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Added shortcode support #2

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232 changes: 196 additions & 36 deletions revision-history/revision_history.php
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Original file line number Diff line number Diff line change
@@ -1,9 +1,9 @@
<?php
/*
Plugin Name: Show Revision History
Plugin URI: http://keyes.ie/wordpress/show-revision-history
Plugin Name: Revision History
Plugin URI: http://keyes.ie/wordpress/revision-history
Description: Allow any visitor to your site to view the revisions of posts and/or pages.
Version: 0.1
Version: 0.9.2
Author: John Keyes
Author URI: http://keyes.ie
*/
Expand Down Expand Up @@ -33,33 +33,89 @@
add_action('wp', 'check_for_revision');

function check_for_revision($wp) {
$adjust_title = get_option( 'rh_adjust_title' );

if ( $adjust_title ) {
$title_class = get_option( 'rh_title_class' );
$rev_date = rh_revision_str();

if (valid_revision_id()) {
$revision = $_GET['revision'];
$post = get_post($revision);
if ($post != null) {
# reset posts so the revision is displayed instead of the original
global $posts;
$posts = array($post);
}
}
else {
$post = get_post(get_the_ID());
}

if ($title_class) {
$post->post_title .= "<span class=\"$title_class\">";
}
$post->post_title .= " (Revision: " . $rev_date . ")";
if ($title_class) {
$post->post_title .= "</span>";
}
}
}

function rh_get_the_revision_post() {
if (valid_revision_id()) {
$revision = $_GET['revision'];
$post = get_post($revision);
if ($post != null) {
# reset posts so the revision is displayed instead of the original
global $posts;
$posts = array($post);
} else {
$post = get_post(get_the_ID());
}
return $post;
}

function rh_revision_str($post = null) {
if ($post == null) {
if (valid_revision_id()) {
$post = rh_get_the_revision_post($revision);
}
}
if ($post != null) {
$modified = strtotime($post->post_modified_gmt . ' +0000');
return sprintf('%s at %s', date(get_option('date_format'), $modified), date(get_option('time_format'), $modified));
} else {
return "Latest";
}
}

add_filter('the_content', 'display_post_revisions');
function rh_the_revision($before = '', $after = '') {
echo $before . rh_revision_str() . $after;
}


if (get_option( 'rh_use_shortcode' ) == '0'){
add_filter('the_content', 'display_post_revisions');
};


add_shortcode("revisions", "display_post_revisions");

function display_post_revisions($content) {
$post = get_post(get_the_ID());

// if we are visiting a revision we need to adjust the post
// so we can still get the revision history.
if ( $post && $post->post_type == "revision" ) {
$post = get_post($post->post_parent);
}
$page_name = 'show_page_revisions';
$post_name = 'show_post_revisions';
$page_name = 'rh_show_page_revisions';
$post_name = 'rh_show_post_revisions';
$shortcode_name = 'rh_use_shortcode';
$page_val = get_option( $page_name );
$post_val = get_option( $post_name );

if ( $post && (( $post->post_type == "post" && $post_val) ||
$shortcode_val = get_option( $shortcode_name );



if ($post && (( $post->post_type == "post" && $post_val) ||
($post->post_type == "page" && $page_val)) ) {
$revisions = list_post_revisions($post);
if ( $revisions ) {
Expand All @@ -73,19 +129,38 @@ function display_post_revisions($content) {
}





