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1 <?php 2 /** 3 * BuddyPress Core Theme Compatibility. 4 * 5 * @package BuddyPress 6 * @subpackage ThemeCompatibility 7 * @since 1.7.0 8 */ 9 10 // Exit if accessed directly. 11 defined( 'ABSPATH' ) || exit; 12 13 /** Theme Compat **************************************************************/ 14 15 /** 16 * What follows is an attempt at intercepting the natural page load process 17 * to replace the_content() with the appropriate BuddyPress content. 18 * 19 * To do this, BuddyPress does several direct manipulations of global variables 20 * and forces them to do what they are not supposed to be doing. 21 * 22 * Don't try anything you're about to witness here, at home. Ever. 23 */ 24 25 /** Functions *****************************************************************/ 26 27 /** 28 * Set up the default theme compat theme. 29 * 30 * @since 1.7.0 31 * 32 * @param string $theme Optional. The unique ID identifier of a theme package. 33 */ 34 function bp_setup_theme_compat( $theme = '' ) { 35 $bp = buddypress(); 36 37 // Make sure theme package is available, set to default if not. 38 if ( ! isset( $bp->theme_compat->packages[$theme] ) || ! is_a( $bp->theme_compat->packages[$theme], 'BP_Theme_Compat' ) ) { 39 $theme = 'legacy'; 40 } 41 42 // Set the active theme compat theme. 43 $bp->theme_compat->theme = $bp->theme_compat->packages[$theme]; 44 } 45 46 /** 47 * Get the ID of the theme package being used. 48 * 49 * This can be filtered or set manually. Tricky theme authors can override the 50 * default and include their own BuddyPress compatibility layers for their themes. 51 * 52 * @since 1.7.0 53 * 54 * @return string ID of the theme package in use. 55 */ 56 function bp_get_theme_compat_id() { 57 58 /** 59 * Filters the ID of the theme package being used. 60 * 61 * @since 1.7.0 62 * 63 * @param string $id ID of the theme package in use. 64 */ 65 return apply_filters( 'bp_get_theme_compat_id', buddypress()->theme_compat->theme->id ); 66 } 67 68 /** 69 * Get the name of the theme package being used. 70 * 71 * This can be filtered or set manually. Tricky theme authors can override the 72 * default and include their own BuddyPress compatibility layers for their themes. 73 * 74 * @since 1.7.0 75 * 76 * @return string Name of the theme package currently in use. 77 */ 78 function bp_get_theme_compat_name() { 79 80 /** 81 * Filters the name of the theme package being used. 82 * 83 * @since 1.7.0 84 * 85 * @param string $name Name of the theme package in use. 86 */ 87 return apply_filters( 'bp_get_theme_compat_name', buddypress()->theme_compat->theme->name ); 88 } 89 90 /** 91 * Get the version of the theme package being used. 92 * 93 * This can be filtered or set manually. Tricky theme authors can override the 94 * default and include their own BuddyPress compatibility layers for their themes. 95 * 96 * @since 1.7.0 97 * 98 * @return string The version string of the theme package currently in use. 99 */ 100 function bp_get_theme_compat_version() { 101 102 /** 103 * Filters the version of the theme package being used. 104 * 105 * @since 1.7.0 106 * 107 * @param string $version The version string of the theme package in use. 108 */ 109 return apply_filters( 'bp_get_theme_compat_version', buddypress()->theme_compat->theme->version ); 110 } 111 112 /** 113 * Get the absolute path of the theme package being used. 114 * 115 * Or set manually. Tricky theme authors can override the default and include 116 * their own BuddyPress compatibility layers for their themes. 117 * 118 * @since 1.7.0 119 * 120 * @return string The absolute path of the theme package currently in use. 121 */ 122 function bp_get_theme_compat_dir() { 123 124 /** 125 * Filters the absolute path of the theme package being used. 126 * 127 * @since 1.7.0 128 * 129 * @param string $dir The absolute path of the theme package in use. 130 */ 131 return apply_filters( 'bp_get_theme_compat_dir', buddypress()->theme_compat->theme->dir ); 132 } 133 134 /** 135 * Get the URL of the theme package being used. 136 * 137 * This can be filtered, or set manually. Tricky theme authors can override 138 * the default and include their own BuddyPress compatibility layers for their 139 * themes. 