نحوه ی ایجاد افزونه آواتار مدیر برای وردپرس

&lt;?php<br />// Silence is golden.<br />?&gt;   

 &lt;?php<br />/**<br /> * @package Avatar_Manager<br /> */<br />/*<br />Plugin Name: Avatar Manager<br />Plugin URI: http://wordpress.org/extend/plugins/avatar-manager/<br />Description: Avatar Manager for WordPress is a sweet and simple plugin for storing avatars locally and more. Easily.<br />Version: 1.0.0<br />Author:Cătălin Dogaru<br />Author URI:&lt;a href="http://profiles.wordpress.org/cdog/"&gt;http://profiles.wordpress.org/cdog/&lt;/a&gt;<br />License: GPLv2 or later<br />*/<br />?&gt;<br />  

<major>.<minor>.<patch>   

  /*<br />Copyright © 2013 Cătălin Dogaru<br /><br />This program is free software; you can redistribute it and/or modify it under<br />the terms of the GNU General Public License as published by the Free Software<br />Foundation; either version 2 of the License, or (at your option) any later<br />version.<br /><br />This program is distributed in the hope that it will be useful, but WITHOUT ANY<br />WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A<br />PARTICULAR PURPOSE. See the GNU General Public License for more details.<br /><br />You should have received a copy of the GNU General Public License along with<br />this program; if not, write to the Free Software Foundation, Inc., 51 Franklin<br />Street, Fifth Floor, Boston, MA 02110-1301, USA.<br />*/ 

define( 'AVATAR_MANAGER_VERSION', '1.0.0' );<br />define( 'AVATAR_MANAGER_PLUGIN_URL', plugin_dir_url( __FILE__ ) );<br />define( 'AVATAR_MANAGER_AVATAR_UPLOADS', 0 );<br />define( 'AVATAR_MANAGER_DEFAULT_SIZE', 96 );   

 /**
 * Sets up plugin defaults and makes Avatar Manager available for translation.
 *
 * @uses load_theme_textdomain() For translation/localization support.
 * @uses plugin_basename() For retrieving the basename of the plugin.
 *
 * @since Avatar Manager 1.0.0
 */
function avatar_manager_init() {
    // Makes Avatar Manager available for translation.
    load_plugin_textdomain( 'avatar-manager', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
}

add_action( 'init', 'avatar_manager_init' );   

 /**
 * Registers sanitization callback and plugin setting fields.
 *
 * @uses register_setting() For registering a setting and its sanitization
 * callback.
 * @uses add_settings_field() For registering a settings field to a settings
 * page and section.
 * @uses __() For retrieving the translated string from the translate().
 *
 * @since Avatar Manager 1.0.0
 */
function avatar_manager_admin_init() {
    // Registers plugin setting and its sanitization callback.
    register_setting( 'discussion', 'avatar_manager', 'avatar_manager_sanitize_options' );

    // Registers Avatar Uploads settings field under the Settings Discussion
    // Screen.
    add_settings_field( 'avatar-manager-avatar_uploads', __( 'Avatar Uploads', 'avatar-manager' ), 'avatar_manager_avatar_uploads_settings_field', 'discussion', 'avatars' );

    // Registers Default Size settings field under the Settings Discussion
    // Screen.
    add_settings_field( 'avatar-manager-default-size', __( 'Default Size', 'avatar-manager' ), 'avatar_manager_default_size_settings_field', 'discussion', 'avatars' );
}

add_action( 'admin_init', 'avatar_manager_admin_init' );  

/**
 * Returns plugin default options.
 *
 * @since Avatar Manager 1.0.0
 *
 * @return array Plugin default options.
 */
function avatar_manager_get_default_options() {
    $options = array(
        'avatar_uploads' => AVATAR_MANAGER_AVATAR_UPLOADS,
        'default_size'   => AVATAR_MANAGER_DEFAULT_SIZE
    );

    return $options;
}   

  /**
 * Returns plugin options.
 *
 * @uses get_option() For getting values for a named option.
 * @uses avatar_manager_get_default_options() For retrieving plugin default
 * options.
 *
 * @since Avatar Manager 1.0.0
 *
 * @return array Plugin options.
 */
function avatar_manager_get_options() {
    return get_option( 'avatar_manager', avatar_manager_get_default_options() );
} 

