views.module 55.7 KB
Newer Older
merlinofchaos's avatar
merlinofchaos committed
1
2
3
4
5
6
7
8
9
10
11
<?php

/**
 * @file
 * Primarily Drupal hooks and global API functions to manipulate views.
 *
 * This is the main module file for Views. The main entry points into
 * this module are views_page() and views_block(), where it handles
 * incoming page and block requests.
 */

12
use Drupal\Core\Cache\Cache;
13
use Drupal\Core\Database\Query\AlterableInterface;
14
use Drupal\Core\Language\Language;
15
use Drupal\views\ViewExecutable;
16
use Drupal\Component\Plugin\Exception\PluginException;
17
use Drupal\views\Plugin\Core\Entity\View;
18
use Drupal\views\Views;
19

merlinofchaos's avatar
merlinofchaos committed
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
/**
 * Implements hook_forms().
 *
 * To provide distinct form IDs for Views forms, the View name and
 * specific display name are appended to the base ID,
 * views_form_views_form. When such a form is built or submitted, this
 * function will return the proper callback function to use for the given form.
 */
function views_forms($form_id, $args) {
  if (strpos($form_id, 'views_form_') === 0) {
    return array(
      $form_id => array(
        'callback' => 'views_form',
      ),
    );
  }
}

/**
 * Returns a form ID for a Views form using the name and display of the View.
 */
function views_form_id($view) {
  $parts = array(
    'views_form',
44
    $view->storage->id(),
merlinofchaos's avatar
merlinofchaos committed
45
46
47
48
49
50
    $view->current_display,
  );

  return implode('_', $parts);
}

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
/**
 * Implements hook_element_info().
 */
function views_element_info() {
  $types['view'] = array(
    '#theme_wrappers' => array('container'),
    '#pre_render' => array('views_pre_render_view_element'),
    '#name' => NULL,
    '#display_id' => 'default',
    '#arguments' => array(),
  );
  return $types;
}

/**
 * View element pre render callback.
 */
function views_pre_render_view_element($element) {
  $element['#attributes']['class'][] = 'views-element-container';

  $view = views_get_view($element['#name']);
  if ($view && $view->access($element['#display_id'])) {
73
    $element['view'] = $view->preview($element['#display_id'], $element['#arguments']);
74
75
76
77
78
  }

  return $element;
}

merlinofchaos's avatar
merlinofchaos committed
79
80
81
82
/**
 * Implement hook_theme(). Register views theming functions.
 */
function views_theme($existing, $type, $theme, $path) {
83
  Drupal::moduleHandler()->loadInclude('views', 'inc', 'views.theme');
merlinofchaos's avatar
merlinofchaos committed
84
85
86

  // Some quasi clever array merging here.
  $base = array(
87
    'file' => 'views.theme.inc',
merlinofchaos's avatar
merlinofchaos committed
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
  );

  // Our extra version of pager from pager.inc
  $hooks['views_mini_pager'] = $base + array(
    'variables' => array('tags' => array(), 'quantity' => 10, 'element' => 0, 'parameters' => array()),
    'pattern' => 'views_mini_pager__',
  );

  $variables = array(
    // For displays, we pass in a dummy array as the first parameter, since
    // $view is an object but the core contextual_preprocess() function only
    // attaches contextual links when the primary theme argument is an array.
    'display' => array('view_array' => array(), 'view' => NULL),
    'style' => array('view' => NULL, 'options' => NULL, 'rows' => NULL, 'title' => NULL),
    'row' => array('view' => NULL, 'options' => NULL, 'row' => NULL, 'field_alias' => NULL),
    'exposed_form' => array('view' => NULL, 'options' => NULL),
    'pager' => array(
      'view' => NULL, 'options' => NULL,
      'tags' => array(), 'quantity' => 10, 'element' => 0, 'parameters' => array()
    ),
  );

  // Default view themes
  $hooks['views_view_field'] = $base + array(
    'pattern' => 'views_view_field__',
    'variables' => array('view' => NULL, 'field' => NULL, 'row' => NULL),
  );
  $hooks['views_view_grouping'] = $base + array(
    'variables' => array('view' => NULL, 'grouping' => NULL, 'grouping_level' => NULL, 'rows' => NULL, 'title' => NULL),
117
    'template' => 'views-view-grouping',
merlinofchaos's avatar
merlinofchaos committed
118
119
  );

120
  $plugins = views_get_plugin_definitions();
merlinofchaos's avatar
merlinofchaos committed
121
122
123
124

  // Register theme functions for all style plugins
  foreach ($plugins as $type => $info) {
    foreach ($info as $plugin => $def) {
125
126
127
128
129
      // Not all plugins have theme functions, and they can also explicitly
      // prevent a theme function from being registered automatically.
      if (!isset($def['theme']) || empty($def['register_theme'])) {
        continue;
      }
merlinofchaos's avatar
merlinofchaos committed
130

131
132
133
134
      $hooks[$def['theme']] = array(
        'pattern' => $def['theme'] . '__',
        'variables' => $variables[$type],
      );
merlinofchaos's avatar
merlinofchaos committed
135

136
137
138
139
140
      if ($def['module'] == 'views') {
        $def['theme_file'] = 'views.theme.inc';
      }
      elseif (isset($def['theme_file'])) {
        $def['theme_path'] = drupal_get_path('module', $def['module']);
merlinofchaos's avatar
merlinofchaos committed
141
142
      }

143
144
145
146
147
148
149
150
151
152
      if (isset($def['theme_path'])) {
        $hooks[$def['theme']]['path'] = $def['theme_path'];
      }
      if (isset($def['theme_file'])) {
        $hooks[$def['theme']]['file'] = $def['theme_file'];
      }
      if (isset($def['theme_path']) && isset($def['theme_file'])) {
        $include = DRUPAL_ROOT . '/' . $def['theme_path'] . '/' . $def['theme_file'];
        if (is_file($include)) {
          require_once $include;
merlinofchaos's avatar
merlinofchaos committed
153
154
        }
      }
155
156
157
      if (!function_exists('theme_' . $def['theme'])) {
        $hooks[$def['theme']]['template'] = drupal_clean_css_identifier($def['theme']);
      }
merlinofchaos's avatar
merlinofchaos committed
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
    }
  }

  $hooks['views_form_views_form'] = $base + array(
    'render element' => 'form',
  );

  $hooks['views_exposed_form'] = $base + array(
    'template' => 'views-exposed-form',
    'pattern' => 'views_exposed_form__',
    'render element' => 'form',
  );

