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<?php |
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/* |
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Plugin Name: Widget Context |
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Plugin URI: http://konstruktors.com/blog/ |
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Description: Display widgets in context. |
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Version: 0.6 |
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Author: Kaspars Dambis |
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Author URI: http://konstruktors.com/blog/ |
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|
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For changelog see readme.txt |
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---------------------------- |
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|
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Copyright 2009 Kaspars Dambis (email: kaspars@konstruktors.com) |
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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 as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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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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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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// Go! |
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new widget_context(); |
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|
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|
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class widget_context { |
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|
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var $options_name = 'widget_logic_options'; // Widget context settings (visibility, etc) |
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var $context_options = array(); |
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var $words_on_page = 0; |
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|
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|
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function widget_context() { |
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$this->plugin_path = WP_CONTENT_URL . '/plugins/'. plugin_basename(dirname(__FILE__)) . '/'; |
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|
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// Amend widget controls with Widget Context controls |
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add_action('sidebar_admin_setup', array($this, 'attach_widget_context_controls')); |
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// Enable widget context check only when viewed publicly, |
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add_action('wp_head', array($this, 'replace_widget_output_callback')); |
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// Add admin menu for config |
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// add_action('admin_menu', array($this, 'addAdminOptions')); |
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add_action('admin_enqueue_scripts', array($this, 'adminCSS')); |
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// Save widget context settings, when in admin area |
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add_filter('sidebars_widgets', array($this, 'filter_widgets')); |
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// Check the number of words on page |
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add_action('wp_print_scripts', array($this, 'count_words_on_page'), 750); |
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} |
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|
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|
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function addAdminOptions() { |
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// add_options_page('Widget Context', 'Widget Context', 10, basename(__FILE__), array($this, 'printAdminOptions')); |
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} |
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|
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|
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function adminCSS() { |
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wp_enqueue_style('widget-context-admin', $this->plugin_path . 'admin-style.css'); |
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} |
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|
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|
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function filter_widgets($sidebars_widgets) { |
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if (isset($_POST['wl']) && !empty($_POST['wl']) && is_admin()) { |
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$this->save_widget_context(); |
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unset($_POST['wl']); |
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|
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} elseif (!is_admin() && empty($this->context_options)) { |
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// This way we can check if a particular sidebar is empty |
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if (empty($this->context_options)) // Get widget context options and check visibility settings |
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$this->context_options = get_option($this->options_name); |
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|
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foreach ($sidebars_widgets as $sidebar_id => $widgets) { |
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// Check if widget will be shown |
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if ($sidebar_id != 'wp_inactive_widgets' && !empty($widgets)) { |
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foreach ($widgets as $widget_no => $widget_id) { |
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if (!$this->check_widget_visibility($this->context_options[$widget_id])) |
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unset($sidebars_widgets[$sidebar_id][$widget_no]); |
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} |
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} |
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} |
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} |
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|
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return $sidebars_widgets; |
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} |
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|
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|
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function save_widget_context() { |
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global $wp_registered_widgets; |
