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   1  <?php
   2  function gp_tmpl_load( $template, $args = array(), $template_path = null ) {
   3      $args = gp_tmpl_filter_args( $args );
   4      do_action_ref_array( 'pre_tmpl_load', array( $template, &$args ) );
   5      require_once GP_TMPL_PATH . 'helper-functions.php';
   6      $locations = array( GP_TMPL_PATH );
   7      if ( !is_null( $template_path ) ) {
   8          array_unshift( $locations, untrailingslashit( $template_path ) . '/' );
   9      }
  10      if ( isset( $args['http_status'] ) )
  11          status_header( $args['http_status'] );
  12      foreach( $locations as $location ) {
  13           $file = $location . "$template.php";
  14          if ( is_readable( $file ) ) {
  15              extract( $args, EXTR_SKIP );
  16              include $file;
  17              break;
  18          }
  19      }
  20      do_action_ref_array( 'post_tmpl_load', array( $template, &$args ) );
  21  }
  22  
  23  function gp_tmpl_get_output() {
  24      $args = func_get_args();
  25      ob_start();
  26      call_user_func_array( 'gp_tmpl_load', $args );
  27      $contents = ob_get_contents();
  28      ob_end_clean();
  29      return $contents;
  30  }
  31  
  32  function gp_tmpl_header( $args = array( ) ) {
  33      gp_tmpl_load( 'header', $args );
  34  }
  35  
  36  function gp_tmpl_footer( $args = array( ) ) {
  37      gp_tmpl_load( 'footer', $args );
  38  }
  39  
  40  function gp_head() {
  41      do_action( 'gp_head' );
  42  }
  43  
  44  function gp_footer() {
  45      do_action( 'gp_footer' );
  46  }
  47  
  48  function gp_content() {
  49      do_action( 'gp_content' );
  50  }
  51  
  52  function gp_tmpl_filter_args( $args ) {
  53      $clean_args = array();
  54      foreach( $args as $k => $v )
  55          if ( $k[0] != '_' && $k != 'GLOBALS' && !gp_startswith( $k, 'HTTP' ) && !gp_startswith( $k, 'PHP' ) )
  56              $clean_args[$k] = $v;
  57      return $clean_args;
  58  }
  59  
  60  function gp_tmpl_404( $args = array()) {
  61      gp_tmpl_load( '404', $args + array('title' => __('Not Found'), 'http_status' => 404 ) );
  62      exit();
  63  }
  64  
  65  function gp_title( $title = null ) {
  66      if ( !is_null( $title ) )
  67          add_filter( 'gp_title', lambda( '$x', '$title', compact( 'title' ) ), 5 );
  68      else
  69          return apply_filters( 'gp_title', '' );
  70  }
  71  
  72  function body_class() {
  73      $classes = apply_filters( 'body_class', array( 'no-js' ) );
  74  
  75      // Separates classes with a single space, collates classes for body element
  76      echo 'class="' . join( ' ', $classes ) . '"';
  77  }
  78  
  79  
  80  function gp_breadcrumb( $breadcrumb = null, $args = array() ) {
  81      $defaults = array(
  82          /* translators: separates links in the navigation breadcrumb */
  83          'separator' => '<span class="separator">'._x('&rarr;', 'breadcrumb').'</span>',
  84          'breadcrumb-template' => '<span class="breadcrumb">{separator}{breadcrumb}</span>',
  85      );
  86      $args = array_merge( $defaults, $args );
  87      if ( !is_null( $breadcrumb ) ) {
  88          $breadcrumb = gp_array_flatten( $breadcrumb );
  89          $breadcrumb_string = implode( $args['separator'], array_filter( $breadcrumb ) );
  90          $whole_breadcrumb = str_replace( '{separator}', $args['separator'], $args['breadcrumb-template'] );
  91          $whole_breadcrumb = str_replace( '{breadcrumb}', $breadcrumb_string, $whole_breadcrumb );
  92          add_filter( 'gp_breadcrumb', lambda( '$x', '$whole_breadcrumb', compact( 'whole_breadcrumb' ) ), 5 );
  93      } else {
  94          return apply_filters( 'gp_breadcrumb', '' );
  95      }
  96  }
  97  
  98  function gp_project_links_from_root( $leaf_project ) {
  99      $links = array();
 100      $path_from_root = array_reverse( $leaf_project->path_to_root() );
