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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 gp_breadcrumb( $breadcrumb = null, $args = array() ) {
  73      $defaults = array(
  74          /* translators: separates links in the navigation breadcrumb */
  75          'separator' => '<span class="separator">'._x('&rarr;', 'breadcrumb').'</span>',
  76          'breadcrumb-template' => '<span class="breadcrumb">{separator}{breadcrumb}</span>',
  77      );
  78      $args = array_merge( $defaults, $args );
  79      if ( !is_null( $breadcrumb ) ) {
  80          $breadcrumb = gp_array_flatten( $breadcrumb );
  81          $breadcrumb_string = implode( $args['separator'], array_filter( $breadcrumb ) );
  82          $whole_breadcrumb = str_replace( '{separator}', $args['separator'], $args['breadcrumb-template'] );
  83          $whole_breadcrumb = str_replace( '{breadcrumb}', $breadcrumb_string, $whole_breadcrumb );
  84          add_filter( 'gp_breadcrumb', lambda( '$x', '$whole_breadcrumb', compact( 'whole_breadcrumb' ) ), 5 );
  85      } else {
  86          return apply_filters( 'gp_breadcrumb', '' );
  87      }
  88  }
  89  
  90  function gp_project_links_from_root( $leaf_project ) {
  91      $links = array();
  92      $path_from_root = array_reverse( $leaf_project->path_to_root() );
  93      $links[] = empty( $path_from_root)? 'Projects' : gp_link_get( gp_url( '/projects' ), 'Projects' );
  94      foreach( $path_from_root as $project ) {
  95          $links[] = gp_link_project_get( $project, esc_html( $project->name ) );
  96      }
  97      return $links;
  98  }
  99  
 100  function gp_breadcrumb_project( $project ) {
 101      return gp_breadcrumb( gp_project_links_from_root( $project ) );
 102  }
 103  
 104  function gp_js_focus_on( $html_id ) {
 105      return '<script type="text/javascript">document.getElementById("'.$html_id.'").focus();</script>';
 106  }
 107  
 108  function gp_select( $name_and_id, $options, $selected_key, $attrs = array() ) {
 109      $attributes = gp_html_attributes( $attrs );
 110      $attributes = $attributes? " $attributes" : '';
 111      $res = "<select name='" . esc_attr( $name_and_id ) . "' id='" . esc_attr( $name_and_id ) . "' $attributes>\n";
 112      foreach( $options as $value => $label ) {
 113          $selected = $value == $selected_key? " selected='selected'" : '';
 114          $res .= "\t<option value='".esc_attr( $value )."' $selected>" . esc_html( $label ) . "</option>\n";
 115      }
 116      $res .= "</select>\n";
 117      return $res;
 118  }
 119  
 120  function gp_radio_buttons( $name, $radio_buttons, $checked_key ) {
 121      $res = '';
 122      foreach( $radio_buttons as $value => $label ) {
 123          $checked = $value == $checked_key? " checked='checked'" : '';
 124          // TODO: something more flexible than <br />
 125          $res .= "\t<input type='radio' name='$name' value='".esc_attr( $value )."' $checked id='{$name}[{$value}]'/>&nbsp;";
 126          $res .= "<label for='{$name}[{$value}]'>".esc_html( $label )."</label><br />\n";
 127      }
 128      return $res;
 129  }
 130  
 131  function gp_pagination( $page, $per_page, $objects ) {
 132      $surrounding = 2;
 133      $prev = $first = $prev_dots = $prev_pages = $current = $next_pages = $next_dots = $last = $next = '';
 134      $page = intval( $page )? intval( $page ) : 1;
 135      $pages = ceil( $objects / $per_page );
 136      if ( $page > $pages ) return '';
 137      if ( $page > 1 )
 138          $prev = gp_link_get( add_query_arg( array( 'page' => $page - 1 ) ), '&larr;', array('class' => 'previous') );
 139      else
 140          $prev = '<span class="previous disabled">&larr;</span>';
 141      if ( $page < $pages )
 142          $next = gp_link_get( add_query_arg( array( 'page' => $page + 1)), '&rarr;', array('class' => 'next') );
 143      else
 144          $next = '<span class="next disabled">&rarr;</span>';
 145      $current = '<span class="current">'.$page.'</span>';
 146      if ( $page > 1 ) {
 147          $prev_pages = array();
 148          foreach( range( max( 1, $page - $surrounding ), $page - 1 ) as $prev_page ) {
 149              $prev_pages[] = gp_link_get( add_query_arg( array( 'page' => $prev_page ) ), $prev_page );
 150          }
 151          $prev_pages = implode( ' ', $prev_pages );
 152          if ( $page - $surrounding > 1 ) $prev_dots = '<span class="dots">&hellip;</span>';
 153      }
 154      if ( $page < $pages ) {
 155          $next_pages = array();
