diff options
Diffstat (limited to 'win/tkWinMenu.c')
| -rw-r--r-- | win/tkWinMenu.c | 174 |
1 files changed, 104 insertions, 70 deletions
diff --git a/win/tkWinMenu.c b/win/tkWinMenu.c index fd3592b..bf9c751 100644 --- a/win/tkWinMenu.c +++ b/win/tkWinMenu.c @@ -10,7 +10,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkWinMenu.c,v 1.46 2005/11/10 11:38:29 dkf Exp $ + * RCS: @(#) $Id: tkWinMenu.c,v 1.47 2006/04/05 20:59:04 hobbs Exp $ */ #define OEMRESOURCE @@ -55,8 +55,6 @@ static int indicatorDimensions[2]; * time. */ typedef struct ThreadSpecificData { - Tcl_HashTable commandTable; - /* A map of command ids to menu entries */ int inPostMenu; /* We cannot be re-entrant like X Windows. */ WORD lastCommandID; /* The last command ID we allocated. */ HWND menuHWND; /* A window to service popup-menu messages @@ -72,8 +70,8 @@ typedef struct ThreadSpecificData { * active items when menus go away since * Windows does not see fit to give this to us * when it sends its WM_MENUSELECT. */ - Tcl_HashTable winMenuTable; - /* Need this to map HMENUs back to menuPtrs */ + Tcl_HashTable commandTable; /* A map of command ids to menu entries */ + Tcl_HashTable winMenuTable; /* Need this to map HMENUs back to menuPtrs */ } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; @@ -242,11 +240,16 @@ FreeID(commandID) ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); - Tcl_HashEntry *entryPtr = Tcl_FindHashEntry(&tsdPtr->commandTable, - (char *) commandID); + /* + * If the menuHWND is NULL, this table has been finalized already. + */ - if (entryPtr != NULL) { - Tcl_DeleteHashEntry(entryPtr); + if (tsdPtr->menuHWND != NULL) { + Tcl_HashEntry *entryPtr = Tcl_FindHashEntry(&tsdPtr->commandTable, + (char *) commandID); + if (entryPtr != NULL) { + Tcl_DeleteHashEntry(entryPtr); + } } } @@ -361,16 +364,17 @@ TkpDestroyMenu(menuPtr) } } } else { - Tcl_HashEntry *hashEntryPtr; - /* * Remove the menu from the menu hash table, then destroy the handle. + * If the menuHWND is NULL, this table has been finalized already. */ - hashEntryPtr = Tcl_FindHashEntry(&tsdPtr->winMenuTable, - (char *) winMenuHdl); - if (hashEntryPtr != NULL) { - Tcl_DeleteHashEntry(hashEntryPtr); + if (tsdPtr->menuHWND != NULL) { + Tcl_HashEntry *hashEntryPtr = + Tcl_FindHashEntry(&tsdPtr->winMenuTable, (char *) winMenuHdl); + if (hashEntryPtr != NULL) { + Tcl_DeleteHashEntry(hashEntryPtr); + } } DestroyMenu(winMenuHdl); } @@ -1933,12 +1937,15 @@ TkWinMenuKeyObjCmd(clientData, interp, objc, objv) eventPtr = TkpGetBindingXEvent(interp); - tkwin = Tk_NameToWindow(interp, - Tcl_GetString(objv[1]), - Tk_MainWindow(interp)); + tkwin = Tk_NameToWindow(interp, Tcl_GetString(objv[1]), + Tk_MainWindow(interp)); if (tkwin == NULL) { - return TCL_ERROR; + /* + * If we don't find the key, just return, as the window may have + * been destroyed in the binding. [Bug 1236306] + */ + return TCL_OK; } winPtr = (TkWindow *)tkwin; @@ -2927,10 +2934,38 @@ TkpMenuNotifyToplevelCreate( /* *---------------------------------------------------------------------- * + * Tk_GetMenuHWND -- + * + * This function returns the HWND of a hidden menu Window that processes + * messages of a popup menu. This hidden menu window is used to handle + * either a dynamic popup menu in the same process or a pull-down menu of + * an embedded window in a different process. + * + * Results: + * Returns the HWND of the hidden menu Window. