I want a progress bar which is displayed on every template while the $upload is running in the file controller.
Currently, when I upload a file on a file.html template having a filesController. It starts the progress bar and is displayed on the files.html.
While the progress is on, if I change the template, invoking another controller and then back to the files.html (filesController), the progress bar is no more seen and the upload continues.
How can I have the progress bar shown as a pop up, which stay on every template while its on.
An example is, the upload progress bar in dropbox, google drive.