//
//  FileDialog.qml
//
//  Created by Anthony Thibault on 31 Oct 2016
//  Copyright 2016 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

import QtQuick 2.0

Item {
    id: keyboardBase

    property bool raised: false
    property bool numeric: false

    readonly property int raisedHeight: 200

    height: enabled && raised ? raisedHeight : 0
    visible: enabled && raised

    property bool shiftMode: false

    function resetShiftMode(mode) {
        shiftMode = mode;
        shiftKey.resetToggledMode(mode);
    }

    function toUpper(str) {
        if (str === ",") {
            return "<";
        } else if (str === ".") {
            return ">";
        } else if (str === "/") {
            return "?";
        } else {
            return str.toUpperCase(str);
        }
    }

    function toLower(str) {
        if (str === "<") {
            return ",";
        } else if (str === ">") {
            return ".";
        } else if (str === "?") {
            return "/";
        } else {
            return str.toLowerCase(str);
        }
    }

    function forEachKey(func) {
        var i, j;
        for (i = 0; i < columnAlpha.children.length; i++) {
            var row = columnAlpha.children[i];
            for (j = 0; j < row.children.length; j++) {
                var key = row.children[j];
                func(key);
            }
        }
    }

    onShiftModeChanged: {
        forEachKey(function (key) {
            if (shiftMode) {
                key.glyph = keyboardBase.toUpper(key.glyph);
            } else {
                key.glyph = keyboardBase.toLower(key.glyph);
            }
        });
    }

    function alphaKeyClickedHandler(mouseArea) {
        // reset shift mode to false after first keypress
        if (shiftMode) {
            resetShiftMode(false);
        }
    }

    Component.onCompleted: {
        // hook up callbacks to every ascii key
        forEachKey(function (key) {
            if (/^[a-z]+$/i.test(key.glyph)) {
                key.mouseArea.onClicked.connect(alphaKeyClickedHandler);
            }
        });
    }

    Rectangle {
        id: leftRect
        y: 0
        height: 200
        color: "#252525"
        anchors.right: keyboardRect.left
        anchors.rightMargin: 0
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 0
        anchors.left: parent.left
        anchors.leftMargin: 0
    }

    Rectangle {
        id: keyboardRect
        x: 206
        y: 0
        width: 480
        height: 200
        color: "#252525"
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 0

        Column {
            id: columnAlpha
            width: 480
            height: 200
            visible: !numeric

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 0

                Key {
                    width: 44
                    glyph: "q"
                }

                Key {
                    width: 44
                    glyph: "w"
                }

                Key {
                    width: 44
                    glyph: "e"
                }

                Key {
                    width: 43
                    glyph: "r"
                }

                Key {
                    width: 43
                    glyph: "t"
                }

                Key {
                    width: 44
                    glyph: "y"
                }

                Key {
                    width: 44
                    glyph: "u"
                }

                Key {
                    width: 43
                    glyph: "i"
                }

                Key {
                    width: 42
                    glyph: "o"
                }

                Key {
                    width: 44
                    glyph: "p"
                }

                Key {
                    width: 45
                    glyph: "←"
                }
            }

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 18

                Key {
                    width: 43
                }

                Key {
                    width: 43
                    glyph: "s"
                }

                Key {
                    width: 43
                    glyph: "d"
                }

                Key {
                    width: 43
                    glyph: "f"
                }

                Key {
                    width: 43
                    glyph: "g"
                }

                Key {
                    width: 43
                    glyph: "h"
                }

                Key {
                    width: 43
                    glyph: "j"
                }

                Key {
                    width: 43
                    glyph: "k"
                }

                Key {
                    width: 43
                    glyph: "l"
                }

                Key {
                    width: 75
                    glyph: "⏎"
                }
            }

            Row {
                id: row3
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 0

                Key {
                    id: shiftKey
                    width: 46
                    glyph: "⇪"
                    toggle: true
                    onToggledChanged: {
                        shiftMode = toggled;
                    }
                }

                Key {
                    width: 43
                    glyph: "z"
                }

                Key {
                    width: 43
                    glyph: "x"
                }

                Key {
                    width: 43
                    glyph: "c"
                }

