Lrz Compress pictures, upload seven cows

Reference Documentation:

1.http://blog.csdn.net/zhongbaolin/article/details/49817611

2.https://github.com/think2011/localresizeimg

3.http://yunzhu.iteye.com/blog/2177923

4.http://blog.csdn.net/inuyasha1121/article/details/51915742

5.https://segmentfault.com/q/1010000005012250?_ea=753141

Demo Download Address: http://download.csdn.net/detail/u010947098/9725884

Compress the picture via Lrz and upload it to the seven cow server.

Lrz compression pictures online case quite a lot of, I am also the main card in the upload Seven cow server, has been using the seven-Qiniu JS SDK to upload pictures, but seven cattle provided by the JSSDK is based on the plupload of the expansion, with the compression function, only support JPG compression, does not support PNG And then decided to use the LRZ, but using seven cattle jssdk has been unable to upload to the seven cow server, finally through Android upload seven cattle server, grab packets to view the transmitted packets, and then use AJAX asynchronous request, send Formdata data, successfully uploaded Through the LRZ also completed the image compression function, the heart Meimei.

The following posted the code I wrote, the code is in the LRZ project based on the change for everyone's reference:

Here, thank the author of the reference documentation.

Window.onerror = function (ErrMsg, Scripturi, linenumber, ColumnNumber, errorobj) {settimeout (function () {V Ar rst = {"error message:": ErrMsg, "Error file:": Scripturi, "error line number:": linenumber, "error column number

        : ": ColumnNumber, Error Details:": errorobj};
        Alert (' Error, next display error message ');
    Alert (json.stringify (RST, NULL, 10));
});

}; [].foreach.call (Document.queryselectorall (' [data-src] '), function (EL) {(function (EL) {El.addeventlistener (

            ' Click ', Function () {el.src = ' img/loading.gif ';


                    Lrz (EL.DATASET.SRC). Then (function (rst) {el.src = rst.base64;
                return rst;
        });

        });
    FireEvent (el, ' click ');
}) (EL);

});


    Document.queryselector (' input '). AddEventListener (' Change ', function () {var "= this; Lrz (That.files[0], {width:800}). Then (function (RST) {var FormdATA = new FormData (); Formdata.append ("token", "qhdmc1g_uymrggxsjnrjnlxc9i-rsgqbjokszjfz:mzfli37nimtajikxwfuxksa4jpa=:
            eyjzy29wzsi6inlsenl5esisimrlywrsaw5lijoxndgzmtaxmzuzfq== ");
            Formdata.append ("file", Rst.file);
                $.ajax ({type: POST), url: "http://upload.qiniu.com/", Data:formdata,  Async:false, Cache:false, Contenttype:false, ProcessData:
                False, Beforesend:function (XMLHttpRequest) {//showloader (); }, Success:function (data) {if ("1" = Data.error) {alert (
                        Data.message);
                    return false;

                        else {alert (data.thumbnail);
                    return false; }, Complete:function (XMLHttpRequest, TextstatUS) {Hideloader ();
                    }, Error:function (XMLHttpRequest, Textstatus, Errorthrown) {//upload failed//hideloader ();
                Alert (' Operation error ');
            }
            });
        return rst;
});

});
Document.queryselector (' #version '). InnerHTML = Lrz.version; Document.queryselector ('.

UA '). InnerHTML = ' ua: ' + navigator.useragent;

function ToFixed2 (num) {return parsefloat (+num.tofixed (2));} /** * Replacement String! {} * @param obj * @returns {String} * @example * ' I am!
 {str} '. Render ({str: ' Test '});

    */String.prototype.render = function (obj) {var str = this, reg;
        Object.keys (obj). ForEach (function (v) {reg = new RegExp (' \\!\\{' + V + ' \} ', ' G ');
    str = str.replace (Reg, obj[v]);

    });
return str;

}; /** * Trigger Event-Just for Compatibility demo demo * @param element * @param event * @returns {Boolean}/function FireEvent (element, event

    ) {var evt; if (document.createeventobjECT) {//IE browser supports fireevent method evt = Document.createeventobject (); Return element.fireevent (' on ' + Event, evt)} else {//other standard browsers use dispatchevent method evt = document.cr
        Eateevent (' htmlevents ');
        Initevent accepts 3 parameters://Event type, bubbling, blocking browser default behavior Evt.initevent (event, True, true);
    Return!element.dispatchevent (EVT); 　　　　　　　}/** * *┏┓┏┓*┏┛┻━━━┛┻┓*┃┃*┃━┃*┃┳┛┗┳┃*┃┃*┃┻┃*┃ 　　　　┃*┗━┓┏━┛code are far away from bugs with the animal protecting *┃┃ God bless, code no bugs *┃┃*
 ┃┗━━━┓*┃┣┓*┃┏┛*┗┓┓┏━┳┓┏┛*┃┫┫┃┫┫*┗┻┛┗┻┛* *