jquery - 如何更改在 Tinymce 中添加图像的默认 html

Question

当我在 tinymce 中添加图像时，这是我得到的默认 html 源代码:

<p><img class="img-responsive img-post" src="/Images/uploads/img.png" alt="" /></p>

我该如何更改？类似于:

<p><img class="img-responsive img-post" data-original="/Images/uploads/img.png" src="/Images/loading.gif" alt="" /></p>

我有原始数据作为 src 而 src 是加载图标，它需要像这样因为我对图像进行了延迟加载。

我知道您可以使用以下方式扩展有效元素:

extend_valid_elements: "data-original"

但我如何更改默认 html 源代码的结构？有没有选择ok图片插入回调之类的东西？？

更新:

这是我的tinymce启动代码:

/******************************tinyMce*******************************/
function tinyMce() {
    tinymce.init({
        theme: "modern",
        selector: "#mceEditor",
        height: 500,
        extend_valid_elements: "data-original",
        relative_urls: true,
        convert_urls: false,
        image_advtab: true,
        image_title: false,
        image_description: false,
        image_dimensions: false,
        image_class_list: [
            { title: "Responsive", value: "lazy img-responsive img-post" }
        ],
        image_list: function (success) {
            $.ajax({
                url: "/Image/List",
                type: "GET",
                dataType: "json",
                success: function (data) {
                    success(data);
                }
            });
        },
        // enable automatic uploads of images represented by blob or data URIs
        automatic_uploads: true,
        // URL of our upload handler (for more details check: https://www.tinymce.com/docs/configure/file-image-upload/#images_upload_url)
        images_upload_url: "/Image/Upload",
        // here we add custom filepicker only to Image dialog
        file_picker_types: "image",
        // and here's our custom image picker
        file_picker_callback: function (cb, value, meta) {
            var input = document.createElement("input");
            input.setAttribute("type", "file");
            input.setAttribute("accept", "image/*");

            // Note: In modern browsers input[type="file"] is functional without 
            // even adding it to the DOM, but that might not be the case in some older
            // or quirky browsers like IE, so you might want to add it to the DOM
            // just in case, and visually hide it. And do not forget do remove it
            // once you do not need it anymore.

            input.onchange = function () {
                var file = this.files[0];

                var reader = new FileReader();
                reader.readAsDataURL(file);
                reader.onload = function () {
                    // Note: Now we need to register the blob in TinyMCEs image blob
                    // registry. In the next release this part hopefully won't be
                    // necessary, as we are looking to handle it internally.
                    var id = "blobid" + (new Date()).getTime();
                    var blobCache = tinymce.activeEditor.editorUpload.blobCache;
                    var base64 = reader.result.split(',')[1];
                    var blobInfo = blobCache.create(id, file, base64);
                    blobCache.add(blobInfo);

                    // call the callback and populate the Title field with the file name
                    cb(blobInfo.blobUri(), { title: file.name });
                };
            };

            input.click();
        }
    });
}

我现在正在考虑另一种方式，如果我可以将tinymce中的默认src属性替换为data-original，那将是完美的，但是在tinymce中，如果我使用data-original，它不会显示图片，它只是显示空白。有没有办法在添加图像时告诉 tinymce，将 data-original 代替 src 并从 data-original 代替 src 读取？

因此:

<p><img class="img-responsive img-post" src="/Images/uploads/img.png" alt="" /></p>

在没有 src 的情况下:

<p><img class="img-responsive img-post" data-original="/Images/uploads/img.png" alt="" /></p>

Answer 1

这是一种检测图像何时插入编辑器的方法。

JS

var newSrc = "/Images/loading.gif";


tinymce.init({
  selector: 'textarea',
  plugins: "image",
  toolbar: "image",
  height: 350,
    setup: function(editor){
    editor.on('NodeChange', function (e) {
      if(e.element.tagName === "IMG"){          
        e.element.setAttribute("data-original", e.element.currentSrc);
        e.element.setAttribute("src", newSrc);
      }
    });
  }
});

您可以通过监听 NodeChange 事件来访问该元素。然后检查 tagName 是 IMG 类型。 然后我们就正常设置我们的属性。

检查这个Demo