(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/common'), require('@angular/forms'), require('rxjs')) :
    typeof define === 'function' && define.amd ? define('@nk-spirit/nk-ngx-bootstrap/sortable', ['exports', '@angular/core', '@angular/common', '@angular/forms', 'rxjs'], factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global['nk-spirit'] = global['nk-spirit'] || {}, global['nk-spirit']['nk-ngx-bootstrap'] = global['nk-spirit']['nk-ngx-bootstrap'] || {}, global['nk-spirit']['nk-ngx-bootstrap'].sortable = {}), global.ng.core, global.ng.common, global.ng.forms, global.rxjs));
}(this, (function (exports, core, common, forms, rxjs) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
    ***************************************************************************** */
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    var DraggableItemService = /** @class */ (function () {
        function DraggableItemService() {
            this.onCapture = new rxjs.Subject();
        }
        DraggableItemService.prototype.dragStart = function (item) {
            this.draggableItem = item;
        };
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            return this.draggableItem;
        };
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                this.draggableItem.lastZoneIndex = this.draggableItem.overZoneIndex;
                this.draggableItem.overZoneIndex = overZoneIndex;
                this.onCapture.next(this.draggableItem);
                this.draggableItem = Object.assign({}, this.draggableItem, {
                    overZoneIndex: overZoneIndex,
                    i: newIndex
                });
            }
            return this.draggableItem;
        };
        DraggableItemService.prototype.onCaptureItem = function () {
            return this.onCapture;
        };
        return DraggableItemService;
    }());
    DraggableItemService.decorators = [
        { type: core.Injectable }
    ];

