/**
 * $Id: editor_plugin_src.js 919 2008-09-08 20:31:23Z spocke $
 *
 * @author Moxiecode
 * @copyright Copyright © 2004-2008, Moxiecode Systems AB, All rights reserved.
 */

(function() {
	var Event = tinymce.dom.Event;

	tinymce.create('tinymce.plugins.PastePlugin', {
		init : function(ed, url) {
			var t = this;

			t.editor = ed; 

			// Register commands
			ed.addCommand('mcePasteText', function(ui, v) {
				if (ui) {
					if ((ed.getParam('paste_use_dialog', true)) || (!tinymce.isIE)) {
						ed.windowManager.open({
							file : url + '/pastetext.htm',
							width : 450,
							height : 400,
							inline : 1
						}, {
							plugin_url : url
						});
					} else
						t._insertText(clipboardData.getData("Text"), true);
				} else
					t._insertText(v.html, v.linebreaks);
			});

			ed.addCommand('mcePasteWord', function(ui, v) {
				if (ui) {
					if ((ed.getParam('paste_use_dialog', true)) || (!tinymce.isIE)) {
						ed.windowManager.open({
							file : url + '/pasteword.htm',
							width : 450,
							height : 400,
							inline : 1
						}, {
							plugin_url : url
						});
					} else
						t._insertText(t._clipboardHTML());
				} else
					t._insertWordContent(v);
			});

			ed.addCommand('mceSelectAll', function() {
				ed.execCommand('selectall'); 
			});

			// Register buttons
			ed.addButton('pastetext', {title : 'paste.paste_text_desc', cmd : 'mcePasteText', ui : true});
			ed.addButton('pasteword', {title : 'paste.paste_word_desc', cmd : 'mcePasteWord', ui : true});
			ed.addButton('selectall', {title : 'paste.selectall_desc', cmd : 'mceSelectAll'});

			if (ed.getParam("paste_auto_cleanup_on_paste", false)) {
				ed.onPaste.add(function(ed, e) {
					return t._handlePasteEvent(e)
				});
			}

			if (!tinymce.isIE && ed.getParam("paste_auto_cleanup_on_paste", false)) {
				// Force paste dialog if non IE browser
				ed.onKeyDown.add(function(ed, e) {
					if (e.ctrlKey && e.keyCode == 86) {
						window.setTimeout(function() {
							ed.execCommand("mcePasteText", true);
						}, 1);

						Event.cancel(e);
					}
				});
			}
		},

		getInfo : function() {
			return {
				longname : 'Paste text/word',
				author : 'Moxiecode Systems AB',
				authorurl : 'http://tinymce.moxiecode.com',
				infourl : 'http://wiki.moxiecode.com/index.php/TinyMCE:Plugins/paste',
				version : tinymce.majorVersion + "." + tinymce.minorVersion
			};
		},

		// Private methods

		_handlePasteEvent : function(e) {
			var html = this._clipboardHTML(), ed = this.editor, sel = ed.selection, r;

			// Removes italic, strong etc, the if was needed due to bug #1437114
			if (ed && (r = sel.getRng()) && r.text.length > 0)
				ed.execCommand('delete');

			if (html && html.length > 0)
				ed.execCommand('mcePasteWord', false, html);

			return Event.cancel(e);
		},

		_insertText : function(content, bLinebreaks) {
			content = this.editor.dom.encode(content);

			if (content && content.length > 0) {
				// Delete any highlighted text before pasting
				if (!this.editor.selection.isCollapsed())
					this.editor.execCommand("Delete"); 

				if (bLinebreaks) { 
					// Special paragraph treatment 
					if (this.editor.getParam("paste_create_paragraphs", true)) {
						var rl = this.editor.getParam("paste_replace_list", '\u2122,<sup>TM</sup>,\u2026,...,\u201c|\u201d,",\u2019,\',\u2013|\u2014|\u2015|\u2212,-').split(',');
						for (var i=0; i<rl.length; i+=2)
							content = content.replace(new RegExp(rl[i], 'gi'), rl[i+1]);

						content = content.replace(/\r\n\r\n/g, '</p><p>');
						content = content.replace(/\r\r/g, '</p><p>');
						content = content.replace(/\n\n/g, '</p><p>');

						// Has paragraphs 
						if ((pos = content.indexOf('</p><p>')) != -1) { 
							this.editor.execCommand("Delete"); 

							var node = this.editor.selection.getNode(); 

