src/common/popupcmn.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/common/popupcmn.cpp
// Purpose:     implementation of wxPopupTransientWindow
// Author:      Vadim Zeitlin
// Modified by:
// Created:     06.01.01
// RCS-ID:      $Id$
// Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// License:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_POPUPWIN

#include "wx/popupwin.h"

#ifndef WX_PRECOMP
    #include "wx/combobox.h"        // wxComboCtrl
    #include "wx/app.h"             // wxPostEvent
    #include "wx/log.h"
#endif //WX_PRECOMP

#ifdef __WXUNIVERSAL__
    #include "wx/univ/renderer.h"
#endif // __WXUNIVERSAL__

#ifdef __WXGTK__
    #include <gtk/gtk.h>
#endif
#ifdef __WXX11__
#include "wx/x11/private.h"
#endif

IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
IMPLEMENT_DYNAMIC_CLASS(wxPopupTransientWindow, wxPopupWindow)

#if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
    IMPLEMENT_DYNAMIC_CLASS(wxPopupComboWindow, wxPopupTransientWindow)
#endif

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

// event handlers which we use to intercept events which cause the popup to
// disappear
class wxPopupWindowHandler : public wxEvtHandler
{
public:
    wxPopupWindowHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}

protected:
    // event handlers
    void OnLeftDown(wxMouseEvent& event);

private:
    wxPopupTransientWindow *m_popup;

    DECLARE_EVENT_TABLE()
    DECLARE_NO_COPY_CLASS(wxPopupWindowHandler)
};

class wxPopupFocusHandler : public wxEvtHandler
{
public:
    wxPopupFocusHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}

protected:
    void OnKillFocus(wxFocusEvent& event);
    void OnKeyDown(wxKeyEvent& event);

private:
    wxPopupTransientWindow *m_popup;

    DECLARE_EVENT_TABLE()
    DECLARE_NO_COPY_CLASS(wxPopupFocusHandler)
};

// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(wxPopupWindowHandler, wxEvtHandler)
    EVT_LEFT_DOWN(wxPopupWindowHandler::OnLeftDown)
END_EVENT_TABLE()

BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
    EVT_KILL_FOCUS(wxPopupFocusHandler::OnKillFocus)
    EVT_KEY_DOWN(wxPopupFocusHandler::OnKeyDown)
END_EVENT_TABLE()

BEGIN_EVENT_TABLE(wxPopupTransientWindow, wxPopupWindow)
#ifdef __WXMSW__
    EVT_IDLE(wxPopupTransientWindow::OnIdle)
#endif
END_EVENT_TABLE()

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxPopupWindowBase
// ----------------------------------------------------------------------------

wxPopupWindowBase::~wxPopupWindowBase()
{
    // this destructor is required for Darwin
}

bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
{
    return true;
}

void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
                                 const wxSize& size)
{
    wxSize sizeScreen = wxGetDisplaySize(),
           sizeSelf = GetSize();

    // is there enough space to put the popup below the window (where we put it
    // by default)?
    wxCoord y = ptOrigin.y + size.y;
    if ( y + sizeSelf.y > sizeScreen.y )
    {
        // check if there is enough space above
        if ( ptOrigin.y > sizeSelf.y )
        {
            // do position the control above the window
            y -= size.y + sizeSelf.y;
        }
        //else: not enough space below nor above, leave below
    }

    // now check left/right too
    wxCoord x = ptOrigin.x + size.x;
    if ( x + sizeSelf.x > sizeScreen.x )
    {
        // check if there is enough space to the left
        if ( ptOrigin.x > sizeSelf.x )
        {
            // do position the control to the left
            x -= size.x + sizeSelf.x;
        }
        //else: not enough space there neither, leave in default position
    }

    Move(x, y, wxSIZE_NO_ADJUSTMENTS);
}

// ----------------------------------------------------------------------------
// wxPopupTransientWindow
// ----------------------------------------------------------------------------

void wxPopupTransientWindow::Init()
{
    m_child =
    m_focus = (wxWindow *)NULL;

    m_handlerFocus = NULL;
    m_handlerPopup = NULL;
}

wxPopupTransientWindow::wxPopupTransientWindow(wxWindow *parent, int style)
{
    Init();

