[英]dropzone prevent the form submitting when buttons are clicked
我在頁面中使用dropzone的方式如下(表單文本上還有其他輸入類型,然后選擇下拉列表):
<form name="somename" method="post" action="/gotoURL" form="role">
// Other form elements here
<div id="droparea">
<div id="actions" class="row">
<div class="col-lg-7">
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="btn btn-success fileinput-button">
<i class="glyphicon glyphicon-plus"></i>
<span>Add files...</span>
</span>
<button type="submit" class="btn btn-primary start">
<i class="glyphicon glyphicon-upload"></i>
<span>Start upload</span>
</button>
<button type="reset" class="btn btn-red cancel">
<i class="glyphicon glyphicon-ban-circle"></i>
<span>Cancel upload</span>
</button>
</div>
<div class="col-lg-5">
<!-- The global file processing state -->
<span class="fileupload-process">
<div id="total-progress" class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0">
<div class="progress-bar progress-bar-success" style="width:0%;" data-dz-uploadprogress></div>
</div>
</span>
</div>
</div>
<div class="table table-striped files" id="previews">
<div id="template" class="file-row">
<!-- This is used as the file preview template -->
<div>
<span class="preview"><img data-dz-thumbnail /></span>
</div>
<div>
<p class="name" data-dz-name></p>
<strong class="error text-danger" data-dz-errormessage></strong>
</div>
<div>
<p class="size" data-dz-size></p>
<div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0">
<div class="progress-bar progress-bar-success" style="width:0%;" data-dz-uploadprogress></div>
</div>
</div>
<div>
<button class="btn btn-primary start">
<i class="glyphicon glyphicon-upload"></i>
<span>Start</span>
</button>
<button data-dz-remove class="btn btn-red cancel">
<i class="glyphicon glyphicon-ban-circle"></i>
<span>Cancel</span>
</button>
<button data-dz-remove class="btn btn-red delete">
<i class="glyphicon glyphicon-trash"></i>
<span>Delete</span>
</button>
</div>
</div>
</div> <!-- end action -->
</div> <!-- end droparea -->
然后,我有一個表單的提交按鈕,如下所示:
<button name="appbut" class="btn btn-primary" type="submit">SEND NOW</button>
這就是問題所在,dropzone效果很好,但是每次單擊dropzone中的按鈕時,都會提交完整的表單,這意味着頁面將重新加載,並且任何文本區域中的所有數據都會丟失輸入框。
我的站點上另一個頁面上的dropzone沒有包裝成表格,調用AJAX函數可以正常工作,所以我猜這與表格有關嗎?
這是我的dropzone ajax代碼:
// Get the template HTML and remove it from the doument
var previewNode = document.querySelector("#template");
previewNode.id = "";
var previewTemplate = previewNode.parentNode.innerHTML;
previewNode.parentNode.removeChild(previewNode);
var myDropzone = new Dropzone("#droparea", { // Make the whole body a dropzone
url: "/upload-cv2.php", // Set the url
maxFiles: 1,
maxFilesize: 1,
acceptedFiles: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document , application/docx, application/pdf, text/plain, application/msword',
init: function() {
this.on("success", function(file, responseText) {
console.log(responseText);
});
},
parallelUploads: 20,
previewTemplate: previewTemplate,
autoQueue: false, // Make sure the files aren't queued until manually added
previewsContainer: "#previews", // Define the container to display the previews
clickable: ".fileinput-button" // Define the element that should be used as click trigger to select files.
});
myDropzone.on("addedfile", function(file) {
// Hookup the start button
file.previewElement.querySelector(".start").onclick = function() { myDropzone.enqueueFile(file); };
});
// Update the total progress bar
myDropzone.on("totaluploadprogress", function(progress) {
document.querySelector("#total-progress .progress-bar").style.width = progress + "%";
});
myDropzone.on("sending", function(file) {
// Show the total progress bar when upload starts
document.querySelector("#total-progress").style.opacity = "1";
// And disable the start button
file.previewElement.querySelector(".start").setAttribute("disabled", "disabled");
});
// Hide the total progress bar when nothing's uploading anymore
myDropzone.on("queuecomplete", function(progress) {
document.querySelector("#total-progress").style.opacity = "0";
});
// Setup the buttons for all transfers
// The "add files" button doesn't need to be setup because the config
// `clickable` has already been specified.
document.querySelector("#actions .start").onclick = function() {
myDropzone.enqueueFiles(myDropzone.getFilesWithStatus(Dropzone.ADDED));
};
document.querySelector("#actions .cancel").onclick = function() {
myDropzone.removeAllFiles(true);
};
我不希望每次使用dropzone時都提交表單。
更改:
document.querySelector("#actions .start").onclick = function() { myDropzone.enqueueFiles(myDropzone.getFilesWithStatus(Dropzone.ADDED));
};
document.querySelector("#actions .cancel").onclick = function() {
myDropzone.removeAllFiles(true);
};
至
document.querySelector("#actions .start").onclick = function(e) {
e.preventDefault();
myDropzone.enqueueFiles(myDropzone.getFilesWithStatus(Dropzone.ADDED));
};
document.querySelector("#actions .cancel").onclick = function(e) {
e.preventDefault();
myDropzone.removeAllFiles(true);
};
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