| 1 | /* $Id: oleMenu.cpp,v 1.3 2000-09-17 10:31:06 davidr Exp $ */
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| 2 | /*
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| 3 | *
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| 4 | * Project Odin Software License can be found in LICENSE.TXT
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| 5 | *
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| 6 | */
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| 7 | /*
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| 8 | * OLEMENU functions.
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| 9 | *
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| 10 | * 4/9/99
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| 11 | *
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| 12 | * Copyright 1999 David J. Raison
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| 13 | *
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| 14 | * Some portions from Wine Implementation (2/9/99)
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| 15 | * Copyright 1995 Martin von Loewis
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| 16 | * Copyright 1999 Francis Beaudet
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| 17 | * Copyright 1999 Noel Borthwick
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| 18 | */
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| 19 |
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| 20 | #include "ole32.h"
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| 21 | #include "commctrl.h"
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| 22 | #include "oString.h"
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| 23 | #include <assert.h>
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| 24 |
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| 25 | // ======================================================================
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| 26 | // Local Data
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| 27 | // ======================================================================
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| 28 |
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| 29 | typedef struct tagOleMenuDescriptor /* OleMenuDescriptor */
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| 30 | {
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| 31 | HWND hwndFrame; /* The containers frame window */
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| 32 | HWND hwndActiveObject; /* The active objects window */
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| 33 | OLEMENUGROUPWIDTHS mgw; /* OLE menu group widths for the shared menu */
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| 34 | HMENU hmenuCombined; /* The combined menu */
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| 35 | BOOL bIsServerItem; /* True if the currently open popup belongs to the server */
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| 36 | } OleMenuDescriptor;
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| 37 |
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| 38 | typedef struct tagOleMenuHookItem /* OleMenu hook item in per thread hook list */
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| 39 | {
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| 40 | DWORD tid; /* Thread Id */
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| 41 | HANDLE hHeap; /* Heap this is allocated from */
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| 42 | HHOOK GetMsg_hHook; /* message hook for WH_GETMESSAGE */
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| 43 | HHOOK CallWndProc_hHook; /* message hook for WH_CALLWNDPROC */
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| 44 | } OleMenuHookItem;
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| 45 |
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| 46 | /*
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| 47 | * Dynamic pointer array of per thread message hooks (maintained by OleSetMenuDescriptor)
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| 48 | */
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| 49 | static HDPA OLEMenu_MsgHookDPA = NULL;
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| 50 |
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| 51 |
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| 52 | // ======================================================================
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| 53 | // Prototypes.
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| 54 | // ======================================================================
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| 55 | static void OLEUTL_ReadRegistryDWORDValue(HKEY regKey, DWORD* pdwValue);
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| 56 |
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| 57 | // These are the prototypes of the utility methods used to manage a shared menu
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| 58 | extern void OLEMenu_Initialize();
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| 59 | extern void OLEMenu_UnInitialize();
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| 60 |
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| 61 | BOOL OLEMenu_InstallHooks( DWORD tid );
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| 62 | BOOL OLEMenu_UnInstallHooks( DWORD tid );
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| 63 | OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid, INT *pixHook );
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| 64 | static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos );
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| 65 | BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor );
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| 66 | LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam);
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| 67 | LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam);
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| 68 |
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| 69 | // ======================================================================
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| 70 | // Public API's
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| 71 | // ======================================================================
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| 72 |
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| 73 | /*
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| 74 | * OleCreateMenuDescriptor [OLE32.97]
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| 75 | * Creates an OLE menu descriptor for OLE to use when dispatching
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| 76 | * menu messages and commands.
