243 lines
7.8 KiB
C++
243 lines
7.8 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1997.
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//
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// File: C M D T A B L E . C P P
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//
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// Contents: Command-table code -- determines which menu options are
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// available by the selection count, among other criteria
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//
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// Notes:
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//
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// Author: jeffspr 28 Jan 1998
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//
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//----------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include "upsres.h" // Folder resource IDs
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#include "cmdtable.h" // Header for this file
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// Enable this if we have checked items
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//
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// #define CHECKED_ITEMS_PRESENT 1
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//---[ Prototypes ]-----------------------------------------------------------
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VOID DoMenuItemExceptionLoop(
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LPCITEMIDLIST * apidlSelected,
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DWORD cPidl);
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VOID DoMenuItemCheckLoop(VOID);
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COMMANDTABLEENTRY g_cteFolderCommands[] =
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{
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// command id
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// | valid when 0 items selected
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// | |
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// | | valid when multiple items selected
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// | | | command is currently enabled
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// | | | | new state (temp)
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// | | | | |
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// | | | | |
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// | | | | |
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// | | | | |
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// v v v v v
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//
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{ CMIDM_CREATE_SHORTCUT, false, false, true, true },
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{ SFVIDM_FILE_LINK, false, false, true, true },
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{ CMIDM_DELETE, false, false, false, true },
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{ SFVIDM_FILE_DELETE, false, false, false, true },
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{ CMIDM_RENAME, false, false, true, true },
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{ SFVIDM_FILE_RENAME, false, false, true, true },
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{ CMIDM_PROPERTIES, false, false, true, true },
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{ SFVIDM_FILE_PROPERTIES, false, false, true, true },
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{ CMIDM_ARRANGE_BY_NAME, true, true, true, true },
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{ CMIDM_ARRANGE_BY_URL, true, true, true, true },
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{ CMIDM_INVOKE, false, false, true, true }
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};
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const DWORD g_nFolderCommandCount = celems(g_cteFolderCommands);
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//+---------------------------------------------------------------------------
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//
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// Function: HrEnableOrDisableMenuItems
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//
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// Purpose: Enable, disable, and or check/uncheck menu items depending
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// on the current selection count, as well as exceptions for
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// the type and state of the connections themselves
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//
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// Arguments:
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// hwnd [in] Our window handle
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// apidlSelected [in] Currently selected objects
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// cPidl [in] Number selected
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// hmenu [in] Our command menu handle
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// idCmdFirst [in] First valid command
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//
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// Returns:
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//
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// Author: jeffspr 2 Feb 1998
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//
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// Notes:
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//
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HRESULT HrEnableOrDisableMenuItems(
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HWND hwnd,
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LPCITEMIDLIST * apidlSelected,
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DWORD cPidl,
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HMENU hmenu,
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UINT idCmdFirst)
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{
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HRESULT hr = S_OK;
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DWORD dwLoop = 0;
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// Loop through, and set the new state, based on the selection
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// count compared to the flags for 0-select and multi-select
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//
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for (dwLoop = 0; dwLoop < g_nFolderCommandCount; dwLoop++)
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{
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// If nothing is selected, then check the current state, and
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// if different, adjust
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//
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if (cPidl == 0)
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{
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g_cteFolderCommands[dwLoop].fNewState =
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g_cteFolderCommands[dwLoop].fValidOnZero;
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}
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else
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{
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// If singly-selected, then by default, we're always on.
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//
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if (cPidl == 1)
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{
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g_cteFolderCommands[dwLoop].fNewState =
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g_cteFolderCommands[dwLoop].fValidOnSingle;
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}
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else
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{
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// Multi-selected
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//
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g_cteFolderCommands[dwLoop].fNewState =
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g_cteFolderCommands[dwLoop].fValidOnMultiple;
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}
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}
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}
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for (dwLoop = 0; dwLoop < g_nFolderCommandCount; dwLoop++)
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{
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DWORD dwCommandId = 0;
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switch(g_cteFolderCommands[dwLoop].iCommandId)
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{
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case SFVIDM_FILE_DELETE:
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case SFVIDM_FILE_RENAME:
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case SFVIDM_FILE_LINK:
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case SFVIDM_FILE_PROPERTIES:
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dwCommandId = g_cteFolderCommands[dwLoop].iCommandId;
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break;
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default:
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dwCommandId = g_cteFolderCommands[dwLoop].iCommandId +
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idCmdFirst - CMIDM_FIRST;
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break;
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}
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// Enable or disable the menu item, as appopriate
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//
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EnableMenuItem(hmenu, dwCommandId,
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g_cteFolderCommands[dwLoop].fNewState ?
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MF_ENABLED | MF_BYCOMMAND : // enable
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MF_GRAYED | MF_BYCOMMAND); // disable
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}
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TraceHr(ttidShellFolder, FAL, hr, FALSE, "HrEnableOrDisableMenuItems");
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return hr;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: DoMenuItemExceptionLoop
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//
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// Purpose: Check for various menu item exceptions.
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//
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// Arguments:
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// apidlSelected [in] Selected items
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// cPidl [in] Count of selected items
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//
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// Returns:
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//
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// Author: jeffspr 26 Feb 1998
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//
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// Notes:
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//
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VOID DoMenuItemExceptionLoop(
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LPCITEMIDLIST * apidlSelected,
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DWORD cPidl)
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{
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DWORD dwLoop = 0;
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DWORD dwObjectLoop = 0;
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bool fEnableDelete = false; // For now, this is ALWAYS disabled (jeffspr)
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bool fEnableRename = true;
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if (cPidl)
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{
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// Loop through each of the selected objects
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//
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for (dwObjectLoop = 0; dwObjectLoop < cPidl; dwObjectLoop++)
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{
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// Validate the pidls
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//
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PUPNPDEVICEFOLDPIDL pudfp = NULL;
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if (!(apidlSelected[dwObjectLoop]) ||
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ILIsEmpty(apidlSelected[dwObjectLoop]))
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{
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AssertSz(FALSE, "Bogus pidl array in DoMenuItemExceptionLoop (status)");
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}
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else
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{
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pudfp = ConvertToUPnPDevicePIDL(apidlSelected[dwObjectLoop]);
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}
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if (pudfp)
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{
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// Loop through the commands
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//
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for (dwLoop = 0; dwLoop < g_nFolderCommandCount; dwLoop++)
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{
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// Only allow items to be changed to ENABLED states when they're
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// previously DISABLED
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//
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if (g_cteFolderCommands[dwLoop].fNewState)
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{
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}
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}
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}
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}
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// Loop through the commands, and disable the commands, if appropriate
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//
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for (dwLoop = 0; dwLoop < g_nFolderCommandCount; dwLoop++)
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{
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switch(g_cteFolderCommands[dwLoop].iCommandId)
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{
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case CMIDM_DELETE:
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case SFVIDM_FILE_DELETE:
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g_cteFolderCommands[dwLoop].fNewState = fEnableDelete;
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break;
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case CMIDM_RENAME:
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case SFVIDM_FILE_RENAME:
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g_cteFolderCommands[dwLoop].fNewState = fEnableRename;
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break;
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default:
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break;
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}
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}
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}
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}
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