/**

 * editor_plugin_src.js

 *

 * Copyright 2009, Moxiecode Systems AB

 * Released under LGPL License.

 *

 * License: http://tinymce.moxiecode.com/license

 * Contributing: http://tinymce.moxiecode.com/contributing

 */

(function() {

	tinymce.create('tinymce.plugins.Directionality', {

		init : function(ed, url) {

			var t = this;

			t.editor = ed;

			function setDir(dir) {

				var dom = ed.dom, curDir, blocks = ed.selection.getSelectedBlocks();

				if (blocks.length) {

					curDir = dom.getAttrib(blocks[0], "dir");

					tinymce.each(blocks, function(block) {

						// Add dir to block if the parent block doesn't already have that dir

						if (!dom.getParent(block.parentNode, "*[dir='" + dir + "']", dom.getRoot())) {

							if (curDir != dir) {

								dom.setAttrib(block, "dir", dir);

							} else {

								dom.setAttrib(block, "dir", null);

							}

						}

					});

					ed.nodeChanged();

				}

			}

			ed.addCommand('mceDirectionLTR', function() {

				setDir("ltr");

			});

			ed.addCommand('mceDirectionRTL', function() {

				setDir("rtl");

			});

			ed.addButton('ltr', {title : 'directionality.ltr_desc', cmd : 'mceDirectionLTR'});

			ed.addButton('rtl', {title : 'directionality.rtl_desc', cmd : 'mceDirectionRTL'});

			ed.onNodeChange.add(t._nodeChange, t);

		},

		getInfo : function() {

			return {

				longname : 'Directionality',

				author : 'Moxiecode Systems AB',

				authorurl : 'http://tinymce.moxiecode.com',

				infourl : 'http://wiki.moxiecode.com/index.php/TinyMCE:Plugins/directionality',

				version : tinymce.majorVersion + "." + tinymce.minorVersion

			};

		},

		// Private methods

		_nodeChange : function(ed, cm, n) {

			var dom = ed.dom, dir;

			n = dom.getParent(n, dom.isBlock);

			if (!n) {

				cm.setDisabled('ltr', 1);

				cm.setDisabled('rtl', 1);

				return;

			}

			dir = dom.getAttrib(n, 'dir');

			cm.setActive('ltr', dir == "ltr");

			cm.setDisabled('ltr', 0);

			cm.setActive('rtl', dir == "rtl");

			cm.setDisabled('rtl', 0);

		}

	});

	// Register plugin

	tinymce.PluginManager.add('directionality', tinymce.plugins.Directionality);

})();