 101      $links[] = empty( $path_from_root)? __('Projects') : gp_link_get( gp_url( '/projects' ), __('Projects') );
 102      foreach( $path_from_root as $project ) {
 103          $links[] = gp_link_project_get( $project, esc_html( $project->name ) );
 104      }
 105      return $links;
 106  }
 107  
 108  function gp_breadcrumb_project( $project ) {
 109      return gp_breadcrumb( gp_project_links_from_root( $project ) );
 110  }
 111  
 112  function gp_js_focus_on( $html_id ) {
 113      return '<script type="text/javascript">document.getElementById("'.$html_id.'").focus();</script>';
 114  }
 115  
 116  function gp_select( $name_and_id, $options, $selected_key, $attrs = array() ) {
 117      $attributes = gp_html_attributes( $attrs );
 118      $attributes = $attributes? " $attributes" : '';
 119      $res = "<select name='" . esc_attr( $name_and_id ) . "' id='" . esc_attr( $name_and_id ) . "' $attributes>\n";
 120      foreach( $options as $value => $label ) {
 121          $selected = $value == $selected_key? " selected='selected'" : '';
 122          $res .= "\t<option value='".esc_attr( $value )."' $selected>" . esc_html( $label ) . "</option>\n";
 123      }
 124      $res .= "</select>\n";
 125      return $res;
 126  }
 127  
 128  function gp_radio_buttons( $name, $radio_buttons, $checked_key ) {
 129      $res = '';
 130      foreach( $radio_buttons as $value => $label ) {
 131          $checked = $value == $checked_key? " checked='checked'" : '';
 132          // TODO: something more flexible than <br />
 133          $res .= "\t<input type='radio' name='$name' value='".esc_attr( $value )."' $checked id='{$name}[{$value}]'/>&nbsp;";
 134          $res .= "<label for='{$name}[{$value}]'>".esc_html( $label )."</label><br />\n";
 135      }
 136      return $res;
 137  }
 138  
 139  function gp_pagination( $page, $per_page, $objects ) {
 140      $surrounding = 2;
 141      $prev = $first = $prev_dots = $prev_pages = $current = $next_pages = $next_dots = $last = $next = '';
 142      $page = intval( $page )? intval( $page ) : 1;
 143      $pages = ceil( $objects / $per_page );
 144      if ( $page > $pages ) return '';
 145      if ( $page > 1 )
 146          $prev = gp_link_get( add_query_arg( array( 'page' => $page - 1 ) ), '&larr;', array('class' => 'previous') );
 147      else
 148          $prev = '<span class="previous disabled">&larr;</span>';
 149      if ( $page < $pages )
 150          $next = gp_link_get( add_query_arg( array( 'page' => $page + 1)), '&rarr;', array('class' => 'next') );
 151      else
 152          $next = '<span class="next disabled">&rarr;</span>';
 153      $current = '<span class="current">'.$page.'</span>';
 154      if ( $page > 1 ) {
 155          $prev_pages = array();
 156          foreach( range( max( 1, $page - $surrounding ), $page - 1 ) as $prev_page ) {
 157              $prev_pages[] = gp_link_get( add_query_arg( array( 'page' => $prev_page ) ), $prev_page );
 158          }
 159          $prev_pages = implode( ' ', $prev_pages );
 160          if ( $page - $surrounding > 1 ) $prev_dots = '<span class="dots">&hellip;</span>';
 161      }
 162      if ( $page < $pages ) {
 163          $next_pages = array();
 164          foreach( range( $page + 1, min( $pages, $page + $surrounding ) ) as $next_page ) {
 165              $next_pages[] = gp_link_get( add_query_arg( array( 'page' => $next_page ) ), $next_page );
 166          }
 167          $next_pages = implode( ' ', $next_pages );
 168          if ( $page + $surrounding < $pages ) $next_dots = '<span class="dots">&hellip;</span>';
 169      }
 170      if ( $prev_dots ) $first = gp_link_get( add_query_arg( array( 'page' => 1 ) ), 1 );
 171      if ( $next_dots ) $last = gp_link_get( add_query_arg( array( 'page' => $pages ) ), $pages );
 172       $html = <<<HTML
 173      <div class="paging">
 174          $prev
 175          $first
