@felangel/react-bloc/dist/lib/src/bloc-builder.js

React Components that make it easy to implement the BLoC (Business Logic Component) design pattern. Built to be used with the bloc.js state management package.

"use strict";
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 __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var React = require("react");
var rxjs_1 = require("rxjs");
var BlocBuilder = /** @class */ (function (_super) {
    __extends(BlocBuilder, _super);
    function BlocBuilder(props) {
        var _this = _super.call(this, props) || this;
        _this.bloc = props.bloc;
        _this.builder = props.builder;
        _this.condition = props.condition || null;
        _this.previousState = _this.bloc.state;
        _this.subscription = rxjs_1.Subscription.EMPTY;
        _this.state = {
            blocState: _this.bloc.state
        };
        return _this;
    }
    BlocBuilder.prototype.subscribe = function () {
        var _this = this;
        this.subscription = this.bloc.listen(function (state) {
            var rebuild = _this.condition !== null ? _this.condition.call(_this, _this.previousState, state) : true;
            if (rebuild) {
                _this.setState({ blocState: state });
            }
            _this.previousState = state;
        });
    };
    BlocBuilder.prototype.unsubscribe = function () {
        this.subscription.unsubscribe();
    };
    BlocBuilder.prototype.componentDidUpdate = function (prevProps) {
        if (prevProps.bloc !== this.props.bloc) {
            this.unsubscribe();
            this.bloc = this.props.bloc;
            this.previousState = this.bloc.state;
            this.setState({ blocState: this.bloc.state });
            this.subscribe();
        }
    };
    BlocBuilder.prototype.componentDidMount = function () {
        this.subscribe();
    };
    BlocBuilder.prototype.componentWillUnmount = function () {
        this.unsubscribe();
    };
    BlocBuilder.prototype.render = function () {
        return this.builder(this.state.blocState);
    };
    return BlocBuilder;
}(React.Component));
exports.BlocBuilder = BlocBuilder;
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