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karma-ng-html2js-define-preprocessor

1.1.0 • Public • Published

karma-ng-html2js-define-preprocessor

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Preprocessor for converting HTML files to AngularJS 1.x templates, wrapped in define calls for use with RequireJS/AMD projects.

Note: If you are looking for a general preprocessor that is not tied to Angular, check out karma-html2js-preprocessor.

Note: If you are using Angular 2.x, use karma-redirect-preprocessor.

Installation

The easiest way is to keep karma-ng-html2js-preprocessor as a devDependency in your package.json. Just run

$ npm install karma-ng-html2js-define-preprocessor --save-dev

Configuration

// karma.conf.js
module.exports = function(config) {
  config.set({
    preprocessors: {
      '**/*.html': ['ng-html2js-define']
    },
 
    files: [
      '*.js',
      '*.html',
      '*.html.ext',
      // if you wanna load template files in nested directories, you must use this
      '**/*.html'
    ],
 
    // if you have defined plugins explicitly, add karma-ng-html2js-define-preprocessor
    // plugins: [
    //     <your plugins>
    //     'karma-ng-html2js-define-preprocessor',
    // ]
 
    ngHtml2JsDefinePreprocessor: {
      // strip this from the file path
      stripPrefix: 'public/',
      stripSuffix: '.ext',
      // prepend this to the
      prependPrefix: 'served/',
 
      // or define a custom transform function
      // - cacheId returned is used to load template
      //   module(cacheId) will return template at filepath
      cacheIdFromPath: function(filepath) {
        // example strips 'public/' from anywhere in the path
        // module(app/templates/template.html) => app/public/templates/template.html
        var cacheId = filepath.strip('public/', '');
        return cacheId;
      },
 
      // - setting this option will create only a single module that contains templates
      //   from all the files, so you can load them all with module('foo')
      // - you may provide a function(htmlPath, originalPath) instead of a string
      //   if you'd like to generate modules dynamically
      //   htmlPath is a originalPath stripped and/or prepended
      //   with all provided suffixes and prefixes
      moduleName: 'foo'
    }
  });
};

Multiple module names

Use function if more than one module that contains templates is required.

// karma.conf.js
module.exports = function(config) {
  config.set({
    // ...
 
    ngHtml2JsDefinePreprocessor: {
      // ...
 
      moduleName: function (htmlPath, originalPath) {
        return htmlPath.split('/')[0];
      }
    }
  });
};

If only some of the templates should be placed in the modules, return '', null or undefined for those which should not.

// karma.conf.js
module.exports = function(config) {
  config.set({
    // ...
 
    ngHtml2JsDefinePreprocessor: {
      // ...
 
      moduleName: function (htmlPath, originalPath) {
        var module = htmlPath.split('/')[0];
        return module !== 'tpl' ? module : null;
      }
    }
  });
};

How does it work ?

This preprocessor converts HTML files into JS strings and generates Angular modules, wrapped in define calls. These modules, when loaded, puts these HTML files into the $templateCache and therefore Angular won't try to fetch them from the server.

For instance this template.html...

<div>something</div>

... will be served as template.html.js:

define(['angular'], function(angular) {
  angular.module('template.html', []).run(['$templateCache', function($templateCache) {
    $templateCache.put('template.html', '<div>something</div>');
  }]);
});

For more information on Karma see the homepage.

install

npm i karma-ng-html2js-define-preprocessor

Downloadsweekly downloads

12

version

1.1.0

license

MIT

homepage

github.com

repository

Gitgithub

last publish

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