140 * 141 * @since 1.7.0 142 * 143 * @return string URL of the theme package currently in use. 144 */ 145 function bp_get_theme_compat_url() { 146 147 /** 148 * Filters the URL of the theme package being used. 149 * 150 * @since 1.7.0 151 * 152 * @param string $url URL of the theme package in use. 153 */ 154 return apply_filters( 'bp_get_theme_compat_url', buddypress()->theme_compat->theme->url ); 155 } 156 157 /** 158 * Should we use theme compat for this theme? 159 * 160 * If the current theme's need for theme compat hasn't yet been detected, we 161 * do so using bp_detect_theme_compat_with_current_theme(). 162 * 163 * @since 1.9.0 164 * 165 * @return bool True if the current theme needs theme compatibility. 166 */ 167 function bp_use_theme_compat_with_current_theme() { 168 if ( ! isset( buddypress()->theme_compat->use_with_current_theme ) ) { 169 bp_detect_theme_compat_with_current_theme(); 170 } 171 172 /** 173 * Filters whether or not to use theme compat for the active theme. 174 * 175 * @since 1.9.0 176 * 177 * @param bool $use_with_current_theme True if the current theme needs theme compatibility. 178 */ 179 return apply_filters( 'bp_use_theme_compat_with_current_theme', buddypress()->theme_compat->use_with_current_theme ); 180 } 181 182 /** 183 * Set our flag to determine whether theme compat should be enabled. 184 * 185 * Theme compat is disabled when a theme meets one of the following criteria: 186 * 1) It declares BP support with add_theme_support( 'buddypress' ) 187 * 2) It is bp-default, or a child theme of bp-default 188 * 3) A legacy template is found at members/members-loop.php. This is a 189 * fallback check for themes that were derived from bp-default, and have 190 * not been updated for BP 1.7+; we make the assumption that any theme in 191 * this category will have the members-loop.php template, and so use its 192 * presence as an indicator that theme compatibility is not required 193 * 194 * @since 1.9.0 195 * 196 * @return bool True if the current theme needs theme compatibility. 197 */ 198 function bp_detect_theme_compat_with_current_theme() { 199 if ( isset( buddypress()->theme_compat->use_with_current_theme ) ) { 200 return buddypress()->theme_compat->use_with_current_theme; 201 } 202 203 // Theme compat enabled by default. 204 $theme_compat = true; 205 206 // If the theme supports 'buddypress', bail. 207 if ( current_theme_supports( 'buddypress' ) ) { 208 $theme_compat = false; 209 210 // If the theme doesn't support BP, do some additional checks. 211 } else { 212 // Bail if theme is a derivative of bp-default. 213 if ( in_array( 'bp-default', array( get_template(), get_stylesheet() ) ) ) { 214 $theme_compat = false; 215 216 // Brute-force check for a BP template. 217 // Examples are clones of bp-default. 218 } elseif ( locate_template( 'members/members-loop.php', false, false ) ) { 219 $theme_compat = false; 220 } 221 } 222 223 // Set a flag in the buddypress() singleton so we don't have to run this again. 224 buddypress()->theme_compat->use_with_current_theme = $theme_compat; 225 226 return $theme_compat; 227 } 228 229 /** 230 * Is the current page using theme compatibility? 231 * 232 * @since 1.7.0 233 * 234 * @return bool True if the current page uses theme compatibility. 235 */ 236 function bp_is_theme_compat_active() { 237 $bp = buddypress(); 238 239 if ( empty( $bp->theme_compat->active ) ) { 240 return false; 241 } 242 243 return $bp->theme_compat->active; 244 } 245 246 /** 247 * Set the flag that tells whether the current page is using theme compatibility. 248 * 249 * @since 1.7.0 250 * 251 * @param bool $set True to set the flag to true, false to set it to false. 