/**



 * 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() {



	var JSONRequest = tinymce.util.JSONRequest, each = tinymce.each, DOM = tinymce.DOM;







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



		getInfo : function() {



			return {



				longname : 'Spellchecker',



				author : 'Moxiecode Systems AB',



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



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



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



			};



		},







		init : function(ed, url) {



			var t = this, cm;







			t.url = url;



			t.editor = ed;



			t.rpcUrl = ed.getParam("spellchecker_rpc_url", "{backend}");







			if (t.rpcUrl == '{backend}') {



				// Sniff if the browser supports native spellchecking (Don't know of a better way)



				if (tinymce.isIE)



					return;







				t.hasSupport = true;







				// Disable the context menu when spellchecking is active



				ed.onContextMenu.addToTop(function(ed, e) {



					if (t.active)



						return false;



				});



			}







			// Register commands



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



				if (t.rpcUrl == '{backend}') {



					// Enable/disable native spellchecker



					t.editor.getBody().spellcheck = t.active = !t.active;



					return;



				}







				if (!t.active) {



					ed.setProgressState(1);



					t._sendRPC('checkWords', [t.selectedLang, t._getWords()], function(r) {



						if (r.length > 0) {



							t.active = 1;



							t._markWords(r);



							ed.setProgressState(0);



							ed.nodeChanged();



						} else {



							ed.setProgressState(0);







							if (ed.getParam('spellchecker_report_no_misspellings', true))



								ed.windowManager.alert('spellchecker.no_mpell');



						}



					});



				} else



					t._done();



			});







			if (ed.settings.content_css !== false)



				ed.contentCSS.push(url + '/css/content.css');







			ed.onClick.add(t._showMenu, t);



			ed.onContextMenu.add(t._showMenu, t);



			ed.onBeforeGetContent.add(function() {



				if (t.active)



					t._removeWords();



			});







			ed.onNodeChange.add(function(ed, cm) {



				cm.setActive('spellchecker', t.active);



			});







			ed.onSetContent.add(function() {



				t._done();



			});







			ed.onBeforeGetContent.add(function() {



				t._done();



			});







			ed.onBeforeExecCommand.add(function(ed, cmd) {



				if (cmd == 'mceFullScreen')



					t._done();



			});







			// Find selected language



			t.languages = {};



			each(ed.getParam('spellchecker_languages', '+English=en,Danish=da,Dutch=nl,Finnish=fi,French=fr,German=de,Italian=it,Polish=pl,Portuguese=pt,Spanish=es,Swedish=sv', 'hash'), function(v, k) {



				if (k.indexOf('+') === 0) {



					k = k.substring(1);



					t.selectedLang = v;



				}







				t.languages[k] = v;



			});



		},







		createControl : function(n, cm) {



			var t = this, c, ed = t.editor;







			if (n == 'spellchecker') {



				// Use basic button if we use the native spellchecker



				if (t.rpcUrl == '{backend}') {



					// Create simple toggle button if we have native support



					if (t.hasSupport)



						c = cm.createButton(n, {title : 'spellchecker.desc', cmd : 'mceSpellCheck', scope : t});







					return c;



				}







				c = cm.createSplitButton(n, {title : 'spellchecker.desc', cmd : 'mceSpellCheck', scope : t});







				c.onRenderMenu.add(function(c, m) {



					m.add({title : 'spellchecker.langs', 'class' : 'mceMenuItemTitle'}).setDisabled(1);



					each(t.languages, function(v, k) {



						var o = {icon : 1}, mi;







						o.onclick = function() {



							if (v == t.selectedLang) {



								return;



							}



							mi.setSelected(1);



							t.selectedItem.setSelected(0);



							t.selectedItem = mi;



							t.selectedLang = v;



						};







						o.title = k;



						mi = m.add(o);



						mi.setSelected(v == t.selectedLang);







						if (v == t.selectedLang)



							t.selectedItem = mi;



					})



				});







				return c;



			}



		},







		// Internal functions







		_walk : function(n, f) {



			var d = this.editor.getDoc(), w;







			if (d.createTreeWalker) {



				w = d.createTreeWalker(n, NodeFilter.SHOW_TEXT, null, false);







				while ((n = w.nextNode()) != null)



					f.call(this, n);