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|
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if (empty($_POST['widget-id'])) |
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$_POST['widget-id'] = array(); |
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|
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if (isset($_POST['sidebar']) && !empty($_POST['sidebar'])) |
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$sidebar_id = strip_tags((string)$_POST['sidebar']); |
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else |
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return; |
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|
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// Load widget context settings |
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$options = get_option($this->options_name); |
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|
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// Delete |
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if (isset($_POST['delete_widget']) && $_POST['delete_widget']) { |
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$del_id = $_POST['widget-id']; |
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unset($options[$del_id]); |
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} |
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|
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$new_widget_context_settings = array_values($_POST['wl']); |
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|
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// Add/Update |
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foreach($new_widget_context_settings as $widget_id => $widget_context) { |
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if (empty($widget_context)) |
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$widget_context = array(); |
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// If neither type of widget logic behaviour is selected, set to default |
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if (!isset($widget_context['incexc'])) |
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$widget_context['incexc'] = 'notselected'; |
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|
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$options[(string)$_POST['widget-id']] = $widget_context; |
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} |
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|
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update_option($this->options_name, (array)$options); |
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|
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return; |
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} |
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|
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|
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function attach_widget_context_controls() { |
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global $wp_registered_widget_controls, $wp_registered_widgets; |
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|
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foreach ($wp_registered_widgets as $widget_id => $widget_data) { |
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// Pass widget id as param, so that we can later call the original callback function |
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$wp_registered_widget_controls[$widget_id]['params'][]['widget_id'] = $widget_id; |
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// Store the original callback functions and replace them with Widget Context |
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$wp_registered_widget_controls[$widget_id]['callback_original_wc'] = $wp_registered_widget_controls[$widget_id]['callback']; |
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$wp_registered_widget_controls[$widget_id]['callback'] = array($this, 'replace_widget_control_callback'); |
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} |
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} |
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|
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|
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function replace_widget_output_callback() { |
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global $wp_registered_widgets; |
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|
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// Get widget logic options and check visibility settings |
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if (empty($this->context_options)) |
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$this->context_options = get_option($this->options_name); |
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|
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foreach ($wp_registered_widgets as $widget_id => $widget_data) { |
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// Check if widget will be shown |
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$do_show = $this->check_widget_visibility($this->context_options[$widget_id]); |
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|
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if (!$do_show) { // If not shown, remove it temporeraly from the list of existing widgets |
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unregister_sidebar_widget($widget_id); |
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} else { |
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//if (!$wp_registered_widgets[$widget_id]['params'][0]['widget_id']) { |
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// Save the original widget id |
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$wp_registered_widgets[$widget_id]['params'][]['widget_id'] = $widget_id; |
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// Store original widget callbacks |
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$wp_registered_widgets[$widget_id]['callback_original_wc'] = $wp_registered_widgets[$widget_id]['callback']; |
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$wp_registered_widgets[$widget_id]['callback'] = array($this, 'replace_widget_output'); |
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} |
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} |
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} |
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|
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|
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function replace_widget_output() { |
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global $wp_registered_widgets; |
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|
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$all_params = func_get_args(); |
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|
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if (is_array($all_params[2])) |
