angular2/es6/prod/src/common/pipes/i18n_select_pipe.js

Angular 2 - a web framework for modern web apps

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import { CONST, isStringMap } from 'angular2/src/facade/lang';
import { StringMapWrapper } from 'angular2/src/facade/collection';
import { Injectable, Pipe } from 'angular2/core';
import { InvalidPipeArgumentException } from './invalid_pipe_argument_exception';
/**
 *
 *  Generic selector that displays the string that matches the current value.
 *
 *  ## Usage
 *
 *  expression | i18nSelect:mapping
 *
 *  where `mapping` is an object that indicates the text that should be displayed
 *  for different values of the provided `expression`.
 *
 *  ## Example
 *
 *  ```
 *  <div>
 *    {{ gender | i18nSelect: inviteMap }}
 *  </div>
 *
 *  class MyApp {
 *    gender: string = 'male';
 *    inviteMap: any = {
 *      'male': 'Invite her.',
 *      'female': 'Invite him.',
 *      'other': 'Invite them.'
 *    }
 *    ...
 *  }
 *  ```
 */
let I18nSelectPipe_1;
export let I18nSelectPipe = I18nSelectPipe_1 = class I18nSelectPipe {
    transform(value, mapping) {
        if (!isStringMap(mapping)) {
            throw new InvalidPipeArgumentException(I18nSelectPipe_1, mapping);
        }
        return StringMapWrapper.contains(mapping, value) ? mapping[value] : mapping['other'];
    }
};
I18nSelectPipe = I18nSelectPipe_1 = __decorate([
    CONST(),
    Pipe({ name: 'i18nSelect', pure: true }),
    Injectable(), 
    __metadata('design:paramtypes', [])
], I18nSelectPipe);