Viewing file:  Response.php (3.02 KB) -rw-r--r--
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<?php
namespace Livewire;
use Livewire\HydrationMiddleware\AddAttributesToRootTagOfHtml;
class Response
{
public $request;
public $fingerprint;
public $effects;
public $memo;
public static function fromRequest($request)
{
return new static($request);
}
public function __construct($request)
{
$this->request = $request;
$this->fingerprint = $request->fingerprint;
$this->memo = $request->memo;
$this->effects = [];
}
public function id() { return $this->fingerprint['id']; }
public function embedThyselfInHtml()
{
if (! $html = $this->effects['html'] ?? null) return;
$this->effects['html'] = (new AddAttributesToRootTagOfHtml)($html, [
'initial-data' => $this->toArrayWithoutHtml(),
]);
}
public function embedIdInHtml()
{
if (! $html = $this->effects['html'] ?? null) return;
$this->effects['html'] = (new AddAttributesToRootTagOfHtml)($html, [
'id' => $this->fingerprint['id'],
]);
}
public function html()
{
return $this->effects['html'] ?? null;
}
public function toArrayWithoutHtml()
{
return [
'fingerprint' => $this->fingerprint,
'effects' => array_diff_key($this->effects, ['html' => null]),
'serverMemo' => $this->memo,
];
}
public function toInitialResponse()
{
return tap($this)->embedIdInHtml();
}
public function toSubsequentResponse()
{
$this->embedIdInHtml();
$requestMemo = $this->request->memo;
$responseMemo = $this->memo;
$dirtyMemo = [];
// Only send along the memos that have changed to not bloat the payload.
foreach ($responseMemo as $key => $newValue) {
// If the memo key is not in the request, add it.
if (! isset($requestMemo[$key])) {
$dirtyMemo[$key] = $newValue;
continue;
}
// If the memo values are the same, skip adding them.
if ($requestMemo[$key] === $newValue) continue;
$dirtyMemo[$key] = $newValue;
}
// If 'data' is present in the response memo, diff it one level deep.
if (isset($dirtyMemo['data']) && isset($requestMemo['data'])) {
foreach ($dirtyMemo['data'] as $key => $value) {
if (! isset($requestMemo['data'][$key])) continue;
if ($value === $requestMemo['data'][$key]) {
unset($dirtyMemo['data'][$key]);
}
}
}
// Make sure any data marked as "dirty" is present in the resulting data payload.
foreach (data_get($this, 'effects.dirty', []) as $property) {
$property = head(explode('.', $property));
data_set($dirtyMemo, 'data.'.$property, $responseMemo['data'][$property] ?? null);
}
return [
'effects' => $this->effects,
'serverMemo' => $dirtyMemo,
];
}
}
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