reactos/dll/win32/comctl32/hotkey.c
2018-04-20 16:27:17 +02:00

562 lines
14 KiB
C

/*
* Hotkey control
*
* Copyright 1998, 1999 Eric Kohl
* Copyright 2002 Gyorgy 'Nog' Jeney
* Copyright 2004 Robert Shearman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* This code was audited for completeness against the documented features
* of Comctl32.dll version 6.0 on Sep. 21, 2004, by Robert Shearman.
*
* Unless otherwise noted, we believe this code to be complete, as per
* the specification mentioned above.
* If you discover missing features or bugs please note them below.
*
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "comctl32.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(hotkey);
typedef struct tagHOTKEY_INFO
{
HWND hwndSelf;
HWND hwndNotify;
HFONT hFont;
BOOL bFocus;
INT nHeight;
WORD HotKey;
WORD InvComb;
WORD InvMod;
BYTE CurrMod;
INT CaretPos;
DWORD ScanCode;
WCHAR strNone[15]; /* hope it's long enough ... */
} HOTKEY_INFO;
static const WCHAR HOTKEY_plussep[] = { ' ', '+', ' ' };
static LRESULT HOTKEY_SetFont (HOTKEY_INFO *infoPtr, HFONT hFont, BOOL redraw);
#define IsOnlySet(flags) (infoPtr->CurrMod == (flags))
static BOOL
HOTKEY_IsCombInv(const HOTKEY_INFO *infoPtr)
{
TRACE("(infoPtr=%p)\n", infoPtr);
if((infoPtr->InvComb & HKCOMB_NONE) && !infoPtr->CurrMod)
return TRUE;
if((infoPtr->InvComb & HKCOMB_S) && IsOnlySet(HOTKEYF_SHIFT))
return TRUE;
if((infoPtr->InvComb & HKCOMB_C) && IsOnlySet(HOTKEYF_CONTROL))
return TRUE;
if((infoPtr->InvComb & HKCOMB_A) && IsOnlySet(HOTKEYF_ALT))
return TRUE;
if((infoPtr->InvComb & HKCOMB_SC) &&
IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_CONTROL))
return TRUE;
if((infoPtr->InvComb & HKCOMB_SA) && IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_ALT))
return TRUE;
if((infoPtr->InvComb & HKCOMB_CA) &&
IsOnlySet(HOTKEYF_CONTROL | HOTKEYF_ALT))
return TRUE;
if((infoPtr->InvComb & HKCOMB_SCA) &&
IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_CONTROL | HOTKEYF_ALT))
return TRUE;
TRACE("() Modifiers are valid\n");
return FALSE;
}
#undef IsOnlySet
static void
HOTKEY_DrawHotKey(HOTKEY_INFO *infoPtr, HDC hdc, LPCWSTR KeyName, WORD NameLen)
{
SIZE TextSize;
INT nXStart, nYStart;
COLORREF clrOldText, clrOldBk;
HFONT hFontOld;
/* Make a gap from the frame */
nXStart = GetSystemMetrics(SM_CXBORDER);
nYStart = GetSystemMetrics(SM_CYBORDER);
hFontOld = SelectObject(hdc, infoPtr->hFont);
if (GetWindowLongW(infoPtr->hwndSelf, GWL_STYLE) & WS_DISABLED)
{
clrOldText = SetTextColor(hdc, comctl32_color.clrGrayText);
clrOldBk = SetBkColor(hdc, comctl32_color.clrBtnFace);
}
else
{
clrOldText = SetTextColor(hdc, comctl32_color.clrWindowText);
clrOldBk = SetBkColor(hdc, comctl32_color.clrWindow);
}
TextOutW(hdc, nXStart, nYStart, KeyName, NameLen);
/* Get the text width for the caret */
GetTextExtentPoint32W(hdc, KeyName, NameLen, &TextSize);
infoPtr->CaretPos = nXStart + TextSize.cx;
SetBkColor(hdc, clrOldBk);
SetTextColor(hdc, clrOldText);
SelectObject(hdc, hFontOld);
/* position the caret */
SetCaretPos(infoPtr->CaretPos, nYStart);
}
