post_submit_meta_box

post_submit_meta_box是一个WordPress函数，用于生成提交文章的元框。它接受两个参数：$post（文章对象）和$box（metabox数组）。

显示文章提交表单字段。

function post_submit_meta_box( $post, $args = array() ) {
	global $action;

	$post_id          = (int) $post->ID;
	$post_type        = $post->post_type;
	$post_type_object = get_post_type_object( $post_type );
	$can_publish      = current_user_can( $post_type_object->cap->publish_posts );
	?>
<div class="submitbox" id="submitpost">

<div id="minor-publishing">

	<?php // Hidden submit button early on so that the browser chooses the right button when form is submitted with Return key. ?>
	<div style="display:none;">
		<?php submit_button( __( 'Save' ), '', 'save' ); ?>
	</div>

	<div id="minor-publishing-actions">
		<div id="save-action">
			<?php
			if ( ! in_array( $post->post_status, array( 'publish', 'future', 'pending' ), true ) ) {
				$private_style = '';
				if ( 'private' === $post->post_status ) {
					$private_style = 'style="display:none"';
				}
				?>
				<input <?php echo $private_style; ?> type="submit" name="save" id="save-post" value="<?php esc_attr_e( 'Save Draft' ); ?>" class="button" />
				<span class="spinner"></span>
			<?php } elseif ( 'pending' === $post->post_status && $can_publish ) { ?>
				<input type="submit" name="save" id="save-post" value="<?php esc_attr_e( 'Save as Pending' ); ?>" class="button" />
				<span class="spinner"></span>
			<?php } ?>
		</div>

		<?php
		if ( is_post_type_viewable( $post_type_object ) ) :
			?>
			<div id="preview-action">
				<?php
				$preview_link = esc_url( get_preview_post_link( $post ) );
				if ( 'publish' === $post->post_status ) {
					$preview_button_text = __( 'Preview Changes' );
				} else {
					$preview_button_text = __( 'Preview' );
				}

				$preview_button = sprintf(
					'%1$s<span class="screen-reader-text"> %2$s</span>',
					$preview_button_text,
					/* translators: Accessibility text. */
					__( '(opens in a new tab)' )
				);
				?>
				<a class="preview button" href="<?php echo $preview_link; ?>" target="wp-preview-<?php echo $post_id; ?>" id="post-preview"><?php echo $preview_button; ?></a>
				<input type="hidden" name="wp-preview" id="wp-preview" value="" />
			</div>
			<?php
		endif;

		/**
		 * Fires after the Save Draft (or Save as Pending) and Preview (or Preview Changes) buttons
		 * in the Publish meta box.
		 *
		 * @since 4.4.0
		 *
		 * @param WP_Post $post WP_Post object for the current post.
		 */
		do_action( 'post_submitbox_minor_actions', $post );
		?>
		<div class="clear"></div>
	</div>

	<div id="misc-publishing-actions">
		<div class="misc-pub-section misc-pub-post-status">
			<?php _e( 'Status:' ); ?>
			<span id="post-status-display">
				<?php
				switch ( $post->post_status ) {
					case 'private':
						_e( 'Privately Published' );
						break;
					case 'publish':
						_e( 'Published' );
						break;
					case 'future':
						_e( 'Scheduled' );
						break;
					case 'pending':
						_e( 'Pending Review' );
						break;
					case 'draft':
					case 'auto-draft':
						_e( 'Draft' );
						break;
				}
				?>
			</span>

			<?php
			if ( 'publish' === $post->post_status || 'private' === $post->post_status || $can_publish ) {
				$private_style = '';
				if ( 'private' === $post->post_status ) {
					$private_style = 'style="display:none"';
				}
				?>
				<a href="#post_status" <?php echo $private_style; ?> class="edit-post-status hide-if-no-js" role="button"><span aria-hidden="true"><?php _e( 'Edit' ); ?></span> <span class="screen-reader-text"><?php _e( 'Edit status' ); ?></span></a>

