slexx/laravel-blade-events

The event model for the blade template engine

v1.0.0 2019-02-07 22:34 UTC

Requires

• laravel/framework: ^5.7

MIT

• Alex

README

Usage

Basic usage

This package offers an event model for Blade template engine, adding one directive @ event.

index.blade.php:

@event('unique-event-name');

We can add the following lines to the app/Provides/EventServiceProvider.php file in the boot method for listen events:

use Slexx\LaravelBladeEvents\EventManager;

// ...

EventManager::listen('unique-event-name', function($event) {
    echo '<h1>Привет из подполья!</h1>';
});

Result will be:

<h1>Привет из подполья!</h1>

Break point

You can use several listeners and interrupt others at some point:

use Slexx\LaravelBladeEvents\EventManager;

// ...

EventManager::listen('unique-event-name', function($event) {
    echo 1;
});
EventManager::listen('unique-event-name', function($event) {
    $event->stop();
    echo 2;
});
EventManager::listen('unique-event-name', function($event) {
    echo 3;
});

Result:

12

Arguments

With the help of the @event directive, an unlimited number of arguments can be passed to the event listener, they can be accessed using the getArguments method of the Event class:

@event('unique-event-name', 'listener-first-argument', 'listener-two-argument');

EventManager::listen('unique-event-name', function($event) {
    dd($event->getArguments());
});

Priority

Event listeners can have specify priority:

EventManager::listen('unique-event-name', function($event) {
    echo 1;
});
EventManager::listen('unique-event-name', function($event) {
    $event->stop();
    echo 2;
});
EventManager::listen('unique-event-name', function($event) {
    echo 3;
});

// ...

// Disable all event listeners
EventManager::listen('unique-event-name', function($event) {
    $event->stop();
}, -100);

Event listeners

As an event listener, you can specify the name of the function:

EventManager::listen('some-event', 'someEventListener');

Or class name:

EventManager::listen('some-event', '\Foo\Bar\SomeEventListener@handle');
// Или так
EventManager::listen('some-event', ['\Foo\Bar\SomeEventListener', 'handle']);

Event names

You can listen to several events at once by separating their names with the symbol "|":

EventManager::listen('package-one::some-event|package-two::some-event', '\Foo\Bar\SomeEventListener@handle');

Or passed the list of names as an array:

EventManager::listen(['package-one::some-event', 'package-two::some-event'], '\Foo\Bar\SomeEventListener@handle');

Install

You can install this package via composer:

composer require slexx/laravel-blade-events

After updating composer, add the service provider to the providers array in config/app.php

Slexx\LaravelBladeEvents\EventsServiceProvider::class,