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/*
* USER Input processing
*
* Copyright 1993 Bob Amstadt
* Copyright 1996 Albrecht Kleine
* Copyright 1997 David Faure
* Copyright 1998 Morten Welinder
* Copyright 1998 Ulrich Weigand
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <ctype.h>
#include <assert.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "wine/server.h"
#include "user_private.h"
#include "winternl.h"
#include "wine/debug.h"
#include "winerror.h"
WINE_DEFAULT_DEBUG_CHANNEL(key);
WINE_DECLARE_DEBUG_CHANNEL(keyboard);
/***********************************************************************
* get_key_state
*/
static WORD get_key_state(void)
{
WORD ret = 0;
if (GetSystemMetrics( SM_SWAPBUTTON ))
{
if (GetAsyncKeyState(VK_RBUTTON) & 0x80) ret |= MK_LBUTTON;
if (GetAsyncKeyState(VK_LBUTTON) & 0x80) ret |= MK_RBUTTON;
}
else
{
if (GetAsyncKeyState(VK_LBUTTON) & 0x80) ret |= MK_LBUTTON;
if (GetAsyncKeyState(VK_RBUTTON) & 0x80) ret |= MK_RBUTTON;
}
if (GetAsyncKeyState(VK_MBUTTON) & 0x80) ret |= MK_MBUTTON;
if (GetAsyncKeyState(VK_SHIFT) & 0x80) ret |= MK_SHIFT;
if (GetAsyncKeyState(VK_CONTROL) & 0x80) ret |= MK_CONTROL;
if (GetAsyncKeyState(VK_XBUTTON1) & 0x80) ret |= MK_XBUTTON1;
if (GetAsyncKeyState(VK_XBUTTON2) & 0x80) ret |= MK_XBUTTON2;
return ret;
}
/***********************************************************************
* SendInput (USER32.@)
*/
UINT WINAPI SendInput( UINT count, LPINPUT inputs, int size )
{
return USER_Driver->pSendInput( count, inputs, size );
}
/***********************************************************************
* keybd_event (USER32.@)
*/
void WINAPI keybd_event( BYTE bVk, BYTE bScan,
DWORD dwFlags, ULONG_PTR dwExtraInfo )
{
INPUT input;
input.type = INPUT_KEYBOARD;
input.u.ki.wVk = bVk;
input.u.ki.wScan = bScan;
input.u.ki.dwFlags = dwFlags;
input.u.ki.time = GetTickCount();
input.u.ki.dwExtraInfo = dwExtraInfo;
SendInput( 1, &input, sizeof(input) );
}
/***********************************************************************
* mouse_event (USER32.@)
*/
void WINAPI mouse_event( DWORD dwFlags, DWORD dx, DWORD dy,
DWORD dwData, ULONG_PTR dwExtraInfo )
{
INPUT input;
input.type = INPUT_MOUSE;
input.u.mi.dx = dx;
input.u.mi.dy = dy;
input.u.mi.mouseData = dwData;
input.u.mi.dwFlags = dwFlags;
input.u.mi.time = GetCurrentTime();
input.u.mi.dwExtraInfo = dwExtraInfo;
SendInput( 1, &input, sizeof(input) );
}
/***********************************************************************
* GetCursorPos (USER32.@)
*/
BOOL WINAPI GetCursorPos( POINT *pt )
{
if (!pt) return FALSE;
return USER_Driver->pGetCursorPos( pt );
}
/***********************************************************************
* GetCursorInfo (USER32.@)
*/
BOOL WINAPI GetCursorInfo( PCURSORINFO pci )
{
if (!pci) return 0;
if (get_user_thread_info()->cursor_count >= 0) pci->flags = CURSOR_SHOWING;
else pci->flags = 0;
GetCursorPos(&pci->ptScreenPos);
return 1;
}
/***********************************************************************
* SetCursorPos (USER32.@)
*/
BOOL WINAPI SetCursorPos( INT x, INT y )
{
return USER_Driver->pSetCursorPos( x, y );
}
/**********************************************************************
* SetCapture (USER32.@)
*/
HWND WINAPI SetCapture( HWND hwnd )
{