    (void)Create(parent, style);
}

wxPopupTransientWindow::~wxPopupTransientWindow()
{
    if (m_handlerPopup && m_handlerPopup->GetNextHandler())
        PopHandlers();

    wxASSERT(!m_handlerFocus || !m_handlerFocus->GetNextHandler());
    wxASSERT(!m_handlerPopup || !m_handlerPopup->GetNextHandler());

    delete m_handlerFocus;
    delete m_handlerPopup;
}

void wxPopupTransientWindow::PopHandlers()
{
    if ( m_child )
    {
        if ( !m_child->RemoveEventHandler(m_handlerPopup) )
        {
            // something is very wrong and someone else probably deleted our
            // handler - so don't risk deleting it second time
            m_handlerPopup = NULL;
        }
        if (m_child->HasCapture())
        {
            m_child->ReleaseMouse();
        }
        m_child = NULL;
    }

    if ( m_focus )
    {
        if ( !m_focus->RemoveEventHandler(m_handlerFocus) )
        {
            // see above
            m_handlerFocus = NULL;
        }
    }
    m_focus = NULL;
}

void wxPopupTransientWindow::Popup(wxWindow *winFocus)
{
    const wxWindowList& children = GetChildren();
    if ( children.GetCount() )
    {
        m_child = children.GetFirst()->GetData();
    }
    else
    {
        m_child = this;
    }

    Show();

    // There is is a problem if these are still in use
    wxASSERT(!m_handlerFocus || !m_handlerFocus->GetNextHandler());
    wxASSERT(!m_handlerPopup || !m_handlerPopup->GetNextHandler());

    if (!m_handlerPopup)
        m_handlerPopup = new wxPopupWindowHandler(this);

    m_child->PushEventHandler(m_handlerPopup);

    m_focus = winFocus ? winFocus : this;
    m_focus->SetFocus();

#ifdef __WXMSW__
    // MSW doesn't allow to set focus to the popup window, but we need to
    // subclass the window which has the focus, and not winFocus passed in or
    // otherwise everything else breaks down
    m_focus = FindFocus();
#elif defined(__WXGTK__)
    // GTK+ catches the activate events from the popup
    // window, not the focus events from the child window
    m_focus = this;
#endif

    if ( m_focus )
    {
        if (!m_handlerFocus)
            m_handlerFocus = new wxPopupFocusHandler(this);

        m_focus->PushEventHandler(m_handlerFocus);
    }
}

bool wxPopupTransientWindow::Show( bool show )
{
#ifdef __WXGTK__
    if (!show)
    {
        gdk_pointer_ungrab( (guint32)GDK_CURRENT_TIME );

        gtk_grab_remove( m_widget );
    }
#endif

#ifdef __WXX11__
    if (!show)
    {
        XUngrabPointer( wxGlobalDisplay(), CurrentTime );
    }
#endif

#ifdef __WXMSW__
    if (!show && m_child && m_child->HasCapture())
    {
        m_child->ReleaseMouse();
    }
#endif

    bool ret = wxPopupWindow::Show( show );

#ifdef __WXGTK__
    if (show)
    {
        gtk_grab_add( m_widget );

        gdk_pointer_grab( m_widget->window, TRUE,
                          (GdkEventMask)
                            (GDK_BUTTON_PRESS_MASK |
                             GDK_BUTTON_RELEASE_MASK |
                             GDK_POINTER_MOTION_HINT_MASK |
                             GDK_POINTER_MOTION_MASK),
                          (GdkWindow *) NULL,
                          (GdkCursor *) NULL,
                          (guint32)GDK_CURRENT_TIME );
    }
#endif

#ifdef __WXX11__
    if (show)
    {
        Window xwindow = (Window) m_clientWindow;

