我需要使用Laravel 5.4将预先存在的图像文件添加到dropzone。这就是我使用createThumbnailFromUrl()
功能的原因。但它不能正确生成图像。相反,它以空白的方式显示它们。为此,我使用了那个链接(jsfiddle)。我google了很多次,尝试了几种方法,但它没有帮助:
以下是我的代码:
<script type="text/javascript" src='{{asset("js/dropzone/min/dropzone.min.js")}}'></script>
<script type="text/javascript">
Dropzone.options.addImages = {
paramName: "file", // The name that will be used to transfer the file
addRemoveLinks: true,
// The setting up of the dropzone
init:function() {
// Add server images
var myDropzone = this;
var existingFiles = [
{ name: "Filename 1.pdf", size: 12345678,imageUrl:'http://img.tfd.com/wn/93/17E8B3-awful.png' },
{ name: "Filename 2.pdf", size: 12345678,imageUrl:'http://img.tfd.com/wn/93/17E8B3-awful.png' },
{ name: "Filename 3.pdf", size: 12345678,imageUrl:'http://img.tfd.com/wn/93/17E8B3-awful.png' },
{ name: "Filename 4.pdf", size: 12345678,imageUrl:'http://img.tfd.com/wn/93/17E8B3-awful.png' },
{ name: "Filename 5.pdf", size: 12345678,imageUrl:'http://img.tfd.com/wn/93/17E8B3-awful.png' }
];
for (i = 0; i < existingFiles.length; i++) {
// alert(existingFiles[i].imageUrl);
myDropzone.emit("addedfile",existingFiles[i]);
myDropzone.files.push(existingFiles[i]);
myDropzone.createThumbnailFromUrl(existingFiles[i], existingFiles[i].imageUrl, function() {
myDropzone.emit("complete", existingFiles[i]);
}, "anonymous");
}
},
};
</script>
P.S:任何形式的帮助将不胜感激。
与dropzone 5.3有同样的问题
这为我修好了
let mockFile = { name: "Loaded File", dataURL: relURL };
dropzoneInst.files.push(mockFile);
dropzoneInst.emit("addedfile", mockFile);
dropzoneInst.createThumbnailFromUrl(mockFile,
dropzoneInst.options.thumbnailWidth,
dropzoneInst.options.thumbnailHeight,
dropzoneInst.options.thumbnailMethod, true, function (thumbnail)
{
dropzoneInst.emit('thumbnail', mockFile, thumbnail);
});
dropzoneInst.emit('complete', mockFile);