Get Cordova ready for grunt and coffeescript

Cordova, grunt and coffee

You may reference to below if you deside to work with coffee instead of Javascript in Cordova project.

Prepare Cordova helloworld Project

This guide is based on Hello World project which is generated by the following commands.

 
$ cordova create hello com.example.hello HelloWorld
$ cd hello
$ cordova platform add android

Installinstall coffee command

$ npm install -g coffee

Install grunt-contrib-coffee grunt plugin

$ npm install grunt-contrib-coffee --save-dev

Generate working tree

Transformwww/js/index.jsTosrc/www/js/index.coffeeIn Example project. Because, we are gotta remote all the Javascript file in folderwww/js/.

Filesrc/www/js/index.coffee:

 
app = 
    initialize: () -> this.bindEvents()

    bindEvents: () ->
        document.addEventListener ‘deviceready‘, this.onDeviceReady, false

    onDeviceReady: () ->
        app.receivedEvent ‘deviceready‘

    receivedEvent: (id) ->
        parentElement = document.getElementById id
        listeningElement = parentElement.querySelector ‘.listening‘
        receivedElement = parentElement.querySelector ‘.received‘

        listeningElement.setAttribute ‘style‘, ‘display:none;‘
        receivedElement.setAttribute ‘style‘, ‘display:block;‘

        console.log ‘Received Event: ‘ + id

Update gruntfile. Coffee

 
module.exports = (grunt) ->
    grunt.initConfig
        pkg: grunt.file.readJSON ‘package.json‘
        coffee:
            options:
                bare: true
            build:
                expand: true
                cwd: ‘src/www‘
                src: [‘**/*.coffee‘]
                dest: ‘www‘
                ext: ‘.js‘
                extDot: ‘first‘

    grunt.loadNpmTasks ‘grunt-contrib-coffee‘

Now we have

• src/Folder as coffee scripts location
• src/www/js/index.coffeeFile that tranformed fromwww/js/index.jsWhich is removed already.
• Gruntfile.coffeeBuild with coffee tasks
• package.jsonWhich is updated with Modulegrunt-contrib-coffee

Testing

$ grunt coffee$ cordova install android