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$widget_id = $all_params[2]['widget_id']; |
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else |
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$widget_id = $all_params[1]['widget_id']; |
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|
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$widget_callback = $wp_registered_widgets[$widget_id]['callback_original_wc']; |
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|
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if (is_callable($widget_callback)) { |
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call_user_func_array($widget_callback, $all_params); |
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return true; |
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} elseif (!is_callable($widget_callback)) { |
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// print_r($all_params); |
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print '<!-- widget context: could not call the original callback function -->'; |
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return false; |
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} else { |
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return false; |
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} |
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} |
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|
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|
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function replace_widget_control_callback() { |
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global $wp_registered_widget_controls; |
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|
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$all_params = func_get_args(); |
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if (is_array($all_params[1])) |
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$widget_id = $all_params[1]['widget_id']; |
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else |
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$widget_id = $all_params[0]['widget_id']; |
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|
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$original_callback = $wp_registered_widget_controls[$widget_id]['callback_original_wc']; |
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|
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// Display the original callback |
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if (isset($original_callback) && is_callable($original_callback)) { |
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call_user_func_array($original_callback, $all_params); |
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} else { |
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print '<!-- widget context [controls]: could not call the original callback function -->'; |
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} |
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|
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print $this->display_widget_context($original_callback, $widget_id); |
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} |
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|
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|
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function get_current_url() { |
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if ($_SERVER['REQUEST_URI'] == '') |
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$uri = $_SERVER['REDIRECT_URL']; |
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else |
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$uri = $_SERVER['REQUEST_URI']; |
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|
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$url = (!empty($_SERVER['HTTPS'])) |
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? "https://".$_SERVER['SERVER_NAME'].$uri |
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: "http://".$_SERVER['SERVER_NAME'].$uri; |
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|
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if (substr($url, -1) == '/') |
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$url = substr($url, 0, -1); |
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|
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return $url; |
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} |
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|
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// Thanks to Drupal: http://api.drupal.org/api/function/drupal_match_path/6 |
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function match_path($path, $patterns) { |
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static $regexps; |
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|
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// get home url; |
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$home_url = get_bloginfo('url'); |
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|
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// add trailing slash if missing |
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if (substr($home_url, -1) !== '/') |
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$home_url = $home_url . '/'; |
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|
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// Check if user has specified the absolute url |
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// else strip home url and check only REQUEST_URI part |
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if ($path !== $home_url && !strstr($patterns, $_SERVER['SERVER_NAME'])) |
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$path = str_replace($home_url, '', $path); |
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|
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// Remove http:// from the url user has specified |
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if (strstr($patterns, 'http://')) |
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$patterns = str_replace('http://', '', $patterns); |
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|
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// Remove http:// from the current url |
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if (strstr($path, 'http://')) |
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$path = str_replace('http://', '', $path); |
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|
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if (!isset($regexps[$patterns])) { |
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$regexps[$patterns] = '/^('. preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/', '/(^|\|)\\\\<home\\\\>($|\|)/'), array('|', '.*', '\1'. preg_quote($home_url, '/') .'\2'), preg_quote($patterns, '/')) .')$/'; |
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} |
