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x11: Add MetaX11Stack object

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This object takes care of the X11 representation of the window stack,
namely the _NET_CLIENT_LIST and _NET_CLIENT_LIST_STACKING root window
properties.

This code has been lifted from src/core/stack.c into src/x11 as it's
dependent on the X11 display availability. This also leaves MetaStack
squeaky clean of x11 specifics.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/420
This commit is contained in:
Carlos Garnacho
2019-05-07 12:59:50 +02:00
committed by Jonas Ådahl
parent 39bac6eabd
commit ef074ea510
7 changed files with 458 additions and 278 deletions
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26
src/core/stack.h
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@ -56,35 +56,9 @@ struct _MetaStack
/** The MetaDisplay containing this stack. */
MetaDisplay *display;
/**
* A sequence of all the Windows (X handles, not MetaWindows) of the windows
* we manage, sorted in order. Suitable to be passed into _NET_CLIENT_LIST.
*/
GArray *xwindows;
/** The MetaWindows of the windows we manage, sorted in order. */
GList *sorted;
/**
* MetaWindows waiting to be added to the "sorted" and "windows" list, after
* being added by meta_stack_add() and before being assimilated by
* stack_ensure_sorted().
*
* The order of the elements in this list is not important; what is important
* is the stack_position element of each window.
*/
GList *added;
/**
* Windows (X handles, not MetaWindows) waiting to be removed from the
* "windows" list, after being removed by meta_stack_remove() and before
* being assimilated by stack_ensure_sorted(). (We already removed them
* from the "sorted" list.)
*
* The order of the elements in this list is not important.
*/
GList *removed;
/**
* If this is zero, the local stack oughtn't to be brought up to date with
* the X server's stack, because it is in the middle of being updated.