mirror of
https://github.com/reactos/reactos.git
synced 2024-12-27 09:34:43 +00:00
24fb46c405
For simplicity and short typing. JIRA issue: CORE-19469 - Replace "virtual HRESULT STDMETHODCALLTYPE m" with "STDMETHOD(m)" (m is a method name). - Replace "virtual t STDMETHODCALLTYPE m" with "STDMETHOD_(t, m)" (t is a type. m is a method name). - Use "override" keyword as possible.
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
/*
|
|
* PROJECT: ReactOS Compatibility Layer Shell Extension
|
|
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
|
|
* PURPOSE: CLayerStringList implementation
|
|
* COPYRIGHT: Copyright 2015-2018 Mark Jansen (mark.jansen@reactos.org)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/* TODO: Use HSDB instead of PDB */
|
|
class CLayerStringList :
|
|
public CComObjectRootEx<CComMultiThreadModelNoCS>,
|
|
public IEnumString
|
|
{
|
|
public:
|
|
CLayerStringList()
|
|
:m_root(TAGID_NULL), m_layer(TAGID_NULL)
|
|
{
|
|
WCHAR buf[MAX_PATH];
|
|
SdbGetAppPatchDir(NULL, buf, MAX_PATH);
|
|
StringCchCatW(buf, _countof(buf), L"\\sysmain.sdb");
|
|
m_db = SdbOpenDatabase(buf, DOS_PATH);
|
|
Reset();
|
|
}
|
|
|
|
~CLayerStringList()
|
|
{
|
|
SdbCloseDatabase(m_db);
|
|
}
|
|
|
|
STDMETHOD(Next)(ULONG celt, LPOLESTR *rgelt, ULONG *pceltFetched) override
|
|
{
|
|
if (pceltFetched)
|
|
*pceltFetched = 0;
|
|
|
|
while (celt && m_layer)
|
|
{
|
|
TAGID nameid = SdbFindFirstTag(m_db, m_layer, TAG_NAME);
|
|
if (nameid)
|
|
{
|
|
LPWSTR name = SdbGetStringTagPtr(m_db, nameid);
|
|
if (name && !IsBuiltinLayer(name))
|
|
{
|
|
ULONG Size = wcslen(name) + 1;
|
|
|
|
*rgelt = (LPOLESTR)::CoTaskMemAlloc(Size * sizeof(WCHAR));
|
|
StringCchCopyW(*rgelt, Size, name);
|
|
|
|
if (pceltFetched)
|
|
(*pceltFetched)++;
|
|
|
|
celt--;
|
|
rgelt++;
|
|
}
|
|
}
|
|
m_layer = SdbFindNextTag(m_db, m_root, m_layer);
|
|
}
|
|
return celt ? S_FALSE : S_OK;
|
|
}
|
|
|
|
STDMETHOD(Skip)(ULONG celt) override
|
|
{
|
|
while (m_layer && celt)
|
|
{
|
|
m_layer = SdbFindNextTag(m_db, m_root, m_layer);
|
|
--celt;
|
|
}
|
|
return celt ? S_FALSE : S_OK;
|
|
}
|
|
|
|
STDMETHOD(Reset)() override
|
|
{
|
|
m_root = m_layer = TAGID_NULL;
|
|
if (m_db)
|
|
{
|
|
m_root = SdbFindFirstTag(m_db, TAGID_ROOT, TAG_DATABASE);
|
|
if (m_root != TAGID_NULL)
|
|
{
|
|
m_layer = SdbFindFirstTag(m_db, m_root, TAG_LAYER);
|
|
return S_OK;
|
|
}
|
|
}
|
|
return E_FAIL;
|
|
}
|
|
|
|
STDMETHOD(Clone)(IEnumString **ppenum) override
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
protected:
|
|
PDB m_db;
|
|
TAGID m_root;
|
|
TAGID m_layer;
|
|
|
|
public:
|
|
BEGIN_COM_MAP(CLayerStringList)
|
|
COM_INTERFACE_ENTRY_IID(IID_IEnumString, IEnumString)
|
|
END_COM_MAP()
|
|
};
|
|
|