				<div id="post-status-select" class="hide-if-js">
					<input type="hidden" name="hidden_post_status" id="hidden_post_status" value="<?php echo esc_attr( ( 'auto-draft' === $post->post_status ) ? 'draft' : $post->post_status ); ?>" />
					<label for="post_status" class="screen-reader-text"><?php _e( 'Set status' ); ?></label>
					<select name="post_status" id="post_status">
						<?php if ( 'publish' === $post->post_status ) : ?>
							<option<?php selected( $post->post_status, 'publish' ); ?> value='publish'><?php _e( 'Published' ); ?></option>
						<?php elseif ( 'private' === $post->post_status ) : ?>
							<option<?php selected( $post->post_status, 'private' ); ?> value='publish'><?php _e( 'Privately Published' ); ?></option>
						<?php elseif ( 'future' === $post->post_status ) : ?>
							<option<?php selected( $post->post_status, 'future' ); ?> value='future'><?php _e( 'Scheduled' ); ?></option>
						<?php endif; ?>
							<option<?php selected( $post->post_status, 'pending' ); ?> value='pending'><?php _e( 'Pending Review' ); ?></option>
						<?php if ( 'auto-draft' === $post->post_status ) : ?>
							<option<?php selected( $post->post_status, 'auto-draft' ); ?> value='draft'><?php _e( 'Draft' ); ?></option>
						<?php else : ?>
							<option<?php selected( $post->post_status, 'draft' ); ?> value='draft'><?php _e( 'Draft' ); ?></option>
						<?php endif; ?>
					</select>
					<a href="#post_status" class="save-post-status hide-if-no-js button"><?php _e( 'OK' ); ?></a>
					<a href="#post_status" class="cancel-post-status hide-if-no-js button-cancel"><?php _e( 'Cancel' ); ?></a>
				</div>
				<?php
			}
			?>
		</div>

		<div class="misc-pub-section misc-pub-visibility" id="visibility">
			<?php _e( 'Visibility:' ); ?>
			<span id="post-visibility-display">
				<?php
				if ( 'private' === $post->post_status ) {
					$post->post_password = '';
					$visibility          = 'private';
					$visibility_trans    = __( 'Private' );
				} elseif ( ! empty( $post->post_password ) ) {
					$visibility       = 'password';
					$visibility_trans = __( 'Password protected' );
				} elseif ( 'post' === $post_type && is_sticky( $post_id ) ) {
					$visibility       = 'public';
					$visibility_trans = __( 'Public, Sticky' );
				} else {
					$visibility       = 'public';
					$visibility_trans = __( 'Public' );
				}

				echo esc_html( $visibility_trans );
				?>
			</span>

			<?php if ( $can_publish ) { ?>
				<a href="#visibility" class="edit-visibility hide-if-no-js" role="button"><span aria-hidden="true"><?php _e( 'Edit' ); ?></span> <span class="screen-reader-text"><?php _e( 'Edit visibility' ); ?></span></a>

				<div id="post-visibility-select" class="hide-if-js">
					<input type="hidden" name="hidden_post_password" id="hidden-post-password" value="<?php echo esc_attr( $post->post_password ); ?>" />
					<?php if ( 'post' === $post_type ) : ?>
						<input type="checkbox" style="display:none" name="hidden_post_sticky" id="hidden-post-sticky" value="sticky" <?php checked( is_sticky( $post_id ) ); ?> />
					<?php endif; ?>

					<input type="hidden" name="hidden_post_visibility" id="hidden-post-visibility" value="<?php echo esc_attr( $visibility ); ?>" />
					<input type="radio" name="visibility" id="visibility-radio-public" value="public" <?php checked( $visibility, 'public' ); ?> /> <label for="visibility-radio-public" class="selectit"><?php _e( 'Public' ); ?></label><br />

					<?php if ( 'post' === $post_type && current_user_can( 'edit_others_posts' ) ) : ?>
						<span id="sticky-span"><input id="sticky" name="sticky" type="checkbox" value="sticky" <?php checked( is_sticky( $post_id ) ); ?> /> <label for="sticky" class="selectit"><?php _e( 'Stick this post to the front page' ); ?></label><br /></span>
					<?php endif; ?>

