WindowsXP-SP1/shell/explorer/trayitem.cpp
2020-09-30 16:53:49 +02:00

341 lines
9.0 KiB
C++

#include "cabinet.h"
#include "traycmn.h"
#include "trayitem.h"
#include "shellapi.h"
//
// CTrayItem members...
//
DWORD CTrayItem::_GetStateFlag(ICONSTATEFLAG sf)
{
DWORD dwFlag = 0;
switch (sf)
{
case TIF_HIDDEN:
dwFlag = NIS_HIDDEN;
break;
case TIF_DEMOTED:
dwFlag = NISP_DEMOTED;
break;
case TIF_STARTUPICON:
dwFlag = NISP_STARTUPICON;
break;
case TIF_SHARED:
dwFlag = NIS_SHAREDICON;
break;
case TIF_SHAREDICONSOURCE:
dwFlag = NISP_SHAREDICONSOURCE;
break;
case TIF_ONCEVISIBLE:
dwFlag = NISP_ONCEVISIBLE;
break;
case TIF_ITEMCLICKED:
dwFlag = NISP_ITEMCLICKED;
break;
case TIF_ITEMSAMEICONMODIFY:
dwFlag = NISP_ITEMSAMEICONMODIFY;
break;
}
ASSERT(dwFlag);
return dwFlag;
}
void CTrayItem::_SetIconState(ICONSTATEFLAG sf, BOOL bSet)
{
DWORD dwFlag = _GetStateFlag(sf);
ASSERT(dwFlag);
if (bSet)
dwState |= (dwFlag & 0xFFFFFFFF);
else
dwState &= ~dwFlag;
}
BOOL CTrayItem::_CheckIconState(ICONSTATEFLAG sf)
{
DWORD dwFlag = _GetStateFlag(sf);
ASSERT(dwFlag);
return ((dwState & dwFlag) != 0);
}
//
// CTrayItemManager members
//
CTrayItem * CTrayItemManager::GetItemData(INT_PTR i, BOOL byIndex, HWND hwndToolbar)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.lParam = 0;
tbbi.dwMask = TBIF_LPARAM;
if (byIndex)
tbbi.dwMask |= TBIF_BYINDEX;
SendMessage(hwndToolbar, TB_GETBUTTONINFO, i, (LPARAM)&tbbi);
return (CTrayItem *)(void *)tbbi.lParam;
}
INT_PTR CTrayItemManager::FindItemAssociatedWithGuid(GUID guidItemToCheck)
{
if (guidItemToCheck == GUID_NULL)
return -1;
for (INT_PTR i = GetItemCount()-1; i >= 0; i--)
{
CTrayItem * pti = GetItemDataByIndex(i);
if (pti && pti->IsGuidItemValid() && IsEqualGUID(pti->guidItem, guidItemToCheck))
return i;
}
return -1;
}
INT_PTR CTrayItemManager::FindItemAssociatedWithTimer(UINT_PTR uIconDemoteTimerID)
{
for (INT_PTR i = GetItemCount()-1; i >= 0; i--)
{
CTrayItem * pti = GetItemDataByIndex(i);
if (pti && pti->uIconDemoteTimerID == uIconDemoteTimerID)
return i;
}
return -1;
}
INT_PTR CTrayItemManager::FindItemAssociatedWithHwndUid(HWND hwnd, UINT uID)
{
for (INT_PTR i = GetItemCount() - 1; i >= 0; --i)
{
CTrayItem * pti = GetItemDataByIndex(i);
if (pti && (pti->hWnd == hwnd) && (pti->uID == uID))
{
return i;
}
}
return -1;
}
// Decides if there are as many "TNUP_AUTOMATIC" demoted items in the tray, above the
// threshold that the user has specified...
// Returns TRUE if there is any TNUP_DEMOTED item in the list...
BOOL CTrayItemManager::DemotedItemsPresent(int nMinDemotedItemsThreshold)
{
ASSERT(nMinDemotedItemsThreshold >= 0);
INT_PTR cIcons = 0;
INT_PTR nItems = SendMessage(m_hwndToolbar, TB_BUTTONCOUNT, 0, 0L);
for (INT_PTR i = 0; i < nItems; i++)
{
CTrayItem * pti = GetItemDataByIndex(i);
ASSERT(pti);
// If the item is set to ALWAYS HIDE, then it must be shown in demoted state...
if (pti->dwUserPref == TNUP_DEMOTED)
{
return TRUE;
}
// If the item is demoted, then only if there are enough demoted items must
// they all be shown in demoted state...
else if (pti->IsDemoted())
{
cIcons++;
if (cIcons >= nMinDemotedItemsThreshold)
return TRUE;
}
}
return FALSE;
}
// Works irrespective of whether AutoTray is enabled or not...