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return preg_match($regexps[$patterns], $path); |
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} |
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|
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|
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function count_words_on_page() { |
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global $wp_query; |
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|
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$this->words_on_page = 0; |
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|
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if (count($wp_query->posts) > 0 && function_exists('strip_shortcodes')) { |
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foreach ($wp_query->posts as $pid => $post_data) { |
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if ($post_data->post_status == 'publish') { |
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$pure_content = strip_shortcodes($post_data->post_content); |
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if (!is_single() && !is_page()) { |
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if (preg_match('/<!--more(.*?)?-->/', $pure_content, $matches)) { |
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$pure_content = explode($matches[0], $pure_content, 2); |
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$words_in_post = str_word_count(strip_tags($pure_content[0])); |
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} |
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} else { |
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$words_in_post = str_word_count(strip_tags($pure_content)); |
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} |
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|
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$this->words_on_page += $words_in_post; |
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} |
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} |
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} |
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} |
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|
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function check_widget_visibility($vis_settings = array()) { |
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global $paged; |
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|
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if (empty($vis_settings)) |
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return true; |
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|
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$do_show = true; |
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$do_show_by_select = false; |
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$do_show_by_url = false; |
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$do_show_by_word_count = false; |
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|
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// Check by current URL |
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if (!empty($vis_settings['url']['urls'])) { |
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// Split on line breaks |
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$split_urls = split("[\n ]+", (string)$vis_settings['url']['urls']); |
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$current_url = $this->get_current_url(); |
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foreach ($split_urls as $id => $check_url) { |
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$check_url = trim($check_url); |
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if ($check_url !== '') { |
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if ($this->match_path($current_url, $check_url)) |
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$do_show_by_url = true; |
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} else { |
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$ignore_url = true; |
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} |
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} |
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|
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if (!$ignore_url && $do_show_by_url) |
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$do_show_by_url = true; |
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else |
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$do_show_by_url = false; |
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} |
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|
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// Check by tag settings |
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if (!empty($vis_settings['location'])) { |
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$currently = array(); |
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|
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if (is_front_page() && $paged < 2) $currently['is_front_page'] = true; |
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if (is_home() && $paged < 2) $currently['is_home'] = true; |
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if (is_page() && !is_attachment()) $currently['is_page'] = true; |
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if (is_single() && !is_attachment()) $currently['is_single'] = true; |
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if (is_archive()) $currently['is_archive'] = true; |
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if (is_category()) $currently['is_category'] = true; |
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if (is_tag()) $currently['is_tag'] = true; |
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if (is_author()) $currently['is_author'] = true; |
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if (is_search()) $currently['is_search'] = true; |
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if (is_404()) $currently['is_404'] = true; |
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if (is_attachment()) $currently['is_attachment'] = true; |
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|
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// Check for selected pages/sections |
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$current_location = array_keys($currently); |
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$visibility_options = array_keys($vis_settings['location']); |
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foreach($current_location as $location_id) { |
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if (in_array($location_id, $visibility_options)) |
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$do_show_by_select = true; |
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} |
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|
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// Check for word count |
