/********************************************************************
 This file is part of the KDE project.

Copyright (C) 2014 Aleix Pol Gonzalez <aleixpol@blue-systems.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/

import QtQuick 2.0
import QtQuick.Controls 1.1
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.private.sessions 2.0
import "../components"

Image {
    id: root
    property bool viewVisible: false
    property bool debug: false
    property string notification
    property Item userSelect: null
    property int interfaceVersion: org_kde_plasma_screenlocker_greeter_interfaceVersion ? org_kde_plasma_screenlocker_greeter_interfaceVersion : 0
    signal clearPassword()

    source: backgroundPath || "../components/artwork/background.png"
    fillMode: Image.PreserveAspectCrop
    asynchronous: true

    onStatusChanged: {
        if (status == Image.Error) {
            source = "../components/artwork/background.png";
        }
    }

    LayoutMirroring.enabled: Qt.application.layoutDirection === Qt.RightToLeft
    LayoutMirroring.childrenInherit: true

    Connections {
        target: authenticator
        onFailed: {
            root.notification = i18nd("plasma_lookandfeel_org.kde.lookandfeel","Unlocking failed");
        }
        onGraceLockedChanged: {
            if (!authenticator.graceLocked) {
                root.notification = "";
                root.clearPassword();
            }
        }
        onMessage: {
            root.notification = msg;
        }
        onError: {
            root.notification = err;
        }
    }

    SessionsModel {
        id: sessionsModel
    }

    PlasmaCore.DataSource {
        id: keystateSource
        engine: "keystate"
        connectedSources: "Caps Lock"
    }

    StackView {
        id: stackView
        anchors.fill: parent

        initialItem: Loader {
            active: root.viewVisible
            source: "MainBlock.qml"
        }
    }

    Component.onCompleted: {
        // version support checks
        if (root.interfaceVersion < 1) {
            // ksmserver of 5.4, with greeter of 5.5
            root.viewVisible = true;
        }
    }
}