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[SHELL32] cache entries of "New" menu

Browse source 
CORE-10439 

svn path=/trunk/; revision=71980
This commit is contained in:
Christoph von Wittich 2016-07-23 12:31:30 +00:00
parent 73e04c0cd1
commit 7541633310
2 changed files with 162 additions and 54 deletions
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114
reactos/dll/win32/shell32/CNewMenu.cpp
View file

@ -163,22 +163,109 @@ CNewMenu::SHELLNEW_ITEM *CNewMenu::LoadItem(LPCWSTR pwszExt)
}
BOOL
CNewMenu::LoadAllItems()
CNewMenu::CacheItems()
{
HKEY hKey;
DWORD dwSize = 0;
DWORD dwIndex = 0;
LPWSTR lpValue;
LPWSTR lpValues;
WCHAR wszName[MAX_PATH];
SHELLNEW_ITEM *pNewItem;
SHELLNEW_ITEM *pCurItem = NULL;
/* If there are any unload them */
UnloadAllItems();
/* Enumerate all extesions */
/* Enumerate all extensions */
while (RegEnumKeyW(HKEY_CLASSES_ROOT, dwIndex++, wszName, _countof(wszName)) == ERROR_SUCCESS)
{
if (wszName[0] != L'.')
continue;
pNewItem = LoadItem(wszName);
if (pNewItem)
{
dwSize += wcslen(wszName) + 1;
if (wcsicmp(pNewItem->pwszExt, L".lnk") == 0)
{
/* Link handler */
m_pLinkItem = pNewItem;
}
else
{
/* Add at the end of list */
if (pCurItem)
{
pCurItem->pNext = pNewItem;
pCurItem = pNewItem;
}
else
pCurItem = m_pItems = pNewItem;
}
}
}
dwSize++;
lpValues = (LPWSTR) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, dwSize * sizeof(WCHAR));
if (!lpValues)
return FALSE;
lpValue = lpValues;
pCurItem = m_pItems;
while (pCurItem)
{
memcpy(lpValue, pCurItem->pwszExt, (wcslen(pCurItem->pwszExt) + 1) * sizeof(WCHAR));
lpValue += wcslen(pCurItem->pwszExt) + 1;
pCurItem = pCurItem->pNext;
}
if (RegCreateKeyEx(HKEY_CURRENT_USER, ShellNewKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL) != ERROR_SUCCESS)
{
HeapFree(GetProcessHeap(), 0, lpValues);
return FALSE;
}
if (RegSetValueExW(hKey, L"Classes", NULL, REG_MULTI_SZ, (LPBYTE)lpValues, dwSize) != ERROR_SUCCESS)
{
HeapFree(GetProcessHeap(), 0, lpValues);
return FALSE;
}
HeapFree(GetProcessHeap(), 0, lpValues);
RegCloseKey(hKey);
return TRUE;
}
BOOL
CNewMenu::LoadCachedItems()
{
LPWSTR wszName;
LPWSTR lpValues;
DWORD dwSize;
HKEY hKey;
SHELLNEW_ITEM *pNewItem;
SHELLNEW_ITEM *pCurItem = NULL;
if (RegOpenKeyExW(HKEY_CURRENT_USER, ShellNewKey, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
return FALSE;
if (RegQueryValueExW(hKey, L"Classes", NULL, NULL, NULL, &dwSize) != ERROR_SUCCESS)
return FALSE;
lpValues = (LPWSTR) HeapAlloc(GetProcessHeap(), 0, dwSize);
if (!lpValues)
return FALSE;
if (RegQueryValueExW(hKey, L"Classes", NULL, NULL, (LPBYTE)lpValues, &dwSize) != ERROR_SUCCESS)
{
HeapFree(GetProcessHeap(), 0, lpValues);
return FALSE;
}
wszName = lpValues;
for (; '\0' != *wszName; wszName += wcslen(wszName) + 1)
{
pNewItem = LoadItem(wszName);
if (pNewItem)
{
@ -201,6 +288,23 @@ CNewMenu::LoadAllItems()
}
}
HeapFree(GetProcessHeap(), 0, lpValues);
RegCloseKey(hKey);
return TRUE;
}
BOOL
CNewMenu::LoadAllItems()
{
/* If there are any unload them */
UnloadAllItems();
if (!LoadCachedItems())
{
CacheItems();
}
if (!m_pLinkItem)
{
m_pLinkItem = static_cast<SHELLNEW_ITEM *>(HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SHELLNEW_ITEM)));

4
reactos/dll/win32/shell32/CNewMenu.h
View file

@ -23,6 +23,8 @@
#ifndef _SHV_ITEM_NEW_H_
#define _SHV_ITEM_NEW_H_
const WCHAR ShellNewKey[] = L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Discardable\\PostSetup\\ShellNew";
class CNewMenu :
public CComCoClass<CNewMenu, &CLSID_NewMenu>,
public CComObjectRootEx<CComMultiThreadModelNoCS>,
@ -63,6 +65,8 @@ private:
SHELLNEW_ITEM *LoadItem(LPCWSTR pwszExt);
void UnloadItem(SHELLNEW_ITEM *pItem);
void UnloadAllItems();
BOOL CacheItems();
BOOL LoadCachedItems();
BOOL LoadAllItems();
UINT InsertShellNewItems(HMENU hMenu, UINT idFirst, UINT idMenu);
SHELLNEW_ITEM *FindItemFromIdOffset(UINT IdOffset);