HWND previous = 0;
SERVER_START_REQ( set_capture_window )
{
req->handle = hwnd;
req->flags = 0;
if (!wine_server_call_err( req ))
{
previous = reply->previous;
hwnd = reply->full_handle;
}
}
SERVER_END_REQ;
if (previous && previous != hwnd)
SendMessageW( previous, WM_CAPTURECHANGED, 0, (LPARAM)hwnd );
return previous;
}
/**********************************************************************
* ReleaseCapture (USER32.@)
*/
BOOL WINAPI ReleaseCapture(void)
{
BOOL ret;
HWND previous = 0;
SERVER_START_REQ( set_capture_window )
{
req->handle = 0;
req->flags = 0;
if ((ret = !wine_server_call_err( req ))) previous = reply->previous;
}
SERVER_END_REQ;
if (previous) SendMessageW( previous, WM_CAPTURECHANGED, 0, 0 );
return ret;
}
/**********************************************************************
* GetCapture (USER32.@)
*/
HWND WINAPI GetCapture(void)
{
HWND ret = 0;
SERVER_START_REQ( get_thread_input )
{
req->tid = GetCurrentThreadId();
if (!wine_server_call_err( req )) ret = reply->capture;
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetAsyncKeyState (USER32.@)
*
* Determine if a key is or was pressed. retval has high-order
* bit set to 1 if currently pressed, low-order bit set to 1 if key has
* been pressed.
*/
SHORT WINAPI GetAsyncKeyState(INT nKey)
{
return USER_Driver->pGetAsyncKeyState( nKey );
}
/***********************************************************************
* GetQueueStatus (USER32.@)
*/
DWORD WINAPI GetQueueStatus( UINT flags )
{
DWORD ret = 0;
if (flags & ~(QS_ALLINPUT | QS_ALLPOSTMESSAGE | QS_SMRESULT))
{
SetLastError( ERROR_INVALID_FLAGS );
return 0;
}
/* check for pending X events */
USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, flags, 0 );
SERVER_START_REQ( get_queue_status )
{
req->clear = 1;
wine_server_call( req );
ret = MAKELONG( reply->changed_bits & flags, reply->wake_bits & flags );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetInputState (USER32.@)
*/
BOOL WINAPI GetInputState(void)
{
DWORD ret = 0;
/* check for pending X events */
USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_INPUT, 0 );
SERVER_START_REQ( get_queue_status )
{
req->clear = 0;
wine_server_call( req );
ret = reply->wake_bits & (QS_KEY | QS_MOUSEBUTTON);
}
SERVER_END_REQ;
return ret;
}
/******************************************************************
* GetLastInputInfo (USER32.@)
*/
BOOL WINAPI GetLastInputInfo(PLASTINPUTINFO plii)
{
BOOL ret;
TRACE("%p\n", plii);
if (plii->cbSize != sizeof (*plii) )
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
SERVER_START_REQ( get_last_input_time )
{
ret = !wine_server_call_err( req );
if (ret)
plii->dwTime = reply->time;
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* AttachThreadInput (USER32.@)
*
* Attaches the input processing mechanism of one thread to that of
* another thread.
*/
BOOL WINAPI AttachThreadInput( DWORD from, DWORD to, BOOL attach )
{
BOOL ret;
SERVER_START_REQ( attach_thread_input )
{
req->tid_from = from;
req->tid_to = to;
req->attach = attach;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetKeyState (USER32.@)
*
* An application calls the GetKeyState function in response to a
* keyboard-input message. This function retrieves the state of the key
* at the time the input message was generated.