					<input type="radio" name="visibility" id="visibility-radio-password" value="password" <?php checked( $visibility, 'password' ); ?> /> <label for="visibility-radio-password" class="selectit"><?php _e( 'Password protected' ); ?></label><br />
					<span id="password-span"><label for="post_password"><?php _e( 'Password:' ); ?></label> <input type="text" name="post_password" id="post_password" value="<?php echo esc_attr( $post->post_password ); ?>"  maxlength="255" /><br /></span>

					<input type="radio" name="visibility" id="visibility-radio-private" value="private" <?php checked( $visibility, 'private' ); ?> /> <label for="visibility-radio-private" class="selectit"><?php _e( 'Private' ); ?></label><br />

					<p>
						<a href="#visibility" class="save-post-visibility hide-if-no-js button"><?php _e( 'OK' ); ?></a>
						<a href="#visibility" class="cancel-post-visibility hide-if-no-js button-cancel"><?php _e( 'Cancel' ); ?></a>
					</p>
				</div>
			<?php } ?>
		</div>

		<?php
		/* translators: Publish box date string. 1: Date, 2: Time. See https://www.php.net/manual/datetime.format.php */
		$date_string = __( '%1$s at %2$s' );
		/* translators: Publish box date format, see https://www.php.net/manual/datetime.format.php */
		$date_format = _x( 'M j, Y', 'publish box date format' );
		/* translators: Publish box time format, see https://www.php.net/manual/datetime.format.php */
		$time_format = _x( 'H:i', 'publish box time format' );

		if ( 0 !== $post_id ) {
			if ( 'future' === $post->post_status ) { // Scheduled for publishing at a future date.
				/* translators: Post date information. %s: Date on which the post is currently scheduled to be published. */
				$stamp = __( 'Scheduled for: %s' );
			} elseif ( 'publish' === $post->post_status || 'private' === $post->post_status ) { // Already published.
				/* translators: Post date information. %s: Date on which the post was published. */
				$stamp = __( 'Published on: %s' );
			} elseif ( '0000-00-00 00:00:00' === $post->post_date_gmt ) { // Draft, 1 or more saves, no date specified.
				$stamp = __( 'Publish <b>immediately</b>' );
			} elseif ( time() < strtotime( $post->post_date_gmt . ' +0000' ) ) { // Draft, 1 or more saves, future date specified.
				/* translators: Post date information. %s: Date on which the post is to be published. */
				$stamp = __( 'Schedule for: %s' );
			} else { // Draft, 1 or more saves, date specified.
				/* translators: Post date information. %s: Date on which the post is to be published. */
				$stamp = __( 'Publish on: %s' );
			}
			$date = sprintf(
				$date_string,
				date_i18n( $date_format, strtotime( $post->post_date ) ),
				date_i18n( $time_format, strtotime( $post->post_date ) )
			);
		} else { // Draft (no saves, and thus no date specified).
			$stamp = __( 'Publish <b>immediately</b>' );
			$date  = sprintf(
				$date_string,
				date_i18n( $date_format, strtotime( current_time( 'mysql' ) ) ),
				date_i18n( $time_format, strtotime( current_time( 'mysql' ) ) )
			);
		}

		if ( ! empty( $args['args']['revisions_count'] ) ) :
			?>
			<div class="misc-pub-section misc-pub-revisions">
				<?php
				/* translators: Post revisions heading. %s: The number of available revisions. */
				printf( __( 'Revisions: %s' ), '<b>' . number_format_i18n( $args['args']['revisions_count'] ) . '</b>' );
				?>
				<a class="hide-if-no-js" href="<?php echo esc_url( get_edit_post_link( $args['args']['revision_id'] ) ); ?>"><span aria-hidden="true"><?php _ex( 'Browse', 'revisions' ); ?></span> <span class="screen-reader-text"><?php _e( 'Browse revisions' ); ?></span></a>
			</div>
			<?php
		endif;

