int32_t>(lParam);
+			
+			// Gotta switch to correct view to get the correct buffer ID
+			switchEditViewTo(whichView);
+
+			// Close the document
+			fileClose(_pDocTab->getBufferByIndex(index), whichView);
+			
+			return TRUE;
+		}
+
 		// ADD_ZERO_PADDING == TRUE
 		// 
 		// version  | HIWORD | LOWORD

PowerEditor/src/WinControls/VerticalFileSwitcher/VerticalFileSwitcher.cpp

@@ -89,6 +89,41 @@ intptr_t CALLBACK VerticalFileSwitcher::run_dlgProc(UINT message, WPARAM wParam,
 			return TRUE;
 		}
 
+		case WM_PARENTNOTIFY:
+		{
+			switch ( wParam )
+			{
+				case WM_MBUTTONDOWN:
+				{
+					// Get item ID under cursor
+					LVHITTESTINFO hitInfo{};
+					hitInfo.pt.x = GET_X_LPARAM(lParam);
+					hitInfo.pt.y = GET_Y_LPARAM(lParam);
+
+					::ClientToScreen(getHSelf(), &hitInfo.pt);
+					::ScreenToClient(_fileListView.getHSelf(), &hitInfo.pt);
+					ListView_HitTest(_fileListView.getHSelf(), &hitInfo);
+			
+					if (hitInfo.iItem != -1)
+					{
+						// Get the actual item info from the ID
+						LVITEM item{};
+						item.mask = LVIF_PARAM;
+						item.iItem = hitInfo.iItem;	
+						ListView_GetItem(_fileListView.getHSelf(), &item);
+						TaskLstFnStatus *tlfs = (TaskLstFnStatus *)item.lParam;
+
+						// Close the document
+						closeDoc(tlfs);
+
+						return TRUE;
+					}
+				}
+			}
+
+			break;
+		}
+
 		case WM_NOTIFY:
 		{
 			switch (reinterpret_cast<LPNMHDR>(lParam)->code)
@@ -351,11 +386,23 @@ void VerticalFileSwitcher::activateDoc(TaskLstFnStatus *tlfs) const
 	
 	int docPosInfo = static_cast<int32_t>(::SendMessage(_hParent, NPPM_GETPOSFROMBUFFERID, reinterpret_cast<WPARAM>(bufferID), view));
 	int view2set = docPosInfo >> 30;
-	int index2Switch = (docPosInfo << 2) >> 2 ;
+	int index2Switch = (docPosInfo << 2) >> 2;
 
 	::SendMessage(_hParent, NPPM_ACTIVATEDOC, view2set, index2Switch);
 }
 
+void VerticalFileSwitcher::closeDoc(TaskLstFnStatus *tlfs) const
+{
+	int view = tlfs->_iView;
+	BufferID bufferID = static_cast<BufferID>(tlfs->_bufID);
+		
+	int docPosInfo = static_cast<int32_t>(::SendMessage(_hParent, NPPM_GETPOSFROMBUFFERID, reinterpret_cast<WPARAM>(bufferID), view));
+	int view2set = docPosInfo >> 30;
+	int index2Switch = (docPosInfo << 2) >> 2;
+
+	::SendMessage(_hParent, NPPM_INTERNAL_CLOSEDOC, view2set, index2Switch);
+}
+
 int VerticalFileSwitcher::setHeaderOrder(int columnIndex)
 {
 	HWND hListView = _fileListView.getHSelf();

PowerEditor/src/WinControls/VerticalFileSwitcher/VerticalFileSwitcher.h

@@ -47,6 +47,8 @@ public:
 	//Activate document in scintilla by using the internal index
 	void activateDoc(TaskLstFnStatus *tlfs) const;
 
+	void closeDoc(TaskLstFnStatus *tlfs) const;
+
 	int newItem(BufferID bufferID, int iView){
 		return _fileListView.newItem(bufferID, iView);
 	};

PowerEditor/src/resource.h

@@ -648,6 +648,7 @@
 	#define NPPM_INTERNAL_SETNPC                        (NOTEPADPLUS_USER_INTERNAL + 72)
 	#define NPPM_INTERNAL_NPCFORMCHANGED                (NOTEPADPLUS_USER_INTERNAL + 73)
 	#define NPPM_INTERNAL_NPCLAUNCHSTYLECONF            (NOTEPADPLUS_USER_INTERNAL + 74)
+	#define NPPM_INTERNAL_CLOSEDOC                      (NOTEPADPLUS_USER_INTERNAL + 75)
 
 // See Notepad_plus_msgs.h
 //#define NOTEPADPLUS_USER   (WM_USER + 1000)