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| 77 | *
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| 78 | * PARAMS:
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| 79 | * hmenuCombined - Handle to the objects combined menu
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| 80 | * lpMenuWidths - Pointer to array of 6 LONG's indicating menus per group
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| 81 | *
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| 82 | */
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| 83 | HOLEMENU WIN32API OleCreateMenuDescriptor(
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| 84 | HMENU hmenuCombined,
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| 85 | LPOLEMENUGROUPWIDTHS lpMenuWidths)
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| 86 | {
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| 87 | HOLEMENU hOleMenu;
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| 88 | OleMenuDescriptor *pOleMenuDescriptor;
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| 89 | int i;
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| 90 |
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| 91 | if ( !hmenuCombined || !lpMenuWidths )
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| 92 | return 0;
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| 93 |
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| 94 | /* Create an OLE menu descriptor */
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| 95 | if ( !(hOleMenu = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
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| 96 | sizeof(OleMenuDescriptor) ) ) )
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| 97 | return 0;
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| 98 |
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| 99 | pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
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| 100 | if ( !pOleMenuDescriptor )
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| 101 | return 0;
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| 102 |
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| 103 | /* Initialize menu group widths and hmenu */
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| 104 | for ( i = 0; i < 6; i++ )
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| 105 | pOleMenuDescriptor->mgw.width[i] = lpMenuWidths->width[i];
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| 106 |
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| 107 | pOleMenuDescriptor->hmenuCombined = hmenuCombined;
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| 108 | pOleMenuDescriptor->bIsServerItem = FALSE;
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| 109 | GlobalUnlock( hOleMenu );
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| 110 |
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| 111 | return hOleMenu;
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| 112 | }
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| 113 |
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| 114 | /*
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| 115 | * OleDestroyMenuDescriptor [OLE32.99]
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| 116 | * Destroy the shared menu descriptor
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| 117 | */
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| 118 | HRESULT WIN32API OleDestroyMenuDescriptor(
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| 119 | HOLEMENU hmenuDescriptor)
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| 120 | {
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| 121 | if ( hmenuDescriptor )
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| 122 | GlobalFree( hmenuDescriptor );
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| 123 | return S_OK;
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| 124 | }
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| 125 |
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| 126 | /*
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| 127 | * OleSetMenuDescriptor [OLE32.129]
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| 128 | * Installs or removes OLE dispatching code for the containers frame window
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| 129 | * FIXME: The lpFrame and lpActiveObject parameters are currently ignored
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| 130 | * OLE should install context sensitive help F1 filtering for the app when
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| 131 | * these are non null.
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| 132 | *
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| 133 | * PARAMS:
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| 134 | * hOleMenu Handle to composite menu descriptor
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| 135 | * hwndFrame Handle to containers frame window
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| 136 | * hwndActiveObject Handle to objects in-place activation window
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| 137 | * lpFrame Pointer to IOleInPlaceFrame on containers window
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| 138 | * lpActiveObject Pointer to IOleInPlaceActiveObject on active in-place object
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| 139 | *
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| 140 | * RETURNS:
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| 141 | * S_OK - menu installed correctly
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| 142 | * E_FAIL, E_INVALIDARG, E_UNEXPECTED - failure
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| 143 | */
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| 144 | HRESULT WIN32API OleSetMenuDescriptor(
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| 145 | HOLEMENU hOleMenu,
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| 146 | HWND hwndFrame,
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| 147 | HWND hwndActiveObject,
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| 148 | LPOLEINPLACEFRAME lpFrame,
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| 149 | LPOLEINPLACEACTIVEOBJECT lpActiveObject)
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| 150 | {
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| 151 | OleMenuDescriptor *pOleMenuDescriptor = NULL;
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| 152 |
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| 153 | /* Check args */
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| 154 | if ( !hwndFrame || (hOleMenu && !hwndActiveObject) )
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| 155 | return E_INVALIDARG;
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| 156 |
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| 157 | if ( lpFrame || lpActiveObject )
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| 158 | {
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| 159 | dprintf(("OLE32: OleSetMenuDescriptor(%x, %x, %x, %p, %p), Context sensitive help filtering not implemented!\n",
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| 160 | (unsigned int)hOleMenu,
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| 161 | hwndFrame,
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| 162 | hwndActiveObject,
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| 163 | lpFrame,
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| 164 | lpActiveObject));
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| 165 | }
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| 166 |
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| 167 | /* Set up a message hook to intercept the containers frame window messages.
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| 168 | * The message filter is responsible for dispatching menu messages from the
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| 169 | * shared menu which are intended for the object.
