dropzone add download button addedfile

Dropzone add download button addedfile#

Dropzone is a JavaScript library that provides drag and drop file uploads with image previews.

If you want to add a download button to the added file in Dropzone, you can use the addedfile event of Dropzone to add the button dynamically with the help of the createThumbnailFromUrl() method. Here's how:

// Create a new Dropzone instance
var dropzone = new Dropzone("div#myDropzone", {
    // Other options
});

// Listen for the addedfile event
dropzone.on("addedfile", function(file) {
    // Create a thumbnail from the file's URL
    dropzone.createThumbnailFromUrl(
        file,
        "/path/to/file.png",
        function() {
            // Add the download button to the thumbnail
            var downloadButton = document.createElement("a");
            downloadButton.href = "/path/to/file.png";
            downloadButton.download = file.name;
            downloadButton.innerHTML = "Download";
            this._thumbnailElement.appendChild(downloadButton);
        }
    );
});

In the above code, we first create a new instance of Dropzone with the new Dropzone() constructor. Then, we listen for the addedfile event using the on() method. Inside this event listener, we use the createThumbnailFromUrl() method to create a thumbnail from the file's URL. Once the thumbnail is created, we add a download button to it and append it to the thumbnail element using standard DOM manipulation methods.

This approach should work for most use cases. However, if you want more control over the appearance and behavior of the download button, you can also create a custom thumbnail template using the thumbnail() method of Dropzone, and add the download button to this template. Here's an example:

// Define a custom thumbnail template
dropzone.options.thumbnail = function(file, dataUrl) {
    var thumbnail = document.createElement("div");
    thumbnail.className = "dz-thumbnail";
    var image = document.createElement("img");
    image.src = dataUrl;
    thumbnail.appendChild(image);
    var downloadButton = document.createElement("a");
    downloadButton.href = "/path/to/file.png";
    downloadButton.download = file.name;
    downloadButton.innerHTML = "Download";
    thumbnail.appendChild(downloadButton);
    return thumbnail;
};

In the above code, we define a custom thumbnail() method for the Dropzone instance. This method takes two arguments: the file and its data URL. It creates a thumbnail element, adds an image element to it, and finally adds a download button to the thumbnail. We then set this method as the thumbnail option of the Dropzone instance.

Both of these approaches should allow you to add a download button to the added file in Dropzone.