diff options
Diffstat (limited to 'vendor/ipl/web/src/Control/SearchBar/Suggestions.php')
| -rw-r--r-- | vendor/ipl/web/src/Control/SearchBar/Suggestions.php | 451 |
1 files changed, 451 insertions, 0 deletions
diff --git a/vendor/ipl/web/src/Control/SearchBar/Suggestions.php b/vendor/ipl/web/src/Control/SearchBar/Suggestions.php new file mode 100644 index 0000000..fe4a2db --- /dev/null +++ b/vendor/ipl/web/src/Control/SearchBar/Suggestions.php @@ -0,0 +1,451 @@ +<?php + +namespace ipl\Web\Control\SearchBar; + +use Countable; +use Generator; +use ipl\Html\Attributes; +use ipl\Html\BaseHtmlElement; +use ipl\Html\FormattedString; +use ipl\Html\FormElement\ButtonElement; +use ipl\Html\FormElement\InputElement; +use ipl\Html\HtmlElement; +use ipl\Html\Text; +use ipl\Stdlib\Contract\Paginatable; +use ipl\Stdlib\Filter; +use ipl\Web\Control\SearchEditor; +use ipl\Web\Filter\QueryString; +use IteratorIterator; +use LimitIterator; +use OuterIterator; +use Psr\Http\Message\ServerRequestInterface; +use Traversable; + +use function ipl\I18n\t; + +abstract class Suggestions extends BaseHtmlElement +{ + const DEFAULT_LIMIT = 50; + const SUGGESTION_TITLE_CLASS = 'suggestion-title'; + + protected $tag = 'ul'; + + /** @var string */ + protected $searchTerm; + + /** @var Traversable */ + protected $data; + + /** @var array */ + protected $default; + + /** @var string */ + protected $type; + + /** @var string */ + protected $failureMessage; + + public function setSearchTerm($term) + { + $this->searchTerm = $term; + + return $this; + } + + public function setData($data) + { + $this->data = $data; + + return $this; + } + + public function setDefault($default) + { + $this->default = $default; + + return $this; + } + + public function setType($type) + { + $this->type = $type; + + return $this; + } + + public function setFailureMessage($message) + { + $this->failureMessage = $message; + + return $this; + } + + /** + * Return whether the relation should be shown for the given column + * + * @param string $column + * + * @return bool + */ + protected function shouldShowRelationFor(string $column): bool + { + return false; + } + + /** + * Create a filter to provide as default for column suggestions + * + * @param string $searchTerm + * + * @return Filter\Rule + */ + abstract protected function createQuickSearchFilter($searchTerm); + + /** + * Fetch value suggestions for a particular column + * + * @param string $column + * @param string $searchTerm + * @param Filter\Chain $searchFilter + * + * @return Traversable + */ + abstract protected function fetchValueSuggestions($column, $searchTerm, Filter\Chain $searchFilter); + + /** + * Fetch column suggestions + * + * @param string $searchTerm + * + * @return Traversable + */ + abstract protected function fetchColumnSuggestions($searchTerm); + + protected function filterToTerms(Filter\Chain $filter) + { + $logicalSep = [ + 'label' => QueryString::getRuleSymbol($filter), + 'search' => QueryString::getRuleSymbol($filter), + 'class' => 'logical_operator', + 'type' => 'logical_operator' + ]; + + $terms = []; + foreach ($filter as $child) { + if ($child instanceof Filter\Chain) { + $terms[] = [ + 'search' => '(', + 'label' => '(', + 'type' => 'grouping_operator', + 'class' => 'grouping_operator_open' + ]; + $terms = array_merge($terms, $this->filterToTerms($child)); + $terms[] = [ + 'search' => ')', + 'label' => ')', + 'type' => 'grouping_operator', + 'class' => 'grouping_operator_close' + ]; + } else { + /** @var Filter\Condition $child */ + + $terms[] = [ + 'search' => $child->getColumn(), + 'label' => $child->metaData()->get('columnLabel') ?? $child->getColumn(), + 'type' => 'column' + ]; + $terms[] = [ + 