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windows-nt/Source/XPSP1/NT/admin/activec/conui/controls.cpp

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// Controls.cpp : implementation file
//
//+-------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1999
//
// File: Controls.cpp
//
// Contents: General window controls used in the slate AMC console
//
// History: 19-Dec-96 WayneSc Created
//
//
//--------------------------------------------------------------------------
#include "stdafx.h"
#include "docksite.h"
#include "Controls.h"
#include "resource.h"
#include "amc.h"
#include "tbtrack.h"
#include "mainfrm.h"
#include "fontlink.h"
#include "menubar.h"
#include <oleacc.h>
#include "guidhelp.h"
#include "util.h" // StripTrailingWhitespace
/*
* if we're supporting old platforms, we need to get MSAA definitions
* from somewhere other than winuser.h
*/
#if (_WINNT_WIN32 < 0x0500)
#include <winable.h>
#endif
#ifdef DBG
CTraceTag tagToolbarAccessibility (_T("Accessibility"), _T("Toolbar"));
#endif
/*+-------------------------------------------------------------------------*
* CMMCToolBarAccServer
*
* Proxy for the accessibility interface IAccPropServer for CMMCToolBarCtrlEx.
*--------------------------------------------------------------------------*/
class CMMCToolBarAccServer :
public IAccPropServer,
public CComObjectRoot,
public CComObjectObserver,
public CTiedComObject<CMMCToolBarCtrlEx>
{
typedef CMMCToolBarAccServer ThisClass;
typedef CMMCToolBarCtrlEx CMyTiedObject;
protected:
CMMCToolBarAccServer()
{
Trace (tagToolbarAccessibility, _T("Creating CMMCToolBarAccServer (0x%p)"), this);
// add itself as an observer for com object events
GetComObjectEventSource().AddObserver(*static_cast<CComObjectObserver*>(this));
}
~CMMCToolBarAccServer()
{
Trace (tagToolbarAccessibility, _T("Destroying CMMCToolBarAccServer (0x%p)"), this);
}
/***************************************************************************\
*
* METHOD: ScOnDisconnectObjects
*
* PURPOSE: invoked when observed event (request to disconnect) occures
* Disconnects from external connections
*
* PARAMETERS:
*
* RETURNS:
* SC - result code
*
\***************************************************************************/
virtual ::SC ScOnDisconnectObjects()
{
DECLARE_SC(sc, TEXT("CMMCIDispatchImpl<_ComInterface>::ScOnDisconnectObjects"));
// QI for IUnknown
IUnknownPtr spUnknown = this;
// sanity check
sc = ScCheckPointers( spUnknown, E_UNEXPECTED );
if (sc)
return sc;
// cutt own references
sc = CoDisconnectObject( spUnknown, 0/*dwReserved*/ );
if (sc)
return sc;
return sc;
}
public:
BEGIN_COM_MAP(ThisClass)
COM_INTERFACE_ENTRY(IAccPropServer)
END_COM_MAP()
DECLARE_NOT_AGGREGATABLE(ThisClass)
public:
// *** IAccPropServer methods ***
MMC_METHOD5 (GetPropValue, const BYTE* /*pIDString*/, DWORD /*dwIDStringLen*/, MSAAPROPID /*idProp*/, VARIANT* /*pvarValue*/, BOOL* /*pfGotProp*/)
};
/////////////////////////////////////////////////////////////////////////////
// CDescriptionCtrl
CDescriptionCtrl::CDescriptionCtrl() :
m_cxMargin (0),
m_cyText (0),
m_cyRequired (0)
{
}
CDescriptionCtrl::~CDescriptionCtrl()
{
}
BEGIN_MESSAGE_MAP(CDescriptionCtrl, CStatic)
//{{AFX_MSG_MAP(CDescriptionCtrl)
ON_WM_NCHITTEST()
ON_WM_CREATE()
ON_WM_SETTINGCHANGE()
ON_WM_DESTROY()
ON_WM_SIZE()
//}}AFX_MSG_MAP
ON_WM_DRAWITEM_REFLECT()
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDescriptionCtrl message handlers
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::PreCreateWindow
*
*
*--------------------------------------------------------------------------*/
BOOL CDescriptionCtrl::PreCreateWindow(CREATESTRUCT& cs)
{
cs.style |= SS_NOPREFIX | SS_CENTERIMAGE | SS_ENDELLIPSIS |
SS_LEFTNOWORDWRAP | SS_OWNERDRAW | WS_CLIPSIBLINGS;
cs.dwExStyle |= WS_EX_STATICEDGE;
return (CStatic::PreCreateWindow (cs));
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::OnCreate
*
* WM_CREATE handler for CDescriptionCtrl.
*--------------------------------------------------------------------------*/
int CDescriptionCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CStatic::OnCreate(lpCreateStruct) == -1)
return -1;
CreateFont();
return 0;
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::OnDestroy
*
* WM_DESTROY handler for CDescriptionCtrl.
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::OnDestroy()
{
CStatic::OnDestroy();
DeleteFont();
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::OnNcHitTest
*
* WM_NCHITTEST handler for CDescriptionCtrl.
*--------------------------------------------------------------------------*/
UINT CDescriptionCtrl::OnNcHitTest(CPoint point)
{
return (HTCLIENT);
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::OnSettingChange
*
* WM_SETTINGCHANGE handler for CDescriptionCtrl.
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
CStatic::OnSettingChange(uFlags, lpszSection);
if (uFlags == SPI_SETNONCLIENTMETRICS)
{
DeleteFont ();
CreateFont ();
}
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::OnSize
*
* WM_SIZE handler for CDescriptionCtrl.
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::OnSize(UINT nType, int cx, int cy)
{
CStatic::OnSize(nType, cx, cy);
/*
* Completely redraw when the size changes, so the ellipsis will
* be drawn correctly. Another way to do this would be to use
* CS_HREDRAW | CS_VREDRAW, but it's too big a pain to re-register
* the static control. This'll do just fine.
*/
InvalidateRect (NULL);
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::DrawItem
*
* WM_DRAWITEM handler for CDescriptionCtrl.
*
* The description control needs to be ownerdraw for a couple of reasons:
*
* 1. If any of the text contains characters that can't be rendered by
* the default font, we won't draw them correctly.
*
* 2. If any of the text contains right-to-left reading text (e.g. Arabic
* or Hebrew), system mirroring code will incorrectly mix the console
* and snap-in text (bug 365469). The static control will draw the text
* in one fell swoop, but we can get around the problem if we draw
* the text ourselves in two steps: first console text, then snap-in
* text.
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::DrawItem(LPDRAWITEMSTRUCT lpdis)
{
/*
* Bug 410450: When the system is under stress, we might not get a
* valid DC. If we don't there's nothing we can do, so short out (and
* avoid an AV when we later dereference a NULL CDC*).
