<?php
namespace W3TC;
class Util_Widget {
static $w3tc_dashboard_widgets = array();
/**
* Registers dashboard widgets.
*
* Handles POST data, sets up filters.
*
* @since 0.9.2.6
*/
static public function setup() {
global $w3tc_registered_widgets, $w3tc_registered_widget_controls, $w3tc_dashboard_control_callbacks;
$w3tc_dashboard_control_callbacks = array();
$screen = get_current_screen();
$update = false;
$widget_options = get_option( 'w3tc_dashboard_widget_options' );
if ( !$widget_options || !is_array( $widget_options ) )
$widget_options = array();
// Hook to register new widgets
// Filter widget order
if ( is_network_admin() ) {
do_action( 'w3tc_network_dashboard_setup' );
$dashboard_widgets = apply_filters( 'w3tc_network_dashboard_widgets', array() );
} else {
do_action( 'w3tc_widget_setup' );
$dashboard_widgets = apply_filters( 'w3tc_dashboard_widgets', array() );
}
foreach ( $dashboard_widgets as $widget_id ) {
$name = empty( $w3tc_registered_widgets[$widget_id]['all_link'] ) ? $w3tc_registered_widgets[$widget_id]['name'] : $w3tc_registered_widgets[$widget_id]['name'] . " <a href='{$w3tc_registered_widgets[$widget_id]['all_link']}' class='edit-box open-box'>" . __( 'View all' ) . '</a>';
Util_Widget::add( $widget_id, $name, $w3tc_registered_widgets[$widget_id]['callback'], $w3tc_registered_widget_controls[$widget_id]['callback'] );
}
if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset( $_POST['widget_id'] ) ) {
check_admin_referer( 'edit-dashboard-widget_' . $_POST['widget_id'], 'dashboard-widget-nonce' );
ob_start(); // hack - but the same hack wp-admin/widgets.php uses
Util_Widget::trigger_widget_control( $_POST['widget_id'] );
ob_end_clean();
}
if ( $update )
update_option( 'w3tc_dashboard_widget_options', $widget_options );
do_action( 'do_meta_boxes', $screen->id, 'normal', '' );
do_action( 'do_meta_boxes', $screen->id, 'side', '' );
}
static public function add2( $widget_id, $priority, $widget_name, $callback,
$control_callback = null, $location = 'normal', $header_text = null,
$header_class = '') {
$o = new _Util_Widget_Postponed( array(
'widget_id' => $widget_id,
'widget_name' => $widget_name,
'callback' => $callback,
'control_callback' => $control_callback,
'location' => $location,
'header_text' => $header_text,
'header_class' => $header_class
) );
add_action( 'w3tc_widget_setup',
array( $o, 'wp_dashboard_setup' ), $priority );
add_action( 'w3tc_network_dashboard_setup',
array( $o, 'wp_dashboard_setup' ), $priority );
self::$w3tc_dashboard_widgets[$widget_id] = '*';
}
/**
* Registers widget
*/
static public function add( $widget_id, $widget_name, $callback,
$control_callback = null, $location = 'normal', $header_text = null,
$header_class = '') {
$screen = get_current_screen();
global $w3tc_dashboard_control_callbacks;
if ( substr( $widget_name, 0, 1 ) != '<' )
$widget_name = '<div class="w3tc-widget-text">' . $widget_name .
'</div>';
// it's url
if ( $control_callback && current_user_can( 'edit_dashboard' ) &&
is_string( $control_callback ) ) {
if ( !$header_text ) {
$header_text = __( 'Configure' );
}
$widget_name .= ' <span class="w3tc-widget-configure postbox-title-action">' .
'<a href="' . esc_url( $control_callback ) .
'" class="edit-box open-box ' . esc_attr($header_class) . '">' . $header_text .
'</a></span>';
}
// it's ajax callback
if ( $control_callback && current_user_can( 'edit_dashboard' ) &&
is_callable( $control_callback ) ) {
$w3tc_dashboard_control_callbacks[$widget_id] = $control_callback;
if ( isset( $_GET['edit'] ) && $widget_id == $_GET['edit'] ) {
list( $url ) = explode( '#', add_query_arg( 'edit', false ), 2 );
$widget_name .= ' <span class="postbox-title-action">' .
'<a href="' . esc_url( $url ) . '">' . __( 'Cancel' ) .
'</a></span>';
$callback = array(
'\W3TC\Util_Widget',
'_dashboard_control_callback'
);
} else {
list( $url ) = explode( '#', add_query_arg( 'edit', $widget_id ), 2 );
$widget_name .= ' <span class="postbox-title-action">' .
'<a href="' . esc_url( "$url#$widget_id" ) .
'" class="edit-box open-box">' . __( 'Configure' ) .
'</a></span>';
}
}
$side_widgets = array();
$priority = 'core';
add_meta_box( $widget_id, $widget_name, $callback, $screen, $location, $priority );
}
/* Dashboard Widgets Controls */
static public function _dashboard_control_callback( $dashboard, $meta_box ) {
echo '<form action="" method="post" class="dashboard-widget-control-form">';
Util_Widget::trigger_widget_control( $meta_box['id'] );
wp_nonce_field( 'edit-dashboard-widget_' . $meta_box['id'], 'dashboard-widget-nonce' );
echo '<input type="hidden" name="widget_id" value="' . esc_attr( $meta_box['id'] ) . '" />';
submit_button( __( 'Submit' ) );
echo '</form>';
}
static public function list_widgets() {
return implode(',', array_keys(self::$w3tc_dashboard_widgets));
}
/**
* Calls widget control callback.
*
* @since 0.9.2.6
*
* @param int|bool $widget_control_id Registered Widget ID.
*/
static public function trigger_widget_control( $widget_control_id = false ) {
global $w3tc_dashboard_control_callbacks;
if ( is_scalar( $widget_control_id ) && $widget_control_id && isset( $w3tc_dashboard_control_callbacks[$widget_control_id] ) && is_callable( $w3tc_dashboard_control_callbacks[$widget_control_id] ) ) {
call_user_func( $w3tc_dashboard_control_callbacks[$widget_control_id], '', array( 'id' => $widget_control_id, 'callback' => $w3tc_dashboard_control_callbacks[$widget_control_id] ) );
}
}
}
class _Util_Widget_Postponed {
private $data = array();
public function __construct( $data ) {
$this->data = $data;
}
public function wp_dashboard_setup() {
Util_Widget::add(
$this->data['widget_id'],
$this->data['widget_name'],
$this->data['callback'],
$this->data['control_callback'],
$this->data['location'],
$this->data['header_text'],
$this->data['header_class']
);
}
}