[jmorlan] 47359: [WIN32CSR] Implement console pausing. [Bug 4739]

Author: jmorlan
Date: Wed May 26 06:57:45 2010
New Revision: 47359

URL: http://svn.reactos.org/svn/reactos?rev=47359&view=rev
Log:
[WIN32CSR] Implement console pausing. [Bug 4739]

Modified:
    trunk/reactos/dll/win32/kernel32/misc/console.c
    trunk/reactos/include/reactos/subsys/csrss/csrss.h
    trunk/reactos/subsystems/win32/csrss/win32csr/conio.c
    trunk/reactos/subsystems/win32/csrss/win32csr/conio.h
    trunk/reactos/subsystems/win32/csrss/win32csr/guiconsole.c

Modified: trunk/reactos/dll/win32/kernel32/misc/console.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/misc/co…
==============================================================================
--- trunk/reactos/dll/win32/kernel32/misc/console.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/misc/console.c [iso-8859-1] Wed May 26 06:57:45 2010
@@ -1467,6 +1467,12 @@
                                      max(sizeof(CSR_API_MESSAGE),
                                      CSR_API_MESSAGE_HEADER_SIZE(CSRSS_WRITE_CONSOLE) +
SizeBytes));
 
+        if (Status == STATUS_PENDING)
+        {
+            WaitForSingleObject(Request->Data.WriteConsoleRequest.UnpauseEvent,
INFINITE);
+            CloseHandle(Request->Data.WriteConsoleRequest.UnpauseEvent);
+            continue;
+        }
         if (!NT_SUCCESS(Status) || !NT_SUCCESS(Status = Request->Status))
         {
             RtlFreeHeap(RtlGetProcessHeap(), 0, Request);

Modified: trunk/reactos/include/reactos/subsys/csrss/csrss.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/subsys/csr…
==============================================================================
--- trunk/reactos/include/reactos/subsys/csrss/csrss.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/subsys/csrss/csrss.h [iso-8859-1] Wed May 26 06:57:45
2010
@@ -62,6 +62,7 @@
    BOOL Unicode;
    ULONG NrCharactersToWrite;
    ULONG NrCharactersWritten;
+   HANDLE UnpauseEvent;
    BYTE Buffer[0];
 } CSRSS_WRITE_CONSOLE, *PCSRSS_WRITE_CONSOLE;
 

Modified: trunk/reactos/subsystems/win32/csrss/win32csr/conio.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/win…
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/win32csr/conio.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/csrss/win32csr/conio.c [iso-8859-1] Wed May 26 06:57:45
2010
@@ -849,6 +849,15 @@
     }
   Console = Buff->Header.Console;
 
+  if (Console->UnpauseEvent)
+    {
+      Status = NtDuplicateObject(GetCurrentProcess(), Console->UnpauseEvent,
+                                 ProcessData->Process,
&Request->Data.WriteConsoleRequest.UnpauseEvent,
+                                 SYNCHRONIZE, 0, 0);
+      ConioUnlockScreenBuffer(Buff);
+      return NT_SUCCESS(Status) ? STATUS_PENDING : Status;
+    }
+
   if(Request->Data.WriteConsoleRequest.Unicode)
     {
       Length = WideCharToMultiByte(Console->OutputCodePage, 0,
@@ -953,6 +962,7 @@
     }
 
   CloseHandle(Console->ActiveEvent);
+  if (Console->UnpauseEvent) CloseHandle(Console->UnpauseEvent);
   DeleteCriticalSection(&Console->Lock);
   RtlFreeUnicodeString(&Console->Title);
   IntDeleteAllAliases(Console->Aliases);
@@ -967,12 +977,61 @@
   /* Should call LoadKeyboardLayout */
 }
 