*/
CDC* pdcWindow = CDC::FromHandle (lpdis->hDC);
if (pdcWindow == NULL)
return;
/*
* if we don't have any text, just clear the background
*/
bool fHasConsoleText = !m_strConsoleText.IsEmpty();
bool fHasSnapinText = !m_strSnapinText.IsEmpty();
if (!fHasConsoleText && !fHasSnapinText)
{
FillRect (lpdis->hDC, &lpdis->rcItem, GetSysColorBrush (COLOR_3DFACE));
return;
}
/*
* figure out the text rectangle; it will be one line high, vertically
* centered within the window
*/
CRect rectClient;
GetClientRect (rectClient);
const int cxClient = rectClient.Width();
const int cyClient = rectClient.Height();
CRect rectText = rectClient;
rectText.left += m_cxMargin;
rectText.bottom = m_cyText;
rectText.OffsetRect (0, (cyClient - rectText.Height()) / 2);
const DWORD dwFlags = DT_LEFT | DT_TOP | DT_SINGLELINE |
DT_NOPREFIX | DT_END_ELLIPSIS;
USES_CONVERSION;
CFontLinker fl;
/*
* double-buffer drawing for flicker-free redraw
*/
CDC dcMem;
dcMem.CreateCompatibleDC (pdcWindow);
if (dcMem.GetSafeHdc() == NULL)
return;
CBitmap bmpMem;
bmpMem.CreateCompatibleBitmap (&dcMem, cxClient, cyClient);
if (bmpMem.GetSafeHandle() == NULL)
return;
/*
* put the right font in the DC, and clear it out
*/
CFont* pOldFont = dcMem.SelectObject (&m_font);
CBitmap* pOldBitmap = dcMem.SelectObject (&bmpMem);
dcMem.PatBlt (0, 0, cxClient, cyClient, WHITENESS);
/*
* if we have console text draw it and update the text rectangle
* so snap-in text (if any) will be drawn in the right place
*/
if (fHasConsoleText)
{
/*
* create a CRichText object for the console text and let
* the font linker parse it into bite-size chunks
*/
CRichText rt (dcMem, T2CW (static_cast<LPCTSTR>(m_strConsoleText)));
bool fComposed = fl.ComposeRichText (rt);
/*
* draw the console text and adjust the text rectancle in
* preparation for drawing the snap-in text
*/
if (fComposed && !rt.IsDefaultFontSufficient())
{
CRect rectRemaining;
rt.Draw (rectText, dwFlags, rectRemaining);
rectText.left = rectRemaining.left;
}
else
{
dcMem.DrawText (m_strConsoleText, rectText, dwFlags | DT_CALCRECT);
dcMem.DrawText (m_strConsoleText, rectText, dwFlags);
rectText.left = rectText.right;
rectText.right = rectClient.right;
}
/*
* leave some space between the console text and the snap-in text
*/
rectText.left += 2*m_cxMargin;
}
/*
* draw the snap-in text, if any
*/
if (fHasSnapinText)
{
/*
* create a CRichText object for the console text and let
* the font linker parse it into bite-size chunks
*/
CRichText rt (dcMem, T2CW (static_cast<LPCTSTR>(m_strSnapinText)));
bool fComposed = fl.ComposeRichText (rt);
/*
* draw the snap-in text
*/
if (fComposed && !rt.IsDefaultFontSufficient())
rt.Draw (rectText, dwFlags);
else
dcMem.DrawText (m_strSnapinText, rectText, dwFlags);
}
/*
* blt to the screen
*/
pdcWindow->BitBlt (0, 0, cxClient, cyClient, &dcMem, 0, 0, SRCCOPY);
/*
* restore the original font
*/
dcMem.SelectObject (pOldFont);
dcMem.SelectObject (pOldBitmap);
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::CreateFont
*
*
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::CreateFont ()
{
/*
* create a copy of the icon title font
*/
LOGFONT lf;
SystemParametersInfo (SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, false);
m_font.CreateFontIndirect (&lf);
/*
* figure out how much space we need to fully display our text
*/
TCHAR ch = _T('0');
CWindowDC dc(this);
CFont* pFont = dc.SelectObject (&m_font);
m_cyText = dc.GetTextExtent(&ch, 1).cy;
ch = _T(' ');
m_cxMargin = 2 * dc.GetTextExtent(&ch, 1).cx;
CRect rectRequired (0, 0, 0, m_cyText + 2*GetSystemMetrics(SM_CYEDGE));
AdjustWindowRectEx (rectRequired, GetStyle(), false, GetExStyle());
m_cyRequired = rectRequired.Height();
dc.SelectObject (pFont);
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::DeleteFont
*
*
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::DeleteFont ()
{
m_font.DeleteObject();
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::ScOnSelectedItemTextChanged
*
* This method observes the text of the selected item in the tree control.
* The text is reflected in the description bar.
*--------------------------------------------------------------------------*/
SC CDescriptionCtrl::ScOnSelectedItemTextChanged (LPCTSTR pszSelectedItemText)
{
if (m_strConsoleText != pszSelectedItemText)
{
m_strConsoleText = pszSelectedItemText;
Invalidate();
}
return (S_OK);
}
/*+-------------------------------------------------------------------------*
* CDescriptionCtrl::SetSnapinText
*
*
*--------------------------------------------------------------------------*/
void CDescriptionCtrl::SetSnapinText (const CString& strSnapinText)
{
if (m_strSnapinText != strSnapinText)
{
m_strSnapinText = strSnapinText;
Invalidate();
}
}
/////////////////////////////////////////////////////////////////////////////
// CToolBarCtrlEx
CToolBarCtrlEx::CToolBarCtrlEx()
{
m_sizeBitmap.cx = 16;
m_sizeBitmap.cy = 16; // docs say 15, but code in toolbar.c says 16
m_fMirrored = false;
m_pRebar = NULL;
m_cx = 0;
}
CToolBarCtrlEx::~CToolBarCtrlEx()
{
}
BEGIN_MESSAGE_MAP(CToolBarCtrlEx, CToolBarCtrlEx::BaseClass)
//{{AFX_MSG_MAP(CToolBarCtrlEx)
ON_MESSAGE(WM_IDLEUPDATECMDUI, OnIdleUpdateCmdUI)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CToolBarCtrlEx message handlers
BOOL CToolBarCtrlEx::Create(LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
BOOL bRtn=FALSE;
if (!pParentWnd)
{
ASSERT(pParentWnd); // Invalid Parent
}
else
{
// Initialise the new common controls
INITCOMMONCONTROLSEX icex;
icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
icex.dwICC = ICC_BAR_CLASSES;
if (InitCommonControlsEx(&icex))
{
// Add toolbar styles to the dwstyle
dwStyle |= WS_CHILD | TBSTYLE_FLAT | WS_CLIPCHILDREN |
WS_CLIPSIBLINGS | CCS_NODIVIDER | CCS_NORESIZE;
if (CWnd::CreateEx(WS_EX_TOOLWINDOW | WS_EX_NOPARENTNOTIFY,
TOOLBARCLASSNAME,
lpszWindowName,
dwStyle,
rect,
pParentWnd,
nID))
{
bRtn=TRUE;
//See if toolbar is mirrored or not
m_fMirrored = GetExStyle() & WS_EX_LAYOUTRTL;
// Tells the toolbar what version we are.