  $hooks['views_more'] = $base + array(
    'variables' => array('more_url' => NULL, 'link_text' => 'more', 'view' => NULL),
173
    'template' => 'views-more',
merlinofchaos's avatar
merlinofchaos committed
174
175
176
177
178
  );

  return $hooks;
}

179
180
181
182
183
184
185
186
187
188
189
190
191
/**
 * Returns a list of plugins and metadata about them.
 *
 * @return array
 *   An array keyed by PLUGIN_TYPE:PLUGIN_NAME, like 'display:page' or
 *   'pager:full', containing an array with the following keys:
 *   - title: The plugin's title.
 *   - type: The plugin type.
 *   - module: The module providing the plugin.
 *   - views: An array of enabled Views that are currently using this plugin,
 *     keyed by machine name.
 */
function views_plugin_list() {
192
  $plugin_data = views_get_plugin_definitions();
193
194
  $plugins = array();
  foreach (views_get_enabled_views() as $view) {
195
    foreach ($view->get('display') as $display_id => $display) {
196
      foreach ($plugin_data as $type => $info) {
197
198
        if ($type == 'display' && isset($display['display_plugin'])) {
          $name = $display['display_plugin'];
199
        }
200
201
        elseif (isset($display['display_options']["{$type}_plugin"])) {
          $name = $display['display_options']["{$type}_plugin"];
202
        }
203
204
        elseif (isset($display['display_options'][$type]['type'])) {
          $name = $display['display_options'][$type]['type'];
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
        }
        else {
          continue;
        }

        // Key first by the plugin type, then the name.
        $key = $type . ':' . $name;
        // Add info for this plugin.
        if (!isset($plugins[$key])) {
          $plugins[$key] = array(
            'type' => $type,
            'title' => check_plain($info[$name]['title']),
            'module' => check_plain($info[$name]['module']),
            'views' => array(),
          );
        }

        // Add this view to the list for this plugin.
223
        $plugins[$key]['views'][$view->id()] = $view->id();
224
225
226
227
228
229
      }
    }
  }
  return $plugins;
}

merlinofchaos's avatar
merlinofchaos committed
230
231
232
233
234
235
236
237
238
/**
 * A theme preprocess function to automatically allow view-based node
 * templates if called from a view.
 *
 * The 'modules/node.views.inc' file is a better place for this, but
 * we haven't got a chance to load that file before Drupal builds the
 * node portion of the theme registry.
 */
function views_preprocess_node(&$vars) {
239
  Drupal::moduleHandler()->loadInclude('node', 'views.inc');
merlinofchaos's avatar
merlinofchaos committed
240
  // The 'view' attribute of the node is added in views_preprocess_node()
241
  if (!empty($vars['node']->view) && $vars['node']->view->storage->id()) {
merlinofchaos's avatar
merlinofchaos committed
242
    $vars['view'] = $vars['node']->view;
243
    $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
244
    if (!empty($vars['node']->view->current_display)) {
245
      $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id() . '__' . $vars['node']->view->current_display;
merlinofchaos's avatar
merlinofchaos committed
246
247
248

      // If a node is being rendered in a view, and the view does not have a path,
      // prevent drupal from accidentally setting the $page variable:
249
      if ($vars['page'] && $vars['view_mode'] == 'full' && !$vars['view']->display_handler->hasPath()) {
merlinofchaos's avatar
merlinofchaos committed
250
251
252
253
254
255
        $vars['page'] = FALSE;
      }
    }
  }

  // Allow to alter comments and links based on the settings in the row plugin.
256
  if (!empty($vars['view']->rowPlugin) && $vars['view']->rowPlugin->getPluginId() == 'node') {
merlinofchaos's avatar
merlinofchaos committed
257
258
259
260
261
262
263
264
265
266
    node_row_node_view_preprocess_node($vars);
  }
}

/**
 * A theme preprocess function to automatically allow view-based node
 * templates if called from a view.
 */
function views_preprocess_comment(&$vars) {
  // The 'view' attribute of the node is added in template_preprocess_views_view_row_comment()
267
  if (!empty($vars['comment']->view) && $vars['comment']->view->storage->id()) {
268
    $vars['view'] = &$vars['comment']->view;
269
    $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
270
    if (!empty($vars['node']->view->current_display)) {
271
      $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id() . '__' . $vars['comment']->view->current_display;
merlinofchaos's avatar
merlinofchaos committed
272
273
274
275
276
    }
  }
}

/**
277
 * Implements hook_permission().
merlinofchaos's avatar
merlinofchaos committed
278
279
280
281
282
283
 */
function views_permission() {
  return array(
    'access all views' => array(
      'title' => t('Bypass views access control'),
      'description' => t('Bypass access control when accessing views.'),
284
      'restrict access' => TRUE,
merlinofchaos's avatar
merlinofchaos committed
285
286
287
288
289
290
291
292
    ),
  );
}

/**
 * Implement hook_menu().
 */
function views_menu() {
293
  // Any event which causes a menu rebuild could potentially mean that the
merlinofchaos's avatar
merlinofchaos committed
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
  // Views data is updated -- module changes, profile changes, etc.
  views_invalidate_cache();
  $items = array();
  $items['views/ajax'] = array(
    'title' => 'Views',
    'page callback' => 'views_ajax',
    'theme callback' => 'ajax_base_page_theme',
    'delivery callback' => 'ajax_deliver',
    'access callback' => TRUE,
    'description' => 'Ajax callback for view loading.',
    'type' => MENU_CALLBACK,
    'file' => 'includes/ajax.inc',
  );
  // Define another taxonomy autocomplete because the default one of drupal
  // does not support a vid a argument anymore
309
  $items['admin/views/ajax/autocomplete/taxonomy/%'] = array(
merlinofchaos's avatar
merlinofchaos committed
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
    'page callback' => 'views_ajax_autocomplete_taxonomy',
    'theme callback' => 'ajax_base_page_theme',
    'access callback' => 'user_access',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
    'file' => 'includes/ajax.inc',
  );
  return $items;
}

/**
 * Implement hook_menu_alter().
 */
function views_menu_alter(&$callbacks) {
  $our_paths = array();
325
  $views = views_get_applicable_views('uses_hook_menu');
merlinofchaos's avatar
merlinofchaos committed
326
327
  foreach ($views as $data) {
    list($view, $display_id) = $data;
328
    $result = $view->executeHookMenu($display_id, $callbacks);
merlinofchaos's avatar
merlinofchaos committed
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
    if (is_array($result)) {
      // The menu system doesn't support having two otherwise
      // identical paths with different placeholders.  So we
      // want to remove the existing items from the menu whose
      // paths would conflict with ours.

