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backend: Set up and use ownership chains

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This means objects have an owner, where the chain eventually always
leads to a MetaContext. This also means that all objects can find their
way to other object instances via the chain, instead of scattered global
singletons.

This is a squashed commit originally containing the following:

cursor-tracker: Don't get backend from singleton

idle-manager: Don't get backend from singleton

input-device: Pass pointer to backend during construction

The backend is needed during construction to get the wacom database.

input-mapper: Pass backend when constructing

monitor: Don't get backend from singleton

monitor-manager: Get backend directly from monitor manager

remote: Get backend from manager class

For the remote desktop and screen cast implementations, replace getting
the backend from singletons with getting it via the manager classes.

launcher: Pass backend during construction

device-pool: Pass backend during construction

Instead of passing the (maybe null) launcher, pass the backend, and get
the launcher from there. That way we always have a way to some known
context from the device pool.

drm-buffer/gbm: Get backend via device pool

cursor-renderer: Get backend directly from renderer

input-device: Get backend getter

input-settings: Add backend construct property and getter

input-settings/x11: Don't get backend from singleton

renderer: Get backend from renderer itself

seat-impl: Add backend getter

seat/native: Get backend from instance struct

stage-impl: Get backend from stage impl itself

x11/xkb-a11y: Don't get backend from singleton

backend/x11/nested: Don't get Wayland compositor from singleton

crtc: Add backend property

Adding a link to the GPU isn't enough; the virtual CRTCs of virtual
monitors doesn't have one.

cursor-tracker: Don't get display from singleton

remote: Don't get display from singleton

seat: Don't get display from singleton

backend/x11: Don't get display from singleton

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
This commit is contained in:
Jonas Ådahl
2022-05-27 19:35:01 +02:00
committed by Marge Bot
parent c45ab10c0e
commit c390f70edc
54 changed files with 506 additions and 144 deletions
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2
src/backends/native/meta-input-device-native.c
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@ -1461,6 +1461,7 @@ meta_input_device_native_new_in_impl (MetaSeatImpl *seat_impl,
}
device = g_object_new (META_TYPE_INPUT_DEVICE_NATIVE,
"backend", meta_seat_impl_get_backend (seat_impl),
"name", libinput_device_get_name (libinput_device),
"device-type", type,
"capabilities", capabilities,
@ -1532,6 +1533,7 @@ meta_input_device_native_new_virtual (MetaSeatImpl *seat_impl,
};
device = g_object_new (META_TYPE_INPUT_DEVICE_NATIVE,
"backend", meta_seat_impl_get_backend (seat_impl),
"name", name,
"device-type", type,
"device-mode", mode,