RZL-Infoscreen

what and why?

Modifiziertes Repo um einen RPI mit vanilla raspbian als RZL-Infoscreen zu nutzen. Leider raucht die Distribution aufgrund der dauernden reboots und power-cycles durch die Funksteckdose gerne mal ab.

how?

Die Infoscreen-URL und die Fenstergröße ist in der sourcefile hardcoded. Also vorher ggf. ändern, inbesondere wenn ein anderes Display verwendet wird, dann neu kompilieren.

# UPGRADE 03/2017:
# mittlerweile läuft der infoscreen pi aus Gründen(tm) mit archlinuxarm als distribution. 
# Das heißt die entsprechenden commands müssen angepasst werden.
# Im wesentlichen sollte das so funktionieren:

pacman -Syyu
pacman -S base-devel webkitgtk2

# un dann weiter wie bisher.

# remove lightdm
sudo apt-get update
sudo apt-get -y purge lightdm
sudo apt-get -y dist-upgrade 

# ...jetzt erst mal ne Mate, das dauert.

# install packages
sudo apt-get install nodm libwebkit-dev


# compiling on rpi, like a boss.
gcc -o browser browser.c $(pkg-config --libs --cflags gtk+-2.0 webkit-1.0)

sudo cp browser /usr/bin/browser


# Browser mit X-Session laden
vi ~/.xsession


    #!/bin/bash

    xset s noblank     # don't blank the video device
    xset s off         # don't activate screensaver
    xset -dpms         # disable DPMS (Energy Star) features.

    while ! getent hosts cashdesk.rzl ; do
        sleep 1
    done

    /usr/bin/browser


# config nodm
sudoedit /etc/defaults/nodm

    NODM_ENABLED=true
    NODM_USER=pi
    NODM_X_OPTIONS='-nolisten tcp -s 0 dpms'


sudo reboot

Credits

Code von @repat und @pschultz Flatter-Button für repat unten an der README.md

---

This is a minimal WebKit based browser in fullscreen. It's intended use is to display a single web resource non-interactively, while being highly portable, especially to the arm11 architecture (used for the Raspberry Pi), and supporting Javascript and HTML5 Websockets for dynamic content updates. Peter Schultz wrote the original version. See the changes under changelog.

• German blog post about a use case with my raspberry pi on repat.de

Compiling

apt-get install libwebkit-dev
# OR: yum install webkitgtk-devel

gcc -o browser browser.c $(pkg-config --libs --cflags gtk+-2.0 webkit-1.0)

Installing

No special steps are required for installation. Just execute browser. This program was designed to be started via inittab on boot like this:

1:2345:respawn:/usr/bin/startx -e /usr/bin/browser http://10.0.0.5/zfs/monitor tty1 </dev/tty1 >/dev/tty1 2>&1

Usage

./browser

This will launch the browser in fullscreen mode and load the resource fromDEFAULT_URL hardwired in the source. DEFAULT_URL can be anything that WebKit supports, including file://-URLs for local webpages and documents.

The following keybinding exists:

• F5 for reloading the current page It's also implemented as a signal handler:
• HUP for reload

Changelog

• hardwired size(int HEIGHT and int WIDTH)
• hardwired URL (gchar* DEFAULT_URL), no commandline argument
• hardwired position (GTK_WIN_POS_CENTER_ALWAYS)
• no toggle fullscreen with F11, thus removed unmaximize() and USR1
• deleted Makefile, only one command(see above)

Contact

• http://repat.de
• email: repat[at]repat[dot]de
• XMPP: repat@jabber.ccc.de
• Twitter: repat123