Hi folks, We’re working on improve EFL to support multi-seat in the same application window.
For make it doable, we’re considering the following approaches: - When using Wayland (Weston compositor) just get seat information from it - When using X11 or FB, use VNC server to gather multiple seats mapped to remote clients To make it possible, the following changes on Evas, Ecore_Evas, Ecore and Ecore_Wl2 APIs are proposed. Please let us read your comments about it =) After this work is done we’ll support it on Edje, but it’s not covered by this discussion (we’ll send another RFC if it seems required at the time). Some tests and PoC were written on this repository: https://github.com/profusion/multi-seat-tests/ Also could somebody please help us creating dev accounts for Iscaro and me? So we could create dev branches and avoid keeping our work on external repositories and making our workflow a bit more straightforward? Thanks in advance = Changes on Evas = - _Evas_Public_Data should contain a hash indexed by seat of focused Evas_Objects. From “pd->focused” to “pd->focused[seat]”. - A function similar to evas_object_top_at_pointer_get(const Evas *e) should be added. This new function will receive the Efl_Input_Device (the seat) as argument. The old function should return the top Evas_Object according to the default seat - evas_canvas_focus_get() should return the object focused by the default seat. - evas_canvas_pointer_canvas_xy_get() Should return the XY from the default seat. - evas_canvas_seat_pointer_canvas_xy_get() - Same thing as evas_canvas_pointer_canvas_xy_get(), however it returns the XY based on the seat. - evas_object_focus_set() - Will set/unset the focus only for the default seat. - evas_object_focus_by_seat_set() should be added - evas_event_feed_hold - Will act in the default seat - Add evas_event_feed_hold_by_seat() - Should we support this ? - Add evas_device_seat_get(Evas_Device *dev); - We may create a helper function in Efl_Input_Device::seat_get - All evas_event_* functions will work on the top most seat. So in order to add an event for ‘seat 1’ one should do: evas_device_push(evas, seatOne); evas_event_*(); evas_device_pop(evas); - Evas will automatically create Evas_Devices = Changes on Ecore_Evas = - ecore_evas_x11_vnc_server_enabled(Ecore_Evas *ee, bool enable); -> This will enable vnc server for the ecore_evas x11 module. - The struct _Ecore_Evas_Interface_X11 should contain a new function with the following signature Eina_Bool _setup_vnc_server() that will create the vnc server and start listening for clients. - ecore_evas_x11_vnc_server_addr_set(Ecore_Evas *ee, const char *addr); - ecore_evas_x11_vnc_server_accept_cb_set(Ecore_Evas *ee, Cb accept_cb); - Ecore_Evas_x11 will create Efl_Input_Devices for every new user and set the emulated seat. - In case of x11 - For every new vnc client an Efl_Input_Device will be created and added to the Evas canvas. = Changes on Evas x11 engine = - A callback will be created in order to notify the ecore_evas_x11 backend with the modified pixels. This will be used to properly draw the VNC remote screen. = Changes on Ecore_Wl2 = - In _Ecore_Wl2_Input - a Eina_Stringshare * will be added to the wl substruct. This Eina_Stringshare * will represent the seat name. - Implement the _seat_cb_name() function in order to collect the seat name. - For every wl_pointer/wl_keyboard/wl_seat it will be create an Efl_Input_Device. The wl_pointer and wl_keyboard will have the wl_seat as parent. After creation of these Efl_Input_Devices an ecore_event will be generated, so ecore_evas_input can grab it and properly add the devices into the canvas. = Ecore = - Ecore_Events structs should contain the Efl_Input_Device that originated the event. - These functions may be useful: - Eina_List *ecore_input_get_seats() - Return all the available seats - Ecore_Seat * ecore_input_seat_find(const char *name) -- Bruno Dilly ProFUSION embedded systems http://profusion.mobi ------------------------------------------------------------------------------ _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