							// Get list of elements to break 
							var breakElms = [];

							do { 
								if (node.nodeType == 1) { 
									// Don't break tables and break at body 
									if (node.nodeName == "TD" || node.nodeName == "BODY") 
										break; 
			
									breakElms[breakElms.length] = node; 
								} 
							} while(node = node.parentNode); 

							var before = "", after = "</p>"; 
							before += content.substring(0, pos); 

							for (var i=0; i<breakElms.length; i++) { 
								before += "</" + breakElms[i].nodeName + ">"; 
								after += "<" + breakElms[(breakElms.length-1)-i].nodeName + ">"; 
							} 

							before += "<p>"; 
							content = before + content.substring(pos+7) + after; 
						} 
					} 

					if (this.editor.getParam("paste_create_linebreaks", true)) {
						content = content.replace(/\r\n/g, '<br />');
						content = content.replace(/\r/g, '<br />');
						content = content.replace(/\n/g, '<br />');
					}
				} 

				this.editor.execCommand("mceInsertRawHTML", false, content); 
			}
		},

		_insertWordContent : function(content) { 
			var t = this, ed = t.editor;

			if (content && content.length > 0) {
				// Cleanup Word content
				var bull = String.fromCharCode(8226);
				var middot = String.fromCharCode(183);

				if (ed.getParam('paste_insert_word_content_callback'))
					content = ed.execCallback('paste_insert_word_content_callback', 'before', content);

				var rl = ed.getParam("paste_replace_list", '\u2122,<sup>TM</sup>,\u2026,...,\x93|\x94|\u201c|\u201d,",\x60|\x91|\x92|\u2018|\u2019,\',\u2013|\u2014|\u2015|\u2212,-').split(',');
				for (var i=0; i<rl.length; i+=2)
					content = content.replace(new RegExp(rl[i], 'gi'), rl[i+1]);

				if (this.editor.getParam("paste_convert_headers_to_strong", false)) {
					content = content.replace(new RegExp('<p class=MsoHeading.*?>(.*?)<\/p>', 'gi'), '<p><b>$1</b></p>');
				}

				content = content.replace(new RegExp('tab-stops: list [0-9]+.0pt">', 'gi'), '">' + "--list--");
				content = content.replace(new RegExp(bull + "(.*?)<BR>", "gi"), "<p>" + middot + "$1</p>");
				content = content.replace(new RegExp('<SPAN style="mso-list: Ignore">', 'gi'), "<span>" + bull); // Covert to bull list
				content = content.replace(/<o:p><\/o:p>/gi, "");
				content = content.replace(new RegExp('<br style="page-break-before: always;.*>', 'gi'), '-- page break --'); // Replace pagebreaks
				content = content.replace(/<!--([\s\S]*?)-->|<style>[\s\S]*?<\/style>/g, "");  // Word comments
				content = content.replace(/<(meta|link)[^>]+>/g, ""); // Header elements

				if (this.editor.getParam("paste_remove_spans", true))
					content = content.replace(/<\/?span[^>]*>/gi, "");

				if (this.editor.getParam("paste_remove_styles", true))
					content = content.replace(new RegExp('<(\\w[^>]*) style="([^"]*)"([^>]*)', 'gi'), "<$1$3");

				content = content.replace(/<\/?font[^>]*>/gi, "");

				// Strips class attributes.
				switch (this.editor.getParam("paste_strip_class_attributes", "all")) {
					case "all":
						content = content.replace(/<(\w[^>]*) class=([^ |>]*)([^>]*)/gi, "<$1$3");
						break;

					case "mso":
						content = content.replace(new RegExp('<(\\w[^>]*) class="?mso([^ |>]*)([^>]*)', 'gi'), "<$1$3");
						break;
				}

				content = content.replace(new RegExp('href="?' + this._reEscape("" + document.location) + '', 'gi'), 'href="' + this.editor.documentBaseURI.getURI());
				content = content.replace(/<(\w[^>]*) lang=([^ |>]*)([^>]*)/gi, "<$1$3");
				content = content.replace(/<\\?\?xml[^>]*>/gi, "");
				content = content.replace(/<\/?\w+:[^>]*>/gi, "");
				content = content.replace(/-- page break --\s*<p>&nbsp;<\/p>/gi, ""); // Remove pagebreaks
				content = content.replace(/-- page break --/gi, ""); // Remove pagebreaks

		//		content = content.replace(/\/?&nbsp;*/gi, ""); &nbsp;
		//		content = content.replace(/<p>&nbsp;<\/p>/gi, '');

				if (!this.editor.getParam('force_p_newlines')) {
					content = content.replace('', '' ,'gi');
					content = content.replace('</p>', '<br /><br />' ,'gi');
				}

				if (!tinymce.isIE && !this.editor.getParam('force_p_newlines')) {
					content = content.replace(/<\/?p[^>]*>/gi, "");
				}

				content = content.replace(/<\/?div[^>]*>/gi, "");

				// Convert all middlot lists to UL lists
				if (this.editor.getParam("paste_convert_middot_lists", true)) {
					var div = ed.dom.create("div", null, content);

