/*
    SPDX-FileCopyrightText: 2013 Marco Martin <mart@kde.org>

    SPDX-License-Identifier: GPL-2.0-or-later
*/
import QtQuick 2.0
import QtQuick.Layouts 1.1
import QtQuick.Window 2.0
import QtGraphicalEffects 1.0

import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 2.0 as PlasmaComponents
import org.kde.kquickcontrolsaddons 2.0

import org.kde.latte.core 0.2 as LatteCore

PlasmaCore.ToolTipArea {
    id: root
    objectName: "org.kde.desktop-CompactApplet"
    anchors.fill: parent

    mainText: plasmoid.toolTipMainText
    subText: plasmoid.toolTipSubText
    location: plasmoid.location
    active: !plasmoid.expanded
    textFormat: plasmoid.toolTipTextFormat
    mainItem: plasmoid.toolTipItem ? plasmoid.toolTipItem : null

    property Item fullRepresentation: null
    property Item compactRepresentation: null
    /*Discover real visual parent - the following code points to Applet::ItemWrapper*/
    property Item originalCompactRepresenationParent: null
    property Item compactRepresentationVisualParent: originalCompactRepresenationParent && originalCompactRepresenationParent.parent
                                                     ? originalCompactRepresenationParent.parent.parent : null

    property Item appletItem: compactRepresentationVisualParent
                              && compactRepresentationVisualParent.parent
                              && compactRepresentationVisualParent.parent.parent ? compactRepresentationVisualParent.parent.parent.parent : null

    onCompactRepresentationChanged: {
        if (compactRepresentation) {
            originalCompactRepresenationParent = compactRepresentation.parent;

            compactRepresentation.parent = root;
            compactRepresentation.anchors.centerIn = root;
            compactRepresentation.width = Qt.binding(function() {
                return root.width;
            });

            compactRepresentation.height = Qt.binding(function() {
                return root.height;
            });

            compactRepresentation.visible = true;
        }
        root.visible = true;
    }

    onFullRepresentationChanged: {

        if (!fullRepresentation) {
            return;
        }

        //if the fullRepresentation size was restored to a stored size, or if is dragged from the desktop, restore popup size
        if (fullRepresentation.Layout && fullRepresentation.Layout.preferredWidth > 0) {
            popupWindow.mainItem.width = Qt.binding(function() {
                return fullRepresentation.Layout.preferredWidth
            })
        } else if (fullRepresentation.implicitWidth > 0) {
            popupWindow.mainItem.width = Qt.binding(function() {
                return fullRepresentation.implicitWidth
            })
        } else if (fullRepresentation.width > 0) {
            popupWindow.mainItem.width = Qt.binding(function() {
                return fullRepresentation.width
            })
        } else {
            popupWindow.mainItem.width = Qt.binding(function() {
                return PlasmaCore.Theme.mSize(PlasmaCore.Theme.defaultFont).width * 35
            })
        }

        if (fullRepresentation.Layout && fullRepresentation.Layout.preferredHeight > 0) {
            popupWindow.mainItem.height = Qt.binding(function() {
                return fullRepresentation.Layout.preferredHeight
            })
        } else if (fullRepresentation.implicitHeight > 0) {
            popupWindow.mainItem.height = Qt.binding(function() {
                return fullRepresentation.implicitHeight
            })
        } else if (fullRepresentation.height > 0) {
            popupWindow.mainItem.height = Qt.binding(function() {
                return fullRepresentation.height
            })
        } else {
            popupWindow.mainItem.height = Qt.binding(function() {
                return PlasmaCore.Theme.mSize(PlasmaCore.Theme.defaultFont).height * 25
            })
        }

        fullRepresentation.parent = appletParent;
        fullRepresentation.anchors.fill = fullRepresentation.parent;
    }

   /* PlasmaCore.FrameSvgItem {
        id: expandedItem
        anchors.fill: parent
        imagePath: "widgets/tabbar"
        visible: fromCurrentTheme && opacity > 0
        prefix: {
            var prefix;
            switch (plasmoid.location) {
                case PlasmaCore.Types.LeftEdge:
                    prefix = "west-active-tab";
                    break;
                case PlasmaCore.Types.TopEdge:
                    prefix = "north-active-tab";
                    break;
                case PlasmaCore.Types.RightEdge:
                    prefix = "east-active-tab";
                    break;
                default:
                    prefix = "south-active-tab";
                }
                if (!hasElementPrefix(prefix)) {
                    prefix = "active-tab";
                }
                return prefix;
            }
        opacity: plasmoid.expanded ? 1 : 0
        Behavior on opacity {
            NumberAnimation {
                duration: PlasmaCore.Units.shortDuration
                easing.type: Easing.InOutQuad
            }
        }
    }*/

    //! This timer is needed in order for the applet popup to not reshow instantly and faulty after the user
    //! clicks compact representation to hide it
    Timer {
        id: expandedSync
        interval: 500
        onTriggered: plasmoid.expanded = popupWindow.visible;
    }

