@aurigma/design-atoms/ItemHandlers/ItemHandlersCollection.js

Design Atoms is a part of Customer's Canvas SDK which allows for manipulating individual design elements through your code.

var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
import { Collection } from "@aurigma/design-atoms-model/Collection";
import { ArgumentNullException } from "@aurigma/design-atoms-model/Exception";
import { GroupItemHandler } from "./GroupItemHandler";
var ItemHandlersCollection = /** @class */ (function (_super) {
    __extends(ItemHandlersCollection, _super);
    function ItemHandlersCollection(layer) {
        var _this = _super.call(this) || this;
        _this._applyLayerAndCanvas = function (handler) {
            handler.layer = _this._layer;
            var cv = _this._layer.canvas;
            if (cv)
                handler.canvas = cv;
            if (handler instanceof GroupItemHandler) {
                handler.applyToItems(_this._applyLayerAndCanvas);
            }
        };
        if (!layer)
            throw new ArgumentNullException("layer");
        _this._layer = layer;
        return _this;
    }
    /**
    * Inserts handlers into the collection at the specified index.
    */
    ItemHandlersCollection.prototype.insertAt = function (index, item) {
        _super.prototype.insertAt.call(this, index, item);
        this._onHandlerAdded(item);
    };
    ItemHandlersCollection.prototype.move = function (oldIndex, newIndex) {
        return _super.prototype.move.call(this, oldIndex, newIndex);
    };
    ItemHandlersCollection.prototype.removeAt = function (index) {
        var item = _super.prototype.removeAt.call(this, index);
        if (item)
            this._onHandlerRemoved(item);
        return item;
    };
    ItemHandlersCollection.prototype.clear = function () {
        for (var i = 0; i < this.length; i++) {
            this.getItem(i).layer = null;
        }
        _super.prototype.clear.call(this);
    };
    ItemHandlersCollection.prototype._onHandlerAdded = function (handler) {
        this._applyLayerAndCanvas(handler);
    };
    ItemHandlersCollection.prototype._onHandlerRemoved = function (handler) {
        var canvas = this._layer.canvas;
        if (canvas && canvas.isItemHandlerSelected(handler))
            canvas.removeSelectedItemHandler(handler);
        handler.layer = null;
        //tell to handler is has been removed from canvas
        if (canvas)
            handler.canvas = null;
    };
    return ItemHandlersCollection;
}(Collection));
export { ItemHandlersCollection };
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