@progress/kendo-angular-dropdowns/dist/npm/selection.service.js

Dropdowns Package for Angular 2

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var core_1 = require("@angular/core");
var util_1 = require("./util");
/**
 * @hidden
 */
var SelectionService = (function () {
    function SelectionService() {
        this.onSelect = new core_1.EventEmitter();
        this.onChange = new core_1.EventEmitter();
        this.onFocus = new core_1.EventEmitter();
        this.selectedIndices = [];
    }
    SelectionService.prototype.isSelected = function (index) {
        return util_1.isPresent(this.selectedIndices.find(function (current) { return current === index; }));
    };
    SelectionService.prototype.isFocused = function (index) {
        return index === this.focused;
    };
    SelectionService.prototype.focus = function (index) {
        if (this.isFocused(index)) {
            return;
        }
        this.focused = index;
        this.onFocus.emit(index);
    };
    SelectionService.prototype.select = function (index) {
        if (this.isSelected(index)) {
            return;
        }
        this.selectedIndices = [index];
        this.focused = index;
        this.onSelect.emit({
            indices: this.selectedIndices.slice()
        });
    };
    SelectionService.prototype.add = function (index) {
        if (this.isSelected(index)) {
            return;
        }
        this.selectedIndices.push(index);
        this.focused = index;
        this.onChange.emit({
            added: index,
            indices: this.selectedIndices.slice()
        });
    };
    SelectionService.prototype.unselect = function (index) {
        if (!this.isSelected(index)) {
            return;
        }
        var position = this.selectedIndices.indexOf(index);
        this.selectedIndices.splice(position, 1);
        this.focused = index;
        this.onChange.emit({
            indices: this.selectedIndices.slice(),
            removed: index
        });
    };
    SelectionService.prototype.change = function (index) {
        this.selectedIndices = [index];
        this.focused = index;
        this.onChange.emit({
            indices: this.selectedIndices.slice()
        });
    };
    SelectionService.prototype.resetSelection = function (index) {
        this.selectedIndices = index instanceof Array ? index : [index];
        this.focused = this.selectedIndices[this.selectedIndices.length - 1];
    };
    Object.defineProperty(SelectionService.prototype, "selected", {
        get: function () {
            return this.selectedIndices.slice();
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SelectionService.prototype, "focused", {
        get: function () {
            return this.focusedIndex;
        },
        set: function (index) {
            if (this.focusedIndex !== index) {
                this.focusedIndex = index;
                this.onFocus.emit(index);
            }
        },
        enumerable: true,
        configurable: true
    });
    return SelectionService;
}());
SelectionService.decorators = [
    { type: core_1.Injectable },
];
/** @nocollapse */
SelectionService.ctorParameters = function () { return []; };
exports.SelectionService = SelectionService;