      // First, we must find any existing menu items that may
      // conflict.  We use a regular expression because we don't
      // know what placeholders they might use.  Note that we
      // first construct the regex itself by replacing %views_arg
      // in the display path, then we use this constructed regex
      // (which will be something like '#^(foo/%[^/]*/bar)$#') to
      // search through the existing paths.
      $regex = '#^(' . preg_replace('#%views_arg#', '%[^/]*', implode('|', array_keys($result))) . ')$#';
      $matches = preg_grep($regex, array_keys($callbacks));

      // Remove any conflicting items that were found.
      foreach ($matches as $path) {
        // Don't remove the paths we just added!
        if (!isset($our_paths[$path])) {
          unset($callbacks[$path]);
        }
      }
      foreach ($result as $path => $item) {
        if (!isset($callbacks[$path])) {
          // Add a new item, possibly replacing (and thus effectively
          // overriding) one that we removed above.
          $callbacks[$path] = $item;
        }
        $our_paths[$path] = TRUE;
      }
    }
    $view->destroy();
  }
}

/**
 * Helper function for menu loading. This will automatically be
 * called in order to 'load' a views argument; primarily it
 * will be used to perform validation.
 *
 * @param $value
 *   The actual value passed.
 * @param $name
 *   The name of the view. This needs to be specified in the 'load function'
 *   of the menu entry.
 * @param $display_id
 *   The display id that will be loaded for this menu item.
 * @param $index
 *   The menu argument index. This counts from 1.
 */
function views_arg_load($value, $name, $display_id, $index) {
  static $views = array();

  // Make sure we haven't already loaded this views argument for a similar menu
  // item elsewhere.
  $key = $name . ':' . $display_id . ':' . $value . ':' . $index;
  if (isset($views[$key])) {
    return $views[$key];
  }

  if ($view = views_get_view($name)) {
391
392
    $view->setDisplay($display_id);
    $view->initHandlers();
merlinofchaos's avatar
merlinofchaos committed
393
394
395
396

    $ids = array_keys($view->argument);

    $indexes = array();
397
    $path = explode('/', $view->getPath());
merlinofchaos's avatar
merlinofchaos committed
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437

    foreach ($path as $id => $piece) {
      if ($piece == '%' && !empty($ids)) {
        $indexes[$id] = array_shift($ids);
      }
    }

    if (isset($indexes[$index])) {
      if (isset($view->argument[$indexes[$index]])) {
        $arg = $view->argument[$indexes[$index]]->validate_argument($value) ? $value : FALSE;
        $view->destroy();

        // Store the output in case we load this same menu item again.
        $views[$key] = $arg;
        return $arg;
      }
    }
    $view->destroy();
  }
}

/**
 * Page callback: Displays a page view, given a name and display id.
 *
 * @param $name
 *   The name of a view.
 * @param $display_id
 *   The display id of a view.
 *
 * @return
 *   Either the HTML of a fully-executed view, or MENU_NOT_FOUND.
 */
function views_page($name, $display_id) {
  $args = func_get_args();
  // Remove $name and $display_id from the arguments.
  array_shift($args);
  array_shift($args);

  // Load the view and render it.
  if ($view = views_get_view($name)) {
438
    return $view->executeDisplay($display_id, $args);
merlinofchaos's avatar
merlinofchaos committed
439
440
441
442
443
444
445
446
447
448
449
450
451
  }

  // Fallback; if we get here no view was found or handler was not valid.
  return MENU_NOT_FOUND;
}

/**
 * Implements hook_page_alter().
 */
function views_page_alter(&$page) {
  // If the main content of this page contains a view, attach its contextual
  // links to the overall page array. This allows them to be rendered directly
  // next to the page title.
452
  if ($view = views_get_page_view()) {
merlinofchaos's avatar
merlinofchaos committed
453
454
455
456
457
458
459
460
    views_add_contextual_links($page, 'page', $view, $view->current_display);
  }
}

/**
 * Implements MODULE_preprocess_HOOK().
 */
function views_preprocess_html(&$variables) {
461
462
463
464
465
  // Early-return to prevent adding unnecessary JavaScript.
  if (!user_access('access contextual links')) {
    return;
  }

merlinofchaos's avatar
merlinofchaos committed
466
467
468
469
470
471
472
473
474
475
  // If the page contains a view as its main content, contextual links may have
  // been attached to the page as a whole; for example, by views_page_alter().
  // This allows them to be associated with the page and rendered by default
  // next to the page title (which we want). However, it also causes the
  // Contextual Links module to treat the wrapper for the entire page (i.e.,
  // the <body> tag) as the HTML element that these contextual links are
  // associated with. This we don't want; for better visual highlighting, we
  // prefer a smaller region to be chosen. The region we prefer differs from
  // theme to theme and depends on the details of the theme's markup in
  // page.tpl.php, so we can only find it using JavaScript. We therefore remove
476
  // the "contextual-region" class from the <body> tag here and add
merlinofchaos's avatar
merlinofchaos committed
477
  // JavaScript that will insert it back in the correct place.
478
  if (!empty($variables['page']['#views_contextual_links'])) {
479
    $key = array_search('contextual-region', $variables['attributes']['class']);
merlinofchaos's avatar
merlinofchaos committed
480
    if ($key !== FALSE) {
481
      unset($variables['attributes']['class'][$key]);
482
      $variables['attributes']['data-views-page-contextual-id'] = $variables['title_suffix']['contextual_links']['#id'];
merlinofchaos's avatar
merlinofchaos committed
483
484
      // Add the JavaScript, with a group and weight such that it will run
      // before modules/contextual/contextual.js.
485
      drupal_add_library('views', 'views.contextual-links');
merlinofchaos's avatar
merlinofchaos committed
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
    }
  }
}

/**
 * Adds contextual links associated with a view display to a renderable array.
 *
 * This function should be called when a view is being rendered in a particular
 * location and you want to attach the appropriate contextual links (e.g.,
 * links for editing the view) to it.
 *
 * The function operates by checking the view's display plugin to see if it has
 * defined any contextual links that are intended to be displayed in the
 * requested location; if so, it attaches them. The contextual links intended
 * for a particular location are defined by the 'contextual links' and
501
502
503
 * 'contextual_links_locations' properties in the plugin annotation; as a
 * result, these hook implementations have full control over where and how
 * contextual links are rendered for each display.
merlinofchaos's avatar
merlinofchaos committed
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
 *
 * In addition to attaching the contextual links to the passed-in array (via
 * the standard #contextual_links property), this function also attaches
 * additional information via the #views_contextual_links_info property. This
 * stores an array whose keys are the names of each module that provided
 * views-related contextual links (same as the keys of the #contextual_links
 * array itself) and whose values are themselves arrays whose keys ('location',
 * 'view_name', and 'view_display_id') store the location, name of the view,
 * and display ID that were passed in to this function. This allows you to
 * access information about the contextual links and how they were generated in
 * a variety of contexts where you might be manipulating the renderable array
 * later on (for example, alter hooks which run later during the same page
 * request).
 *
 * @param $render_element
 *   The renderable array to which contextual links will be added. This array
 *   should be suitable for passing in to drupal_render() and will normally
 *   contain a representation of the view display whose contextual links are
 *   being requested.
 * @param $location
 *   The location in which the calling function intends to render the view and
 *   its contextual links. The core system supports three options for this
 *   parameter:
 *   - 'block': Used when rendering a block which contains a view. This
 *     retrieves any contextual links intended to be attached to the block
 *     itself.
 *   - 'page': Used when rendering the main content of a page which contains a
 *     view. This retrieves any contextual links intended to be attached to the
 *     page itself (for example, links which are displayed directly next to the
 *     page title).
 *   - 'view': Used when rendering the view itself, in any context. This
 *     retrieves any contextual links intended to be attached directly to the
 *     view.
 *   If you are rendering a view and its contextual links in another location,
 *   you can pass in a different value for this parameter. However, you will
539
540
541
 *   also need to set 'contextual_links_locations' in your plugin annotation to
 *   indicate which view displays support having their contextual links
 *   rendered in the location you have defined.
merlinofchaos's avatar
merlinofchaos committed
542
543
544
545
546
 * @param $view
 *   The view whose contextual links will be added.
 * @param $display_id
 *   The ID of the display within $view whose contextual links will be added.
 *
547
 * @see \Drupal\views\Plugin\block\block\ViewsBlock::addContextualLinks()
merlinofchaos's avatar
merlinofchaos committed
548
549
550
 * @see views_page_alter()
 * @see template_preprocess_views_view()
 */
551
function views_add_contextual_links(&$render_element, $location, ViewExecutable $view, $display_id) {
merlinofchaos's avatar
merlinofchaos committed
552
553
  // Do not do anything if the view is configured to hide its administrative
  // links.
554
  if ($view->getShowAdminLinks()) {
merlinofchaos's avatar
merlinofchaos committed
555
556
557
    // Also do not do anything if the display plugin has not defined any
    // contextual links that are intended to be displayed in the requested
    // location.
558
    $plugin_id = $view->displayHandlers->get($display_id)->getPluginId();
559
    $plugin = Views::pluginManager('display')->getDefinition($plugin_id);
560
    // If contextual_links_locations are not set, provide a sane default. (To
merlinofchaos's avatar
merlinofchaos committed
561
    // avoid displaying any contextual links at all, a display plugin can still
562
    // set 'contextual_links_locations' to, e.g., {""}.)
563
564
565

