[reactos] 01/01: [WIN32SS][NTUSER] Implement NtUserDestroyInputContext (#4063)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3d78601f39369fecb3773…

commit 3d78601f39369fecb3773fba181049f2ef01ef8c
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Mon Nov 1 15:20:42 2021 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Mon Nov 1 15:20:42 2021 +0900

    [WIN32SS][NTUSER] Implement NtUserDestroyInputContext (#4063)
    
    CORE-11700
---
 win32ss/user/ntuser/ime.c       | 80 ++++++++++++++++++++++++++++++++++++++++-
 win32ss/user/ntuser/ntstubs.c   |  8 -----
 win32ss/user/ntuser/object.c    |  2 +-
 win32ss/user/ntuser/userfuncs.h |  6 ++++
 4 files changed, 86 insertions(+), 10 deletions(-)

diff --git a/win32ss/user/ntuser/ime.c b/win32ss/user/ntuser/ime.c
index 1d84609186c..12914ccb171 100644
--- a/win32ss/user/ntuser/ime.c
+++ b/win32ss/user/ntuser/ime.c
@@ -3,7 +3,8 @@
  * PROJECT:          ReactOS Win32k subsystem
  * PURPOSE:          Input Method Editor and Input Method Manager support
  * FILE:             win32ss/user/ntuser/ime.c
- * PROGRAMER:        Casper S. Hornstrup (chorns(a)users.sourceforge.net)
+ * PROGRAMERS:       Casper S. Hornstrup (chorns(a)users.sourceforge.net)
+ *                   Katayama Hirofumi MZ (katayama.hirofumi.mz(a)gmail.com)
  */
 
 #include <win32k.h>
@@ -134,5 +135,82 @@ NtUserSetImeOwnerWindow(PIMEINFOEX pImeInfoEx, BOOL fFlag)
    return 0;
 }
 
+PVOID
+AllocInputContextObject(PDESKTOP pDesk,
+                        PTHREADINFO pti,
+                        SIZE_T Size,
+                        PVOID* HandleOwner)
+{
+    PTHRDESKHEAD ObjHead;
+
+    ASSERT(Size > sizeof(*ObjHead));
+    ASSERT(pti != NULL);
+
+    ObjHead = UserHeapAlloc(Size);
+    if (!ObjHead)
+        return NULL;
+
+    RtlZeroMemory(ObjHead, Size);
+
+    ObjHead->pSelf = ObjHead;
+    ObjHead->rpdesk = pDesk;
+    ObjHead->pti = pti;
+    IntReferenceThreadInfo(pti);
+    *HandleOwner = pti;
+    pti->ppi->UserHandleCount++;
+
+    return ObjHead;
+}
+
+VOID UserFreeInputContext(PVOID Object)
+{
+    PIMC pIMC = Object, pImc0;
+    PTHREADINFO pti = pIMC->head.pti;
+
+    UserMarkObjectDestroy(Object);
+
+    for (pImc0 = pti->spDefaultImc; pImc0; pImc0 = pImc0->pImcNext)
+    {
+        if (pImc0->pImcNext == pIMC)
+        {
+            pImc0->pImcNext = pIMC->pImcNext;
+            break;
+        }
+    }
+
+    UserHeapFree(Object);
+
+    pti->ppi->UserHandleCount--;
+    IntDereferenceThreadInfo(pti);
+}
+
+BOOLEAN UserDestroyInputContext(PVOID Object)
+{
+    PIMC pIMC = Object;
+    UserDeleteObject(pIMC->head.h, TYPE_INPUTCONTEXT);
+    return TRUE;
+}
+
+BOOL APIENTRY NtUserDestroyInputContext(HIMC hIMC)
+{
+    PIMC pIMC;
+    BOOL ret = FALSE;
+
+    UserEnterExclusive();
+
+    if (!(gpsi->dwSRVIFlags & SRVINFO_IMM32))
+    {
+        EngSetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+        UserLeave();
+        return FALSE;
+    }
+
+    pIMC = UserGetObject(gHandleTable, hIMC, TYPE_INPUTCONTEXT);
+    if (pIMC)
+        ret = UserDereferenceObject(pIMC);
+
+    UserLeave();
+    return ret;
+}
 
 /* EOF */
diff --git a/win32ss/user/ntuser/ntstubs.c b/win32ss/user/ntuser/ntstubs.c
index e3de96b1d51..9d7b624151b 100644
--- a/win32ss/user/ntuser/ntstubs.c
+++ b/win32ss/user/ntuser/ntstubs.c
@@ -424,14 +424,6 @@ NtUserCreateInputContext(PCLIENTIMC pClientImc)
     return NULL;
 }
 
-BOOL
-APIENTRY
-NtUserDestroyInputContext(HIMC hIMC)
-{
-    STUB;
-    return FALSE;
-}
-
 DWORD
 APIENTRY
 NtUserGetRawInputBuffer(
diff --git a/win32ss/user/ntuser/object.c b/win32ss/user/ntuser/object.c
index 05ed7eebd5c..cc2bebdb8bc 100644
--- a/win32ss/user/ntuser/object.c
+++ b/win32ss/user/ntuser/object.c
@@ -237,7 +237,7 @@ static const struct
     { AllocSysObject,           /*UserKbdFileCleanup*/NULL, FreeSysObject },        /*
TYPE_KBDFILE */
     { AllocThreadObject,        IntRemoveEvent,             FreeThreadObject },     /*
TYPE_WINEVENTHOOK */
     { AllocSysObject,           /*UserTimerCleanup*/NULL,   FreeSysObject },        /*
TYPE_TIMER */
-    { NULL,                     NULL,                       NULL },                 /*
TYPE_INPUTCONTEXT */
+    { AllocInputContextObject,  UserDestroyInputContext,    UserFreeInputContext }, /*
TYPE_INPUTCONTEXT */
     { NULL,                     NULL,                       NULL },                 /*
TYPE_HIDDATA */
     { NULL,                     NULL,                       NULL },                 /*
TYPE_DEVICEINFO */
     { NULL,                     NULL,                       NULL },                 /*
TYPE_TOUCHINPUTINFO */
diff --git a/win32ss/user/ntuser/userfuncs.h b/win32ss/user/ntuser/userfuncs.h
index 29ae2394dd8..6fb86e64d71 100644
--- a/win32ss/user/ntuser/userfuncs.h
+++ b/win32ss/user/ntuser/userfuncs.h
@@ -163,4 +163,10 @@ BOOL UserPaintCaption(PWND pWnd, INT Flags);
 BOOL FASTCALL SetLayeredStatus(PWND pWnd, BYTE set);
 BOOL FASTCALL GetLayeredStatus(PWND pWnd);
 
+/************** INPUT CONTEXT **************/
+
+VOID UserFreeInputContext(PVOID Object);
+BOOLEAN UserDestroyInputContext(PVOID Object);
+PVOID AllocInputContextObject(PDESKTOP pDesk, PTHREADINFO pti, SIZE_T Size, PVOID*
HandleOwner);
+
 /* EOF */