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| 170 | */
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| 171 |
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| 172 | if ( hOleMenu ) /* Want to install dispatching code */
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| 173 | {
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| 174 | /* If OLEMenu hooks are already installed for this thread, fail
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| 175 | * Note: This effectively means that OleSetMenuDescriptor cannot
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| 176 | * be called twice in succession on the same frame window
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| 177 | * without first calling it with a null hOleMenu to uninstall */
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| 178 | if ( OLEMenu_IsHookInstalled( GetCurrentThreadId(), NULL ) )
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| 179 | return E_FAIL;
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| 180 |
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| 181 | /* Get the menu descriptor */
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| 182 | pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
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| 183 | if ( !pOleMenuDescriptor )
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| 184 | return E_UNEXPECTED;
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| 185 |
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| 186 | /* Update the menu descriptor */
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| 187 | pOleMenuDescriptor->hwndFrame = hwndFrame;
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| 188 | pOleMenuDescriptor->hwndActiveObject = hwndActiveObject;
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| 189 |
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| 190 | GlobalUnlock( hOleMenu );
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| 191 | pOleMenuDescriptor = NULL;
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| 192 |
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| 193 | /* Add a menu descriptor windows property to the frame window */
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| 194 | SetPropA( hwndFrame, "PROP_OLEMenuDescriptor", hOleMenu );
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| 195 |
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| 196 | /* Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC */
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| 197 | if ( !OLEMenu_InstallHooks( GetCurrentThreadId() ) )
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| 198 | return E_FAIL;
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| 199 | }
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| 200 | else /* Want to uninstall dispatching code */
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| 201 | {
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| 202 | /* Uninstall the hooks */
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| 203 | if ( !OLEMenu_UnInstallHooks( GetCurrentThreadId() ) )
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| 204 | return E_FAIL;
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| 205 |
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| 206 | /* Remove the menu descriptor property from the frame window */
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| 207 | RemovePropA( hwndFrame, "PROP_OLEMenuDescriptor" );
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| 208 | }
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| 209 |
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| 210 | return S_OK;
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| 211 | }
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| 212 |
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| 213 | /*
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| 214 | * OLEMenu_Initialize()
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| 215 | *
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| 216 | * Initializes the OLEMENU data structures.
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| 217 | */
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| 218 | extern void OLEMenu_Initialize()
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| 219 | {
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| 220 | dprintf(("OLE32: OLEMenu_Initialize"));
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| 221 |
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| 222 | /* Create a dynamic pointer array to store the hook handles */
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| 223 | if ( !OLEMenu_MsgHookDPA )
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| 224 | OLEMenu_MsgHookDPA = DPA_CreateEx( 2, GetProcessHeap() );
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| 225 | }
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| 226 |
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| 227 | /*
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| 228 | * OLEMenu_UnInitialize()
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| 229 | *
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| 230 | * Releases the OLEMENU data structures.
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| 231 | */
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| 232 | extern void OLEMenu_UnInitialize()
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| 233 | {
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| 234 | dprintf(("OLE32: OLEMenu_UnInitialize"));
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| 235 |
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| 236 | /* Release the hook table */
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| 237 | if ( OLEMenu_MsgHookDPA )
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| 238 | DPA_Destroy( OLEMenu_MsgHookDPA );
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| 239 |
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| 240 | OLEMenu_MsgHookDPA = NULL;
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| 241 | }
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| 242 |
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| 243 | // ======================================================================
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| 244 | // Private functions.