function list_post_revisions( $post ) {
if ( $revisions = wp_get_post_revisions( $post->ID ) ) {
$items = '';
$autosave_name = 'rh_show_autosaves';
$show_autosaves = get_option( $autosave_name );
$revision_id = (valid_revision_id()) ? $revision_id = $_GET['revision'] : $post->ID;
$current_revision_date = rh_revision_str($post);
$current_revision_author = get_author_name($post->post_author);
$current_revision_url = get_permalink($post);
if ($revision_id == $post->ID) {
$items .= "<li>$current_revision_date by $current_revision_author (<em>displayed above</em>)</li>";
} else {
$items .= "<li><a href=\"$current_revision_url\">$current_revision_date</a> by $current_revision_author</li>";
}
foreach ( $revisions as $revision ) {
$date = wp_post_revision_title( $revision, 0 );
$is_autosave = wp_is_post_autosave($revision);
if ( !$show_autosaves && $is_autosave ) {
continue;
}
$rev_date = rh_revision_str($revision);
$name = get_author_name( $revision->post_author );
$query_string = get_query_string($revision);
$items .= "<li>";
if ($revision_id == $revision->ID) {
$items .= "$date by $name (<em>displayed above</em>)";
$items .= "$rev_date by $name (<em>displayed above</em>)";
} else {
$items .= "<a href=\"$query_string\">$date</a> by $name";
$items .= "<a href=\"$query_string\">$rev_date</a> by $name";
}
if ($is_autosave) {
$items .= " [autosave]";
}
$items .= "</li>";
}
Expand All @@ -107,8 +182,12 @@ function get_query_string($revision) {
return $query_string;
}

add_option('show_page_revisions', '0');
add_option('show_post_revisions', '0');
add_option('rh_show_page_revisions', '0');
add_option('rh_show_post_revisions', '0');
add_option('rh_show_autosaves', '0');
add_option('rh_adjust_title', '0');
add_option('rh_title_class', 'rh-title');
add_option('rh_use_shortcode', '0');

// Hook for adding admin menus
add_action('admin_menu', 'add_revision_history');
Expand All @@ -121,22 +200,33 @@ function add_revision_history() {

function add_revision_history_options_page() {
// variables for the field and option names
$page_name = 'show_page_revisions';
$post_name = 'show_post_revisions';
$page_field_name = 'show_page_revisions';
$post_field_name = 'show_post_revisions';
$page_name = 'rh_show_page_revisions';
$post_name = 'rh_show_post_revisions';
$shortcode_name = 'rh_use_shortcode';
$autosaves_name = 'rh_show_autosaves';
$adjust_title_name = 'rh_adjust_title';
$title_class_name = 'rh_title_class';
$hidden_field_name = 'submit_hidden';

// get the current values
$page_val = get_option( $page_name );
$post_val = get_option( $post_name );
$shortcode_val = get_option( $shortcode_name );
$autosaves_val = get_option( $autosaves_name );
$adjust_title_val = get_option( $adjust_title_name );
$title_class_val = get_option( $title_class_name );

// See if the user has posted us some information
// If they did, this hidden field will be set to 'Y'
if( $_POST[ $hidden_field_name ] == 'Y' ) {
// get the values from the POST
$new_page_val = ($_POST[ $page_field_name ] == "on") ? "1" : "0";
$new_post_val = ($_POST[ $post_field_name ] == "on") ? "1" : "0";
$new_page_val = ($_POST[ $page_name ] == "on") ? "1" : "0";
$new_post_val = ($_POST[ $post_name ] == "on") ? "1" : "0";
$new_shortcode_val = ($_POST[ $shortcode_name ] == "on") ? "1" : "0";
$new_autosaves_val = ($_POST[ $autosaves_name ] == "on") ? "1" : "0";
$new_adjust_title_val = ($_POST[ $adjust_title_name ] == "on") ? "1" : "0";
$new_title_class_val = ($_POST[ $title_class_name ] == "") ? "" : $_POST[ $title_class_name ];

// save the new values
if ( $new_page_val != $page_val ) {
update_option( $page_name, $new_page_val );
Expand All @@ -146,27 +236,97 @@ function add_revision_history_options_page() {
update_option( $post_name, $new_post_val );
$post_val = $new_post_val;
}
if ( $new_shortcode_val != $shortcode_val ) {
update_option( $shortcode_name, $new_shortcode_val );
$shortcode_val = $new_shortcode_val;
}
if ( $new_autosaves_val != $autosaves_val ) {
update_option( $autosaves_name, $new_autosaves_val );
$autosaves_val = $new_autosaves_val;
}
if ( $new_adjust_title_val != $adjust_title_val ) {
update_option( $adjust_title_name, $new_adjust_title_val );
$adjust_title_val = $new_adjust_title_val;
}
if ( $new_title_class_val != $title_class_val ) {
update_option( $title_class_name, $new_title_class_val );
$title_class_val = $new_title_class_val;
}
// Feedback that we've updated the options
?>
<div class="updated"><p><strong><?php _e('Options saved.', 'mt_trans_domain' ); ?></strong></p></div>
<?php
} // END CHECKING POST
?>
<div class="wrap">
<?php echo "<h2>" . __( 'Revision History Options', 'mt_trans_domain' ) . "</h2>"; ?>
<?php echo "<h2>" . __( 'Revision History Settings', 'mt_trans_domain' ) . "</h2>"; ?>

