express-toastr/index.js

A toastr.js middleware for ExpressJS 4

// Generated by CoffeeScript 1.8.0
(function() {
  var add, clear, entities, render, _, _defaultOptions, _escape, _toasts,
    __slice = [].slice;

  entities = require('entities');

  _ = require('lodash');

  _defaultOptions = {};

  _escape = function(string) {
    return entities.encodeHTML(string).replace("'", "\\'");
  };

  _toasts = {
    get: function(req) {
      return req.flash('_toasts');
    },
    set: function(req) {
      return req.flash('_toasts', req._toasts);
    }
  };

  add = function(req, type, message, title, options) {
    var _ref;
    if (title == null) {
      title = '';
    }
    if (options == null) {
      options = {};
    }
    if (((_ref = req.session.flash) != null ? _ref._toasts : void 0) != null) {
      req.session.flash._toasts = [];
    }
    req._toasts.push({
      type: type,
      message: message,
      title: title,
      options: options
    });
    return _toasts.set(req);
  };

  clear = function(req) {
    req._toasts = [];
    return _toasts.set(req);
  };

  render = function(req) {
    var args, options, output, previousOptions, toast, toasts, _i, _len;
    toasts = _toasts.get(req);
    if (!toasts.length) {
      return;
    }
    output = '<script type="text/javascript">';
    previousOptions = {};
    for (_i = 0, _len = toasts.length; _i < _len; _i++) {
      toast = toasts[_i];
      options = _.defaults(toast.options, _defaultOptions);
      if (!_.isEqual(previousOptions, options)) {
        output += "toastr.options=" + (JSON.stringify(options)) + ";";
      }
      previousOptions = options;
      args = [];
      args.push(_escape(toast.message));
      if (toast.title) {
        args.push(_escape(toast.title));
      }
      args = args.map(function(arg) {
        return "'" + arg + "'";
      });
      output += "toastr." + toast.type + "(" + (args.join(',')) + ");";
    }
    output += '</script>';
    return output;
  };

  module.exports = function(options) {
    if (options == null) {
      options = {};
    }
    _defaultOptions = options;
    return function(req, res, next) {
      req._toasts = [];
      req.toastr = {
        add: add.bind(null, req),
        info: function() {
          return this.add.apply(this, ['info'].concat(__slice.call(arguments)));
        },
        warning: function() {
          return this.add.apply(this, ['warning'].concat(__slice.call(arguments)));
        },
        error: function() {
          return this.add.apply(this, ['error'].concat(__slice.call(arguments)));
        },
        success: function() {
          return this.add.apply(this, ['success'].concat(__slice.call(arguments)));
        },
        clear: clear.bind(null, req),
        render: render.bind(null, req)
      };
      return next();
    };
  };

}).call(this);

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