Yes, That is because tookits tend to push "policy" on to the programmer. But for a kiosk you don't need it. And the "functionality" of the window-manager is sometimes nuicence for the application. You have to give *one* example why a kiosk application *needs* a window-manager. /gh Den 2016-03-18 kl. 06:11, skrev Jasper St. Pierre: > Except for all the functionality that is provided by the window manager: > > http://www.x.org/releases/current/doc/xorg-docs/icccm/icccm.html#Client_to_Window_Manager_Communication > https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html > > I was the lead developer of the mutter window manager for a good 3-4 > years, and I also worked on GTK+ a lot. Toolkits might appear to work > without a WM in place, but there will be lots of subtle behavior > differences. > > The X11 protocol indeed has a design decision of "mechanism, not > policy", which means that since the policy *isn't* in the X server, it > must be somewhere else. That somewhere else is, in a lot of cases, the > window manager. > > On Thu, Mar 17, 2016 at 10:07 PM, Göran Hasse <gorhas@xxxxxxxxxx> wrote: >> Hello! >> >> No not at all! >> >> The window manager is just a "helper". Infact the W-window >> system was written as a "policyfree" environment. It was a design idea *not to have* >> the application dependent on the window - mangager". So this is *not* a strange >> thing at all. *NO*! functionality is dependent on the window mangager! >> >> Some programing toolkit are a little bit crippeled to handle itself in >> respect with resize, fonts and sutch. Gtk have some issues without >> window mangager - but not mutch. If you write a X-window application without >> a toolkit you have compleet control. (This is *verry* akward though). >> >> So if you want to write a kiosk there is *no need* to have a window manger. >> >> /gh >> >> Den 2016-03-18 kl. 06:00, skrev Jasper St. Pierre: >>> I highly recommend against this. A window manager should be around to >>> manage windows, since a lot of functionality to applications is >>> provided by the WM. Having it missing could cause strange bugs. >>> >>> Please just use a lightweight window manager like Matchbox or metacity. >>> >>> On Thu, Mar 17, 2016 at 9:33 PM, Göran Hasse <gorhas@xxxxxxxxxx> wrote: >>>> This is quite simple. >>>> >>>> You have to send in the geometry to the GTK application so that is self >>>> can decide its geometry. >>>> >>>> You don't need any window manager. >>>> >>>> I run a lot of FreeBSD computers this way. >>>> >>>> In rc.local you run something like >>>> >>>> ------------------------------- >>>> #!/usr/local/bin/bash >>>> >>>> /usr/sbin/ntpdate -s 0.ubuntu.pool.ntp.org >>>> >>>> DISPLAY=:0.0 >>>> export DISPLAY >>>> >>>> /usr/local/bin/X -ac & >>>> >>>> # Let the x-server have time to start >>>> sleep 20 >>>> >>>> # Connect from any IP >>>> /usr/local/bin/xhost + & >>>> >>>> # Remove the cursor from the screen, turn off screensaver >>>> /usr/local/bin/unclutter -root -idle 1 & >>>> /usr/local/bin/xset -dpms & >>>> /usr/local/bin/xset s off & >>>> >>>> # set background >>>> # https://en.wikipedia.org/wiki/X11_color_names >>>> /usr/local/bin/xsetroot -solid Grey & >>>> >>>> # show local time >>>> TZ=CEST >>>> export TZ >>>> >>>> # Startscript for infotable at LEV >>>> DISPLAY=192.168.37.88:0.0 ./draw-text -x 0 -y 0 -X 896 -Y 307 -g logo -L "" -f 100 & >>>> ... >>>> >>>> ---------------------------------------------------- >>>> >>>> Note that the gtk-widget have to "resize" itself. So you must program it to >>>> read its own "geometry". x , y , X Y (and some other stuff). >>>> >>>> /gh >>>> >>>> Den 2016-03-18 kl. 01:30, skrev Anatol Pomozov: >>>>> Hi >>>>> >>>>> I am trying to implement a simple Kiosk-like web application. The >>>>> application will run fullscreen all the time and show web pages. I my >>>>> case it will be project's build status. I want to use a simple >>>>> computer like a RaspberryPi. And I want to avoid starting heavy >>>>> environments like KDE or Gnome. >>>>> >>>>> Is there any good example/tutorial on this topic? >>>>> >>>>> In fact I already have a simple GTK application that uses WebKit >>>>> engine. I can run it both in Gnome and without it by using xinit. I >>>>> have a few questions about it: >>>>> >>>>> - gtk_window_fullscreen() works fine with Gnome but with xinit it does >>>>> not expand the window. Does it mean that fullscreen is actually a DE >>>>> feature? What is the best way to make fullscreen app in XWindow? Right >>>>> now I use gdk_screen_get_width/height and then set default size. >>>>> >>>>> - If I run webkit in XWindows it shows pages with horrible fonts. How >>>>> to make the browser fonts similar to what I see in my Gnome desktop? >>>>> Where to start reading about font handling in the modern Linux >>>>> graphical stack? >>>>> >>>>> - It looks like Kodi player at RaspberryPi does not not use xinit at >>>>> all. It looks like RaspberryPi has a direct framebuffer feature. Is it >>>>> possible to do it with my webkit-centric application? I can't find any >>>>> details on this topic. >>>>> >>>>> Did anybody make something similar? I would love to hear the >>>>> experience in making DE-less applications. >>>>> _______________________________________________ >>>>> gtk-list mailing list >>>>> gtk-list@xxxxxxxxx >>>>> https://mail.gnome.org/mailman/listinfo/gtk-list >>>>> >>>> >>>> -- >>>> Göran Hasse >>>> Raditex Control AB >>>> http://www.rscada.se >>>> OrgNr: 556611-8773 >>>> email: gorhas@xxxxxxxxxx >>>> tel: 019-450105 >>>> mob: 070-5530148 >>>> _______________________________________________ >>>> gtk-list mailing list >>>> gtk-list@xxxxxxxxx >>>> https://mail.gnome.org/mailman/listinfo/gtk-list >>> >>> >>> >> >> -- >> Göran Hasse >> Raditex Control AB >> http://www.rscada.se >> OrgNr: 556611-8773 >> email: gorhas@xxxxxxxxxx >> tel: 019-450105 >> mob: 070-5530148 > > > -- Göran Hasse Raditex Control AB http://www.rscada.se OrgNr: 556611-8773 email: gorhas@xxxxxxxxxx tel: 019-450105 mob: 070-5530148 _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