252 * @return bool Returns the value of $set. 253 */ 254 function bp_set_theme_compat_active( $set = true ) { 255 buddypress()->theme_compat->active = $set; 256 257 return (bool) buddypress()->theme_compat->active; 258 } 259 260 /** 261 * Set the theme compat templates global. 262 * 263 * Stash possible template files for the current query. Useful if plugins want 264 * to override them, or see what files are being scanned for inclusion. 265 * 266 * @since 1.7.0 267 * 268 * @param array $templates The template stack. 269 * @return array The template stack (value of $templates). 270 */ 271 function bp_set_theme_compat_templates( $templates = array() ) { 272 buddypress()->theme_compat->templates = $templates; 273 274 return buddypress()->theme_compat->templates; 275 } 276 277 /** 278 * Set the theme compat template global. 279 * 280 * Stash the template file for the current query. Useful if plugins want 281 * to override it, or see what file is being included. 282 * 283 * @since 1.7.0 284 * 285 * @param string $template The template currently in use. 286 * @return string The template currently in use (value of $template). 287 */ 288 function bp_set_theme_compat_template( $template = '' ) { 289 buddypress()->theme_compat->template = $template; 290 291 return buddypress()->theme_compat->template; 292 } 293 294 /** 295 * Set the theme compat original_template global. 296 * 297 * Stash the original template file for the current query. Useful for checking 298 * if BuddyPress was able to find a more appropriate template. 299 * 300 * @since 1.7.0 301 * 302 * @param string $template The template originally selected by WP. 303 * @return string The template originally selected by WP (value of $template). 304 */ 305 function bp_set_theme_compat_original_template( $template = '' ) { 306 buddypress()->theme_compat->original_template = $template; 307 308 return buddypress()->theme_compat->original_template; 309 } 310 311 /** 312 * Set a theme compat feature 313 * 314 * @since 2.4.0 315 * 316 * @param string $theme_id The theme id (eg: legacy). 317 * @param array $feature An associative array (eg: array( name => 'feature_name', 'settings' => array() )). 318 */ 319 function bp_set_theme_compat_feature( $theme_id, $feature = array() ) { 320 if ( empty( $theme_id ) || empty( $feature['name'] ) ) { 321 return; 322 } 323 324 // Get BuddyPress instance. 325 $bp = buddypress(); 326 327 // Get current theme compat theme. 328 $theme_compat_theme = $bp->theme_compat->theme; 329 330 // Bail if the Theme Compat theme is not in use. 331 if ( $theme_id !== bp_get_theme_compat_id() ) { 332 return; 333 } 334 335 $features = $theme_compat_theme->__get( 'features' ); 336 if ( empty( $features ) ) { 337 $features = array(); 338 } 339 340 // Bail if the feature is already registered or no settings were provided. 341 if ( isset( $features[ $feature['name'] ] ) || empty( $feature['settings'] ) ) { 342 return; 343 } 344 345 // Add the feature. 346 $features[ $feature['name'] ] = (object) $feature['settings']; 347 348 // The feature is attached to components. 349 if ( isset( $features[ $feature['name'] ]->components ) ) { 350 // Set the feature for each concerned component. 351 foreach ( (array) $features[ $feature['name'] ]->components as $component ) { 352 // The xProfile component is specific. 353 if ( 'xprofile' === $component ) { 354 $component = 'profile'; 355 } 356 357 if ( isset( $bp->{$component} ) ) { 358 if ( isset( $bp->{$component}->features ) ) { 359 $bp->{$component}->features[] = $feature['name']; 360 } else { 361 $bp->{$component}->features = array( $feature['name'] ); 362 } 363 } 364 } 365 } 366 367 // Finally update the theme compat features. 368 $theme_compat_theme->__set( 'features', $features ); 369 } 370 371 /** 372 * Get a theme compat feature 373 * 374 * @since 2.4.0 375 * 376 * @param string $feature The feature (eg: cover_image). 377 * @return object The feature settings. 