    if (!isset($plugin['contextual_links_locations'])) {
      $plugin['contextual_links_locations'] = array('view');
566
    }
567
    elseif ($plugin['contextual_links_locations'] == array() || $plugin['contextual_links_locations'] == array('')) {
568
569
      $plugin['contextual_links_locations'] = array();
    }
570
571
572
573
    else {
      $plugin += array('contextual_links_locations' => array('view'));
    }

merlinofchaos's avatar
merlinofchaos committed
574
    // On exposed_forms blocks contextual links should always be visible.
575
    $plugin['contextual_links_locations'][] = 'exposed_filter';
576
577
    $has_links = !empty($plugin['contextual links']) && !empty($plugin['contextual_links_locations']);
    if ($has_links && in_array($location, $plugin['contextual_links_locations'])) {
merlinofchaos's avatar
merlinofchaos committed
578
579
580
581
582
583
      foreach ($plugin['contextual links'] as $module => $link) {
        $args = array();
        $valid = TRUE;
        if (!empty($link['argument properties'])) {
          foreach ($link['argument properties'] as $property) {
            // If the plugin is trying to create an invalid contextual link
584
585
586
587
            // (for example, "path/to/{$view->storage->property}", where
            // $view->storage->{property} does not exist), we cannot construct
            // the link, so we skip it.
            if (!property_exists($view->storage, $property)) {
merlinofchaos's avatar
merlinofchaos committed
588
589
590
591
              $valid = FALSE;
              break;
            }
            else {
592
              $args[] = $view->storage->{$property};
merlinofchaos's avatar
merlinofchaos committed
593
594
595
596
597
598
            }
          }
        }
        // If the link was valid, attach information about it to the renderable
        // array.
        if ($valid) {
599
600
601
602
603
604
605
606
607
          $render_element['#views_contextual_links'] = TRUE;
          $render_element['#contextual_links'][$module] = array(
            $link['parent path'],
            $args,
            array(
              'location' => $location,
              'name' => $view->storage->id(),
              'display_id' => $display_id,
            )
merlinofchaos's avatar
merlinofchaos committed
608
609
610
611
612
613
614
615
          );
        }
      }
    }
  }
}

/**
616
 * Prepares a list of language names.
merlinofchaos's avatar
merlinofchaos committed
617
 *
618
 * This is a wrapper around language_list to return a plain key value array.
merlinofchaos's avatar
merlinofchaos committed
619
 *
620
621
622
623
624
 * @param string $field
 *   The field of the language object which should be used as the value of the
 *   array.
 * @param int $flags
 *   (optional) Specifies the state of the languages that have to be returned.
625
626
 *   It can be: Language::STATE_CONFIGURABLE, Language::STATE_LOCKED,
 *   Language::STATE_ALL.
627
628
629
 *
 * @return array
 *   An array of language names (or $field) keyed by the langcode.
merlinofchaos's avatar
merlinofchaos committed
630
631
632
 *
 * @see locale_language_list()
 */
633
function views_language_list($field = 'name', $flags = Language::STATE_ALL) {
634
  $languages = language_list($flags);
merlinofchaos's avatar
merlinofchaos committed
635
636
  $list = array();
  foreach ($languages as $language) {
637
    $list[$language->langcode] = ($field == 'name') ? t($language->name) : $language->$field;
merlinofchaos's avatar
merlinofchaos committed
638
639
640
641
642
643
644
645
  }
  return $list;
}

/**
 * Implements hook_field_create_instance.
 */
function views_field_create_instance($instance) {
646
647
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
648
649
650
651
652
}
/**
 * Implements hook_field_update_instance.
 */
function views_field_update_instance($instance, $prior_instance) {
653
654
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
655
656
657
658
659
660
}

/**
 * Implements hook_field_delete_instance.
 */
function views_field_delete_instance($instance) {
661
662
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
663
664
665
666
667
668
}

/**
 * Invalidate the views cache, forcing a rebuild on the next grab of table data.
 */
function views_invalidate_cache() {
669
  // Clear the views cache.
670
  cache('views_info')->deleteAll();
671
672

  // Clear the page and block cache.
673
  Cache::deleteTags(array('content' => TRUE));
674
675

  // Set the menu as needed to be rebuilt.
676
  state()->set('menu_rebuild_needed', TRUE);
677

678
679
  $module_handler = Drupal::moduleHandler();

680
681
682
683
684
685
686
  // Set the router to be rebuild.
  // @todo Figure out why the cache rebuild is trigged but the route table
  //   does not exist yet.
  if (db_table_exists('router')) {
    Drupal::service('router.builder')->rebuild();
  }

687
  // Invalidate the block cache to update views block derivatives.
688
689
  if ($module_handler->moduleExists('block')) {
    Drupal::service('plugin.manager.block')->clearCachedDefinitions();
690
691
  }

692
  // Allow modules to respond to the Views cache being cleared.
693
  $module_handler->invokeAll('views_invalidate_cache');
merlinofchaos's avatar
merlinofchaos committed
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
}

/**
 * Set the current 'page view' that is being displayed so that it is easy
 * for other modules or the theme to identify.
 */
function &views_set_page_view($view = NULL) {
  static $cache = NULL;
  if (isset($view)) {
    $cache = $view;
  }

  return $cache;
}

/**
710
 * Find out what, if any, page view is currently in use.
merlinofchaos's avatar
merlinofchaos committed
711
 *
712
713
714
715
 * Note that this returns a reference, so be careful! You can unintentionally
 * modify the $view object.
 *
 * @return \Drupal\views\ViewExecutable
merlinofchaos's avatar
merlinofchaos committed
716
717
718
719
720
721
722
723
724
725
 *   A fully formed, empty $view object.
 */
function &views_get_page_view() {
  return views_set_page_view();
}

