transcript previewing, thank you iframe

classes/WhatDidTheySayAdmin.inc

@@ -92,8 +92,18 @@ class WhatDidTheySayAdmin {
     $filters = new WDTSDisplayFilters();
     $reset_filter_value = true;
 
-    if (is_string($options['filters_to_use'])) {
-      $target = $this->get_filters_dir() . '/' . preg_replace('#[^a-z0-9_-]#', '', strtolower($options['filters_to_use']));
+    $filter_to_use = false;
+    if (is_string($options['filters_to_use'])) { $filter_to_use = $options['filters_to_use']; }
+    if (current_user_can('submit_transcriptions')) {
+      if (isset($_REQUEST['wdts'])) {
+        if (isset($_REQUEST['wdts']['filter_preview'])) {
+          $filter_to_use = $_REQUEST['wdts']['filter_preview'];
+        }
+      }
+    }
+
+    if ($filter_to_use) {
+      $target = $this->get_filters_dir() . '/' . preg_replace('#[^a-z0-9_-]#', '', strtolower($filter_to_use));
       if (is_dir($target)) {
         $this->override_filter_info = array();
         foreach (glob($target . '/*') as $file) {
@@ -113,6 +123,7 @@ class WhatDidTheySayAdmin {
       }
     }
 
+    // short codes
     foreach (array(
       array('the_media_transcript', 2),
       array('the_language_name', 2),
@@ -132,7 +143,6 @@ class WhatDidTheySayAdmin {
       }
     }
 
-    // short codes
     foreach (get_class_methods($this) as $method) {
       if (strpos($method, "shortcode_") === 0) {
         $shortcode_name = str_replace("_", "-", str_replace("shortcode_", "", $method));
@@ -167,7 +177,23 @@ class WhatDidTheySayAdmin {
         include('partials/_editor-script.inc');
         exit(0);
       }
-      
+
+      if (isset($_REQUEST['wdts']['filter_preview'])) {
+        $styles_to_include = array(
+          plugin_dir_url(dirname(__FILE__)) . 'css/wdts-defaults.css'
+        );
+
+        if (isset($this->override_filter_info['css'])) {
+          if (($path = realpath($this->override_filter_info['css'])) !== false) {
+            $styles_to_include[] = str_replace(realpath($this->_get_abspath()), '', $path);
+          }
+        }
+
+        include('partials/_sample-transcript.inc');
+        include('partials/_show-sample-transcript.inc');
+        exit(0);
+      }
+
       if (isset($_REQUEST['wdts']['_nonce'])) {
         if (wp_verify_nonce($_REQUEST['wdts']['_nonce'], 'what-did-they-say')) {
 					if (($_REQUEST['wdts']['post_id'] <= 0) && ($_POST['post_ID'] > 0)) {
@@ -231,7 +257,9 @@ class WhatDidTheySayAdmin {
     }
 
     if (isset($this->override_filter_info['css'])) {
-      wp_enqueue_style('wdts-override', str_replace(realpath($this->_get_abspath()), '', realpath($this->override_filter_info['css'])));
+      if (($path = realpath($this->override_filter_info['css'])) !== false) {
+        wp_enqueue_style('wdts-override', str_replace(realpath($this->_get_abspath()), '', $path));
+      }
     }
 
     if ($options['transcript_effects']) {

classes/partials/_default-styles.inc

@@ -67,7 +67,7 @@
       <?php if (!empty($available_filters)) { ?>
         <label>
           <?php _e('Use the selected transcript filter set:', 'what-did-they-say') ?>
-          <select name="wdts[filters_to_use]">
+          <select id="wdts-filters-to-use" name="wdts[filters_to_use]">
             <option value="__default__"><?php _e('(default)', 'what-did-they-say') ?></option>
             <?php foreach ($available_filters as $filter_name) { ?>
               <option value="<?php echo $filter_name ?>"<?php echo ($options['filters_to_use'] == $filter_name) ? ' selected="selected"' : '' ?>><?php echo $filter_name ?></option>
@@ -75,6 +75,8 @@
           </select>
         </label>
       <?php } ?>
+
+      <div id="wdts-sample-transcript-holder"></div>
       
       <input class="button" type="submit" value="<?php _e('Change default styles', 'what-did-they-say') ?>" />
     </form>

classes/partials/_sample-transcript.inc

@@ -0,0 +1,8 @@
+<?php
+
+$sample_transcript   = array();
+$sample_transcript[] = __('[scene-heading]Ext. The Old Man\'s House[/scene-heading]', 'what-did-they-say');
+$sample_transcript[] = __('[scene-action]John is walking down to the car parked in the driveway.[/scene-action]', 'what-did-they-say');
+$sample_transcript[] = __('[dialog name="John" direction="(towards the house)"]Hey, where are the keys?[/dialog]', 'what-did-they-say');
+
+?>

classes/partials/_shortcodes-info.inc

@@ -1,9 +1,6 @@
 <?php
 
-$sample_transcript   = array();
-$sample_transcript[] = __('[scene-heading]Ext. The Old Man\'s House[/scene-heading]', 'what-did-they-say');
-$sample_transcript[] = __('[scene-action]John is walking down to the car parked in the driveway.[/scene-action]', 'what-did-they-say');
-$sample_transcript[] = __('[dialog name="John" direction="(towards the house)"]Hey, where are the keys?[/dialog]', 'what-did-they-say');
+include('_sample-transcript.inc');
 
 ?>
 <?php if (current_user_can('submit_transcriptions')) { ?>

classes/partials/_show-sample-transcript.inc

@@ -0,0 +1,12 @@
+<html>
+  <head>
+    <?php foreach ($styles_to_include as $style) { ?>
+      <link rel="stylesheet" href="<?php echo $style ?>" type="text/css" />
+    <?php } ?>
+  </head>
+  <body>
+    <div class="wdts-transcript">
+      <?php echo do_shortcode(implode("\n", $sample_transcript)) ?>
+    </div>
+  </body>
+</html>

classes/partials/admin.inc

@@ -97,6 +97,19 @@
     });
   });
 
+  var iframe_url = '<?php echo plugin_dir_url(realpath(dirname(__FILE__) . '/../..'))  . 'what-did-they-say.php' ?>';
+
+  var load_sample_transcript = function() {
+    var which = $('wdts-filters-to-use').options[$('wdts-filters-to-use').selectedIndex].value;
+    $('wdts-sample-transcript-holder').innerHTML = '';
+    var iframe = new Element('iframe', { width: "100%", height: "200px", src: iframe_url + '?wdts[filter_preview]=' + which });
+    $('wdts-sample-transcript-holder').insert(iframe);
+  };
+
+  $('wdts-filters-to-use').observe('change', load_sample_transcript);
+
+  Event.observe(window, 'load', load_sample_transcript);
+
   <?php if (isset($_POST['wdts']['return_page'])) { ?>
     make_active($('<?php echo str_replace('-page-', '-tab-', $_POST['wdts']['return_page']) ?>'));
   <?php } else { ?>