			} else



				tinymce.walk(n, f, 'childNodes');



		},







		_getSeparators : function() {



			var re = '', i, str = this.editor.getParam('spellchecker_word_separator_chars', '\\s!"#$%&()*+,-./:;<=>?@[\]^_{|}§©«®±¶·¸»¼½¾¿×÷¤\u201d\u201c');







			// Build word separator regexp



			for (i=0; i<str.length; i++)



				re += '\\' + str.charAt(i);







			return re;



		},







		_getWords : function() {



			var ed = this.editor, wl = [], tx = '', lo = {}, rawWords = [];







			// Get area text



			this._walk(ed.getBody(), function(n) {



				if (n.nodeType == 3)



					tx += n.nodeValue + ' ';



			});







			// split the text up into individual words



			if (ed.getParam('spellchecker_word_pattern')) {



				// look for words that match the pattern



				rawWords = tx.match('(' + ed.getParam('spellchecker_word_pattern') + ')', 'gi');



			} else {



				// Split words by separator



				tx = tx.replace(new RegExp('([0-9]|[' + this._getSeparators() + '])', 'g'), ' ');



				tx = tinymce.trim(tx.replace(/(\s+)/g, ' '));



				rawWords = tx.split(' ');



			}







			// Build word array and remove duplicates



			each(rawWords, function(v) {



				if (!lo[v]) {



					wl.push(v);



					lo[v] = 1;



				}



			});







			return wl;



		},







		_removeWords : function(w) {



			var ed = this.editor, dom = ed.dom, se = ed.selection, r = se.getRng(true);







			each(dom.select('span').reverse(), function(n) {



				if (n && (dom.hasClass(n, 'mceItemHiddenSpellWord') || dom.hasClass(n, 'mceItemHidden'))) {



					if (!w || dom.decode(n.innerHTML) == w)



						dom.remove(n, 1);



				}



			});







			se.setRng(r);



		},







		_markWords : function(wl) {



			var ed = this.editor, dom = ed.dom, doc = ed.getDoc(), se = ed.selection, r = se.getRng(true), nl = [],



				w = wl.join('|'), re = this._getSeparators(), rx = new RegExp('(^|[' + re + '])(' + w + ')(?=[' + re + ']|$)', 'g');







			// Collect all text nodes



			this._walk(ed.getBody(), function(n) {



				if (n.nodeType == 3) {



					nl.push(n);



				}



			});







			// Wrap incorrect words in spans



			each(nl, function(n) {



				var node, elem, txt, pos, v = n.nodeValue;







				if (rx.test(v)) {



					// Encode the content



					v = dom.encode(v);



					// Create container element



					elem = dom.create('span', {'class' : 'mceItemHidden'});







					// Following code fixes IE issues by creating text nodes



					// using DOM methods instead of innerHTML.



					// Bug #3124: <PRE> elements content is broken after spellchecking.



					// Bug #1408: Preceding whitespace characters are removed



					// @TODO: I'm not sure that both are still issues on IE9.



					if (tinymce.isIE) {



						// Enclose mispelled words with temporal tag



						v = v.replace(rx, '$1<mcespell>$2</mcespell>');



						// Loop over the content finding mispelled words



						while ((pos = v.indexOf('<mcespell>')) != -1) {



							// Add text node for the content before the word



							txt = v.substring(0, pos);



							if (txt.length) {



								node = doc.createTextNode(dom.decode(txt));



								elem.appendChild(node);



							}



							v = v.substring(pos+10);



							pos = v.indexOf('</mcespell>');



							txt = v.substring(0, pos);



							v = v.substring(pos+11);



							// Add span element for the word



							elem.appendChild(dom.create('span', {'class' : 'mceItemHiddenSpellWord'}, txt));



						}



						// Add text node for the rest of the content



						if (v.length) {



							node = doc.createTextNode(dom.decode(v));



							elem.appendChild(node);



						}



					} else {



						// Other browsers preserve whitespace characters on innerHTML usage



						elem.innerHTML = v.replace(rx, '$1<span class="mceItemHiddenSpellWord">$2</span>');



					}







					// Finally, replace the node with the container



					dom.replace(elem, n);



				}



			});







			se.setRng(r);