                Key {
                    width: 43
                    glyph: "v"
                }

                Key {
                    width: 43
                    glyph: "b"
                }

                Key {
                    width: 43
                    glyph: "n"
                }

                Key {
                    width: 44
                    glyph: "m"
                }

                Key {
                    width: 43
                    glyph: "_"
                }

                Key {
                    width: 43
                    glyph: "?"
                }

                Key {
                    width: 46
                    glyph: "/"
                }

            }

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 19

                Key {
                    width: 89
                    glyph: "&123"
                    mouseArea.onClicked: {
                        keyboardBase.parent.punctuationMode = true;
                    }
                }

                Key {
                    width: 285
                    glyph: " "
                }

                Key {
                    width: 43
                    glyph: "⇦"
                }

                Key {
                    x: 343
                    width: 43
                    glyph: "⇨"
                }

            }
        }

        Column {
            id: columnNumeric
            width: 480
            height: 200
            visible: numeric

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 0

                Key {
                    width: 43
                    glyph: "1"
                }

                Key {
                    width: 43
                    glyph: "2"
                }

                Key {
                    width: 43
                    glyph: "3"
                }

                Key {
                    width: 43
                    glyph: "4"
                }

                Key {
                    width: 43
                    glyph: "5"
                }

                Key {
                    width: 43
                    glyph: "6"
                }

                Key {
                    width: 43
                    glyph: "7"
                }

                Key {
                    width: 43
                    glyph: "8"
                }

                Key {
                    width: 43
                    glyph: "9"
                }

                Key {
                    width: 43
                    glyph: "0"
                }

                Key {
                    width: 50
                    glyph: "←"
                }
            }

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 0

                Key {
                    width: 43
                    glyph: "!"
                }

                Key {
                    width: 43
                    glyph: "@"
                }

                Key {
                    width: 43
                    glyph: "#"
                }

                Key {
                    width: 43
                    glyph: "$"
                }

                Key {
                    width: 43
                    glyph: "%"
                }

                Key {
                    width: 43
                    glyph: "^"
                }

                Key {
                    width: 43
                    glyph: "&"
                }

                Key {
                    width: 43
                    glyph: "*"
                }

                Key {
                    width: 43
                    glyph: "("
                }

                Key {
                    width: 43
                    glyph: ")"
                }

                Key {
                    width: 50
                    glyph: "⏎"
                }
            }

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 4

                Key {
                    width: 43
                    glyph: "="
                }

                Key {
                    width: 43
                    glyph: "+"
                }

                Key {
                    width: 43
                    glyph: "-"
                }

                Key {
                    width: 43
                    glyph: ","
                }

                Key {
                    width: 43
                    glyph: "."
                }

                Key {
                    width: 43
                    glyph: ";"
                }

                Key {
                    width: 43
                    glyph: ":"
                }

                Key {
                    width: 43
                    glyph: "'"
                }

                Key {
                    width: 43
                    glyph: "\""
                }

                Key {
                    width: 43
                    glyph: "<"
                }

                Key {
                    width: 43
                    glyph: ">"
                }

            }

            Row {
                width: 480
                height: 50
                anchors.left: parent.left
                anchors.leftMargin: 19

                Key {
                    width: 65
                    glyph: "abc"
                    mouseArea.onClicked: {
                        keyboardBase.parent.punctuationMode = false
                    }
                }

                Key {
                    width: 285
                    glyph: " "
                }

                Key {
                    width: 43
                    glyph: "⇦"
                }

                Key {
                    x: 343
                    width: 43
                    glyph: "⇨"
                }

            }
        }
    }

    Rectangle {
        id: rightRect
        y: 280
        height: 200
        color: "#252525"
        border.width: 0
        anchors.left: keyboardRect.right
        anchors.leftMargin: 0
        anchors.right: parent.right
        anchors.rightMargin: 0
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 0
    }

    Rectangle {
        id: rectangle1
        color: "#ffffff"
        anchors.bottom: keyboardRect.top
        anchors.bottomMargin: 0
        anchors.left: parent.left
        anchors.leftMargin: 0
        anchors.right: parent.right
        anchors.rightMargin: 0
        anchors.top: parent.top
        anchors.topMargin: 0
    }

}