/* Draw the names of the keys in the control */
static void
HOTKEY_Refresh(HOTKEY_INFO *infoPtr, HDC hdc)
{
WCHAR KeyName[64];
WORD NameLen = 0;
BYTE Modifier;
TRACE("(infoPtr=%p hdc=%p)\n", infoPtr, hdc);
if(!infoPtr->CurrMod && !infoPtr->HotKey) {
HOTKEY_DrawHotKey (infoPtr, hdc, infoPtr->strNone, lstrlenW(infoPtr->strNone));
return;
}
if(infoPtr->HotKey)
Modifier = HIBYTE(infoPtr->HotKey);
else if(HOTKEY_IsCombInv(infoPtr))
Modifier = infoPtr->InvMod;
else
Modifier = infoPtr->CurrMod;
if(Modifier & HOTKEYF_CONTROL) {
GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_CONTROL, 0)),
KeyName, 64);
NameLen = lstrlenW(KeyName);
memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
NameLen += 3;
}
if(Modifier & HOTKEYF_SHIFT) {
GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_SHIFT, 0)),
&KeyName[NameLen], 64 - NameLen);
NameLen = lstrlenW(KeyName);
memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
NameLen += 3;
}
if(Modifier & HOTKEYF_ALT) {
GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_MENU, 0)),
&KeyName[NameLen], 64 - NameLen);
NameLen = lstrlenW(KeyName);
memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
NameLen += 3;
}
if(infoPtr->HotKey) {
GetKeyNameTextW(infoPtr->ScanCode, &KeyName[NameLen], 64 - NameLen);
NameLen = lstrlenW(KeyName);
}
else
KeyName[NameLen] = 0;
HOTKEY_DrawHotKey (infoPtr, hdc, KeyName, NameLen);
}
static void
HOTKEY_Paint(HOTKEY_INFO *infoPtr, HDC hdc)
{
if (hdc)
HOTKEY_Refresh(infoPtr, hdc);
else {
PAINTSTRUCT ps;
hdc = BeginPaint (infoPtr->hwndSelf, &ps);
HOTKEY_Refresh (infoPtr, hdc);
EndPaint (infoPtr->hwndSelf, &ps);
}
}
static LRESULT
HOTKEY_GetHotKey(const HOTKEY_INFO *infoPtr)
{
TRACE("(infoPtr=%p) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
return (LRESULT)infoPtr->HotKey;
}
static void
HOTKEY_SetHotKey(HOTKEY_INFO *infoPtr, WORD hotKey)
{
infoPtr->HotKey = hotKey;
infoPtr->ScanCode =
MAKELPARAM(0, MapVirtualKeyW(LOBYTE(infoPtr->HotKey), 0));
TRACE("(infoPtr=%p hotKey=%x) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
hotKey, HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
}
static void
HOTKEY_SetRules(HOTKEY_INFO *infoPtr, WORD invComb, WORD invMod)
{
infoPtr->InvComb = invComb;
infoPtr->InvMod = invMod;
TRACE("(infoPtr=%p) Invalid Modifers: 0x%x, If Invalid: 0x%x\n", infoPtr,
infoPtr->InvComb, infoPtr->InvMod);
}
static LRESULT
HOTKEY_Create (HOTKEY_INFO *infoPtr, const CREATESTRUCTW *lpcs)
{
infoPtr->hwndNotify = lpcs->hwndParent;
HOTKEY_SetFont(infoPtr, GetStockObject(SYSTEM_FONT), 0);
return 0;
}
static LRESULT
HOTKEY_Destroy (HOTKEY_INFO *infoPtr)
{
/* free hotkey info data */
SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
heap_free (infoPtr);
return 0;
}
static LRESULT
HOTKEY_EraseBackground (const HOTKEY_INFO *infoPtr, HDC hdc)
{
HBRUSH hBrush, hSolidBrush = NULL;
RECT rc;
if (GetWindowLongW(infoPtr->hwndSelf, GWL_STYLE) & WS_DISABLED)
hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrBtnFace);
else
{
hBrush = (HBRUSH)SendMessageW(infoPtr->hwndNotify, WM_CTLCOLOREDIT,
(WPARAM)hdc, (LPARAM)infoPtr->hwndSelf);
