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@ -48,4 +48,102 @@ module Configs{
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return object;
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}
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}
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export function downloadFile($scope, $http, url, fn?){
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$http.get(url, { responseType: 'arraybuffer' })
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.success( function(data, status, headers) {
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if(angular.isFunction(fn))
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fn();
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var octetStreamMime = 'application/octet-stream';
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var success = false;
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// Get the headers
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headers = headers();
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// Get the filename from the x-filename header or default to "服务列表"
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var filename = "服务文件";
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var params = headers['content-disposition'].split(";");
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for(var i = 0; i< params.length; i++){
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if(params[i].indexOf("filename") != -1){
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var tmp = params[i].split("=");
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if(tmp.length == 2)
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filename = tmp[1].replace(new RegExp("\"", "gm"),"");
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}
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}
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// Determine the content type from the header or default to "application/octet-stream"
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var contentType = headers['content-type'] || octetStreamMime;
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try{
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// Try using msSaveBlob if supported
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console.log("Trying saveBlob method ...");
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var blob = new Blob([data], { type: contentType });
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if(navigator.msSaveBlob)
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navigator.msSaveBlob(blob, filename);
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else {
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// Try using other saveBlob implementations, if available
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var saveBlob = navigator["webkitSaveBlob"] || navigator["mozSaveBlob"] || navigator["saveBlob"];
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if(saveBlob === undefined) throw "Not supported";
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saveBlob(blob, filename);
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}
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console.log("saveBlob succeeded");
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success = true;
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} catch(ex){
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console.log("saveBlob method failed with the following exception:");
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console.log(ex);
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}
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if(!success){
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// Get the blob url creator
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var urlCreator = window.URL || window["webkitURL"] || window["mozURL"] || window["msURL"];
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if(urlCreator){
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// Try to use a download link
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var link = document.createElement('a');
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if('download' in link){
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// Try to simulate a click
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try{
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// Prepare a blob URL
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console.log("Trying download link method with simulated click ...");
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var blob = new Blob([data], { type: contentType });
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var url = urlCreator.createObjectURL(blob);
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link.setAttribute('href', url);
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// Set the download attribute (Supported in Chrome 14+ / Firefox 20+)
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link.setAttribute("download", filename);
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// Simulate clicking the download link
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var event = document.createEvent('MouseEvents');
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event.initMouseEvent('click', true, true, window, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
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link.dispatchEvent(event);
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console.log("Download link method with simulated click succeeded");
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success = true;
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}catch(ex) {
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console.log("Download link method with simulated click failed with the following exception:");
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console.log(ex);
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}
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}
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if(!success){
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// Fallback to window.location method
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try{
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// Prepare a blob URL
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// Use application/octet-stream when using window.location to force download
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console.log("Trying download link method with window.location ...");
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var blob = new Blob([data], { type: octetStreamMime });
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var url = urlCreator.createObjectURL(blob);
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window.location = url;
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console.log("Download link method with window.location succeeded");
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success = true;
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}catch(ex){
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console.log("Download link method with window.location failed with the following exception:");
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console.log(ex);
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}
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}
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}
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}
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if(!success){
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// Fallback to window.open method
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console.log("No methods worked for saving the arraybuffer, using last resort window.open");
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window.open('_blank', '');
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Configs.customAlert("提示", "文件下载失败", '',null, 0, "error");
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}
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}).error(function(data, status) {
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console.log("Request failed with status: " + status);
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// Optionally write the error out to scope
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$scope.errorDetails = "Request failed with status: " + status;
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});
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}
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}
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