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<?php namespace Botble\Base\Supports; use BadMethodCallException; use Botble\Base\Traits\Componentable; use DateTime; use Illuminate\Contracts\Routing\UrlGenerator; use Illuminate\Contracts\Session\Session; use Illuminate\Contracts\View\Factory; use Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull; use Illuminate\Http\Request; use Illuminate\Support\Arr; use Illuminate\Support\Collection; use Illuminate\Support\HtmlString; use Illuminate\Support\Traits\Macroable; class FormBuilder { use Macroable, Componentable { Macroable::__call as macroCall; Componentable::__call as componentCall; } protected HtmlBuilder $html; protected UrlGenerator|null $url; protected Factory $view; protected string $csrfToken; protected bool $considerRequest = false; protected Session $session; protected mixed $model; protected array $labels = []; protected Request $request; protected array $reserved = ['method', 'url', 'route', 'action', 'files']; protected array $spoofedMethods = ['DELETE', 'PATCH', 'PUT']; protected array $skipValueTypes = ['file', 'password', 'checkbox', 'radio']; protected string|null $type = null; protected array $payload; public function __construct(HtmlBuilder $html, UrlGenerator $url, Factory $view, $csrfToken, Request $request = null) { $this->url = $url; $this->html = $html; $this->view = $view; $this->csrfToken = $csrfToken; $this->request = $request; } public function open(array $options = []): HtmlString { $method = Arr::get($options, 'method', 'post'); // We need to extract the proper method from the attributes. If the method is // something other than GET or POST we'll use POST since we will spoof the // actual method since forms don't support the reserved methods in HTML. $attributes['method'] = $this->getMethod($method); $attributes['action'] = $this->getAction($options); $attributes['accept-charset'] = 'UTF-8'; // If the method is PUT, PATCH or DELETE we will need to add a spoofer hidden // field that will instruct the Symfony request to pretend the method is a // different method than it actually is, for convenience from the forms. $append = $this->getAppendage($method); if (isset($options['files']) && $options['files']) { $options['enctype'] = 'multipart/form-data'; } // Finally we're ready to create the final form HTML field. We will attribute // format the array of attributes. We will also add on the appendage which // is used to spoof requests for this PUT, PATCH, etc. methods on forms. $attributes = array_merge( $attributes, Arr::except($options, $this->reserved) ); // Finally, we will concatenate all the attributes into a single string, so // we can build out the final form open statement. We'll also append on an // extra value for the hidden _method field if it's needed for the form. $attributes = $this->html->attributes($attributes); return $this->toHtmlString('<form' . $attributes . '>' . $append); } public function model($model, array $options = []): HtmlString { $this->model = $model; return $this->open($options); } public function setModel($model): void { $this->model = $model; } public function getModel() { return $this->model; } public function close(): HtmlString { $this->labels = []; $this->model = null; return $this->toHtmlString('</form>'); } public function token(): HtmlString|string { $token = ! empty($this->csrfToken) ? $this->csrfToken : $this->session->token(); return $this->hidden('_token', $token); } public function label($name, $value = null, $options = [], $escape_html = true): HtmlString { $this->labels[] = $name; $options = $this->html->attributes($options); $value = $this->formatLabel($name, $value); if ($escape_html) { $value = $this->html->entities($value); } return $this->toHtmlString('<label for="' . $name . '"' . $options . '>' . $value . '</label>'); } protected function formatLabel($name, $value): string { return $value ?: ucwords(str_replace('_', ' ', $name)); } public function input($type, $name, $value = null, $options = []): HtmlString { $this->type = $type; if (! isset($options['name'])) { $options['name'] = $name; } // We will get the appropriate value for the given field. We will look for the // value in the session for the value in the old input data then we'll look // in the model instance if one is set. Otherwise we will just use empty. $id = $this->getIdAttribute($name, $options); if (! in_array($type, $this->skipValueTypes)) { $value = $this->getValueAttribute($name, $value); } // Once we have the type, value, and ID we can merge them into the rest of the // attributes array so we can convert them into their HTML attribute format // when creating the HTML element. Then, we will return the entire input. $merge = compact('type', 'value', 'id'); $options = array_merge($options, $merge); return $this->toHtmlString('<input' . $this->html->attributes($options) . '>'); } public function text($name, $value = null, $options = []): HtmlString { return $this->input('text', $name, $value, $options); } public function password($name, $options = []): HtmlString { return $this->input('password', $name, '', $options); } public function range($name, $value = null, $options = []): HtmlString { return $this->input('range', $name, $value, $options); } public function hidden($name, $value = null, $options = []): HtmlString { return $this->input('hidden', $name, $value, $options); } public function search($name, $value = null, $options = []): HtmlString { return $this->input('search', $name, $value, $options); } public function email($name, $value = null, $options = []): HtmlString { return $this->input('email', $name, $value, $options); } public function tel($name, $value = null, $options = []): HtmlString { return $this->input('tel', $name, $value, $options); } public function number($name, $value = null, $options = []): HtmlString { return $this->input('number', $name, $value, $options); } public function date($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format('Y-m-d'); } return $this->input('date', $name, $value, $options); } public function datetime($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format(DateTime::RFC3339); } return $this->input('datetime', $name, $value, $options); } public function datetimeLocal($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format('Y-m-d\TH:i'); } return $this->input('datetime-local', $name, $value, $options); } public function time($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format('H:i'); } return $this->input('time', $name, $value, $options); } public function url($name, $value = null, $options = []): HtmlString { return $this->input('url', $name, $value, $options); } public function week($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format('Y-\WW'); } return $this->input('week', $name, $value, $options); } public function file($name, $options = []): HtmlString { return $this->input('file', $name, null, $options); } public function textarea($name, $value = null, $options = []): HtmlString { $this->type = 'textarea'; if (! isset($options['name'])) { $options['name'] = $name; } // Next we will look for the rows and cols attributes, as each of these are put // on the textarea element definition. If they are not present, we will just // assume some sane default values for these attributes for the developer. $options = $this->setTextAreaSize($options); $options['id'] = $this->getIdAttribute($name, $options); $value = (string) $this->getValueAttribute($name, $value); unset($options['size']); // Next we will convert the attributes into a string form. Also we have removed // the size attribute, as it was merely a short-cut for the rows and cols on // the element. Then we'll create the final textarea elements HTML for us. $options = $this->html->attributes($options); return $this->toHtmlString('<textarea' . $options . '>' . e($value, false) . '</textarea>'); } protected function setTextAreaSize($options): array { if (isset($options['size'])) { return $this->setQuickTextAreaSize($options); } // If the "size" attribute was not specified, we will just look for the regular // columns and rows attributes, using sane defaults if these do not exist on // the attributes array. We'll then return this entire options array back. $cols = Arr::get($options, 'cols', 50); $rows = Arr::get($options, 'rows', 10); return array_merge($options, compact('cols', 'rows')); } protected function setQuickTextAreaSize($options): array { $segments = explode('x', $options['size']); return array_merge($options, ['cols' => $segments[0], 'rows' => $segments[1]]); } public function select( $name, $list = [], $selected = null, array $selectAttributes = [], array $optionsAttributes = [], array $optgroupsAttributes = [] ): HtmlString { $this->type = 'select'; // When building a select box the "value" attribute is really the selected one // so we will use that when checking the model or session for a value which // should provide a convenient method of re-populating the forms on post. $selected = $this->getValueAttribute($name, $selected); $selectAttributes['id'] = $this->getIdAttribute($name, $selectAttributes); if (! isset($selectAttributes['name'])) { $selectAttributes['name'] = $name; } // We will simply loop through the options and build an HTML value for each of // them until we have an array of HTML declarations. Then we will join them // all together into one single HTML element that can be put on the form. $html = []; if (isset($selectAttributes['placeholder'])) { $html[] = $this->placeholderOption($selectAttributes['placeholder'], $selected); unset($selectAttributes['placeholder']); } foreach ($list as $value => $display) { $optionAttributes = $optionsAttributes[$value] ?? []; $optgroupAttributes = $optgroupsAttributes[$value] ?? []; $html[] = $this->getSelectOption($display, $value, $selected, $optionAttributes, $optgroupAttributes); } // Once we have all of this HTML, we can join this into a single element after // formatting the attributes into an HTML "attributes" string, then we will // build out a final select statement, which will contain all the values. $selectAttributes = $this->html->attributes($selectAttributes); $list = implode('', $html); return $this->toHtmlString("<select{$selectAttributes}>{$list}</select>"); } public function selectRange($name, $begin, $end, $selected = null, $options = []): HtmlString { $range = array_combine($range = range($begin, $end), $range); return $this->select($name, $range, $selected, $options); } public function selectYear(): mixed { return call_user_func_array([$this, 'selectRange'], func_get_args()); } public function selectMonth($name, $selected = null, $options = [], $format = '%B'): HtmlString { $months = []; foreach (range(1, 12) as $month) { $months[$month] = strftime($format, mktime(0, 0, 0, $month, 1)); } return $this->select($name, $months, $selected, $options); } public