 176          $prev_dots
 177          $prev_pages
 178          $current
 179          $next_pages
 180          $next_dots
 181          $last
 182          $next
 183      </div>
 184  HTML;
 185      return apply_filters( 'gp_pagination', $html, $page, $per_page, $objects );
 186  }
 187  
 188  function gp_html_attributes( $attrs ) {
 189      $attrs = wp_parse_args( $attrs );
 190      $strings = array();
 191      foreach( $attrs as $key => $value ) {
 192          $strings[] = $key.'="'.esc_attr( $value ).'"';
 193      }
 194      return implode( ' ', $strings );
 195  }
 196  
 197  function gp_attrs_add_class( $attrs, $class_name ) {
 198      $attrs['class'] = isset( $attrs['class'] )? $attrs['class'] . ' ' . $class_name : $class_name;
 199      return $attrs;
 200  }
 201  
 202  function gp_locales_dropdown( $name_and_id, $selected_slug = null, $attrs = array() ) {
 203      $locales = GP_Locales::locales();
 204      $values = array_map( create_function( '$l', 'return $l->slug;'), $locales );
 205      $labels = array_map( create_function( '$l', 'return $l->slug." &mdash; ". $l->english_name;'), $locales );
 206      sort( $values );
 207      sort( $labels );
 208      return gp_select( $name_and_id, array_merge( array( '' => __('&mdash; Locale &mdash;') ), array_combine( $values, $labels ) ), $selected_slug, $attrs );
 209  }
 210  
 211  function gp_projects_dropdown( $name_and_id, $selected_project_id = null, $attrs = array() ) {
 212      $projects = GP::$project->all();
 213      // TODO: mark which nodes are editable by the current user
 214      $tree = array();
 215      $top = array();
 216      foreach( $projects as $p ) {
 217          $tree[$p->id]['self'] = $p;
 218          if ( $p->parent_project_id ) {
 219              $tree[$p->parent_project_id]['children'][] = $p->id;
 220          } else {
 221              $top[] = $p->id;
 222          }
 223      }
 224      $options = array( '' => __('&mdash; No parent &mdash;') );
 225      $stack = array();
 226      foreach( $top as $top_id ) {
 227          $stack = array( $top_id );
 228          while ( !empty( $stack ) ) {
 229              $id = array_pop( $stack );
 230              $tree[$id]['level'] = gp_array_get( $tree[$id], 'level', 0 );
 231              $options[$id] = str_repeat( '-', $tree[$id]['level'] ) . $tree[$id]['self']->name;
 232              foreach( gp_array_get( $tree[$id], 'children', array() ) as $child_id ) {
 233                  $stack[] = $child_id;
 234                  $tree[$child_id]['level'] = $tree[$id]['level'] + 1;
 235              }
 236          }
 237      }
 238      return gp_select( $name_and_id, $options, $selected_project_id, $attrs );
 239  }
 240  
 241  function gp_array_of_things_to_json( $array ) {
 242      return json_encode( array_map( lambda( '$thing', '$thing->fields();' ), $array ) );
 243  }
 244  
 245  function gp_array_of_array_of_things_to_json( $array ) {
 246      $map_to_fields = create_function( '$array', 'return array_map( lambda( \'$thing\', \'$thing->fields();\' ), $array );' );
 247      return json_encode( array_map( $map_to_fields, $array ) );
 248  }
 249  
 250  function gp_preferred_sans_serif_style_tag( $locale ) {
 251      if ( $locale->preferred_sans_serif_font_family ) {
 252          echo <<<HTML
 253      <style type="text/css">
 254          .foreign-text {
 255              font-family: "$locale->preferred_sans_serif_font_family", inherit;
 256          }
 257      </style>
 258  
 259  HTML;
 260      }
 261  }
 262  
 263  function gp_html_excerpt( $str, $count, $ellipsis = '&hellip;') {
 264      $excerpt = trim( wp_html_excerpt( $str, $count ) );
 265      if ( $str != $excerpt ) {
 266          $excerpt .= $ellipsis;
 267      }
 268      return $excerpt;
 269  }
 270  
 271  function gp_checked( $checked ) {
 272      if ( $checked ) {
 273          echo 'checked="checked"';
 274      }
 275  }