/*——聊天编辑器区域*/

var $editor = $(".J__editorText"), editor = $editor[0];var $face = $(".emotion-area dd img");

$face.on("click", function(e){if($(this).hasClass("face")){ //图像

var img = $(this)[0].cloneNode(true);

editor.focus();

setTimeout(function(){varrange, node;if(document.selection &&document.selection.createRange){

document.selection.createRange().pasteHTML(img);

}else if(window.getSelection &&window.getSelection().getRangeAt){

range= window.getSelection().getRangeAt(0);

range.insertNode(img);

range.collapse(false);var sel =window.getSelection();

sel.removeAllRanges();

sel.addRange(range);

}

},16);

}else if($(this).hasClass("del")){ //删除

editor.focus();

range= window.getSelection().getRangeAt(0);

range.collapse(false);var sel =window.getSelection();

sel.removeAllRanges();

sel.addRange(range);

document.execCommand("delete");

}

});//...格式化编辑器包含标签

editor.addEventListener("focus", function(evt) {

surrounds()

},true);

editor.addEventListener("input", function(evt) {

surrounds();

},false);functionsurrounds() {

setTimeout(function () { //chrome

var sel =window.getSelection();var anchorNode =sel.anchorNode;if (!anchorNode) return;if (sel.anchorNode === editor ||(sel.anchorNode.nodeType=== 3 && sel.anchorNode.parentNode ===editor)) {var range = sel.getRangeAt(0);var p = document.createElement("p");

range.surroundContents(p);

range.selectNodeContents(p);

range.insertNode(document.createElement("br")); //chrome

sel.collapse(p, 0);

(functionclearBr() {var elems =[].slice.call(editor.children);for (var i = 0, len = elems.length; i < len; i++) {var el =elems[i];if (el.tagName.toLowerCase() == "br") {

editor.removeChild(el);

}

}

elems.length= 0;

})();

}

},0);

}//...滚动到聊天内容底部

functionscrollToBottom(){

$('.ws__chatMsg-panel').animate({scrollTop: $("#J__chatMsgList").height()}, 300);

}