378 */ 379 function bp_get_theme_compat_feature( $feature = '' ) { 380 // Get current theme compat theme. 381 $theme_compat_theme = buddypress()->theme_compat->theme; 382 383 // Get features. 384 $features = $theme_compat_theme->__get( 'features' ); 385 386 if ( ! isset( $features[ $feature ] ) ) { 387 return false; 388 } 389 390 return $features[ $feature ]; 391 } 392 393 /** 394 * Setup the theme's features. 395 * 396 * Note: BP Legacy's buddypress-functions.php is not loaded in WP Administration 397 * as it's loaded using bp_locate_template(). That's why this function is here. 398 * 399 * @since 2.4.0 400 * 401 * @global string $content_width the content width of the theme 402 */ 403 function bp_register_theme_compat_default_features() { 404 global $content_width; 405 406 // Do not set up default features on deactivation. 407 if ( bp_is_deactivation() ) { 408 return; 409 } 410 411 // If the current theme doesn't need theme compat, bail at this point. 412 if ( ! bp_use_theme_compat_with_current_theme() ) { 413 return; 414 } 415 416 // Make sure BP Legacy is the Theme Compat in use. 417 if ( 'legacy' !== bp_get_theme_compat_id() ) { 418 return; 419 } 420 421 // Get the theme. 422 $current_theme = wp_get_theme(); 423 $theme_handle = $current_theme->get_stylesheet(); 424 $parent = $current_theme->parent(); 425 426 if ( $parent ) { 427 $theme_handle = $parent->get_stylesheet(); 428 } 429 430 /** 431 * Since Companion stylesheets, the $content_width is smaller 432 * than the width used by BuddyPress, so we need to manually set the 433 * content width for the concerned themes. 434 * 435 * Example: array( stylesheet => content width used by BuddyPress ) 436 */ 437 $bp_content_widths = array( 438 'twentyfifteen' => 1300, 439 'twentyfourteen' => 955, 440 'twentythirteen' => 890, 441 ); 442 443 // Default values. 444 $bp_content_width = (int) $content_width; 445 $bp_handle = 'bp-legacy-css'; 446 447 // Specific to themes having companion stylesheets. 448 if ( isset( $bp_content_widths[ $theme_handle ] ) ) { 449 $bp_content_width = $bp_content_widths[ $theme_handle ]; 450 $bp_handle = 'bp-' . $theme_handle; 451 } 452 453 if ( is_rtl() ) { 454 $bp_handle .= '-rtl'; 455 } 456 457 $top_offset = 150; 458 $avatar_height = apply_filters( 'bp_core_avatar_full_height', $top_offset ); 459 460 if ( $avatar_height > $top_offset ) { 461 $top_offset = $avatar_height; 462 } 463 464 bp_set_theme_compat_feature( 'legacy', array( 465 'name' => 'cover_image', 466 'settings' => array( 467 'components' => array( 'xprofile', 'groups' ), 468 'width' => $bp_content_width, 469 'height' => $top_offset + round( $avatar_height / 2 ), 470 'callback' => 'bp_legacy_theme_cover_image', 471 'theme_handle' => $bp_handle, 472 ), 473 ) ); 474 } 475 476 /** 477 * Check whether a given template is the one that WP originally selected to display current page. 478 * 479 * @since 1.7.0 480 * 481 * @param string $template The template name to check. 482 * @return bool True if the value of $template is the same as the 483 * "original_template" originally selected by WP. Otherwise false. 484 */ 485 function bp_is_theme_compat_original_template( $template = '' ) { 486 $bp = buddypress(); 487 488 if ( empty( $bp->theme_compat->original_template ) ) { 489 return false; 490 } 491 492 return (bool) ( $bp->theme_compat->original_template == $template ); 493 } 494 495 /** 496 * Register a new BuddyPress theme package in the active theme packages array. 497 * 498 * For an example of how this function is used, see: 499 * {@link BuddyPress::register_theme_packages()}. 500 * 501 * @since 1.7.0 502 * 503 * @see BP_Theme_Compat for a description of the $theme parameter arguments. 504 * 505 * @param array $theme See {@link BP_Theme_Compat}. 506 * @param bool $override If true, overrides whatever package is currently set. 507 * Default: true. 508 */ 509 function bp_register_theme_package( $theme = array(), $override = true ) { 510 511 // Create new BP_Theme_Compat object from the $theme array. 