'search' => QueryString::getRuleSymbol($child), + 'label' => QueryString::getRuleSymbol($child), + 'type' => 'operator' + ]; + $terms[] = [ + 'search' => $child->getValue(), + 'label' => $child->getValue(), + 'type' => 'value' + ]; + } + + $terms[] = $logicalSep; + } + + array_pop($terms); + return $terms; + } + + protected function assembleDefault() + { + if ($this->default === null) { + return; + } + + $attributes = [ + 'type' => 'button', + 'tabindex' => -1, + 'data-label' => $this->default['search'], + 'value' => $this->default['search'] + ]; + if (isset($this->default['type'])) { + $attributes['data-type'] = $this->default['type']; + } elseif ($this->type !== null) { + $attributes['data-type'] = $this->type; + } + + $button = new ButtonElement(null, $attributes); + if (isset($this->default['type']) && $this->default['type'] === 'terms') { + $terms = $this->filterToTerms($this->default['terms']); + $list = new HtmlElement('ul', Attributes::create(['class' => 'comma-separated'])); + foreach ($terms as $data) { + if ($data['type'] === 'column') { + $list->addHtml(new HtmlElement( + 'li', + null, + new HtmlElement('em', null, Text::create($data['label'])) + )); + } + } + + $button->setAttribute('data-terms', json_encode($terms)); + $button->addHtml(FormattedString::create( + t('Search for %s in: %s'), + new HtmlElement('em', null, Text::create($this->default['search'])), + $list + )); + } else { + $button->addHtml(FormattedString::create( + t('Search for %s'), + new HtmlElement('em', null, Text::create($this->default['search'])) + )); + } + + $this->prependHtml(new HtmlElement('li', Attributes::create(['class' => 'default']), $button)); + } + + protected function assemble() + { + if ($this->failureMessage !== null) { + $this->addHtml(new HtmlElement( + 'li', + Attributes::create(['class' => 'failure-message']), + new HtmlElement('em', null, Text::create(t('Can\'t search:'))), + Text::create($this->failureMessage) + )); + return; + } + + if ($this->data === null) { + $data = []; + } elseif ($this->data instanceof Paginatable) { + $this->data->limit(self::DEFAULT_LIMIT); + $data = $this->data; + } else { + $data = new LimitIterator(new IteratorIterator($this->data), 0, self::DEFAULT_LIMIT); + } + + foreach ($data as $term => $meta) { + if (is_int($term)) { + $term = $meta; + } + + $attributes = [ + 'type' => 'button', + 'tabindex' => -1, + 'data-search' => $term, + 'data-title' => $term + ]; + if ($this->type !== null) { + $attributes['data-type'] = $this->type; + } + + if (is_array($meta)) { + foreach ($meta as $key => $value) { + if ($key === 'label') { + $label = $value; + } + + $attributes['data-' . $key] = $value; + } + } else { + $label = $meta; + $attributes['data-label'] = $meta; + } + + $button = (new ButtonElement(null, $attributes)) + ->setAttribute('value', $label) + ->addHtml(Text::create($label)); + if ($this->type === 'column' && $this->shouldShowRelationFor($term)) { + $relationPath = substr($term, 0, strrpos($term, '.')); + $button->getAttributes()->add('class', 'has-details'); + $button->addHtml(new HtmlElement( + 'span', + Attributes::create(['class' => 'relation-path']), + Text::create($relationPath) + )); + } + + $this->addHtml(new HtmlElement('li', null, $button)); + } + + if ($this->hasMore($data, self::DEFAULT_LIMIT)) { + $this->getAttributes()->add('class', 'has-more'); + } + + $showDefault = true; + if ($this->searchTerm && $this->count() === 1) { + // The default option is only shown if the user's input does not result in an exact match + $input = $this->getFirst('li')->getFirst('button'); + $showDefault = $input->getContent() != $this->searchTerm + && $input->getAttributes()->get('data-search')->getValue() != $this->searchTerm; + } + + if ($this->type === 'column' && ! $this->isEmpty() && ! $this->getFirst('li')->getAttributes()->has('class')) { + // The column title is only added if there are any suggestions and the first item is not a title already + $this->prependHtml(new HtmlElement( + 'li', + Attributes::create(['class' => static::SUGGESTION_TITLE_CLASS]), + Text::create(t('Columns')) + )); + } + + if ($showDefault) { + $this->assembleDefault(); + } + + if (! $this->searchTerm && $this->isEmpty()) { + $this->addHtml(new HtmlElement( + 'li', + Attributes::create(['class' => 'nothing-to-suggest']), + new HtmlElement('em', null, Text::create(t('Nothing to suggest'))) + )); + } + } + + /** + * Load suggestions as requested by the client + * + * @param ServerRequestInterface $request + * + * @return $this + */ + public function forRequest(ServerRequestInterface $request) + { + if ($request->getMethod() !== 'POST') { + return $this; + } + + $requestData = json_decode($request->getBody()->read(8192), true); + if (empty($requestData)) { + return $this; + } + + $search = $requestData['term']['search']; + $label = $requestData['term']['label']; + $type = $requestData['term']['type']; + + $this->setSearchTerm($search); + $this->setType($type); + + switch ($type) { + case 'value': + if (! $requestData['column'] || $requestData['column'] === SearchEditor::FAKE_COLUMN) { + $this->setFailureMessage(t('Missing column name')); + break; + } + + $searchFilter = QueryString::parse( + isset($requestData['searchFilter']) + ? $requestData['searchFilter'] + : '' + ); + if ($searchFilter instanceof Filter\Condition) { + $searchFilter = Filter::all($searchFilter); + } + + try { + $this->setData($this->fetchValueSuggestions($requestData['column'], $label, $searchFilter)); + } catch (SearchException $e) { + $this->setFailureMessage($e->getMessage()); + } + + if ($search) { + $this->setDefault([ + 'search' => $requestData['operator'] === '~' || $requestData['operator'] === '!~' + ? $label + : $search + ]); + } + + break; + case 'column': + $this->setData($this->filterColumnSuggestions($this->fetchColumnSuggestions($label), $label)); + + if ($search && isset($requestData['showQuickSearch']) && $requestData['showQuickSearch']) { + $quickFilter = $this->createQuickSearchFilter($label); + if (! $quickFilter instanceof Filter\Chain || ! $quickFilter->isEmpty()) { + $this->setDefault([ + 'search' => $label, + 'type' => 'terms', + 'terms' => $quickFilter + ]); + } + } + } + + return $this; + } + + protected function hasMore($data, $than) + { + if (is_array($data)) { + return count($data) > $than; + } elseif ($data instanceof Countable) { + return $data->count() > $than; + } elseif ($data instanceof OuterIterator) { + return $this->hasMore($data->getInnerIterator(), $than); + } + + return false; + } + + /** + * Filter the given suggestions by the client's input + * + * @param Traversable $data + * @param string $searchTerm + * + * @return Generator + */ + protected function filterColumnSuggestions($data, $searchTerm) + { + foreach ($data as $key => $value) { + if ($this->matchSuggestion($key, $value, $searchTerm)) { + yield $key => $value; + } + } + } + + /** + * Get whether the given suggestion should be provided to the client + * + * @param string $path + * @param string $label + * @param string $searchTerm + * + * @return bool + */ + protected function matchSuggestion($path, $label, $searchTerm) + { + return fnmatch($searchTerm, $label, FNM_CASEFOLD) || fnmatch($searchTerm, $path, FNM_CASEFOLD); + } + + public function renderUnwrapped() + { + $this->ensureAssembled(); + + if ($this->isEmpty()) { + return ''; + } + + return parent::renderUnwrapped(); + } +} |