cb6381684a4563ae9c0b5e39dbd036786f4a9747
[civicrm-core.git] / CRM / Core / Resources.php
1 <?php
2 /*
3 +--------------------------------------------------------------------+
4 | CiviCRM version 4.5 |
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2014 |
7 +--------------------------------------------------------------------+
8 | This file is a part of CiviCRM. |
9 | |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
11 | under the terms of the GNU Affero General Public License |
12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
13 | |
14 | CiviCRM is distributed in the hope that it will be useful, but |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | See the GNU Affero General Public License for more details. |
18 | |
19 | You should have received a copy of the GNU Affero General Public |
20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
22 | at info[AT]civicrm[DOT]org. If you have questions about the |
23 | GNU Affero General Public License or the licensing of CiviCRM, |
24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
25 +--------------------------------------------------------------------+
26 */
27
28 /**
29 * This class facilitates the loading of resources
30 * such as JavaScript files and CSS files.
31 *
32 * Any URLs generated for resources may include a 'cache-code'. By resetting the
33 * cache-code, one may force clients to re-download resource files (regardless of
34 * any HTTP caching rules).
35 *
36 * TODO: This is currently a thin wrapper over CRM_Core_Region. We
37 * should incorporte services for aggregation, minimization, etc.
38 *
39 * @package CRM
40 * @copyright CiviCRM LLC (c) 2004-2014
41 * $Id$
42 *
43 */
44 class CRM_Core_Resources {
45 const DEFAULT_WEIGHT = 0;
46 const DEFAULT_REGION = 'page-footer';
47
48 /**
49 * We don't have a container or dependency-injection, so use singleton instead
50 *
51 * @var object
52 * @static
53 */
54 private static $_singleton = NULL;
55
56 /**
57 * @var CRM_Extension_Mapper
58 */
59 private $extMapper = NULL;
60
61 /**
62 * @var CRM_Utils_Cache_Interface
63 */
64 private $cache = NULL;
65
66 /**
67 * @var array free-form data tree
68 */
69 protected $settings = array();
70 protected $addedSettings = FALSE;
71
72 /**
73 * @var array of callables
74 */
75 protected $settingsFactories = array();
76
77 /**
78 * @var array ($regionName => bool)
79 */
80 protected $addedCoreResources = array();
81
82 /**
83 * @var array ($regionName => bool)
84 */
85 protected $addedCoreStyles = array();
86
87 /**
88 * @var string a value to append to JS/CSS URLs to coerce cache resets
89 */
90 protected $cacheCode = NULL;
91
92 /**
93 * @var string the name of a setting which persistently stores the cacheCode
94 */
95 protected $cacheCodeKey = NULL;
96
97 /**
98 * @var bool
99 */
100 public $ajaxPopupsEnabled;
101
102 /**
103 * Get or set the single instance of CRM_Core_Resources
104 *
105 * @param $instance CRM_Core_Resources, new copy of the manager
106 * @return CRM_Core_Resources
107 */
108 static public function singleton(CRM_Core_Resources $instance = NULL) {
109 if ($instance !== NULL) {
110 self::$_singleton = $instance;
111 }
112 if (self::$_singleton === NULL) {
113 $sys = CRM_Extension_System::singleton();
114 $cache = new CRM_Utils_Cache_SqlGroup(array(
115 'group' => 'js-strings',
116 'prefetch' => FALSE,
117 ));
118 self::$_singleton = new CRM_Core_Resources(
119 $sys->getMapper(),
120 $cache,
121 CRM_Core_Config::isUpgradeMode() ? NULL : 'resCacheCode'
122 );
123 }
124 return self::$_singleton;
125 }
126
127 /**
128 * Construct a resource manager
129 *
130 * @param CRM_Extension_Mapper $extMapper Map extension names to their base path or URLs.
131 * @param CRM_Utils_Cache_Interface $cache JS-localization cache
132 * @param string|null $cacheCodeKey Random code to append to resource URLs; changing the code forces clients to reload resources
133 */
134 public function __construct($extMapper, $cache, $cacheCodeKey = NULL) {
135 $this->extMapper = $extMapper;
136 $this->cache = $cache;
137 $this->cacheCodeKey = $cacheCodeKey;
138 if ($cacheCodeKey !== NULL) {
139 $this->cacheCode = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, $cacheCodeKey);
140 }
141 if (!$this->cacheCode) {
142 $this->resetCacheCode();
143 }
144 $this->ajaxPopupsEnabled = (bool) CRM_Core_BAO_Setting::getItem(
145 CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'ajaxPopupsEnabled', NULL, TRUE
146 );
147 }
148
149 /**
150 * Add a JavaScript file to the current page using <SCRIPT SRC>.