if (!hBrush)
hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrWindow);
}
GetClientRect (infoPtr->hwndSelf, &rc);
FillRect (hdc, &rc, hBrush);
if (hSolidBrush)
DeleteObject(hSolidBrush);
return -1;
}
static inline LRESULT
HOTKEY_GetFont (const HOTKEY_INFO *infoPtr)
{
return (LRESULT)infoPtr->hFont;
}
static LRESULT
HOTKEY_KeyDown (HOTKEY_INFO *infoPtr, DWORD key, DWORD flags)
{
WORD wOldHotKey;
BYTE bOldMod;
if (GetWindowLongW(infoPtr->hwndSelf, GWL_STYLE) & WS_DISABLED)
return 0;
TRACE("() Key: %d\n", key);
wOldHotKey = infoPtr->HotKey;
bOldMod = infoPtr->CurrMod;
/* If any key is Pressed, we have to reset the hotkey in the control */
infoPtr->HotKey = 0;
switch (key)
{
case VK_RETURN:
case VK_TAB:
case VK_SPACE:
case VK_DELETE:
case VK_ESCAPE:
case VK_BACK:
InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
return DefWindowProcW (infoPtr->hwndSelf, WM_KEYDOWN, key, flags);
case VK_SHIFT:
infoPtr->CurrMod |= HOTKEYF_SHIFT;
break;
case VK_CONTROL:
infoPtr->CurrMod |= HOTKEYF_CONTROL;
break;
case VK_MENU:
infoPtr->CurrMod |= HOTKEYF_ALT;
break;
default:
if(HOTKEY_IsCombInv(infoPtr))
infoPtr->HotKey = MAKEWORD(key, infoPtr->InvMod);
else
infoPtr->HotKey = MAKEWORD(key, infoPtr->CurrMod);
infoPtr->ScanCode = flags;
break;
}
if ((wOldHotKey != infoPtr->HotKey) || (bOldMod != infoPtr->CurrMod))
{
InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
/* send EN_CHANGE notification */
SendMessageW(infoPtr->hwndNotify, WM_COMMAND,
MAKEWPARAM(GetDlgCtrlID(infoPtr->hwndSelf), EN_CHANGE),
(LPARAM)infoPtr->hwndSelf);
}
return 0;
}
static LRESULT
HOTKEY_KeyUp (HOTKEY_INFO *infoPtr, DWORD key)
{
BYTE bOldMod;
if (GetWindowLongW(infoPtr->hwndSelf, GWL_STYLE) & WS_DISABLED)
return 0;
TRACE("() Key: %d\n", key);
bOldMod = infoPtr->CurrMod;
switch (key)
{
case VK_SHIFT:
infoPtr->CurrMod &= ~HOTKEYF_SHIFT;
break;
case VK_CONTROL:
infoPtr->CurrMod &= ~HOTKEYF_CONTROL;
break;
case VK_MENU:
infoPtr->CurrMod &= ~HOTKEYF_ALT;
break;
default:
return 1;
}
if (bOldMod != infoPtr->CurrMod)
{
InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
/* send EN_CHANGE notification */
SendMessageW(infoPtr->hwndNotify, WM_COMMAND,
MAKEWPARAM(GetDlgCtrlID(infoPtr->hwndSelf), EN_CHANGE),
(LPARAM)infoPtr->hwndSelf);
}
return 0;
}
static LRESULT
HOTKEY_KillFocus (HOTKEY_INFO *infoPtr)
{
infoPtr->bFocus = FALSE;
DestroyCaret ();
return 0;
}
static LRESULT
HOTKEY_LButtonDown (const HOTKEY_INFO *infoPtr)
{
if (!(GetWindowLongW(infoPtr->hwndSelf, GWL_STYLE) & WS_DISABLED))
SetFocus (infoPtr->hwndSelf);
return 0;
}
static inline LRESULT
HOTKEY_NCCreate (HWND hwnd, const CREATESTRUCTW *lpcs)
{
HOTKEY_INFO *infoPtr;
DWORD dwExStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
SetWindowLongW (hwnd, GWL_EXSTYLE,
dwExStyle | WS_EX_CLIENTEDGE);
/* allocate memory for info structure */
infoPtr = heap_alloc_zero (sizeof(*infoPtr));
SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
/* initialize info structure */
infoPtr->HotKey = infoPtr->InvComb = infoPtr->InvMod = infoPtr->CurrMod = 0;
infoPtr->CaretPos = GetSystemMetrics(SM_CXBORDER);
