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<?php |
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/* |
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Plugin Name: Categorized Tag Cloud |
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Plugin URI: http://www.whiletrue.it/ |
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Description: Takes the website tags and aggregates them into a categorized cloud widget for sidebar. |
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Author: WhileTrue |
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Version: 1.0 |
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Author URI: http://www.whiletrue.it/ |
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*/ |
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|
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/* |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License version 2, |
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as published by the Free Software Foundation. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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|
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function categorized_tag_cloud ($instance) { |
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|
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$plugin_name = 'categorized-tag-cloud'; |
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|
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// RETRIEVE TAGS |
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$words_color = $instance['words_color']; |
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$hover_color = (isset($instance['hover_color']) && $instance['hover_color']!='') ? $instance['hover_color'] : 'black'; |
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$number = (isset($instance['words_number']) && is_numeric($instance['words_number']) && $instance['words_number'] >0) ? $instance['words_number'] : 20; |
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$smallest_size = (isset($instance['smallest_size']) && is_numeric($instance['smallest_size']) && $instance['smallest_size']>0) ? $instance['smallest_size'] : 7; |
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$largest_size = (isset($instance['largest_size']) && is_numeric($instance['largest_size']) && $instance['largest_size'] >0) ? $instance['largest_size'] : 14; |
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|
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$exclude_items = array(); |
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$category_filters = (array)json_decode($instance['category_filters']); |
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for ($i=0; $i<count($category_filters['cat']); $i++) { |
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if (is_category($category_filters['cat'][$i]) || (is_single() && in_category($category_filters['cat'][$i]))) { |
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$exclude_items[] = $category_filters['tag'][$i]; |
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} |
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} |
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|
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$tags = wp_tag_cloud('smallest=14&largest=30&number='.$number.'&order=RAND&format=array&exclude='.implode(',',$exclude_items) ); |
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|
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$out = ''; |
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$out_style = ''; |
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foreach ($tags as $num=>$tag) { |
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$i = $num+1; |
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$out .= '<span id="'.$plugin_name.'-el-'.$i.'">'.$tag.'</span> '; |
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|
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$the_color = ($words_color=='') ? '#'.str_pad(dechex(rand(0,4096)),3,'0',STR_PAD_LEFT) : $words_color; |
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$out_style .= ' |
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#'.$plugin_name.'-el-'.$i.' a, #'.$plugin_name.'-el-'.$i.' a:visited { text-decoration:none; color:'.$the_color.'; }'; |
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} |
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|
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return ' |
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<div id="'.$plugin_name.'">'.$out.'</div> |
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<style> |
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'.$out_style.' |
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</style>'; |
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} |
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|
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|
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////////// |
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|
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|
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/** |
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* CategorizedTagCloudWidget Class |
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*/ |
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class CategorizedTagCloudWidget extends WP_Widget { |
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/** constructor */ |
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function CategorizedTagCloudWidget() { |
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$this->options = array( |
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array( |
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'name'=>'title', 'label'=>'Title:', |
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'type'=>'text'), |
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array( |
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'name'=>'words_number', 'label'=>'Number of words to show:', |
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'type'=>'text'), |
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array( |
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'name'=>'words_color', 'label'=>'Word color (random if not entered):', |
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'type'=>'text'), |
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array( |
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'name'=>'hover_color', 'label'=>'Hover color (black if not entered):', |
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'type'=>'text'), |
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array( |
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'name'=>'smallest_font', 'label'=>'Smallest font size (default is 7):', |
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'type'=>'text'), |
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array( |
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'name'=>'largest_font', 'label'=>'Largest font size (default is 14):', |
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'type'=>'text'), |
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array( |
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'label' => __( 'Category filters', 'categorized-tag-cloud' ), |
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'type' => 'separator' ), |
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array( |
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'type' => 'category_filters' ), |
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); |
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|
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$control_ops = array('width' => 500); |
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parent::WP_Widget(false, 'Categorized Tag Cloud', array(), $control_ops); |
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} |
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|
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function widget($args, $instance) { |
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extract( $args ); |
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$title = apply_filters('widget_title', $instance['title']); |
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echo $before_widget; |
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if ( $title ) echo $before_title . $title . $after_title; |