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$word_count_to_check = (int)$vis_settings['location']['word_count']; |
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|
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if ($vis_settings['location']['check_wordcount'] == 'on' && $word_count_to_check > 1) { |
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$check_type = $vis_settings['location']['check_wordcount_type']; |
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|
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if (($check_type == 'more') && ($this->words_on_page > $word_count_to_check)) { |
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print '<!-- showing because '. $this->words_on_page .' > '. $word_count_to_check .' -->'; |
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$do_show_by_word_count = true; |
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} elseif (($check_type == 'less') && ($this->words_on_page < $word_count_to_check)) { |
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print '<!-- showing because '. $this->words_on_page .' < '. $word_count_to_check .' -->'; |
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$do_show_by_word_count = true; |
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} |
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} else { |
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$ignore_word_count = true; |
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} |
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|
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if (!$ignore_word_count && $do_show_by_word_count) |
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$do_show_by_word_count = true; |
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else |
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$do_show_by_word_count = false; |
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|
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} |
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|
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// Combine all context checks |
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if ($do_show_by_word_count || $do_show_by_url || $do_show_by_select) |
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$one_is_true = true; |
| 369 |
elseif (!$do_show_by_word_count || !$do_show_by_url || !$do_show_by_select) |
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$one_is_true = false; |
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|
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|
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if (($vis_settings['incexc'] == 'selected') && $one_is_true) { |
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// Show on selected |
| 375 |
$do_show = true; |
| 376 |
} elseif (($vis_settings['incexc'] == 'notselected') && !$one_is_true) { |
| 377 |
// Hide on selected |
| 378 |
$do_show = true; |
| 379 |
} elseif (!empty($vis_settings['incexc'])) { |
| 380 |
$do_show = false; |
| 381 |
} else { |
| 382 |
$do_show = true; |
| 383 |
} |
| 384 |
|
| 385 |
// Hide if selected |
| 386 |
if ($vis_settings['incexc'] == 'hide') { |
| 387 |
$do_show = false; |
| 388 |
} |
| 389 |
|
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return $do_show; |
| 391 |
} |
| 392 |
|
| 393 |
|
| 394 |
function display_widget_context($args = array(), $wid = null) { |
| 395 |
|
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$group = 'location'; // Produces: wl[$wid][$group][homepage/singlepost/...] |
| 397 |
$options = get_option($this->options_name); |
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|
| 399 |
$out = '<div class="widget-context"><div class="widget-context-inside">'; |
| 400 |
$out .= '<div class="wl-header"><h5>Widget Context:</h5>' |
| 401 |
. '<p class="wl-visibility">' |
| 402 |
. $this->make_simple_radio($options, $wid, 'incexc', 'selected', '<strong>Show</strong> on selected') |
| 403 |
. $this->make_simple_radio($options, $wid, 'incexc', 'notselected', '<strong>Hide</strong> on selected') |
| 404 |
. $this->make_simple_radio($options, $wid, 'incexc', 'hide', 'Hide') |
| 405 |
. '</p></div>' |
| 406 |
|
| 407 |
. $this->show_support() // you can comment out this line, if you want. |
| 408 |
|
| 409 |
. '<div class="wl-wrap-columns">' |
| 410 |
|
| 411 |
. '<div class="wl-columns">' |
| 412 |
. '<div class="wl-column-2-1"><p>' |
| 413 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_front_page', __('Front Page')) |
| 414 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_home', __('Blog Index')) |
| 415 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_single', __('Single Post')) |
| 416 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_page', __('Single Page')) |
| 417 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_attachment', __('Attachment')) |
| 418 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_search', __('Search')) |
| 419 |
. '</p></div>' |
| 420 |
. '<div class="wl-column-2-2"><p>' |
| 421 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_archive', __('All Archives')) |
| 422 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_category', __('Category Archive')) |
| 423 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_tag', __('Tag Archive')) |
| 424 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_author', __('Author Archive')) |
| 425 |
. $this->make_simple_checkbox($options, $wid, $group, 'is_404', __('404 Error')) |
| 426 |
. '</p></div>' |
| 427 |
|
| 428 |
. '<div class="wl-word-count"><p>' |
| 429 |
. $this->make_simple_checkbox($options, $wid, $group, 'check_wordcount', __('Has')) |
| 430 |
. $this->make_simple_dropdown($options, $wid, $group, 'check_wordcount_type', array('less' => __('less'), 'more' => __('more')), '', __('than')) |
| 431 |
. $this->make_simple_textfield($options, $wid, $group, 'word_count', null, __('words')) |
| 432 |
. '</p></div>' |
| 433 |
|
| 434 |
. '</div>' |
| 435 |
|
| 436 |
. '<div class="wl-options">' |
| 437 |
. $this->make_simple_textarea($options, $wid, 'url', 'urls', __('or target by URL'), __('Enter one location fragment per line. Use <strong>*</strong> character as a wildcard. Use <strong><code><home></code></strong> to select front page. Examples: <strong><code>category/peace/*</code></strong> to target all <em>peace</em> category posts; <strong><code>2012/*</code></strong> to target articles written in year 2012.')) |
| 438 |
. '</div>' |
| 439 |
|
| 440 |
. '</div>' |
| 441 |
|
| 442 |
. $this->make_simple_textarea($options, $wid, 'general', 'notes', __('Notes (invisible to public)')) |
| 443 |
. '</div></div>'; |
| 444 |
|
| 445 |
return $out; |
| 446 |
} |
| 447 |
|
| 448 |
function printAdminOptions() { |
| 449 |
global $wp_registered_widget_controls, $wp_registered_widgets; |
| 450 |
|
| 451 |
print '<div class="wrap"><h2>'.__('Widget Context Plugin Settings') . '</h2></div>'; |
| 452 |
print '<pre>'; print_r(get_option($this->options_name)); print '</pre>'; |
| 453 |
} |
| 454 |
|
