fixed modal dialogs after event loop change
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23618 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -20,7 +20,7 @@
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WXDLLEXPORT_DATA(extern const wxChar*) wxDialogNameStr;
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class WXDLLEXPORT wxWindowDisabler;
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class WXDLLEXPORT wxDialogModalData;
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// Dialog boxes
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class WXDLLEXPORT wxDialog : public wxDialogBase
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@@ -116,9 +116,9 @@ protected:
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private:
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wxWindow *m_oldFocus;
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// while we are showing a modal dialog we disable the other windows using
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// this object
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wxWindowDisabler *m_windowDisabler;
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// this pointer is non-NULL only while the modal event loop is running
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wxDialogModalData *m_modalData;
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DECLARE_DYNAMIC_CLASS(wxDialog)
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DECLARE_EVENT_TABLE()
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@@ -58,13 +58,6 @@
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#define wxDIALOG_DEFAULT_WIDTH 500
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#define wxDIALOG_DEFAULT_HEIGHT 500
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// ----------------------------------------------------------------------------
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// globals
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// ----------------------------------------------------------------------------
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// all modal dialogs currently shown
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static wxWindowList wxModalDialogs;
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// ----------------------------------------------------------------------------
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// wxWin macros
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// ----------------------------------------------------------------------------
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@@ -138,6 +131,42 @@ BEGIN_EVENT_TABLE(wxDialog, wxDialogBase)
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EVT_CLOSE(wxDialog::OnCloseWindow)
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END_EVENT_TABLE()
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// ----------------------------------------------------------------------------
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// wxDialogModalData
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// ----------------------------------------------------------------------------
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// this is simply a container for wxEventLoop and wxWindowDisabler which allows
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// to have a single opaque pointer in wxDialog itself
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class wxDialogModalData
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{
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public:
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wxDialogModalData() { m_windowDisabler = NULL; }
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void RunLoop(wxDialog *dialog)
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{
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m_windowDisabler = new wxWindowDisabler(dialog);
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m_evtLoop.Run();
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}
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void ExitLoop()
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{
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delete m_windowDisabler;
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m_windowDisabler = NULL;
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m_evtLoop.Exit();
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}
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~wxDialogModalData()
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{
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wxASSERT_MSG( !m_windowDisabler, _T("forgot to call ExitLoop?") );
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}
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private:
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wxEventLoop m_evtLoop;
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wxWindowDisabler *m_windowDisabler;
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};
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// ============================================================================
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// implementation
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// ============================================================================
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@@ -152,7 +181,7 @@ void wxDialog::Init()
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m_isShown = FALSE;
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m_windowDisabler = (wxWindowDisabler *)NULL;
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m_modalData = NULL;
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SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
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}
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@@ -247,7 +276,7 @@ bool wxDialog::IsModal() const
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bool wxDialog::IsModalShowing() const
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{
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return wxModalDialogs.Find(wxConstCast(this, wxDialog)) != NULL;
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return m_modalData != NULL;
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}
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wxWindow *wxDialog::FindSuitableParent() const
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@@ -277,8 +306,6 @@ void wxDialog::DoShowModal()
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wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") );
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wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") );
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wxModalDialogs.Append(this);
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wxWindow *parent = GetParent();
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wxWindow* oldFocus = m_oldFocus;
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@@ -298,11 +325,6 @@ void wxDialog::DoShowModal()
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hwndOldFocus = GetHwndOf(parent);
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}
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// disable all other app windows
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wxASSERT_MSG( !m_windowDisabler, _T("disabling windows twice?") );
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m_windowDisabler = new wxWindowDisabler(this);
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// before entering the modal loop, reset the "is in OnIdle()" flag (see
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// comment in app.cpp)
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extern bool wxIsInOnIdleFlag;
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@@ -310,8 +332,10 @@ void wxDialog::DoShowModal()
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wxIsInOnIdleFlag = FALSE;
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// enter the modal loop
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wxEventLoop evtLoop;
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evtLoop.Run();
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m_modalData = new wxDialogModalData;
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m_modalData->RunLoop(this);
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delete m_modalData;
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m_modalData = NULL;
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wxIsInOnIdleFlag = wasInOnIdle;
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@@ -329,16 +353,14 @@ void wxDialog::DoShowModal()
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bool wxDialog::Show(bool show)
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{
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if ( !show )
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if ( !show && m_modalData )
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{
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// if we had disabled other app windows, reenable them back now because
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// we need to do this before calling wxDialogBase version because if we
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// had disabled other app windows, they must be reenabled right now as
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// if they stay disabled Windows will activate another window (one
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// which is enabled, anyhow) and we will lose activation
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if ( m_windowDisabler )
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{
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delete m_windowDisabler;
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m_windowDisabler = NULL;
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}
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// which is enabled, anyhow) when we're hidden in the base class Show()
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// and we will lose activation
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m_modalData->ExitLoop();
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}
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// ShowModal() may be called for already shown dialog
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@@ -358,13 +380,11 @@ bool wxDialog::Show(bool show)
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// every time is simpler than keeping a flag
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Layout();
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// usually will result in TransferDataToWindow() being called
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// this usually will result in TransferDataToWindow() being called
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InitDialog();
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}
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if ( IsModal() )
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{
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if ( show )
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if ( show && IsModal() )
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{
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// modal dialog needs a parent window, so try to find one
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if ( !GetParent() )
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@@ -374,17 +394,6 @@ bool wxDialog::Show(bool show)
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DoShowModal();
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}
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else // end of modal dialog
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{
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// this will cause IsModalShowing() return FALSE and our local
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// message loop will terminate
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wxModalDialogs.DeleteObject(this);
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// ensure that there is another message for this window so the
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// ShowModal loop will exit and won't get stuck in GetMessage().
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::PostMessage(GetHwnd(), WM_NULL, 0, 0);
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}
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}
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return TRUE;
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}
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