INT_PTR CTrayItemManager::_GetItemCountHelper(int nItemFlag, int nItemCountThreshold)
{
INT_PTR cIcons = 0;
INT_PTR nItems = SendMessage(m_hwndToolbar, TB_BUTTONCOUNT, 0, 0L);
switch(nItemFlag)
{
case GIC_ALL:
cIcons = nItems;
break;
case GIC_PROMOTED:
case GIC_DEMOTED:
for (INT_PTR i = nItems-1; i>= 0; i--)
{
CTrayItem * pti = GetItemDataByIndex(i);
if (nItemFlag == GIC_PROMOTED)
{
if (pti && !pti->IsDemoted() && !pti->IsHidden())
cIcons ++;
}
else
{
if (pti && pti->IsDemoted())
cIcons++;
}
if (nItemCountThreshold != -1 && cIcons >= nItemCountThreshold)
break;
}
break;
}
return cIcons;
}
void CTrayItemManager::SetTBBtnImage(INT_PTR iIndex, int iImage)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_IMAGE | TBIF_BYINDEX;
tbbi.iImage = iImage;
SendMessage(m_hwndToolbar, TB_SETBUTTONINFO, iIndex, (LPARAM)&tbbi);
}
int CTrayItemManager::GetTBBtnImage(INT_PTR iIndex, BOOL fByIndex /* = TRUE */)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_IMAGE;
if (fByIndex)
tbbi.dwMask |= TBIF_BYINDEX;
SendMessage(m_hwndToolbar, TB_GETBUTTONINFO, iIndex, (LPARAM)&tbbi);
return tbbi.iImage;
}
BOOL CTrayItemManager::SetTBBtnStateHelper(INT_PTR iIndex, BYTE fsState, BOOL_PTR bSet)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_STATE | TBIF_BYINDEX;
// Get the original state of the button
SendMessage(m_hwndToolbar, TB_GETBUTTONINFO, iIndex, (LPARAM)&tbbi);
// Or the new state to the original state
BYTE fsStateOld = tbbi.fsState;
if (bSet)
tbbi.fsState |= fsState;
else
tbbi.fsState &= ~fsState;
if (tbbi.fsState ^ fsStateOld)
{
SendMessage(m_hwndToolbar, TB_SETBUTTONINFO, iIndex, (LPARAM)&tbbi);
return TRUE;
}
return FALSE;
}
void CTrayItemManager::SetTBBtnText(INT_PTR iIndex, LPTSTR pszText)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_TEXT | TBIF_BYINDEX;
tbbi.pszText = pszText;
tbbi.cchText = -1;
SendMessage(m_hwndToolbar, TB_SETBUTTONINFO, iIndex, (LPARAM)&tbbi);
}
/*
BOOL CTrayItemManager::GetTBBtnText(INT_PTR iIndex, TCHAR * pszBuffer, INT nBufferLength)
{
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_BYINDEX | TBIF_TEXT;
tbbi.pszText = pszBuffer;
tbbi.cchText = nBufferLength;
if (SendMessage(m_hwndToolbar, TB_GETBUTTONINFO, iIndex, (LPARAM)&tbbi) != -1)
return TRUE;
pszBuffer[0] = TEXT('\0');
return FALSE;
}
*/
int CTrayItemManager::FindImageIndex(HICON hIcon, BOOL fSetAsSharedSource)
{
INT_PTR i;
INT_PTR iCount = GetItemCount();
for (i = 0; i < iCount; i++)
{
CTrayItem * pti = GetItemDataByIndex(i);
if (pti && pti->hIcon == hIcon)
{
// if we're supposed to mark this as a shared icon source and its not itself a shared icon
// target, mark it now. this is to allow us to recognize when the source icon changes and
// that we can know that we need to find other indicies and update them too.
if (fSetAsSharedSource && !pti->IsIconShared())
pti->SetSharedIconSource(TRUE);
return GetTBBtnImage(i);
}
}
return -1;
}
// TO DO szText can be replaced by pti->szIconText
BOOL CTrayItemManager::GetTrayItem(INT_PTR nIndex, CNotificationItem * pni, BOOL * pbStat)
{
if (nIndex < 0 || nIndex >= GetItemCount())
{
*pbStat = FALSE;
return FALSE;
}
ASSERT(pni->hIcon == NULL); // else we're going to leak it
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_BYINDEX | TBIF_IMAGE | TBIF_LPARAM | TBIF_TEXT;
TCHAR szText[80] = {0};
tbbi.pszText = szText;
tbbi.cchText = ARRAYSIZE(szText);
if (SendMessage(m_hwndToolbar, TB_GETBUTTONINFO, nIndex, (LPARAM)&tbbi) != -1)
{
CTrayItem * pti = (CTrayItem *)tbbi.lParam;
// don't expose the NIS_HIDDEN icons
if (pti && !pti->IsHidden())
{
pni->hWnd = pti->hWnd;
pni->uID = pti->uID;
pni->hIcon = ImageList_GetIcon(m_himlIcons, tbbi.iImage, ILD_NORMAL);
pni->dwUserPref = pti->dwUserPref;
pni->SetExeName(pti->szExeName);
pni->SetIconText(szText);
memcpy(&(pni->guidItem), &(pti->guidItem), sizeof(pti->guidItem));
*pbStat = TRUE;
return TRUE;
}
}
*pbStat = FALSE;
return TRUE;
}