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| 245 | // ======================================================================
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| 246 |
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| 247 | /*
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| 248 | * Internal methods to manage the shared OLE menu in response to the
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| 249 | * OLE***MenuDescriptor API
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| 250 | */
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| 251 |
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| 252 | /*
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| 253 | * OLEMenu_InstallHooks
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| 254 | * Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
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| 255 | *
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| 256 | * RETURNS: TRUE if message hooks were succesfully installed
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| 257 | * FALSE on failure
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| 258 | */
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| 259 | BOOL OLEMenu_InstallHooks( DWORD tid )
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| 260 | {
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| 261 | OleMenuHookItem *pHookItem = NULL;
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| 262 |
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| 263 | if ( !OLEMenu_MsgHookDPA ) /* No hook table? Create one */
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| 264 | {
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| 265 | /* Create a dynamic pointer array to store the hook handles */
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| 266 | if ( !(OLEMenu_MsgHookDPA = DPA_CreateEx( 2, GetProcessHeap() )) )
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| 267 | return FALSE;
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| 268 | }
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| 269 |
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| 270 | /* Create an entry for the hook table */
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| 271 | if ( !(pHookItem = (OleMenuHookItem *)HeapAlloc(GetProcessHeap(), 0,
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| 272 | sizeof(OleMenuHookItem)) ) )
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| 273 | return FALSE;
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| 274 |
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| 275 | pHookItem->tid = tid;
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| 276 | pHookItem->hHeap = GetProcessHeap();
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| 277 |
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| 278 | /* Install a thread scope message hook for WH_GETMESSAGE */
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| 279 | pHookItem->GetMsg_hHook = SetWindowsHookExA( WH_GETMESSAGE, OLEMenu_GetMsgProc,
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| 280 | 0, GetCurrentThreadId() );
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| 281 | if ( !pHookItem->GetMsg_hHook )
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| 282 | goto CLEANUP;
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| 283 |
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| 284 | /* Install a thread scope message hook for WH_CALLWNDPROC */
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| 285 | pHookItem->CallWndProc_hHook = SetWindowsHookExA( WH_CALLWNDPROC, OLEMenu_CallWndProc,
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| 286 | 0, GetCurrentThreadId() );
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| 287 | if ( !pHookItem->CallWndProc_hHook )
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| 288 | goto CLEANUP;
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| 289 |
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| 290 | /* Insert the hook table entry */
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| 291 | if ( -1 == DPA_InsertPtr( OLEMenu_MsgHookDPA, 0, pHookItem ) )
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| 292 | goto CLEANUP;
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| 293 |
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| 294 | return TRUE;
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| 295 |
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| 296 | CLEANUP:
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| 297 | /* Unhook any hooks */
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| 298 | if ( pHookItem->GetMsg_hHook )
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| 299 | UnhookWindowsHookEx( pHookItem->GetMsg_hHook );
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| 300 | if ( pHookItem->CallWndProc_hHook )
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| 301 | UnhookWindowsHookEx( pHookItem->CallWndProc_hHook );
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| 302 | /* Release the hook table entry */
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| 303 | HeapFree(pHookItem->hHeap, 0, pHookItem );
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| 304 |
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| 305 | return FALSE;
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| 306 | }
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| 307 |
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| 308 | /*
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| 309 | * OLEMenu_UnInstallHooks
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| 310 | * UnInstall thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
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| 311 | *
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| 312 | * RETURNS: TRUE if message hooks were succesfully installed
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| 313 | * FALSE on failure
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| 314 | */
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| 315 | BOOL OLEMenu_UnInstallHooks( DWORD tid )
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| 316 | {
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| 317 | INT ixHook;
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| 318 | OleMenuHookItem *pHookItem = NULL;
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| 319 |
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| 320 | if ( !OLEMenu_MsgHookDPA ) /* No hooks set */
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| 321 | return TRUE;
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| 322 |
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| 323 | /* Lookup the hHook index for this tid */
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| 324 | if ( !OLEMenu_IsHookInstalled( tid , &ixHook ) )
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| 325 | return TRUE;
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| 326 |
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| 327 | /* Remove the hook entry from the table(the pointer itself is not deleted) */
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| 328 | if ( !( pHookItem = (OleMenuHookItem *)DPA_DeletePtr(OLEMenu_MsgHookDPA, ixHook) ) )
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| 329 | return FALSE;
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| 330 |
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| 331 | /* Uninstall the hooks installed for this thread */
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| 332 | if ( !UnhookWindowsHookEx( pHookItem->GetMsg_hHook ) )
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| 333 | goto CLEANUP;
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| 334 | if ( !UnhookWindowsHookEx( pHookItem->CallWndProc_hHook ) )
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| 335 | goto CLEANUP;
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| 336 |
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| 337 | /* Release the hook table entry */
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| 338 | HeapFree(pHookItem->hHeap, 0, pHookItem );
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| 339 |
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| 340 | return TRUE;
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| 341 |
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| 342 | CLEANUP:
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| 343 | /* Release the hook table entry */
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| 344 | if (pHookItem)
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| 345 | HeapFree(pHookItem->hHeap, 0, pHookItem );
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| 346 |
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| 347 | return FALSE;
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| 348 | }
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| 349 |
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| 350 | /*
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| 351 | * OLEMenu_IsHookInstalled
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| 352 | * Tests if OLEMenu hooks have been installed for a thread
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| 353 | *
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| 354 | * RETURNS: The pointer and index of the hook table entry for the tid
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| 355 | * NULL and -1 for the index if no hooks were installed for this thread
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| 356 | */
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| 357 | OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid, INT *pixHook )
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| 358 | {
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| 359 | INT ixHook;
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| 360 | OleMenuHookItem *pHookItem = NULL;
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| 361 |
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| 362 | if ( pixHook )
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| 363 | *pixHook = -1;
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| 364 |
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| 365 | if ( !OLEMenu_MsgHookDPA ) /* No hooks set */
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| 366 | return NULL;
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| 367 |
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| 368 | /* Do a simple linear search for an entry whose tid matches ours.
