modified .gitignore and added downloader.js service

worldskills · Dec 16, 2015 · 69e340f · 69e340f
1 parent 661659b
commit 69e340f
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diff --git a/.gitignore b/.gitignore
@@ -1,2 +1,3 @@
 /.project
 /.settings/
+.DS_Store
diff --git a/src/downloader.js b/src/downloader.js
@@ -0,0 +1,116 @@
+'use strict';
+
+/**
+ * @ngdoc service
+ * @name connectApp.Downloader
+ * @description
+ * # Downloader
+ * Service in the connectApp.
+ */
+angular.module('connectApp')
+  .service('Downloader', function () {  	//$http, API_CONNECT removed
+  		 this.handleDownload = function(data, status, headers, defaultFilename) {
+  			var octetStreamMime = 'application/octet-stream';
+
+			var rqHeaders = headers();
+			var contentType = rqHeaders['content-type'] || octetStreamMime;
+			var filename = rqHeaders['x-filename'] || defaultFilename;
+
+			var saved = false;
+			try
+	        {
+	            // Try using msSaveBlob if supported
+	            //console.log("Trying saveBlob method ...");
+	            var blob = new Blob([data], { type: contentType });
+	            if(navigator.msSaveBlob)
+	                navigator.msSaveBlob(blob, filename);
+	            else {
+	                // Try using other saveBlob implementations, if available
+	                var saveBlob = navigator.webkitSaveBlob || navigator.mozSaveBlob || navigator.saveBlob;
+	                if(saveBlob === undefined) throw "Not supported";
+	                saveBlob(blob, filename);
+	            }
+	            console.log("saveBlob succeeded");
+	            saved = true;
+	        } catch(ex)
+	        {
+	            //console.log("saveBlob method failed with the following exception:");
+	            //console.log(ex);
+	        }
+
+	        if(!saved)
+	        {
+	            // Get the blob url creator
+	            var urlCreator = window.URL || window.webkitURL || window.mozURL || window.msURL;
+	            if(urlCreator)
+	            {
+	                // Try to use a download link
+	                var link = document.createElement('a');
+	                if('download' in link)
+	                {
+	                    // Try to simulate a click
+	                    try
+	                    {
+	                        // Prepare a blob URL
+	                        //console.log("Trying download link method with simulated click ... content type " + contentType);
+	                        var blob = new Blob([data], { type: contentType });
+	                        var url = urlCreator.createObjectURL(blob);
+	                        link.setAttribute('href', url);
+
+	                        // Set the download attribute (Supported in Chrome 14+ / Firefox 20+)
+	                        link.setAttribute("download", filename);
+
+	                        // Simulate clicking the download link
+	                        var event = document.createEvent('MouseEvents');
+	                        event.initMouseEvent('click', true, true, window, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
+	                        link.dispatchEvent(event);
+	                        //console.log("Download link method with simulated click succeeded");
+	                        saved = true;
+
+	                    } catch(ex) {
+	                        //console.log("Download link method with simulated click failed with the following exception:");
+	                        console.log(ex);
+	                    }
+	                }
+
+	                if(!saved)
+	                {
+	                    // Fallback to window.location method
+	                    try
+	                    {
+	                        // Prepare a blob URL
+	                        // Use application/octet-stream when using window.location to force download
+	                        //console.log("Trying download link method with window.location ...");
+	                        var blob = new Blob([data], { type: contentType });
+	                        var url = urlCreator.createObjectURL(blob);
+	                        // use data: url instead of blob
+	                        var reader = new FileReader;
+	                        reader.onload = function() {
+	                          var blobAsDataUrl = reader.result;
+	                          window.location = blobAsDataUrl;
+	                        };
+	                        reader.readAsDataURL(blob);
+	                        console.log("Download link method with window.location succeeded");
+	                        saved = true;
+	                    } catch(ex) {
+	                        //console.log("Download link method with window.location failed with the following exception:");
+	                        console.log(ex);
+	                    }
+	                }
+
+	                if (!saved)
+	                {
+	                	alert('File could not be downloaded with this web browser');
+	                }
+
+	            }
+	        }
+
+	        if(!saved)
+	        {
+	            // Fallback to window.open method
+	            console.log("No methods worked for saving the arraybuffer, using last resort window.open");
+	            window.open(httpPath, '_blank', '');
+	        }
+  		}
+  });