<?php
namespace Illuminate\View;
use Illuminate\View\Engines\PhpEngine;
use Illuminate\Support\ServiceProvider;
use Illuminate\View\Engines\CompilerEngine;
use Illuminate\View\Engines\EngineResolver;
use Illuminate\View\Compilers\BladeCompiler;
// cool namespace
class ViewServiceProvider extends ServiceProvider
{// ViewServiceProvider extends something
/**
* Register the service provider.
*
* @return void
*/
public function register()
{// a register group function
$this->registerEngineResolver();// engine resolver
$this->registerViewFinder();//view finder
$this->registerFactory();// factory
}
/**
* Register the engine resolver instance.
*
* @return void
*/
public function registerEngineResolver()
{// register the engine resolver instance
$this->app->singleton('view.engine.resolver', function () {
$resolver = new EngineResolver;
// Next we will register the various engines with the resolver so that the
// environment can resolve the engines it needs for various views based
// on the extension of view files. We call a method for each engines.
foreach (['php', 'blade'] as $engine) {
$this->{'register'.ucfirst($engine).'Engine'}($resolver);
}// foreach this array
return $resolver;// a anonymous function
});// a wrap function ,
}
/**
* Register the PHP engine implementation.
*
* @param \Illuminate\View\Engines\EngineResolver $resolver
* @return void
*/
public function registerPhpEngine($resolver)
{
$resolver->register('php', function () {
return new PhpEngine;
});
}//use resolver register ,type and instance
/**
* Register the Blade engine implementation.
*
* @param \Illuminate\View\Engines\EngineResolver $resolver
* @return void
*/
public function registerBladeEngine($resolver)
{//register the blade engine implementation
$app = $this->app;// set app
// The Compiler engine requires an instance of the CompilerInterface, which in
// this case will be the Blade compiler, so we'll first create the compiler
// instance to pass into the engine so it can compile the views properly.
$app->singleton('blade.compiler', function ($app) {
$cache = $app['config']['view.compiled'];
return new BladeCompiler($app['files'], $cache);
});//The compiler engine require an instance of the compilerinterface,which in
//this case will be the blade compiler, so we'll first create the compiler
// instance to pass into the engine so it can compile the views properly.
$resolver->register('blade', function () use ($app) {
return new CompilerEngine($app['blade.compiler']);
});// use this register to register blade
}
/**
* Register the view finder implementation.
*
* @return void
*/
public function registerViewFinder()
{
$this->app->bind('view.finder', function ($app) {
$paths = $app['config']['view.paths'];
return new FileViewFinder($app['files'], $paths);
});// bind something i hate this type to trans parameters
}//register the view finder implementation
/**
* Register the view environment.
*
* @return void
*/
public function registerFactory()
{//register the view environment
// like register Factory
$this->app->singleton('view', function ($app) {
// Next we need to grab the engine resolver instance that will be used by the
// environment. The resolver will be used by an environment to get each of
// the various engine implementations such as plain PHP or Blade engine.
$resolver = $app['view.engine.resolver'];
// Next we need to grab
// get the engine resolver
$finder = $app['view.finder'];// get finder
$env = new Factory($resolver, $finder, $app['events']);// instance factory
// We will also set the container instance on this view environment since the
// view composers may be classes registered in the container, which allows
// for great testable, flexible composers for the application developer.
$env->setContainer($app);//set container
$env->share('app', $app);// share something
// we will also set the container instance on this view environment since the view
// composers may be classes registered in the container, which allows
// for great testable, flexible composers for the application developer.
// a good composers
return $env;
});
}
}
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