SetButtonStructSize(sizeof(TBBUTTON));
//REVIEW This may not need to be here. I'm defaulting buttons w/ text
//to only have one row. This may need to be configurable.
SetMaxTextRows(1);
CRebarDockWindow* pRebarDock = (CRebarDockWindow*) pParentWnd;
if (pRebarDock)
m_pRebar = pRebarDock->GetRebar();
}
}
}
return bRtn;
}
void CToolBarCtrlEx::UpdateToolbarSize(void)
{
/*
* get the right edge of the right-most visible button
*/
int cx = 0;
for (int i = GetButtonCount()-1; i >= 0; i--)
{
RECT rcButton;
if (GetItemRect (i, &rcButton))
{
cx = rcButton.right;
break;
}
}
ASSERT (IsWindow (m_pRebar->GetSafeHwnd()));
/*
* if the width has changed, update the band
*/
if (m_cx != cx)
{
m_cx = cx;
// Set values unique to the band with the toolbar;
REBARBANDINFO rbBand;
rbBand.cbSize = sizeof (rbBand);
rbBand.fMask = RBBIM_SIZE | RBBIM_CHILDSIZE;
rbBand.cx = m_cx;
rbBand.cxMinChild = m_cx;
rbBand.cyMinChild = HIWORD (GetButtonSize());
int iBand = GetBandIndex();
if (iBand != -1)
m_pRebar->SetBandInfo (iBand, &rbBand);
}
}
bool CToolBarCtrlEx::IsBandVisible()
{
return (GetBandIndex() != -1);
}
int CToolBarCtrlEx::GetBandIndex()
{
REBARBANDINFO rbBand;
rbBand.cbSize = sizeof(REBARBANDINFO);
rbBand.fMask = RBBIM_CHILD;
if ( m_pRebar == NULL )
return (-1);
int nBands = m_pRebar->GetBandCount ();
for (int i = 0; i < nBands; i++)
{
if (m_pRebar->GetBandInfo (i, &rbBand) && (rbBand.hwndChild == m_hWnd))
return (i);
}
return (-1);
}
void CToolBarCtrlEx::Show(BOOL bShow, bool bAddToolbarInNewLine)
{
if ((m_pRebar == NULL) || !::IsWindow(m_pRebar->m_hWnd))
{
ASSERT(FALSE); // Invalid rebar window handle
return;
}
if (bShow)
{
if (false == IsBandVisible())
{
REBARBANDINFO rbBand;
ZeroMemory(&rbBand, sizeof(rbBand));
rbBand.cbSize = sizeof(REBARBANDINFO);
rbBand.fMask = RBBIM_CHILD | RBBIM_SIZE | RBBIM_CHILDSIZE | RBBIM_ID | RBBIM_STYLE;
rbBand.hwndChild = m_hWnd;
rbBand.wID = GetWindowLong (m_hWnd, GWL_ID);
rbBand.cx = m_cx;
rbBand.cxMinChild = m_cx;
rbBand.cyMinChild = HIWORD (GetButtonSize());
rbBand.fStyle = RBBS_NOGRIPPER;
if (bAddToolbarInNewLine)
{
// Insert this toolbar in new line.
rbBand.fStyle |= RBBS_BREAK;
}
m_pRebar->InsertBand (&rbBand);
}
}
else
{
int iBand = GetBandIndex();
ASSERT(iBand != -1);
if (iBand != -1)
m_pRebar->DeleteBand (iBand);
}
}
void CToolBarCtrlEx::OnUpdateCmdUI(CFrameWnd* pTarget, BOOL bDisableIfNoHndler)
{
CToolCmdUIEx state;
state.m_pOther = this;
state.m_nIndexMax = (UINT)DefWindowProc(TB_BUTTONCOUNT, 0, 0);
for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax; state.m_nIndex++)
{
// get buttons state
TBBUTTON button;
memset(&button, 0, sizeof(TBBUTTON));
GetButton(state.m_nIndex, &button);
state.m_nID = button.idCommand;
// ignore separators
if (!(button.fsStyle & TBSTYLE_SEP))
{
// allow the toolbar itself to have update handlers
if (CWnd::OnCmdMsg(state.m_nID, CN_UPDATE_COMMAND_UI, &state, NULL))
continue;
// allow the owner to process the update
state.DoUpdate(pTarget, bDisableIfNoHndler);
}
}
// update the dialog controls added to the toolbar
UpdateDialogControls(pTarget, bDisableIfNoHndler);
}
LRESULT CToolBarCtrlEx::OnIdleUpdateCmdUI(WPARAM wParam, LPARAM)
{
/*
// handle delay hide/show
BOOL bVis = GetStyle() & WS_VISIBLE;
UINT swpFlags = 0;
if ((m_nStateFlags & delayHide) && bVis)
swpFlags = SWP_HIDEWINDOW;
else if ((m_nStateFlags & delayShow) && !bVis)
swpFlags = SWP_SHOWWINDOW;
m_nStateFlags &= ~(delayShow|delayHide);
if (swpFlags != 0)
{
SetWindowPos(NULL, 0, 0, 0, 0, swpFlags|
SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE);
}
*/
// The code below updates the menus (especially the child-frame
// system menu when the frame is maximized).
// the style must be visible and if it is docked
// the dockbar style must also be visible
if ((GetStyle() & WS_VISIBLE))
{
CFrameWnd* pTarget = (CFrameWnd*)GetOwner();
if (pTarget == NULL || !pTarget->IsFrameWnd())
pTarget = GetParentFrame();
if (pTarget != NULL)
OnUpdateCmdUI(pTarget, (BOOL)wParam);
}
return 0L;
}
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// CRebarWnd
CRebarWnd::CRebarWnd() : m_fRedraw(true)
{
}
CRebarWnd::~CRebarWnd()
{
}
BEGIN_MESSAGE_MAP(CRebarWnd, CWnd)
//{{AFX_MSG_MAP(CRebarWnd)
ON_WM_CREATE()
ON_WM_SYSCOLORCHANGE()
ON_WM_ERASEBKGND()
//}}AFX_MSG_MAP
ON_MESSAGE (WM_SETREDRAW, OnSetRedraw)
ON_NOTIFY_REFLECT(RBN_AUTOSIZE, OnRebarAutoSize)
ON_NOTIFY_REFLECT(RBN_HEIGHTCHANGE, OnRebarHeightChange)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CRebarWnd message handlers
/*+-------------------------------------------------------------------------*
* CRebarWnd::OnCreate
*
* WM_CREATE handler for CRebarWnd.
