function getPageHeader() { global $wgRequest; global $sdgContLang, $sdgScriptPath; global $sdgFiltersSmallestFontSize, $sdgFiltersLargestFontSize; $categories = SDUtils::getCategoriesForBrowsing(); // if there are no categories, escape quickly if (count($categories) == 0) { return ""; } $subcategory_text = wfMsg('sd_browsedata_subcategory'); $header = ""; $this->show_single_cat = $wgRequest->getCheck('_single'); if (!$this->show_single_cat) { $header .= $this->printCategoriesList($categories); } // if there are no subcategories or filters for this // category, escape now that we've (possibly) printed the // categories list if (count($this->next_level_subcategories) == 0 && count($this->applied_filters) == 0 && count($this->remaining_filters) == 0) { return $header; } $header .= ' <div id="drilldown-header">' . "\n"; if (count($this->applied_filters) > 0 || $this->subcategory) { $category_url = $this->makeBrowseURL($this->category); $header .= '<a href="' . $category_url . '" title="' . wfMsg('sd_browsedata_resetfilters') . '">' . str_replace('_', ' ', $this->category) . '</a>'; } else { $header .= str_replace('_', ' ', $this->category); } if ($this->subcategory) { $header .= " > "; $header .= "{$subcategory_text}: "; $subcat_string = str_replace('_', ' ', $this->subcategory); $remove_filter_url = $this->makeBrowseURL($this->category, $this->applied_filters); $header .= "\n" . ' <span class="drilldown-header-value">' . $subcat_string . '</span> <a href="' . $remove_filter_url . '" title="' . wfMsg('sd_browsedata_removesubcategoryfilter') . '"><img src="' . $sdgScriptPath . '/skins/filter-x.png" /></a> '; } foreach ($this->applied_filters as $i => $af) { $header .= !$this->subcategory && $i == 0 ? " > " : "\n\t\t\t\t\t<span class=\"drilldown-header-value\">&</span> "; $filter_label = $this->printFilterLabel($af->filter->name); // add an "x" to remove this filter, if it has more // than one value if (count($this->applied_filters[$i]->values) > 1) { $temp_filters_array = $this->applied_filters; array_splice($temp_filters_array, $i, 1); $remove_filter_url = $this->makeBrowseURL($this->category, $temp_filters_array, $this->subcategory); array_splice($temp_filters_array, $i, 0); $header .= $filter_label . ' <a href="' . $remove_filter_url . '" title="' . wfMsg('sd_browsedata_removefilter') . '"><img src="' . $sdgScriptPath . '/skins/filter-x.png" /></a> : '; } else { $header .= "{$filter_label}: "; } foreach ($af->values as $j => $fv) { if ($j > 0) { $header .= ' <span class="drilldown-or">' . wfMsg('sd_browsedata_or') . '</span> '; } $filter_text = $this->printFilterValue($af->filter, $fv->text); $temp_filters_array = $this->applied_filters; $removed_values = array_splice($temp_filters_array[$i]->values, $j, 1); $remove_filter_url = $this->makeBrowseURL($this->category, $temp_filters_array, $this->subcategory); array_splice($temp_filters_array[$i]->values, $j, 0, $removed_values); $header .= "\n\t" . ' <span class="drilldown-header-value">' . $filter_text . '</span> <a href="' . $remove_filter_url . '" title="' . wfMsg('sd_browsedata_removefilter') . '"><img src="' . $sdgScriptPath . '/skins/filter-x.png" /></a>'; } if ($af->search_term != null) { $temp_filters_array = $this->applied_filters; $removed_search_term = $temp_filters_array[$i]->search_term; $temp_filters_array[$i]->search_term = null; $remove_filter_url = $this->makeBrowseURL($this->category, $temp_filters_array, $this->subcategory); $temp_filters_array[$i]->search_term = $removed_search_term; $header .