  /**
 * Sanitizes and validates plugin options.
 *
 * @uses avatar_manager_get_default_options() For retrieving plugin default
 * options.
 * @uses absint() For converting a value to a non-negative integer.
 *
 * @since Avatar Manager 1.0.0
 *
 * @return array Sanitized plugin options.
 */
function avatar_manager_sanitize_options( $input ) {
    $options = avatar_manager_get_default_options();

    if ( isset( $input['avatar_uploads'] ) && trim( $input['avatar_uploads'] ) )
        $options['avatar_uploads'] = trim( $input['avatar_uploads'] ) ? 1 : 0;

    if ( isset( $input['default_size'] ) && is_numeric( trim( $input['default_size'] ) ) ) {
        $options['default_size'] = absint( trim( $input['default_size'] ) );

        if ( $options['default_size'] < 1 )
            $options['default_size'] = 1;
        elseif ( $options['default_size'] > 512 )
            $options['default_size'] = 512;
    }

    return $options;
} 

 /**
 * Prints Avatar Uploads settings field.
 *
 * @uses avatar_manager_get_options() For retrieving plugin options.
 * @uses _e() For displaying the translated string from the translate().
 * @uses checked() For comparing two given values.
 *
 * @since Avatar Manager 1.0.0
 */
function avatar_manager_avatar_uploads_settings_field() {
    // Retrieves plugin options.
    $options = avatar_manager_get_options();
    ?>
    <fieldset>
        <legend class="screen-reader-text">
            <span>
                <?php _e( 'Avatar Uploads', 'avatar-manager' ); ?>
            </span>
        </legend><!-- .screen-reader-text -->
        <label>
            <input <?php checked( $options['avatar_uploads'], 1, true ); ?> name="avatar_manager[avatar_uploads]" type="checkbox" value="1">
            <?php _e( 'Anyone can upload', 'avatar-manager' ); ?>
        </label>
    </fieldset>
    <?php
}  

 /**
 * Prints Default Size settings field.
 *
 * @uses avatar_manager_get_options() For retrieving plugin options.
 * @uses _e() For displaying the translated string from the translate().
 *
 * @since Avatar Manager 1.0.0
 */
function avatar_manager_default_size_settings_field() {
    // Retrieves plugin options.
    $options = avatar_manager_get_options();
    ?>
    <fieldset>
        <legend class="screen-reader-text">
            <span>
                <?php _e( 'Default Size', 'avatar-manager' ); ?>
            </span>
        </legend><!-- .screen-reader-text -->
        <label>
            <?php _e( 'Default size of the avatar image', 'avatar-manager' ); ?>
            <input class="small-text" min="1" name="avatar_manager[default_size]" step="1" type="number" value="<?php echo $options['default_size']; ?>">
        </label>
    </fieldset>
    <?php
}  

 /**
 * Prints Avatar section.
 *
 * @uses avatar_manager_get_options() For retrieving plugin options.
 * @uses get_post_meta() For retrieving attachment meta fields.
 * @uses remove_filter() For removing a function attached to a specified action
 * hook.
 * @uses _e() For displaying the translated string from the translate().
 * @uses checked() For comparing two given values.
 * @uses get_avatar() For retrieving the avatar for a user.
 * @uses esc_attr() For escaping HTML attributes.
 * @uses add_query_arg() For retrieving a modified URL (with) query string.
 * @uses self_admin_url() For retrieving an admin url link with optional path
 * appended.
 * @uses current_user_can() For checking whether the current user has a certain
 * capability.
 * @uses submit_button() For echoing a submit button, with provided text and
 * appropriate class.
 * @uses __() For retrieving the translated string from the translate().
 *
 * @since Avatar Manager 1.0.0
 *
 * @param array $profileuser User to edit.
 */
function avatar_manager_edit_user_profile( $profileuser ) {
    // Retrieves plugin options.
    $options = avatar_manager_get_options();