*--------------------------------------------------------------------------*/
int CRebarWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CWnd::OnCreate(lpCreateStruct) == -1)
return -1;
SetTextColor (GetSysColor (COLOR_BTNTEXT));
SetBkColor (GetSysColor (COLOR_BTNFACE));
return 0;
}
/*+-------------------------------------------------------------------------*
* CRebarWnd::OnSysColorChange
*
* WM_SYSCOLORCHANGE handler for CRebarWnd.
*--------------------------------------------------------------------------*/
void CRebarWnd::OnSysColorChange()
{
CWnd::OnSysColorChange();
SetTextColor (GetSysColor (COLOR_BTNTEXT));
SetBkColor (GetSysColor (COLOR_BTNFACE));
}
/*+-------------------------------------------------------------------------*
* CRebarWnd::OnEraseBkgnd
*
* WM_ERASEBKGND handler for CRebarWnd.
*--------------------------------------------------------------------------*/
BOOL CRebarWnd::OnEraseBkgnd(CDC* pDC)
{
/*
* If redraw is turned on, forward this on the the window. If it's
* not on, we want to prevent erasing the background to minimize
* flicker.
*/
if (m_fRedraw)
return CWnd::OnEraseBkgnd(pDC);
return (true);
}
/*+-------------------------------------------------------------------------*
* CRebarWnd::OnSetRedraw
*
* WM_SETREDRAW handler for CRebarWnd.
*--------------------------------------------------------------------------*/
LRESULT CRebarWnd::OnSetRedraw (WPARAM wParam, LPARAM)
{
m_fRedraw = (wParam != FALSE);
return (Default ());
}
/*+-------------------------------------------------------------------------*
* CRebarWnd::OnRebarAutoSize
*
* RBN_REBARAUTOSIZE handler for CRebarWnd.
*
* We want to keep the menu band on a row by itself, without any other
* toolbars. To do this, each time the rebar resizes we'll make sure that
* the first visible band after the menu band starts a new row.
*
* A more foolproof way to do this would be to have a separate rebar
* for the menu. If we do that, we'll need to insure that tabbing between
* toolbars (Ctrl+Tab) still works.
*--------------------------------------------------------------------------*/
void CRebarWnd::OnRebarAutoSize(NMHDR* pNotify, LRESULT* result)
{
/*
* insure that the band following the menu is on a new line
*/
CMainFrame* pFrame = AMCGetMainWnd();
if (pFrame == NULL)
return;
CToolBarCtrlEx* pMenuBar = pFrame->GetMenuBar();
if (pMenuBar == NULL)
return;
int iMenuBand = pMenuBar->GetBandIndex();
if (iMenuBand == -1)
return;
/*
* if the menu band is the last band on the rebar, we're done
*/
int cBands = GetBandCount();
if (iMenuBand == cBands-1)
return;
REBARBANDINFO rbbi;
rbbi.cbSize = sizeof (rbbi);
rbbi.fMask = RBBIM_STYLE;
/*
* if the first visible band following the menu band isn't
* on a new line, make it so
*/
for (int iBand = iMenuBand+1; iBand < cBands; iBand++)
{
if (GetBandInfo (iBand, &rbbi) && !(rbbi.fStyle & RBBS_HIDDEN))
{
if (!(rbbi.fStyle & RBBS_BREAK))
{
rbbi.fStyle |= RBBS_BREAK;
SetBandInfo (iBand, &rbbi);
}
break;
}
}
}
//+-------------------------------------------------------------------
//
// Member: OnRebarHeightChange
//
// Synopsis: RBN_HEIGHTCHANGE notification handler.
//
// When the rebar changes its height, we need to allow the
// docking host to resize to accomodate it.
//
// Arguments: Not used.
//
//--------------------------------------------------------------------
void CRebarWnd::OnRebarHeightChange(NMHDR* pNotify, LRESULT* result)
{
CRebarDockWindow* pRebarWnd = (CRebarDockWindow*) GetParent();
if (pRebarWnd && IsWindow(pRebarWnd->m_hWnd))
pRebarWnd->UpdateWindowSize();
}
CRect CRebarWnd::CalculateSize(CRect maxRect)
{
CRect rect;
GetClientRect(&rect);
// TRACE(_T("rc.bottom=%d\n"),rect.bottom);
rect.right=maxRect.Width();
return rect;
}
BOOL CRebarWnd::Create(LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID)
{
BOOL bResult = FALSE;
ASSERT_VALID(pParentWnd); // must have a parent
INITCOMMONCONTROLSEX icex;
icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
icex.dwICC = ICC_COOL_CLASSES;
if (!InitCommonControlsEx(&icex))
return bResult;
dwStyle |= WS_BORDER | /*WS_CLIPCHILDREN | WS_CLIPSIBLINGS |*/
CCS_NODIVIDER | CCS_NOPARENTALIGN |
RBS_VARHEIGHT | RBS_BANDBORDERS;
if (CWnd::CreateEx (WS_EX_TOOLWINDOW,
REBARCLASSNAME,
lpszWindowName,
dwStyle,
rect,
pParentWnd,
nID))
{
// Initialize and send the REBARINFO structure.
REBARINFO rbi;
rbi.cbSize = sizeof(REBARINFO);
rbi.fMask = 0;
rbi.himl = NULL;
if (SetBarInfo (&rbi))
bResult=TRUE;
}
return bResult;
}
BOOL CRebarWnd::OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo)
{
if (CWnd::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo))
return (TRUE);
return (FALSE);
}
LRESULT CRebarWnd::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
// this is required for Action, View drop-downs
if ((WM_COMMAND == message) && IsWindow ((HWND) lParam))
return ::SendMessage((HWND)lParam, message, wParam, lParam);
return CWnd::WindowProc(message, wParam, lParam);
}
/////////////////////////////////////////////////////////////////////////////
// CToolBar idle update through CToolCmdUI class
void CToolCmdUIEx::Enable(BOOL bOn)
{
m_bEnableChanged = TRUE;
CToolBarCtrlEx* pToolBar = (CToolBarCtrlEx*)m_pOther;
ASSERT(pToolBar != NULL);
ASSERT(m_nIndex < m_nIndexMax);
UINT nNewStyle = pToolBar->GetState(m_nID);
if (!bOn)
{
nNewStyle &= ~TBSTATE_ENABLED;
// WINBUG: If a button is currently pressed and then is disabled
// COMCTL32.DLL does not unpress the button, even after the mouse
// button goes up! We work around this bug by forcing TBBS_PRESSED
// off when a button is disabled.