		if ( $can_publish ) : // Contributors don't get to choose the date of publish.
			?>
			<div class="misc-pub-section curtime misc-pub-curtime">
				<span id="timestamp">
					<?php printf( $stamp, '<b>' . $date . '</b>' ); ?>
				</span>
				<a href="#edit_timestamp" class="edit-timestamp hide-if-no-js" role="button">
					<span aria-hidden="true"><?php _e( 'Edit' ); ?></span>
					<span class="screen-reader-text"><?php _e( 'Edit date and time' ); ?></span>
				</a>
				<fieldset id="timestampdiv" class="hide-if-js">
					<legend class="screen-reader-text"><?php _e( 'Date and time' ); ?></legend>
					<?php touch_time( ( 'edit' === $action ), 1 ); ?>
				</fieldset>
			</div>
			<?php
		endif;

		if ( 'draft' === $post->post_status && get_post_meta( $post_id, '_customize_changeset_uuid', true ) ) :
			?>
			<div class="notice notice-info notice-alt inline">
				<p>
					<?php
					printf(
						/* translators: %s: URL to the Customizer. */
						__( 'This draft comes from your <a href="%s">unpublished customization changes</a>. You can edit, but there is no need to publish now. It will be published automatically with those changes.' ),
						esc_url(
							add_query_arg(
								'changeset_uuid',
								rawurlencode( get_post_meta( $post_id, '_customize_changeset_uuid', true ) ),
								admin_url( 'customize.php' )
							)
						)
					);
					?>
				</p>
			</div>
			<?php
		endif;

		/**
		 * Fires after the post time/date setting in the Publish meta box.
		 *
		 * @since 2.9.0
		 * @since 4.4.0 Added the `$post` parameter.
		 *
		 * @param WP_Post $post WP_Post object for the current post.
		 */
		do_action( 'post_submitbox_misc_actions', $post );
		?>
	</div>
	<div class="clear"></div>
</div>

<div id="major-publishing-actions">
	<?php
	/**
	 * Fires at the beginning of the publishing actions section of the Publish meta box.
	 *
	 * @since 2.7.0
	 * @since 4.9.0 Added the `$post` parameter.
	 *
	 * @param WP_Post|null $post WP_Post object for the current post on Edit Post screen,
	 *                           null on Edit Link screen.
	 */
	do_action( 'post_submitbox_start', $post );
	?>
	<div id="delete-action">
		<?php
		if ( current_user_can( 'delete_post', $post_id ) ) {
			if ( ! EMPTY_TRASH_DAYS ) {
				$delete_text = __( 'Delete permanently' );
			} else {
				$delete_text = __( 'Move to Trash' );
			}
			?>
			<a class="submitdelete deletion" href="<?php echo get_delete_post_link( $post_id ); ?>"><?php echo $delete_text; ?></a>
			<?php
		}
		?>
	</div>

	<div id="publishing-action">
		<span class="spinner"></span>
		<?php
		if ( ! in_array( $post->post_status, array( 'publish', 'future', 'private' ), true ) || 0 === $post_id ) {
			if ( $can_publish ) :
				if ( ! empty( $post->post_date_gmt ) && time() < strtotime( $post->post_date_gmt . ' +0000' ) ) :
					?>
					<input name="original_publish" type="hidden" id="original_publish" value="<?php echo esc_attr_x( 'Schedule', 'post action/button label' ); ?>" />
					<?php submit_button( _x( 'Schedule', 'post action/button label' ), 'primary large', 'publish', false ); ?>
					<?php
				else :
					?>
					<input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Publish' ); ?>" />
					<?php submit_button( __( 'Publish' ), 'primary large', 'publish', false ); ?>
					<?php
				endif;
			else :
				?>
				<input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Submit for Review' ); ?>" />
				<?php submit_button( __( 'Submit for Review' ), 'primary large', 'publish', false ); ?>
				<?php
			endif;
		} else {
			?>
			<input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Update' ); ?>" />
			<?php submit_button( __( 'Update' ), 'primary large', 'save', false, array( 'id' => 'publish' ) ); ?>
			<?php
		}
		?>
	</div>
	<div class="clear"></div>
</div>

</div>
	<?php
}