    $avatar_type = isset( $profileuser->avatar_manager_avatar_type ) ? $profileuser->avatar_manager_avatar_type : 'gravatar';

    if ( isset( $profileuser->avatar_manager_custom_avatar ) ) {
        // Retrieves attachment meta fields based on attachment ID.
        $custom_avatar_rating   = get_post_meta( $profileuser->avatar_manager_custom_avatar, '_avatar_manager_custom_avatar_rating', true );
        $user_has_custom_avatar = get_post_meta( $profileuser->avatar_manager_custom_avatar, '_avatar_manager_is_custom_avatar', true );
    }

    if ( ! isset( $custom_avatar_rating ) || empty( $custom_avatar_rating ) )
        $custom_avatar_rating = 'G';

    if ( ! isset( $user_has_custom_avatar ) || empty( $user_has_custom_avatar ) )
        $user_has_custom_avatar = false;

    if ( $user_has_custom_avatar )
        // Removes the function attached to the specified action hook.
        remove_filter( 'get_avatar', 'avatar_manager_get_avatar' );
    ?>
    <h3>
        <?php _e( 'Avatar', 'avatar-manager' ); ?>
    </h3>
    <table class="form-table">
        ...
    </table><!-- .form-table -->
    <?php
}

add_action( 'show_user_profile', 'avatar_manager_edit_user_profile' );
add_action( 'edit_user_profile', 'avatar_manager_edit_user_profile' );
  

 <tr>
    <th>
        <?php _e( 'Display this avatar', 'avatar-manager' ); ?>
    </th>
    <td class="avatar-manager">
        <fieldset>
            <legend class="screen-reader-text">
                <span>
                    <?php _e( 'Display this avatar', 'avatar-manager' ); ?>
                </span><!-- .screen-reader-text -->
            </legend>
            <label>
                <input <?php checked( $avatar_type, 'gravatar', true ); ?> name="avatar_manager_avatar_type" type="radio" value="gravatar">
                <?php echo get_avatar( $profileuser->ID, 32, '', false ); ?>
                <?php _e( 'Gravatar', 'avatar-manager' ); ?>
                <span class="description">
                    <?php _e( '<a href="http://codex.wordpress.org/How_to_Use_Gravatars_in_WordPress" target="_blank">More information</a>', 'avatar-manager' ); ?>
                </span><!-- .description -->
            </label>
            <?php if ( $user_has_custom_avatar ) : ?>
                <br>
                <label>
                    <input <?php checked( $avatar_type, 'custom', true ); ?> name="avatar_manager_avatar_type" type="radio" value="custom">
                    <?php echo avatar_manager_get_custom_avatar( $profileuser->ID, 32, '', false ); ?>
                    <?php _e( 'Custom', 'avatar-manager' ); ?>
                </label>
            <?php endif; ?>
            <?php
            if ( $user_has_custom_avatar && ( current_user_can( 'upload_files' ) || $options['avatar_uploads'] ) ) {
                $href = esc_attr( add_query_arg( array(
                    'action'                       => 'update',
                    'avatar_manager_action'        => 'remove-avatar',
                    'avatar_manager_custom_avatar' => $profileuser->avatar_manager_custom_avatar,
                    'user_id'                      => $profileuser->ID
                ),
                self_admin_url( IS_PROFILE_PAGE ? 'profile.php' : 'user-edit.php' ) ) );
                ?>
                <a class="delete" href="<?php echo wp_nonce_url( $href, 'update-user_' . $profileuser->ID ); ?>" onclick="return showNotice.warn();">
                    <?php _e( 'Delete', 'avatar-manager' ); ?>
                </a><!-- .delete -->
                <?php
            }
            ?>
        </fieldset>
    </td><!-- .avatar-manager -->
</tr>  