*/
SHORT WINAPI GetKeyState(INT vkey)
{
SHORT retval = 0;
SERVER_START_REQ( get_key_state )
{
req->tid = GetCurrentThreadId();
req->key = vkey;
if (!wine_server_call( req )) retval = (signed char)reply->state;
}
SERVER_END_REQ;
TRACE("key (0x%x) -> %x\n", vkey, retval);
return retval;
}
/**********************************************************************
* GetKeyboardState (USER32.@)
*/
BOOL WINAPI GetKeyboardState( LPBYTE state )
{
BOOL ret;
TRACE("(%p)\n", state);
memset( state, 0, 256 );
SERVER_START_REQ( get_key_state )
{
req->tid = GetCurrentThreadId();
req->key = -1;
wine_server_set_reply( req, state, 256 );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* SetKeyboardState (USER32.@)
*/
BOOL WINAPI SetKeyboardState( LPBYTE state )
{
BOOL ret;
TRACE("(%p)\n", state);
SERVER_START_REQ( set_key_state )
{
req->tid = GetCurrentThreadId();
wine_server_add_data( req, state, 256 );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* VkKeyScanA (USER32.@)
*
* VkKeyScan translates an ANSI character to a virtual-key and shift code
* for the current keyboard.
* high-order byte yields :
* 0 Unshifted
* 1 Shift
* 2 Ctrl
* 3-5 Shift-key combinations that are not used for characters
* 6 Ctrl-Alt
* 7 Ctrl-Alt-Shift
* I.e. : Shift = 1, Ctrl = 2, Alt = 4.
* FIXME : works ok except for dead chars :
* VkKeyScan '^'(0x5e, 94) ... got keycode 00 ... returning 00
* VkKeyScan '`'(0x60, 96) ... got keycode 00 ... returning 00
*/
SHORT WINAPI VkKeyScanA(CHAR cChar)
{
WCHAR wChar;
if (IsDBCSLeadByte(cChar)) return -1;
MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
return VkKeyScanW(wChar);
}
/******************************************************************************
* VkKeyScanW (USER32.@)
*/
SHORT WINAPI VkKeyScanW(WCHAR cChar)
{
return VkKeyScanExW(cChar, GetKeyboardLayout(0));
}
/**********************************************************************
* VkKeyScanExA (USER32.@)
*/
WORD WINAPI VkKeyScanExA(CHAR cChar, HKL dwhkl)
{
WCHAR wChar;
if (IsDBCSLeadByte(cChar)) return -1;
MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
return VkKeyScanExW(wChar, dwhkl);
}
/******************************************************************************
* VkKeyScanExW (USER32.@)
*/
WORD WINAPI VkKeyScanExW(WCHAR cChar, HKL dwhkl)
{
return USER_Driver->pVkKeyScanEx(cChar, dwhkl);
}
/**********************************************************************
* OemKeyScan (USER32.@)
*/
DWORD WINAPI OemKeyScan(WORD wOemChar)
{
TRACE("(%d)\n", wOemChar);
return wOemChar;
}
/******************************************************************************
* GetKeyboardType (USER32.@)
*/
INT WINAPI GetKeyboardType(INT nTypeFlag)
{
TRACE_(keyboard)("(%d)\n", nTypeFlag);
switch(nTypeFlag)
{
case 0: /* Keyboard type */
return 4; /* AT-101 */
case 1: /* Keyboard Subtype */
return 0; /* There are no defined subtypes */
case 2: /* Number of F-keys */
return 12; /* We're doing an 101 for now, so return 12 F-keys */
default:
WARN_(keyboard)("Unknown type\n");
return 0; /* The book says 0 here, so 0 */
}
}
/******************************************************************************
* MapVirtualKeyA (USER32.@)
*/
UINT WINAPI MapVirtualKeyA(UINT code, UINT maptype)
{
return MapVirtualKeyExA( code, maptype, GetKeyboardLayout(0) );
}
/******************************************************************************
* MapVirtualKeyW (USER32.@)
*/
UINT WINAPI MapVirtualKeyW(UINT code, UINT maptype)
{
return MapVirtualKeyExW(code, maptype, GetKeyboardLayout(0));
}
/******************************************************************************
* MapVirtualKeyExA (USER32.@)
*/
UINT WINAPI MapVirtualKeyExA(UINT code, UINT maptype, HKL hkl)
{
return MapVirtualKeyExW(code, maptype, hkl);
}
/******************************************************************************
* MapVirtualKeyExW (USER32.@)
*/
UINT WINAPI MapVirtualKeyExW(UINT code, UINT maptype, HKL hkl)
{
TRACE_(keyboard)("(%d, %d, %p)\n", code, maptype, hkl);
return USER_Driver->pMapVirtualKeyEx(code, maptype, hkl);
}
/****************************************************************************
* GetKBCodePage (USER32.@)
*/
UINT WINAPI GetKBCodePage(void)
{
return GetOEMCP();
}
/***********************************************************************
* GetKeyboardLayout (USER32.@)
*
* - device handle for keyboard layout defaulted to
* the language id. This is the way Windows default works.