nNewStyle &= ~TBBS_PRESSED;
}
else
{
nNewStyle |= TBSTATE_ENABLED;
}
//ASSERT(!(nNewStyle & TBBS_SEPARATOR));
pToolBar->SetState(m_nID, nNewStyle);
}
void CToolCmdUIEx::SetCheck(int nCheck)
{
ASSERT(nCheck >= 0 && nCheck <= 2); // 0=>off, 1=>on, 2=>indeterminate
CToolBarCtrlEx* pToolBar = (CToolBarCtrlEx*)m_pOther;
ASSERT(pToolBar != NULL);
ASSERT(m_nIndex < m_nIndexMax);
UINT nNewStyle = pToolBar->GetState(m_nID) &
~(TBBS_CHECKED | TBBS_INDETERMINATE | TBBS_CHECKBOX);
if (nCheck == 1)
nNewStyle |= TBBS_CHECKED | TBBS_CHECKBOX;
else if (nCheck == 2)
nNewStyle |= TBBS_INDETERMINATE;
pToolBar->SetState(m_nID, nNewStyle);
}
void CToolCmdUIEx::SetText(LPCTSTR)
{
}
void CToolCmdUIEx::SetHidden(BOOL bHidden)
{
m_bEnableChanged = TRUE;
CToolBarCtrlEx* pToolBar = (CToolBarCtrlEx*)m_pOther;
ASSERT(pToolBar != NULL);
ASSERT(m_nIndex < m_nIndexMax);
pToolBar->HideButton(m_nID, bHidden);
pToolBar->UpdateToolbarSize();
}
/////////////////////////////////////////////////////////////////////////////
// CMMCToolBarCtrlEx
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::GetTrackAccel
*
* Manages the accelerator table singleton for CMMCToolBarCtrlEx
*--------------------------------------------------------------------------*/
const CAccel& CMMCToolBarCtrlEx::GetTrackAccel ()
{
static ACCEL aaclTrack[] = {
{ FVIRTKEY, VK_RETURN, CMMCToolBarCtrlEx::ID_MTBX_PRESS_HOT_BUTTON },
{ FVIRTKEY, VK_RIGHT, CMMCToolBarCtrlEx::ID_MTBX_NEXT_BUTTON },
{ FVIRTKEY, VK_LEFT, CMMCToolBarCtrlEx::ID_MTBX_PREV_BUTTON },
{ FVIRTKEY, VK_ESCAPE, CMMCToolBarCtrlEx::ID_MTBX_END_TRACKING },
{ FVIRTKEY, VK_TAB, CMMCToolBarCtrlEx::ID_MTBX_NEXT_BUTTON },
{ FVIRTKEY | FSHIFT, VK_TAB, CMMCToolBarCtrlEx::ID_MTBX_PREV_BUTTON },
};
static const CAccel TrackAccel (aaclTrack, countof (aaclTrack));
return (TrackAccel);
}
CMMCToolBarCtrlEx::CMMCToolBarCtrlEx()
{
m_fTrackingToolBar = false;
m_fFakeFocusApplied = false;
}
CMMCToolBarCtrlEx::~CMMCToolBarCtrlEx()
{
}
BEGIN_MESSAGE_MAP(CMMCToolBarCtrlEx, CToolBarCtrlEx)
//{{AFX_MSG_MAP(CMMCToolBarCtrlEx)
ON_NOTIFY_REFLECT(TBN_HOTITEMCHANGE, OnHotItemChange)
ON_WM_LBUTTONDOWN()
ON_WM_MBUTTONDOWN()
ON_WM_RBUTTONDOWN()
ON_WM_DESTROY()
ON_COMMAND(ID_MTBX_NEXT_BUTTON, OnNextButton)
ON_COMMAND(ID_MTBX_PREV_BUTTON, OnPrevButton)
ON_COMMAND(ID_MTBX_END_TRACKING, EndTracking)
ON_COMMAND(ID_MTBX_PRESS_HOT_BUTTON, OnPressHotButton)
ON_WM_CREATE()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMMCToolBarCtrlEx message handlers
BOOL CMMCToolBarCtrlEx::PreTranslateMessage(MSG* pMsg)
{
if (CToolBarCtrlEx::PreTranslateMessage (pMsg))
return (TRUE);
if ((pMsg->message >= WM_KEYFIRST) && (pMsg->message <= WM_KEYLAST))
{
const CAccel& TrackAccel = GetTrackAccel();
ASSERT (TrackAccel != NULL);
// ...or try to handle it here.
if (m_fTrackingToolBar && TrackAccel.TranslateAccelerator (m_hWnd, pMsg))
return (TRUE);
}
return (FALSE);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnCreate
*
* WM_CREATE handler for CMMCToolBarCtrlEx.
*--------------------------------------------------------------------------*/
int CMMCToolBarCtrlEx::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::OnCreate"));
if (CToolBarCtrlEx::OnCreate(lpCreateStruct) == -1)
return -1;
/*
* Create our accessibility object so accessibility tools can follow
* keyboard access to the toolbar. If we can't, some accessibility
* tools (those that are super paranoid about confirming that objects
* for which they receive EVENT_OBJECT_FOCUS have a state of
* STATE_SYSTEM_FOCUSED) may not be able to follow along with toolbar
* tracking, but we can continue.
*/
sc = ScInitAccessibility();
if (sc)
sc.TraceAndClear();
return 0;
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnDestroy
*
* WM_DESTROY handler for CMMCToolBarCtrlEx.
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnDestroy()
{
CToolBarCtrlEx::OnDestroy();
/*
* if we provided an IAccPropServer to oleacc.dll, revoke it now
*/
if (m_spAccPropServices != NULL)
{
m_spAccPropServices->ClearHwndProps (m_hWnd, OBJID_CLIENT, CHILDID_SELF,
&PROPID_ACC_STATE, 1);
m_spAccPropServices.Release();
}
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnLButtonDown
*
* Allows the tracker to turn off when someone clicks elsewhere
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnLButtonDown(UINT nFlags, CPoint point)
{
if (GetCapture() == this)
EndTracking();
else
CToolBarCtrlEx::OnLButtonDown(nFlags, point );
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnMButtonDown
*
* Allows the tracker to turn off when someone clicks elsewhere
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnMButtonDown(UINT nFlags, CPoint point)
{
if (GetCapture() == this)
EndTracking();
else
CToolBarCtrlEx::OnMButtonDown(nFlags, point );
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnRButtonDown
*
* Allows the tracker to turn off when someone clicks elsewhere
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnRButtonDown(UINT nFlags, CPoint point)
{
if (GetCapture() == this)
EndTracking();
else
CToolBarCtrlEx::OnRButtonDown(nFlags, point );
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnNextButton
*
*
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnNextButton ()
{
// In a mirrored toolbar swap left and right keys.
if (m_fMirrored)
SetHotItem (GetPrevButtonIndex (GetHotItem ()));
else
SetHotItem (GetNextButtonIndex (GetHotItem ()));
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnPrevButton
*
*
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnPrevButton ()
{
// In a mirrored toolbar swap left and right keys.
if (m_fMirrored)
SetHotItem (GetNextButtonIndex (GetHotItem ()));
else
SetHotItem (GetPrevButtonIndex (GetHotItem ()));
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::BeginTracking
*
*
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::BeginTracking ()
{
BeginTracking2 (GetMainAuxWnd());
}
void CMMCToolBarCtrlEx::BeginTracking2 (CToolbarTrackerAuxWnd* pAuxWnd)
{
if (!m_fTrackingToolBar)
{
m_fTrackingToolBar = true;
SetHotItem (GetFirstButtonIndex ());
// Captures the mouse
// This prevents the mouse from activating something else without
// first giving us a chance to deactivate the tool bar.