        /* int res =*/ XGrabPointer(wxGlobalDisplay(), xwindow,
            True,
            ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask,
            GrabModeAsync,
            GrabModeAsync,
            None,
            None,
            CurrentTime );
    }
#endif

#ifdef __WXMSW__
    if (show && m_child)
    {
        // Assume that the mouse is outside the popup to begin with
        m_child->CaptureMouse();
    }
#endif

    return ret;
}

void wxPopupTransientWindow::Dismiss()
{
    Hide();
    PopHandlers();
}

void wxPopupTransientWindow::DismissAndNotify()
{
    Dismiss();
    OnDismiss();
}

void wxPopupTransientWindow::OnDismiss()
{
    // nothing to do here - but it may be interesting for derived class
}

bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
{
    // no special processing here
    return false;
}

#ifdef __WXMSW__
void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
{
    event.Skip();

    if (IsShown() && m_child)
    {
        wxPoint pos = ScreenToClient(wxGetMousePosition());
        wxRect rect(GetSize());

        if ( rect.Contains(pos) )
        {
            if ( m_child->HasCapture() )
            {
                m_child->ReleaseMouse();
            }
        }
        else
        {
            if ( !m_child->HasCapture() )
            {
                m_child->CaptureMouse();
            }
        }
    }
}
#endif // __WXMSW__


#if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)

// ----------------------------------------------------------------------------
// wxPopupComboWindow
// ----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(wxPopupComboWindow, wxPopupTransientWindow)
    EVT_KEY_DOWN(wxPopupComboWindow::OnKeyDown)
END_EVENT_TABLE()

wxPopupComboWindow::wxPopupComboWindow(wxComboCtrl *parent)
                  : wxPopupTransientWindow(parent)
{
    m_combo = parent;
}

bool wxPopupComboWindow::Create(wxComboCtrl *parent)
{
    m_combo = parent;

    return wxPopupWindow::Create(parent);
}

void wxPopupComboWindow::PositionNearCombo()
{
    // the origin point must be in screen coords
    wxPoint ptOrigin = m_combo->ClientToScreen(wxPoint(0,0));

#if 0 //def __WXUNIVERSAL__
    // account for the fact that (0, 0) is not the top left corner of the
    // window: there is also the border
    wxRect rectBorders = m_combo->GetRenderer()->
                            GetBorderDimensions(m_combo->GetBorder());
    ptOrigin.x -= rectBorders.x;
    ptOrigin.y -= rectBorders.y;
#endif // __WXUNIVERSAL__

    // position below or above the combobox: the width is 0 to put it exactly
    // below us, not to the left or to the right
    Position(ptOrigin, wxSize(0, m_combo->GetSize().y));
}

void wxPopupComboWindow::OnDismiss()
{
    m_combo->OnPopupDismiss();
}

void wxPopupComboWindow::OnKeyDown(wxKeyEvent& event)
{
    m_combo->ProcessEvent(event);
}

#endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)

// ----------------------------------------------------------------------------
// wxPopupWindowHandler
// ----------------------------------------------------------------------------

void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
{
    // let the window have it first (we're the first event handler in the chain
    // of handlers for this window)
    if ( m_popup->ProcessLeftDown(event) )
    {
        return;
    }

    wxPoint pos = event.GetPosition();

    // in non-Univ ports the system manages scrollbars for us
#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
    // scrollbar on which the click occurred
    wxWindow *sbar = NULL;
#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR

    wxWindow *win = (wxWindow *)event.GetEventObject();

    switch ( win->HitTest(pos.x, pos.y) )
    {
        case wxHT_WINDOW_OUTSIDE:
            {
                // do the coords translation now as after DismissAndNotify()
                // m_popup may be destroyed
                wxMouseEvent event2(event);

                m_popup->ClientToScreen(&event2.m_x, &event2.m_y);

                // clicking outside a popup dismisses it
                m_popup->DismissAndNotify();

