editor.js

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			setCaret(pos);
		}
		if((params == 1 && first) || (params == 2 && first && (haveSel || second)) || (params == 3 && first && second && (haveSel || third))) {
			var text;
			if(params == 1) {
				text = first;
			} else if(params == 2) {
				text = haveSel ? selection : second;
				opentag = '[' + tagname + '=' + first + ']';
			} else {
				text = haveSel ? selection : third;
				opentag = '[' + tagname + '=' + first + ',' + second + ']';
			}
			insertText((opentag + text + closetag), strlen(opentag), strlen(closetag), true, sel);
		}
		hideMenu();
		document.body.removeChild(div);
	};
}

function editorMenu(ctrlid, str) {
	var div = document.createElement('div');
	div.id = ctrlid + '_menu';
	div.style.display = 'none';
	div.className = 'popupmenu_popup';
	document.body.appendChild(div);
	div.innerHTML = '<div class="popupmenu_option" unselectable="on">' + str + '<br /><center><input type="button" id="' + ctrlid + '_submit" value="' + lang['submit'] + '" /> &nbsp; <input type="button" onClick="hideMenu();try{document.body.removeChild(' + div.id + ')}catch(e){}" value="' + lang['cancel'] + '" /></center></div>';
	showMenu(ctrlid, true, 0, 3);
	return div;
}

function discuzcode(cmd, arg) {
	if(cmd != 'redo') {
		addSnapshot(getEditorContents());
	}

	checkFocus();

	if(in_array(cmd, ['quote', 'code', 'free', 'hide'])) {
		var sel;
		if(is_ie) {
			sel = wysiwyg ? editdoc.selection.createRange() : document.selection.createRange();
			var pos = getCaret();
		}
		var selection = sel ? (wysiwyg ? sel.htmlText : sel.text) : getSel();
		var opentag = '[' + cmd + ']';
		var closetag = '[/' + cmd + ']';
		if(cmd != 'hide' && selection) {
			return insertText((opentag + selection + closetag), strlen(opentag), strlen(closetag), true, sel);
		}
		var ctrlid = editorid + '_cmd_' + cmd;
		var str = '';
		if(cmd != 'hide' || !selection) {
			str += lang['post_discuzcode_' + cmd] + ':<br /><textarea id="' + ctrlid + '_param_1" cols="50" rows="5"></textarea>';
		}
		str += cmd == 'hide' && selection ? '' : '<br />';
		str += cmd == 'hide' ? '<input type="radio" name="' + ctrlid + '_radio" id="' + ctrlid + '_radio_1" checked="checked">只有当浏览者回复本帖时才显示<br /><input type="radio" name="' + ctrlid + '_radio" id="' + ctrlid + '_radio_2">只有当浏览者积分高于 <input type="text" size="3" id="' + ctrlid + '_param_2"> 时才显示' : '';
		var div = editorMenu(ctrlid, str);
		$(ctrlid + '_param_' + (cmd == 'hide' && selection ? 2 : 1)).focus();
		$(ctrlid + '_param_' + (cmd == 'hide' && selection ? 2 : 1)).onkeydown = editorMenuEvent_onkeydown;
		$(ctrlid + '_submit').onclick = function() {
			checkFocus();
			if(is_ie) {
				setCaret(pos);
			}
			if(cmd == 'hide' && $(ctrlid + '_radio_2').checked) {
				var mincredits = parseInt($(ctrlid + '_param_2').value);
				opentag = mincredits > 0 ? '[hide=' + mincredits + ']' : '[hide]';
			}
			var text = selection ? selection : $(ctrlid + '_param_1').value;
			if(wysiwyg) {
				if(cmd == 'code') {
					text = preg_replace(['<', '>'], ['&lt;', '&gt;'], text);
				}
				text = text.replace(/\r?\n/g, '<br />');
			}
			text = opentag + text + closetag;
			insertText(text, strlen(opentag), strlen(closetag), false, sel);
			hideMenu();
			document.body.removeChild(div);
		}
		return;
	} else if(cmd.substr(0, 6) == 'custom') {
		var ret = customTags(cmd.substr(8), cmd.substr(6, 1));
	} else if(!wysiwyg && cmd == 'removeformat') {
		var simplestrip = new Array('b', 'i', 'u');
		var complexstrip = new Array('font', 'color', 'size');

		var str = getSel();
		if(str === false) {
			return;
		}
		for(var tag in simplestrip) {
			str = stripSimple(simplestrip[tag], str);
		}
		for(var tag in complexstrip) {
			str = stripComplex(complexstrip[tag], str);
		}
		insertText(str);
	} else if(!wysiwyg && cmd == 'undo') {
		addSnapshot(getEditorContents());
		moveCursor(-1);
		if((str = getSnapshot()) !== false) {
			editdoc.value = str;
		}
	} else if(!wysiwyg && cmd == 'redo') {
		moveCursor(1);
		if((str = getSnapshot()) !== false) {
			editdoc.value = str;
		}
	} else if(!wysiwyg && in_array(cmd, ['insertorderedlist', 'insertunorderedlist'])) {
		var listtype = cmd == 'insertorderedlist' ? '1' : '';
		var opentag = '[list' + (listtype ? ('=' + listtype) : '') + ']\n';
		var closetag = '[/list]';