/**
 * Set the current 'current view' that is being built/rendered so that it is
 * easy for other modules or items in drupal_eval to identify
 *
726
 * @return Drupal\views\ViewExecutable
merlinofchaos's avatar
merlinofchaos committed
727
728
729
730
731
732
733
734
735
736
737
 */
function &views_set_current_view($view = NULL) {
  static $cache = NULL;
  if (isset($view)) {
    $cache = $view;
  }

  return $cache;
}

/**
738
 * Find out what, if any, current view is currently in use.
merlinofchaos's avatar
merlinofchaos committed
739
 *
740
741
742
743
 * Note that this returns a reference, so be careful! You can unintentionally
 * modify the $view object.
 *
 * @return \Drupal\views\ViewExecutable
jhodgdon's avatar
jhodgdon committed
744
 *   The current view object.
merlinofchaos's avatar
merlinofchaos committed
745
746
747
748
749
 */
function &views_get_current_view() {
  return views_set_current_view();
}

750
751
752
753
/**
 * Implements hook_hook_info().
 */
function views_hook_info() {
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
  $hooks = array();

  $hooks += array_fill_keys(array(
    'views_data',
    'views_data_alter',
    'views_analyze',
    'views_invalidate_cache',
  ), array('group' => 'views'));

  $hooks += array_fill_keys(array(
    'views_query_substitutions',
    'views_form_substitutions',
    'views_pre_view',
    'views_pre_build',
    'views_post_build',
    'views_pre_execute',
    'views_post_execute',
    'views_pre_render',
    'views_post_render',
    'views_query_alter',
  ), array('group' => 'views_execution'));
775
776

  return $hooks;
merlinofchaos's avatar
merlinofchaos committed
777
778
779
}

/**
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
 * Implements hook_library_info().
 */
function views_library_info() {
  $path = drupal_get_path('module', 'views') . '/js';
  $libraries['views.ajax'] = array(
    'title' => 'Views AJAX',
    'version' => VERSION,
    'js' => array(
      "$path/base.js" => array('group' => JS_DEFAULT),
      "$path/ajax_view.js" => array('group' => JS_DEFAULT),
    ),
    'dependencies' => array(
      array('system', 'jquery'),
      array('system', 'drupal'),
      array('system', 'drupalSettings'),
      array('system', 'jquery.once'),
      array('system', 'jquery.form'),
      array('system', 'drupal.ajax'),
    ),
  );
800
801
802
803
804
805
806
807
808
809
810
  $libraries['views.contextual-links'] = array(
    'title' => 'Views Contextual links',
    'version' => VERSION,
    'js' => array(
      "$path/views-contextual.js" => array('group' => JS_LIBRARY, 'weight' => -10),
    ),
    'dependencies' => array(
      array('system', 'jquery'),
      array('system', 'drupal'),
    ),
  );
merlinofchaos's avatar
merlinofchaos committed
811

812
  return $libraries;
merlinofchaos's avatar
merlinofchaos committed
813
814
815
816
817
}

/**
 * Fetch a handler from the data cache.
 *
818
819
820
821
822
823
824
825
 * @param array $item
 *   An associative array representing the handler to be retrieved:
 *   - table: The name of the table containing the handler.
 *   - field: The name of the field the handler represents.
 *   - optional: (optional) Whether or not this handler is optional. If a
 *     handler is missing and not optional, a debug message will be displayed.
 *     Defaults to FALSE.
 * @param string $type
merlinofchaos's avatar
merlinofchaos committed
826
 *   The type of handler. i.e, sort, field, argument, filter, relationship
827
828
829
 * @param string|null $override
 *   (optional) Override the actual handler object with this plugin ID. Used for
 *   aggregation when the handler is redirected to the aggregation handler.
merlinofchaos's avatar
merlinofchaos committed
830
831
832
833
 *
 * @return views_handler
 *   An instance of a handler object. May be views_handler_broken.
 */
834
835
836
837
function views_get_handler($item, $type, $override = NULL) {
  $table = $item['table'];
  $field = $item['field'];
  $optional = isset($item['optional']) ? $item['optional'] : FALSE;
838
  // Get the plugin manager for this type.
839
840
  $manager = Views::pluginManager($type);;
  $data = Views::viewsData()->get($table);
merlinofchaos's avatar
merlinofchaos committed
841

842
  if (isset($data[$field][$type])) {
843
    $definition = $data[$field][$type];
844
    foreach (array('group', 'title', 'title short', 'help', 'real field', 'real table') as $key) {
845
846
847
848
849
850
851
852
853
854
855
856
857
      if (!isset($definition[$key])) {
        // First check the field level
        if (!empty($data[$field][$key])) {
          $definition[$key] = $data[$field][$key];
        }
        // Then if that doesn't work, check the table level
        elseif (!empty($data['table'][$key])) {
          $definition[$key] = $data['table'][$key];
        }
      }
    }

    // @todo This is crazy. Find a way to remove the override functionality.
858
    $plugin_id = $override ?: $definition['id'];
859
    // Try to use the overridden handler.
860
    try {
861
      return $manager->createInstance($plugin_id, $definition);
862
863
    }
    catch (PluginException $e) {
864
865
866
867
868
869
870
      // If that fails, use the original handler.
      try {
        return $manager->createInstance($definition['id'], $definition);
      }
      catch (PluginException $e) {
        // Deliberately empty, this case is handled generically below.
      }
871
    }
merlinofchaos's avatar
merlinofchaos committed
872
873
  }

874
875
876
877
  if (!$optional) {
    debug(t("Missing handler: @table @field @type", array('@table' => $table, '@field' => $field, '@type' => $type)));
  }

878
  // Finally, use the 'broken' handler.
879
  return $manager->createInstance('broken');
merlinofchaos's avatar
merlinofchaos committed
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
}

/**
 * Fetch a list of all base tables available
 *
 * @param $type
 *   Either 'display', 'style' or 'row'
 * @param $key
 *   For style plugins, this is an optional type to restrict to. May be 'normal',
 *   'summary', 'feed' or others based on the neds of the display.
 * @param $base
 *   An array of possible base tables.
 *
 * @return
 *   A keyed array of in the form of 'base_table' => 'Description'.
 */
function views_fetch_plugin_names($type, $key = NULL, $base = array()) {
897
  $definitions = Views::pluginManager($type)->getDefinitions();
898
  $plugins = array();
merlinofchaos's avatar
merlinofchaos committed
899

aspilicious's avatar
aspilicious committed
900
  foreach ($definitions as $id => $plugin) {
901
902
    // Skip plugins that don't conform to our key, if they have one.
    if ($key && isset($plugin['display_types']) && !in_array($key, $plugin['display_types'])) {
903
904
      continue;
    }
905

906
    if (empty($plugin['no_ui']) && (empty($base) || empty($plugin['base']) || array_intersect($base, $plugin['base']))) {
aspilicious's avatar
aspilicious committed
907
      $plugins[$id] = $plugin['title'];
merlinofchaos's avatar
merlinofchaos committed
908
909
910
    }
  }