function getSelectOption($display, $value, $selected, array $attributes = [], array $optgroupAttributes = []): HtmlString { if (is_iterable($display)) { return $this->optionGroup($display, $value, $selected, $optgroupAttributes, $attributes); } return $this->option($display, $value, $selected, $attributes); } protected function optionGroup($list, $label, $selected, array $attributes = [], array $optionsAttributes = [], $level = 0): HtmlString { $html = []; $space = str_repeat(' ', $level); foreach ($list as $value => $display) { $optionAttributes = $optionsAttributes[$value] ?? []; if (is_iterable($display)) { $html[] = $this->optionGroup($display, $value, $selected, $attributes, $optionAttributes, $level + 5); } else { $html[] = $this->option($space . $display, $value, $selected, $optionAttributes); } } return $this->toHtmlString('<optgroup label="' . e($space . $label, false) . '"' . $this->html->attributes($attributes) . '>' . implode('', $html) . '</optgroup>'); } protected function option($display, $value, $selected, array $attributes = []): HtmlString { $selected = $this->getSelectedValue($value, $selected); $options = array_merge(['value' => $value, 'selected' => $selected], $attributes); $string = '<option' . $this->html->attributes($options) . '>'; if ($display !== null) { $string .= e($display, false) . '</option>'; } return $this->toHtmlString($string); } protected function placeholderOption($display, $selected): HtmlString { $selected = $this->getSelectedValue(null, $selected); $options = [ 'selected' => $selected, 'value' => '', ]; return $this->toHtmlString('<option' . $this->html->attributes($options) . '>' . e($display, false) . '</option>'); } protected function getSelectedValue($value, $selected): bool|string|null { if (is_array($selected)) { return in_array($value, $selected, true) || in_array((string) $value, $selected, true) ? 'selected' : null; } elseif ($selected instanceof Collection) { return $selected->contains($value) ? 'selected' : null; } if (is_int($value) && is_bool($selected)) { return (bool)$value === $selected; } return ((string) $value === (string) $selected) ? 'selected' : null; } public function checkbox($name, $value = 1, $checked = null, $options = []): HtmlString { return $this->checkable('checkbox', $name, $value, $checked, $options); } public function radio($name, $value = null, $checked = null, $options = []): HtmlString { if (is_null($value)) { $value = $name; } return $this->checkable('radio', $name, $value, $checked, $options); } protected function checkable($type, $name, $value, $checked, $options): HtmlString { $this->type = $type; $checked = $this->getCheckedState($type, $name, $value, $checked); if ($checked) { $options['checked'] = 'checked'; } return $this->input($type, $name, $value, $options); } protected function getCheckedState($type, $name, $value, $checked): bool { return match ($type) { 'checkbox' => $this->getCheckboxCheckedState($name, $value, $checked), 'radio' => $this->getRadioCheckedState($name, $value, $checked), default => $this->compareValues($name, $value), }; } protected function getCheckboxCheckedState($name, $value, $checked): bool { $request = $this->request($name); if (isset($this->session) && ! $this->oldInputIsEmpty() && is_null($this->old($name)) && ! $request) { return false; } if ($this->missingOldAndModel($name) && is_null($request)) { return $checked; } $posted = $this->getValueAttribute($name, $checked); if (is_array($posted)) { return in_array($value, $posted); } elseif ($posted instanceof Collection) { return $posted->contains('id', $value); } else { return (bool) $posted; } } protected function getRadioCheckedState($name, $value, $checked): bool { $request = $this->request($name); if ($this->missingOldAndModel($name) && ! $request) { return $checked; } return $this->compareValues($name, $value); } protected function compareValues($name, $value): bool { return $this->getValueAttribute($name) == $value; } protected function missingOldAndModel($name): bool { return (is_null($this->old($name)) && is_null($this->getModelValueAttribute($name))); } public function reset($value, $attributes = []): HtmlString { return $this->input('reset', null, $value, $attributes); } public function image($url, $name = null, $attributes = []): HtmlString { $attributes['src'] = $this->url->asset($url); return $this->input('image', $name, null, $attributes); } public function month($name, $value = null, $options = []): HtmlString { if ($value instanceof DateTime) { $value = $value->format('Y-m'); } return $this->input('month', $name, $value, $options); } public function color($name, $value = null, $options = []): HtmlString { return $this->input('color', $name, $value, $options); } public function submit($value = null, $options = []): HtmlString { return $this->input('submit', null, $value, $options); } public function button($value = null, $options = []): HtmlString { if (! array_key_exists('type', $options)) { $options['type'] = 'button'; } return $this->toHtmlString('<button' . $this->html->attributes($options) . '>' . $value . '</button>'); } public function datalist($id, $list = []): HtmlString { $this->type = 'datalist'; $attributes['id'] = $id; $html = []; if ($this->isAssociativeArray($list)) { foreach ($list as $value => $display) { $html[] = $this->option($display, $value, null, []); } } else { foreach ($list as $value) { $html[] = $this->option($value, $value, null, []); } } $attributes = $this->html->attributes($attributes); $list = implode('', $html); return $this->toHtmlString("<datalist{$attributes}>{$list}</datalist>"); } protected function isAssociativeArray($array): bool { return (array_values($array) !