                // dismissing a tooltip shouldn't waste a click, i.e. you
                // should be able to dismiss it and press the button with the
                // same click, so repost this event to the window beneath us
                wxWindow *winUnder = wxFindWindowAtPoint(event2.GetPosition());
                if ( winUnder )
                {
                    // translate the event coords to the ones of the window
                    // which is going to get the event
                    winUnder->ScreenToClient(&event2.m_x, &event2.m_y);

                    event2.SetEventObject(winUnder);
                    wxPostEvent(winUnder, event2);
                }
            }
            break;

#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
        case wxHT_WINDOW_HORZ_SCROLLBAR:
            sbar = win->GetScrollbar(wxHORIZONTAL);
            break;

        case wxHT_WINDOW_VERT_SCROLLBAR:
            sbar = win->GetScrollbar(wxVERTICAL);
            break;
#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR

        default:
            // forgot to update the switch after adding a new hit test code?
            wxFAIL_MSG( _T("unexpected HitTest() return value") );
            // fall through

        case wxHT_WINDOW_CORNER:
            // don't actually know if this one is good for anything, but let it
            // pass just in case

        case wxHT_WINDOW_INSIDE:
            // let the normal processing take place
            event.Skip();
            break;
    }

#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
    if ( sbar )
    {
        // translate the event coordinates to the scrollbar ones
        pos = sbar->ScreenToClient(win->ClientToScreen(pos));

        // and give the event to it
        wxMouseEvent event2 = event;
        event2.m_x = pos.x;
        event2.m_y = pos.y;

        (void)sbar->GetEventHandler()->ProcessEvent(event2);
    }
#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
}

// ----------------------------------------------------------------------------
// wxPopupFocusHandler
// ----------------------------------------------------------------------------

void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
{
    // when we lose focus we always disappear - unless it goes to the popup (in
    // which case we don't really lose it)
    wxWindow *win = event.GetWindow();
    while ( win )
    {
        if ( win == m_popup )
            return;
        win = win->GetParent();
    }

    m_popup->DismissAndNotify();
}

void wxPopupFocusHandler::OnKeyDown(wxKeyEvent& event)
{
    // let the window have it first, it might process the keys
    if ( !m_popup->ProcessEvent(event) )
    {
        // by default, dismiss the popup
        m_popup->DismissAndNotify();
    }
}