SetCapture();
// make sure to set standard corsor since we've stolen the mouse
// see BUG 28458 MMC: Mouse icon does not refresh when menu is activated by pressing ALT key
::SetCursor( ::LoadCursor( NULL, IDC_ARROW ) );
if (pAuxWnd != NULL)
pAuxWnd->TrackToolbar (this);
}
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::EndTracking
*
*
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::EndTracking ()
{
EndTracking2 (GetMainAuxWnd());
}
void CMMCToolBarCtrlEx::EndTracking2 (CToolbarTrackerAuxWnd* pAuxWnd)
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::EndTracking2"));
/*
* tell accessibility tools that the "focus" went back to the real
* focus window
*/
sc = ScRestoreAccFocus();
if (sc)
sc.TraceAndClear();
if (m_fTrackingToolBar)
{
SetHotItem (-1);
m_fTrackingToolBar = false;
// Releases the mouse This gives us a chance to deactivate the tool bar
// before anything else is activated.
ReleaseCapture();
if (pAuxWnd != NULL)
pAuxWnd->TrackToolbar (NULL);
}
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnPressHotButton
*
*
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnPressHotButton ()
{
int nHotIndex = GetHotItem();
ASSERT (m_fTrackingToolBar);
ASSERT (nHotIndex != -1);
TBBUTTON tb;
GetButton (nHotIndex, &tb);
// press the button and pause to show the press
PressButton (tb.idCommand, true);
UpdateWindow ();
Sleep (50);
// EndTracking for surrogate windows will detach the window,
// so remember everything that we'll need later
HWND hwnd = m_hWnd;
CWnd* pwndOwner = SetOwner (NULL);
SetOwner (pwndOwner);
// release the button
PressButton (tb.idCommand, false);
EndTracking ();
/*-----------------------------------------------------------------*/
/* WARNING: don't use any members of this class beyond this point */
/*-----------------------------------------------------------------*/
// make sure drawing is completed
::UpdateWindow (hwnd);
// send a command to our owner
pwndOwner->SendMessage (WM_COMMAND, MAKEWPARAM (tb.idCommand, BN_CLICKED),
(LPARAM) hwnd);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::GetFirstButtonIndex
*
*
*--------------------------------------------------------------------------*/
int CMMCToolBarCtrlEx::GetFirstButtonIndex ()
{
return (GetNextButtonIndex (-1));
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::GetNextButtonIndex
*
*
*--------------------------------------------------------------------------*/
int CMMCToolBarCtrlEx::GetNextButtonIndex (
int nStartIndex,
int nCount /* = 1 */)
{
return (GetNextButtonIndexWorker (nStartIndex, nCount, true));
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::GetPrevButtonIndex
*
*
*--------------------------------------------------------------------------*/
int CMMCToolBarCtrlEx::GetPrevButtonIndex (
int nStartIndex,
int nCount /* = 1 */)
{
return (GetNextButtonIndexWorker (nStartIndex, nCount, false));
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::GetNextButtonIndexWorker
*
*
*--------------------------------------------------------------------------*/
int CMMCToolBarCtrlEx::GetNextButtonIndexWorker (
int nStartIndex,
int nCount,
bool fAdvance)
{
ASSERT (nCount >= 0);
if (!fAdvance)
nCount = -nCount;
int cButtons = GetButtonCount ();
int nNextIndex = nStartIndex;
bool fIgnorable;
if (0 == cButtons)
return nStartIndex;
/*
* loop until we find a next index that we don't want to
* ignore, or until we've checked each of the buttons
*/
do
{
nNextIndex = (nNextIndex + cButtons + nCount) % cButtons;
fIgnorable = IsIgnorableButton (nNextIndex);
if (fIgnorable)
nCount = fAdvance ? 1 : -1;
// prevent an infinite loop finding the first button
if ((nStartIndex == -1) && (nNextIndex == cButtons-1))
nNextIndex = nStartIndex;
} while (fIgnorable && (nNextIndex != nStartIndex));
return (nNextIndex);
}
/*+-------------------------------------------------------------------------*
* IsIgnorableButton
*
* Determines if a toolbar button is "ignorable" from a UI perspective,
* i.e. whether it is hidden, disabled, or a separator.
*--------------------------------------------------------------------------*/
bool CMMCToolBarCtrlEx::IsIgnorableButton (int nButtonIndex)
{
TBBUTTON tb;
GetButton (nButtonIndex, &tb);
return (::IsIgnorableButton (tb));
}
bool IsIgnorableButton (const TBBUTTON& tb)
{
if (tb.fsStyle & TBSTYLE_SEP)
return (true);
if (tb.fsState & TBSTATE_HIDDEN)
return (true);
if (!(tb.fsState & TBSTATE_ENABLED))
return (true);
return (false);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::OnHotItemChange
*
* Reflected TBN_HOTITEMCHANGE handler for void CMMCToolBarCtrlEx.
*--------------------------------------------------------------------------*/
void CMMCToolBarCtrlEx::OnHotItemChange (
NMHDR * pHdr,
LRESULT * pResult)
{
ASSERT (CWnd::FromHandle (pHdr->hwndFrom) == this);
CToolbarTrackerAuxWnd* pAuxWnd = GetMainAuxWnd();
LPNMTBHOTITEM ptbhi = (LPNMTBHOTITEM) pHdr;
Trace (tagToolbarAccessibility, _T("TBN_HOTITEMCHANGE: idOld=%d idNew=%d"), ptbhi->idOld, ptbhi->idNew);
/*
* if we're not in tracking mode, hot item change is OK
*/
if (pAuxWnd == NULL)
*pResult = 0;
/*
* if we're tracking, but this isn't the tracked toolbar,
* the hot item change isn't OK
*/
else if (!IsTrackingToolBar())
*pResult = 1;
/*
* prevent mouse movement over empty portions of
* the bar from changing the hot item
*/
else
{
const DWORD dwIgnoreFlags = (HICF_MOUSE | HICF_LEAVING);
*pResult = ((ptbhi->dwFlags & dwIgnoreFlags) == dwIgnoreFlags);
}
/*
* If we're allowing the hot item change while we're keyboard tracking
* the toolbar (to exclude changes due to mouse tracking), send a focus
* event so accessibility tools like Magnifier and Narrator can follow
* the change. This fake-focus effect is undone in ScRestoreAccFocus.
