Jrmie Melchior Donatien Grolaux Jean Vanderdonckt Peter Van

Jérémie Melchior, Donatien Grolaux, Jean Vanderdonckt, Peter Van Roy Jeremie. Melchior@uclouvain. be Researcher at BCHI, http: //www. isys. ucl. ac. be/bchi Université catholique de Louvain (BELGIUM) EICS 2009 - July 15

Outline - Motivations a. Multi-user interfaces b. Multi-device environments c. Multi-platform user interfaces d. Toolkit for distributed user interfaces e. Peer-to-Peer distribution f. Demonstration g. Future work

Motivations

Multi-user interfaces a. Whenever b. Wherever System User Group User 1 User 2 User NU

Multi-device environments Device 1 Device 2 Device ND User Group User 1 User 2 User NU

Multi-platform user interfaces CP 1 CP 2 CP N CP 1 CP 2 Device 1 CP N Device 2 Device ND User Group User 1 User 2 User NU CP N

Toolkit for distributed user interfaces a. Three-layer structure : a. Application - user interfaces b. Ext/Tk - toolkit for migration and adaptation c. Mozart - for the distribution layer Application Ext/Tk Mozart

Toolkit for distributed user interfaces a. Application layer : a. UI is dynamically migratable a. UI is dynamically adaptable

Toolkit for distributed user interfaces a. Ext/tk : 1°) Creation of the UI UI={Build window( name: window selector( name: selector items: ["Radiobuttons" "Listbox" "Menu"] curselection: 1 text: "Selector" action: proc{$} R={UI. selector get(curselection: $)} in {UI. selector set. Context((default#listbox#menu). R)} end ))} {UI. window show}

Toolkit for distributed user interfaces a. Ext/tk : 2°) Migration of the UI {Offer {UI. selector get. Ref($)}} UI 2={Build window(name: window)} {UI 2. window show} {UI 2. window display({Obtain})}

Toolkit for distributed user interfaces a. Mozart : Multi-paradigm programming language a. Strongly dynamically typed b. Procedural, Object-Orientation c. Functional, Logic and Symbolic programming d. Transparent distribution support a. Distributed network protocols are attached automatically to some of the native data types of OZ

Peer-to-Peer distribution a. Widget : Proxy + Renderer Site A Proxy W Renderer W a. Proxy = stationary, functional core b. Renderer = distributed, user interaction Site A Site B Proxy W Renderer W

Demonstration a. Mozart :

Demonstration a. Ext/tk

Future work a. Android support b. Transparent migration of the top level widget c. Compatibility with Mozart 1. 4. 0 and newer d. High-level operations (window migration, widget copy, . . . )

Bibliography a. Donatien Grolaux, Transparent Migration and Adaptation in a Graphical User Interface Toolkit, Ph. D. dissertation, Department of Computing Science and Engineering, Université catholique de Louvain, Sep. 2007.