* - the thread identifier (dwLayout) is also ignored.
*/
HKL WINAPI GetKeyboardLayout(DWORD dwLayout)
{
return USER_Driver->pGetKeyboardLayout(dwLayout);
}
/****************************************************************************
* GetKeyboardLayoutNameA (USER32.@)
*/
BOOL WINAPI GetKeyboardLayoutNameA(LPSTR pszKLID)
{
WCHAR buf[KL_NAMELENGTH];
if (GetKeyboardLayoutNameW(buf))
return WideCharToMultiByte( CP_ACP, 0, buf, -1, pszKLID, KL_NAMELENGTH, NULL, NULL ) != 0;
return FALSE;
}
/****************************************************************************
* GetKeyboardLayoutNameW (USER32.@)
*/
BOOL WINAPI GetKeyboardLayoutNameW(LPWSTR pwszKLID)
{
return USER_Driver->pGetKeyboardLayoutName(pwszKLID);
}
/****************************************************************************
* GetKeyNameTextA (USER32.@)
*/
INT WINAPI GetKeyNameTextA(LONG lParam, LPSTR lpBuffer, INT nSize)
{
WCHAR buf[256];
INT ret;
if (!GetKeyNameTextW(lParam, buf, 256))
return 0;
ret = WideCharToMultiByte(CP_ACP, 0, buf, -1, lpBuffer, nSize, NULL, NULL);
if (!ret && nSize)
{
ret = nSize - 1;
lpBuffer[ret] = 0;
}
return ret;
}
/****************************************************************************
* GetKeyNameTextW (USER32.@)
*/
INT WINAPI GetKeyNameTextW(LONG lParam, LPWSTR lpBuffer, INT nSize)
{
return USER_Driver->pGetKeyNameText( lParam, lpBuffer, nSize );
}
/****************************************************************************
* ToUnicode (USER32.@)
*/
INT WINAPI ToUnicode(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
LPWSTR lpwStr, int size, UINT flags)
{
return ToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, GetKeyboardLayout(0));
}
/****************************************************************************
* ToUnicodeEx (USER32.@)
*/
INT WINAPI ToUnicodeEx(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
LPWSTR lpwStr, int size, UINT flags, HKL hkl)
{
return USER_Driver->pToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, hkl);
}
/****************************************************************************
* ToAscii (USER32.@)
*/
INT WINAPI ToAscii( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
LPWORD lpChar, UINT flags )
{
return ToAsciiEx(virtKey, scanCode, lpKeyState, lpChar, flags, GetKeyboardLayout(0));
}
/****************************************************************************
* ToAsciiEx (USER32.@)
*/
INT WINAPI ToAsciiEx( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
LPWORD lpChar, UINT flags, HKL dwhkl )
{
WCHAR uni_chars[2];
INT ret, n_ret;
ret = ToUnicodeEx(virtKey, scanCode, lpKeyState, uni_chars, 2, flags, dwhkl);
if (ret < 0) n_ret = 1; /* FIXME: make ToUnicode return 2 for dead chars */
else n_ret = ret;
WideCharToMultiByte(CP_ACP, 0, uni_chars, n_ret, (LPSTR)lpChar, 2, NULL, NULL);
return ret;
}
/**********************************************************************
* ActivateKeyboardLayout (USER32.@)
*/
HKL WINAPI ActivateKeyboardLayout(HKL hLayout, UINT flags)
{
TRACE_(keyboard)("(%p, %d)\n", hLayout, flags);
return USER_Driver->pActivateKeyboardLayout(hLayout, flags);
}
/***********************************************************************
* GetKeyboardLayoutList (USER32.@)
*
* Return number of values available if either input parm is
* 0, per MS documentation.