512 if ( is_array( $theme ) ) { 513 $theme = new BP_Theme_Compat( $theme ); 514 } 515 516 // Bail if $theme isn't a proper object. 517 if ( ! is_a( $theme, 'BP_Theme_Compat' ) ) { 518 return; 519 } 520 521 // Load up BuddyPress. 522 $bp = buddypress(); 523 524 // Only set if the theme package was not previously registered or if the 525 // override flag is set. 526 if ( empty( $bp->theme_compat->packages[$theme->id] ) || ( true === $override ) ) { 527 $bp->theme_compat->packages[$theme->id] = $theme; 528 } 529 } 530 531 /** 532 * Populate various WordPress globals with dummy data to prevent errors. 533 * 534 * This dummy data is necessary because theme compatibility essentially fakes 535 * WordPress into thinking that there is content where, in fact, there is none 536 * (at least, no WordPress post content). By providing dummy data, we ensure 537 * that template functions - things like is_page() - don't throw errors. 538 * 539 * @since 1.7.0 540 * 541 * @global WP_Query $wp_query WordPress database access object. 542 * @global object $post Current post object. 543 * 544 * @param array $args Array of optional arguments. Arguments parallel the properties 545 * of {@link WP_Post}; see that class for more details. 546 */ 547 function bp_theme_compat_reset_post( $args = array() ) { 548 global $wp_query, $post; 549 550 // Switch defaults if post is set. 551 if ( isset( $wp_query->post ) ) { 552 $dummy = wp_parse_args( $args, array( 553 'ID' => $wp_query->post->ID, 554 'post_status' => $wp_query->post->post_status, 555 'post_author' => $wp_query->post->post_author, 556 'post_parent' => $wp_query->post->post_parent, 557 'post_type' => $wp_query->post->post_type, 558 'post_date' => $wp_query->post->post_date, 559 'post_date_gmt' => $wp_query->post->post_date_gmt, 560 'post_modified' => $wp_query->post->post_modified, 561 'post_modified_gmt' => $wp_query->post->post_modified_gmt, 562 'post_content' => $wp_query->post->post_content, 563 'post_title' => $wp_query->post->post_title, 564 'post_excerpt' => $wp_query->post->post_excerpt, 565 'post_content_filtered' => $wp_query->post->post_content_filtered, 566 'post_mime_type' => $wp_query->post->post_mime_type, 567 'post_password' => $wp_query->post->post_password, 568 'post_name' => $wp_query->post->post_name, 569 'guid' => $wp_query->post->guid, 570 'menu_order' => $wp_query->post->menu_order, 571 'pinged' => $wp_query->post->pinged, 572 'to_ping' => $wp_query->post->to_ping, 573 'ping_status' => $wp_query->post->ping_status, 574 'comment_status' => $wp_query->post->comment_status, 575 'comment_count' => $wp_query->post->comment_count, 576 'filter' => $wp_query->post->filter, 577 578 'is_404' => false, 579 'is_page' => false, 580 'is_single' => false, 581 'is_archive' => false, 582 'is_tax' => false, 583 ) ); 584 } else { 585 $dummy = wp_parse_args( $args, array( 586 'ID' => -9999, 587 'post_status' => 'public', 588 'post_author' => 0, 589 'post_parent' => 0, 590 'post_type' => 'page', 591 'post_date' => 0, 592 'post_date_gmt' => 0, 593 'post_modified' => 0, 594 'post_modified_gmt' => 0, 595 'post_content' => '', 596 'post_title' => '', 597 'post_excerpt' => '', 598 'post_content_filtered' => '', 599 'post_mime_type' => '', 600 'post_password' => '', 601 'post_name' => '', 602 'guid' => '', 603 'menu_order' => 0, 604 'pinged' => '', 605 'to_ping' => '', 606 'ping_status' => '', 607 'comment_status' => 'closed', 608 'comment_count' => 0, 609 'filter' => 'raw', 610 611 'is_404' => false, 612 'is_page' => false, 613 'is_single' => false, 614 'is_archive' => false, 615 'is_tax' => false, 616 ) ); 617 } 618 619 // Bail if dummy post is empty. 620 if ( empty( $dummy ) ) { 621 return; 622 } 623 624 // Set the $post global. 625 $post = new WP_Post( (object) $dummy ); 626 627 // Copy the new post global into the main $wp_query. 