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| 369 | * We really need a map but efficiency is not a concern here. */
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| 370 | for( ixHook = 0; ; ixHook++ )
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| 371 | {
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| 372 | /* Retrieve the hook entry */
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| 373 | if ( !( pHookItem = (OleMenuHookItem *)DPA_GetPtr(OLEMenu_MsgHookDPA, ixHook) ) )
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| 374 | return NULL;
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| 375 |
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| 376 | if ( tid == pHookItem->tid )
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| 377 | {
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| 378 | if ( pixHook )
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| 379 | *pixHook = ixHook;
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| 380 | return pHookItem;
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| 381 | }
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| 382 | }
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| 383 |
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| 384 | return NULL;
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| 385 | }
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| 386 |
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| 387 | /*
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| 388 | * OLEMenu_FindMainMenuIndex
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| 389 | *
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| 390 | * Used by OLEMenu API to find the top level group a menu item belongs to.
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| 391 | * On success pnPos contains the index of the item in the top level menu group
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| 392 | *
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| 393 | * RETURNS: TRUE if the ID was found, FALSE on failure
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| 394 | */
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| 395 | static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos )
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| 396 | {
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| 397 | UINT i, nItems;
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| 398 |
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| 399 | nItems = GetMenuItemCount( hMainMenu );
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| 400 |
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| 401 | for (i = 0; i < nItems; i++)
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| 402 | {
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| 403 | HMENU hsubmenu;
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| 404 |
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| 405 | /* Is the current item a submenu? */
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| 406 | if ( (hsubmenu = GetSubMenu(hMainMenu, i)) != NULL)
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| 407 | {
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| 408 | /* If the handle is the same we're done */
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| 409 | if ( hsubmenu == hPopupMenu )
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| 410 | {
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| 411 | if (pnPos)
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| 412 | *pnPos = i;
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| 413 | return TRUE;
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| 414 | }
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| 415 | /* Recursively search without updating pnPos */
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| 416 | else if ( OLEMenu_FindMainMenuIndex( hsubmenu, hPopupMenu, NULL ) )
|
|---|
| 417 | {
|
|---|
| 418 | if (pnPos)
|
|---|
| 419 | *pnPos = i;
|
|---|
| 420 | return TRUE;
|
|---|
| 421 | }
|
|---|
| 422 | }
|
|---|
| 423 | }
|
|---|
| 424 |
|
|---|
| 425 | return FALSE;
|
|---|
| 426 | }
|
|---|
| 427 |
|
|---|
| 428 | /*
|
|---|
| 429 | * OLEMenu_SetIsServerMenu
|
|---|
| 430 | *
|
|---|
| 431 | * Checks whether a popup menu belongs to a shared menu group which is
|
|---|
| 432 | * owned by the server, and sets the menu descriptor state accordingly.
|
|---|
| 433 | * All menu messages from these groups should be routed to the server.
