I am trying to add to a web application that I am performing the functionality of downloading a file by saving it wherever the user wants. It would be a kind ofguardar como...
Is there some kind of framework with which this can be done? To make the web application I am using php, html5, jquery and bootstrap.
You can use the FileSaver.js library which provides you with precisely that functionality. Supports all major browsers except Internet Explorer versions prior to 10.
FileSaver.js
FileSaver.js demo
You can use an element and add the bootstrap button classes to it and use the download property for the download
The truth is that I don't think you can force it, that already depends on the web browsers, in Chrome, for example, the option to ask where to save when clicking on "download" is deactivated by default, for example, if you activate that option it will show you the dialog.
You go to
Configuración>Mostrar configuración avanzada...>Descargas
and there it brings acheck
in which you enable or disable the option to ask where to save, there you can check it.You can still check the answer of this user who asked the same thing, I didn't put it here because I don't know if it really works:
StackOverflow
I don't know if I understand you correctly, but that can always be done with the right click. The user selects where to save what he has under the mouse pointer and that's it. Because a web application is something that runs in the browser, so the browser already offers the option to save as. If you clarify a little more what you want to do and where we start from when you say web application, maybe I can help you more.