Reapply Add a dashboard widget for flushing URL's

Closes #303

Generic_Plugin_PageCachePurge.php

@@ -0,0 +1,101 @@
+<?php
+namespace W3TC;
+/**
+ * Purge page caches by URL
+ */
+
+
+
+/**
+ * Class Generic_Plugin_PageCachePurge
+ */
+class Generic_Plugin_PageCachePurge {
+	/**
+	 * Array of urls
+	 *
+	 * @var array
+	 */
+	var $_urls = array();
+
+        /**
+	 * Config
+	 */
+	private $_config = null;
+
+	function __construct() {
+		$this->_config = Dispatcher::config();
+	}
+
+	/**
+	 * Runs plugin
+	 */
+	function run() {
+            if(! $this->_config->get_boolean( 'pgcache.enabled' )) {
+                // page cache is not enabled
+                return;
+            }
+
+		if ( Util_Admin::get_current_wp_page() == 'w3tc_dashboard' )
+			add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
+
+
+		add_action( 'w3tc_widget_setup', array(
+				$this,
+				'wp_dashboard_setup'
+			) );
+		add_action( 'w3tc_network_dashboard_setup', array(
+				$this,
+				'wp_dashboard_setup'
+			) );
+
+		if ( is_admin() ) {
+			add_action( 'wp_ajax_w3tc_action_purge_urls', array( $this, 'action_purge_urls' ) );
+		}
+
+	}
+
+	/**
+	 * Dashboard setup action
+	 *
+	 * @return void
+	 */
+	function wp_dashboard_setup() {
+
+		Util_Widget::add( 'w3tc_page_cache_purge',
+			'<div class="w3tc-widget-text">' .
+			__( 'Purge Page Caches', 'w3-total-cache' ) .
+			'</div>',
+			array( $this, 'widget_form' ),
+			null, 'normal' );
+	}
+
+	function widget_form() {
+		include W3TC_INC_WIDGET_DIR . '/pagepurge.php';
+	}
+
+	function action_purge_urls() {
+
+
+		$urls = Util_Request::get_array( 'purge_urls' );
+                $Flusher = new PgCache_Flush();
+
+                $cache = $Flusher->_get_cache();
+                $mobile_groups = $Flusher->_get_mobile_groups();
+                $referrer_groups = $Flusher->_get_referrer_groups();
+                $encryptions = $Flusher->_get_encryptions();
+                $compressions = $Flusher->_get_compressions();
+
+                foreach ( $urls as $url ) {
+                        $Flusher->_flush_url( $url, $cache, $mobile_groups,
+                                $referrer_groups, $encryptions, $compressions );
+                }
+                echo 'URL(s) successfully flushed';
+		wp_die();
+	}
+
+	public function enqueue() {
+		wp_enqueue_style( 'w3tc-widget' );
+		wp_enqueue_script( 'w3tc-metadata' );
+		wp_enqueue_script( 'w3tc-widget' );
+	}
+}

Root_Loader.php

@@ -39,6 +39,7 @@ function __construct() {
 			$plugins[] = new UsageStatistics_Plugin();
 
 		if ( is_admin() ) {
+			$plugins[] = new Generic_Plugin_PageCachePurge();
 			$plugins[] = new Generic_Plugin_Admin();
 			$plugins[] = new BrowserCache_Plugin_Admin();
 			$plugins[] = new DbCache_Plugin_Admin();

inc/widget/pagepurge.php

@@ -0,0 +1,14 @@
+<?php
+namespace W3TC;
+
+if ( !defined( 'W3TC' ) )
+	die();
+
+?>
+<form action="" xmlns="http://www.w3.org/1999/html" method="post">
+    <textarea id="purge_urls" name="purge_urls"></textarea>
+    <p> Enter each URL on a new line </p>
+<p>
+    <input id="submit_purge_urls" type="submit" class="button button-primary button-large" value="<?php _e( 'Purge', 'w3-total-cache' ) ?>"/>
+</p>
+</form>

pub/js/widget.js

@@ -46,5 +46,19 @@ jQuery(function() {
             jQuery('#buy-w3-service-area').empty();
             jQuery('#buy-w3-service').attr("disabled", "disabled");
         });
+
+        jQuery('#submit_purge_urls').click(function(){
+                var data = {
+                    'action': 'w3tc_action_purge_urls',
+                    'purge_urls': jQuery('#purge_urls').val()
+                };
+
+		jQuery.post(ajaxurl, data, function(response) {
+			alert(response);
+		});
+                jQuery('#purge_urls').val('')
+                return false;
+        })
+
     });
 });