151 *
152 * @param $ext string, extension name; use 'civicrm' for core
153 * @param $file string, file path -- relative to the extension base dir
154 * @param $weight int, relative weight within a given region
155 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
156 * @param $translate, whether to parse this file for strings enclosed in ts()
157 *
158 * @return CRM_Core_Resources
159 */
160 public function addScriptFile($ext, $file, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION, $translate = TRUE) {
161 if ($translate) {
162 $this->translateScript($ext, $file);
163 }
164 // Look for non-minified version if we are in debug mode
165 if (CRM_Core_Config::singleton()->debug && strpos($file, '.min.js') !== FALSE) {
166 $nonMiniFile = str_replace('.min.js', '.js', $file);
167 if ($this->getPath($ext, $nonMiniFile)) {
168 $file = $nonMiniFile;
169 }
170 }
171 return $this->addScriptUrl($this->getUrl($ext, $file, TRUE), $weight, $region);
172 }
173
174 /**
175 * Add a JavaScript file to the current page using <SCRIPT SRC>.
176 *
177 * @param $url string
178 * @param $weight int, relative weight within a given region
179 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
180 * @return CRM_Core_Resources
181 */
182 public function addScriptUrl($url, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION) {
183 CRM_Core_Region::instance($region)->add(array(
184 'name' => $url,
185 'type' => 'scriptUrl',
186 'scriptUrl' => $url,
187 'weight' => $weight,
188 'region' => $region,
189 ));
190 return $this;
191 }
192
193 /**
194 * Add a JavaScript file to the current page using <SCRIPT SRC>.
195 *
196 * @param $code string, JavaScript source code
197 * @param $weight int, relative weight within a given region
198 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
199 * @return CRM_Core_Resources
200 */
201 public function addScript($code, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION) {
202 CRM_Core_Region::instance($region)->add(array(
203 // 'name' => automatic
204 'type' => 'script',
205 'script' => $code,
206 'weight' => $weight,
207 'region' => $region,
208 ));
209 return $this;
210 }
211
212 /**
213 * Add JavaScript variables to the global CRM object.
214 *
215 * Example:
216 * From the server:
217 * CRM_Core_Resources::singleton()->addSetting(array('myNamespace' => array('foo' => 'bar')));
218 * From javascript:
219 * CRM.myNamespace.foo // "bar"
220 *
221 * @see http://wiki.civicrm.org/confluence/display/CRMDOC/Javascript+Reference
222 *
223 * @param $settings array
224 * @return CRM_Core_Resources
225 */
226 public function addSetting($settings) {
227 $this->settings = $this->mergeSettings($this->settings, $settings);
228 if (!$this->addedSettings) {
229 $resources = $this;
230 CRM_Core_Region::instance('html-header')->add(array(
231 'callback' => function(&$snippet, &$html) use ($resources) {
232 $html .= "\n" . $resources->renderSetting();
233 },
234 'weight' => -100000,
235 ));
236 $this->addedSettings = TRUE;
237 }
238 return $this;
239 }
240
241 /**
242 * Add JavaScript variables to the global CRM object via a callback function.
243 *
244 * @param callable $callable
245 * @return CRM_Core_Resources
246 */
247 public function addSettingsFactory($callable) {
248 // Make sure our callback has been registered
249 $this->addSetting(array());
250 $this->settingsFactories[] = $callable;
251 return $this;
252 }
253
254 /**
255 * Helper fn for addSettingsFactory
256 */
257 public function getSettings() {
258 $result = $this->settings;
259 foreach ($this->settingsFactories as $callable) {
260 $result = $this->mergeSettings($result, $callable());
261 }
262 return $result;
263 }
264
265 /**
266 * @param array $settings
267 * @param array $additions
268 * @return array combination of $settings and $additions
269 */
270 protected function mergeSettings($settings, $additions) {
271 foreach ($additions as $k => $v) {
272 if (isset($settings[$k]) && is_array($settings[$k]) && is_array($v)) {
273 $v += $settings[$k];
274 }
275 $settings[$k] = $v;
276 }
277 return $settings;
278 }
279
280 /**
281 * Helper fn for addSetting
282 * Render JavaScript variables for the global CRM object.
