views_table_filter.module in Views Table Filter 8

Allows users to move exposed filters to the view's table header.

File

views_table_filter.module

<?php

/**
 * @file
 * Allows users to move exposed filters to the view's table header.
 */
use Drupal\Component\Utility\Html;

/**
 * Implements hook_form_FORM_ID_alter().
 */
function views_table_filter_form_views_ui_edit_display_form_alter(&$form, &$form_state, $form_id) {
  $view = $form_state
    ->get('view');
  if (empty($view)) {
    return;
  }
  $view = $view
    ->getExecutable();
  $exposed_form = $view->display_handler
    ->getPlugin('exposed_form');
  if (!isset($exposed_form->options['bef'])) {
    return;
  }
  $style = $view->display_handler
    ->getPlugin('style');
  if (!isset($style->options['columns'])) {

    // Not a table style.
    return;
  }
  $bef_form =& $form['options']['exposed_form_options']['bef'];
  if (empty($bef_form)) {
    return;
  }
  $filters = [];
  foreach ($view->display_handler
    ->getHandlers('filter') as $name => $filter) {
    if (!empty($filter->options['exposed'])) {
      $filters[$name] = $filter;
    }
  }
  if (empty($filters)) {
    return;
  }
  $labels = $view->display_handler
    ->getFieldLabels();
  $columns = [
    '_none' => t('No'),
  ];
  foreach ($style->options['columns'] as $field => $column) {
    if ($field === $column) {
      $columns[$field] = !empty($labels[$field]) ? $labels[$field] : $field;
    }
  }
  if (count($columns) < 2) {
    return;
  }
  foreach ($filters as $name => $filter) {
    if (!isset($bef_form['filter'][$name]['configuration']['advanced'])) {
      continue;
    }
    $default = isset($exposed_form->options['bef']['filter'][$name]['advanced']['table_filter']) ? $exposed_form->options['bef']['filter'][$name]['advanced']['table_filter'] : '_none';
    $bef_form['filter'][$name]['configuration']['advanced']['table_filter'] = [
      '#type' => 'select',
      '#title' => t('Move filter to the table column'),
      '#options' => $columns,
      '#default_value' => $default,
    ];
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function views_table_filter_form_views_exposed_form_alter(&$form, &$form_state, $form_id) {
  $view = $form_state
    ->get('view');
  if (empty($view)) {
    return;
  }
  $exposed_form = $view->display_handler
    ->getPlugin('exposed_form');
  if (empty($exposed_form->options['bef'])) {
    return;
  }
  $has_table_filters = FALSE;
  foreach ($exposed_form->options['bef']['filter'] as $settings) {
    if (empty($settings['advanced']['table_filter'])) {
      continue;
    }
    $column = $settings['advanced']['table_filter'];
    if ($column !== '_none') {
      $has_table_filters = TRUE;
    }
  }
  if (!$has_table_filters) {
    return;
  }
  $style = $view->display_handler
    ->getPlugin('style');
  if (!isset($style->options['columns'])) {

    // Not a table style.
    return;
  }
  $style->options['empty_table'] = TRUE;
  $form['views_table_filter'] = [
    '#type' => 'hidden',
    '#value' => $view
      ->id() . ':' . $view->current_display,
    '#attributes' => [
      'class' => [
        'views-table-filter',
      ],
    ],
  ];
}

/**
 * Implements hook_preprocess_views_view_table().
 */
function views_table_filter_preprocess_views_view_table(&$vars) {
  $view = $vars['view'];
  if (!$view->display_handler
    ->usesExposed()) {
    return;
  }
  $exposed_form = $view->display_handler
    ->getPlugin('exposed_form');
  if (empty($exposed_form->options['bef']['filter'])) {
    return;
  }
  $filter_columns = [];
  foreach ($exposed_form->options['bef']['filter'] as $filter => $settings) {
    if (empty($settings['advanced']['table_filter'])) {
      continue;
    }
    $column = $settings['advanced']['table_filter'];
    if ($column !== '_none') {
      $filter_columns[$filter] = $column;
    }
  }
  $settings = [];
  foreach ($filter_columns as $filter => $column) {
    if (!isset($vars['header'][$column]) || !isset($view->filter[$filter]->options['expose']['identifier'])) {
      continue;
    }
    $identifier = $view->filter[$filter]->options['expose']['identifier'];
    $filter = Html::cleanCssIdentifier($filter);
    $content = '';
    if (is_string($vars['header'][$column]['content'])) {
      $content = $vars['header'][$column]['content'];
    }
    else {
      $content = \Drupal::service('renderer')
        ->render($vars['header'][$column]['content']);
    }
    $vars['header'][$column]['content'] = [
      '#markup' => $content . '<div class="table-header-filter table-header-filter-' . $filter . '"></div>',
    ];
    $settings[$filter] = $identifier;
  }
  if (empty($settings)) {
    return;
  }
  $vars['#attached']['library'][] = 'views_table_filter/views_table_filter.core';
  $vars['#attached']['drupalSettings']['views_table_filter'][$view
    ->id() . ':' . $view->current_display] = $settings;
}

Functions

Name	Description
views_table_filter_form_views_exposed_form_alter	Implements hook_form_FORM_ID_alter().
views_table_filter_form_views_ui_edit_display_form_alter	Implements hook_form_FORM_ID_alter().
views_table_filter_preprocess_views_view_table	Implements hook_preprocess_views_view_table().