#endif // wxUSE_POPUPWIN
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/common/popupcmn.cpp
	3	// Purpose: implementation of wxPopupTransientWindow
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 06.01.01
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
	9	// License: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	#if wxUSE_POPUPWIN
	28
	29	#include "wx/popupwin.h"
	30
	31	#ifndef WX_PRECOMP
	32	#include "wx/combobox.h" // wxComboCtrl
	33	#include "wx/app.h" // wxPostEvent
	34	#include "wx/log.h"
	35	#endif //WX_PRECOMP
	36
	37	#ifdef __WXUNIVERSAL__
	38	#include "wx/univ/renderer.h"
	39	#endif // __WXUNIVERSAL__
	40
	41	#ifdef __WXGTK__
	42	#include <gtk/gtk.h>
	43	#endif
	44	#ifdef __WXX11__
	45	#include "wx/x11/private.h"
	46	#endif
	47
	48	IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
	49	IMPLEMENT_DYNAMIC_CLASS(wxPopupTransientWindow, wxPopupWindow)
	50
	51	#if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
	52	IMPLEMENT_DYNAMIC_CLASS(wxPopupComboWindow, wxPopupTransientWindow)
	53	#endif
	54
	55	// ----------------------------------------------------------------------------
	56	// private classes
	57	// ----------------------------------------------------------------------------
	58
	59	// event handlers which we use to intercept events which cause the popup to
	60	// disappear
	61	class wxPopupWindowHandler : public wxEvtHandler
	62	{
	63	public:
	64	wxPopupWindowHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
	65
	66	protected:
	67	// event handlers
	68	void OnLeftDown(wxMouseEvent& event);
	69
	70	private:
	71	wxPopupTransientWindow *m_popup;
	72
	73	DECLARE_EVENT_TABLE()
	74	DECLARE_NO_COPY_CLASS(wxPopupWindowHandler)
	75	};
	76
	77	class wxPopupFocusHandler : public wxEvtHandler
	78	{
	79	public:
	80	wxPopupFocusHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
	81
	82	protected:
	83	void OnKillFocus(wxFocusEvent& event);
	84	void OnKeyDown(wxKeyEvent& event);
	85
	86	private:
	87	wxPopupTransientWindow *m_popup;
	88
	89	DECLARE_EVENT_TABLE()
	90	DECLARE_NO_COPY_CLASS(wxPopupFocusHandler)
	91	};
	92
	93	// ----------------------------------------------------------------------------
	94	// event tables
	95	// ----------------------------------------------------------------------------
	96
	97	BEGIN_EVENT_TABLE(wxPopupWindowHandler, wxEvtHandler)
	98	EVT_LEFT_DOWN(wxPopupWindowHandler::OnLeftDown)
	99	END_EVENT_TABLE()
	100
	101	BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
	102	EVT_KILL_FOCUS(wxPopupFocusHandler::OnKillFocus)
	103	EVT_KEY_DOWN(wxPopupFocusHandler::OnKeyDown)
	104	END_EVENT_TABLE()
	105
	106	BEGIN_EVENT_TABLE(wxPopupTransientWindow, wxPopupWindow)
	107	#ifdef __WXMSW__
	108	EVT_IDLE(wxPopupTransientWindow::OnIdle)
	109	#endif
	110	END_EVENT_TABLE()
	111
	112	// ============================================================================
	113	// implementation
	114	// ============================================================================
	115
	116	// ----------------------------------------------------------------------------
	117	// wxPopupWindowBase
	118	// ----------------------------------------------------------------------------
	119
	120	wxPopupWindowBase::~wxPopupWindowBase()
	121	{
	122	// this destructor is required for Darwin
	123	}
	124
	125	bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
	126	{
	127	return true;
	128	}
	129
	130	void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
	131	const wxSize& size)
	132	{
	133	wxSize sizeScreen = wxGetDisplaySize(),
	134	sizeSelf = GetSize();
	135
	136	// is there enough space to put the popup below the window (where we put it
	137	// by default)?
	138	wxCoord y = ptOrigin.y + size.y;
	139	if ( y + sizeSelf.y > sizeScreen.y )
	140	{
	141	// check if there is enough space above
	142	if ( ptOrigin.y > sizeSelf.y )