283 *
284 * @return string
285 */
286 public function renderSetting() {
287 $js = 'var CRM = ' . json_encode($this->getSettings()) . ';';
288 return sprintf("<script type=\"text/javascript\">\n%s\n</script>\n", $js);
289 }
290
291 /**
292 * Add translated string to the js CRM object.
293 * It can then be retrived from the client-side ts() function
294 * Variable substitutions can happen from client-side
295 *
296 * Note: this function rarely needs to be called directly and is mostly for internal use.
297 * @see CRM_Core_Resources::addScriptFile which automatically adds translated strings from js files
298 *
299 * Simple example:
300 * // From php:
301 * CRM_Core_Resources::singleton()->addString('Hello');
302 * // The string is now available to javascript code i.e.
303 * ts('Hello');
304 *
305 * Example with client-side substitutions:
306 * // From php:
307 * CRM_Core_Resources::singleton()->addString('Your %1 has been %2');
308 * // ts() in javascript works the same as in php, for example:
309 * ts('Your %1 has been %2', {1: objectName, 2: actionTaken});
310 *
311 * NOTE: This function does not work with server-side substitutions
312 * (as this might result in collisions and unwanted variable injections)
313 * Instead, use code like:
314 * CRM_Core_Resources::singleton()->addSetting(array('myNamespace' => array('myString' => ts('Your %1 has been %2', array(subs)))));
315 * And from javascript access it at CRM.myNamespace.myString
316 *
317 * @param $text string|array
318 * @return CRM_Core_Resources
319 */
320 public function addString($text) {
321 foreach ((array) $text as $str) {
322 $translated = ts($str);
323 // We only need to push this string to client if the translation
324 // is actually different from the original
325 if ($translated != $str) {
326 $this->addSetting(array('strings' => array($str => $translated)));
327 }
328 }
329 return $this;
330 }
331
332 /**
333 * Add a CSS file to the current page using <LINK HREF>.
334 *
335 * @param $ext string, extension name; use 'civicrm' for core
336 * @param $file string, file path -- relative to the extension base dir
337 * @param $weight int, relative weight within a given region
338 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
339 * @return CRM_Core_Resources
340 */
341 public function addStyleFile($ext, $file, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION) {
342 return $this->addStyleUrl($this->getUrl($ext, $file, TRUE), $weight, $region);
343 }
344
345 /**
346 * Add a CSS file to the current page using <LINK HREF>.
347 *
348 * @param $url string
349 * @param $weight int, relative weight within a given region
350 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
351 * @return CRM_Core_Resources
352 */
353 public function addStyleUrl($url, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION) {
354 CRM_Core_Region::instance($region)->add(array(
355 'name' => $url,
356 'type' => 'styleUrl',
357 'styleUrl' => $url,
358 'weight' => $weight,
359 'region' => $region,
360 ));
361 return $this;
362 }
363
364 /**
365 * Add a CSS content to the current page using <STYLE>.
366 *
367 * @param $code string, CSS source code
368 * @param $weight int, relative weight within a given region
369 * @param $region string, location within the file; 'html-header', 'page-header', 'page-footer'
370 * @return CRM_Core_Resources
371 */
372 public function addStyle($code, $weight = self::DEFAULT_WEIGHT, $region = self::DEFAULT_REGION) {
373 CRM_Core_Region::instance($region)->add(array(
374 // 'name' => automatic
375 'type' => 'style',
376 'style' => $code,
377 'weight' => $weight,
378 'region' => $region,
379 ));
380 return $this;
381 }
382
383 /**
384 * Determine file path of a resource provided by an extension
385 *
386 * @param $ext string, extension name; use 'civicrm' for core
387 * @param $file string, file path -- relative to the extension base dir
388 *
389 * @return bool|string (string|bool), full file path or FALSE if not found
390 */
391 public function getPath($ext, $file) {
392 // TODO consider caching results
393 $path = $this->extMapper->keyToBasePath($ext) . '/' . $file;
394 if (is_file($path)) {
395 return $path;
396 }
397 return FALSE;
398 }
399
400 /**
401 * Determine public URL of a resource provided by an extension
402 *
403 * @param $ext string, extension name; use 'civicrm' for core
404 * @param $file string, file path -- relative to the extension base dir
405 * @param bool $addCacheCode
406 *
407 * @return string, URL
408 */
409 public function getUrl($ext, $file = NULL, $addCacheCode = FALSE) {
410 if ($file === NULL) {
411 $file = '';
412 }
413 if ($addCacheCode) {
414 $file .= '?r=' . $this->getCacheCode();
415 }
416 // TODO consider caching results
417 return $this->extMapper->keyToUrl($ext) . '/' . $file;
418 }
419
420 /**
421 * @return string
422 */
423 public function getCacheCode() {
424 return $this->cacheCode;
425 }
426
427 /**
428 * @param $value
429 */
430 public function setCacheCode($value) {
431 $this->cacheCode = $value;
432 if ($this->cacheCodeKey) {
433 CRM_Core_BAO_Setting::setItem($value, CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, $this->cacheCodeKey);
434 }
435 }
436
437 public function resetCacheCode() {
438 $this->setCacheCode(CRM_Utils_String::createRandom(5, CRM_Utils_String::ALPHANUMERIC));
439 }
440
441 /**
442 * This adds CiviCRM's standard css and js to the specified region of the document.