*/
UINT WINAPI GetKeyboardLayoutList(INT nBuff, HKL *layouts)
{
TRACE_(keyboard)("(%d,%p)\n",nBuff,layouts);
return USER_Driver->pGetKeyboardLayoutList(nBuff, layouts);
}
/***********************************************************************
* RegisterHotKey (USER32.@)
*/
BOOL WINAPI RegisterHotKey(HWND hwnd,INT id,UINT modifiers,UINT vk)
{
FIXME_(keyboard)("(%p,%d,0x%08x,%d): stub\n",hwnd,id,modifiers,vk);
return TRUE;
}
/***********************************************************************
* UnregisterHotKey (USER32.@)
*/
BOOL WINAPI UnregisterHotKey(HWND hwnd,INT id)
{
FIXME_(keyboard)("(%p,%d): stub\n",hwnd,id);
return TRUE;
}
/***********************************************************************
* LoadKeyboardLayoutW (USER32.@)
*/
HKL WINAPI LoadKeyboardLayoutW(LPCWSTR pwszKLID, UINT Flags)
{
TRACE_(keyboard)("(%s, %d)\n", debugstr_w(pwszKLID), Flags);
return USER_Driver->pLoadKeyboardLayout(pwszKLID, Flags);
}
/***********************************************************************
* LoadKeyboardLayoutA (USER32.@)
*/
HKL WINAPI LoadKeyboardLayoutA(LPCSTR pwszKLID, UINT Flags)
{
HKL ret;
UNICODE_STRING pwszKLIDW;
if (pwszKLID) RtlCreateUnicodeStringFromAsciiz(&pwszKLIDW, pwszKLID);
else pwszKLIDW.Buffer = NULL;
ret = LoadKeyboardLayoutW(pwszKLIDW.Buffer, Flags);
RtlFreeUnicodeString(&pwszKLIDW);
return ret;
}
/***********************************************************************
* UnloadKeyboardLayout (USER32.@)
*/
BOOL WINAPI UnloadKeyboardLayout(HKL hkl)
{
TRACE_(keyboard)("(%p)\n", hkl);
return USER_Driver->pUnloadKeyboardLayout(hkl);
}
typedef struct __TRACKINGLIST {
TRACKMOUSEEVENT tme;
POINT pos; /* center of hover rectangle */
INT iHoverTime; /* elapsed time the cursor has been inside of the hover rect */
} _TRACKINGLIST;
static _TRACKINGLIST TrackingList[10];
static int iTrackMax = 0;
static UINT_PTR timer;
static const INT iTimerInterval = 50; /* msec for timer interval */
static void CALLBACK TrackMouseEventProc(HWND hwndUnused, UINT uMsg, UINT_PTR idEvent,
DWORD dwTime)
{
int i = 0;
POINT pos;
POINT posClient;
HWND hwnd;
INT nonclient;
INT hoverwidth = 0, hoverheight = 0;
RECT client;
GetCursorPos(&pos);
hwnd = WindowFromPoint(pos);
SystemParametersInfoA(SPI_GETMOUSEHOVERWIDTH, 0, &hoverwidth, 0);
SystemParametersInfoA(SPI_GETMOUSEHOVERHEIGHT, 0, &hoverheight, 0);
/* loop through tracking events we are processing */
while (i < iTrackMax) {
if (TrackingList[i].tme.dwFlags & TME_NONCLIENT) {
nonclient = 1;
}
else {
nonclient = 0;
}
/* see if this tracking event is looking for TME_LEAVE and that the */
/* mouse has left the window */
if (TrackingList[i].tme.dwFlags & TME_LEAVE) {
if (TrackingList[i].tme.hwndTrack != hwnd) {
if (nonclient) {
PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
}
else {
PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
}
/* remove the TME_LEAVE flag */
TrackingList[i].tme.dwFlags ^= TME_LEAVE;
}
else {
GetClientRect(hwnd, &client);
MapWindowPoints(hwnd, NULL, (LPPOINT)&client, 2);
if(PtInRect(&client, pos)) {
if (nonclient) {
PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
/* remove the TME_LEAVE flag */
TrackingList[i].tme.dwFlags ^= TME_LEAVE;
}
}
else {
if (!nonclient) {
PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
/* remove the TME_LEAVE flag */
TrackingList[i].tme.dwFlags ^= TME_LEAVE;
}
}
}
}
/* see if we are tracking hovering for this hwnd */
if(TrackingList[i].tme.dwFlags & TME_HOVER) {
/* add the timer interval to the hovering time */
TrackingList[i].iHoverTime+=iTimerInterval;
/* has the cursor moved outside the rectangle centered around pos? */
if((abs(pos.x - TrackingList[i].pos.x) > (hoverwidth / 2.0))
|| (abs(pos.y - TrackingList[i].pos.y) > (hoverheight / 2.0)))
{
/* record this new position as the current position and reset */
/* the iHoverTime variable to 0 */
TrackingList[i].pos = pos;
TrackingList[i].iHoverTime = 0;
}
/* has the mouse hovered long enough? */
if(TrackingList[i].iHoverTime <= TrackingList[i].tme.dwHoverTime)
{
posClient.x = pos.x;
posClient.y = pos.y;
ScreenToClient(hwnd, &posClient);
if (nonclient) {
PostMessageW(TrackingList[i].tme.hwndTrack, WM_NCMOUSEHOVER,
get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
}
else {
PostMessageW(TrackingList[i].tme.hwndTrack, WM_MOUSEHOVER,
get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
}
/* stop tracking mouse hover */
TrackingList[i].tme.dwFlags ^= TME_HOVER;
}
}
/* see if we are still tracking TME_HOVER or TME_LEAVE for this entry */
if((TrackingList[i].tme.dwFlags & TME_HOVER) ||
(TrackingList[i].tme.dwFlags & TME_LEAVE)) {
i++;
} else { /* remove this entry from the tracking list */
TrackingList[i] = TrackingList[--iTrackMax];
}
}
/* stop the timer if the tracking list is empty */
if(iTrackMax == 0) {
KillTimer(0, timer);
timer = 0;
}
}
/***********************************************************************
* TrackMouseEvent [USER32]
*
* Requests notification of mouse events
*
* During mouse tracking WM_MOUSEHOVER or WM_MOUSELEAVE events are posted
* to the hwnd specified in the ptme structure. After the event message
* is posted to the hwnd, the entry in the queue is removed.
*
* If the current hwnd isn't ptme->hwndTrack the TME_HOVER flag is completely
* ignored. The TME_LEAVE flag results in a WM_MOUSELEAVE message being posted
* immediately and the TME_LEAVE flag being ignored.
*
* PARAMS
* ptme [I,O] pointer to TRACKMOUSEEVENT information structure.