628 $wp_query->post = $post; 629 $wp_query->posts = array( $post ); 630 631 // Prevent comments form from appearing. 632 $wp_query->post_count = 1; 633 $wp_query->is_404 = $dummy['is_404']; 634 $wp_query->is_page = $dummy['is_page']; 635 $wp_query->is_single = $dummy['is_single']; 636 $wp_query->is_archive = $dummy['is_archive']; 637 $wp_query->is_tax = $dummy['is_tax']; 638 639 // Clean up the dummy post. 640 unset( $dummy ); 641 642 /** 643 * Force the header back to 200 status if not a deliberate 404. 644 * 645 * @see https://bbpress.trac.wordpress.org/ticket/1973 646 */ 647 if ( ! $wp_query->is_404() ) { 648 status_header( 200 ); 649 } 650 651 // If we are resetting a post, we are in theme compat. 652 bp_set_theme_compat_active( true ); 653 654 // If we are in theme compat, we don't need the 'Edit' post link. 655 add_filter( 'get_edit_post_link', 'bp_core_filter_edit_post_link', 10, 2 ); 656 } 657 658 /** 659 * Reset main query vars and filter 'the_content' to output a BuddyPress template part as needed. 660 * 661 * @since 1.7.0 662 * 663 * @param string $template Template name. 664 * @return string $template Template name. 665 */ 666 function bp_template_include_theme_compat( $template = '' ) { 667 // If embed template, bail. 668 if ( true === function_exists( 'is_embed' ) && is_embed() ) { 669 return $template; 670 } 671 672 // If the current theme doesn't need theme compat, bail at this point. 673 if ( ! bp_use_theme_compat_with_current_theme() ) { 674 return $template; 675 } 676 677 /** 678 * Fires when resetting main query vars and filtering 'the_content' to output BuddyPress template parts. 679 * 680 * Use this action to execute code that will communicate to BuddyPress's 681 * theme compatibility layer whether or not we're replacing the_content() 682 * with some other template part. 683 * 684 * @since 1.7.0 685 */ 686 do_action( 'bp_template_include_reset_dummy_post_data' ); 687 688 // Bail if the template already matches a BuddyPress template. 689 if ( isset( buddypress()->theme_compat->found_template ) && buddypress()->theme_compat->found_template ) { 690 return $template; 691 } 692 693 /** 694 * If we are relying on BuddyPress's built in theme compatibility to load 695 * the proper content, we need to intercept the_content, replace the 696 * output, and display ours instead. 697 * 698 * To do this, we first remove all filters from 'the_content' and hook 699 * our own function into it, which runs a series of checks to determine 700 * the context, and then uses the built in shortcodes to output the 701 * correct results from inside an output buffer. 702 * 703 * Uses bp_get_theme_compat_templates() to provide fall-backs that 704 * should be coded without superfluous mark-up and logic (prev/next 705 * navigation, comments, date/time, etc...) 706 * 707 * Hook into 'bp_get_buddypress_template' to override the array of 708 * possible templates, or 'bp_buddypress_template' to override the result. 709 */ 710 if ( bp_is_theme_compat_active() ) { 711 $template = bp_get_theme_compat_templates(); 712 713 add_filter( 'the_content', 'bp_replace_the_content' ); 714 715 // Add BuddyPress's head action to wp_head. 716 if ( ! has_action( 'wp_head', 'bp_head' ) ) { 717 add_action( 'wp_head', 'bp_head' ); 718 } 719 } 720 721 /** 722 * Filters the template name to include. 723 * 724 * @since 1.7.0 725 * 726 * @param string $template Template name. 727 */ 728 return apply_filters( 'bp_template_include_theme_compat', $template ); 729 } 730 731 /** 732 * Conditionally replace 'the_content'. 733 * 734 * Replaces the_content() if the post_type being displayed is one that would 735 * normally be handled by BuddyPress, but proper single page templates do not 736 * exist in the currently active theme. 737 * 738 * @since 1.7.0 739 * 740 * @param string $content Original post content. 741 * @return string $content Post content, potentially modified. 742 */ 743 function bp_replace_the_content( $content = '' ) { 744 745 // Bail if not the main loop where theme compat is happening. 