*/
int idChild;
if (IsTrackingToolBar() &&
(*pResult == 0) &&
(ptbhi->idNew != 0) &&
((idChild = CommandToIndex(ptbhi->idNew)) != -1))
{
Trace (tagToolbarAccessibility, _T("Sending focus event for button %d"), idChild+1);
NotifyWinEvent (EVENT_OBJECT_FOCUS, m_hWnd, OBJID_CLIENT, idChild+1 /*1-based*/);
m_fFakeFocusApplied = true;
}
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::ScInitAccessibility
*
* Creates the IAccPropServer object that will fool accessibility tools into
* thinking that this toolbar really has the focus when we're in tracking
* mode, even though it really doesn't
*--------------------------------------------------------------------------*/
SC CMMCToolBarCtrlEx::ScInitAccessibility ()
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::ScInitAccessibility"));
/*
* if we've already initialized, just return
*/
if (m_spAccPropServices != NULL)
return (sc);
/*
* create a CLSID_AccPropServices provided by the MSAA runtime (oleacc.dll)
* This is a new feature in oleacc.dll, so trace failure as an informational
* message rather than an error.
*/
SC scNoTrace = m_spAccPropServices.CoCreateInstance (CLSID_AccPropServices);
if (scNoTrace)
{
#ifdef DBG
TCHAR szErrorText[256];
sc.GetErrorMessage (countof(szErrorText), szErrorText);
StripTrailingWhitespace (szErrorText);
Trace (tagToolbarAccessibility, _T("Failed to create CLSID_AccPropServices"));
Trace (tagToolbarAccessibility, _T("SC = 0x%08X = %d = \"%s\""),
sc.GetCode(), LOWORD(sc.GetCode()), szErrorText);
#endif // DBG
return (sc);
}
sc = ScCheckPointers (m_spAccPropServices, E_UNEXPECTED);
if (sc)
return (sc);
/*
* create the property server
*/
sc = CTiedComObjectCreator<CMMCToolBarAccServer>::ScCreateAndConnect(*this, m_spAccPropServer);
if (sc)
return (sc);
sc = ScCheckPointers (m_spAccPropServer, E_UNEXPECTED);
if (sc)
return (sc);
/*
* collect the properties we'll be providing, insuring there
* are no duplicates
*/
sc = ScInsertAccPropIDs (m_vPropIDs);
if (sc)
return (sc);
std::sort (m_vPropIDs.begin(), m_vPropIDs.end()); // std::unique needs a sorted range
m_vPropIDs.erase (std::unique (m_vPropIDs.begin(), m_vPropIDs.end()),
m_vPropIDs.end());
/*
* insure m_vPropIDs contains no duplicates (IAccPropServices::SetHwndPropServer
* depends on it)
*/
#ifdef DBG
for (int i = 0; i < m_vPropIDs.size()-1; i++)
{
ASSERT (m_vPropIDs[i] < m_vPropIDs[i+1]);
}
#endif
/*
* Enable our property server for this window. We should be able to
* hook all properties in one fell swoop, but there's a bug in oleacc.dll
* that prevents this. Hooking the properties one at a time works fine.
*/
#if 0
sc = m_spAccPropServices->SetHwndPropServer (m_hWnd,
OBJID_CLIENT,
CHILDID_SELF,
m_vPropIDs.begin(),
m_vPropIDs.size(),
m_spAccPropServer,
ANNO_CONTAINER);
if (sc)
{
Trace (tagToolbarAccessibility, _T("SetHwndPropServer failed"));
return (sc);
}
#else
for (int i = 0; i < m_vPropIDs.size(); i++)
{
sc = m_spAccPropServices->SetHwndPropServer (m_hWnd,
OBJID_CLIENT,
CHILDID_SELF,
&m_vPropIDs[i],
1,
m_spAccPropServer,
ANNO_CONTAINER);
if (sc)
{
#ifdef DBG
USES_CONVERSION;
WCHAR wzPropID[40];
StringFromGUID2 (m_vPropIDs[i], wzPropID, countof(wzPropID));
Trace (tagToolbarAccessibility, _T("SetHwndPropServer failed for %s"), W2T(wzPropID));
#endif
sc.TraceAndClear();
}
}
#endif
return (sc);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::ScInsertAccPropIDs
*
* Inserts the IDs of the accessibility properties supported by
* CMMCToolBarCtrlEx (see ScGetPropValue).
*--------------------------------------------------------------------------*/
SC CMMCToolBarCtrlEx::ScInsertAccPropIDs (PropIDCollection& v)
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::ScInsertAccPropIDs"));
v.push_back (PROPID_ACC_STATE);
return (sc);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::ScGetPropValue
*
* Implements IAccPropServer::GetPropValue for CMMCToolBarCtrlEx. If this
* funtion is asked for PROPID_ACC_STATE for the currently hot button while
* we're in tracking mode, it'll return a state that mimics the state
* returned by a plain toolbar when it really has the focus.
*--------------------------------------------------------------------------*/
SC CMMCToolBarCtrlEx::ScGetPropValue (
const BYTE* pIDString,
DWORD dwIDStringLen,
MSAAPROPID idProp,
VARIANT * pvarValue,
BOOL * pfGotProp)
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::ScGetPropValue"));
sc = ScCheckPointers (pIDString, pvarValue, pfGotProp);
if (sc)
return (sc);
/*
* assume no prop returned
*/
*pfGotProp = false;
V_VT(pvarValue) = VT_EMPTY;
sc = ScCheckPointers (m_spAccPropServer, E_UNEXPECTED);
if (sc)
return (sc);
/*
* extract the child ID from the identity string
*/
HWND hwnd;
DWORD idObject, idChild;
sc = m_spAccPropServices->DecomposeHwndIdentityString (pIDString, dwIDStringLen,
&hwnd, &idObject, &idChild);
if (sc)
return (sc);
#ifdef DBG
#define DEFINE_PDI(p) PropDebugInfo (p, _T(#p))
static const struct PropDebugInfo {
// constructor used to get around nested structure initialization weirdness
PropDebugInfo(const MSAAPROPID& id, LPCTSTR psz) : idProp(id), pszProp(psz) {}
const MSAAPROPID& idProp;
LPCTSTR pszProp;
} rgpdi[] = {
DEFINE_PDI (PROPID_ACC_NAME ),
DEFINE_PDI (PROPID_ACC_VALUE ),
DEFINE_PDI (PROPID_ACC_DESCRIPTION ),
DEFINE_PDI (PROPID_ACC_ROLE ),
DEFINE_PDI (PROPID_ACC_STATE ),
DEFINE_PDI (PROPID_ACC_HELP ),
DEFINE_PDI (PROPID_ACC_KEYBOARDSHORTCUT),
DEFINE_PDI (PROPID_ACC_DEFAULTACTION ),
DEFINE_PDI (PROPID_ACC_HELPTOPIC ),
DEFINE_PDI (PROPID_ACC_FOCUS ),
DEFINE_PDI (PROPID_ACC_SELECTION ),
DEFINE_PDI (PROPID_ACC_PARENT ),
DEFINE_PDI (PROPID_ACC_NAV_UP ),
DEFINE_PDI (PROPID_ACC_NAV_DOWN ),
DEFINE_PDI (PROPID_ACC_NAV_LEFT ),
DEFINE_PDI (PROPID_ACC_NAV_RIGHT ),
DEFINE_PDI (PROPID_ACC_NAV_PREV ),
DEFINE_PDI (PROPID_ACC_NAV_NEXT ),
DEFINE_PDI (PROPID_ACC_NAV_FIRSTCHILD ),
DEFINE_PDI (PROPID_ACC_NAV_LASTCHILD ),
DEFINE_PDI (PROPID_ACC_VALUEMAP ),
DEFINE_PDI (PROPID_ACC_ROLEMAP ),
DEFINE_PDI (PROPID_ACC_STATEMAP ),
};
/*
* dump the requested property
*/
for (int i = 0; i < countof(rgpdi); i++)
{
if (rgpdi[i].idProp == idProp)
{
Trace (tagToolbarAccessibility, _T("GetPropValue: %s requested for child %d"), rgpdi[i].pszProp, idChild);
break;
}
}
if (i == countof(rgpdi))
{
USES_CONVERSION;
WCHAR wzPropID[40];
StringFromGUID2 (idProp, wzPropID, countof(wzPropID));
Trace (tagToolbarAccessibility, _T("GetPropValue: Unknown property ID %s"), W2T(wzPropID));
}
/*
* insure m_vPropIDs is sorted (std::lower_bound depends on it)
*/
for (int i = 0; i < m_vPropIDs.size()-1; i++)
{
ASSERT (m_vPropIDs[i] < m_vPropIDs[i+1]);
}
#endif
/*
* if we're asked for a property we didn't claim to support, don't return
* anything
*/
if (m_vPropIDs.end() == std::lower_bound (m_vPropIDs.begin(), m_vPropIDs.end(), idProp))
{
Trace (tagToolbarAccessibility, _T("GetPropValue: Unexpected property request"));
return (sc);
}
/*
* get the property
*/
sc = ScGetPropValue (hwnd, idObject, idChild, idProp, *pvarValue, *pfGotProp);
if (sc)
return (sc);
return (sc);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::ScGetPropValue
*
* Returns accessibility properties supported by CMMCToolBarCtrlEx.