		},







		_showMenu : function(ed, e) {



			var t = this, ed = t.editor, m = t._menu, p1, dom = ed.dom, vp = dom.getViewPort(ed.getWin()), wordSpan = e.target;







			e = 0; // Fixes IE memory leak







			if (!m) {



				m = ed.controlManager.createDropMenu('spellcheckermenu', {'class' : 'mceNoIcons'});



				t._menu = m;



			}







			if (dom.hasClass(wordSpan, 'mceItemHiddenSpellWord')) {



				m.removeAll();



				m.add({title : 'spellchecker.wait', 'class' : 'mceMenuItemTitle'}).setDisabled(1);







				t._sendRPC('getSuggestions', [t.selectedLang, dom.decode(wordSpan.innerHTML)], function(r) {



					var ignoreRpc;







					m.removeAll();







					if (r.length > 0) {



						m.add({title : 'spellchecker.sug', 'class' : 'mceMenuItemTitle'}).setDisabled(1);



						each(r, function(v) {



							m.add({title : v, onclick : function() {



								dom.replace(ed.getDoc().createTextNode(v), wordSpan);



								t._checkDone();



							}});



						});







						m.addSeparator();



					} else



						m.add({title : 'spellchecker.no_sug', 'class' : 'mceMenuItemTitle'}).setDisabled(1);







					if (ed.getParam('show_ignore_words', true)) {



						ignoreRpc = t.editor.getParam("spellchecker_enable_ignore_rpc", '');



						m.add({



							title : 'spellchecker.ignore_word',



							onclick : function() {



								var word = wordSpan.innerHTML;







								dom.remove(wordSpan, 1);



								t._checkDone();







								// tell the server if we need to



								if (ignoreRpc) {



									ed.setProgressState(1);



									t._sendRPC('ignoreWord', [t.selectedLang, word], function(r) {



										ed.setProgressState(0);



									});



								}



							}



						});







						m.add({



							title : 'spellchecker.ignore_words',



							onclick : function() {



								var word = wordSpan.innerHTML;







								t._removeWords(dom.decode(word));



								t._checkDone();







								// tell the server if we need to



								if (ignoreRpc) {



									ed.setProgressState(1);



									t._sendRPC('ignoreWords', [t.selectedLang, word], function(r) {



										ed.setProgressState(0);



									});



								}



							}



						});



					}







					if (t.editor.getParam("spellchecker_enable_learn_rpc")) {



						m.add({



							title : 'spellchecker.learn_word',



							onclick : function() {



								var word = wordSpan.innerHTML;







								dom.remove(wordSpan, 1);



								t._checkDone();







								ed.setProgressState(1);



								t._sendRPC('learnWord', [t.selectedLang, word], function(r) {



									ed.setProgressState(0);



								});



							}



						});



					}







					m.update();



				});







				p1 = DOM.getPos(ed.getContentAreaContainer());



				m.settings.offset_x = p1.x;



				m.settings.offset_y = p1.y;







				ed.selection.select(wordSpan);



				p1 = dom.getPos(wordSpan);



				m.showMenu(p1.x, p1.y + wordSpan.offsetHeight - vp.y);







				return tinymce.dom.Event.cancel(e);



			} else



				m.hideMenu();



		},







		_checkDone : function() {



			var t = this, ed = t.editor, dom = ed.dom, o;







			each(dom.select('span'), function(n) {



				if (n && dom.hasClass(n, 'mceItemHiddenSpellWord')) {



					o = true;



					return false;



				}



			});







			if (!o)



				t._done();



		},







		_done : function() {



			var t = this, la = t.active;







			if (t.active) {



				t.active = 0;



				t._removeWords();







				if (t._menu)



					t._menu.hideMenu();







				if (la)



					t.editor.nodeChanged();



			}



		},







		_sendRPC : function(m, p, cb) {



			var t = this;







			JSONRequest.sendRPC({



				url : t.rpcUrl,



				method : m,



				params : p,



				success : cb,



				error : function(e, x) {



					t.editor.setProgressState(0);



					t.editor.windowManager.alert(e.errstr || ('Error response: ' + x.responseText));



				}



			});



		}



	});







	// Register plugin



	tinymce.PluginManager.add('spellchecker', tinymce.plugins.SpellcheckerPlugin);



})();