746 if ( ! bp_do_theme_compat() ) { 747 return $content; 748 } 749 750 // Set theme compat to false early, to avoid recursion from nested calls to 751 // the_content() that execute before theme compat has unhooked itself. 752 bp_set_theme_compat_active( false ); 753 754 /** 755 * Filters the content to replace in the post. 756 * 757 * @since 1.7.0 758 * 759 * @param string $content Original post content. 760 */ 761 $new_content = apply_filters( 'bp_replace_the_content', $content ); 762 763 // Juggle the content around and try to prevent unsightly comments. 764 if ( ! empty( $new_content ) && ( $new_content !== $content ) ) { 765 766 // Set the content to be the new content. 767 $content = $new_content; 768 769 // Clean up after ourselves. 770 unset( $new_content ); 771 772 // Reset the $post global. 773 wp_reset_postdata(); 774 } 775 776 // Return possibly hi-jacked content. 777 return $content; 778 } 779 780 /** 781 * Are we currently replacing the_content? 782 * 783 * @since 1.8.0 784 * 785 * @return bool True if the_content is currently in the process of being 786 * filtered and replaced. 787 */ 788 function bp_do_theme_compat() { 789 return (bool) ( ! bp_is_template_included() && in_the_loop() && bp_is_theme_compat_active() ); 790 } 791 792 /** Filters *******************************************************************/ 793 794 /** 795 * Remove all filters from a WordPress filter hook. 796 * 797 * Removed filters are stashed in the $bp global, in case they need to be 798 * restored later. 799 * 800 * @since 1.7.0 801 * 802 * @global WP_filter $wp_filter 803 * @global array $merged_filters 804 * 805 * @param string $tag The filter tag to remove filters from. 806 * @param int|bool $priority Optional. If present, only those callbacks attached 807 * at a given priority will be removed. Otherwise, all callbacks 808 * attached to the tag will be removed, regardless of priority. 809 * @return bool True on success. 810 */ 811 function bp_remove_all_filters( $tag, $priority = false ) { 812 global $wp_filter, $merged_filters; 813 814 $bp = buddypress(); 815 816 // Filters exist. 817 if ( isset( $wp_filter[$tag] ) ) { 818 819 // Filters exist in this priority. 820 if ( ! empty( $priority ) && isset( $wp_filter[$tag][$priority] ) ) { 821 822 // Store filters in a backup. 823 $bp->filters->wp_filter[$tag][$priority] = $wp_filter[$tag][$priority]; 824 825 // Unset the filters. 826 unset( $wp_filter[$tag][$priority] ); 827 828 // Priority is empty. 829 } else { 830 831 // Store filters in a backup. 832 $bp->filters->wp_filter[$tag] = $wp_filter[$tag]; 833 834 // Unset the filters. 835 unset( $wp_filter[$tag] ); 836 } 837 } 838 839 // Check merged filters. 840 if ( isset( $merged_filters[$tag] ) ) { 841 842 // Store filters in a backup. 843 $bp->filters->merged_filters[$tag] = $merged_filters[$tag]; 844 845 // Unset the filters. 846 unset( $merged_filters[$tag] ); 847 } 848 849 return true; 850 } 851 852 /** 853 * Restore filters that were removed using bp_remove_all_filters(). 854 * 855 * @since 1.7.0 856 * 857 * @global WP_filter $wp_filter 858 * @global array $merged_filters 859 * 860 * @param string $tag The tag to which filters should be restored. 861 * @param int|bool $priority Optional. If present, only those filters that were originally 862 * attached to the tag with $priority will be restored. Otherwise, 863 * all available filters will be restored, regardless of priority. 864 * @return bool True on success. 865 */ 866 function bp_restore_all_filters( $tag, $priority = false ) { 867 global $wp_filter, $merged_filters; 868 869 $bp = buddypress(); 870 871 // Filters exist. 872 if ( isset( $bp->filters->wp_filter[$tag] ) ) { 873 874 // Filters exist in this priority. 875 if ( ! empty( $priority ) && isset( $bp->filters->wp_filter[$tag][$priority] ) ) { 876 877 // Store filters in a backup. 