|
|---|
| 434 | *
|
|---|
| 435 | * RETURNS: TRUE if the popup menu is part of a server owned group
|
|---|
| 436 | * FASE if the popup menu is part of a container owned group
|
|---|
| 437 | */
|
|---|
| 438 | BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor )
|
|---|
| 439 | {
|
|---|
| 440 | UINT nPos = 0, nWidth, i;
|
|---|
| 441 |
|
|---|
| 442 | pOleMenuDescriptor->bIsServerItem = FALSE;
|
|---|
| 443 |
|
|---|
| 444 | /* Don't bother searching if the popup is the combined menu itself */
|
|---|
| 445 | if ( hmenu == pOleMenuDescriptor->hmenuCombined )
|
|---|
| 446 | return FALSE;
|
|---|
| 447 |
|
|---|
| 448 | /* Find the menu item index in the shared OLE menu that this item belongs to */
|
|---|
| 449 | if ( !OLEMenu_FindMainMenuIndex( pOleMenuDescriptor->hmenuCombined, hmenu, &nPos ) )
|
|---|
| 450 | return FALSE;
|
|---|
| 451 |
|
|---|
| 452 | /* The group widths array has counts for the number of elements
|
|---|
| 453 | * in the groups File, Edit, Container, Object, Window, Help.
|
|---|
| 454 | * The Edit, Object & Help groups belong to the server object
|
|---|
| 455 | * and the other three belong to the container.
|
|---|
| 456 | * Loop thru the group widths and locate the group we are a member of.
|
|---|
| 457 | */
|
|---|
| 458 | for ( i = 0, nWidth = 0; i < 6; i++ )
|
|---|
| 459 | {
|
|---|
| 460 | nWidth += pOleMenuDescriptor->mgw.width[i];
|
|---|
| 461 | if ( nPos < nWidth )
|
|---|
| 462 | {
|
|---|
| 463 | /* Odd elements are server menu widths */
|
|---|
| 464 | pOleMenuDescriptor->bIsServerItem = (i%2) ? TRUE : FALSE;
|
|---|
| 465 | break;
|
|---|
| 466 | }
|
|---|
| 467 | }
|
|---|
| 468 |
|
|---|
| 469 | return pOleMenuDescriptor->bIsServerItem;
|
|---|
| 470 | }
|
|---|
| 471 |
|
|---|
| 472 | /*
|
|---|
| 473 | * OLEMenu_CallWndProc
|
|---|
| 474 | * Thread scope WH_CALLWNDPROC hook proc filter function (callback)
|
|---|
| 475 | * This is invoked from a message hook installed in OleSetMenuDescriptor.
|
|---|
| 476 | */
|
|---|
| 477 | LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam)
|
|---|
| 478 | {
|
|---|
| 479 | LPCWPSTRUCT pMsg = NULL;
|
|---|
| 480 | HOLEMENU hOleMenu = 0;
|
|---|
| 481 | OleMenuDescriptor *pOleMenuDescriptor = NULL;
|
|---|
| 482 | OleMenuHookItem *pHookItem = NULL;
|
|---|
| 483 | WORD fuFlags;
|
|---|
| 484 |
|
|---|
| 485 | dprintf(("OLE32: OLEMenu_CallWndProc %i, %04x, %08x", code, wParam, (unsigned)lParam));
|
|---|
| 486 |
|
|---|
| 487 | /* Check if we're being asked to process the message */
|
|---|
| 488 | if ( HC_ACTION != code )
|
|---|
| 489 | goto NEXTHOOK;
|
|---|
| 490 |
|
|---|
| 491 | /* Retrieve the current message being dispatched from lParam */
|
|---|
| 492 | pMsg = (LPCWPSTRUCT)lParam;
|
|---|
| 493 |
|
|---|
| 494 | /* Check if the message is destined for a window we are interested in:
|
|---|
| 495 | * If the window has an OLEMenu property we may need to dispatch
|
|---|
| 496 | * the menu message to its active objects window instead. */
|
|---|
| 497 |
|
|---|
| 498 | hOleMenu = (HOLEMENU)GetPropA( pMsg->hwnd, "PROP_OLEMenuDescriptor" );
|
|---|
| 499 | if ( !hOleMenu )
|
|---|
| 500 | goto NEXTHOOK;
|
|---|
| 501 |
|
|---|
