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Reference:
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=338799bf8bf98698f3e4c…
commit 338799bf8bf98698f3e4c1c2b885d724a9a929da
Author: Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Fri Feb 16 20:00:08 2018 +0900
Commit: Ged Murphy <gedmurphy(a)reactos.org>
CommitDate: Fri Feb 16 11:00:08 2018 +0000
improve SHGetFileInfo (#118)
This patch reduces failures of SHGetFileInfo function. CORE-7159
* improve WideByteToWideChar calls
* fix bugs related to file attributes and SHGFI_EXETYPE
* SHGFI_USEFILEATTRIBUTES and SHGFI_ICON fix
* s/sizeof(temppsfi)/0/
---
dll/win32/shell32/wine/shell32_main.c | 81 +++++++++++++++++++++--------------
1 file changed, 49 insertions(+), 32 deletions(-)
diff --git a/dll/win32/shell32/wine/shell32_main.c
b/dll/win32/shell32/wine/shell32_main.c
index b5638f0582..e64ef7f6fb 100644
--- a/dll/win32/shell32/wine/shell32_main.c
+++ b/dll/win32/shell32/wine/shell32_main.c
@@ -3,6 +3,7 @@
*
* Copyright 1998 Marcus Meissner
* Copyright 1998 Juergen Schmied (jsch) * <juergen.schmied(a)metronet.de>
+ * Copyright 2017 Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -433,7 +434,7 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
{
psfi->szDisplayName[0] = '\0';
psfi->szTypeName[0] = '\0';
- psfi->iIcon = 0;
+ psfi->hIcon = NULL;
}
if (!(flags & SHGFI_PIDL))
@@ -449,12 +450,24 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD
dwFileAttributes,
lstrcpynW(szFullPath, path, MAX_PATH);
}
}
+ else
+ {
+ SHGetPathFromIDListW((LPITEMIDLIST)path, szFullPath);
+ }
if (flags & SHGFI_EXETYPE)
{
- if (flags != SHGFI_EXETYPE)
- return 0;
- return shgfi_get_exe_type(szFullPath);
+ if (!(flags & SHGFI_SYSICONINDEX))
+ {
+ if (flags & SHGFI_USEFILEATTRIBUTES)
+ {
+ return TRUE;
+ }
+ else if (GetFileAttributesW(szFullPath) != INVALID_FILE_ATTRIBUTES)
+ {
+ return shgfi_get_exe_type(szFullPath);
+ }
+ }
}
/*
@@ -488,6 +501,8 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
(LPCITEMIDLIST*)&pidlLast );
if (SUCCEEDED(hr))
pidlLast = ILClone(pidlLast);
+ else
+ hr = S_OK;
ILFree(pidl);
}
else
@@ -505,8 +520,18 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD
dwFileAttributes,
psfi->dwAttributes = 0xffffffff;
}
if (psfParent)
- IShellFolder_GetAttributesOf( psfParent, 1, (LPCITEMIDLIST*)&pidlLast,
- &(psfi->dwAttributes) );
+ {
+ IShellFolder_GetAttributesOf(psfParent, 1, (LPCITEMIDLIST*)&pidlLast,
+ &(psfi->dwAttributes));
+ }
+ }
+
+ if (flags & SHGFI_USEFILEATTRIBUTES)
+ {
+ if (flags & SHGFI_ICON)
+ {
+ psfi->dwAttributes = 0;
+ }
}
/* get the displayname */
@@ -516,7 +541,7 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
{
lstrcpyW (psfi->szDisplayName, PathFindFileNameW(szFullPath));
}
- else
+ else if (psfParent)
{
STRRET str;
hr = IShellFolder_GetDisplayNameOf( psfParent, pidlLast,
@@ -618,7 +643,7 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
ret = FALSE;
}
}
- else
+ else if (psfParent)
{
hr = IShellFolder_GetUIObjectOf(psfParent, 0, 1,
(LPCITEMIDLIST*)&pidlLast, &IID_IExtractIconW,
@@ -694,7 +719,7 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
}
}
}
- else
+ else if (psfParent)
{
if (!(PidlToSicIndex(psfParent, pidlLast, !(flags & SHGFI_SMALLICON),
uGilFlags, &(psfi->iIcon))))
@@ -769,33 +794,25 @@ DWORD_PTR WINAPI SHGetFileInfoA(LPCSTR path,DWORD
dwFileAttributes,
pathW = temppath;
}
- if (psfi && (flags & SHGFI_ATTR_SPECIFIED))
- temppsfi.dwAttributes=psfi->dwAttributes;
+ if (psfi)
+ {
+ temppsfi.hIcon = psfi->hIcon;
+ temppsfi.iIcon = psfi->iIcon;
+ temppsfi.dwAttributes = psfi->dwAttributes;
- if (psfi == NULL)
- ret = SHGetFileInfoW(pathW, dwFileAttributes, NULL, 0, flags);
- else
ret = SHGetFileInfoW(pathW, dwFileAttributes, &temppsfi, sizeof(temppsfi),
flags);
+ psfi->hIcon = temppsfi.hIcon;
+ psfi->iIcon = temppsfi.iIcon;
+ psfi->dwAttributes = temppsfi.dwAttributes;
- if (psfi)
- {
- if(flags & SHGFI_ICON)
- psfi->hIcon=temppsfi.hIcon;
- if(flags & (SHGFI_SYSICONINDEX|SHGFI_ICON|SHGFI_ICONLOCATION))
- psfi->iIcon=temppsfi.iIcon;
- if(flags & SHGFI_ATTRIBUTES)
- psfi->dwAttributes=temppsfi.dwAttributes;
- if(flags & (SHGFI_DISPLAYNAME|SHGFI_ICONLOCATION))
- {
- WideCharToMultiByte(CP_ACP, 0, temppsfi.szDisplayName, -1,
- psfi->szDisplayName, sizeof(psfi->szDisplayName), NULL, NULL);
- }
- if(flags & SHGFI_TYPENAME)
- {
- WideCharToMultiByte(CP_ACP, 0, temppsfi.szTypeName, -1,
- psfi->szTypeName, sizeof(psfi->szTypeName), NULL, NULL);
- }
+ WideCharToMultiByte(CP_ACP, 0, temppsfi.szDisplayName, -1,
+ psfi->szDisplayName, sizeof(psfi->szDisplayName), NULL, NULL);
+
+ WideCharToMultiByte(CP_ACP, 0, temppsfi.szTypeName, -1,
+ psfi->szTypeName, sizeof(psfi->szTypeName), NULL, NULL);
}
+ else
+ ret = SHGetFileInfoW(pathW, dwFileAttributes, NULL, 0, flags);
HeapFree(GetProcessHeap(), 0, temppath);
--
Pierre Schweitzer <pierre at reactos.org>
System & Network Administrator
Senior Kernel Developer
ReactOS Deutschland e.V.