Question

我有一个dropzone表单来上传文件，包含在带有2个输入文本的标准表单中，提交按钮（id = submit-all）的行为由以下javascript部分管理（为了上传所有单击按钮后的文件）：

Dropzone.options.myDropzone = {
  // Prevents Dropzone from uploading dropped files immediately
  autoProcessQueue: false,
  uploadMultiple: true,
  init: function() {
    var submitButton = document.querySelector("#submit-all")
        myDropzone = this; // closure
    submitButton.addEventListener("click", function() {
      myDropzone.processQueue(); // Tell Dropzone to process all queued files.
    });
    this.on("queuecomplete", function (file) {
      if (this.getUploadingFiles().length === 0 && this.getQueuedFiles().length === 0) {
        location.href = 'write.php?final=y';
     }
    });
  }
};

单击该按钮时，将按预期上传和处理所有文件，然后将访问者重定向到页面＆quot; write.php？final = y＆＃39; （恭喜留言）。但是，当没有选择文件时，此脚本不起作用：单击该按钮完全没有效果。

有人可以帮我解决这个问题吗？非常感谢您的回复!!

Answer 1

未发出queuecomplete，因为没有文件

Dropzone.options.myDropzone = {
  // Prevents Dropzone from uploading dropped files immediately
  autoProcessQueue: false,
  uploadMultiple: true,
  init: function() {
    var submitButton = document.querySelector("#submit-all");
    myDropzone = this; // closure
    submitButton.addEventListener("click", function() {
        if (myDropzone.getUploadingFiles().length === 0 && myDropzone.getQueuedFiles().length === 0) {
            location.href = 'write.php?final=y';
        }
        else {
            myDropzone.processQueue();
        }
    });
  }
};

还有一种手动发射事件的方法，只需简单使用

this.emit("signalname");

和事件列表

Dropzone.prototype.events = ["drop", "dragstart", "dragend", "dragenter", "dragover", "dragleave", "addedfile", "addedfiles", "removedfile", "thumbnail", "error", "errormultiple", "processing", "processingmultiple", "uploadprogress", "totaluploadprogress", "sending", "sendingmultiple", "success", "successmultiple", "canceled", "canceledmultiple", "complete", "completemultiple", "reset", "maxfilesexceeded", "maxfilesreached", "queuecomplete"];

dropzone：当没有选择文件时，提交按钮不起作用

1 个答案: