react-router-navigation-confirm/es/services/history-service.js

A collection of components to display a custom confirmation dialog on navigation. More flexible solution to prevent than default react-router 'Prompt'

var HistoryService = /** @class */ (function () {
    function HistoryService() {
        var _this = this;
        this.history = [];
        this.getHistoryFunction = function (location, action) {
            return {
                POP: function () { return (_this.isForward(location.key) ? "goForward" : "goBack"); },
                PUSH: function () { return "push"; },
                REPLACE: function () { return "replace"; }
            }[action]();
        };
    }
    HistoryService.prototype.add = function (key) {
        if (!key) {
            return;
        }
        if (this.history.indexOf(key) < 0) {
            this.history.push(key);
        }
        this.prev = key;
    };
    HistoryService.prototype.isForward = function (current) {
        return (!!current &&
            this.history.indexOf(current) > this.history.indexOf(this.prev));
    };
    return HistoryService;
}());
export { HistoryService };
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