| 455 |
|
| 456 |
|
| 457 |
/* |
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|
| 459 |
Interface constructors |
| 460 |
|
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*/ |
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|
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function show_support() { |
| 464 |
$out = ''; |
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if (rand(1,3) == 1) |
| 466 |
$out = '<p class="show-support"><small>If you find <em>Widget Context</em> plugin useful, please <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=kaspars%40konstruktors%2ecom&item_name=Widget%20Context%20Plugin%20for%20WordPress&no_shipping=1&no_note=1&tax=0¤cy_code=EUR&lc=LV&bn=PP%2dDonationsBF&charset=UTF%2d8">donate</a> a few silver coins to support the development. Thanks. <a href="http://konstruktors.com/blog/">Kaspars</a></small></p>'; |
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|
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return $out; |
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} |
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|
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function makeSubmitButton() { |
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return '<p class="submit"><input type="submit" name="Submit" value="' . __('Save Options') . '" /></p>'; |
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} |
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|
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function make_simple_checkbox($options, $prefix, $id, $fieldname = null, $label) { |
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if ($fieldname !== null) { |
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$value = strip_tags($options[$prefix][$id][$fieldname]); |
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$fieldname = '[' . $fieldname . ']'; |
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} else { |
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$value = strip_tags($options[$prefix][$id]); |
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$fieldname = ''; |
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} |
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|
| 484 |
$prefix = '[' . $prefix . ']'; |
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$id = '[' . $id . ']'; |
| 486 |
|
| 487 |
if (!empty($value)) { |
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$value = 1; $checked = 'checked="checked"'; $classname = 'wl-active'; |
| 489 |
} else { |
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$value = 0; $checked = ''; $classname = 'wl-inactive'; |
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} |
| 492 |
|
| 493 |
$out = '<label class="' . $classname . '"><input type="checkbox" name="wl'. $prefix . $id . $fieldname . '" '. $checked .' /> ' |
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. $label . '</label> '; |
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|
| 496 |
return $out; |
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} |
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|
| 499 |
function make_simple_textarea($options, $prefix, $id, $fieldname = null, $label, $tip = null) { |
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$classname = $fieldname; |
| 501 |
|
| 502 |
if ($fieldname !== null) { |
| 503 |
$value = $options[$prefix][$id][$fieldname]; |
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$fieldname = '[' . $fieldname . ']'; |
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} else { |
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$value = $options[$prefix][$id]; |
| 507 |
$fieldname = ''; |
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} |
| 509 |
$prefix = '[' . $prefix . ']'; |
| 510 |
$id = '[' . $id . ']'; |
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|
| 512 |
if ($tip !== null) $tip = '<p class="wl-tip">' . $tip . '</p>'; |
| 513 |
|
| 514 |
$out = '<div class="wl-'. $classname .'">' |
| 515 |
. '<label for="wl'. $prefix . $id . $fieldname . '"><strong>' . $label . '</strong></label>' |
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. '<textarea name="wl'. $prefix . $id . $fieldname . '" id="wl'. $prefix . $id . $fieldname . '">'. stripslashes($value) .'</textarea>' |
| 517 |
. $tip . '</div>'; |
| 518 |
return $out; |
| 519 |
} |
| 520 |
|
| 521 |
function make_simple_textfield($options, $prefix, $id, $fieldname = null, $label_before = null, $label_after = null) { |
| 522 |
$classname = $fieldname; |
| 523 |
|
| 524 |
if ($fieldname !== null) { |
| 525 |
$value = $options[$prefix][$id][$fieldname]; |
| 526 |
$fieldname = '[' . $fieldname . ']'; |
| 527 |
} else { |
| 528 |
$value = $options[$prefix][$id]; |
| 529 |
$fieldname = ''; |
| 530 |
} |
| 531 |
$prefix = '[' . $prefix . ']'; |
| 532 |
$id = '[' . $id . ']'; |
| 533 |
|
| 534 |
return '<label class="wl-'. $classname . '">' . $label_before . ' ' |
| 535 |
. '<input type="text" name="wl'. $prefix . $id . $fieldname . '" value="'. $value .'" /> ' |
| 536 |
. $label_after . '</label>'; |
| 537 |
} |
| 538 |
|
| 539 |
function make_simple_radio($options, $id, $fieldname, $value, $label = null) { |
| 540 |
if ($options[$id][$fieldname] == $value) { |
| 541 |
$checked = 'checked="checked"'; $classname = 'wl-active'; |
| 542 |
} else { |
| 543 |
$checked = ''; $classname = 'wl-inactive'; |
| 544 |
} |
| 545 |
|
| 546 |
$id = '[' . $id . ']'; |
| 547 |
$fieldname = '[' . $fieldname . ']'; |
| 548 |
|
| 549 |
$out = '<label class="' . $classname . ' label-'. $value .'"><input type="radio" name="wl'. $id . $fieldname . '" value="'. $value .'" '. $checked .' /> ' |
| 550 |
. $label . '</label>'; |
| 551 |
|
| 552 |
return $out; |
| 553 |
} |
| 554 |
|
| 555 |
function make_simple_dropdown($options, $prefix, $id, $fieldname = null, $selection = array(), $label_before = null, $label_after = null) { |
| 556 |
$classname = $fieldname; |
| 557 |
|
| 558 |
if ($fieldname !== null) { |
| 559 |
$value = $options[$prefix][$id][$fieldname]; |
| 560 |
$fieldname = '[' . $fieldname . ']'; |
| 561 |
} else { |
| 562 |
$value = $options[$prefix][$id]; |
| 563 |
$fieldname = ''; |
| 564 |
} |
| 565 |
$prefix = '[' . $prefix . ']'; |
| 566 |
$id = '[' . $id . ']'; |
| 567 |
|
| 568 |
$list = '<label class="wl-'. $classname .'"><select name="wl'. $prefix . $id . $fieldname . '">' |
| 569 |
. $label_before . ' '; |
| 570 |
|
| 571 |
if (!empty($selection)) { |
| 572 |
foreach ($selection as $sid => $svalue) { |
| 573 |
if ($value == $sid) { |
| 574 |
$selected = 'selected="selected"'; |
| 575 |
} else { |
| 576 |
$selected = ''; |
| 577 |
} |
| 578 |
|
| 579 |
$list .= '<option value="' . $sid . '" ' . $selected . '>' . $svalue . '</option>'; |
| 580 |
} |
| 581 |
} else { |
| 582 |
$list .= '<option value="error" selected="selected">'. __('No options given') .'</option>'; |
| 583 |
} |
| 584 |
|
| 585 |
$list .= '</select> ' . $label_after . '</label>'; |
| 586 |
|
| 587 |
return $list; |
| 588 |
} |
| 589 |
} |
| 590 |
|
| 591 |
?> |
