qtmailwindow.cpp

Qtopia下的邮件处理程序

/****************************************************************************
**
** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
**
** This file is part of the Phone Edition of the Qtopia Toolkit.
**
** Licensees holding a valid license agreement from Trolltech or any of its
** authorized distributors may use this file in accordance with
** the License Agreement provided with the Licensed Software.
**
** See http://www.trolltech.com/pricing.html or email [e-mail] for
**   information about Trolltech's Commercial License Agreements.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**
**
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/



#include "qtmailwindow.h"
#include "writemail.h"

#ifdef QTOPIA_DESKTOP
#include <qcopenvelope_qd.h>
#else
#include <qtopia/qcopenvelope.h>
#include <qtopia/qtopiaapplication.h>
#endif
#include <qdatetime.h>
#include <qtimer.h>
#include <QDebug>


QTMailWindow *QTMailWindow::self = 0;

#ifdef QTOPIA_DESKTOP
QTMailWindow::QTMailWindow()
    : QTMailGui()
{
}
#else
QTMailWindow::QTMailWindow(QWidget *parent, Qt::WFlags fl)
    : QTMailGui(parent, fl), parentWidget( this ), noShow(false)
{
    init();
}
#endif

void QTMailWindow::init()
{
    self = this;
    views = new QStackedWidget(parentWidget);

#ifdef QTOPIA_DESKTOP
    mOpenedByUser = true;
#else
    QtopiaApplication *qpe = (QtopiaApplication *) qApp;
    mOpenedByUser = qpe->keepRunning();
#endif

#if 0
    // Passing the correct parent for EmailClient does NOT work
    // doing so causes a blank screen to be shown
    emailClient = new EmailClient(views, "client"); // No tr
#else
    // Pass in an incorrect parent, a warning
    // "QLayout::addChildWidget: EmailClient "client" in wrong parent; "
    // "moved to correct parent" will be shown, but this is necessary
    // to make the emailClient QMainWindow display.
    // This seems to be a QMainWindow in a QStackedWidget bug
    emailClient = new EmailClient(this, "client"); // No tr
#endif   
    connect(emailClient, SIGNAL( raiseWidget(QWidget*,const QString&) ),
	    this, SLOT( raiseWidget(QWidget*,const QString&) ) );
    views->addWidget(emailClient);

    views->setCurrentWidget(emailClient);

#ifndef QTOPIA_DESKTOP
    setCentralWidget(views);
    setWindowTitle( emailClient->windowTitle() );
#endif
}

QTMailWindow::~QTMailWindow()
{
    if (emailClient)
	emailClient->cleanExit( true );
}

void QTMailWindow::closeEvent(QCloseEvent *e)
{
    if (views->currentWidget() != emailClient) {
	//because closeEvent is passed to this instead of sub qtmainwindows

	// We have to test for w = 0 (means none visible) since mWriteMail/mReadMail would
	// also be 0 if they haven't yet been created
	QWidget *w = views->currentWidget();
	if ( w ) {
	    if (w == emailClient->mWriteMail ) {
#ifdef QTOPIA_PHONE
		if ( !emailClient->mWriteMail->hasContent() ) {
                    emailClient->writeMailWidget()->discard();
		    e->ignore();
		    return;
                }
                if (!Qtopia::mousePreferred() && 
		    emailClient->mWriteMail->keyPressAccepted()) {
                    e->ignore();
                    return;
                }
		emailClient->writeMailWidget()->tryAccept();
#else
		if( !emailClient->writeMailWidget()->tryAccept() )
		    emailClient->writeMailWidget()->discard();
		return; //call from writemail will be caught by emailclient
#endif
	    } else if (w == emailClient->mReadMail ) {
		emailClient->readMailWidget()->close();
		e->ignore();
		return;
	    }

	    w->hide();
	}
	
	views->setCurrentWidget(emailClient);
        if (emailClient->focusWidget())
            emailClient->focusWidget()->setFocus();
#ifndef QTOPIA_DESKTOP
	setWindowTitle( emailClient->windowTitle() );
#endif
	emailClient->update();
	// needed to work with context-help
	setObjectName( w->objectName() );

	e->ignore();
    } else {
	if (Qtopia::mousePreferred() &&
	    emailClient->currentMailboxWidgetId() == emailClient->currentMessageId() ) {
	    emailClient->showFolderList();
	    return;
	}
	
	if (emailClient->isTransmitting()) {
	    emailClient->closeAfterTransmissionsFinished();
#ifndef QTOPIA_DESKTOP
	    hide();
#endif
	    e->ignore();
	    return;
	} else {
	    e->accept();
	}
    }
}

void QTMailWindow::forceHidden(bool hidden)
{
    noShow = hidden;
}

void QTMailWindow::setVisible(bool visible)
{
    if (noShow && visible)
        return;
    QTMailGui::setVisible(visible);
}

void QTMailWindow::setDocument(const QString &_address)
{
    emailClient->setDocument(_address);
}

void QTMailWindow::raiseWidget(QWidget *w, const QString &caption)
{
    if ( caption == "qcop") {
	//the emailclient can't raise itself, only we can
#ifndef QTOPIA_DESKTOP
	raise();
#endif
    } else {
	views->setCurrentWidget(w);
        if (w->focusWidget())
            w->focusWidget()->setFocus(); // Needed, but don't know why.
#ifndef QTOPIA_DESKTOP
	setWindowTitle( caption );
#endif
	
	// needed to work with context-help
	setObjectName( w->objectName() );
    }
}

QTMailWindow* QTMailWindow::singleton()
{
    return self;
}

bool QTMailWindow::openedByUser()
{
    return mOpenedByUser;
}