clip-paste.js
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/**
* 粘贴剪切板
* @author qi.li@yoho.cn
* @date: 2017/03/09
*/
/* global gDomains injected from client.hbs*/
var $ = require('yoho-jquery');
var Handlebars = require('yoho-handlebars');
var config = require('../../../config/common');
// dialog html
var $view = '<div class="mask-dialog preview-dialog">' +
'<div class="dialog-mask"></div>' +
'<div class="dialog-main">' +
'<div class="head-part">' +
'<span class="head-title">是否发送图片</span> ' +
'<span class="head-close">x</span>' +
'</div>' +
'<div class="body-part">' +
'<img class="clip-img" src="{{src}}">' +
'</div>' +
'<div class="foot-part">' +
'<a class="foot-btn confirm-btn" href="javascript:;">发送</a>' +
'<a class="foot-btn cancel-btn" href="javascript:;">取消</a>' +
'</div>' +
'</div>' +
'</div>';
var $viewHbs = Handlebars.compile($view);
/**
* 粘贴事件
* @param sl 事件元素选择器
* @param cb 上传成功的回调
*/
function Paste(sl, cb) {
if(typeof sl !== 'string') { return };
this.$el = document.querySelector(sl);
this.formData = null;
this.uploadCb = cb;
this.isSending = false;
this.bindEvents();
}
Paste.prototype = {
bindEvents: function() {
var self = this;
this.$el.addEventListener("paste", function (e) {
var cbd = e.clipboardData;
var ua = window.navigator.userAgent;
// 如果是 Safari 直接 return
if ( !(e.clipboardData && e.clipboardData.items) ) {
return;
}
// Mac平台下Chrome49版本以下 复制Finder中的文件的Bug Hack掉
if(cbd.items && cbd.items.length === 2 && cbd.items[0].kind === "string" && cbd.items[1].kind === "file" &&
cbd.types && cbd.types.length === 2 && cbd.types[0] === "text/plain" && cbd.types[1] === "Files" &&
ua.match(/Macintosh/i) && Number(ua.match(/Chrome\/(\d{2})/i)[1]) < 49){
return;
}
for(var i = 0; i < cbd.items.length; i++) {
var item = cbd.items[i];
if(item.kind == "file"){
var file = item.getAsFile();
if (file.size === 0) { return; }
self.formData = new FormData();
self.formData.append('files[]', file, 'clip.jpg');
var _upload = function() {
if(self.isSending) return;
self.isSending = true;
$.ajax({
type: 'POST',
url: gDomains.imCs + '/fileManage/uploadFile',
data: self.formData,
processData: false, // 告诉jQuery不要去处理发送的数据
contentType: false
})
.done(function(res) {
if (res.code === 200) {
var path = res.data.filePath;
self.uploadCb(path);
self.close();
}
})
.fail(function() {
alert('图片发送失败、点击发送重试！');
})
.always(function() {
self.isSending = false;
});
};
var _bindPrevEvents = function() {
var $prev = self.$preview;
$prev.on('click', '.head-close, .cancel-btn', self.close.bind(self))
.on('click', '.confirm-btn', _upload);
}
var _drawPreview = function(url) {
var $prev = $('.preview-dialog');
var $img = $prev.find('.clip-img');
var len = $img.length;
if(len) {
$img.attr('src', url);
self.$preview = $prev;
return;
}
var html = $viewHbs({src: url});
$('body').append(html);
$('.preview-dialog').css('z-index', 1090);
self.$preview = $('.preview-dialog');
// 绑定预览内事件
_bindPrevEvents();
};
var reader = new FileReader();
reader.onload = function(e) {
var base64 = e.target.result;
var image = new Image();
image.src = base64;
image.onload = function() {
_drawPreview(base64);
self.open();
}
}
reader.readAsDataURL(file);
}
}
}, false);
},
open: function() {
this.$preview.show();
},
close: function() {
console.log(this);
this.$preview.hide();
}
}
Paste.prototype.constructor = Paste;
module.exports = Paste;