Initial community commit

Src/Plugins/Library/ml_playlists/pe_subclass.cpp

@@ -0,0 +1,63 @@
+#include "main.h"
+
+static HMENU last_playlistscmdmenu = NULL;
+static WNDPROC PE_oldWndProc;
+static WORD waCmdMenuID;
+
+static BOOL CALLBACK PE_newWndProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	if (uMsg == WM_COMMAND && wParam > 45000 && wParam < 55000)
+	{
+		if (LoadPlaylist(wParam - 45000))
+			return 0;
+	}
+	else if (uMsg == WM_INITMENUPOPUP)
+	{
+		HMENU hmenuPopup = (HMENU) wParam;
+		if (hmenuPopup == wa_playlists_cmdmenu)
+		{
+			if (!waCmdMenuID)
+			{
+				waCmdMenuID = (WORD)SendMessage(plugin.hwndWinampParent,WM_WA_IPC,0,IPC_REGISTER_LOWORD_COMMAND);
+			}
+			if (last_playlistscmdmenu)
+			{
+				RemoveMenu(wa_playlists_cmdmenu, waCmdMenuID, MF_BYCOMMAND);
+				DestroyMenu(last_playlistscmdmenu);
+				last_playlistscmdmenu = NULL;
+			}
+			mlGetTreeStruct mgts = { 3001, 45000, -1};
+			last_playlistscmdmenu = (HMENU)SendMessage(plugin.hwndLibraryParent, WM_ML_IPC, (WPARAM) &mgts, ML_IPC_GETTREE);
+			if (last_playlistscmdmenu)
+			{
+				MENUITEMINFOW menuItem = {sizeof(MENUITEMINFOW), MIIM_SUBMENU | MIIM_ID | MIIM_TYPE, MFT_STRING,
+										  MFS_ENABLED, waCmdMenuID, last_playlistscmdmenu, NULL, NULL, NULL,
+										  WASABI_API_LNGSTRINGW(IDS_OPEN_PLAYLIST_FROM_ML), 0};
+				// if there's no playlists then let the user know this
+				if(!AGAVE_API_PLAYLISTS->GetCount())
+				{
+					wchar_t buf[64] = {0};
+					DestroyMenu(last_playlistscmdmenu);
+					menuItem.hSubMenu = last_playlistscmdmenu = CreateMenu();
+					InsertMenuW(menuItem.hSubMenu, 0, MF_BYPOSITION | MF_STRING | MF_GRAYED, 0, WASABI_API_LNGSTRINGW_BUF(IDS_NO_PLAYLIST_IN_LIBRARY,buf,64));
+				}
+				InsertMenuItemW(wa_playlists_cmdmenu, 1, TRUE, &menuItem);
+			}
+		}
+	}
+	return CallWindowProc(PE_oldWndProc, hwndDlg, uMsg, wParam, lParam);
+}
+
+static HWND hwnd_pe = NULL;
+void HookPlaylistEditor()
+{
+	hwnd_pe =(HWND)SendMessage(plugin.hwndWinampParent,WM_WA_IPC,IPC_GETWND_PE,IPC_GETWND); 
+
+	if (hwnd_pe)
+		PE_oldWndProc=(WNDPROC) SetWindowLongPtr(hwnd_pe,GWLP_WNDPROC,(LONG_PTR)PE_newWndProc); 
+}
+
+void UnhookPlaylistEditor()
+{
+	SetWindowLongPtr(hwnd_pe,GWLP_WNDPROC,(LONG_PTR)PE_oldWndProc);
+}