support file:// upload using cordova file-transfer

lib/upload.js

@@ -11,8 +11,9 @@
 
 Slingshot.Upload = function (directive, metaData) {
 
-  if (!window.File || !window.FormData) {
-    throw new Error("Browser does not support HTML5 uploads");
+  if (!window.File || !window.FormData )  {
+    if(!cordova || !cordova.file || !FileTransfer)
+      throw new Error("Browser does not support HTML5 uploads and cordova file transfer is not available");
   }
 
   var self = this,
@@ -34,6 +35,54 @@ Slingshot.Upload = function (directive, metaData) {
     return formData;
   }
 
+  function cordova_transfer(callback){
+    status.set("transferring");
+    loaded.set(0);
+
+    var ft = new FileTransfer();
+
+    ft.onprogress = function(progressEvent){
+      if(progressEvent.lengthComputable){
+        loaded.set(progressEvent.loaded);
+        total.set(progressEvent.total);
+      }
+    };
+
+    var options = new FileUploadOptions();
+    options.headers = {};
+    _.each(self.instructions.headers, function (value, key) {
+      options.headers[key] = value;
+    });
+    options.headers['Content-Length'] = self.file.size;
+
+
+    options.params = {};
+    _.each(self.instructions.postData, function (value) {
+      options.params[value.name] = value.value;
+    });
+
+    var fileUrl = self.file.nativeURL;
+    options.fileKey = "file";
+    options.fileName = self.file.name;
+    options.mimeType = self.file.type;
+    //options.chunkMode = false;
+    options.httpMethod = 'post';
+
+
+    ft.upload(fileUrl,encodeURI(self.instructions.upload),function(result){
+      status.set("done");
+      loaded.set(total.get());
+      callback(null, self.instructions.download);
+
+    },function(err){
+      status.set("failed");
+      callback(new Meteor.Error(err.http_status,"Failed to upload file to cloud storage",err.exception));
+    },options);
+
+    self.xhr = ft;
+
+    return self;
+  }
   _.extend(self, {
 
     /**
@@ -86,20 +135,34 @@ Slingshot.Upload = function (directive, metaData) {
      */
 
     send: function (file, callback) {
-      if (! (file instanceof window.File) && ! (file instanceof window.Blob))
+      if (! (file instanceof window.File) && ! (file instanceof window.Blob) && !( typeof file==='string' && /^file:\/\/.*$/i.test(file)) )
         throw new Error("Not a file");
 
-      self.file = file;
+      function _send(){
+        self.request(function (error, instructions) {
+          if (error) {
+            return callback(error);
+          }
 
-      self.request(function (error, instructions) {
-        if (error) {
-          return callback(error);
-        }
+          self.instructions = instructions;
 
-        self.instructions = instructions;
+          self.transfer(callback);
+        });
+      }
+
+      if(/^file:\/\/.*$/i.test(file)) {
+        window.resolveLocalFileSystemURL(file, function (fileEntry) {
+          fileEntry.file(function (f) {
+            self.file = f;
+            self.file.nativeURL = fileEntry.nativeURL;
+            _send();
+          })
+        })
+      }else{
+        self.file = file;
+        _send();
+      }
 
-        self.transfer(callback);
-      });
 
       return self;
     },
@@ -146,6 +209,10 @@ Slingshot.Upload = function (directive, metaData) {
         throw new Error("Cannot transfer file at upload status: " +
           status.curValue);
       }
+      if(self.file.hasOwnProperty('nativeURL'))//cordova File
+      {
+        return cordova_transfer(callback);
+      }
 
       status.set("transferring");
       loaded.set(0);

package.js

@@ -1,7 +1,7 @@
 Package.describe({
   name: "edgee:slingshot",
   summary: "Directly post files to cloud storage services, such as AWS-S3.",
-  version: "0.7.1",
+  version: "0.7.1-test",
   git: "https://github.com/CulturalMe/meteor-slingshot"
 });