add nova

nova/src/Fields/Stack.php

@@ -0,0 +1,131 @@
+<?php
+
+namespace Laravel\Nova\Fields;
+
+use Laravel\Nova\Http\Requests\NovaRequest;
+
+/**
+ * @method static static make(string $name, string|array|null $attribute = null, array $lines = [])
+ */
+class Stack extends Field
+{
+    /**
+     * The field's component.
+     *
+     * @var string
+     */
+    public $component = 'stack-field';
+
+    /**
+     * Indicates if the element should be shown on the creation view.
+     *
+     * @var (callable(\Laravel\Nova\Http\Requests\NovaRequest):(bool))|bool
+     */
+    public $showOnCreation = false;
+
+    /**
+     * Indicates if the element should be shown on the update view.
+     *
+     * @var (callable(\Laravel\Nova\Http\Requests\NovaRequest, mixed):(bool))|bool
+     */
+    public $showOnUpdate = false;
+
+    /**
+     * The contents of the Stack field.
+     *
+     * @var array|\Illuminate\Support\Collection
+     */
+    public $lines;
+
+    /**
+     * Create a new Stack field.
+     *
+     * @param  string  $name
+     * @param  string|array<int, class-string<\Laravel\Nova\Fields\Field>|callable>|null  $attribute
+     * @param  array<int, class-string<\Laravel\Nova\Fields\Field>|callable>  $lines
+     * @return void
+     */
+    public function __construct($name, $attribute = null, $lines = [])
+    {
+        if (is_array($attribute)) {
+            $lines = $attribute;
+            $attribute = null;
+        }
+
+        parent::__construct($name, $attribute);
+
+        $this->lines = $lines;
+    }
+
+    /**
+     * Resolve the field's value for display.
+     *
+     * @param  mixed  $resource
+     * @param  string|null  $attribute
+     * @return void
+     */
+    public function resolveForDisplay($resource, $attribute = null)
+    {
+        $this->prepareLines($resource, $attribute);
+    }
+
+    /**
+     * Prepare the stack for JSON serialization.
+     *
+     * @return array<string, mixed>
+     */
+    public function jsonSerialize(): array
+    {
+        return array_merge(parent::jsonSerialize(), [
+            'lines' => $this->lines->all(),
+        ]);
+    }
+
+    /**
+     * Prepare each line for serialization.
+     *
+     * @param  mixed  $resource
+     * @param  string  $attribute
+     * @return void
+     */
+    public function prepareLines($resource, $attribute = null)
+    {
+        $this->ensureLinesAreResolveable();
+
+        $request = app(NovaRequest::class);
+
+        $this->lines = $this->lines->filter(function ($field) use ($request, $resource) {
+            if ($request->isResourceIndexRequest()) {
+                return $field->isShownOnIndex($request, $resource);
+            }
+
+            return $field->isShownOnDetail($request, $resource);
+        })->values()->each->resolveForDisplay($resource, $attribute);
+    }
+
+    /**
+     * Get field lines.
+     *
+     * @return \Illuminate\Support\Collection
+     */
+    public function fields()
+    {
+        return collect($this->lines)->whereInstanceOf(Field::class);
+    }
+
+    /**
+     * Ensure that each line for the field is resolvable.
+     *
+     * @return void
+     */
+    protected function ensureLinesAreResolveable()
+    {
+        $this->lines = collect($this->lines)->map(function ($line) {
+            if (is_callable($line)) {
+                return Line::make('Anonymous', $line);
+            }
+
+            return $line;
+        });
+    }
+}