*
* RETURNS
* Success: non-zero
* Failure: zero
*
*/
BOOL WINAPI
TrackMouseEvent (TRACKMOUSEEVENT *ptme)
{
DWORD flags = 0;
int i = 0;
BOOL cancel = 0, hover = 0, leave = 0, query = 0, nonclient = 0, inclient = 0;
HWND hwnd;
POINT pos;
RECT client;
pos.x = 0;
pos.y = 0;
SetRectEmpty(&client);
TRACE("%lx, %lx, %p, %lx\n", ptme->cbSize, ptme->dwFlags, ptme->hwndTrack, ptme->dwHoverTime);
if (ptme->cbSize != sizeof(TRACKMOUSEEVENT)) {
WARN("wrong TRACKMOUSEEVENT size from app\n");
SetLastError(ERROR_INVALID_PARAMETER); /* FIXME not sure if this is correct */
return FALSE;
}
flags = ptme->dwFlags;
/* if HOVER_DEFAULT was specified replace this with the systems current value */
if(ptme->dwHoverTime == HOVER_DEFAULT)
SystemParametersInfoA(SPI_GETMOUSEHOVERTIME, 0, &(ptme->dwHoverTime), 0);
GetCursorPos(&pos);
hwnd = WindowFromPoint(pos);
if ( flags & TME_CANCEL ) {
flags &= ~ TME_CANCEL;
cancel = 1;
}
if ( flags & TME_HOVER ) {
flags &= ~ TME_HOVER;
hover = 1;
}
if ( flags & TME_LEAVE ) {
flags &= ~ TME_LEAVE;
leave = 1;
}
if ( flags & TME_NONCLIENT ) {
flags &= ~ TME_NONCLIENT;
nonclient = 1;
}
/* fill the TRACKMOUSEEVENT struct with the current tracking for the given hwnd */
if ( flags & TME_QUERY ) {
flags &= ~ TME_QUERY;
query = 1;
i = 0;
/* Find the tracking list entry with the matching hwnd */
while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
i++;
}
/* hwnd found, fill in the ptme struct */
if(i < iTrackMax)
*ptme = TrackingList[i].tme;
else
ptme->dwFlags = 0;
return TRUE; /* return here, TME_QUERY is retrieving information */
}
if ( flags )
FIXME("Unknown flag(s) %08lx\n", flags );
if(cancel) {
/* find a matching hwnd if one exists */
i = 0;
while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
i++;
}
if(i < iTrackMax) {
TrackingList[i].tme.dwFlags &= ~(ptme->dwFlags & ~TME_CANCEL);
/* if we aren't tracking on hover or leave remove this entry */
if(!((TrackingList[i].tme.dwFlags & TME_HOVER) ||
(TrackingList[i].tme.dwFlags & TME_LEAVE)))
{
TrackingList[i] = TrackingList[--iTrackMax];
if(iTrackMax == 0) {
KillTimer(0, timer);
timer = 0;
}
}
}
} else {
/* see if hwndTrack isn't the current window */
if(ptme->hwndTrack != hwnd) {
if(leave) {
if(nonclient) {
PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
}
else {
PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
}
}
} else {
GetClientRect(ptme->hwndTrack, &client);
MapWindowPoints(ptme->hwndTrack, NULL, (LPPOINT)&client, 2);
if(PtInRect(&client, pos)) {
inclient = 1;
}
if(nonclient && inclient) {
PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
return TRUE;
}
else if(!nonclient && !inclient) {
PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
return TRUE;
}
/* See if this hwnd is already being tracked and update the tracking flags */
for(i = 0; i < iTrackMax; i++) {
if(TrackingList[i].tme.hwndTrack == ptme->hwndTrack) {
TrackingList[i].tme.dwFlags = 0;
if(hover) {
TrackingList[i].tme.dwFlags |= TME_HOVER;
TrackingList[i].tme.dwHoverTime = ptme->dwHoverTime;
}
if(leave)
TrackingList[i].tme.dwFlags |= TME_LEAVE;
if(nonclient)
TrackingList[i].tme.dwFlags |= TME_NONCLIENT;
/* reset iHoverTime as per winapi specs */
TrackingList[i].iHoverTime = 0;
return TRUE;
}
}
/* if the tracking list is full return FALSE */
if (iTrackMax == sizeof (TrackingList) / sizeof(*TrackingList)) {
return FALSE;
}
/* Adding new mouse event to the tracking list */
TrackingList[iTrackMax].tme = *ptme;
/* Initialize HoverInfo variables even if not hover tracking */
TrackingList[iTrackMax].iHoverTime = 0;
TrackingList[iTrackMax].pos = pos;
iTrackMax++;
if (!timer) {
timer = SetTimer(0, 0, iTimerInterval, TrackMouseEventProc);
}
}
}
return TRUE;
}
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