= "\n\t" . '<span class="drilldown-header-value">~ \'' . $af->search_term . '\'</span> <a href="' . $remove_filter_url . '" title="' . wfMsg('sd_browsedata_removefilter') . '"><img src="' . $sdgScriptPath . '/skins/filter-x.png" /> </a>'; } elseif ($af->lower_date != null || $af->upper_date != null) { $header .= "\n\t<span class=\"drilldown-header-value\">" . $af->lower_date_string . " - " . $af->upper_date_string . "</span>"; } } $header .= "</div>\n"; $drilldown_description = wfMsg('sd_browsedata_docu'); $header .= "\t\t\t\t<p>{$drilldown_description}</p>\n"; // display the list of subcategories on one line, and below // it every filter, each on its own line; each line will // contain the possible values, and, in parentheses, the // number of pages that match that value $header .= "\t\t\t\t<div class=\"drilldown-filters\">\n"; $cur_url = $this->makeBrowseURL($this->category, $this->applied_filters, $this->subcategory); $cur_url .= strpos($cur_url, '?') ? '&' : '?'; $this->createTempTable($this->category, $this->subcategory, $this->all_subcategories, $this->applied_filters); $num_printed_values = 0; if (count($this->next_level_subcategories) > 0) { $results_line = ""; // loop through to create an array of subcategory // names and their number of values, then loop through // the array to print them - we loop through twice, // instead of once, to be able to print a tag-cloud // display if necessary $subcat_values = array(); foreach ($this->next_level_subcategories as $i => $subcat) { $further_subcats = SDUtils::getCategoryChildren($subcat, true, 10); $num_results = $this->getNumResults($subcat, $further_subcats); $subcat_values[$subcat] = $num_results; } // get necessary values for creating the tag cloud, // if appropriate if ($sdgFiltersSmallestFontSize > 0 && $sdgFiltersLargestFontSize > 0) { $lowest_num_results = min($subcat_values); $highest_num_results = max($subcat_values); $num_results_midpoint = ($lowest_num_results + $highest_num_results) / 2; $font_size_midpoint = ($sdgFiltersSmallestFontSize + $sdgFiltersLargestFontSize) / 2; $num_results_per_font_pixel = ($highest_num_results + 1 - $lowest_num_results) / ($sdgFiltersLargestFontSize + 1 - $sdgFiltersSmallestFontSize); } foreach ($subcat_values as $subcat => $num_results) { if ($num_results > 0) { if ($num_printed_values++ > 0) { $results_line .= " ยท "; } $filter_text = str_replace('_', ' ', $subcat) . " ({$num_results})"; $filter_url = $cur_url . '_subcat=' . urlencode($subcat); if ($sdgFiltersSmallestFontSize > 0 && $sdgFiltersLargestFontSize > 0) { $font_size = round($font_size_midpoint + ($num_results - $num_results_midpoint) / $num_results_per_font_pixel); $results_line .= "\n\t\t\t\t\t" . '<a href="' . $filter_url . '" title="' . wfMsg('sd_browsedata_filterbysubcategory') . '" style="font-size: ' . $font_size . 'px">' . $filter_text . '</a>'; } else { $results_line .= "\n\t\t\t\t\t" . '<a href="' . $filter_url . '" title="' . wfMsg('sd_browsedata_filterbysubcategory') . '">' . $filter_text . '</a>'; } } } if ($results_line != "") { $header .= "\t\t\t\t\t<p><strong>{$subcategory_text}:</strong> {$results_line}</p>\n"; } } $filters = SDUtils::loadFiltersForCategory($this->category); foreach ($filters as $f) { foreach ($this->applied_filters as $af) { if ($af->filter->name == $f->name) { $header .= $this->printAppliedFilterLine($af); } } foreach ($this->remaining_filters as $rf) { if ($rf->name == $f->name) { $header .= $this->printUnappliedFilterLine($rf, $cur_url); } } } $header .= "\t\t\t\t</div> <!-- drilldown-filters -->\n"; return $header; }