| 502 | /* Get the menu descriptor */
|
|---|
| 503 | pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
|
|---|
| 504 | if ( !pOleMenuDescriptor ) /* Bad descriptor! */
|
|---|
| 505 | goto NEXTHOOK;
|
|---|
| 506 |
|
|---|
| 507 | /* Process menu messages */
|
|---|
| 508 | switch( pMsg->message )
|
|---|
| 509 | {
|
|---|
| 510 | case WM_INITMENU:
|
|---|
| 511 | {
|
|---|
| 512 | /* Reset the menu descriptor state */
|
|---|
| 513 | pOleMenuDescriptor->bIsServerItem = FALSE;
|
|---|
| 514 |
|
|---|
| 515 | /* Send this message to the server as well */
|
|---|
| 516 | SendMessageA( pOleMenuDescriptor->hwndActiveObject,
|
|---|
| 517 | pMsg->message, pMsg->wParam, pMsg->lParam );
|
|---|
| 518 | goto NEXTHOOK;
|
|---|
| 519 | }
|
|---|
| 520 |
|
|---|
| 521 | case WM_INITMENUPOPUP:
|
|---|
| 522 | {
|
|---|
| 523 | /* Save the state for whether this is a server owned menu */
|
|---|
| 524 | OLEMenu_SetIsServerMenu( (HMENU)pMsg->wParam, pOleMenuDescriptor );
|
|---|
| 525 | break;
|
|---|
| 526 | }
|
|---|
| 527 |
|
|---|
| 528 | case WM_MENUSELECT:
|
|---|
| 529 | {
|
|---|
| 530 | fuFlags = HIWORD(pMsg->wParam); /* Get flags */
|
|---|
| 531 | if ( fuFlags & MF_SYSMENU )
|
|---|
| 532 | goto NEXTHOOK;
|
|---|
| 533 |
|
|---|
| 534 | /* Save the state for whether this is a server owned popup menu */
|
|---|
| 535 | else if ( fuFlags & MF_POPUP )
|
|---|
| 536 | OLEMenu_SetIsServerMenu( (HMENU)pMsg->lParam, pOleMenuDescriptor );
|
|---|
| 537 |
|
|---|
| 538 | break;
|
|---|
| 539 | }
|
|---|
| 540 |
|
|---|
| 541 | case WM_DRAWITEM:
|
|---|
| 542 | {
|
|---|
| 543 | LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT) pMsg->lParam;
|
|---|
| 544 | if ( pMsg->wParam != 0 || lpdis->CtlType != ODT_MENU )
|
|---|
| 545 | goto NEXTHOOK; /* Not a menu message */
|
|---|
| 546 |
|
|---|
| 547 | break;
|
|---|
| 548 | }
|
|---|
| 549 |
|
|---|
| 550 | default:
|
|---|
| 551 | goto NEXTHOOK;
|
|---|
| 552 | }
|
|---|
| 553 |
|
|---|
| 554 | /* If the message was for the server dispatch it accordingly */
|
|---|
| 555 | if ( pOleMenuDescriptor->bIsServerItem )
|
|---|
| 556 | {
|
|---|
| 557 | SendMessageA( pOleMenuDescriptor->hwndActiveObject,
|
|---|
| 558 | pMsg->message, pMsg->wParam, pMsg->lParam );
|
|---|
| 559 | }
|
|---|
| 560 |
|
|---|
| 561 | NEXTHOOK:
|
|---|
| 562 | if ( pOleMenuDescriptor )
|
|---|
| 563 | GlobalUnlock( hOleMenu );
|
|---|
| 564 |
|
|---|
| 565 | /* Lookup the hook item for the current thread */
|
|---|
| 566 | if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId(), NULL ) ) )
|
|---|
| 567 | {
|
|---|
| 568 | /* This should never fail!! */
|
|---|
| 569 | dprintf(("Warning: Could not retrieve hHook for current thread!"));
|
|---|
| 570 | return 0;
|
|---|
| 571 | }
|
|---|
| 572 |
|
|---|
| 573 | /* Pass on the message to the next hooker */
|
|---|
| 574 | return CallNextHookEx( pHookItem->CallWndProc_hHook, code, wParam, lParam );
|
|---|
| 575 | }
|
|---|
| 576 |
|
|---|
| 577 | /*
|
|---|
| 578 | * OLEMenu_GetMsgProc
|
|---|
| 579 | * Thread scope WH_GETMESSAGE hook proc filter function (callback)
|
|---|
| 580 | * This is invoked from a message hook installed in OleSetMenuDescriptor.
