javascript 使用 jQuery 获取 Dropzone 实例/对象
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Get Dropzone Instance/Object using jQuery
提问by preston
I use jQuery to work with dropzone. e.g.
我使用 jQuery 来处理 dropzone。例如
$("#mydropzone").dropzone({ /*options*/ });
I need to get the Dropzone instance so I can call this method:
我需要获取 Dropzone 实例，以便我可以调用此方法：
myDropzone.processQueue()
How can I achieve this? Is it possible?
我怎样才能做到这一点？是否可以？
in other words, how can I initialise drop zone using
换句话说，我如何使用
$("#mydropzone").dropzone({ url: "/file/post" });
but at the same time get the instance of the object as if i initialise it using:
但同时获取对象的实例，就像我使用以下方法初始化它一样：
var myDropzone = new Dropzone("#mydropzone", { url: "/file/post"});
so I may call:
所以我可以打电话：
myDropzone.processQueue()
Thank you very much.
非常感谢你。
采纳答案by Jordan
The script seems to add a dropzoneobject to the given element.
So you can do something like this :
该脚本似乎向dropzone给定的element. 所以你可以做这样的事情：
var $dropZone = $("#mydropzone").dropzone({ /*options*/ });
// ...
$dropZone[0].dropzone.processQueue();
回答by cweston
As described in issue #180
You can also use the built in Dropzone.forElementfunction.
您也可以使用内置Dropzone.forElement函数。
var myDropzone = Dropzone.forElement("#mydropzone");
回答by Fabian von Ellerts
Easy way to access the Instance with jQuery, if it has already been initialized:
使用 jQuery 访问实例的简单方法，如果它已经被初始化：
var dropzone = $(this).get(0).dropzone;
回答by Luca Reghellin
As stated before, you can use dropzone's forElement, which in turn just checks for element.dropzone, where 'element' is the native one (not jquery obj). So, to merge, summarize, explain and expand the previous answers, you can do like this:
如前所述，您可以使用 dropzone 的forElement，它反过来只检查element.dropzone，其中“元素”是本机元素（不是 jquery obj）。因此，要合并、总结、解释和扩展以前的答案，您可以这样做：
var element = $("#mydropzone")[0]; // this is the way jquery gives you the original dom
or better, in just plain js:
或者更好，在简单的 js 中：
var element = document.querySelector("#mydropzone");
then get the dropzone like this:
然后像这样得到 dropzone：
element.dropzone
Or, more concise (plain js here):
或者，更简洁（这里是纯 js）：
var dzone = document.querySelector("#mydropzone").dropzone
Just for reference, the current dropzone's forElementsource:
仅供参考，当前 dropzone 的forElement来源：
Dropzone.forElement = function (element) {
if (typeof element === "string") {
element = document.querySelector(element);
}
if ((element != null ? element.dropzone : undefined) == null) {
throw new Error("No Dropzone found for given element. This is probably because you're trying to access it before Dropzone had the time to initialize. Use the `init` option to setup any additional observers on your Dropzone.");
}
return element.dropzone;
};
回答by Vuong Passion
it's seem simple with Dropzone.instances check with id of element:
使用 Dropzone.instances 检查元素 ID 似乎很简单：
function fn_check_has_dropzone_instances(id){
var found = false;
Dropzone.instances.forEach(function(item,index){
if($($(item)[0].element).attr('id').trim()==id.trim()){
console.log(id);
found = true;
}
});
return found;
}