infoPtr->hwndSelf = hwnd;
LoadStringW(COMCTL32_hModule, HKY_NONE, infoPtr->strNone, 15);
return DefWindowProcW (infoPtr->hwndSelf, WM_NCCREATE, 0, (LPARAM)lpcs);
}
static LRESULT
HOTKEY_SetFocus (HOTKEY_INFO *infoPtr)
{
infoPtr->bFocus = TRUE;
CreateCaret (infoPtr->hwndSelf, NULL, 1, infoPtr->nHeight);
SetCaretPos (infoPtr->CaretPos, GetSystemMetrics(SM_CYBORDER));
ShowCaret (infoPtr->hwndSelf);
return 0;
}
static LRESULT
HOTKEY_SetFont (HOTKEY_INFO *infoPtr, HFONT hFont, BOOL redraw)
{
TEXTMETRICW tm;
HDC hdc;
HFONT hOldFont = 0;
infoPtr->hFont = hFont;
hdc = GetDC (infoPtr->hwndSelf);
if (infoPtr->hFont)
hOldFont = SelectObject (hdc, infoPtr->hFont);
GetTextMetricsW (hdc, &tm);
infoPtr->nHeight = tm.tmHeight;
if (infoPtr->hFont)
SelectObject (hdc, hOldFont);
ReleaseDC (infoPtr->hwndSelf, hdc);
if (redraw)
InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
return 0;
}
static LRESULT WINAPI
HOTKEY_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HOTKEY_INFO *infoPtr = (HOTKEY_INFO *)GetWindowLongPtrW (hwnd, 0);
TRACE("hwnd=%p msg=%x wparam=%lx lparam=%lx\n", hwnd, uMsg, wParam, lParam);
if (!infoPtr && (uMsg != WM_NCCREATE))
return DefWindowProcW (hwnd, uMsg, wParam, lParam);
switch (uMsg)
{
case HKM_GETHOTKEY:
return HOTKEY_GetHotKey (infoPtr);
case HKM_SETHOTKEY:
HOTKEY_SetHotKey (infoPtr, (WORD)wParam);
break;
case HKM_SETRULES:
HOTKEY_SetRules (infoPtr, (WORD)wParam, (WORD)lParam);
break;
case WM_CHAR:
case WM_SYSCHAR:
return HOTKEY_KeyDown (infoPtr, MapVirtualKeyW(LOBYTE(HIWORD(lParam)), 1), lParam);
case WM_CREATE:
return HOTKEY_Create (infoPtr, (LPCREATESTRUCTW)lParam);
case WM_DESTROY:
return HOTKEY_Destroy (infoPtr);
case WM_ERASEBKGND:
return HOTKEY_EraseBackground (infoPtr, (HDC)wParam);
case WM_GETDLGCODE:
return DLGC_WANTCHARS | DLGC_WANTARROWS;
case WM_GETFONT:
return HOTKEY_GetFont (infoPtr);
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
return HOTKEY_KeyDown (infoPtr, wParam, lParam);
case WM_KEYUP:
case WM_SYSKEYUP:
return HOTKEY_KeyUp (infoPtr, wParam);
case WM_KILLFOCUS:
return HOTKEY_KillFocus (infoPtr);
case WM_LBUTTONDOWN:
return HOTKEY_LButtonDown (infoPtr);
case WM_NCCREATE:
return HOTKEY_NCCreate (hwnd, (LPCREATESTRUCTW)lParam);
case WM_PRINTCLIENT:
case WM_PAINT:
HOTKEY_Paint(infoPtr, (HDC)wParam);
return 0;
case WM_SETFOCUS:
return HOTKEY_SetFocus (infoPtr);
case WM_SETFONT:
return HOTKEY_SetFont (infoPtr, (HFONT)wParam, LOWORD(lParam));
default:
if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
ERR("unknown msg %04x wp=%08lx lp=%08lx\n",
uMsg, wParam, lParam);
return DefWindowProcW (hwnd, uMsg, wParam, lParam);
}
return 0;
}
void
HOTKEY_Register (void)
{
WNDCLASSW wndClass;
ZeroMemory (&wndClass, sizeof(WNDCLASSW));
wndClass.style = CS_GLOBALCLASS;
wndClass.lpfnWndProc = HOTKEY_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(HOTKEY_INFO *);
wndClass.hCursor = 0;
wndClass.hbrBackground = 0;
wndClass.lpszClassName = HOTKEY_CLASSW;
RegisterClassW (&wndClass);
}
void
HOTKEY_Unregister (void)
{
UnregisterClassW (HOTKEY_CLASSW, NULL);
}