    var SortableComponent = /** @class */ (function () {
        function SortableComponent(transfer) {
            var _this = this;
            /** class name for items wrapper */
            this.wrapperClass = '';
            /** style object for items wrapper */
            this.wrapperStyle = {};
            /** class name for item */
            this.itemClass = '';
            /** style object for item */
            this.itemStyle = {};
            /** class name for active item */
            this.itemActiveClass = '';
            /** style object for active item */
            this.itemActiveStyle = {};
            /** class name for placeholder */
            this.placeholderClass = '';
            /** style object for placeholder */
            this.placeholderStyle = {};
            /** placeholder item which will be shown if collection is empty */
            this.placeholderItem = '';
            /** fired on array change (reordering, insert, remove), same as <code>ngModelChange</code>.
             *  Returns new items collection as a payload.
             */
            this.onChange = new core.EventEmitter();
            this.showPlaceholder = false;
            this.activeItem = -1;
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            this.onTouched = Function.prototype;
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            this.onChanged = Function.prototype;
            this._items = [];
            this.transfer = transfer;
            this.currentZoneIndex = SortableComponent.globalZoneIndex++;
            this.transfer
                .onCaptureItem()
                .subscribe(function (item) { return _this.onDrop(item); });
        }
        Object.defineProperty(SortableComponent.prototype, "items", {
            get: function () {
                return this._items;
            },
            set: function (value) {
                this._items = value;
                var out = this.items.map(function (x) { return x.initData; });
                this.onChanged(out);
                this.onChange.emit(out);
            },
            enumerable: false,
            configurable: true
        });
        SortableComponent.prototype.onItemDragstart = function (event, item, i) {
            this.initDragstartEvent(event);
            this.onTouched();
            this.transfer.dragStart({
                event: event,
                item: item,
                i: i,
                initialIndex: i,
                lastZoneIndex: this.currentZoneIndex,
                overZoneIndex: this.currentZoneIndex
            });
        };
        SortableComponent.prototype.onItemDragover = function (event, i) {
            if (!this.transfer.getItem()) {
                return;
            }
            event.preventDefault();
            var dragItem = this.transfer.captureItem(this.currentZoneIndex, this.items.length);
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            var newArray = [];
            if (!dragItem) {
                return;
            }
            if (!this.items.length) {
                newArray = [dragItem.item];
            }
            else if (dragItem.i > i) {
                newArray = __spread(this.items.slice(0, i), [
                    dragItem.item
                ], this.items.slice(i, dragItem.i), this.items.slice(dragItem.i + 1));
            }
            else {
                // this.draggedItem.i < i
                newArray = __spread(this.items.slice(0, dragItem.i), this.items.slice(dragItem.i + 1, i + 1), [
                    dragItem.item
                ], this.items.slice(i + 1));
            }
            this.items = newArray;
            dragItem.i = i;
            this.activeItem = i;
            this.updatePlaceholderState();
        };
        SortableComponent.prototype.cancelEvent = function (event) {
            if (!this.transfer.getItem() || !event) {
                return;
            }
            event.preventDefault();
        };
        SortableComponent.prototype.onDrop = function (item) {
            if (item &&
                item.overZoneIndex !== this.currentZoneIndex &&
                item.lastZoneIndex === this.currentZoneIndex) {
                this.items = this.items.filter(function (x, i) { return i !== item.i; });
                this.updatePlaceholderState();
            }
            this.resetActiveItem();
        };
        SortableComponent.prototype.resetActiveItem = function (event) {
            this.cancelEvent(event);
            this.activeItem = -1;
        };
        SortableComponent.prototype.registerOnChange = function (callback) {
            this.onChanged = callback;
        };
        SortableComponent.prototype.registerOnTouched = function (callback) {
            this.onTouched = callback;
        };
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        SortableComponent.prototype.writeValue = function (value) {
            var _this = this;
            if (value) {
                // eslint-disable-next-line @typescript-eslint/no-explicit-any
                this.items = value.map(function (x, i) { return ({
                    id: i,
                    initData: x,
                    value: _this.fieldName ? x[_this.fieldName] : x
                }); });
            }
            else {
                this.items = [];
            }
            this.updatePlaceholderState();
        };
        SortableComponent.prototype.updatePlaceholderState = function () {
            this.showPlaceholder = !this._items.length;
        };
        SortableComponent.prototype.getItemStyle = function (isActive) {
            return isActive
                ? Object.assign({}, this.itemStyle, this.itemActiveStyle)
                : this.itemStyle;
        };
        SortableComponent.prototype.initDragstartEvent = function (event) {
            var _a;
            // it is necessary for mozilla
            // data type should be 'Text' instead of 'text/plain' to keep compatibility
            // with IE
            (_a = event.dataTransfer) === null || _a === void 0 ? void 0 : _a.setData('Text', 'placeholder');
        };
        return SortableComponent;
    }());
    SortableComponent.globalZoneIndex = 0;
    SortableComponent.decorators = [
        { type: core.Component, args: [{
                    selector: 'bs-sortable',
                    exportAs: 'bs-sortable',
                    template: "\n<div\n    [ngClass]=\"wrapperClass\"\n    [ngStyle]=\"wrapperStyle\"\n    (dragover)=\"cancelEvent($event)\"\n    (dragenter)=\"cancelEvent($event)\"\n    (drop)=\"resetActiveItem($event)\"\n    (mouseleave)=\"resetActiveItem($event)\">\n  <div\n        *ngIf=\"showPlaceholder\"\n        [ngClass]=\"placeholderClass\"\n        [ngStyle]=\"placeholderStyle\"\n        (dragover)=\"onItemDragover($event, 0)\"\n        (dragenter)=\"cancelEvent($event)\"\n    >{{placeholderItem}}</div>\n    <div\n        *ngFor=\"let item of items; let i=index;\"\n        [ngClass]=\"[ itemClass, i === activeItem ? itemActiveClass : '' ]\"\n        [ngStyle]=\"getItemStyle(i === activeItem)\"\n        draggable=\"true\"\n        (dragstart)=\"onItemDragstart($event, item, i)\"\n        (dragend)=\"resetActiveItem($event)\"\n        (dragover)=\"onItemDragover($event, i)\"\n        (dragenter)=\"cancelEvent($event)\"\n        aria-dropeffect=\"move\"\n        [attr.aria-grabbed]=\"i === activeItem\"\n    ><ng-template [ngTemplateOutlet]=\"itemTemplate || defItemTemplate\"\n  [ngTemplateOutletContext]=\"{item:item, index: i}\"></ng-template></div>\n</div>\n\n<ng-template #defItemTemplate let-item=\"item\">{{item.value}}</ng-template>\n",
                    providers: [
                        {
                            provide: forms.NG_VALUE_ACCESSOR,
                            useExisting: core.forwardRef(function () { return SortableComponent; }),
                            multi: true
                        }
                    ]
                },] }
    ];
    SortableComponent.ctorParameters = function () { return [
        { type: DraggableItemService }
    ]; };
    SortableComponent.propDecorators = {
        fieldName: [{ type: core.Input }],
        wrapperClass: [{ type: core.Input }],
        wrapperStyle: [{ type: core.Input }],
        itemClass: [{ type: core.Input }],
        itemStyle: [{ type: core.Input }],
        itemActiveClass: [{ type: core.Input }],
        itemActiveStyle: [{ type: core.Input }],
        placeholderClass: [{ type: core.Input }],
        placeholderStyle: [{ type: core.Input }],
        placeholderItem: [{ type: core.Input }],
        itemTemplate: [{ type: core.Input }],
        onChange: [{ type: core.Output }]
    };

    var SortableModule = /** @class */ (function () {
        function SortableModule() {
        }
        SortableModule.forRoot = function () {
            return { ngModule: SortableModule, providers: [DraggableItemService] };
        };
        return SortableModule;
    }());
    SortableModule.decorators = [
        { type: core.NgModule, args: [{
                    declarations: [SortableComponent],
                    imports: [common.CommonModule],
                    exports: [SortableComponent]
                },] }
    ];

    /**
     * Generated bundle index. Do not edit.
     */

    exports.DraggableItemService = DraggableItemService;
    exports.SortableComponent = SortableComponent;
    exports.SortableModule = SortableModule;

    Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=nk-spirit-nk-ngx-bootstrap-sortable.umd.js.map
