Feature : export to ZIP

src/js/utils/CanvasUtils.js

@@ -44,6 +44,12 @@
     getImageDataFromCanvas : function (canvas) {
       var sourceContext = canvas.getContext('2d');
       return sourceContext.getImageData(0, 0, canvas.width, canvas.height).data;
+    },
+
+    getBase64FromCanvas : function (canvas, format) {
+      format = format || "png";
+      var data = canvas.toDataURL("image/" + format);
+      return data.substr(data.indexOf(',')+1);
     }
   };
 })();

src/js/utils/FileUtils.js

@@ -8,6 +8,21 @@
         callback(event.target.result);
       };
       reader.readAsDataURL(file);
+    },
+
+    downloadAsFile : function (filename, content) {
+      var saveAs = window.saveAs || (navigator.msSaveBlob && navigator.msSaveBlob.bind(navigator));
+      if (saveAs) {
+        saveAs(content, filename);
+      } else {
+        var downloadLink = document.createElement('a');
+        content = window.URL.createObjectURL(content);
+        downloadLink.setAttribute('href', content);
+        downloadLink.setAttribute('download', filename);
+        document.body.appendChild(downloadLink);
+        downloadLink.click();
+        document.body.removeChild(downloadLink);
+      }
     }
   };
-})();
+})();