911
912
913
  if (!empty($plugins)) {
    asort($plugins);
    return $plugins;
merlinofchaos's avatar
merlinofchaos committed
914
  }
915

916
  return $plugins;
merlinofchaos's avatar
merlinofchaos committed
917
918
}

919
/**
920
921
922
 * Gets all the views plugin definitions.
 *
 * @return array
923
 *   An array of plugin definitions for all types.
924
 */
925
926
927
function views_get_plugin_definitions() {
  $plugins = array();
  foreach (ViewExecutable::getPluginTypes() as $plugin_type) {
928
    $plugins[$plugin_type] = Views::pluginManager($plugin_type)->getDefinitions();
929
930
  }

931
  return $plugins;
932
933
}

934
935
936
937
/**
 * Get enabled display extenders.
 */
function views_get_enabled_display_extenders() {
938
  $enabled = array_filter((array) config('views.settings')->get('display_extenders'));
939

940
  return drupal_map_assoc($enabled);
941
942
}

merlinofchaos's avatar
merlinofchaos committed
943
944
945
946
/**
 * Return a list of all views and display IDs that have a particular
 * setting in their display's plugin settings.
 *
947
948
949
950
951
 * @param string $type
 *   A flag from the display plugin definitions (e.g, 'uses_hook_menu').
 *
 * @return array
 *   A list of arrays containing the $view and $display_id.
merlinofchaos's avatar
merlinofchaos committed
952
953
954
955
956
957
958
959
 * @code
 * array(
 *   array($view, $display_id),
 *   array($view, $display_id),
 * );
 * @endcode
 */
function views_get_applicable_views($type) {
960
  // Get all display plugins which provides the type.
961
  $display_plugins = Views::pluginManager('display')->getDefinitions();
962
963
964
965
  $ids = array();
  foreach ($display_plugins as $id => $definition) {
    if (!empty($definition[$type])) {
      $ids[$id] = $id;
merlinofchaos's avatar
merlinofchaos committed
966
    }
967
  }
merlinofchaos's avatar
merlinofchaos committed
968

969
  $entity_ids = Drupal::service('entity.query')->get('view')
970
    ->condition('status', TRUE)
971
972
    ->condition("display.*.display_plugin", $ids, 'IN')
    ->execute();
merlinofchaos's avatar
merlinofchaos committed
973

974
  $result = array();
975
  foreach (Drupal::entityManager()->getStorageController('view')->load($entity_ids) as $view) {
976
977
    // Check each display to see if it meets the criteria and is enabled.
    $executable = $view->get('executable');
978
    $executable->initDisplay();
979
980
981
    foreach ($executable->displayHandlers as $id => $handler) {
      if (!empty($handler->definition[$type]) && $handler->isEnabled()) {
        $result[] = array($executable, $id);
merlinofchaos's avatar
merlinofchaos committed
982
983
984
      }
    }
  }
985

merlinofchaos's avatar
merlinofchaos committed
986
987
988
989
  return $result;
}

/**
990
 * Returns an array of all views as fully loaded $view objects.
merlinofchaos's avatar
merlinofchaos committed
991
 */
992
function views_get_all_views() {
993
  return Drupal::entityManager()->getStorageController('view')->load();
994
995
}

merlinofchaos's avatar
merlinofchaos committed
996
997
998
999
/**
 * Returns an array of all enabled views, as fully loaded $view objects.
 */
function views_get_enabled_views() {
1000
  $query = Drupal::entityQuery('view')
1001
1002
1003
1004
    ->condition('status', TRUE)
    ->execute();

  return entity_load_multiple('view', $query);
merlinofchaos's avatar
merlinofchaos committed
1005
1006
1007
1008
1009
1010
}

/**
 * Returns an array of all disabled views, as fully loaded $view objects.
 */
function views_get_disabled_views() {
1011
  $query = Drupal::entityQuery('view')
1012
1013
1014
1015
    ->condition('status', FALSE)
    ->execute();

  return entity_load_multiple('view', $query);
merlinofchaos's avatar
merlinofchaos committed
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
}

/**
 * Return an array of view as options array, that can be used by select,
 * checkboxes and radios as #options.
 *
 * @param bool $views_only
 *  If TRUE, only return views, not displays.
 * @param string $filter
 *  Filters the views on status. Can either be 'all' (default), 'enabled' or
 *  'disabled'
 * @param  mixed $exclude_view
 *  view or current display to exclude
 *  either a
1030
 *  - views object (containing $exclude_view->storage->name and $exclude_view->current_display)
merlinofchaos's avatar
merlinofchaos committed
1031
1032
1033
1034
1035
 *  - views name as string:  e.g. my_view
 *  - views name and display id (separated by ':'): e.g. my_view:default
 * @param bool $optgroup
 *  If TRUE, returns an array with optgroups for each view (will be ignored for
 *  $views_only = TRUE). Can be used by select
1036
1037
 * @param bool $sort
 *  If TRUE, the list of views is sorted ascending.
merlinofchaos's avatar
merlinofchaos committed
1038
1039
1040
1041
1042
 *
 * @return array
 *  an associative array for use in select.
 *  - key: view name and display id separated by ':', or the view name only
 */
1043
function views_get_views_as_options($views_only = FALSE, $filter = 'all', $exclude_view = NULL, $optgroup = FALSE, $sort = FALSE) {
merlinofchaos's avatar
merlinofchaos committed
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062

  // Filter the big views array.
  switch ($filter) {
    case 'all':
    case 'disabled':
    case 'enabled':
      $func = "views_get_{$filter}_views";
      $views = $func();
      break;
    default:
      return array();
  }

  // Prepare exclude view strings for comparison.
  if (empty($exclude_view)) {
    $exclude_view_name = '';
    $exclude_view_display = '';
  }
  elseif (is_object($exclude_view)) {
1063
    $exclude_view_name = $exclude_view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
1064
1065
1066
    $exclude_view_display = $exclude_view->current_display;
  }
  else {
1067
1068
1069
    // Append a ':' to the $exclude_view string so we always have more than one
    // item to explode.
    list($exclude_view_name, $exclude_view_display) = explode(':', "$exclude_view:");
merlinofchaos's avatar
merlinofchaos committed
1070
1071
1072
1073
  }

  $options = array();
  foreach ($views as $view) {
1074
    $id = $view->id();
merlinofchaos's avatar
merlinofchaos committed
1075
    // Return only views.
1076
    if ($views_only && $id != $exclude_view_name) {
1077
      $options[$id] = $view->label();
merlinofchaos's avatar
merlinofchaos committed
1078
1079
1080
    }
    // Return views with display ids.
    else {
1081
      foreach ($view->get('display') as $display_id => $display) {
1082
        if (!($id == $exclude_view_name && $display_id == $exclude_view_display)) {
merlinofchaos's avatar
merlinofchaos committed
1083
          if ($optgroup) {
1084
            $options[$id][$id . ':' . $display['id']] = t('@view : @display', array('@view' => $id, '@display' => $display['id']));
merlinofchaos's avatar
merlinofchaos committed
1085
1086
          }
          else {
1087
            $options[$id . ':' . $display['id']] = t('View: @view - Display: @display', array('@view' => $id, '@display' => $display['id']));
merlinofchaos's avatar
merlinofchaos committed
1088
1089
1090
1091
1092
          }
        }
      }
    }
  }
1093
1094
1095
  if ($sort) {
    ksort($options);
  }
merlinofchaos's avatar
merlinofchaos committed
1096
1097
1098
1099
  return $options;
}