443 * It will only run once.
444 *
445 * TODO: Separate the functional code (like addStyle/addScript) from the policy code
446 * (like addCoreResources/addCoreStyles).
447 *
448 * @param string $region
449 * @return CRM_Core_Resources
450 * @access public
451 */
452 public function addCoreResources($region = 'html-header') {
453 if (!isset($this->addedCoreResources[$region])) {
454 $this->addedCoreResources[$region] = TRUE;
455 $config = CRM_Core_Config::singleton();
456
457 // Add resources from coreResourceList
458 $jsWeight = -9999;
459 foreach ($this->coreResourceList() as $file) {
460 if (substr($file, -2) == 'js') {
461 // Don't bother looking for ts() calls in packages, there aren't any
462 $translate = (substr($file, 0, 9) != 'packages/');
463 $this->addScriptFile('civicrm', $file, $jsWeight++, $region, $translate);
464 }
465 else {
466 $this->addStyleFile('civicrm', $file, -100, $region);
467 }
468 }
469
470 // Dynamic localization script
471 $this->addScriptUrl($this->addLocalizationJs(), $jsWeight++, $region);
472
473 // Add global settings
474 $settings = array('config' => array(
475 'ajaxPopupsEnabled' => $this->ajaxPopupsEnabled,
476 ));
477 // Disable profile creation if user lacks permission
478 if (!CRM_Core_Permission::check('edit all contacts') && !CRM_Core_Permission::check('add contacts')) {
479 $settings['profileCreate'] = FALSE;
480 }
481 $this->addSetting($settings);
482
483 // Give control of jQuery and _ back to the CMS - this loads last
484 $this->addScriptFile('civicrm', 'js/noconflict.js', 9999, $region, FALSE);
485
486 $this->addCoreStyles($region);
487 }
488 return $this;
489 }
490
491 /**
492 * This will add CiviCRM's standard CSS
493 *
494 * TODO: Separate the functional code (like addStyle/addScript) from the policy code
495 * (like addCoreResources/addCoreStyles).
496 *
497 * @param string $region
498 * @return CRM_Core_Resources
499 */
500 public function addCoreStyles($region = 'html-header') {
501 if (!isset($this->addedCoreStyles[$region])) {
502 $this->addedCoreStyles[$region] = TRUE;
503
504 // Load custom or core css
505 $config = CRM_Core_Config::singleton();
506 if (!empty($config->customCSSURL)) {
507 $this->addStyleUrl($config->customCSSURL, 99, $region);
508 }
509 if (!CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'disable_core_css')) {
510 $this->addStyleFile('civicrm', 'css/civicrm.css', -99, $region);
511 }
512 }
513 return $this;
514 }
515
516 /**
517 * Flushes cached translated strings
518 */
519 public function flushStrings() {
520 $this->cache->flush();
521 }
522
523 /**
524 * Translate strings in a javascript file
525 *
526 * @param $ext string, extension name
527 * @param $file string, file path
528 * @return void
529 */
530 private function translateScript($ext, $file) {
531 // For each extension, maintain one cache record which
532 // includes parsed (translatable) strings for all its JS files.
533 $stringsByFile = $this->cache->get($ext); // array($file => array(...strings...))
