图像上传后TinyMCE预填充图像尺寸

Question

嗨，我想在tinymce中预填充图像的宽度和高度。我想出了如何通过“常规” tav进行的基本图像上传。我只是用

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.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, width: 300 });
                };
                reader.readAsDataURL(file);
            };

            input.click();
        },

没关系。但是我添加了第二个选项卡“上传” ，该选项卡使用户可以通过拖放图像来从计算机上浏览图像的位置。我发现如果他从那里上传图像，“ file_picker_callback” 功能将不会被激活。而是调用此函数：

images_upload_handler: function (blobInfo, success, failure) {
            var xhr, formData;
            xhr = new XMLHttpRequest();
            xhr.withCredentials = false;
            xhr.open('POST', '{{ route('admin.stories.store-image') }}');
            var token = '{{ csrf_token() }}';
            xhr.setRequestHeader("X-CSRF-Token", token);
            xhr.onload = function() {
                var json;
                if (xhr.status != 200) {
                    failure('HTTP Error: ' + xhr.status);
                    return;
                }
                json = JSON.parse(xhr.responseText);

                if (!json || typeof json.location != 'string') {
                    failure('Invalid JSON: ' + xhr.responseText);
                    return;
                }
               success(json.location);
            };
            formData = new FormData();
            formData.append('file', blobInfo.blob(), blobInfo.filename());
            xhr.send(formData);
        }

如何像“ file_picker_callback” 函数那样预定义宽度和高度？