Web Development for Embedded devices

Development techniques used for targeting wide range of various devices based on HTML platform.

Transcript

1. Development
   for MFPs @jakubfojtl
2. Votes? 1
4. <3
5. Development
   for MFPs Embedded devices @jakubfojtl
6. Multi- Functional Printer
7. •They print things...! •Embedded Operating Systems •Accessible APIs/SDKs (mostly private) •Most of them have “web browser” Things in common
9. No back/ forward No refresh! No address bar No bookmarks :) No statusbar
10. HTML as a platform to offer native-like experience
11. Standards...? ...What do you mean?
12. ACID3 result
13. ACID2 result
14. No standard controls •no radio-buttons •no checkboxes •no scrollbars, etc... There is a textbox, but most of them does not support type=”password”
15. No cookies :-( but a lot of cache <form action=”/?hash=DateTime.Now”> // ... </form>
16. Tooling Let me guess... No tooling? OKAY You can always use Chrome Tools, right?
17. Tooling - debug “Oppa grandma style” function log(msg) { document.getElementById("logo") .innerHTML = msg; }
18. There are some: •remote access (VNC) •emulators (mostly suckz) Tooling
19. Memory& performance AJAX Assets Killers }low
20. Things are getting better
21. the “The Challenge” dealing with heterogenous devices you do NOT have under your control
22. IScanService ? ? ?
23. Too generic vs. Too fat Useless abstraction
24. public ActionResult Xerox_Index() { // adding some Xerox bits } public ActionResult Index() { // happy path var model = new ScanModel(); return View(model); } ScanController.cs
25. |-> ... |-> Start.Xerox.cshtml |-> Start.FujiXerox.cshtml |-> Start.KonicaMinolta.cshtml |-> Start.Sharp.cshtml |-> ... /Views/Scan [ Idea actually stolen from Scott Hanselman ] http://www.hanselman.com/blog/ ABetterASPNETMVCMobileDeviceCapabilitiesViewEngine.aspx
26. conventions conventions convention conventions conventions convention conventions conventions convention conventions conventions convention conventions conventions convention Conventions Everywhere! conventio conventions conventions convention conventions conventions convention conventions conventions convention conventions conventions convention
27. Test your conventions •in order to document them •in order to get feedback early •in order to manage exceptions
28. .NET lib - ConventionTests •http://teststack.net/ConventionTests/ return new ConventionData { Types = t => t.Namespace.StartsWith(“Terminal.Filters”) && t.IsConcrete<ActionFilterAttribute>(), Must = t => t.Name.IncludeAnyKnownVendor() }.WithApprovedExceptions(); Exceptions are stored as plaintext in repository
29. Thank you! @jakubfojtl www.ysoft.com Hope, you had a wonderful time