|
|---|
| 581 | */
|
|---|
| 582 | LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam)
|
|---|
| 583 | {
|
|---|
| 584 | LPMSG pMsg = NULL;
|
|---|
| 585 | HOLEMENU hOleMenu = 0;
|
|---|
| 586 | OleMenuDescriptor *pOleMenuDescriptor = NULL;
|
|---|
| 587 | OleMenuHookItem *pHookItem = NULL;
|
|---|
| 588 | WORD wCode;
|
|---|
| 589 |
|
|---|
| 590 | dprintf(("OLE32: OLEMenu_GetMsgProc %i, %04x, %08x", code, wParam, (unsigned)lParam ));
|
|---|
| 591 |
|
|---|
| 592 | /* Check if we're being asked to process a messages */
|
|---|
| 593 | if ( HC_ACTION != code )
|
|---|
| 594 | goto NEXTHOOK;
|
|---|
| 595 |
|
|---|
| 596 | /* Retrieve the current message being dispatched from lParam */
|
|---|
| 597 | pMsg = (LPMSG)lParam;
|
|---|
| 598 |
|
|---|
| 599 | /* Check if the message is destined for a window we are interested in:
|
|---|
| 600 | * If the window has an OLEMenu property we may need to dispatch
|
|---|
| 601 | * the menu message to its active objects window instead. */
|
|---|
| 602 |
|
|---|
| 603 | hOleMenu = (HOLEMENU)GetPropA( pMsg->hwnd, "PROP_OLEMenuDescriptor" );
|
|---|
| 604 | if ( !hOleMenu )
|
|---|
| 605 | goto NEXTHOOK;
|
|---|
| 606 |
|
|---|
| 607 | /* Process menu messages */
|
|---|
| 608 | switch( pMsg->message )
|
|---|
| 609 | {
|
|---|
| 610 | case WM_COMMAND:
|
|---|
| 611 | {
|
|---|
| 612 | wCode = HIWORD(pMsg->wParam); /* Get notification code */
|
|---|
| 613 | if ( wCode )
|
|---|
| 614 | goto NEXTHOOK; /* Not a menu message */
|
|---|
| 615 | break;
|
|---|
| 616 | }
|
|---|
| 617 | default:
|
|---|
| 618 | goto NEXTHOOK;
|
|---|
| 619 | }
|
|---|
| 620 |
|
|---|
| 621 | /* Get the menu descriptor */
|
|---|
| 622 | pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
|
|---|
| 623 | if ( !pOleMenuDescriptor ) /* Bad descriptor! */
|
|---|
| 624 | goto NEXTHOOK;
|
|---|
| 625 |
|
|---|
| 626 | /* If the message was for the server dispatch it accordingly */
|
|---|
| 627 | if ( pOleMenuDescriptor->bIsServerItem )
|
|---|
| 628 | {
|
|---|
| 629 | /* Change the hWnd in the message to the active objects hWnd.
|
|---|
| 630 | * The message loop which reads this message will automatically
|
|---|
| 631 | * dispatch it to the embedded objects window. */
|
|---|
| 632 | pMsg->hwnd = pOleMenuDescriptor->hwndActiveObject;
|
|---|
| 633 | }
|
|---|
| 634 |
|
|---|
| 635 | NEXTHOOK:
|
|---|
| 636 | if ( pOleMenuDescriptor )
|
|---|
| 637 | GlobalUnlock( hOleMenu );
|
|---|
| 638 |
|
|---|
| 639 | /* Lookup the hook item for the current thread */
|
|---|
| 640 | if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId(), NULL ) ) )
|
|---|
| 641 | {
|
|---|
| 642 | /* This should never fail!! */
|
|---|
| 643 | dprintf(("Warning: Could not retrieve hHook for current thread!\n" ));
|
|---|
| 644 | return FALSE;
|
|---|
| 645 | }
|
|---|
| 646 |
|
|---|
| 647 | /* Pass on the message to the next hooker */
|
|---|
| 648 | return CallNextHookEx( pHookItem->GetMsg_hHook, code, wParam, lParam );
|
|---|
| 649 | }
|
|---|
| 650 |
|
|---|