Dashboard Widget

Dashboard Widget

function wp_dashboard_setup() {
    wp_add_dashboard_widget( 'plugin_analytics_link', 'Analytics Link', array($this, 'wp_add_dashboard_widget_callback' ), array($this, 'wp_add_dashboard_widget_control_callback' ) );
}

function wp_add_dashboard_widget_callback() {
    if ( !$widget_options = get_option( 'dashboard_widget_options' ) )
        $widget_options = array();

    if ( !isset($widget_options['plugin_analytics_link']) )
        $widget_options['plugin_analytics_link'] = array( 'label' => '', 'link' => '' );

    $link_label = isset( $widget_options['plugin_analytics_link']['label'] ) ? $widget_options['plugin_analytics_link']['label'] : '';
    $link_url = isset( $widget_options['plugin_analytics_link']['url'] ) ? $widget_options['plugin_analytics_link']['url'] : '';

    ?>
        <p>Enter a link and then hide this widget. The link will show up in the header of the Google Analyticator Widget.</p>
        <p>Link Label: <?php echo $link_label ?></p>
        <p>Link Url: <a href="<?php echo esc_url( $link_url ) ?>"><?php echo esc_url( $link_url ) ?></a></p>
        <a href="/wp-admin/index.php?edit=plugin_analytics_link#plugin_analytics_link">Edit</a>
    <?php
}

    function wp_add_dashboard_widget_control_callback() {
    if ( !$widget_options = get_option( 'dashboard_widget_options' ) )
        $widget_options = array();

    if ( !isset($widget_options['plugin_analytics_link']) )
        $widget_options['plugin_analytics_link'] = array( 'label' => '', 'link' => '' );

    if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset($_POST['plugin-analytics-link']) ) {
        $widget_options['plugin_analytics_link']['label'] = sanitize_text_field( $_POST['plugin-analytics-link']['label'] );
        $widget_options['plugin_analytics_link']['url'] = esc_url_raw( $_POST['plugin-analytics-link']['url'] );
        update_option( 'dashboard_widget_options', $widget_options );
        return;
    }

    $link_label = isset( $widget_options['plugin_analytics_link']['label'] ) ? $widget_options['plugin_analytics_link']['label'] : '';
    $link_url = isset( $widget_options['plugin_analytics_link']['url'] ) ? $widget_options['plugin_analytics_link']['url'] : '';

    ?>
        <p>Enter link and then hide this widget. The link will show up in the header of the Google Analyticator Widget.</p>
        <p><label for="link-label">Link Label:</label>
            <input id="link-label" name="plugin-analytics-link[label]" type="text" value="<?php echo sanitize_text_field( $link_label ) ?>" /></p>
        <p><label for="link-url">Link Url:</label>
            <input id="link-url" name="plugin-analytics-link[url]" type="text" value="<?php echo esc_url( $link_url ) ?>" /></p>
    <?php
}