/**
dawehner's avatar
dawehner committed
1100
1101
 * Returns whether the view is enabled.
 *
1102
 * @param Drupal\views\Plugin\Core\Entity\View $view
xjm's avatar
xjm committed
1103
 *   The view object to check.
dawehner's avatar
dawehner committed
1104
1105
1106
 *
 * @return bool
 *   Returns TRUE if a view is enabled, FALSE otherwise.
merlinofchaos's avatar
merlinofchaos committed
1107
 */
1108
function views_view_is_enabled(View $view) {
1109
  return $view->status();
merlinofchaos's avatar
merlinofchaos committed
1110
1111
1112
}

/**
dawehner's avatar
dawehner committed
1113
1114
 * Returns whether the view is disabled.
 *
1115
 * @param Drupal\views\Plugin\Core\Entity\View $view
xjm's avatar
xjm committed
1116
 *   The view object to check.
dawehner's avatar
dawehner committed
1117
1118
1119
 *
 * @return bool
 *   Returns TRUE if a view is disabled, FALSE otherwise.
merlinofchaos's avatar
merlinofchaos committed
1120
 */
1121
function views_view_is_disabled(View $view) {
1122
  return !$view->status();
merlinofchaos's avatar
merlinofchaos committed
1123
1124
}

1125
/**
1126
 * Enables and saves a view.
1127
 *
1128
1129
 * @param Drupal\views\Plugin\Core\Entity\View $view
 *   The View object to disable.
1130
 */
1131
function views_enable_view(View $view) {
1132
  $view->enable()->save();
1133
1134
1135
}

/**
1136
 * Disables and saves a view.
1137
 *
1138
1139
 * @param Drupal\views\Plugin\Core\Entity\View $view
 *   The View object to disable.
1140
 */
1141
function views_disable_view(View $view) {
1142
  $view->disable()->save();
1143
1144
}

merlinofchaos's avatar
merlinofchaos committed
1145
/**
xjm's avatar
xjm committed
1146
 * Loads a view from configuration.
merlinofchaos's avatar
merlinofchaos committed
1147
 *
xjm's avatar
xjm committed
1148
 * @param string $name
merlinofchaos's avatar
merlinofchaos committed
1149
 *   The name of the view.
xjm's avatar
xjm committed
1150
 *
1151
 * @return Drupal\views\ViewExecutable
dawehner's avatar
dawehner committed
1152
 *   A reference to the $view object.
merlinofchaos's avatar
merlinofchaos committed
1153
 */
1154
1155
function views_get_view($name) {
  $view = entity_load('view', $name);
merlinofchaos's avatar
merlinofchaos committed
1156
  if ($view) {
1157
    return $view->get('executable');
merlinofchaos's avatar
merlinofchaos committed
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
  }
}

/**
 * Returns TRUE if the passed-in view contains handlers with views form
 * implementations, FALSE otherwise.
 */
function views_view_has_form_elements($view) {
  foreach ($view->field as $field) {
    if (property_exists($field, 'views_form_callback') || method_exists($field, 'views_form')) {
      return TRUE;
    }
  }
  $area_handlers = array_merge(array_values($view->header), array_values($view->footer));
  $empty = empty($view->result);
  foreach ($area_handlers as $area) {
    if (method_exists($area, 'views_form') && !$area->views_form_empty($empty)) {
      return TRUE;
    }
  }
  return FALSE;
}

/**
 * This is the entry function. Just gets the form for the current step.
 * The form is always assumed to be multistep, even if it has only one
 * step (the default 'views_form_views_form' step). That way it is actually
 * possible for modules to have a multistep form if they need to.
 */
1187
function views_form($form, &$form_state, ViewExecutable $view, $output) {
merlinofchaos's avatar
merlinofchaos committed
1188
1189
1190
1191
1192
1193
1194
1195
  $form_state['step'] = isset($form_state['step']) ? $form_state['step'] : 'views_form_views_form';
  // Cache the built form to prevent it from being rebuilt prior to validation
  // and submission, which could lead to data being processed incorrectly,
  // because the views rows (and thus, the form elements as well) have changed
  // in the meantime.
  $form_state['cache'] = TRUE;

  $form = array();
1196
  $query = drupal_get_query_parameters();
1197
  $form['#action'] = url($view->getUrl(), array('query' => $query));
merlinofchaos's avatar
merlinofchaos committed
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
  // Tell the preprocessor whether it should hide the header, footer, pager...
  $form['show_view_elements'] = array(
    '#type' => 'value',
    '#value' => ($form_state['step'] == 'views_form_views_form') ? TRUE : FALSE,
  );

  $form = $form_state['step']($form, $form_state, $view, $output);
  return $form;
}

/**
 * Callback for the main step of a Views form.
 * Invoked by views_form().
 */
1212
function views_form_views_form($form, &$form_state, ViewExecutable $view, $output) {
merlinofchaos's avatar
merlinofchaos committed
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
  $form['#prefix'] = '<div class="views-form">';
  $form['#suffix'] = '</div>';
  $form['#theme'] = 'views_form_views_form';
  $form['#validate'][] = 'views_form_views_form_validate';
  $form['#submit'][] = 'views_form_views_form_submit';

  // Add the output markup to the form array so that it's included when the form
  // array is passed to the theme function.
  $form['output'] = array(
    '#type' => 'markup',
    '#markup' => $output,
    // This way any additional form elements will go before the view
    // (below the exposed widgets).
    '#weight' => 50,
  );

1229
1230
1231
1232
1233
1234
1235
1236
  $form['actions'] = array(
    '#type' => 'actions',
  );
  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save'),
  );

merlinofchaos's avatar
merlinofchaos committed
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
  $substitutions = array();
  foreach ($view->field as $field_name => $field) {
    $form_element_name = $field_name;
    if (method_exists($field, 'form_element_name')) {
      $form_element_name = $field->form_element_name();
    }
    $method_form_element_row_id_exists = FALSE;
    if (method_exists($field, 'form_element_row_id')) {
      $method_form_element_row_id_exists = TRUE;
    }

    // If the field provides a views form, allow it to modify the $form array.
    $has_form = FALSE;
    if (property_exists($field, 'views_form_callback')) {
      $callback = $field->views_form_callback;
      $callback($view, $field, $form, $form_state);
      $has_form = TRUE;
    }
    elseif (method_exists($field, 'views_form')) {
      $field->views_form($form, $form_state);
      $has_form = TRUE;
    }

