"Table of contents" generator Laravel package

This package provides clickable Table Of Contents for your posts, news, articles etc based on h2-h6 html tags from input text.

Usage

Let's say you have some posts (from WYSIWYG editor or something) stored in your database which looks like this:

<h2>First h2 header</h2>
<p>Some text</p>    
<h3>First h3 header</h3>
<p>Some text</p>    
<h3>2nd h3 header</h3>
<p>Some text</p>    
<h4>First h4 header</h4>
<p>Some text</p>
<h4>2nd h4</h4>
<p>Some text</p>
<h2>Latest header</h2>

And you have some PostController with show() method which sends your Post model object data to your view.

public function show ($id)
{
    $post = Post::find($id);
    $header = $post->title;
    $body = $post->body;
    return view('post', compact('header', 'body');
}

Your 'post.blade.php' view looks stupid simple like this:

<div>
    <h1>{{$header}}</h1>
    {!! $body !!}
</div>

This is how you can use this package to generate "Table of contents" in controller:

public function show ($id, Contents $contents)
{
    $post = Post::find($id);
    $header = $post->title;
    $body = $contents->fromText($post->body)->getHandledText();
    $contents = $contents->getContents();
    return view('post', compact('header', 'body', 'contents');
}

Now you passed "contents" array where your header tags are stored. Also, as you can see you passed "handledText", which has id attributes inside header html tags.

Your view:

<div>
    <h1>{{$header}}</h1>
    @if(!empty($contents))
        @include('nikolay-oskin.contents.table', $contents)
    @endif
    {!! $post !!}
</div>

table.blade.php is the view with ul-li tags where you can add your css styles or make any other customization.

Result

Options

By default contents created for h2-h6 tags. You can set headers tags which have been included in 'Table of contents'.

Example:

public function show ($id, Contents $contents)
{
    $post = Post::find($id);
    $contents->fromText($post->body)->setTags(['h2', 'h3']);
    $body = $contents->getHandledText();
    $contents = $contents->getContents(); 
    return view('post', compact('body', 'contents');
    
    // Only h2 and h3 headers will be added to table of contents
}

You can also set text min-length number so if the text length is below this number then $contents array will be empty and $contents->getHandledText() returns original text.

Example:

public function show ($id, Contents $contents)
{
    $post = Post::find($id);
    $contents->fromText($post->body)->setTags(['h2', 'h3'])->setMinLength(5000);
    $body = $contents->getHandledText();
    $contents = $contents->getContents();
    return view('post', compact('body', 'contents');
    
    // Table of contents will not be shown for texts length less than 5000 chars.
}

Install

For Laravel 5.5+

composer require nikolay-oskin/contents

To copy views to your resource/views directory:

php artisan vendor:publish --provider="NikolayOskin\Contents\ContentsServiceProvider"

License