== $array); } protected function getMethod($method): string { $method = strtoupper($method); return $method !== 'GET' ? 'POST' : $method; } protected function getAction(array $options): string { // We will also check for a "route" or "action" parameter on the array so that // developers can easily specify a route or controller action when creating // a form providing a convenient interface for creating the form actions. if (isset($options['url'])) { return $this->getUrlAction($options['url']); } if (isset($options['route'])) { return $this->getRouteAction($options['route']); } // If an action is available, we are attempting to open a form to a controller // action route. So, we will use the URL generator to get the path to these // actions and return them from the method. Otherwise, we'll use current. elseif (isset($options['action'])) { return $this->getControllerAction($options['action']); } return $this->url->current(); } protected function getUrlAction($options): string { if (is_array($options)) { return $this->url->to($options[0], array_slice($options, 1)); } return $this->url->to($options); } protected function getRouteAction($options): string { if (is_array($options)) { $parameters = array_slice($options, 1); if (array_keys($options) === [0, 1]) { $parameters = head($parameters); } return $this->url->route($options[0], $parameters); } return $this->url->route($options); } protected function getControllerAction($options): string { if (is_array($options)) { return $this->url->action($options[0], array_slice($options, 1)); } return $this->url->action($options); } protected function getAppendage($method): string { [$method, $appendage] = [strtoupper($method), '']; // If the HTTP method is in this list of spoofed methods, we will attach the // method spoofer hidden input to the form. This allows us to use regular // form to initiate PUT and DELETE requests in addition to the typical. if (in_array($method, $this->spoofedMethods)) { $appendage .= $this->hidden('_method', $method); } // If the method is something other than GET we will go ahead and attach the // CSRF token to the form, as this can't hurt and is convenient to simply // always have available on every form the developers creates for them. if ($method !== 'GET') { $appendage .= $this->token(); } return $appendage; } public function getIdAttribute($name, $attributes): string { if (array_key_exists('id', $attributes)) { return $attributes['id']; } if (in_array($name, $this->labels)) { return $name; } return ''; } public function getValueAttribute($name, $value = null): mixed { if (is_null($name)) { return $value; } $old = $this->old($name); if (! is_null($old) && $name !== '_method') { return $old; } if (function_exists('app')) { $hasNullMiddleware = app("Illuminate\Contracts\Http\Kernel") ->hasMiddleware(ConvertEmptyStringsToNull::class); if ($hasNullMiddleware && is_null($old) && is_null($value) && ! is_null($this->view->shared('errors')) && count(is_countable($this->view->shared('errors')) ? $this->view->shared('errors') : []) > 0 ) { return null; } } $request = $this->request($name); if (! is_null($request) && $name != '_method') { return $request; } if (! is_null($value)) { return $value; } if (isset($this->model)) { return $this->getModelValueAttribute($name); } return ''; } public function considerRequest($consider = true): void { $this->considerRequest = $consider; } protected function request($name): array|string|null { if (! $this->considerRequest) { return null; } if (! isset($this->request)) { return null; } return $this->request->input($this->transformKey($name)); } protected function getModelValueAttribute($name): mixed { $key = $this->transformKey($name); if ((is_string($this->model) || is_object($this->model)) && method_exists($this->model, 'getFormValue')) { return $this->model->getFormValue($key); } return data_get($this->model, $key); } public function old($name): mixed { if (isset($this->session)) { $key = $this->transformKey($name); $payload = $this->session->getOldInput($key); if (! is_array($payload)) { return $payload; } if (! in_array($this->type, ['select', 'checkbox'])) { if (! isset($this->payload[$key])) { $this->payload[$key] = collect($payload); } if (! empty($this->payload[$key])) { return $this->payload[$key]->shift(); } } return $payload; } return ''; } public function oldInputIsEmpty(): bool { return (isset($this->session) && count((array) $this->session->getOldInput()) === 0); } protected function transformKey($key): array|string { return str_replace(['.', '[]', '[', ']'], ['_', '', '.', ''], $key); } protected function toHtmlString($html): HtmlString { return new HtmlString($html); } public function getSessionStore(): Session { return $this->session; } public function setSessionStore(Session $session): static { $this->session = $session; return $this; } public function __call($method, $parameters) { if (static::hasComponent($method)) { return $this->componentCall($method, $parameters); } if (static::hasMacro($method)) { return $this->macroCall($method, $parameters); } throw new BadMethodCallException("Method {$method} does not exist."); } }
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