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echo categorized_tag_cloud($instance).$after_widget; |
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} |
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|
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function update($new_instance, $old_instance) { |
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$instance = $old_instance; |
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|
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foreach ($this->options as $val) { |
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if ($val['type']=='text') { |
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$instance[$val['name']] = strip_tags($new_instance[$val['name']]); |
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} else if ($val['type']=='checkbox') { |
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$instance[$val['name']] = ($new_instance[$val['name']]=='on') ? true : false; |
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} |
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|
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// CATEGORY FILTERS |
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$instance['category_filters'] = ''; |
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|
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if (is_numeric($_POST['categorized-tag-cloud-num-filters'])) { |
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$instance['category_filters'] = array(); |
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for ($i=0; $i<$_POST['categorized-tag-cloud-num-filters']; $i++) { |
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if ($_POST['categorized-tag-cloud-cat-'.$i] == '' && $_POST['categorized-tag-cloud-tag-'.$i] == '') { |
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continue; |
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} |
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$instance['category_filters']['cat'][] = esc_html($_POST['categorized-tag-cloud-cat-'.$i]); |
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$instance['category_filters']['tag'][] = esc_html($_POST['categorized-tag-cloud-tag-'.$i]); |
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} |
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$instance['category_filters'] = json_encode($instance['category_filters']); |
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} |
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} |
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|
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return $instance; |
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} |
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|
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function form($instance) { |
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if (empty($instance)) { |
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$instance['title'] = 'Categorized Tag Cloud'; |
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$instance['words_number'] = 20; |
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$instance['words_color'] = ''; |
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$instance['smallest_font'] = '7'; |
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$instance['largest_font'] = '14'; |
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$instance['horizontal_spread'] = '60'; |
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$instance['vertical_spread'] = '60'; |
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} |
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|
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foreach ($this->options as $val) { |
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if ($val['type']=='separator') { |
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if (isset($val['label']) && $val['label']!='') { |
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echo '<h3>'.$val['label'].'</h3>'; |
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} else { |
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echo '<hr />'; |
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} |
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if (isset($val['notes']) && $val['notes']!='') { |
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echo '<div class="description">'.$val['notes'].'</div>'; |
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} |
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} else if ($val['type']=='category_filters') { |
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$category_filters = (array)json_decode($instance['category_filters']); |
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echo '<input name="categorized-tag-cloud-num-filters" type="hidden" value="'.(count($category_filters)+2).'" />'; |
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echo '<table> |
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<tr><th>'.__('category slug', 'categorized-tag-cloud').'</th><th style="min-width:300px">'.__('excluded tags id, comma separated', 'categorized-tag-cloud').'</th></tr>'; |
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for ($i=0; $i<count($category_filters['cat']); $i++) { |
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echo ' |
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<tr> |
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<td><input type="text" name="categorized-tag-cloud-cat-'.$i.'" value="'.$category_filters['cat'][$i].'" /></td> |
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<td><input type="text" name="categorized-tag-cloud-tag-'.$i.'" value="'.$category_filters['tag'][$i].'" style="min-width:300px" /></td></tr>'; |
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} |
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for ($j=$i; $j<($i+2); $j++) { |
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echo ' |
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<tr> |
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<td><input type="text" name="categorized-tag-cloud-cat-'.$j.'" /></td> |
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<td><input type="text" name="categorized-tag-cloud-tag-'.$j.'" style="min-width:300px" /></td></tr>'; |
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} |
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echo '</table>'; |
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} else if ($val['type']=='text') { |
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echo '<p> |
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<label for="'.$this->get_field_id($val['name']).'">'.__($val['label']).'</label> |
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'; |
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echo '<input class="widefat" id="'.$this->get_field_id($val['name']).'" name="'.$this->get_field_name($val['name']).'" type="text" value="'.esc_attr($instance[$val['name']]).'" />'; |
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echo '</p>'; |
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} else if ($val['type']=='checkbox') { |
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echo '<p> |
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<label for="'.$this->get_field_id($val['name']).'">'.__($val['label']).'</label> |
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'; |
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$checked = ($instance[$val['name']]) ? 'checked="checked"' : ''; |
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echo '<input id="'.$this->get_field_id($val['name']).'" name="'.$this->get_field_name($val['name']).'" type="checkbox" '.$checked.' />'; |
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echo '</p>'; |
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} |
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} |
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|
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|
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} |
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|
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} // class CategorizedTagCloudWidget |
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|
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// register CategorizedTagCloudWidget widget |
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add_action('widgets_init', create_function('', 'return register_widget("CategorizedTagCloudWidget");')); |
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|
