TinyMCE: then toggling the paste in plain text mode disable the warning message after the second time.

Fixes #28612.
Built from https://develop.svn.wordpress.org/trunk@36807


git-svn-id: http://core.svn.wordpress.org/trunk@36774 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/tinymce/plugins/wordpress/plugin.js

@@ -566,8 +566,23 @@ tinymce.PluginManager.add( 'wordpress', function( editor ) {
 				wp.autosave.server.triggerSave();
 			}
 		} );
+
+		if ( window.getUserSetting( 'editor_plain_text_paste_warning' ) > 1 ) {
+			editor.settings.paste_plaintext_inform = false;
+		}
 	} );
 
+	editor.on( 'PastePlainTextToggle', function( event ) {
+		// Warn twice, then stop.
+		if ( event.state === true ) {
+			var times = parseInt( window.getUserSetting( 'editor_plain_text_paste_warning' ), 10 ) || 0;
+
+			if ( times < 2 ) {
+				window.setUserSetting( 'editor_plain_text_paste_warning', ++times );
+			}
+		}
+	});
+
 	/**
 	 * Experimental: create a floating toolbar.
 	 * This functionality will change in the next releases. Not recommended for use by plugins.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta1-36806';
+$wp_version = '4.5-beta1-36807';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.