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Diffstat (limited to 'doc/gui-stack-design.md')
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diff --git a/doc/gui-stack-design.md b/doc/gui-stack-design.md index b545520..5da0eeb 100644 --- a/doc/gui-stack-design.md +++ b/doc/gui-stack-design.md @@ -1,6 +1,36 @@ (sorry, in french for the moment) -# Design de la pile GUI +GUI stack design +================ + +Two protocols : + +- GIP (Graphics Initiation Protocol) : one GIP session handles one graphical + framebuffer, a keyboard, a mouse. The buffer is created by the server and + shared to the client with a token (a kernel IPC mechanism for file + descriptors). Reset operation. Possible extention for audio input/output to be + done at this level. +- WMP (Window Management Protocol) : creation of windows and of a GIP channel + for interacting with each window. Usual window managing messages. Hierarchy of + WMP channels : in a WMP channel you can ask for the creation of a sub-channel + ; when a channel is closed all the sub-channels are closed too. + +Software components of the GUI stack : + +- `giosrv` handles the i/o with the hardware and makes that available as a GIP + channel +- login manager : talks to `giosrv`, displays the login manager, and once a + user is logged in, simply proxies the GIP between `giosrv` and the user + desktop manager. Intercepts Ctrl+Alt+Del to lock the current session and go + back to login screen. +- sessin manager : instantiated by login manager, runs with the privileges of + the user. Window managing. +- graphical toolkit library + + +---- + +Version française. Deux protocoles : |