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dynamic-directive

3.0.0 • Public • Published

angular dynamic-directive

inject directives dynamically to pre-defined anchor points

Getting started

This module has been tested on angular 1.3.x.

To use this module in your application, you have to:

  • include the code in your main HTML file, after the angular.js inclusion
<script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.18/angular.js'></script>
<script src='dynamic-directive/dist/dynamic-directive.min.js'></script>
  • set op.dynamicDirective as a dependency of your angular module:
angular.module('your-app', ['op.dynamicDirective'])...

now let the fun begin !

angular.module('your-app', ['op.dynamicDirective'])
.directive('dir1', function() {
  return {
    restrict: 'E',
    template: '<div>Item X</div>'
  };
})
.directive('dir2', function() {
  return {
    restrict: 'E',
    template: '<div>Item Y</div>'
  };
})
.directive('addButton', ['dynamicDirectiveService', function(dynamicDirectiveService) {
  return {
    restrict: 'A',
    link: funtion(scope) {
      var dir2 = new dynamicDirectiveService.DynamicDirective(
        function(scope) {return true;},
        'dir2'
      );
      scope.add = function() {
        dynamicDirectiveService.addInjection('anchorPoint1', dir2);
      };
    }
  };
});
;

And the the HTML

<body ng-app='your-app'>
  <div class='items' dynamic-directive='anchorPoint1'>
    <dir1></dir1>
  </div>
  <div>
    <button add-button ng-click='add()'>Dynamically add the dir2 directive</button>
  </div>
</body>

Goals

The objective of this library is to bring modularity to an Angular application. Let's say you are developing some complex Rich Internet Application, and you want lots of modularity, because that's best practice. Now, your application got a user menu. You want third party modules to be able to add entries to that menu. You use the dynamic-directive directive, and give it an anchor name :

<div dynamic-directive='userMenu'>
  <div>Profile</div>
</div>

Now, a third party module can inject entries to your user menu, by creating an Angular directive (let's say: 'avatar'), create a DynamicDirective out of it and then inject it using the dynamicDirectiveService.

// third party directive
.directive('avatar', function() {
  return {
    restrict: 'E',
    template: '<div>avatar</div>',
    replace: true
  };
})
 
// directive injection can happen during the config phase,
// using the dynamicDirectiveService provider
.config(['dynamicDirectiveService', function(dynamicDirectiveService) {
  // here "avatar" is the name of the angular directive
  var dd = new dynamicDirectiveService.DynamicDirective(function() {return true;}, 'avatar');
  // here userMenu is the anchor name you gave as the dynamic-directive attribute value
  dynamicDirectiveService.addInjection('userMenu', dd);
}])
 
// directive injection can also happen during the run phase,
// so anywhere in your code, using the dynamicDirectiveService service
.run(['dynamicDirectiveService', function(dynamicDirectiveService) {
  var dd = new dynamicDirectiveService.DynamicDirective(function() {return true;}, 'avatar');
  dynamicDirectiveService.addInjection('userMenu', dd);
}])

API

DynamicDirective class

new DynamicDirective(filterFunction, angularDirectiveName, [options]);

filterFunction

Required. This function receives the scope as an argument. Example:

function(scope) {
  if (scope.isAdmin) {
    return true;
  } else {
    return false;
  }
}

The DynamicDirective contructor allows the boolean true as a shortcut for the filter function function() {return true;}.

The class is exposed as an angular service as well. You can inject it to your needs. Example:

.factory('myService', ['DynamicDirective', function(DynamicDirective) {
  var mydirective = new DynamicDirective(true, 'testing');
}])

angularDirectiveName

Required. Will be used as the tagName to create the HTML tag of your directive. Example:

"avatar"

options

Optional, it is an object like:

{
  attributes: [
    {
      name: 'addressbook',
      value: 'ab'
    },
    {
      name: 'contact',
      value: 'currentContact'
    }
  ],
  scope: {
    add: function(something) {}
  },
  priority: 10
}

Now let's detail available options.

**attributes - ** Those attributes will be added to the HTML element of your injected directive. This is really useful when using isolate scopes. Example:

[
  {
    name: 'addressbook',
    value: 'ab'
  },
  {
    name: 'contact',
    value: 'currentContact'
  }
]

**scope - ** The directive will be compiled against this object (scope). Example:

{
  addressbook: 'ab'
  contact: 'currentContact'
}

**priority - ** In case you inject several directives in the same anchor, you can control the order of those directives in the DOM. Default priority is 0. The highest priority will be put first in the DOM flow. Example:

10

dynamicDirectiveService service

DynamicDirective

dynamicDirectiveService.DynamicDirective

Give access to the DynamicDirective object.

addInjection(name, directive)

dynamicDirectiveService.addInjection(name, directive)

Add the injection of "directive" on anchor points named "name". Example:

var dd = new dynamicDirectiveService.DynamicDirective(function() { return true;}, 'directivename');
dynamicDirectiveService.addInjection('anchorPointName', dd);

getInjections(anchorName, scope)

Get the injection of anchor point "anchorName" with scope context "scope". This method is used by the dynamic-directive directive. Example:

var directivesToInject = dynamicDirectiveService.getInjection('anchorPointName', {});

resetInjections(anchorName)

Reset all injections of anchor point "anchorName". Example:

dynamicDirectiveService.resetInjections('anchorPointName');

dynamicDirectiveService provider

Allows third party modules to register the directives injection on angular configuration time.

DynamicDirective

dynamicDirectiveService.DynamicDirective

Give access to the DynamicDirective object.

addInjection(name, directive)

angular.config(function(dynamicDirectiveService) {
  var dd = new dynamicDirectiveService.DynamicDirective(function() { return true:}, 'thename');
  dynamicDirectiveService.addInjection(name, directive);
});

Developers ?

npm install

to install the development envronment. During development, use :

grunt watch

to have the linters, transpilers and tests, launched automatically on file change. Clone, patch, pull request, give love.

Release

grunt release

Readme

Keywords

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Install

npm i dynamic-directive

Weekly Downloads

4

Version

3.0.0

License

MIT

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