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Diffstat (limited to 'src/imports/dialogs/qquickplatformmessagedialog.cpp')
| -rw-r--r-- | src/imports/dialogs/qquickplatformmessagedialog.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/src/imports/dialogs/qquickplatformmessagedialog.cpp b/src/imports/dialogs/qquickplatformmessagedialog.cpp new file mode 100644 index 0000000000..0e21212711 --- /dev/null +++ b/src/imports/dialogs/qquickplatformmessagedialog.cpp @@ -0,0 +1,206 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtQuick.Dialogs module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickplatformmessagedialog_p.h" +#include "qquickitem.h" + +#include <private/qguiapplication_p.h> +#include <QWindow> +#include <QQuickView> +#include <QQuickWindow> + +QT_BEGIN_NAMESPACE + +/*! + \qmltype MessageDialog + \instantiates QQuickPlatformMessageDialog + \inqmlmodule QtQuick.Dialogs 1 + \ingroup dialogs + \brief Dialog component for displaying popup messages. + \since Qt 5.2 + + The most basic use case for a MessageDialog is a popup alert. It also + allows the user to respond in various ways depending on which buttons are + enabled. The dialog is initially invisible. You need to set the properties + as desired first, then set \l visible to true or call \l open(). + + Here is a minimal example to show an alert and exit after the user + responds: + + \qml + import QtQuick 2.2 + import QtQuick.Dialogs 1.1 + + MessageDialog { + id: messageDialog + title: "May I have your attention please" + text: "It's so cool that you are using Qt Quick." + onAccepted: { + console.log("And of course you could only agree.") + Qt.quit() + } + Component.onCompleted: visible = true + } + \endqml + + A MessageDialog window is automatically transient for its parent window. So + whether you declare the dialog inside an \l Item or inside a \l Window, the + dialog will appear centered over the window containing the item, or over + the Window that you declared. + + The implementation of MessageDialog will be a platform message dialog if + possible. If that isn't possible, then it will try to instantiate a + \l QMessageBox. If that also isn't possible, then it will fall back to a QML + implementation, DefaultMessageDialog.qml. In that case you can customize the + appearance by editing this file. DefaultMessageDialog.qml contains a Rectangle + to hold the dialog's contents, because certain embedded systems do not + support multiple top-level windows. When the dialog becomes visible, it + will automatically be wrapped in a Window if possible, or simply reparented + on top of the main window if there can only be one window. +*/ + +/*! + \qmlsignal QtQuick::Dialogs::MessageDialog::accepted + + This handler is called when the user has pressed OK. +*/ + +/*! + \qmlsignal QtQuick::Dialogs::MessageDialog::rejected + + This handler is called when the user has dismissed the dialog, + either by closing the dialog window or by pressing the Cancel button. +*/ + +/*! + \class QQuickPlatformMessageDialog + \inmodule QtQuick.Dialogs + \internal + + \brief The QQuickPlatformMessageDialog class provides a message dialog + + The dialog is implemented via the QPlatformMessageDialogHelper when possible; + otherwise it falls back to a QMessageBox or a QML implementation. + + \since 5.2 +*/ + +/*! + Constructs a file dialog with parent window \a parent. +*/ +QQuickPlatformMessageDialog::QQuickPlatformMessageDialog(QObject *parent) : + QQuickAbstractMessageDialog(parent) +{ +} + +/*! + Destroys the file dialog. +*/ +QQuickPlatformMessageDialog::~QQuickPlatformMessageDialog() +{ + if (m_dlgHelper) + m_dlgHelper->hide(); + delete m_dlgHelper; +} + +QPlatformMessageDialogHelper *QQuickPlatformMessageDialog::helper() +{ + QQuickItem *parentItem = qobject_cast<QQuickItem *>(parent()); + if (parentItem) + m_parentWindow = parentItem->window(); + + if ( !m_dlgHelper && QGuiApplicationPrivate::platformTheme()-> + usePlatformNativeDialog(QPlatformTheme::MessageDialog) ) { + m_dlgHelper = static_cast<QPlatformMessageDialogHelper *>(QGuiApplicationPrivate::platformTheme() + ->createPlatformDialogHelper(QPlatformTheme::MessageDialog)); + if (!m_dlgHelper) + return m_dlgHelper; + connect(m_dlgHelper, SIGNAL(accept()), this, SLOT(accept())); + connect(m_dlgHelper, SIGNAL(reject()), this, SLOT(reject())); + } + + return m_dlgHelper; +} + +/*! + \qmlproperty bool MessageDialog::visible + + This property holds whether the dialog is visible. By default this is + false. + + \sa modality +*/ + +/*! + \qmlproperty Qt::WindowModality MessageDialog::modality + + Whether the dialog should be shown modal with respect to the window + containing the dialog's parent Item, modal with respect to the whole + application, or non-modal. + + By default it is \c Qt.WindowModal. + + Modality does not mean that there are any blocking calls to wait for the + dialog to be accepted or rejected; it's only that the user will be + prevented from interacting with the parent window and/or the application + windows at the same time. +*/ + +/*! + \qmlmethod void MessageDialog::open() + + Shows the dialog to the user. It is equivalent to setting \l visible to + true. +*/ + +/*! + \qmlmethod void MessageDialog::close() + + Closes the dialog. +*/ + +/*! + \qmlproperty string MessageDialog::title + + The title of the dialog window. +*/ + +QT_END_NAMESPACE |