 156          foreach( range( $page + 1, min( $pages, $page + $surrounding ) ) as $next_page ) {
 157              $next_pages[] = gp_link_get( add_query_arg( array( 'page' => $next_page ) ), $next_page );
 158          }
 159          $next_pages = implode( ' ', $next_pages );
 160          if ( $page + $surrounding < $pages ) $next_dots = '<span class="dots">&hellip;</span>';
 161      }
 162      if ( $prev_dots ) $first = gp_link_get( add_query_arg( array( 'page' => 1 ) ), 1 );
 163      if ( $next_dots ) $last = gp_link_get( add_query_arg( array( 'page' => $pages ) ), $pages );
 164       $html = <<<HTML
 165      <div class="paging">
 166          $prev
 167          $first
 168          $prev_dots
 169          $prev_pages
 170          $current
 171          $next_pages
 172          $next_dots
 173          $last
 174          $next
 175      </div>
 176  HTML;
 177      return apply_filters( 'gp_pagination', $html, $page, $per_page, $objects );
 178  }
 179  
 180  function gp_html_attributes( $attrs ) {
 181      $attrs = wp_parse_args( $attrs );
 182      $strings = array();
 183      foreach( $attrs as $key => $value ) {
 184          $strings[] = $key.'="'.esc_attr( $value ).'"';
 185      }
 186      return implode( ' ', $strings );
 187  }
 188  
 189  function gp_attrs_add_class( $attrs, $class_name ) {
 190      $attrs['class'] = isset( $attrs['class'] )? $attrs['class'] . ' ' . $class_name : $class_name;
 191      return $attrs;
 192  }
 193  
 194  function gp_locales_dropdown( $name_and_id, $selected_slug = null, $attrs = array() ) {
 195      $locales = GP_Locales::locales();
 196      $values = array_map( create_function( '$l', 'return $l->slug;'), $locales );
 197      $labels = array_map( create_function( '$l', 'return $l->slug." &mdash; ". $l->english_name;'), $locales );
 198      sort( $values );
 199      sort( $labels );
 200      return gp_select( $name_and_id, array_merge( array( '' => __('&mdash; Locale &mdash;') ), array_combine( $values, $labels ) ), $selected_slug, $attrs );
 201  }
 202  
 203  function gp_projects_dropdown( $name_and_id, $selected_project_id = null, $attrs = array() ) {
 204      $projects = GP::$project->all();
 205      // TODO: mark which nodes are editable by the current user
 206      $tree = array();
 207      $top = array();
 208      foreach( $projects as $p ) {
 209          $tree[$p->id]['self'] = $p;
 210          if ( $p->parent_project_id ) {
 211              $tree[$p->parent_project_id]['children'][] = $p->id;
 212          } else {
 213              $top[] = $p->id;
 214          }
 215      }
 216      $options = array( '' => __('&mdash; No parent &mdash;') );
 217      $stack = array();
 218      foreach( $top as $top_id ) {
 219          $stack = array( $top_id );
 220          while ( !empty( $stack ) ) {
 221              $id = array_pop( $stack );
 222              $tree[$id]['level'] = gp_array_get( $tree[$id], 'level', 0 );
 223              $options[$id] = str_repeat( '-', $tree[$id]['level'] ) . $tree[$id]['self']->name;
 224              foreach( gp_array_get( $tree[$id], 'children', array() ) as $child_id ) {
 225                  $stack[] = $child_id;
 226                  $tree[$child_id]['level'] = $tree[$id]['level'] + 1;
 227              }
 228          }
 229      }
 230      return gp_select( $name_and_id, $options, $selected_project_id, $attrs );
 231  }
 232  
 233  function gp_array_of_things_to_json( $array ) {
 234      return json_encode( array_map( lambda( '$thing', '$thing->fields();' ), $array ) );
 235  }
 236  
 237  function gp_array_of_array_of_things_to_json( $array ) {
 238      $map_to_fields = create_function( '$array', 'return array_map( lambda( \'$thing\', \'$thing->fields();\' ), $array );' );
 239      return json_encode( array_map( $map_to_fields, $array ) );
 240  }
 241  
 242  function gp_preferred_sans_serif_style_tag( $locale ) {
 243      if ( $locale->preferred_sans_serif_font_family ) {
 244          echo <<<HTML
 245      <style type="text/css">
 246          .foreign-text {
 247              font-family: "$locale->preferred_sans_serif_font_family", inherit;
 248          }
 249      </style>
 250  
 251  HTML;
 252      }
 253  }
 254  
 255  function gp_html_excerpt( $str, $count, $ellipsis = '&hellip;') {
 256      $excerpt = trim( wp_html_excerpt( $str, $count ) );
 257      if ( $str != $excerpt ) {
 258          $excerpt .= $ellipsis;
 259      }
 260      return $excerpt;
 261  }
 262  
 263  function gp_checked( $checked ) {
 264      if ( $checked ) {
 265          echo 'checked="checked"';
 266      }
 267  }