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php-flarum/src/Http/Controller/ClientView.php
2016-02-25 22:09:39 -05:00

372 lines
8.4 KiB
PHP

<?php
/*
* This file is part of Flarum.
*
* (c) Toby Zerner <toby.zerner@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Flarum\Http\Controller;
use Flarum\Api\Client;
use Flarum\Asset\AssetManager;
use Flarum\Core\User;
use Flarum\Locale\JsCompiler;
use Illuminate\Contracts\Support\Renderable;
use Psr\Http\Message\ServerRequestInterface as Request;
/**
* This class represents a view which boots up Flarum's client.
*/
class ClientView implements Renderable
{
/**
* The user who is using the client.
*
* @var User
*/
protected $actor;
/**
* The title of the document, displayed in the <title> tag.
*
* @var null|string
*/
protected $title;
/**
* The SEO content of the page, displayed in <noscript> tags.
*
* @var string
*/
protected $content;
/**
* The path to the client layout view to display.
*
* @var string
*/
protected $layout;
/**
* An API response that should be preloaded into the page.
*
* @var null|array|object
*/
protected $document;
/**
* Other variables to preload into the page.
*
* @var array
*/
protected $variables = [];
/**
* An array of JS modules to import before booting the app.
*
* @var array
*/
protected $bootstrappers = ['locale'];
/**
* An array of strings to append to the page's <head>.
*
* @var array
*/
protected $headStrings = [];
/**
* An array of strings to prepend before the page's </body>.
*
* @var array
*/
protected $footStrings = [];
/**
* @var Client
*/
protected $api;
/**
* @var Request
*/
protected $request;
/**
* @var AssetManager
*/
protected $assets;
/**
* @var JsCompiler
*/
protected $localeJs;
/**
* @param Client $api
* @param Request $request
* @param User $actor
* @param AssetManager $assets
* @param string $layout
* @param JsCompiler $localeJs
*/
public function __construct(
Client $api,
Request $request,
User $actor,
AssetManager $assets,
$layout,
JsCompiler $localeJs = null
) {
$this->api = $api;
$this->request = $request;
$this->actor = $actor;
$this->assets = $assets;
$this->layout = $layout;
$this->localeJs = $localeJs;
$this->addHeadString('<link rel="stylesheet" href="//fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700,600">', 'font');
}
/**
* The title of the document, to be displayed in the <title> tag.
*
* @param null|string $title
*/
public function setTitle($title)
{
$this->title = $title;
}
/**
* Set the SEO content of the page, to be displayed in <noscript> tags.
*
* @param null|string $content
*/
public function setContent($content)
{
$this->content = $content;
}
/**
* Set the name of the client layout view to display.
*
* @param string $layout
*/
public function setLayout($layout)
{
$this->layout = $layout;
}
/**
* Add a string to be appended to the page's <head>.
*
* @param string $string
*/
public function addHeadString($string, $name = null)
{
if ($name) {
$this->headStrings[$name] = $string;
} else {
$this->headStrings[] = $string;
}
}
/**
* Add a string to be prepended before the page's </body>.
*
* @param string $string
*/
public function addFootString($string)
{
$this->footStrings[] = $string;
}
/**
* Set an API response to be preloaded into the page. This should be a
* JSON-API document.
*
* @param null|array|object $document
*/
public function setDocument($document)
{
$this->document = $document;
}
/**
* Set a variable to be preloaded into the app.
*
* @param string $name
* @param mixed $value
*/
public function setVariable($name, $value)
{
$this->variables[$name] = $value;
}
/**
* Add a JavaScript module to be imported before the app is booted.
*
* @param string $string
*/
public function addBootstrapper($string)
{
$this->bootstrappers[] = $string;
}
/**
* Get the view's asset manager.
*
* @return AssetManager
*/
public function getAssets()
{
return $this->assets;
}
/**
* Get the string contents of the view.
*
* @return string
*/
public function render()
{
$view = app('view')->file(__DIR__.'/../../../views/app.blade.php');
$forum = $this->getForumDocument();
$data = $this->getDataFromDocument($forum);
if ($this->actor->exists) {
$user = $this->getUserDocument();
$data = array_merge($data, $this->getDataFromDocument($user));
}
$view->app = [
'preload' => [
'data' => $data,
'session' => $this->getSession(),
'document' => $this->document
]
] + $this->variables;
$view->bootstrappers = $this->bootstrappers;
$noJs = array_get($this->request->getQueryParams(), 'nojs');
$view->title = ($this->title ? $this->title.' - ' : '').$forum->data->attributes->title;
$view->forum = $forum->data;
$view->layout = app('view')->file($this->layout, [
'forum' => $forum->data,
'content' => app('view')->file(__DIR__.'/../../../views/content.blade.php', [
'content' => $this->content,
'noJs' => $noJs,
'forum' => $forum->data
])
]);
$view->noJs = $noJs;
$view->styles = [$this->assets->getCssFile()];
$view->scripts = [$this->assets->getJsFile()];
if ($this->localeJs) {
$view->scripts[] = $this->localeJs->getFile();
}
$view->head = implode("\n", $this->headStrings);
$view->foot = implode("\n", $this->footStrings);
return $view->render();
}
/**
* Get the string contents of the view.
*
* @return string
*/
public function __toString()
{
return $this->render();
}
/**
* Get the result of an API request to show the forum.
*
* @return object
*/
protected function getForumDocument()
{
return json_decode($this->api->send('Flarum\Api\Controller\ShowForumController', $this->actor)->getBody());
}
/**
* Get the result of an API request to show the current user.
*
* @return object
*/
protected function getUserDocument()
{
// TODO: calling on the API here results in an extra query to get
// the user + their groups, when we already have this information on
// $this->actor. Can we simply run the CurrentUserSerializer
// manually? Or can we somehow inject this data into the ShowDiscussionController?
$document = json_decode($this->api->send(
'Flarum\Api\Controller\ShowUserController',
$this->actor,
['id' => $this->actor->id]
)->getBody());
return $document;
}
/**
* Get an array of data by merging the 'data' and 'included' keys of a
* JSON-API document.
*
* @param object $document
* @return array
*/
protected function getDataFromDocument($document)
{
$data[] = $document->data;
if (isset($document->included)) {
$data = array_merge($data, $document->included);
}
return $data;
}
/**
* Get information about the current session.
*
* @return array
*/
protected function getSession()
{
$session = $this->request->getAttribute('session');
return [
'userId' => $this->actor->id,
'csrfToken' => $session->get('csrf_token')
];
}
/**
* @return User
*/
public function getActor()
{
return $this->actor;
}
/**
* @return Request
*/
public function getRequest()
{
return $this->request;
}
}