+VOID FASTCALL
+ConioPause(PCSRSS_CONSOLE Console, UINT Flags)
+{
+    Console->PauseFlags |= Flags;
+    if (!Console->UnpauseEvent)
+        Console->UnpauseEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
+}
+
+VOID FASTCALL
+ConioUnpause(PCSRSS_CONSOLE Console, UINT Flags)
+{
+    Console->PauseFlags &= ~Flags;
+    if (Console->PauseFlags == 0 && Console->UnpauseEvent)
+    {
+        SetEvent(Console->UnpauseEvent);
+        CloseHandle(Console->UnpauseEvent);
+        Console->UnpauseEvent = NULL;
+    }
+}
+
 static VOID FASTCALL
 ConioProcessChar(PCSRSS_CONSOLE Console,
                  ConsoleInput *KeyEventRecord)
 {
   BOOL updown;
   ConsoleInput *TempInput;
+
+  if (KeyEventRecord->InputEvent.EventType == KEY_EVENT &&
+      KeyEventRecord->InputEvent.Event.KeyEvent.bKeyDown)
+    {
+      WORD vk = KeyEventRecord->InputEvent.Event.KeyEvent.wVirtualKeyCode;
+      if (!(Console->PauseFlags & PAUSED_FROM_KEYBOARD))
+        {
+          DWORD cks = KeyEventRecord->InputEvent.Event.KeyEvent.dwControlKeyState;
+          if (Console->Mode & ENABLE_LINE_INPUT &&
+              (vk == VK_PAUSE || (vk == 'S' && 
+                                  (cks & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
&&
+                                  !(cks & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)))))
+            {
+              ConioPause(Console, PAUSED_FROM_KEYBOARD);
+              HeapFree(Win32CsrApiHeap, 0, KeyEventRecord);
+              return;
+            }
+        }
+      else
+        {
+          if ((vk < VK_SHIFT || vk > VK_CAPITAL) && vk != VK_LWIN
&&
+              vk != VK_RWIN && vk != VK_NUMLOCK && vk != VK_SCROLL)
+            {
+              ConioUnpause(Console, PAUSED_FROM_KEYBOARD);
+              HeapFree(Win32CsrApiHeap, 0, KeyEventRecord);
+              return;
+            }
+        }
+    }
 
   if (0 != (Console->Mode & (ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT)))
     {

Modified: trunk/reactos/subsystems/win32/csrss/win32csr/conio.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/win…
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/win32csr/conio.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/csrss/win32csr/conio.h [iso-8859-1] Wed May 26 06:57:45
2010
@@ -93,6 +93,8 @@
   LIST_ENTRY ProcessList;
   struct tagALIAS_HEADER *Aliases;
   CONSOLE_SELECTION_INFO Selection;
+  BYTE PauseFlags;
+  HANDLE UnpauseEvent;
 } CSRSS_CONSOLE;
 
 typedef struct ConsoleInput_t
@@ -111,10 +113,17 @@
 #define CONSOLE_MOUSE_SELECTION       0x4
 #define CONSOLE_MOUSE_DOWN            0x8
 
+/* PauseFlags values (internal only) */
+#define PAUSED_FROM_KEYBOARD  0x1
+#define PAUSED_FROM_SCROLLBAR 0x2
+#define PAUSED_FROM_SELECTION 0x4
+
 NTSTATUS FASTCALL ConioConsoleFromProcessData(PCSRSS_PROCESS_DATA ProcessData,
PCSRSS_CONSOLE *Console);
 VOID WINAPI ConioDeleteConsole(Object_t *Object);
 VOID WINAPI ConioDeleteScreenBuffer(PCSRSS_SCREEN_BUFFER Buffer);
 VOID WINAPI CsrInitConsoleSupport(VOID);
+VOID FASTCALL ConioPause(PCSRSS_CONSOLE Console, UINT Flags);
+VOID FASTCALL ConioUnpause(PCSRSS_CONSOLE Console, UINT Flags);
 void WINAPI ConioProcessKey(MSG *msg, PCSRSS_CONSOLE Console, BOOL TextMode);
 PBYTE FASTCALL ConioCoordToPointer(PCSRSS_SCREEN_BUFFER Buf, ULONG X, ULONG Y);
 VOID FASTCALL ConioDrawConsole(PCSRSS_CONSOLE Console);

Modified: trunk/reactos/subsystems/win32/csrss/win32csr/guiconsole.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/win…
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/win32csr/guiconsole.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/csrss/win32csr/guiconsole.c [iso-8859-1] Wed May 26
06:57:45 2010
@@ -844,6 +844,7 @@
     }
     Console->Selection.dwFlags |= CONSOLE_SELECTION_NOT_EMPTY;
     Console->Selection.srSelection = rc;
+    ConioPause(Console, PAUSED_FROM_SELECTION);
   }
   else
   {
@@ -853,6 +854,7 @@
       InvalidateRect(hWnd, &oldRect, FALSE);
     }
     Console->Selection.dwFlags = CONSOLE_NO_SELECTION;
+    ConioUnpause(Console, PAUSED_FROM_SELECTION);
   }
 }
 
@@ -1803,6 +1805,11 @@
 
   case SB_THUMBTRACK:
       sInfo.nPos = sInfo.nTrackPos;
+      ConioPause(Console, PAUSED_FROM_SCROLLBAR);
+      break;
+
+  case SB_THUMBPOSITION:
+      ConioUnpause(Console, PAUSED_FROM_SCROLLBAR);
       break;
 
   case SB_TOP: