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Angular Customizable Template


Tools to define angular directives using customizable templates.


See the demo application to learn what the directives of this module provide. The demo shows how you can define a directive based on a HTML template and include well defined insertion points that will allow the clients customize some parts of the directive using its own HTML.

Some explanations

When you define a new directive based on a HTML template it is easy to define some customizable parts using an isolated scope with properties linked to the directive attributes.

    restrict: 'EA',
    templateUrl: 'directives/product-list.html',
    scope: {
        products: '=',
        header: '@',
        footer: '@'

Then you can use the directive in your code customizing some texts of the directive template.

<product-list products="app.cams" header="Cam Devices" footer="The most popular: {{app.cams[3].name}}">

But what if your client wants to replace the header or footer of the directive using HTML instead of just simple text?

The solution that would be a very bad idea

A simple solution would be to let the clients to give the path of a custom HTML file in an attribute.

    restrict: 'EA',
    templateUrl: 'directives/product-list.html',
    scope: {
        products: '=',
        header: '@',
        footer: '@',

        // These attributes can be used to give the path of HTML templates
        customHeader: '@',
        customFooter: '@',

The client could write a template file with the HTML of the customization and give the path of the file to the directive.

<product-list products="app.cams" custom-header="cam-header.html">

The template of the directive could be made customizable:

<ng-include src="customHeader" ng-if="customHeader"></ng-include>

What's the problem?

The "cam-header.html" file would be compiled and linked inside the template of the "product-list" directive.

The code of "cam-header.html" it is supposed to be written by a client of the "product-list" directive so the client expect to use the scope of its controller also in the code of "cam-header.html".

But as the "cam-header.html" code is included directly by the "product-list.html" template directive, the scope of the customization of the client would be the isolated scope of the directive.

So the client of the directive would be force to use $scope.$parent in its own code, in the "cam-header.html" file that it is not part of the directive. That would really be a code smell and a very bad idea. How can you know how many parents to traverse from your own code to reach your own scope controller, when even a simple "ng-if" creates new nested scopes?

The solution of the Angular Customizable Templates

The directives of this module allow to define directives that can have customizable templates.

You can define in the template of your own directives what parts can be customized with full HTML. The clients of the directive will be able to optionally customize those parts using HTML that have access to the scope of its controllers.

<product-list products="app.ropes">
        This is the template HTML that customize the "footer" part of
        the "product-list" directive.
    <div ct-template-part="footer">
      <p class="panel-title"><strong>This is a template that customize the footer</strong></p>
        <li>You can change the whole HTML of the footer.</li>
        <li>You can access the scope where this custom footer is defined.</li>
        <li><strong>The most popular rope: </strong><i>{{app.ropes[2].name}}</i></app.ropes></li>

The "product-list" directive of the demo allows a client declare several "ct-template-part" directives with the HTML that will replace the customizable parts of the directive. This "product-list" demo directive provides two customizable parts identified by "header" and "footer".

In the code above you can see how to define a the HTML that will customize the "footer" part of the directive. The HTML written by the client will have access to the same scope that the "product-list" directive - the scope expected by the client - and not the isolated scope of the "product-list" directive.

You can see the demo application to learn how the "product-list" directive allows the customization of some parts using the "ct-template-part" directive.


Tools to define angular directives using customizable templates.




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