    Connections {
        target: plasmoid.action("configure")
        function onTriggered() { plasmoid.expanded = false }
    }

    Connections {
        target: plasmoid
        function onContextualActionsAboutToShow() { root.hideToolTip() }
    }

    LatteCore.Dialog {
        id: popupWindow
        objectName: "popupWindow"
        flags: Qt.WindowStaysOnTopHint
        visible: plasmoid.expanded && fullRepresentation
        visualParent: compactRepresentationVisualParent ? compactRepresentationVisualParent : (compactRepresentation ? compactRepresentation : null)
       // location: PlasmaCore.Types.Floating //plasmoid.location
        edge: plasmoid.location /*this way dialog borders are not updated and it is used only for adjusting dialog position*/
        hideOnWindowDeactivate: plasmoid.hideOnWindowDeactivate
        backgroundHints: (plasmoid.containmentDisplayHints & PlasmaCore.Types.DesktopFullyCovered) ? PlasmaCore.Dialog.SolidBackground : PlasmaCore.Dialog.StandardBackground

        property var oldStatus: PlasmaCore.Types.UnknownStatus

        //It's a MouseEventListener to get all the events, so the eventfilter will be able to catch them
        mainItem: MouseEventListener {
            id: appletParent

            focus: true

            Keys.onEscapePressed: {
                plasmoid.expanded = false;
            }

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

            Layout.minimumWidth: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.minimumWidth : 0
            Layout.minimumHeight: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.minimumHeight: 0

            Layout.preferredWidth: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.preferredWidth : -1
            Layout.preferredHeight: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.preferredHeight: -1

            Layout.maximumWidth: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.maximumWidth : Infinity
            Layout.maximumHeight: (fullRepresentation && fullRepresentation.Layout) ? fullRepresentation.Layout.maximumHeight: Infinity

            onActiveFocusChanged: {
                if (activeFocus && fullRepresentation) {
                    fullRepresentation.forceActiveFocus()
                }
            }
        }

        onVisibleChanged: {
            if (!visible) {
                expandedSync.restart();
                plasmoid.status = oldStatus;
            } else {
                oldStatus = plasmoid.status;
                plasmoid.status = PlasmaCore.Types.RequiresAttentionStatus;
                // This call currently fails and complains at runtime:
                // QWindow::setWindowState: QWindow::setWindowState does not accept Qt::WindowActive
                popupWindow.requestActivate();
            }
        }
    }

    ////Indicators API ////
    Binding {
        target: compactRepresentation ? compactRepresentation.anchors : null
        property: "horizontalCenterOffset"
        when: compactRepresentation
        value: appletItem ? appletItem.iconOffsetX : 0
    }

    Binding {
        target: compactRepresentation ? compactRepresentation.anchors : null
        property: "verticalCenterOffset"
        when: compactRepresentation
        value: appletItem ? appletItem.iconOffsetY : 0
    }

    Binding {
        target: root
        property: "transformOrigin"
        value: appletItem && compactRepresentation ? appletItem.iconTransformOrigin : Item.Center
    }

    Binding {
        target: root
        property: "opacity"
        value: appletItem && compactRepresentation ? appletItem.iconOpacity : 1.0
    }

    Binding {
        target: root
        property: "rotation"
        value: appletItem && compactRepresentation ? appletItem.iconRotation : 0
    }

    Binding {
        target: root
        property: "scale"
        value: appletItem && compactRepresentation ? appletItem.iconScale : 1.0
    }

    ////Clicked Effect ////
    BrightnessContrast {
        id: _clickedEffect
        anchors.centerIn: parent
        anchors.horizontalCenterOffset: compactRepresentation ? compactRepresentation.anchors.horizontalCenterOffset : 0
        anchors.verticalCenterOffset: compactRepresentation ? compactRepresentation.anchors.verticalCenterOffset : 0
        source: compactRepresentation
        width: root.width
        height: root.height
        visible: appletItem && clickedAnimation.running && !appletItem.indicators.info.providesClickedAnimation
        z:1000
    }

    /////Clicked Animation/////
    SequentialAnimation{
        id: clickedAnimation
        alwaysRunToEnd: true
        running: appletItem
                 && appletItem.animations
                 && appletItem.indicators
                 && appletItem.isSquare
                 && appletItem.pressed
                 && !appletItem.originalAppletBehavior
                 && (appletItem.animations.speedFactor.current > 0)
                 && !appletItem.indicators.info.providesClickedAnimation

        ParallelAnimation{
            PropertyAnimation {
                target: _clickedEffect
                property: "brightness"
                to: -0.35
                duration: appletItem && appletItem.animations ? appletItem.animations.duration.large : 0
                easing.type: Easing.OutQuad
            }
        }
        ParallelAnimation{
            PropertyAnimation {
                target: _clickedEffect
                property: "brightness"
                to: 0
                duration: appletItem && appletItem.animations ? appletItem.animations.duration.large : 0
                easing.type: Easing.OutQuad
            }
        }
    }
    //END animations
}