					// Convert all middot paragraphs to li elements
					var className = this.editor.getParam("paste_unindented_list_class", "unIndentedList");

					while (this._convertMiddots(div, "--list--")) ; // bull
					while (this._convertMiddots(div, middot, className)) ; // Middot
					while (this._convertMiddots(div, bull)) ; // bull

					content = div.innerHTML;
				}

				// Replace all headers with strong and fix some other issues
				if (this.editor.getParam("paste_convert_headers_to_strong", false)) {
					content = content.replace(/<h[1-6]>&nbsp;<\/h[1-6]>/gi, '<p>&nbsp;&nbsp;</p>');
					content = content.replace(/<h[1-6]>/gi, '<p><b>');
					content = content.replace(/<\/h[1-6]>/gi, '</b></p>');
					content = content.replace(/<b>&nbsp;<\/b>/gi, '<b>&nbsp;&nbsp;</b>');
					content = content.replace(/^(&nbsp;)*/gi, '');
				}

				content = content.replace(/--list--/gi, ""); // Remove --list--

				if (ed.getParam('paste_insert_word_content_callback'))
					content = ed.execCallback('paste_insert_word_content_callback', 'after', content);

				// Insert cleaned content
				this.editor.execCommand("mceInsertContent", false, content);

				if (this.editor.getParam('paste_force_cleanup_wordpaste', true)) {
					var ed = this.editor;

					window.setTimeout(function() {
						ed.execCommand("mceCleanup");
					}, 1); // Do normal cleanup detached from this thread
				}
			}
		},

		_reEscape : function(s) {
			var l = "?.\\*[](){}+^$:";
			var o = "";

			for (var i=0; i<s.length; i++) {
				var c = s.charAt(i);

				if (l.indexOf(c) != -1)
					o += '\\' + c;
				else
					o += c;
			}

			return o;
		},

		_convertMiddots : function(div, search, class_name) {
			var ed = this.editor, mdot = String.fromCharCode(183), bull = String.fromCharCode(8226);
			var nodes, prevul, i, p, ul, li, np, cp, li;

			nodes = div.getElementsByTagName("p");
			for (i=0; i<nodes.length; i++) {
				p = nodes[i];

				// Is middot
				if (p.innerHTML.indexOf(search) == 0) {
					ul = ed.dom.create("ul");

					if (class_name)
						ul.className = class_name;

					// Add the first one
					li = ed.dom.create("li");
					li.innerHTML = p.innerHTML.replace(new RegExp('' + mdot + '|' + bull + '|--list--|&nbsp;', "gi"), '');
					ul.appendChild(li);

					// Add the rest
					np = p.nextSibling;
					while (np) {
						// If the node is whitespace, then
						// ignore it and continue on.
						if (np.nodeType == 3 && new RegExp('^\\s$', 'm').test(np.nodeValue)) {
								np = np.nextSibling;
								continue;
						}

						if (search == mdot) {
								if (np.nodeType == 1 && new RegExp('^o(\\s+|&nbsp;)').test(np.innerHTML)) {
										// Second level of nesting
										if (!prevul) {
												prevul = ul;
												ul = ed.dom.create("ul");
												prevul.appendChild(ul);
										}
										np.innerHTML = np.innerHTML.replace(/^o/, '');
								} else {
										// Pop the stack if we're going back up to the first level
										if (prevul) {
												ul = prevul;
												prevul = null;
										}
										// Not element or middot paragraph
										if (np.nodeType != 1 || np.innerHTML.indexOf(search) != 0)
												break;
								}
						} else {
								// Not element or middot paragraph
								if (np.nodeType != 1 || np.innerHTML.indexOf(search) != 0)
										break;
							}

						cp = np.nextSibling;
						li = ed.dom.create("li");
						li.innerHTML = np.innerHTML.replace(new RegExp('' + mdot + '|' + bull + '|--list--|&nbsp;', "gi"), '');
						np.parentNode.removeChild(np);
						ul.appendChild(li);
						np = cp;
					}

					p.parentNode.replaceChild(ul, p);

					return true;
				}
			}

			return false;
		},

		_clipboardHTML : function() {
			var div = document.getElementById('_TinyMCE_clipboardHTML');

			if (!div) {
				var div = document.createElement('DIV');
				div.id = '_TinyMCE_clipboardHTML';

				with (div.style) {
					visibility = 'hidden';
					overflow = 'hidden';
					position = 'absolute';
					width = 1;
					height = 1;
				}

				document.body.appendChild(div);
			}

			div.innerHTML = '';
			var rng = document.body.createTextRange();
			rng.moveToElementText(div);
			rng.execCommand('Paste');
			var html = div.innerHTML;
			div.innerHTML = '';
			return html;
		}
	});

	// Register plugin
	tinymce.PluginManager.add('paste', tinymce.plugins.PastePlugin);
})();