<form name="show_revision_history" method="post" action="">
<input type="hidden" name="<?php echo $hidden_field_name; ?>" value="Y">
<p>
<input id="show_on_pages" type="checkbox" name="<?php echo $page_field_name; ?>"
<?php checked('1', $page_val); ?> />
<label for="show_on_pages"><?php _e("Show revision history on pages.", 'mt_trans_domain' ); ?></label>
</p>
<p>
<input id="show_on_posts" type="checkbox" name="<?php echo $post_field_name; ?>"
<?php checked('1', $post_val); ?> />
<label for="show_on_posts"><?php _e("Show revision history on posts.", 'mt_trans_domain' ); ?></label>
</p>
<table class="form-table">
<tbody>
<tr valign="top">
<th scope="row">
<span>Page revisions</span>
</th>
<td>
<input id="rh_show_on_pages" type="checkbox" name="<?php echo $page_name; ?>"
<?php checked('1', $page_val); ?> />
<label for="rh_show_on_pages"><?php _e("Show revision history on pages.", 'mt_trans_domain' ); ?></label>
</td>
</tr>
<tr valign="top">
<th scope="row">
<span>Post revisions</span>
</th>
<td>
<input id="rh_show_on_posts" type="checkbox" name="<?php echo $post_name; ?>"
<?php checked('1', $post_val); ?> />
<label for="rh_show_on_posts"><?php _e("Show revision history on posts.", 'mt_trans_domain' ); ?></label>
</td>
</tr>
<tr valign="top">
<th scope="row">
<span>Autosave revisions</span>
</th>
<td>
<input id="rh_show_autosaves" type="checkbox" name="<?php echo $autosaves_name; ?>"
<?php checked('1', $autosaves_val); ?> />
<label for="rh_show_autosaves"><?php _e("Show autosaves.", 'mt_trans_domain' ); ?></label>
</td>
</tr>
<tr valign="top">
<th scope="row">
<span>Modify post title</span>
</th>
<td>
<input id="rh_adjust_title" type="checkbox" name="<?php echo $adjust_title_name; ?>"
<?php checked('1', $adjust_title_val); ?> />
<label for="rh_adjust_title"><?php _e("Show revision date in post title of revisions.", 'mt_trans_domain' ); ?></label>
<span class="description">&nbsp;If you need more control use <code>rh_the_revision</code> in your theme.</span>
</td>
</tr>
<tr valign="top">
<th scope="row">
<label for="rh_title_class"><?php _e("Title Class", 'mt_trans_domain' ); ?></label>
</th>
<td>
<input id="rh_title_class" type="text" name="<?php echo $title_class_name; ?>" value="<?php echo $title_class_val; ?>" class="regular-text code"/>
<span class="description">A child span is added to the post header, with the specified class.</span>
</td>
</tr>
<tr valign="top">
<th scope="row">
<span>Use Shortcode</span>
</th>
<td>
<input id="rh_use_shortcode" type="checkbox" name="<?php echo $shortcode_name; ?>"
<?php checked('1', $shortcode_val); ?> />
<label for="rh_use_shortcode"><?php _e("Use Shortcode <code>[revisions]</code> to display revisions instead of auto adding to page or post.", 'mt_trans_domain' ); ?></label>
</td>
</tr>
</tbody>
</table>
<p class="submit">
<input type="submit" name="Submit" value="<?php _e('Update Options', 'mt_trans_domain' ) ?>" />
</p>
Expand Down