leguwork_public/scripts/pasteImage.js
2021-04-02 10:30:40 +08:00

58 lines
1.6 KiB
JavaScript

/* eslint-disable */
// ------------------------------------------------------------------------
// Created by STRd6
// MIT License
// https://github.com/distri/jquery-image_reader/blob/master/paste.coffee.md
//
// Raymond re-write it to javascript
(function($) {
$.event.fix = (function(originalFix) {
return function(event) {
event = originalFix.apply(this, arguments);
if (event.type.indexOf('copy') === 0 || event.type.indexOf('paste') === 0) {
event.clipboardData = event.originalEvent.clipboardData;
}
return event;
};
})($.event.fix);
const defaults = {
callback: $.noop,
matchType: /image.*/,
};
return $.fn.pasteImageReader = function(options) {
if (typeof options === 'function') {
options = {
callback: options,
};
}
options = $.extend({}, defaults, options);
return this.each(function() {
const element = this;
return $(element).bind('paste', function(event) {
const types = event.clipboardData.types;
const items = event.clipboardData.items;
for(let i=0; i<types.length; i++) {
if(types[i].match(options.matchType) || items[i].type.match(options.matchType)) {
const f = items[i].getAsFile();
const reader = new FileReader();
reader.onload = function(evt) {
return options.callback.call(element, {
dataURL: evt.target.result,
event: evt,
file: f,
name: f.name,
});
};
reader.readAsDataURL(f);
return;
}
}
});
});
};
})(jQuery);