.Net Core +signlar + redis webim代碼實作（三）

序

接上篇文章，上篇文章，我們大概實作了signlar的互相通知、發送消息的功能，但是一個webim怎麼可以沒有表情、怎麼可以不能發送檔案呢，這期我們主要說下發送表情、以及檔案。

核心代碼

// 選擇表情
    function selectEmoji() {
        if (!isSelectEmoji) {
            var emojiHtml = "";
            for (var i = 1; i <= 130; i++) {
                emojiHtml += "<span><img onclick='chatemojiSelect(this)' src='/ChatHubTemplateHtml/Images/chatemoji/" + i + ".gif' /></span>";
            }
            $("#chatemojiPanel").html(emojiHtml);
            $("#chatemojiPanel").show();
            isSelectEmoji = true;
        } else {
            $("#chatemojiPanel").hide();
            isSelectEmoji = false;
        }
    }
    function chatemojiSelect(obj) {
        var emojiSrc = $(obj).attr("src");
        var originHref = window.location.origin;
        var imageHref = originHref + emojiSrc;
        $("#chatemojiPanel").hide();
        $("#NeedSendMsg").html($("#NeedSendMsg").html() + "<img src='"+imageHref+"' style='max-width:265px' />");
    }


    function UploadImage() {
        $("#supercode_UploadImage").click();
    }
    // 發送圖檔
    function UploadImageChange(obj) {
        var imageFile = obj.files[0];
        var imageName = imageFile.name;
        var imageSize = imageFile.size;
        var imageType = imageFile.type;
        var msgHtml = "";
        var imagereads = new FileReader();
        imagereads.readAsDataURL(imageFile);
        var imageSrc = "";
        $("#uploadfileInfoTip").show();
        var title = document.getElementById("uploadfileInfoTip_title");
        title.innerHTML = imageName;
        imagereads.onload = function(evt) {
            imageSrc = evt.target.result;
            if (imageSrc != "") {
                //建立formdata對象
                var formdata = new FormData();
                formdata.append("fileFolder", "chatRecordImage");
                formdata.append("file", obj.files[0]);
                chatService.UploadFileRequest("/api/Upload/UploadFile", formdata, function (res) {
                    var data = JSON.parse(res.target.responseText);
                    if (data.Issuccess) {
                        var imageHref = data.Data[0].Url
                        $("#NeedSendMsg").html($("#NeedSendMsg").html() + "<img src='"+imageHref+"' style='max-width:265px' />");
                    }else{
                        alert("上傳失敗！");
                    }
                    $("#uploadfileInfoTip").hide();
                    $("#supercode_UploadImage").val("");
                }, function (err) {
                        console.log("err")
                        console.log(err)
                }, function (evt) {
                    console.log(evt)
                    var progressBar = document.getElementById("uploadfileInfoTip_bar");
                    // event.total是需要傳輸的總位元組，event.loaded是已經傳輸的位元組。如果event.lengthComputable不為真，則event.total等于0
                    if (evt.lengthComputable) {
                        progressBar.innerHTML = Math.round(evt.loaded / evt.total * 100) + "%";
                    }
                });

            }
        };
    }
           

效果圖

代碼連結

github位址:https://github.com/GitHub-chao/SuperCode.Signlar

線上預覽：http://signlar.51softwarebox.com/home/chat3