    // Build the substitutions array for use in the theme function.
    if ($has_form) {
      foreach ($view->result as $row_id => $row) {
        if ($method_form_element_row_id_exists) {
          $form_element_row_id = $field->form_element_row_id($row_id);
        }
        else {
          $form_element_row_id = $row_id;
        }

        $substitutions[] = array(
          'placeholder' => '<!--form-item-' . $form_element_name . '--' . $form_element_row_id . '-->',
          'field_name' => $form_element_name,
          'row_id' => $form_element_row_id,
        );
      }
    }
  }

  // Give the area handlers a chance to extend the form.
  $area_handlers = array_merge(array_values($view->header), array_values($view->footer));
  $empty = empty($view->result);
  foreach ($area_handlers as $area) {
    if (method_exists($area, 'views_form') && !$area->views_form_empty($empty)) {
      $area->views_form($form, $form_state);
    }
  }

  $form['#substitutions'] = array(
    '#type' => 'value',
    '#value' => $substitutions,
  );

  return $form;
}

/**
 * Validate handler for the first step of the views form.
 * Calls any existing views_form_validate functions located
 * on the views fields.
 */
function views_form_views_form_validate($form, &$form_state) {
  $view = $form_state['build_info']['args'][0];

  // Call the validation method on every field handler that has it.
  foreach ($view->field as $field_name => $field) {
    if (method_exists($field, 'views_form_validate')) {
      $field->views_form_validate($form, $form_state);
    }
  }

  // Call the validate method on every area handler that has it.
  foreach (array('header', 'footer') as $area) {
    foreach ($view->{$area} as $area_name => $area_handler) {
      if (method_exists($area_handler, 'views_form_validate')) {
        $area_handler->views_form_validate($form, $form_state);
      }
    }
  }
}

/**
 * Submit handler for the first step of the views form.
 * Calls any existing views_form_submit functions located
 * on the views fields.
 */
function views_form_views_form_submit($form, &$form_state) {
  $view = $form_state['build_info']['args'][0];

  // Call the submit method on every field handler that has it.
  foreach ($view->field as $field_name => $field) {
    if (method_exists($field, 'views_form_submit')) {
      $field->views_form_submit($form, $form_state);
    }
  }

  // Call the submit method on every area handler that has it.
  foreach (array('header', 'footer') as $area) {
    foreach ($view->{$area} as $area_name => $area_handler) {
      if (method_exists($area_handler, 'views_form_submit')) {
        $area_handler->views_form_submit($form, $form_state);
      }
    }
  }
}

/**
 * Form builder for the exposed widgets form.
 *
 * Be sure that $view and $display are references.
 */
function views_exposed_form($form, &$form_state) {
  // Don't show the form when batch operations are in progress.
  if ($batch = batch_get() && isset($batch['current_set'])) {
    return array(
      // Set the theme callback to be nothing to avoid errors in template_preprocess_views_exposed_form().
      '#theme' => '',
    );
  }

  // Make sure that we validate because this form might be submitted
  // multiple times per page.
  $form_state['must_validate'] = TRUE;
  $view = &$form_state['view'];
  $display = &$form_state['display'];

1366
  $form_state['input'] = $view->getExposedInput();
merlinofchaos's avatar
merlinofchaos committed
1367
1368
1369
1370

  // Let form plugins know this is for exposed widgets.
  $form_state['exposed'] = TRUE;
  // Check if the form was already created
1371
  if ($cache = views_exposed_form_cache($view->storage->id(), $view->current_display)) {
merlinofchaos's avatar
merlinofchaos committed
1372
1373
1374
1375
1376
1377
1378
1379
    return $cache;
  }

  $form['#info'] = array();

  // Go through each handler and let it generate its exposed widget.
  foreach ($view->display_handler->handlers as $type => $value) {
    foreach ($view->$type as $id => $handler) {
1380
      if ($handler->canExpose() && $handler->isExposed()) {
1381
1382
1383
1384
1385
        // Grouped exposed filters have their own forms.
        // Instead of render the standard exposed form, a new Select or
        // Radio form field is rendered with the available groups.
        // When an user choose an option the selected value is split
        // into the operator and value that the item represents.
1386
        if ($handler->isAGroup()) {
1387
1388
1389
1390
          $handler->group_form($form, $form_state);
          $id = $handler->options['group_info']['identifier'];
        }
        else {
1391
          $handler->buildExposedForm($form, $form_state);
1392
        }
1393
        if ($info = $handler->exposedInfo()) {
merlinofchaos's avatar
merlinofchaos committed
1394
1395
1396
1397
1398
1399
1400
          $form['#info']["$type-$id"] = $info;
        }
      }
    }
  }

  $form['submit'] = array(
1401
1402
    // Prevent from showing up in $_GET.
    '#name' => '',
merlinofchaos's avatar
merlinofchaos committed
1403
1404
    '#type' => 'submit',
    '#value' => t('Apply'),
1405
    '#id' => drupal_html_id('edit-submit-' . $view->storage->id()),
merlinofchaos's avatar
merlinofchaos committed
1406
1407
  );

1408
  $form['#action'] = url($view->display_handler->getUrl());
merlinofchaos's avatar
merlinofchaos committed
1409
  $form['#theme'] = views_theme_functions('views_exposed_form', $view, $display);
1410
  $form['#id'] = drupal_clean_css_identifier('views_exposed_form-' . check_plain($view->storage->id()) . '-' . check_plain($display['id']));
merlinofchaos's avatar
merlinofchaos committed
1411
1412
1413
1414
1415
1416
//  $form['#attributes']['class'] = array('views-exposed-form');

  $exposed_form_plugin = $form_state['exposed_form_plugin'];
  $exposed_form_plugin->exposed_form_alter($form, $form_state);

  // Save the form
1417
  views_exposed_form_cache($view->storage->id(), $view->current_display, $form);
merlinofchaos's avatar
merlinofchaos committed
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440

  return $form;
}

/**
 * Implement hook_form_alter for the exposed form.
 *
 * Since the exposed form is a GET form, we don't want it to send a wide
 * variety of information.
 */
function views_form_views_exposed_form_alter(&$form, &$form_state) {
  $form['form_build_id']['#access'] = FALSE;
  $form['form_token']['#access'] = FALSE;
  $form['form_id']['#access'] = FALSE;
}

/**
 * Validate handler for exposed filters
 */
function views_exposed_form_validate(&$form, &$form_state) {
  foreach (array('field', 'filter') as $type) {
    $handlers = &$form_state['view']->$type;
    foreach ($handlers as $key => $handler) {
1441
      $handlers[$key]->validateExposed($form, $form_state);
merlinofchaos's avatar
merlinofchaos committed
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
    }
  }
  $exposed_form_plugin = $form_state['exposed_form_plugin'];
  $exposed_form_plugin->exposed_form_validate($form, $form_state);
}

/**
 * Submit handler for exposed filters
 */
function views_exposed_form_submit(&$form, &$form_state) {
  foreach (array('field', 'filter') as $type) {
    $handlers = &$form_state['view']->$type;
    foreach ($handlers as $key => $info) {
1455
      $handlers[$key]->submitExposed($form, $form_state);