534 if (!$stringsByFile) {
535 $stringsByFile = array();
536 }
537 if (!isset($stringsByFile[$file])) {
538 $filePath = $this->getPath($ext, $file);
539 if ($filePath && is_readable($filePath)) {
540 $stringsByFile[$file] = CRM_Utils_JS::parseStrings(file_get_contents($filePath));
541 } else {
542 $stringsByFile[$file] = array();
543 }
544 $this->cache->set($ext, $stringsByFile);
545 }
546 $this->addString($stringsByFile[$file]);
547 }
548
549 /**
550 * Add dynamic l10n js
551 */
552 private function addLocalizationJs() {
553 $config = CRM_Core_Config::singleton();
554 $fileName = 'l10n-' . $config->lcMessages . '.js';
555 if (!is_file(CRM_Utils_File::dynamicResourcePath($fileName))) {
556 $this->createLocalizationJs($fileName);
557 }
558 // Dynamic localization script
559 return CRM_Utils_File::dynamicResourceUrl($fileName);
560 }
561
562 /**
563 * Create dymanic script for localizing js widgets
564 */
565 private function createLocalizationJs($fileName) {
566 $config = CRM_Core_Config::singleton();
567 $vars = array(
568 'moneyFormat' => json_encode(CRM_Utils_Money::format(1234.56)),
569 'contactSearch' => json_encode($config->includeEmailInName ? ts('Start typing a name or email...') : ts('Start typing a name...')),
570 'otherSearch' => json_encode(ts('Enter search term...')),
571 'contactCreate' => CRM_Core_BAO_UFGroup::getCreateLinks(),
572 );
573 CRM_Utils_File::addDynamicResource($fileName, CRM_Core_Page_AJAX::returnDynamicJS('CRM/common/localization.js.tpl', $vars));
574 }
575
576 /**
577 * List of core resources we add to every CiviCRM page
578 *
579 * @return array
580 */
581 public function coreResourceList() {
582 $config = CRM_Core_Config::singleton();
583 // Use minified files for production, uncompressed in debug mode
584 // Note, $this->addScriptFile would automatically search for the non-minified file in debug mode but this is probably faster
585 $min = $config->debug ? '' : '.min';
586
587 // Scripts needed by everyone, everywhere
588 // FIXME: This is too long; list needs finer-grained segmentation
589 $items = array(
590 "packages/jquery/jquery-1.11.1$min.js",
591 "packages/jquery/jquery-ui/jquery-ui$min.js",
592 "packages/jquery/jquery-ui/jquery-ui$min.css",
593
594 "packages/backbone/lodash.compat$min.js",
595
596 "packages/jquery/plugins/jquery.mousewheel$min.js",
597
598 "packages/jquery/plugins/select2/select2$min.js",
599 "packages/jquery/plugins/select2/select2.css",
600
601 "packages/jquery/plugins/jquery.tableHeader.js",
602
603 "packages/jquery/plugins/jquery.textarearesizer.js",
604
605 "packages/jquery/plugins/jquery.form$min.js",
606
607 "packages/jquery/plugins/jquery.timeentry$min.js",
608
609 "packages/jquery/plugins/DataTables/media/js/jquery.dataTables$min.js",
610 "packages/jquery/plugins/DataTables/media/css/jquery.dataTables$min.css",
611
612 "packages/jquery/plugins/jquery.validate$min.js",
613 "packages/jquery/plugins/jquery.ui.datepicker.validation.pack.js",
614
615 "js/Common.js",
616 "js/crm.ajax.js",
617 );
618
619 // These scripts are only needed by back-office users
620 if (CRM_Core_Permission::check('access CiviCRM')) {
621 $items[] = "packages/jquery/plugins/jquery.menu$min.js";
622 $items[] = "packages/jquery/css/menu.css";
623 $items[] = "packages/jquery/plugins/jquery.jeditable$min.js";
624 $items[] = "packages/jquery/plugins/jquery.blockUI$min.js";
625 $items[] = "packages/jquery/plugins/jquery.notify$min.js";
626 $items[] = "js/jquery/jquery.crmeditable.js";
627 }
628
629 // Enable administrators to edit option lists in a dialog
630 if (CRM_Core_Permission::check('administer CiviCRM') && $this->ajaxPopupsEnabled) {
631 $items[] = "js/crm.optionEdit.js";
632 }
633
634 // Add localized jQuery UI files
635 if ($config->lcMessages && $config->lcMessages != 'en_US') {
636 // Search for i18n file in order of specificity (try fr-CA, then fr)
637 list($lang) = explode('_', $config->lcMessages);
638 $path = "packages/jquery/jquery-ui/i18n";
639 foreach (array(str_replace('_', '-', $config->lcMessages), $lang) as $language) {
640 $localizationFile = "$path/datepicker-{$language}.js";
641 if ($this->getPath('civicrm', $localizationFile)) {
642 $items[] = $localizationFile;
643 break;
644 }
645 }
646 }
647 return $items;
648 }
649 }