*
* If a property is returned, fGotProp is set to true. If it is not
* returned, the value of fGotProp is unchanged, since the property might
* have been provided by a base/derived class.
*--------------------------------------------------------------------------*/
SC CMMCToolBarCtrlEx::ScGetPropValue (
HWND hwnd, // I:accessible window
DWORD idObject, // I:accessible object
DWORD idChild, // I:accessible child object
const MSAAPROPID& idProp, // I:property requested
VARIANT& varValue, // O:returned property value
BOOL& fGotProp) // O:was a property returned?
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::ScGetPropValue"));
/*
* handle requests for state
*/
if (idProp == PROPID_ACC_STATE)
{
/*
* only override the property for child elements, not the control itself;
* don't return a property
*/
if (idChild == CHILDID_SELF)
{
Trace (tagToolbarAccessibility, _T("GetPropValue: no state for CHILDID_SELF"));
return (sc);
}
/*
* if we're not in tracking mode, don't return a property
*/
if (!IsTrackingToolBar())
{
Trace (tagToolbarAccessibility, _T("GetPropValue: not in tracking mode, no state returned"));
return (sc);
}
/*
* if the current hot item isn't the child we're asked for, don't return a property
*/
int nHotItem = GetHotItem();
if (nHotItem != (idChild-1) /*0-based*/)
{
Trace (tagToolbarAccessibility, _T("GetPropValue: hot item is %d, no state returned"), nHotItem);
return (sc);
}
/*
* if we get here, we're asked for state for the current hot item;
* return STATE_SYSTEM_FOCUSED | STATE_SYSTEM_HOTTRACKED to match
* what a truly focused toolbar would return
*/
V_VT(&varValue) = VT_I4;
V_I4(&varValue) = STATE_SYSTEM_FOCUSED | STATE_SYSTEM_HOTTRACKED | STATE_SYSTEM_FOCUSABLE;
fGotProp = true;
Trace (tagToolbarAccessibility, _T("GetPropValue: Returning 0x%08x"), V_I4(&varValue));
}
return (sc);
}
/*+-------------------------------------------------------------------------*
* CMMCToolBarCtrlEx::ScRestoreAccFocus
*
* Sends a fake EVENT_OBJECT_FOCUS event to send accessibility tools back
* to the true focus window, undoing the effect of our fake focus events
* in OnHotItemChange.
*--------------------------------------------------------------------------*/
SC CMMCToolBarCtrlEx::ScRestoreAccFocus()
{
DECLARE_SC (sc, _T("CMMCToolBarCtrlEx::ScRestoreAccFocus"));
/*
* if we haven't applied fake-focus, we don't need to restore anything
*/
if (!m_fFakeFocusApplied)
return (sc);
/*
* who has the focus now?
*/
HWND hwndFocus = ::GetFocus();
if (hwndFocus == NULL)
return (sc);
/*
* default to sending the focus for CHILDID_SELF
*/
int idChild = CHILDID_SELF;
/*
* get the accessible object for the focus window (don't abort on
* failure -- don't convert this HRESULT to SC)
*/
CComPtr<IAccessible> spAccessible;
HRESULT hr = AccessibleObjectFromWindow (hwndFocus, OBJID_CLIENT,
IID_IAccessible,
(void**) &spAccessible);
if (hr == S_OK) // not "SUCCEEDED(hr)", per Accessibility spec
{
/*
* ask the accessible object which
*/
CComVariant varFocusID;
hr = spAccessible->get_accFocus (&varFocusID);
if (hr == S_OK) // not "SUCCEEDED(hr)", per Accessibility spec
{
switch (V_VT(&varFocusID))
{
case VT_I4:
idChild = V_I4(&varFocusID);
break;
case VT_EMPTY:
/*
* Windows thinks the window has the focus, but its
* IAccessible thinks it doesn't. Trust Windows.
*/
Trace (tagToolbarAccessibility, _T("Windows and IAccessible::get_accFocus don't agree on who has the focus"));
break;
case VT_DISPATCH:
Trace (tagToolbarAccessibility, _T("IAccessible::get_accFocus returned VT_DISPATCH, ignoring"));
break;
default:
Trace (tagToolbarAccessibility, _T("IAccessible::get_accFocus returned unexpected VARIANT type (%d)"), V_VT(&varFocusID));
break;
}
}
else
{
Trace (tagToolbarAccessibility, _T("IAccessible::get_accFocus failed, hr=0x%08x"), hwndFocus, hr);
}
}
else
{
Trace (tagToolbarAccessibility, _T("Can't get IAccessible from hwnd=0x%p (hr=0x%08x)"), hwndFocus, hr);
}
Trace (tagToolbarAccessibility, _T("Sending focus event back to hwnd=0x%p, idChild=%d"), hwndFocus, idChild);
NotifyWinEvent (EVENT_OBJECT_FOCUS, hwndFocus, OBJID_CLIENT, idChild);
m_fFakeFocusApplied = false;
return (sc);
}
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