var aPicture=[], aFile, iFile, ajaxXHR;
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function picturePrepare() {
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$("#page_preview").fadeIn();
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aFile=$("#file_picture")[0].files;
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iFile=0;
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picturePreview();
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}
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function picturePreview() {
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var ksize=Math.floor(aFile[iFile].size/1024);
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var src=URL.createObjectURL(aFile[iFile]);
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$("#img_preview").attr("src", src);
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$("#div_upload_percent").css({width:"0"});
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$("#div_upload_status").html("准备上传");
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$("#div_upload_number").html("第"+(iFile+1)+"张");
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$("#div_upload_size").html(ksize+" K");
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pictureUploadRaw();
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}
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function pictureUploadRaw() {
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var data = new FormData();
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data.append('raw_file', aFile[iFile]);
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data.append('action', 'upload_raw');
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var option={};
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option.url=jsonURL+"picture.json.php";
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option.type="POST";
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option.data=data;
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option.processData=false;
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option.contentType=false;
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option.success=pictureUploadRawResponse;
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option.error=onAjaxError;
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ajaxXHR=$.ajaxSettings.xhr();
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ajaxXHR.upload.addEventListener('progress', pictureUploadProgress, false);
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option.xhr=function(){ return ajaxXHR; };
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$.ajax(option);
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}
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function pictureUploadCancel() {
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ajaxXHR.abort();
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$("#page_preview").fadeOut();
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alertMessage("图片上传已取消");
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$("#file_picture").val("");
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}
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function pictureUploadProgress (e) {
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var loaded=parseInt(e.loaded || e.position);
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var total=parseInt(e.total || e.totalSize);
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var percent=Math.floor(loaded/total*100);
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if (percent>=99) {
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$("#div_upload_status").html("即将完成");
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$("#div_upload_percent").css({width:"98%"});
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} else {
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$("#div_upload_status").html(percent+"%");
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$("#div_upload_percent").css({width:percent+"%"});
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}
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}
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function pictureUploadRawResponse(res) {
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if (!res) {
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alertMessage("图片上传出现错误");
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} else if (res.error_code) {
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alertMessage(res.error_message);
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} else {
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aPicture.push(res);
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iFile++;
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if (iFile<aFile.length) {
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picturePreview();
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} else {
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$("#file_picture").val("");
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$("#page_preview").fadeOut();
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pictureReady();
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}
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}
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}
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function pictureChoose() {
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$("#file_picture").click();
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}
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