	143	{
	144	// do position the control above the window
	145	y -= size.y + sizeSelf.y;
	146	}
	147	//else: not enough space below nor above, leave below
	148	}
	149
	150	// now check left/right too
	151	wxCoord x = ptOrigin.x + size.x;
	152	if ( x + sizeSelf.x > sizeScreen.x )
	153	{
	154	// check if there is enough space to the left
	155	if ( ptOrigin.x > sizeSelf.x )
	156	{
	157	// do position the control to the left
	158	x -= size.x + sizeSelf.x;
	159	}
	160	//else: not enough space there neither, leave in default position
	161	}
	162
	163	Move(x, y, wxSIZE_NO_ADJUSTMENTS);
	164	}
	165
	166	// ----------------------------------------------------------------------------
	167	// wxPopupTransientWindow
	168	// ----------------------------------------------------------------------------
	169
	170	void wxPopupTransientWindow::Init()
	171	{
	172	m_child =
	173	m_focus = (wxWindow *)NULL;
	174
	175	m_handlerFocus = NULL;
	176	m_handlerPopup = NULL;
	177	}
	178
	179	wxPopupTransientWindow::wxPopupTransientWindow(wxWindow *parent, int style)
	180	{
	181	Init();
	182
	183	(void)Create(parent, style);
	184	}
	185
	186	wxPopupTransientWindow::~wxPopupTransientWindow()
	187	{
	188	if (m_handlerPopup && m_handlerPopup->GetNextHandler())
	189	PopHandlers();
	190
	191	wxASSERT(!m_handlerFocus \|\| !m_handlerFocus->GetNextHandler());
	192	wxASSERT(!m_handlerPopup \|\| !m_handlerPopup->GetNextHandler());
	193
	194	delete m_handlerFocus;
	195	delete m_handlerPopup;
	196	}
	197
	198	void wxPopupTransientWindow::PopHandlers()
	199	{
	200	if ( m_child )
	201	{
	202	if ( !m_child->RemoveEventHandler(m_handlerPopup) )
	203	{
	204	// something is very wrong and someone else probably deleted our
	205	// handler - so don't risk deleting it second time
	206	m_handlerPopup = NULL;
	207	}
	208	if (m_child->HasCapture())
	209	{
	210	m_child->ReleaseMouse();
	211	}
	212	m_child = NULL;
	213	}
	214
	215	if ( m_focus )
	216	{
	217	if ( !m_focus->RemoveEventHandler(m_handlerFocus) )
	218	{
	219	// see above
	220	m_handlerFocus = NULL;
	221	}
	222	}
	223	m_focus = NULL;
	224	}
	225
	226	void wxPopupTransientWindow::Popup(wxWindow *winFocus)
	227	{
	228	const wxWindowList& children = GetChildren();
	229	if ( children.GetCount() )
	230	{
	231	m_child = children.GetFirst()->GetData();
	232	}
	233	else
	234	{
	235	m_child = this;
	236	}
	237
	238	Show();
	239
	240	// There is is a problem if these are still in use
	241	wxASSERT(!m_handlerFocus \|\| !m_handlerFocus->GetNextHandler());
	242	wxASSERT(!m_handlerPopup \|\| !m_handlerPopup->GetNextHandler());
	243
	244	if (!m_handlerPopup)
	245	m_handlerPopup = new wxPopupWindowHandler(this);
	246
	247	m_child->PushEventHandler(m_handlerPopup);
	248
	249	m_focus = winFocus ? winFocus : this;
	250	m_focus->SetFocus();
	251
	252	#ifdef __WXMSW__
	253	// MSW doesn't allow to set focus to the popup window, but we need to
	254	// subclass the window which has the focus, and not winFocus passed in or
	255	// otherwise everything else breaks down
	256	m_focus = FindFocus();
	257	#elif defined(__WXGTK__)
	258	// GTK+ catches the activate events from the popup
	259	// window, not the focus events from the child window
	260	m_focus = this;
	261	#endif
	262
	263	if ( m_focus )
	264	{
	265	if (!m_handlerFocus)
	266	m_handlerFocus = new wxPopupFocusHandler(this);
	267
	268	m_focus->PushEventHandler(m_handlerFocus);
	269	}
	270	}
	271
	272	bool wxPopupTransientWindow::Show( bool show )
	273	{
	274	#ifdef __WXGTK__
	275	if (!show)
	276	{
	277	gdk_pointer_ungrab( (guint32)GDK_CURRENT_TIME );
	278
	279	gtk_grab_remove( m_widget );
	280	}
	281	#endif
	282
	283	#ifdef __WXX11__
	284	if (!show)
	285	{
	286	XUngrabPointer( wxGlobalDisplay(), CurrentTime );
	287	}
	288	#endif
	289
	290	#ifdef __WXMSW__
	291	if (!show && m_child && m_child->HasCapture())
	292	{