878 $wp_filter[$tag][$priority] = $bp->filters->wp_filter[$tag][$priority]; 879 880 // Unset the filters. 881 unset( $bp->filters->wp_filter[$tag][$priority] ); 882 883 // Priority is empty. 884 } else { 885 886 // Store filters in a backup. 887 $wp_filter[$tag] = $bp->filters->wp_filter[$tag]; 888 889 // Unset the filters. 890 unset( $bp->filters->wp_filter[$tag] ); 891 } 892 } 893 894 // Check merged filters. 895 if ( isset( $bp->filters->merged_filters[$tag] ) ) { 896 897 // Store filters in a backup. 898 $merged_filters[$tag] = $bp->filters->merged_filters[$tag]; 899 900 // Unset the filters. 901 unset( $bp->filters->merged_filters[$tag] ); 902 } 903 904 return true; 905 } 906 907 /** 908 * Force comments_status to 'closed' for BuddyPress post types. 909 * 910 * @since 1.7.0 911 * 912 * @param bool $open True if open, false if closed. 913 * @param int $post_id ID of the post to check. 914 * @return bool True if open, false if closed. 915 */ 916 function bp_comments_open( $open, $post_id = 0 ) { 917 918 $retval = is_buddypress() ? false : $open; 919 920 /** 921 * Filters whether or not to force comments_status to closed for BuddyPress post types. 922 * 923 * @since 1.7.0 924 * 925 * @param bool $retval Whether or not we are on a BuddyPress post type. 926 * @param bool $open True if comments open, false if closed. 927 * @param int $post_id Post ID for the checked post. 928 */ 929 return apply_filters( 'bp_force_comment_status', $retval, $open, $post_id ); 930 } 931 932 /** 933 * Do not allow {@link comments_template()} to render during theme compatibility. 934 * 935 * When theme compatibility sets the 'is_page' flag to true via 936 * {@link bp_theme_compat_reset_post()}, themes that use comments_template() 937 * in their page template will run. 938 * 939 * To prevent comments_template() from rendering, we set the 'is_page' and 940 * 'is_single' flags to false since that function looks at these conditionals 941 * before querying the database for comments and loading the comments template. 942 * 943 * This is done during the output buffer as late as possible to prevent any 944 * wonkiness. 945 * 946 * @since 1.9.2 947 * 948 * @param string $retval The current post content. 949 * @return string $retval 950 */ 951 function bp_theme_compat_toggle_is_page( $retval = '' ) { 952 global $wp_query; 953 954 if ( $wp_query->is_page ) { 955 $wp_query->is_page = false; 956 957 // Set a switch so we know that we've toggled these WP_Query properties. 958 buddypress()->theme_compat->is_page_toggled = true; 959 } 960 961 return $retval; 962 } 963 add_filter( 'bp_replace_the_content', 'bp_theme_compat_toggle_is_page', 9999 ); 964 965 /** 966 * Restores the 'is_single' and 'is_page' flags if toggled by BuddyPress. 967 * 968 * @since 1.9.2 969 * 970 * @see bp_theme_compat_toggle_is_page() 971 * @param object $query The WP_Query object. 972 */ 973 function bp_theme_compat_loop_end( $query ) { 974 975 // Get BuddyPress. 976 $bp = buddypress(); 977 978 // Bail if page is not toggled. 979 if ( ! isset( $bp->theme_compat->is_page_toggled ) ) { 980 return; 981 } 982 983 // Revert our toggled WP_Query properties. 984 $query->is_page = true; 985 986 // Unset our switch. 987 unset( $bp->theme_compat->is_page_toggled ); 988 } 989 add_action( 'loop_end', 'bp_theme_compat_loop_end' ); 990 991 /** 992 * Maybe override the preferred template pack if the theme declares a dependency. 993 * 994 * @since 3.0.0 995 */ 996 function bp_check_theme_template_pack_dependency() { 997 if ( bp_is_deactivation() ) { 998 return; 999 } 1000 1001 $all_packages = array_keys( buddypress()->theme_compat->packages ); 1002 1003 foreach ( $all_packages as $package ) { 1004 // e.g. "buddypress-use-nouveau", "buddypress-use-legacy". 1005 if ( ! current_theme_supports( "buddypress-use-{$package}" ) ) { 1006 continue; 1007 } 1008 1009 bp_setup_theme_compat( $package ); 1010 return; 1011 } 1012 }
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