"use strict";

// Class definition
var KTDocsModal = function () {
    // Shared variables
    var element;

    // Private functions
    const initDraggableModal = () => {
        // Make the DIV element draggable:
        dragElement(element);

        function dragElement(elmnt) {
            var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
            if (elmnt.querySelector('.modal-content')) {
                // if present, the modal container is where you move the DIV from:
                elmnt.querySelector('.modal-content').onmousedown = dragMouseDown;
            } else {
                // otherwise, move the DIV from anywhere inside the DIV:
                elmnt.onmousedown = dragMouseDown;
            }

            function dragMouseDown(e) {
                e = e || window.event;
                e.preventDefault();
                // get the mouse cursor position at startup:
                pos3 = e.clientX;
                pos4 = e.clientY;
                document.onmouseup = closeDragElement;
                // call a function whenever the cursor moves:
                document.onmousemove = elementDrag;
            }

            function elementDrag(e) {
                e = e || window.event;
                e.preventDefault();
                // calculate the new cursor position:
                pos1 = pos3 - e.clientX;
                pos2 = pos4 - e.clientY;
                pos3 = e.clientX;
                pos4 = e.clientY;
                // set the element's new position:
                elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
                elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
            }

            function closeDragElement() {
                // stop moving when mouse button is released:
                document.onmouseup = null;
                document.onmousemove = null;
            }
        }
    }

    // Public methods
    return {
        init: function () {
            // Elements
            element = document.querySelector('#kt_modal_3');

            if (!element) {
                return;
            }

            initDraggableModal();
        }
    };
}();

// On document ready
KTUtil.onDOMContentLoaded(function () {
    KTDocsModal.init();
});