		if(txt = getSel()) {
			var regex = new RegExp('([\r\n]+|^[\r\n]*)(?!\\[\\*\\]|\\[\\/?list)(?=[^\r\n])', 'gi');
			txt = opentag + trim(txt).replace(regex, '$1[*]') + '\n' + closetag;
			insertText(txt, strlen(txt), 0);
		} else {
			insertText(opentag + closetag, opentag.length, closetag.length);

			while(listvalue = prompt(lang['enter_list_item'], '')) {
				if(is_opera > 8) {
					listvalue = '\n' + '[*]' + listvalue;
					insertText(listvalue, strlen(listvalue) + 1, 0);
				} else {
					listvalue = '[*]' + listvalue + '\n';
					insertText(listvalue, strlen(listvalue), 0);
				}
			}
		}
	} else if(!wysiwyg && cmd == 'outdent') {
		var sel = getSel();
		sel = stripSimple('indent', sel, 1);
		insertText(sel);
	} else if(cmd == 'createlink') {
		insertlink('createlink');
	} else if(!wysiwyg && cmd == 'unlink') {
		var sel = getSel();
		sel = stripSimple('url', sel);
		sel = stripComplex('url', sel);
		insertText(sel);
	} else if(cmd == 'email') {
		insertlink('email');
	} else if(cmd == 'insertimage') {
		insertlink('insertimage');
	} else if(cmd == 'table') {
		if(wysiwyg) {
			var selection = getSel();
			if(is_ie) {
				var pos = getCaret();
			}
			var ctrlid = editorid + '_cmd_table';
			var str = '表格行数: <input type="text" id="' + ctrlid + '_param_rows" size="10" value="2" /> &nbsp; 表格列数: <input type="text" id="' + ctrlid + '_param_columns" size="10" value="2" /><br />表格宽度: <input type="text" id="' + ctrlid + '_param_width" size="10" value="" /> &nbsp; 背景颜色: <input type="text" id="' + ctrlid + '_param_bgcolor" size="10" />';
			var div = editorMenu(ctrlid, str);
			$(ctrlid + '_param_rows').focus();
			var params = ['rows', 'columns', 'width', 'bgcolor'];
			for(var i = 0; i < 4; i++) {$(ctrlid + '_param_' + params[i]).onkeydown = editorMenuEvent_onkeydown;}
			$(ctrlid + '_submit').onclick = function() {
				var rows = $(ctrlid + '_param_rows').value;
				var columns = $(ctrlid + '_param_columns').value;
				var width = $(ctrlid + '_param_width').value;
				var bgcolor = $(ctrlid + '_param_bgcolor').value;
				rows = /^[-\+]?\d+$/.test(rows) && rows > 0 && rows <= 30 ? rows : 2;
				columns = /^[-\+]?\d+$/.test(columns) && columns > 0 && columns <= 30 ? columns : 2;
				width = width.substr(width.length - 1, width.length) == '%' ? (width.substr(0, width.length - 1) <= 98 ? width : '98%') : (width <= 560 ? width : '98%');
				bgcolor = /[\(\)%,#\w]+/.test(bgcolor) ? bgcolor : '';
				var html = '<table cellspacing="0" cellpadding="0" width="' + (width ? width : '50%') + '" class="t_table"' + (bgcolor ? ' bgcolor="' + bgcolor + '"' : '') + '>';
				for (var row = 0; row < rows; row++) {
					html += '<tr>\n';
					for (col = 0; col < columns; col++) {
						html += '<td>&nbsp;</td>\n';
					}
					html+= '</tr>\n';
				}
				html += '</table>\n';
				insertText(html);
				hideMenu();
				document.body.removeChild(div);
			}
		}
		return false;
	} else if(cmd == 'floatleft' || cmd == 'floatright') {
		if(wysiwyg) {
			var selection = getSel();
			if(selection) {
				insertText('<br style="clear: both"><span style="float: ' + cmd.substr(5) + '">' + selection + '</span>', true);
			}
		} else {
			return applyFormat(cmd, false);
		}
	} else {
		try {
			var ret = applyFormat(cmd, false, (isUndefined(arg) ? true : arg));
		} catch(e) {
			var ret = false;
		}
	}