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +HWND +Tk_GetMenuHWND(tkwin) + Tk_Window tkwin; +{ + ThreadSpecificData *tsdPtr = (ThreadSpecificData *) + Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); + TkMenuInit(); + return tsdPtr->embeddedMenuHWND; +} + +/* + *---------------------------------------------------------------------- + * * MenuExitHandler -- * - * Throws away the utility window needed for menus and unregisters the - * class. + * Unregisters the class of utility windows. * * Results: * None. @@ -2945,14 +2980,41 @@ static void MenuExitHandler( ClientData clientData) /* Not used */ { + UnregisterClass(MENU_CLASS_NAME, Tk_GetHINSTANCE()); + UnregisterClass(EMBEDDED_MENU_CLASS_NAME, Tk_GetHINSTANCE()); +} + +/* + *---------------------------------------------------------------------- + * + * MenuExitHandler -- + * + * Throws away the utility window needed for menus and delete hash + * tables. + * + * Results: + * None. + * + * Side effects: + * Menus have to be reinitialized next time. + * + *---------------------------------------------------------------------- + */ + +static void +MenuThreadExitHandler( + ClientData clientData) /* Not used */ +{ ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); DestroyWindow(tsdPtr->menuHWND); - UnregisterClass(MENU_CLASS_NAME, Tk_GetHINSTANCE()); - DestroyWindow(tsdPtr->embeddedMenuHWND); - UnregisterClass(EMBEDDED_MENU_CLASS_NAME, Tk_GetHINSTANCE()); + tsdPtr->menuHWND = NULL; + tsdPtr->embeddedMenuHWND = NULL; + + Tcl_DeleteHashTable(&tsdPtr->winMenuTable); + Tcl_DeleteHashTable(&tsdPtr->commandTable); } /* @@ -3122,8 +3184,6 @@ void TkpMenuInit() { WNDCLASS wndClass; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); wndClass.style = CS_OWNDC; wndClass.lpfnWndProc = TkWinMenuProc; @@ -3139,59 +3199,15 @@ TkpMenuInit() Tcl_Panic("Failed to register menu window class."); } - tsdPtr->menuHWND = CreateWindow(MENU_CLASS_NAME, "MenuWindow", WS_POPUP, - 0, 0, 10, 10, NULL, NULL, Tk_GetHINSTANCE(), NULL); - - if (!tsdPtr->menuHWND) { - Tcl_Panic("Failed to create the menu window."); - } - wndClass.lpfnWndProc = TkWinEmbeddedMenuProc; wndClass.lpszClassName = EMBEDDED_MENU_CLASS_NAME; if (!RegisterClass(&wndClass)) { Tcl_Panic("Failed to register embedded menu window class."); } - tsdPtr->embeddedMenuHWND = - CreateWindow(EMBEDDED_MENU_CLASS_NAME, "EmbeddedMenuWindow", - WS_POPUP, 0, 0, 10, 10, NULL, NULL, Tk_GetHINSTANCE(), NULL); - - if (!tsdPtr->embeddedMenuHWND) { - Tcl_Panic("Failed to create the embedded menu window."); - } - TkCreateExitHandler(MenuExitHandler, (ClientData) NULL); SetDefaults(1); } - -/* - *---------------------------------------------------------------------- - * - * Tk_GetMenuHWND -- - * - * This function returns the HWND of a hidden menu Window that processes - * messages of a popup menu. This hidden menu window is used to handle - * either a dynamic popup menu in the same process or a pull-down menu of - * an embedded window in a different process. - * - * Results: - * Returns the HWND of the hidden menu Window. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -HWND -Tk_GetMenuHWND(tkwin) - Tk_Window tkwin; -{ - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); - TkMenuInit(); - return tsdPtr->embeddedMenuHWND; -} /* *---------------------------------------------------------------------- @@ -3199,6 +3215,7 @@ Tk_GetMenuHWND(tkwin) * TkpMenuThreadInit -- * * Sets up the thread-local hash tables used by the menu module. + * Assumes that TkpMenuInit has been called. * * Results: * None. @@ -3215,8 +3232,25 @@ TkpMenuThreadInit() ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); + tsdPtr->menuHWND = CreateWindow(MENU_CLASS_NAME, "MenuWindow", WS_POPUP, + 0, 0, 10, 10, NULL, NULL, Tk_GetHINSTANCE(), NULL); + + if (!tsdPtr->menuHWND) { + Tcl_Panic("Failed to create the menu window."); + } + + tsdPtr->embeddedMenuHWND = + CreateWindow(EMBEDDED_MENU_CLASS_NAME, "EmbeddedMenuWindow", + WS_POPUP, 0, 0, 10, 10, NULL, NULL, Tk_GetHINSTANCE(), NULL); + + if (!tsdPtr->embeddedMenuHWND) { + Tcl_Panic("Failed to create the embedded menu window."); + } + Tcl_InitHashTable(&tsdPtr->winMenuTable, TCL_ONE_WORD_KEYS); Tcl_InitHashTable(&tsdPtr->commandTable, TCL_ONE_WORD_KEYS); + + TkCreateThreadExitHandler(MenuThreadExitHandler, (ClientData) NULL); } /* |