	293	m_child->ReleaseMouse();
	294	}
	295	#endif
	296
	297	bool ret = wxPopupWindow::Show( show );
	298
	299	#ifdef __WXGTK__
	300	if (show)
	301	{
	302	gtk_grab_add( m_widget );
	303
	304	gdk_pointer_grab( m_widget->window, TRUE,
	305	(GdkEventMask)
	306	(GDK_BUTTON_PRESS_MASK \|
	307	GDK_BUTTON_RELEASE_MASK \|
	308	GDK_POINTER_MOTION_HINT_MASK \|
	309	GDK_POINTER_MOTION_MASK),
	310	(GdkWindow *) NULL,
	311	(GdkCursor *) NULL,
	312	(guint32)GDK_CURRENT_TIME );
	313	}
	314	#endif
	315
	316	#ifdef __WXX11__
	317	if (show)
	318	{
	319	Window xwindow = (Window) m_clientWindow;
	320
	321	/* int res =*/ XGrabPointer(wxGlobalDisplay(), xwindow,
	322	True,
	323	ButtonPressMask \| ButtonReleaseMask \| ButtonMotionMask \| EnterWindowMask \| LeaveWindowMask \| PointerMotionMask,
	324	GrabModeAsync,
	325	GrabModeAsync,
	326	None,
	327	None,
	328	CurrentTime );
	329	}
	330	#endif
	331
	332	#ifdef __WXMSW__
	333	if (show && m_child)
	334	{
	335	// Assume that the mouse is outside the popup to begin with
	336	m_child->CaptureMouse();
	337	}
	338	#endif
	339
	340	return ret;
	341	}
	342
	343	void wxPopupTransientWindow::Dismiss()
	344	{
	345	Hide();
	346	PopHandlers();
	347	}
	348
	349	void wxPopupTransientWindow::DismissAndNotify()
	350	{
	351	Dismiss();
	352	OnDismiss();
	353	}
	354
	355	void wxPopupTransientWindow::OnDismiss()
	356	{
	357	// nothing to do here - but it may be interesting for derived class
	358	}
	359
	360	bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
	361	{
	362	// no special processing here
	363	return false;
	364	}
	365
	366	#ifdef __WXMSW__
	367	void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
	368	{
	369	event.Skip();
	370
	371	if (IsShown() && m_child)
	372	{
	373	wxPoint pos = ScreenToClient(wxGetMousePosition());
	374	wxRect rect(GetSize());
	375
	376	if ( rect.Contains(pos) )
	377	{
	378	if ( m_child->HasCapture() )
	379	{
	380	m_child->ReleaseMouse();
	381	}
	382	}
	383	else
	384	{
	385	if ( !m_child->HasCapture() )
	386	{
	387	m_child->CaptureMouse();
	388	}
	389	}
	390	}
	391	}
	392	#endif // __WXMSW__
	393
	394
	395	#if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
	396
	397	// ----------------------------------------------------------------------------
	398	// wxPopupComboWindow
	399	// ----------------------------------------------------------------------------
	400
	401	BEGIN_EVENT_TABLE(wxPopupComboWindow, wxPopupTransientWindow)
	402	EVT_KEY_DOWN(wxPopupComboWindow::OnKeyDown)
	403	END_EVENT_TABLE()
	404
	405	wxPopupComboWindow::wxPopupComboWindow(wxComboCtrl *parent)
	406	: wxPopupTransientWindow(parent)
	407	{
	408	m_combo = parent;
	409	}
	410
	411	bool wxPopupComboWindow::Create(wxComboCtrl *parent)
	412	{
	413	m_combo = parent;
	414
	415	return wxPopupWindow::Create(parent);
	416	}
	417
	418	void wxPopupComboWindow::PositionNearCombo()
	419	{
	420	// the origin point must be in screen coords
	421	wxPoint ptOrigin = m_combo->ClientToScreen(wxPoint(0,0));
	422
	423	#if 0 //def __WXUNIVERSAL__
	424	// account for the fact that (0, 0) is not the top left corner of the
	425	// window: there is also the border
	426	wxRect rectBorders = m_combo->GetRenderer()->
	427	GetBorderDimensions(m_combo->GetBorder());
	428	ptOrigin.x -= rectBorders.x;
	429	ptOrigin.y -= rectBorders.y;
	430	#endif // __WXUNIVERSAL__
	431
	432	// position below or above the combobox: the width is 0 to put it exactly
	433	// below us, not to the left or to the right
	434	Position(ptOrigin, wxSize(0, m_combo->GetSize().y));
	435	}
	436
	437	void wxPopupComboWindow::OnDismiss()
	438	{
	439	m_combo->OnPopupDismiss();
	440	}
	441
	442	void wxPopupComboWindow::OnKeyDown(wxKeyEvent& event)
	443	{
	444	m_combo->ProcessEvent(event);
	445	}
	446
	447	#endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
	448