 <?php if ( current_user_can( 'upload_files' ) || $options['avatar_uploads'] ) : ?>
    <tr>
        <th>
            <?php _e( 'Select Image', 'avatar-manager' ); ?>
        </th>
        <td>
            <fieldset>
                <legend class="screen-reader-text">
                    <span>
                        <?php _e( 'Select Image', 'avatar-manager' ); ?>
                    </span>
                </legend><!-- .screen-reader-text -->
                <label class="description" for="avatar-manager-upload-avatar">
                    <?php _e( 'Choose an image from your computer:', 'avatar-manager' ); ?>
                </label><!-- .description -->
                <br>
                <input name="avatar_manager_import" type="file">
                <?php submit_button( __( 'Upload', 'avatar-manager' ), 'button', 'avatar-manager-upload-avatar', false ); ?>
            </fieldset>
        </td>
    </tr>
<?php endif; ?>  

 <?php if ( $user_has_custom_avatar ) : ?>
    <tr>
        <th>
            <?php _e( 'Avatar Rating', 'avatar-manager' ); ?>
        </th>
        <td>
            <fieldset>
                <legend class="screen-reader-text">
                    <span>
                        <?php _e( 'Avatar Rating', 'avatar-manager' ); ?>
                    </span>
                </legend><!-- .screen-reader-text -->
                <?php
                $ratings = array(
                    // Translators: Content suitability rating:
                    // http://bit.ly/89QxZA
                    'G'  => __( 'G &#8212; Suitable for all audiences', 'avatar-manager' ),
                    // Translators: Content suitability rating:
                    // http://bit.ly/89QxZA
                    'PG' => __( 'PG &#8212; Possibly offensive, usually for audiences 13 and above', 'avatar-manager' ),
                    // Translators: Content suitability rating:
                    // http://bit.ly/89QxZA
                    'R'  => __( 'R &#8212; Intended for adult audiences above 17', 'avatar-manager' ),
                    // Translators: Content suitability rating:
                    // http://bit.ly/89QxZA
                    'X'  => __( 'X &#8212; Even more mature than above', 'avatar-manager' )
                );

                foreach ( $ratings as $key => $rating ) {
                    ?>
                    <label>
                        <input <?php checked( $custom_avatar_rating, $key, true ); ?> name="avatar_manager_custom_avatar_rating" type="radio" value="<?php echo esc_attr( $key ); ?>">
                        <?php echo $rating; ?>
                    </label>
                    <br>
                    <?php
                }
                ?>
                <span class="description">
                    <?php _e( 'Choose a rating for your custom avatar.', 'avatar-manager' ); ?>
                </span><!-- .description -->
            </fieldset>
        </td>
    </tr>
<?php endif; ?>  

#profile-page .avatar-manager img {
    margin: 2px 0;
    vertical-align: middle;
}

#profile-page .avatar-manager .delete {
    color: red;
    padding: 2px;
}

#profile-page .avatar-manager .delete:hover {
    background: red;
    color: #fff;
    text-decoration: none;
}   

 jQuery( document ).ready( function() {
    jQuery( '#your-profile' ).attr( 'enctype', 'multipart/form-data' );
} );  

 /**
 * Enqueues plugin scripts and styles for Users Your Profile Screen.
 *
 * @uses wp_register_style() For registering a CSS style file.
 * @uses wp_enqueue_style() For enqueuing a CSS style file.
 * @uses wp_register_script() For registering a JS script file.
 * @uses wp_enqueue_script() For enqueuing a JS script file.
 *
 * @since Avatar Manager 1.0.0
 */
function avatar_manager_admin_enqueue_scripts() {
    global $hook_suffix;

    if ( $hook_suffix == 'profile.php' || $hook_suffix == 'user-edit.php' ) {
        // Registers plugin CSS style file.
        wp_register_style( 'avatar-manager.css', AVATAR_MANAGER_PLUGIN_URL . 'avatar-manager.css', array(), '1.0.0' );

        // Enqueues plugin CSS style file.
        wp_enqueue_style( 'avatar-manager.css' );

        // Registers plugin JS script file.
        wp_register_script( 'avatar-manager.js', AVATAR_MANAGER_PLUGIN_URL . 'avatar-manager.js', array( 'jquery' ), '1.0.0' );

        // Enqueues plugin JS script file.
        wp_enqueue_script( 'avatar-manager.js' );
    }
}

add_action( 'admin_enqueue_scripts', 'avatar_manager_admin_enqueue_scripts' );