	if(cmd != 'undo') {
		addSnapshot(getEditorContents());
	}
	if(wysiwyg) {
		setContext(cmd);
		if(cmd == 'forecolor') {
			$(editorid + '_color_bar').style.backgroundColor = arg;
		}
	}
	//checkFocus();
	return ret;
}

function setContext(cmd) {
	var contextcontrols = new Array('bold', 'italic', 'underline', 'justifyleft', 'justifycenter', 'justifyright', 'insertorderedlist', 'insertunorderedlist');
	for(var i in contextcontrols) {
		var obj = $(editorid + '_cmd_' + contextcontrols[i]);
		if(obj != null) {
			try {
				var state = editdoc.queryCommandState(contextcontrols[i]);
			} catch(e) {
				var state = false;
			}
			if(isUndefined(obj.state)) {
				obj.state = false;
			}
			if(obj.state != state) {
				obj.state = state;
				buttonContext(obj, (obj.id.substr(obj.id.indexOf('_cmd_') + 5) == cmd ? 'mouseover' : 'mouseout'));
			}
		}
	}

	var fs = editdoc.queryCommandValue('fontname');
	if(fs == '' && !is_ie && window.getComputedStyle) {
		fs = editdoc.body.style.fontFamily;
	} else if(fs == null) {
		fs = '';
	}
	fs = fs ? fs : '字体';
	if(fs != $(editorid + '_font_out').fontstate) {
		thingy = fs.indexOf(',') > 0 ? fs.substr(0, fs.indexOf(',')) : fs;
		$(editorid + '_font_out').innerHTML = thingy;
		$(editorid + '_font_out').fontstate = fs;
	}

	var ss = editdoc.queryCommandValue('fontsize');
	if(ss == null || ss == '') {
		ss = formatFontsize(editdoc.body.style.fontSize);
	}
	if(ss != $(editorid + '_size_out').sizestate) {
		if($(editorid + '_size_out').sizestate == null) {
			$(editorid + '_size_out').sizestate = '';
		}
		$(editorid + '_size_out').innerHTML = ss;
		$(editorid + '_size_out').sizestate = ss;
	}

	var cs = editdoc.queryCommandValue('forecolor');
	$(editorid + '_color_bar').style.backgroundColor = rgbToColor(cs);
}

function buttonContext(obj, state) {
	if(state == 'mouseover') {
		obj.style.cursor = 'pointer';
		var mode = obj.state ? 'down' : 'hover';
		if(obj.mode != mode) {
			obj.mode = mode;
			obj.className = 'hover';
		}
	} else {
		var mode = obj.state ? 'selected' : 'normal';
		if(obj.mode != mode) {
			obj.mode = mode;
			obj.className = mode == 'selected' ? 'hover' : '';
		}
	}
}

function menuContext(obj, state) {
	obj.style.cursor = 'pointer';
	var mode = state == 'mouseover' ? 'hover' : 'normal';
	obj.className = 'editor_button' + mode;
	var tds = obj.getElementsByTagName('td');
	for(var i = 0; i < tds.length; i++) {
		if(tds[i].id.substr(0, tds[i].id.lastIndexOf('_')) == editorid + '_menu') {
			tds[i].className = 'editor_menu' + mode;
		} else if(tds[i].id == editorid + '_colormenu') {
			tds[i].className = 'editor_colormenu' + mode;
		}
	}
}

function colorContext(obj, state) {
	obj.style.cursor = 'pointer';
	var mode = state == 'mouseover' ? 'hover' : 'normal';
	obj.className = 'editor_color' + mode;
}

function getSel() {
	if(wysiwyg) {
		if(is_moz || is_opera) {
			selection = editwin.getSelection();
			checkFocus();
			range = selection ? selection.getRangeAt(0) : editdoc.createRange();
			return readNodes(range.cloneContents(), false);
		} else {
			var range = editdoc.selection.createRange();
			if(range.htmlText && range.text) {
				return range.htmlText;
			} else {
				var htmltext = '';
				for(var i = 0; i < range.length; i++) {
					htmltext += range.item(i).outerHTML;
				}
				return htmltext;
			}
		}
	} else {
		if(!isUndefined(editdoc.selectionStart)) {
			return editdoc.value.substr(editdoc.selectionStart, editdoc.selectionEnd - editdoc.selectionStart);
		} else if(document.selection && document.selection.createRange) {
			return document.selection.createRange().text;
		} else if(window.getSelection) {
			return window.getSelection() + '';
		} else {
			return false;
		}
	}
}

function insertText(text, movestart, moveend, select, sel) {
	if(wysiwyg) {
		if(is_moz || is_opera) {
			applyFormat('removeformat');
			var fragment = editdoc.createDocumentFragment();
			var holder = editdoc.createElement('span');
			holder.innerHTML = text;

			while(holder.firstChild) {
				fragment.appendChild(holder.firstChild);
			}
			insertNodeAtSelection(fragment);
		} else {
			checkFocus();