	449	// ----------------------------------------------------------------------------
	450	// wxPopupWindowHandler
	451	// ----------------------------------------------------------------------------
	452
	453	void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
	454	{
	455	// let the window have it first (we're the first event handler in the chain
	456	// of handlers for this window)
	457	if ( m_popup->ProcessLeftDown(event) )
	458	{
	459	return;
	460	}
	461
	462	wxPoint pos = event.GetPosition();
	463
	464	// in non-Univ ports the system manages scrollbars for us
	465	#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
	466	// scrollbar on which the click occurred
	467	wxWindow *sbar = NULL;
	468	#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
	469
	470	wxWindow win = (wxWindow )event.GetEventObject();
	471
	472	switch ( win->HitTest(pos.x, pos.y) )
	473	{
	474	case wxHT_WINDOW_OUTSIDE:
	475	{
	476	// do the coords translation now as after DismissAndNotify()
	477	// m_popup may be destroyed
	478	wxMouseEvent event2(event);
	479
	480	m_popup->ClientToScreen(&event2.m_x, &event2.m_y);
	481
	482	// clicking outside a popup dismisses it
	483	m_popup->DismissAndNotify();
	484
	485	// dismissing a tooltip shouldn't waste a click, i.e. you
	486	// should be able to dismiss it and press the button with the
	487	// same click, so repost this event to the window beneath us
	488	wxWindow *winUnder = wxFindWindowAtPoint(event2.GetPosition());
	489	if ( winUnder )
	490	{
	491	// translate the event coords to the ones of the window
	492	// which is going to get the event
	493	winUnder->ScreenToClient(&event2.m_x, &event2.m_y);
	494
	495	event2.SetEventObject(winUnder);
	496	wxPostEvent(winUnder, event2);
	497	}
	498	}
	499	break;
	500
	501	#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
	502	case wxHT_WINDOW_HORZ_SCROLLBAR:
	503	sbar = win->GetScrollbar(wxHORIZONTAL);
	504	break;
	505
	506	case wxHT_WINDOW_VERT_SCROLLBAR:
	507	sbar = win->GetScrollbar(wxVERTICAL);
	508	break;
	509	#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
	510
	511	default:
	512	// forgot to update the switch after adding a new hit test code?
	513	wxFAIL_MSG( _T("unexpected HitTest() return value") );
	514	// fall through
	515
	516	case wxHT_WINDOW_CORNER:
	517	// don't actually know if this one is good for anything, but let it
	518	// pass just in case
	519
	520	case wxHT_WINDOW_INSIDE:
	521	// let the normal processing take place
	522	event.Skip();
	523	break;
	524	}
	525
	526	#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
	527	if ( sbar )
	528	{
	529	// translate the event coordinates to the scrollbar ones
	530	pos = sbar->ScreenToClient(win->ClientToScreen(pos));
	531
	532	// and give the event to it
	533	wxMouseEvent event2 = event;
	534	event2.m_x = pos.x;
	535	event2.m_y = pos.y;
	536
	537	(void)sbar->GetEventHandler()->ProcessEvent(event2);
	538	}
	539	#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
	540	}
	541
	542	// ----------------------------------------------------------------------------
	543	// wxPopupFocusHandler
	544	// ----------------------------------------------------------------------------
	545
	546	void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
	547	{
	548	// when we lose focus we always disappear - unless it goes to the popup (in
	549	// which case we don't really lose it)
	550	wxWindow *win = event.GetWindow();
	551	while ( win )
	552	{
	553	if ( win == m_popup )
	554	return;
	555	win = win->GetParent();
	556	}
	557
	558	m_popup->DismissAndNotify();
	559	}
	560
	561	void wxPopupFocusHandler::OnKeyDown(wxKeyEvent& event)
	562	{
	563	// let the window have it first, it might process the keys
	564	if ( !m_popup->ProcessEvent(event) )
	565	{
	566	// by default, dismiss the popup
	567	m_popup->DismissAndNotify();
	568	}
	569	}
	570
	571	#endif // wxUSE_POPUPWIN