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Javascript代码片段：
/* ——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 = $(this)[0].cloneNode(true);
editor.focus();
setTimeout(function(){
var range, node;
if(document.selection && document.selection.createRange){
document.selection.createRange().pasteHTML(img);
}else if(window.getSelection && window.getSelection().getRangeAt){
range = window.getSelection().getRangeAt(0);
range.insertNode(img);
range.collapse(false);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
}
}, 16);
}else if($(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);
function surrounds() {
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);
(function clearBr() {
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
function scrollToBottom(){
$('.ws__chatMsg-panel').animate({scrollTop: $("#J__chatMsgList").height()}, 300);
}以上是“HTML5如何实现微信聊天界面、微信朋友圈”这篇文章的所有内容，感谢各位的阅读！希望分享的内容对大家有帮助，更多相关知识，欢迎关注创新互联行业资讯频道！
文章题目：HTML5如何实现微信聊天界面、微信朋友圈
转载源于：http://bjjierui.cn/article/jjopso.html
